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1

Ion exchange technology assessment report  

SciTech Connect

In the execution of its charter, the SRS Ion Exchange Technology Assessment Team has determined that ion exchange (IX) technology has evolved to the point where it should now be considered as a viable alternative to the SRS reference ITP/LW/PH process. The ion exchange media available today offer the ability to design ion exchange processing systems tailored to the unique physical and chemical properties of SRS soluble HLW`s. The technical assessment of IX technology and its applicability to the processing of SRS soluble HLW has demonstrated that IX is unquestionably a viable technology. A task team was chartered to evaluate the technology of ion exchange and its potential for replacing the present In-Tank Precipitation and proposed Late Wash processes to remove Cs, Sr, and Pu from soluble salt solutions at the Savannah River Site. This report documents the ion exchange technology assessment and conclusions of the task team.

Duhn, E.F.

1992-12-31T23:59:59.000Z

2

Small Column Ion Exchange at Savannah River Site Technology Readiness Assessment Report  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small Column Ion Exchange Technology at Small Column Ion Exchange Technology at Savannah River Site U.S. Department of Energy Office of Environmental Management Office of Technology Innovation and Development Technology Readiness Assessment Report November 2011 U.S. DOE-EM Office of Technology Innovation and Development November 11, 2011 Small Column Ion Exchange Program Technology Readiness Assessment Page 2 of 112 This page intentionally left blank November 11, 2011 U.S. DOE-EM Office of Technology Innovation and Development Small Column Ion Exchange Program Technology Readiness Assessment Page 3 of 112 APPROVALS ________________________ _ Harry D. Harmon Date

3

Small Column Ion Exchange Technology at Savannah River Site | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small Column Ion Exchange Technology at Savannah River Site Small Column Ion Exchange Technology at Savannah River Site Small Column Ion Exchange Technology at Savannah River Site The Small Column Ion Exchange (SCIX) system being developed for deployment at the Savannah River Site (SRS) is a supplementary salt waste processing technology that, if implemented, will augment the baseline Salt Waste Processing Facility (SWPF) capability. An opportunity exists to shorten the SRS radioactive waste system lifecycle by 6 years, and significantly reduce life cycle costs, by accelerating salt processing to earlier completion, simultaneous with sludge vitrification. As described in the Enhanced Tank Waste Strategy, which is part of the Department of Energy (DOE) Office of Environmental Management (EM) Roadmap - EM Journey to Excellence,

4

LITERATURE REVIEWS TO SUPPORT ION EXCHANGE TECHNOLOGY SELECTION FOR MODULAR SALT PROCESSING  

Science Conference Proceedings (OSTI)

This report summarizes the results of literature reviews conducted to support the selection of a cesium removal technology for application in a small column ion exchange (SCIX) unit supported within a high level waste tank. SCIX is being considered as a technology for the treatment of radioactive salt solutions in order to accelerate closure of waste tanks at the Savannah River Site (SRS) as part of the Modular Salt Processing (MSP) technology development program. Two ion exchange materials, spherical Resorcinol-Formaldehyde (RF) and engineered Crystalline Silicotitanate (CST), are being considered for use within the SCIX unit. Both ion exchange materials have been studied extensively and are known to have high affinities for cesium ions in caustic tank waste supernates. RF is an elutable organic resin and CST is a non-elutable inorganic material. Waste treatment processes developed for the two technologies will differ with regard to solutions processed, secondary waste streams generated, optimum column size, and waste throughput. Pertinent references, anticipated processing sequences for utilization in waste treatment, gaps in the available data, and technical comparisons will be provided for the two ion exchange materials to assist in technology selection for SCIX. The engineered, granular form of CST (UOP IE-911) was the baseline ion exchange material used for the initial development and design of the SRS SCIX process (McCabe, 2005). To date, in-tank SCIX has not been implemented for treatment of radioactive waste solutions at SRS. Since initial development and consideration of SCIX for SRS waste treatment an alternative technology has been developed as part of the River Protection Project Waste Treatment Plant (RPP-WTP) Research and Technology program (Thorson, 2006). Spherical RF resin is the baseline media for cesium removal in the RPP-WTP, which was designed for the treatment of radioactive waste supernates and is currently under construction in Hanford, WA. Application of RF for cesium removal in the Hanford WTP does not involve in-riser columns but does utilize the resin in large scale column configurations in a waste treatment facility. The basic conceptual design for SCIX involves the dissolution of saltcake in SRS Tanks 1-3 to give approximately 6 M sodium solutions and the treatment of these solutions for cesium removal using one or two columns supported within a high level waste tank. Prior to ion exchange treatment, the solutions will be filtered for removal of entrained solids. In addition to Tanks 1-3, solutions in two other tanks (37 and 41) will require treatment for cesium removal in the SCIX unit. The previous SCIX design (McCabe, 2005) utilized CST for cesium removal with downflow supernate processing and included a CST grinder following cesium loading. Grinding of CST was necessary to make the cesium-loaded material suitable for vitrification in the SRS Defense Waste Processing Facility (DWPF). Because RF resin is elutable (and reusable) and processing requires conversion between sodium and hydrogen forms using caustic and acidic solutions more liquid processing steps are involved. The WTP baseline process involves a series of caustic and acidic solutions (downflow processing) with water washes between pH transitions across neutral. In addition, due to resin swelling during conversion from hydrogen to sodium form an upflow caustic regeneration step is required. Presumably, one of these basic processes (or some variation) will be utilized for MSP for the appropriate ion exchange technology selected. CST processing involves two primary waste products: loaded CST and decontaminated salt solution (DSS). RF processing involves three primary waste products: spent RF resin, DSS, and acidic cesium eluate, although the resin is reusable and typically does not require replacement until completion of multiple treatment cycles. CST processing requires grinding of the ion exchange media, handling of solids with high cesium loading, and handling of liquid wash and conditioning solutions. RF processing requires h

King, W

2007-11-30T23:59:59.000Z

5

Summary - Small Column Ion Exchange (SCIX)Technology at the SRS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ETR ETR R Un Baseline The Sm being The SC operat which Sr, and waste critical the SC deploy Specif exchan [CST]) CST, a (mono and so (RMF) maturi readin design moving The pu techni projec Site: S roject: S E Report Date: F ited States Sma Why DOE e SCIX System Pr mall Column Io developed at S CIX system is tions (ion excha function to rem d actinides) fro and prepare th l technology ele CIX system tha yment and thes fically the critica nge on a selec ) housed in an actinide and Sr osodium titanat olids/liquid sepa ). The objectiv ty of the SCIX ess of the proc n, and to provid g towards deta To view the full E http://www.em.doe. urpose of an Externa ical risk associated w ct decisions. Technic Savannah Rive Small Column Exchange/SCIX Feb. 2011 Departmen ll Colum E-EM Did This rocess Diagram on Exchange (S

6

Ion exchange phenomena  

Science Conference Proceedings (OSTI)

Ion exchange phenomena involve the population of readily exchangeable ions, the subset of adsorbed solutes that balance the intrinsic surface charge and can be readily replaced by major background electrolyte ions (Sposito, 2008). These phenomena have occupied a central place in soil chemistry research since Way (1850) first showed that potassium uptake by soils resulted in the release of an equal quantity of moles of charge of calcium and magnesium. Ion exchange phenomena are now routinely modeled in studies of soil formation (White et al., 2005), soil reclamation (Kopittke et al., 2006), soil fertilitization (Agbenin and Yakubu, 2006), colloidal dispersion/flocculation (Charlet and Tournassat, 2005), the mechanics of argillaceous media (Gajo and Loret, 2007), aquitard pore water chemistry (Tournassat et al., 2008), and groundwater (Timms and Hendry, 2007; McNab et al., 2009) and contaminant hydrology (Chatterjee et al., 2008; van Oploo et al., 2008; Serrano et al., 2009).

Bourg, I.C.; Sposito, G.

2011-05-01T23:59:59.000Z

7

Technology Performance Exchange  

NLE Websites -- All DOE Office Websites (Extended Search)

Technology Performance Exchange TDM - Jason Koman (BTO) TDM - Dave Catarious (FEMP) William Livingood National Renewable Energy Laboratory William.Livingood@nrel.gov 303-384-7490...

8

Ion exchange technology in the remediation of uranium contaminated groundwater at Fernald  

SciTech Connect

Using pump and treat methodology, uranium contaminated groundwater is being removed from the Great Miami Aquifer at the Fernald Environmental Management Project (FEMP) per the FEMP Record of Decision (ROD) that defines groundwater cleanup. Standard extraction wells pump about 3900 gallons-per-minute (gpm) from the aquifer through five ion exchange treatment systems. The largest treatment system k the Advanced Wastewater Treatment (AWWT) Expansion System with a capacity of 1800 gpm, which consists of three trains of two vessels. The trains operate in parallel treating 600 gpm each, The two vessels in each train operate in series, one in lead and one in lag. Treated groundwater is either reinfected back into the aquifer to speed up the aquifer cleanup processor discharged to the Great Miami River. The uranium regulatory ROD limit for discharge to the river is 20 parts per billion (ppb), and the FEMP uranium administrative action level for reinfection is 10 ppb. Spent (i.e., a resin that no longer adsorbs uranium) ion exchange resins must either be replaced or regenerated. The regeneration of spent ion exchange resins is considerably more cost effective than their replacement. Therefore, a project was undertaken to learn how best to regenerate the resins in the groundwater vessels. At the outset of this project, considerable uncertainty existed as to whether a spent resin could be regenerated successfully enough so that it performed as well as new resin relative to achieving very low uranium concentrations in the effluent. A second major uncertain y was whether the operational lifetime of a regenerated resin would be similar to that of a new resin with respect to uranium loading capacity and effluent concentration behavior. The project was successful in that a method for regenerating resins has been developed that is operationally efficient, that results in regenerated resins yielding uranium concentrations much lower than regulatory limits, and that results in regenerated resins with operational lifetimes comparable to new resins.

Chris Sutton; Cathy Glassmeyer; Steve Bozich

2000-09-29T23:59:59.000Z

9

Technology Performance Exchange  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Performance Exchange Technology Performance Exchange TDM - Jason Koman (BTO) TDM - Dave Catarious (FEMP) William Livingood National Renewable Energy Laboratory William.Livingood@nrel.gov 303-384-7490 April 2, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem: Perceived fiscal risk associated with the installation of unfamiliar technologies impedes adoption rates for cost-effective, energy-saving products. Impact of Project: Enable end users to quickly and

10

Phosphonic acid based ion exchange resins  

DOE Patents (OSTI)

An ion exchange resin is described for extracting metal ions from a liquid waste stream. An ion exchange resin is prepared by copolymerizing a vinylidene diphosphonic acid with styrene, acrylonitrile and divinylbenzene. 9 figures.

Horwitz, E.P.; Alexandratos, S.D.; Gatrone, R.C.; Chiarizia, R.

1994-01-25T23:59:59.000Z

11

Technology Performance Exchange (Fact Sheet)  

SciTech Connect

This fact sheet, 'The Technology Performance Exchange' will be presented at the ET Summit, held at the Pasadena Convention Center on October 15-17, 2012. The Technology Performance Exchange will be a centralized, Web-based portal for finding and sharing energy performance data for commercial building technologies.

Not Available

2012-10-01T23:59:59.000Z

12

Ion Concentration and Stress Profile Modifications of Ion Exchanged ...  

Science Conference Proceedings (OSTI)

Ion Exchanged Mixed Glass Cullet Proppants for Stimulation of Oil and Natural Gas Bearing Shales · Modeling the Electrical Conductivity in Glass Melts.

13

Technology Performance Exchange | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Performance Exchange Performance Exchange Technology Performance Exchange A collaboration between the U.S. Department of Energy's (DOE's) Federal Energy Management Program Office and the Building Technologies Office, the Technology Performance Exchange will establish a Web-based portal and accompanying database that allows technology suppliers to submit product performance data that private and public sector end users can use to make fact-based procurement decisions. Suppliers will populate the database with technologies that affect building activities, including construction, commissioning, maintenance, monitoring, equipment, and verification. This project will help the U.S. energy efficiency technology market by providing objective product performance data to building engineers and

14

Separation of organic ion exchange resins from sludge -- engineering study  

SciTech Connect

This engineering study evaluates the use of physical separation technologies to separate organic ion exchange resin from KE Basin sludge prior to nitric acid dissolution. This separation is necessitate to prevent nitration of the organics in the acid dissolver. The technologies under consideration are: screening, sedimentation, elutriation. The recommended approach is to first screen the Sludge and resin 300 microns then subject the 300 microns plus material to elutriation.

Duncan, J.B.

1998-08-25T23:59:59.000Z

15

Thermal Analysis of LANL Ion Exchange Column  

Science Conference Proceedings (OSTI)

This document reports results from an ion exchange column heat transfer analysis requested by Los Alamos National Laboratory (LANL). The object of the analysis is to demonstrate that the decay heat from the Pu-238 will not cause resin bed temperatures to increase to a level where the resin significantly degrades.

Laurinat, J.E.

1999-06-16T23:59:59.000Z

16

Building Technologies Office: Technology Performance Exchange...  

NLE Websites -- All DOE Office Websites (Extended Search)

AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides Building Energy Data Exchange...

17

Exploration of Ion-Exchanged Glass for Seals Applications  

E-Print Network (OSTI)

As the nuclear industry grows around the globe, it brings with it a need for more safeguards and proliferation resistant technologies. The International Atomic Energy Agency (IAEA) depends on effective containment and surveillance (C/S) technologies and methods for maintaining continuity of knowledge over nuclear assets. Tags and seals, a subset of C/S technologies, are an area where innovation has been relatively stagnant for the past fifteen years. It is necessary to investigate technologies not previously used in this field in order to defend against emerging threats and methods of defeat. Based on a gap analysis of tags and seals currently being used by the IAEA, completed with the input of several subject matter experts, the technology selected for investigation was ion-exchanged glass. Ion-exchanged glass is relatively inexpensive, has high strength, and can be used in a variety of applications. If identical pieces of glass are exchanged under the same conditions and subjected to the same point load, the fracture patterns produced can be compared and used as a verification measure. This technology has the potential to be used in passive seal applications. Each image was categorized depending on its fracture as a "3 leaf" or "4 leaf" pattern. These two populations were separately analyzed and evaluated. Several methods used to analyze the fracture patterns involve the use of image analysis software such as ImageJ and the MATLAB Control Point Selection Tool. The statistical analysis software Minitab was used to validate the use of facture pattern analysis as verification tool. The analysis yielded a 60% verified comparison for samples demonstrating a "3 leaf" fracture pattern and a 78% verified comparison for samples with a "4 leaf" fracture pattern. This preliminary analysis provides a strong indication of the plausibility for the use of ion-exchanged glass as a verification measure for C/S measures and specifically tags and seals.

Ghanbari, Roushan

2011-08-01T23:59:59.000Z

18

Glass Ion Exchange: One Century of "Tough" Applications  

Science Conference Proceedings (OSTI)

... ion-exchange to glass components such as pharmaceutical packaging, transparent lightweight armor, transparencies for private vehicles, trains and aircrafts, ...

19

Porous solid ion exchange wafer for immobilizing biomolecules  

DOE Patents (OSTI)

A porous solid ion exchange wafer having a combination of a biomolecule capture-resin and an ion-exchange resin forming a charged capture resin within said wafer. Also disclosed is a porous solid ion exchange wafer having a combination of a biomolecule capture-resin and an ion-exchange resin forming a charged capture resin within said wafer containing a biomolecule with a tag. A separate bioreactor is also disclosed incorporating the wafer described above.

Arora, Michelle B. (Woodridge, IL); Hestekin, Jamie A. (Morton Grove, IL); Lin, YuPo J. (Naperville, IL); St. Martin, Edward J. (Libertyville, IL); Snyder, Seth W. (Lincolnwood, IL)

2007-12-11T23:59:59.000Z

20

ION EXCHANGE ADSORPTION PROCESS FOR PLUTONIUM SEPARATION  

DOE Patents (OSTI)

Ion exchange processes for the separation of plutonium from fission products are described. In accordance with these processes an aqueous solution containing plutonium and fission products is contacted with a cation exchange resin under conditions favoring adsorption of plutonium and fission products on the resin. A portion of the fission product is then eluted with a solution containing 0.05 to 1% by weight of a carboxylic acid. Plutonium is next eluted with a solution containing 2 to 8 per cent by weight of the same carboxylic acid, and the remaining fission products on the resin are eluted with an aqueous solution containing over 10 per cent by weight of sodium bisulfate.

Boyd, G.E.; Russell, E.R.; Taylor, M.D.

1961-07-11T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Nanomaterials-Enhanced Electrically Switched Ion Exchange Process for Water Treatment  

Science Conference Proceedings (OSTI)

The objective of our work is to develop an electrically switched ion exchange (ESIX) system based on conducting polymer/carbon nanotube (CNT) nanocomposites as a new and cost-effective approach for removal of radioactive cesium, chromate, and perchlorate from contaminated groundwater. The ESIX technology combines ion exchange and electrochemistry to provide a selective, reversible method for the removal of target species from wastewater. In this technique, an electroactive ion exchange layer is deposited on a conducting substrate, and ion uptake and elution are controlled directly by modulation of the potential of the layer. ESIX offers the advantages of highly-efficient use of electrical energy combined with no secondary waste generation. Recently, we have improved upon the ESIX process by modifying the conducting substrate with carbon nanotubes prior to the deposition of the electroactive ion exchanger. The nanomaterial-based electroactive ion exchange technology will remove cesium-137, chromate, and perchlorate rapidly from wastewater. The high porosity and high surface area of the electroactive ion exchange nanocomposites results in high loading capacity and minimize interferences for non-target species. Since the ion adsorption/desorption is controlled electrically without generating a secondary waste, this electrically active ion exchange process is a green process technology that will greatly reduce operating costs.

Lin, Yuehe; Choi, Daiwon; Wang, Jun; Bontha, Jagannadha R.

2009-01-01T23:59:59.000Z

22

Charge exchange processes involving iron ions  

DOE Green Energy (OSTI)

A review and evaluation is given of the experimental data which are available for charge exchange processes involving iron ions and neutral H, H/sub 2/ and He. Appropriate scaling laws are presented, and their accuracy estimated for these systems. A bibliography is given of available data sources, as well as of useful data compilations and review articles. A procedure is recommended for providing single approximate formulae to the fusion community to describe total cross sections for electron capture by partially-stripped Fe/sup q+/ ions in collisions with H, H/sub 2/ and He, based on the scaling relationships suggested by Janev and Hvelplund.

Phaneuf, R.A.

1985-01-01T23:59:59.000Z

23

Indentation behavior of ion-exchanged glasses  

SciTech Connect

This paper reports indentation fracture mechanics extended to include the effect of a thin layer of residual stress on the indentation strength of brittle materials. The proposed theory was used to predict the residual stress values for an ion-exchanged glass. For flaws placed before the exchange, considerable strengthening was observed, but the value of the surface stress predicted was considerable underestimated. For flaws placed after the exchange, there was no strengthening and the value of the surface stress was predicted to be zero. The failure of the indentation analysis indicates that it has to be modified for accurate stress determination. Thin layers of residual stress were found to retard the initiation of surface damage, but their influence on the strength after damage initiation was minimal.

Tandon, R.; Green, D.J. (Dept. of Materials Science and Engineering, Pennsylvania State Univ., University Park, PA (US))

1990-04-01T23:59:59.000Z

24

Energy Technology Data Exchange | Open Energy Information  

Open Energy Info (EERE)

Exchange Exchange Jump to: navigation, search Logo: Energy Technology Data Exchange Name Energy Technology Data Exchange Address P.O. Box 62 Place Oak Ridge, Tennessee Zip 37831 Year founded 1987 Phone number 865 576 1272 Coordinates 36.0103°, -84.2698° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.0103,"lon":-84.2698,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

25

Ion-exchanged MnO2 nanoparticles as cathodes of lithium ion ...  

Science Conference Proceedings (OSTI)

Presentation Title, Ion-exchanged MnO2 nanoparticles as cathodes of lithium ion batteries at elevated temperatures. Author(s), Dawei Liu, Jasper Wright, Wei ...

26

B Plant ion exchange feed line leak  

SciTech Connect

>One of the objectives of the Waste Management Program is to separate the long-lived heat emitter /aup 137/Cs from the bulk of the high-level Iiquid wastes. This separation is accomplished by the ion exchange process in the 221-B Building. Interim storage of the cesium is in solution as a nitrate. The feed for the B Plant cesinm ion exchange process is pumped from the lag storage tank, 105-C, through a pipeline and several diversion boxes to the 221-B Building. On December 19, 1969, a leak was discovered near the 241-C-152 diversion box in the section of this line, V-122, from the 105-C tank. Although the leak represented a loss of feed for the processing of /sup 137/Cs, more important was the consequence of environmental contmination to the soil from the line leak. For this reason, an investigation was made to estblish the extent of the radioactivity spread. The results of a well drilling operation undertaken to define the boundary and to estimate the extent of the leak are summarized. (CR)

Tanaka, K.H.

1971-01-25T23:59:59.000Z

27

Building Technologies Office: HVAC Optimized Heat Exchangers Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimized Heat Optimized Heat Exchangers Research Project to someone by E-mail Share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Facebook Tweet about Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Twitter Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Google Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Delicious Rank Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Digg Find More places to share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research

28

Building Technologies Office: Building Energy Data Exchange Specification  

NLE Websites -- All DOE Office Websites (Extended Search)

Building Energy Data Building Energy Data Exchange Specification to someone by E-mail Share Building Technologies Office: Building Energy Data Exchange Specification on Facebook Tweet about Building Technologies Office: Building Energy Data Exchange Specification on Twitter Bookmark Building Technologies Office: Building Energy Data Exchange Specification on Google Bookmark Building Technologies Office: Building Energy Data Exchange Specification on Delicious Rank Building Technologies Office: Building Energy Data Exchange Specification on Digg Find More places to share Building Technologies Office: Building Energy Data Exchange Specification on AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides

29

Ion-Exchanged Glass with High Damage Resistance  

Science Conference Proceedings (OSTI)

Ion Exchanged Mixed Glass Cullet Proppants for Stimulation of Oil and Natural Gas Bearing Shales · Modeling the Electrical Conductivity in Glass Melts.

30

Ion Exchanged Mixed Glass Cullet Proppants for Stimulation of Oil ...  

Science Conference Proceedings (OSTI)

Symposium, Glass and Optical Materials. Presentation Title, Ion Exchanged Mixed Glass Cullet Proppants for Stimulation of Oil and Natural Gas Bearing Shales.

31

TECHNICAL COMPARISON OF CANDIDATE ION EXCHANGE MEDIA FOR SMALL COLUMN ION EXCHANGE (SCIX) APPLICATIONS IN SUPPORT OF SUPPLEMENTAL LAW PRETREATMENT  

SciTech Connect

At-tank supplemental pretreatment including both filtration and small column ion exchange is currently under evaluation to facilitate salt waste retrieval and processing in the Hanford tank farms. Spherical resorcinol formaldehyde (sRF) resin is the baseline ion exchange resin for use in the Waste Treatment and Immobilization Plant (WTP). This document provides background and technical rationale to assist in determining whether spherical resorcinol formaldehyde (sRF) is also the appropriate ion exchange resin for supplemental LAW pretreatment processes and compares sRF with crystalline silicotitanate (CST) as potential supplemental pretreatment ion exchange media.

RAMSEY AA; THORSON MR

2010-12-28T23:59:59.000Z

32

Scintillating 99Tc Selective Ion Exchange Resins  

Science Conference Proceedings (OSTI)

Scintillating technetium (99Tc) selective ion exchange resins have been developed and evaluated for equilibrium capacities and detection efficiencies. These resins can be utilized for the in-situ concentration and detection of low levels of pertechnetate anions (99TcO4-) in natural waters. Three different polystyrene type resin support materials were impregnated with varying amounts of tricaprylmethylammonium chloride (Aliquat 336) extractant, several different scintillating fluors and wavelength shifters. The prepared resins were contacted batch-wise to equilibrium over a wide range of 99TcO4- concentrations in natural water. The measured capacities were used to develop Langmuir adsorption isotherms for each resin. 99Tc detection efficiencies were determined and up to 71.4 ± 2.6% was achieved with some resins. The results demonstrate that a low level detection limit for 99TcO4- in natural waters can be realized.

Mitchell Greenhalgh; Richard D. Tillotson

2012-07-01T23:59:59.000Z

33

Waste treatment by selective mineral ion exchanger  

Science Conference Proceedings (OSTI)

STMI, subsidiary company of the AREVA Group with over 40 years in the D and D business, has been continuously innovating and developing new decontamination techniques, with the objectives of achieving more efficient decontaminations on a growing spectrum of media. In the field of liquid waste treatment, STMI manufactures uses and commercialises selective inorganic ion exchangers (RAN). These are hydrated synthetic inorganic compounds prepared from very pure raw materials. Different types of RANs (POLYAN, OXTAIN, Fe-Cu, Fe-CoK, Si-Fe-CoK) can be used to trap a large number of radioactive elements in contaminated effluents. Different implementations could be applied depending on technical conditions. STMI's offers consist in building global solution and preliminary design of installation either in dispersed form (batch) or in column (cartridge filtration). Those products are used all over the world not only in the nuclear business (Canada, US, Belgium, France...) but also in other fields. Indeed, it provides competitive solutions to many domains of application especially water pollution control, liquid waste treatment in the nuclear business by decreasing the activity level of waste. The following paper will focus on the theoretical principle of the mineral exchanger, its implementation and the feed back collected by STMI. (author)

Polito, Aurelie [Areva NC - BUA STMI, 1 route de la Noue - 91196 Gif sur Yvette, Cedex (France)

2007-07-01T23:59:59.000Z

34

Nitrate and Perchlorate removal from groundwater by ion exchange  

SciTech Connect

This study was conducted to evaluate the performance of a small scale ion exchange unit (Krudico, Inc of Auborn, IA) for removal of nitrate and perchlorate from groundwater at Lawrence Livermore National Laboratory's Site 300. The unit was able to treat 3,600 gallons of Site 300 groundwater, at an average influent concentration of 100 mg/L NO{sub 3}{sup -} before breakthrough occurred. The unit contained 2.5 ft{sup 3} of Sybron SR-7 resin. Seventy gallons of regeneration waste were generated (water treated to waste ratio of 51:1). The effluent concentration was about 20 mg/L NO{sub 3}{sup -}, which is equivalent to a treatment efficiency of at least 80%. There are several options for implementing this technology at Site 300. A target well, in the 817 area, has been selected. It has a 3 to 4 gpm flow rate, and concentrations of 90 mg/L NO{sub 3}{sup -} and 40 {micro}g/L perchlorate. The different treatment options include ion exchange treatment of nitrate only, nitrate and perchlorate, or perchlorate only. Option 1: For the treatment of nitrate only, this unit will be able to treat 3,700 gallons of water before regeneration is required. If both columns of the ion exchange unit are used, 7,400 gallons could be treated before the columns will need to be regenerated (producing 140 gallons of waste, per cycle or every 1.5 days). The effluent nitrate concentration is expected to be about 17 mg/L. Annual operation and maintenance costs are estimated to be $0.14 per gallon of water treated. Option 2: If only perchlorate is to be removed with ion exchange at the 817 area, a smaller unit should be considered. A 55 gallon canister filled with ion exchange resin should be able to reduce perchlorate concentrations in the groundwater from 40 {micro}g/L to non-detect levels for three years before the resin would need to be replaced. The contaminant-laden resin would be disposed of as hazardous waste. It is not practical to regenerate the resin because of the extreme difficulty of removing perchlorate from the resin. Due to the selectivity of the ion exchange resin, it will also be possible to selectively remove perchlorate from nitrate-contaminated water. Annual operation and maintenance costs are estimated to be $0.02 per gallon of water treated. Option 3: Another alternative is to treat both perchlorate and nitrate. A three column unit would be built. The first column would capture perchlorate and the resin would be replaced rather than regenerated. The second and third column would be operated as under Option 1 to treat nitrate. Annual operation and maintenance costs are estimated to be $0.14 per gallon of water treated.

Burge, S; Halden, R

1999-09-15T23:59:59.000Z

35

Tc-99 Ion Exchange Resin Testing  

Science Conference Proceedings (OSTI)

Pacific Northwest National Laboratory was contracted by CHPRC to evaluate the release of 99Tc from spent resin used to treat water from well 299-W15-765 and stored for several years. The key questions to be answered are: 1) does 99Tc readily release from the spent ion exchange resin after being in storage for several years; 2) if hot water stripping is used to remove the co-contaminant carbon tetrachloride, will 99Tc that has been sequestered by the resin be released; and 3) can spent resin be encapsulated into a cementitious waste form; if so, how much 99Tc would be released from the weathering of the monolith waste form? The results from the long term stability leach test results confirm that the resin is not releasing a significant amount of the sequestered 99Tc, evident by the less than 0.02% of the total 99Tc loaded being identified in the solution. Furthermore, it is possible that the measured 99Tc concentration is the result of 99Tc contained in the pore spaces of the resin. In addition to these results, analyses conducted to examine the impact of hot water on the release of 99Tc suggest that only a small percentage of the total is being released. This suggest that hot water stripping to remove carbon tetrachloride will not have a significant affect on the resin’s ability to hold-on to sequestered 99Tc. Finally, encapsulation of spent resin in a cementitious material may be a viable disposal option, but additional tests are needed to examine the extent of physical degradation caused by moisture loss and the effect this degradation process can have on the release of 99Tc.

Valenta, Michelle M.; Parker, Kent E.; Pierce, Eric M.

2010-08-01T23:59:59.000Z

36

IEA Energy Technology Data Exchange | Open Energy Information  

Open Energy Info (EERE)

IEA Energy Technology Data Exchange IEA Energy Technology Data Exchange Jump to: navigation, search Tool Summary Name: IEA Energy Technology Data Exchange Agency/Company /Organization: International Energy Agency Sector: Energy Topics: Technology characterizations Resource Type: Dataset Website: www.etde.org/ References: IEA Energy Technology Data Exchange[1] Mission "ETDE's mission is: "To provide governments, industry and the research community in the member countries with access to the widest range of information on energy research, science and technology and to increase dissemination of this information to developing countries."" References ↑ "IEA Energy Technology Data Exchange" Retrieved from "http://en.openei.org/w/index.php?title=IEA_Energy_Technology_Data_Exchange&oldid=32878

37

Small Column Ion Exchange Design and Safety Strategy  

SciTech Connect

Small Column Ion Exchange (SCIX) is a transformational technology originally developed by the Department of Energy (DOE) Environmental Management (EM-30) office and is now being deployed at the Savannah River Site (SRS) to significantly increase overall salt processing capacity and accelerate the Liquid Waste System life-cycle. The process combines strontium and actinide removal using Monosodium Titanate (MST), Rotary Microfiltration, and cesium removal using Crystalline Silicotitanate (CST, specifically UOP IONSIV{reg_sign}IE-911 ion exchanger) to create a low level waste stream to be disposed in grout and a high level waste stream to be vitrified. The process also includes preparation of the streams for disposal, e.g., grinding of the loaded CST material. These waste processing components are technically mature and flowsheet integration studies are being performed including glass formulations studies, application specific thermal modeling, and mixing studies. The deployment program includes design and fabrication of the Rotary Microfilter (RMF) assembly, ion-exchange columns (IXCs), and grinder module, utilizing an integrated system safety design approach. The design concept is to install the process inside an existing waste tank, Tank 41H. The process consists of a feed pump with a set of four RMFs, two IXCs, a media grinder, three Submersible Mixer Pumps (SMPs), and all supporting infrastructure including media receipt and preparation facilities. The design addresses MST mixing to achieve the required strontium and actinide removal and to prevent future retrieval problems. CST achieves very high cesium loadings (up to 1,100 curies per gallon (Ci/gal) bed volume). The design addresses the hazards associated with this material including heat management (in column and in-tank), as detailed in the thermal modeling. The CST must be size reduced for compatibility with downstream processes. The design addresses material transport into and out of the grinder and includes provisions for equipment maintenance including remote handling. The design includes a robust set of nuclear safety controls compliant with DOE Standard (STD)-1189, Integration of Safety into the Design Process. The controls cover explosions, spills, boiling, aerosolization, and criticality. Natural Phenomena Hazards (NPH) including seismic event, tornado/high wind, and wildland fire are considered. In addition, the SCIX process equipment was evaluated for impact to existing facility safety equipment including the waste tank itself. SCIX is an innovative program which leverages DOE's technology development capabilities to provide a basis for a successful field deployment.

Huff, T.; Rios-Armstrong, M.; Edwards, R.; Herman, D.

2011-02-07T23:59:59.000Z

38

Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger  

NLE Websites -- All DOE Office Websites (Extended Search)

Radial Air Bearing Radial Air Bearing Heat Exchanger Research Project to someone by E-mail Share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Facebook Tweet about Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Twitter Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Google Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Delicious Rank Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Digg Find More places to share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE

39

EXPERIMENTAL ION EXCHANGE COLUMN WITH SUPERLIG 639 AND SIMULANT FORMULATION  

SciTech Connect

SuperLig®639 ion exchange resin was tested as a retrieval mechanism for pertechnetate, through decontamination of a perrhenate spiked 5M Simple Average Na{sup +} Mass Based Simulant. Testing included batch contacts and a three-column ion exchange campaign. A decontamination of perrhenate exceeding 99% from the liquid feed was demonstrated. Analysis of the first formulation of a SBS/WESP simulant found unexpectedly low concentrations of soluble aluminum. Follow-on work will complete the formulation.

Morse, Megan; Nash, C.

2013-08-26T23:59:59.000Z

40

Desalination of brackish waters using ion exchange media.  

Science Conference Proceedings (OSTI)

An environmentally friendly method and materials study for desalinating inland brackish waters (i.e., coal bed methane produced waters) using a set of ion-exchange materials is presented. This desalination process effectively removes anions and cations in separate steps with minimal caustic waste generation. The anion-exchange material, hydrotalcite (HTC), exhibits an ion-exchange capacity (IEC) of {approx} 3 mequiv g{sup -1}. The cation-exchange material, an amorphous aluminosilicate permutite-like material, (Na{sub x+2y}Al{sub x}Si{sub 1-x}O{sub 2+y}), has an IEC of {approx}2.5 mequiv g{sup -1}. These ion-exchange materials were studied and optimized because of their specific ion-exchange capacity for the ions of interest and their ability to function in the temperature and pH regions necessary for cost and energy effectiveness. Room temperature, minimum pressure column studies (once-pass through) on simulant brackish water (total dissolved solids (TDS) = 2222 ppm) resulted in water containing TDS = 25 ppm. A second once-pass through column study on actual produced water (TDS = {approx}11,000) with a high carbonate concentration used an additional lime softening step and resulted in a decreased TDS of 600 ppm.

Pless, Jason D.; Krumhansl, James Lee; Nenoff, Tina Maria; Voigt, James A.; Phillips, Mark L. F.; Axness, Marlene; Moore, Diana Lynn

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Desalination of brackish waters using ion-exchange media  

Science Conference Proceedings (OSTI)

An environmentally friendly method and materials study for desalinating inland brackish waters (i.e., coal bed methane produced waters) using a set of ion-exchange materials is presented. This desalination process effectively removes anions and cations in separate steps with minimal caustic waste generation. The anion-exchange material, hydrotalcite (HTC), exhibits an ion-exchange capacity (IEC) of around 3 mequiv g{sup -1}. The cation-exchange material, an amorphous aluminosilicate permutite-like material, (Na{sub x}+2yAl{sub x}Si{sub 1}-xO{sub 2+y}), has an IEC of around to 2.5 mequiv g{sup -1}. These ion-exchange materials were studied and optimized because of their specific ion-exchange capacity for the ions of interest and their ability to function in the temperature and pH regions necessary for cost and energy effectiveness. Room temperature, minimum pressure column studies (once-pass through) on simulant brackish water (total dissolved solids (TDS) = 2222 ppm) resulted in water containing TDS = 25 ppm. A second once-pass through column study on actual produced water (TDS = similar to 11 000) with a high carbonate concentration used an additional lime softening step and resulted in a decreased TDS of 600 ppm.

Pless, J.D.; Philips, M.L.F.; Voigt, J.A.; Moore, D.; Axness, M.; Krumhansl, J.L.; Nenoff, T.M. [Sandia National Labs., Albuquerque, NM (United States)

2006-06-21T23:59:59.000Z

42

RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN CHEMISTRY FOR HIGH LEVEL WASTE TREATMENT  

Science Conference Proceedings (OSTI)

A principal goal at the Savannah River Site is to safely dispose of the large volume of liquid nuclear waste held in many storage tanks. In-tank ion exchange technology is being considered for cesium removal using a polymer resin made of resorcinol formaldehyde that has been engineered into microspheres. The waste under study is generally lower in potassium and organic components than Hanford waste; therefore, the resin performance was evaluated with actual dissolved salt waste. The ion exchange performance and resin chemistry results are discussed.

Nash, C.; Duignan, M.

2010-01-14T23:59:59.000Z

43

MINOR ACTINIDE SEPARATIONS USING ION EXCHANGERS OR IONIC LIQUIDS  

SciTech Connect

This project seeks to determine if (1) inorganic-based ion exchange materials or (2) electrochemical methods in ionic liquids can be exploited to provide effective Am and Cm separations. Specifically, we seek to understand the fundamental structural and chemical factors responsible for the selectivity of inorganic-based ion-exchange materials for actinide and lanthanide ions. Furthermore, we seek to determine whether ionic liquids can serve as the electrolyte that would enable formation of higher oxidation states of Am and other actinides. Experiments indicated that pH, presence of complexants and Am oxidation state exhibit significant influence on the uptake of actinides and lanthanides by layered sodium titanate and hybrid zirconium and tin phosphonate ion exchangers. The affinity of the ion exchangers increased with increasing pH. Greater selectivity among Ln(III) ions with sodium titanate materials occurs at a pH close to the isoelectric potential of the ion exchanger. The addition of DTPA decreased uptake of Am and Ln, whereas the addition of TPEN generally increases uptake of Am and Ln ions by sodium titanate. Testing confirmed two different methods for producing Am(IV) by oxidation of Am(III) in ionic liquids (ILs). Experimental results suggest that the unique coordination environment of ionic liquids inhibits the direct electrochemical oxidation of Am(III). The non-coordinating environment increases the oxidation potential to a higher value, while making it difficult to remove the inner coordination of water. Both confirmed cases of Am(IV) were from the in-situ formation of strong chemical oxidizers.

Hobbs, D.; Visser, A.; Bridges, N.

2011-09-20T23:59:59.000Z

44

Microsoft Word - Nano-sized Ion Exchange Particles.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

Reducing Ion Exchange Particles to Nano-Size Shows Big Potential Reducing Ion Exchange Particles to Nano-Size Shows Big Potential AIKEN, S.C. (January 30, 2012) - Sometimes bigger isn't better. Researchers at the U.S. Department of Energy's Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications. MST is an ion exchange material used to decontaminate radioactive and industrial wastewater solutions, and has been shown to be an effective way to deliver metals into living cells for some types of medical treatment. Typically, MST, and a modified form known as mMST developed by SRNL and Sandia National Laboratories, are in the form of fine powders, spherically-shaped particles about 1 to 10 microns in diameter

45

Acidic Ion Exchange Membrane - Energy Innovation Portal  

Technology Marketing Summary In this invention we report the synthesis of a copolymer of vinyl phosphonic acid (VPA) and vinyl zirconium phosphorous (VZP) acid has ...

46

Workshop on Ion Trap Technology  

Science Conference Proceedings (OSTI)

... optical components, conventional and microfabricated ion traps, and classical control ... will bring together experts on trapped-ion physics, laser optics ...

2011-03-01T23:59:59.000Z

47

Recovery of boric acid from ion exchangers  

DOE Patents (OSTI)

The recovery of boric acid from an anion exchange resin is improved by eluting the boric acid with an aqueous solution of ammonium bicarbonate. The boric acid can be readily purified and concentrated by distilling off the water and ammonium bicarbonate. This process is especially useful for the recovery of boric acid containing a high percentage of .sup.10 B which may be found in some nuclear reactor coolant solutions.

Pollock, Charles W. (Richland, WA)

1976-01-01T23:59:59.000Z

48

Catalysis using hydrous metal oxide ion exchangers  

DOE Patents (OSTI)

In a process which is catalyzed by a catalyst comprising an active metal on a carrier, said metal being active as a catalyst for the process, an improvement is provided wherein the catalyst is a hydrous, alkali metal or alkaline earth metal titanate, zirconate, niobate or tantalate wherein alkali or alkaline earth metal cations have been exchanged with a catalytically effective amount of cations of said metal.

Dosch, R.G.; Stephens, H.P.; Stohl, F.V.

1983-07-21T23:59:59.000Z

49

Catalysis using hydrous metal oxide ion exchanges  

DOE Patents (OSTI)

In a process which is catalyzed by a catalyst comprising an active metal on a carrier, said metal being active as a catalyst for the process, an improvement is provided wherein the catalyst is a hydrous, alkali metal or alkaline earth metal titanate, zirconate, niobate or tantalate wherein alkali or alkaline earth metal cations have been exchanged with a catalytically effective amount of cations of said metal.

Dosch, Robert G. (Albuquerque, NM); Stephens, Howard P. (Albuquerque, NM); Stohl, Frances V. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

50

Plasma ion temperature measurements via charge-exchange recombination radiation  

DOE Green Energy (OSTI)

Spatially and temporally resolved plasma ion temperatures can be determined by measuring the Doppler-broadened line profiles of transitions excited by charge-exchange recombination reactions between fast hydrogen atoms and fully ionized low-Z ions. Plasma rotation velocity profiles can also be obtained. A sample result from the PDX tokamak using He/sup +/ radiation is presented, and expected line intensities for model cases for PDX and TFTR are calculated.

Fonck, R.J.; Goldston, R.J.; Kaita, R.; Post, D.E.

1982-11-01T23:59:59.000Z

51

Modeling Uranium-Proton Ion Exchange in Biosorption  

E-Print Network (OSTI)

Modeling Uranium-Proton Ion Exchange in Biosorption J I N B A I Y A N G A N D B O H U M I L V O L E, Quebec, Canada H3A 2B2 Biosorption of uranium metal ions by a nonliving protonated Sargassum fluitans seaweed biomass was used to remove the heavy metal uranium from the aqueous solution. Uranium biosorption

Volesky, Bohumil

52

Plasma ion temperature measurements via charge exchange recombination radiation  

DOE Green Energy (OSTI)

Spatially and temporally resolved plasma ion temperatures can be determined by measuring the Doppler-broadened line profiles of transitions excited by charge-exchange recombination reactions between fast hydrogen atoms and fully ionized low-Z ions. Plasma rotation velocity profiles can also be obtained. A sample result from the PDX tokamak using He/sup +/ radiation is presented, and expected line intensities for model cases for PDX and TFTR are calculated.

Fonck, R.J.; Goldston, R.J.; Kaita, R.; Post, D.E.

1983-02-01T23:59:59.000Z

53

Thermal Analysis for Ion-Exchange Column System  

Science Conference Proceedings (OSTI)

Models have been developed to simulate the thermal characteristics of crystalline silicotitanate ion exchange media fully loaded with radioactive cesium either in a column configuration or distributed within a waste storage tank. This work was conducted to support the design and operation of a waste treatment process focused on treating dissolved, high-sodium salt waste solutions for the removal of specific radionuclides. The ion exchange column will be installed inside a high level waste storage tank at the Savannah River Site. After cesium loading, the ion exchange media may be transferred to the waste tank floor for interim storage. Models were used to predict temperature profiles in these areas of the system where the cesium-loaded media is expected to lead to localized regions of elevated temperature due to radiolytic decay. Normal operating conditions and accident scenarios (including loss of solution flow, inadvertent drainage, and loss of active cooling) were evaluated for the ion exchange column using bounding conditions to establish the design safety basis. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature. In-tank modeling results revealed that an idealized hemispherical mound shape leads to the highest tank floor temperatures. In contrast, even large volumes of CST distributed in a flat layer with a cylindrical shape do not result in significant floor heating.

Lee, S.

2012-12-20T23:59:59.000Z

54

Heat Exchanger Technologies for Distillation Columns  

E-Print Network (OSTI)

In this paper we look at the challenges that improvements in energy efficiency of distillation systems presents the heat exchanger designer. We examine each type of exchanger in turn. Heat exchanger size is minimized if the temperature driving force is maximized. The design should therefore seek to minimize the temperature changes during phase change. So, streams that are being condensed are kept as hot as possible. Streams that are being vaporized are kept as cool as possible. With one noted exception, this also leads to maximization of the thermodynamic efficiency and maximizes the scope for use of these streams in integrated systems.

Polley, G. T.

2002-04-01T23:59:59.000Z

55

Ion-Exchange Processes and Mechanisms in Glasses  

DOE Green Energy (OSTI)

Leaching of alkalis from glass is widely recognized as an important mechanism in the initial stages of glass-water interactions. Pioneering experimental studies [1-3] nearly thirty-five years ago established that alkali (designated as M{sup +}) are lost to solution more rapidly than network-forming cations. The overall chemical reaction describing the process can be written as: {triple_bond}Si-O-M + H{sup +} {yields} {triple_bond}Si-OH + M{sup +} (1) or {triple_bond}Si-O-M + H{sub 3}O{sup +} {yields} {triple_bond}Si-OH + M{sup +} + H{sub 2}O. (2) Doremus and coworkers [4-7] fashioned a quantitative model where M{sup +} ions in the glass are exchanged for counter-diffusing H{sub 3}O{sup +} or H{sup +}. Subsequent investigations [8], which have relied heavily on reaction layer analysis, recognized the role of H{sub 2}O molecules in the alkali-exchange process, without minimizing the importance of charged hydrogen species. Beginning in the 1980s, however, interest in M{sup +}-H{sup +} exchange reactions in silicate glasses diminished considerably because important experimental observations showed that network hydrolysis and dissolution rates were principally controlled by the chemical potential difference between the glass and solution (chemical affinity) [9]. For nuclear waste glasses, formation of alteration products or secondary phases that remove important elements from solution, particularly Si, was found to have very large impacts on glass dissolution rates [10,11]. Consequently, recent work on glass/water interactions has focused on understanding this process and incorporating it into models [12]. The ion-exchange process has been largely ignored because it has been thought to be a short duration, secondary or tertiary process that had little or no bearing on long-term corrosion or radionuclide release rates from glasses [13]. The only significant effect identified in the literature that is attributed to alkali ion exchange is an increase in solution pH in static laboratory tests conducted at high surface area-to-volume ratios [14,15]. Renewed interest in alkali ion exchange reactions has come about because of interest in development of durable Na-rich silicate glasses for immobilization of low-activity waste (LAW) at Hanford, Washington [16] and high-level wastes in China [17]. In reactive transport simulations of a LAW glass disposed in a shallow subsurface facility, Chen, McGrail, and Engel [18] showed that ion-exchange reactions increased the radionuclide release rate by over two orders of magnitude when compared with simulations where ion exchange was excluded. Sheng, Luo, and Tang [17] conducted static tests in a simulated groundwater and showed that alkali ion exchange was the dominant release mechanism over a large temperature range. Although the significance of alkali ion exchange reactions in long-term disposal system performance has now been recognized, the fundamental processes and mechanisms controlling the exchange reactions are still remarkably poorly understood, especially with regard to how glass structure affects alkali ion exchange kinetics. Experimental studies of Na release from various simple silicate glasses are numerous [19-23]. However, in all previous studies of which we are aware, no attempt was made to distinguish between M{sup +} release through alkali exchange versus matrix dissolution. The release rate of alkali in all of the early work was convoluted by contributions from matrix dissolution, which dominates in dilute solutions. Also, none of the previous studies attempted to define the relationship, if any, between glass structure (composition) and the kinetics of the ion exchange reaction. The motivation behind this Environmental Management Science Project (EMSP) is to develop a better understanding of how glass structure impacts sodium ion exchange so that improved glasses can be developed. Development of low ion-exchange rate glasses may also permit engineers to use higher loadings in nuclear waste glasses, which would result in substantial savings in production and disposal costs.

McGrail, B.P.; Icenhower, J.P.; Darab, J.G.; Shuh, D.k.; Baer, D.R.; Shutthanandan, V.; Thevuthasan, S.; Engelhard, M.H.; Steele, J.L.; Rodriguez, E.A.; Liu, P.; Ivanov, K.E.; Booth, C.H.; Nachimuthu, P.

2001-12-31T23:59:59.000Z

56

IMPACT OF THE SMALL COLUMN ION EXCHANGE PROCESS ON THE DEFENSE WASTE PROCESSING FACILITY - 12112  

SciTech Connect

The Savannah River Site (SRS) is investigating the deployment of a parallel technology to the Salt Waste Processing Facility (SWPF, presently under construction) to accelerate high activity salt waste processing. The proposed technology combines large waste tank strikes of monosodium titanate (MST) to sorb strontium and actinides with two ion exchange columns packed with crystalline silicotitanate (CST) resin to sorb cesium. The new process was designated Small Column Ion Exchange (SCIX), since the ion exchange columns were sized to fit within a waste storage tank riser. Loaded resins are to be combined with high activity sludge waste and fed to the Defense Waste Processing Facility (DWPF) for incorporation into the current glass waste form. Decontaminated salt solution produced by SCIX will be fed to the SRS Saltstone Facility for on-site immobilization as a grout waste form. Determining the potential impact of SCIX resins on DWPF processing was the basis for this study. Accelerated salt waste treatment is projected to produce a significant savings in the overall life cycle cost of waste treatment at SRS.

Koopman, D.; Lambert, D.; Fox, K.; Stone, M.

2011-11-07T23:59:59.000Z

57

Cesium Ion Exchange Program at the Hanford River Protection Project Waste Treatment Plant  

SciTech Connect

The Hanford Waste Treatment and Immobilization Plant (WTP) will use cesium ion exchange to remove Cs-137 from Low Activity Waste (LAW) down to a maximum activity of 0.3 Ci/m3 in the Immobilized LAW (ILAW) product. The WTP Project baseline for cesium ion exchange is the elutable SuperLig(R) 644 (SL-644) resin (registered trademark of IBC Advanced Technologies, Inc., American Fork, UT) or a U. S. Department of Energy (DOE) approved equivalent. SL-644 is solely available through IBC Advanced Technologies. The WTP Project is conducting a three-stage process for selecting and qualifying an alternative ion exchange resin. Resorcinol formaldehyde (RF) is being pursued as a potential alternative to SL-644, to provide a backup resin supply. Resin cost relative to SL-644 is a primary driver. Phase I of the testing plan examined the viability of RF resin and recommended that a spherical form of RF resin be examined further. Phases II and III, now underway, include batch testing to determine the isotherm of this resin, kinetics to address the impacts of bead diameter and high sodium feed levels on processing Hanford waste with the resin, and multicycle column testing to determine how temperature and chemical cycling affects waste processing. Phases II and III also examine resin performance against simulated WTP feeds, radiolytic and thermal stability, and scale-up to pilot scale performance. We will discuss early results obtained from Phase II testing here.

CHARLES, NASH

2005-02-27T23:59:59.000Z

58

Design, optimization, and selectivity of inorganic ion-exchangers for radioactive waste remediation  

E-Print Network (OSTI)

The processes of development of nuclear weapons resulted in accumulation of thousands of curies of high-level radioactive waste. Liquid waste produced in the US has been stored in carbon steel tanks in highly alkaline (1-3 M NaOH, 6 M sodium salts) media for fifty years and leakage has occurred. One of the approaches to the solution of the problem of radioactive waste is to adsorb the nuclides on highly selective ion-exchange material, solidify in a glass matrix and dispose in a geological formation. The use of the ion-exchange technology is limited by the time of the sorbent-solution contact required to reduce the activity of the streams to acceptable levels. Inorganic ion-exchangers are promising materials due to their high radiation stability, extreme selectivity, and compatibility with the glass matrix. The contact time can be reduced by improving selectivities, kinetics, and capacities of the materials towards the target ions. This can be accomplished in part through understanding of the origin of ion-exchange selectivity. Crystalline zeotypes with minerals sitinakite (ideal formula Na2Ti2O3SiO4??2H2O) and pharmacosiderite (HM3(TO)4(GeO4)x(SiO4)3-x M = Cs+, Na+, K+, T=Nb5+, Ge4+, Ti4+) structures are excellent candidates for selectivity studies because of their ion-exchange properties tunable by alterations of synthetic procedures, and isomorphous framework substitution. The Nb-substitution in titanium sites reduces the framework charge, whereas Ge substitution decreases the unit cell size if in titanium sites and increases if it in silicon sites. The compounds were hydrothermally synthesized in Ti/Si, Ti/Nb/Si, Ti/Ge/Si forms and characterized by structural and ion-exchange studies. The 25% Nb substitution in titanosilicate sitinakite resulted in enhanced selectivity for cesium and additional bond formation of cesium within the channel. The selectivity for cesium in germanium substituted pharmacosiderite also was correlated with the coordination environment within the channel. In the advanced stages of this study semi-crystalline (sodium nonatitanate) and amorphous (monosodium titanate) materials also were considered because of their remarkable strontium selectivity. In situ X-ray diffraction techniques revealed that the sodium nonatitanate precedes the formation of the TS phase in hydrothermal synthesis. This knowledge allowed us to design and synthesize material for combined cesium and strontium removal.

Medvedev, Dmitry Gennadievich

2004-08-01T23:59:59.000Z

59

Charge exchange spectroscopy as a fast ion diagnostic on TEXTOR  

SciTech Connect

An upgraded charge exchange spectroscopy diagnostic has been taken into operation at the TEXTOR tokamak. The angles of the viewing lines with the toroidal magnetic field are close to the pitch angles at birth of fast ions injected by one of the neutral beam injectors. Using another neutral beam for active spectroscopy, injected counter the direction in which fast ions injected by the first beam are circulating, we can simultaneously measure a fast ion tail on the blue wing of the D{sub {alpha}} spectrum while the beam emission spectrum is Doppler shifted to the red wing. An analysis combining the two parts of the spectrum offers possibilities to improve the accuracy of the absolute (fast) ion density profiles. Fast beam modulation or passive viewing lines cannot be used for background subtraction on this diagnostic setup and therefore the background has to be modeled and fitted to the data together with a spectral model for the slowing down feature. The analysis of the fast ion D{sub {alpha}} spectrum obtained with the new diagnostic is discussed.

Delabie, E.; Jaspers, R. J. E.; Hellermann, M. G. von [FOM-Rijnhuizen, EURATOM-FOM, NL-3430 BE Nieuwegein (Netherlands); Nielsen, S. K. [Association EURATOM-Risoe National Laboratory for Sustainable Energy, Technical University of Denmark, DK-4000 Roskilde (Denmark); Marchuk, O. [Forschungszentrum Juelich, EURATOM-FZJ, D-52424 Juelich (Germany)

2008-10-15T23:59:59.000Z

60

HEAT TRANSFER ANALYSIS FOR ION-EXCHANGE COLUMN SYSTEM  

SciTech Connect

Models have been developed to simulate the thermal characteristics of Crystalline Silicotitanate (CST) ion exchange media fully loaded with radioactive cesium in a column configuration and distributed within a waste storage tank. This work was conducted to support the Small Column Ion Exchange (SCIX) program which is focused on processing dissolved, high-sodium salt waste for the removal of specific radionuclides (including Cs-137, Sr-90, and actinides) within a High Level Waste (HLW) storage tank at the Savannah River Site. The SCIX design includes CST columns inserted and supported in the tank top risers for cesium removal. Temperature distributions and maximum temperatures across the column were calculated with a focus on process upset conditions. A two-dimensional computational modeling approach for the in-column ion-exchange domain was taken to include conservative, bounding estimates for key parameters such that the results would provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on CST. The current full-scale design for the CST column includes one central cooling pipe and four outer cooling tubes. Most calculations assumed that the fluid within the column was stagnant (i.e. no buoyancy-induced flow) for a conservative estimate. A primary objective of these calculations was to estimate temperature distributions across packed CST beds immersed in waste supernate or filled with dry air under various accident scenarios. Accident scenarios evaluated included loss of salt solution flow through the bed, inadvertent column drainage, and loss of active cooling in the column. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature.

Lee, S.; King, W.

2011-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Ion Exchange Testing with SRF Resin FY2012  

Science Conference Proceedings (OSTI)

Ion exchange using spherical resorcinol-formaldehyde (SRF) resin has been selected by the U.S. Department of Energy’s Office of River Protection (DOE-ORP) for use in the Pretreatment Facility (PTF) of the Hanford Tank Waste Treatment and Immobilization Plant (WTP) and for potential application in at-tank deployment. Numerous studies have shown SRF resin to be effective for removing 137Cs from a wide variety of actual and simulated tank waste supernatants (Adamson et al. 2006; Blanchard et al. 2008; Burgeson et al. 2004; Duignan and Nash 2009; Fiskum et al. 2006a; Fiskum et al. 2006b; Fiskum et al. 2006c; Fiskum et al. 2007; Hassan and Adu-Wusu 2003; King et al. 2004; Nash et al. 2006). Prior work at the Pacific Northwest National Laboratory (PNNL) has focused primarily on the loading behavior for 4 to 6 M Na solutions at 25 to 45°C. Recent proposed changes to the WTP ion exchange process baseline indicate that loading may include a broader range of sodium molarities (0.1 to 8 M) and higher temperatures (50°C) to alleviate post-filtration precipitation issues. This report discusses ion exchange loading kinetics testing activities performed in accordance with Test Plan TP-WTPSP-002, Rev. 3.0 , which was prepared and approved in response to the Test Specification 24590 PTF-TSP-RT-09-002, Rev. 0 (Lehrman 2010) and Test Exception 24590 PTF TEF RT-11-00003, Rev. 0 (Meehan 2011). This testing focused on column tests evaluating the impact of elevated temperature on resin degradation over an extended period of time and batch contacts evaluating the impact on Cs loading over a broad range of sodium concentrations (0.1 to 5 M). These changes may be required to alleviate post-filtration precipitation issues and broaden the data range of SRF resin loading under the conditions expected with the new equipment and process changes.

Russell, Renee L.; Rinehart, Donald E.; Peterson, Reid A.

2013-06-11T23:59:59.000Z

62

Comparison of inorganic ion exchange materials for removing cesium, strontium, and transuranic elements from K-basin water  

SciTech Connect

The work presented in this report was conducted by the Pacific Northwest National Laboratory (PNNL) under the Efficient Separations and Crosscutting Program (ESP), Office of Science and Technology, U.S. Department of Energy (DOE). The objective of this work was to investigate radionuclide uptake by several newly produced ion exchange materials under actual waste conditions, and to compare the performance of those materials with that of commercially available ion exchangers. The equilibrium uptake data presented in this report are useful for identifying potential materials that are capable of removing cesium and strontium from 105-KE Basin water. The data show the relative selectivities of the ion exchange materials under similar operating conditions. Additional flow studies are needed to predict material capacities and to develop complete ion exchange process flow sheets. The materials investigated in this study include commercially available ion exchangers such as IONSIV{reg_sign} IE-911 (manufactured by UOP), clinoptilolite (a naturally occurring zeolite), and materials produced on an experimental basis by AlliedSignal (biotites and nonatitanates), 3M (hexacyanoferrates), Selion Technologies, Inc. (hexacyanoferrates and titanates), and Texas A&M University (pharmacosiderites, biotites, and nonatitanates). In all, the performance of 14 ion exchange materials was evaluated at two solution-to-exchanger mass ratios (i.e., 10{sup 4} and 10{sup 5}) using actual 105-KE Basin water. Evaluation consisted of determining cesium and strontium batch distribution coefficients, loading, and decontamination factors. Actual 105-KE Basin water was obtained from a sample collected during the sludge dissolution work conducted by PNNL in FY 1996. This sample was taken from the bottom of the basin and contained significantly higher concentrations of the radioactive constituents than do samples taken from the top of the basin.

Brown, G.N.; Bontha, J.R.; Carson, K.J.; Elovich, R.J.; DesChane, J.R.

1997-10-01T23:59:59.000Z

63

ION EXCHANGE SUBSTANCES BY SAPONIFICATION OF ALLYL PHOSPHATE POLYMERS  

DOE Patents (OSTI)

An ion exchange resin having a relatively high adsorption capacity tor uranyl ion as compared with many common cations is reported. The resin comprises an alphyl-allyl hydrogen phosphate polymer, the alphyl group being either allyl or a lower alkyl group having up to 5 carbon atoins. The resin is prepared by polymerizing compounds such as alkyl-diallyl phosphate and triallyl phosphate in the presence of a free radical generating substance and then partially hydrolyzing the resulting polymer to cause partial replacement of organic radicals by cations. A preferred free radical gencrating agent is dibenzoyl peroxide. The partial hydrolysis is brought about by refluxing the polymer with concentrated aqueous NaOH for three or four hours.

Kennedy, J.

1959-04-14T23:59:59.000Z

64

Process for loading weak-acid ion exchange resin with uranium  

DOE Patents (OSTI)

A method for loading ion exchange resins is described. The process comprises contacting a weak acid cation exchange resin in the ammonium form with a uranyl fluoride salt solution.

Notz, Karl J. (Oak Ridge, TN)

1976-01-01T23:59:59.000Z

65

Storage and Aging Effects on Spherical Resorcinol-Formaldehyde Resin Ion Exchange Performance  

SciTech Connect

Bechtel National, Inc. (BNI) is evaluating the alternate Cs ion exchanger, spherical resorcinol-formaldehyde (RF), for use in the River Protection Project-Waste Treatment Plant (RPP-WTP).( ) Previous test activities with spherical RF indicate that it has adequate capacity, selectivity, and kinetics to perform in the plant according to the flowsheet needs. It appears to have better elution and hydraulic properties than the existing alternatives: ground-gel RF and SuperLig® 644 (SL 644).( ) To date, the spherical RF performance testing has been conducted on freshly manufactured resin (within ~2 months of manufacture). The ion exchange resins will be manufactured and shipped to the WTP up to 1 year before being used in the plant. Changes in the resin properties during storage could reduce the capacity of the resin to remove Cs from low-activity waste solutions. Active sites on organic SL-644 resin have been shown to degrade during storage (Arm et al. 2004). Additional testing was needed to study the effects of storage conditions and aging on spherical RF ion exchange performance. Variables that could have a significant impact on ion exchange resins during storage include storage temperature, medium, and time. Battelle—Pacific Northwest Division (PNWD) was contracted to test the effects of various storage conditions on spherical RF resin. Data obtained from the testing will be used by the WTP operations to provide direction for suitable storage conditions and manage the spherical RF resin stock. Storage test conditions included wet and dry resin configurations under nitrogen at three temperatures. Work was initially conducted under contract number 24590-101-TSA-W000-00004 satisfying the needs defined in Appendix C of the Research and Technology Plan( ) TSS A-219 to evaluate the impact of storage conditions on RF resin performance. In February 2007, the contract mechanism was switched to Pacific Northwest National Laboratory (PNNL) Operating Contract DE-AC05-76RL01830.

Fiskum, Sandra K.; Arm, Stuart T.; Edwards, Matthew K.; Steele, Marilyn J.; Thomas, Kathie K.

2007-09-10T23:59:59.000Z

66

Data quality objectives for Ion Exchange Module (IXM) disposition  

DOE Green Energy (OSTI)

This Data Quality Objective (DQO) document presents the data needs and accuracy requirements for sampling ion exchange modules at the K Basins, 100 K Area, to determine if there is a hydrogen gas buildup within the modules. This document was produced by PNL, with the assistance of Neptune and Associates, and was partly funded (for facilitator) by DOE-HQ as a demonstration DQO for EM activities. PNL involved a number of PNL, WHC and support contract staff (including external technical consultants) in meetings to define the data needed, along with the necessary accuracy, to resolve issues associated with hydrogen accumulation in Ion Exchange Modules (IXMS) that were generated prior to July 1994 and only have one nuc-fil vent. IXMs generated after July 1994 have multiple nuc-fil vents and do not require sampling. PNL transmitted this DQO to WHC on January 31, 1995. This Supporting Document is to assure that the document is captured into the document retrieval system. WHC review focused on the acceptability of the technical conclusions such that the data collected will meet minimum operational, safety and environmental needs.

Choi, I. [Pacific Northwest Lab., Richland, WA (United States)

1995-01-31T23:59:59.000Z

67

Development of Ion Transport Membrane (ITM) Oxygen Technology...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ion Transport Membrane (ITM) Oxygen Technology for Integration in IGCC and Other Advanced Power Generation Systems Background The Gasification Technologies Program at the National...

68

Ion Funnel and Related Technology for Improved Sensitivity ...  

Search PNNL. PNNL Home; About; Research; Publications; Jobs; News; Contacts; Ion Funnel and Related Technology for Improved Sensitivity in Mass ...

69

Recent advances in lithium ion technology  

Science Conference Proceedings (OSTI)

Lithium ion technology is based on the use of lithium intercalating electrodes. Carbon is the most commonly used anode material, while the cathode materials of choice have been layered lithium metal chalcogenides (LiMX{sub 2}) and lithium spinel-type compounds. Electrolytes may be either organic liquids or polymers. Although the first practical use of graphite intercalation compounds as battery anodes was reported in 1981 for molten salt cells (1) and in 1983 for ambient temperature systems (2) it was not until Sony Energytech announced a new lithium ion rechargeable cell containing a lithium ion intercalating carbon anode in 1990, that interest peaked. The reason for this heightened interest is that these cells have the high energy density, high voltage and fight weight of metallic lithium systems plus a very long cycle life, but without the disadvantages of dendrite formation on charge and the safety considerations associated with metallic lithium.

Levy, S.C.

1995-01-01T23:59:59.000Z

70

Plasma ion sources and ion beam technology in microfabrications  

E-Print Network (OSTI)

5 Ion source for metallic ion beam generation and thin filmnew plasma source for metallic ion beam generation and metal5: Ion source for metallic ion beam generation and thin film

Ji, Lili

2007-01-01T23:59:59.000Z

71

Review of lithium-ion technology  

DOE Green Energy (OSTI)

The first practical use of graphite intercalation compounds (GIC) as battery anodes was reported in a 1981 patent by Basu in which a molten salt cell was described having a negative electrode that consisted of lithium intercalated in graphite. A second patent by Basu, issued in 1983, described an ambient temperature rechargeable system which also utilized lithium intercalated in graphite as the anode. Work in this area progressed at a low level, however, until interest was sparked in 1990 when Sony Corporation announced a new ``lithium-ion`` rechargeable cell containing a lithium ion intercalating carbon anode. These cells have the advantages of metallic lithium systems; i.e., high energy density, high voltage, and light weight, without the disadvantages of dendrite formation on charge and the safety considerations associated with metallic lithium. Materials other than carbon have been studied as intercalation anodes. Examples are Fe{sub 2}O{sub 3}, WO{sub 2} and TiS{sub 2}. Although these alternate anode materials are of interest academically and for specialty applications, they do not hold much promise for widespread general use due to their increased weight and lower cell voltage. Studies of cathode materials for lithium-ion systems have centered on the transition metal chalcogenides. A number of these materials are capable of reversibly intercalating lithium ions at a useful potential versus lithium. Both organic liquids and polymers are candidate electrolytes for this technology.

Levy, S.C.; Cieslak, W.R.

1993-12-31T23:59:59.000Z

72

Pressurized fluidized-bed combustion technology exchange workshop  

SciTech Connect

The pressurized fluidized-bed combustion technology exchange workshop was held June 5 and 6, 1979, at The Meadowlands Hilton Hotel, Secaucus, New Jersey. Eleven papers have been entered individually into EDB and ERA. The papers include reviews of the US DOE and EPRI programs in this area and papers by Swedish, West German, British and American organizations. The British papers concern the joint program of the USA, UK and FRG at Leatherhead. The key factor in several papers is the use of fluidized bed combustors, gas turbines, and steam turbines in combined-cycle power plants. One paper examines several combined-cycle alternatives. (LTN)

,

1980-04-01T23:59:59.000Z

73

Salt Processing Through Ion Exchange at the Savannah River Site Selection of Exchange Media and Column Configuration - 9198  

SciTech Connect

The Department of Energy (DOE) has developed, modeled, and tested several different ion exchange media and column designs for cesium removal. One elutable resin and one non-elutable resin were considered for this salt processing application. Deployment of non-elutable Crystalline Silicotitanate and elutable Resorcinol Formaldehyde in several different column configurations were assessed in a formal Systems Engineering Evaluation (SEE). Salt solutions were selected that would allow a grouping of non-compliant tanks to be closed. Tests were run with the elutable resin to determine compatibility with the resin configuration required for an in-tank ion exchange system. Models were run to estimate the ion exchange cycles required with the two resins in several column configurations. Material balance calculations were performed to estimate the impact on the High Level Waste (HLW) system at the Savannah River Site (SRS). Conceptual process diagrams were used to support the hazard analysis. Data from the hazard analysis was used to determine the relative impact on safety. This report will discuss the technical inputs, SEE methods, results and path forward to complete the technical maturation of ion exchange.

Spires, Renee; Punch, Timothy; McCabe, Daniel

2009-02-11T23:59:59.000Z

74

State of technology of direct contact heat exchanging  

DOE Green Energy (OSTI)

Specific objectives of this study were to assess the state of technology development and to identify and evaluate the constraints to wider use of direct contact heat exchanger (DCHE) technology in the U.S. The scope of this study is relatively broad; it includes many types of generic systems and end-use applications, both current and future. Domestic and foreign experience with DCHE technology are compared, although the primary focus is on domestic experience. Twenty-two distinct applications of DCHE technology were identified in this study and are examined in this report. The general format is to describe each system, explore its potential applications, discuss current and past research activities and identify major implementation barriers. Finally, as a result of discussions with principal users of DCHE systems and with other knowledgeable sources, generic and specific R and D needs to overcome specific implementation barriers have been identified. The following list of DCHE systems/concepts has been classified into four major end-uses; there is also a category for specialized (other) applications.

Vallario, R.W.; DeBellis, D.E.

1984-05-01T23:59:59.000Z

75

Ion-exchange material and method of storing radioactive wastes  

DOE Patents (OSTI)

A new cation exchanger is a modified tobermorite containing aluminum isomorphously substituted for silicon and containing sodium or potassium. The exchanger is selective for lead, rubidium, cobalt, and cadmium and is selective for cesium over calcium or sodium. The tobermorites are compatible with cement and are useful for the long-term fixation and storage of radioactive nuclear wastes.

Komarneni, S.; Roy, D.M.

1983-10-31T23:59:59.000Z

76

CHARACTERIZATION OF CYCLED SPHERICAL RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN  

Science Conference Proceedings (OSTI)

This report presents characterization data for two spherical resorcinol-formaldehyde (sRF) resin beds that had processed cesium in non-radioactive and radioactive cycles. All column cycle operations for the resin beds including loading, displacements, elution, regeneration, breakthroughs, and solution analyses are reported in Nash and Duignan, 2009a. That report covered four ion exchange (IX) campaigns using the two {approx}11 mL beds in columns in a lead-lag arrangement. The first two campaigns used Savannah River Site (SRS) Tank 2F nonradioactive simulant while the latter two were fed with actual dissolved salt in the Savannah River National Laboratory (SRNL) Shielded Cells. Both radioactive cycles ran to cesium breakthrough of the lead column. The resin beds saw in excess of 400 bed volumes of feed in each cycle. Resin disposal plans in tank farm processing depend on characterizations of resin used with actual tank feed. Following a final 30 bed volume (BV) elution with nitric acid, the resin beds were found to contain detectable chromium, barium, boron, aluminum, iron, sodium, sulfur, plutonium, cesium, and mercury. Resin affinity for plutonium is important in criticality safety considerations. Cesium-137 was found to be less than 10E+7 dpm/g of resin, similar to past work with sRF resin. Sulfur levels are reasonably consistent with other work and are expected to represent sulfur chemistry used in the resin manufacture. There were low but detectable levels of technetium, americium, and curium. Toxicity Characteristic Leaching Procedure (TCLP) work on the used (eluted) resin samples showed significant contents of mercury, barium, and chromium. One resin sample exceeded the TCLP level for mercury while the other metals were below TCLP levels. TCLP organics measurements indicated measurable benzene in one case, though the source was unknown. Results of this work were compared with other work on similar sRF resin characterizations in this report. This is the first work to quantify mercury on sRF resin. Resin mercury content is important in plans for the disposition of used sRF resin. Mercury speciation in high level waste (HLW) is unknown. It may be partly organic, one example being methyl mercury cation. Further study of the resin's affinity for mercury is recommended.

Nash, C.; Duignan, M.

2010-02-23T23:59:59.000Z

77

ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE  

SciTech Connect

SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

Herman, D.

2011-08-03T23:59:59.000Z

78

Decontamination of water using nitrate selective ion exchange resin  

DOE Patents (OSTI)

A method for nitrate decontamination of water which involves passing the water through a bed of alkyl phosphonium anion exchange resin which has pendant alkyl groups of C[sub 3] or larger.

Lockridge, J.E.; Fritz, J.S.

1990-07-31T23:59:59.000Z

79

Decontamination of water using nitrate selective ion exchange resin  

DOE Patents (OSTI)

A method for nitrate decontamination of water which involves passing the water through a bed of alkyl phosphonium anion exchange resin which has pendant alkyl groups of C.sub.3 or larger.

Lockridge, James E. (Ames, IA); Fritz, James S. (Ames, IA)

1990-07-31T23:59:59.000Z

80

Improvement in both giant magnetoresistance and exchange bias through hydrogen ion irradiation at low energy  

SciTech Connect

Irradiation of IrMn-based spin valves with 550 eV hydrogen ions increased their giant magnetoresistance and exchange bias by 20% and 60%, respectively. This significant enhancement stems from the strong (111) texture and small mosaic spread of the IrMn antiferromagnet that resulted from the microstructural reconstruction caused by the energy transfer during the bombardment by hydrogen ions, as well as by the narrow dispersion in the exchange bias. Irradiation with the hydrogen ion at low energy can improve the properties of spin valves without resulting in undue degradation in the performance or the microstructure.

Shim, Jaechul; Han, Yoonsung; Lee, Jinwon; Hong, Jongill [Materials Science and Engineering, Yonsei University, Seoul 120-749 (Korea, Republic of)

2008-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Use of ion exchange for the treatment of liquids in nuclear power plants  

SciTech Connect

The current and future use of ion exchange (demineralization) as a method for treating liquid radioactive streams at nuclear power plants was investigated. Pertinent data were obtained by contacting utility companies, nuclear-steam-supply system vendors, selected AEC-operated facilities, as well as ion exchange resin and equipment manufacturers. Principal emphasis was on obtaining data concerning the decontamination of aqueous solutions characterized by levels of radioactivity that range from 10/sup -7/ to 1 mu Ci/ml. Ion exchange media commonly used in nuclear power plants are synthetic organic resins of polystyrene matrix. They are utilized primarily in the mixed-bed (deep-bed) ion exchange system. Powdered resin (mixed) systems (so-called filter- demineralizer'') are also used in several recent boiling-water-reactor plants. The term decontamination factor (DF), the ratio of the feed to effluent concentration, is widely used and is assumed by designers and operators of the plants to express the ion exchange system performance. In some cases, such DF values may not represent the true system performance. To achieve a desired DF, the feed and effiuent must be sampled for the nuclides of interest and the processing discontinued when the desired effluent concentration is exceeded. Average DF values that can be obtained for various ion-exchange systems and various groups of radionuclides if good engineering practice is used in the design and operation of these systems are listed. These values are based on ion- exchange fundamentals, literature data, laboratory experiments, and plant operating experience. They represent time-average values expected under normal operating conditions rather than maximum values attainable under optimum conditions. (auth)

Lin, K.H.

1973-12-01T23:59:59.000Z

82

Plasma ion sources and ion beam technology in microfabrications  

E-Print Network (OSTI)

and focused ion beam milling cathodic Nanotechnology” 16 (of FIB imaging, milling and deposition………………….45 1.2.3.2. Milling………………………………………………………………..5 1.2.3.3.

Ji, Lili

2007-01-01T23:59:59.000Z

83

Physics research and technology developments of electron string ion sources  

Science Conference Proceedings (OSTI)

The most recent experimental information on electron string phenomenon, such as two step transition to electron string state, stability of e-strings in condition of electron energy recuperation, are described. The new technology developments of electron string ion sources (ESIS) include pulse injection of gaseous species in e-string and its efficient conversion to ion beams, slow ion extraction, ion-ion cooling of heavy ions with CH{sub 4} coolant, and a progress in the construction of the new Joint Institute for Nuclear Research ESIS with 6 T solenoid are briefly considered.

Donets, D. E.; Donets, E. E.; Ramzdorf, A. Yu.; Salnikov, V. V.; Shutov, V. B.; Donets, E. D. [Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation); Honma, T.; Noda, K. [National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba, 263-8555 (Japan)

2012-02-15T23:59:59.000Z

84

Welding and Repair Technology Center: Repair Technology for Degraded Pressure Vessel and Heat Exchanger Shells  

Science Conference Proceedings (OSTI)

BackgroundPressure vessels and heat exchangers are subject to a number of degradation mechanisms that can cause thinning of component walls and deterioration of internal components. With many repair options available, the Electric Power Research Institute (EPRI) Welding and Repair Technology Center (WRTC) has developed this report to assist operations and engineering personnel who are faced with defective or failed vessel components. Many available repair options allow ...

2013-10-30T23:59:59.000Z

85

Technology Assessment of Li-Ion Energy Storage Technology for Stationary Electric Utility Applications  

Science Conference Proceedings (OSTI)

Emerging Lithium-ion (Li-ion) energy storage technology, which is being developed and applied in the transportation sector, could have a profound impact in the electric sector by serving applications for distributed energy storage (DES). An earlier EPRI Report, Technology Review and Assessment of Distributed Energy Resources: Distributed Energy Storage (1012983, February 2006), identified Li-ion batteries as a potential disruptive technology for the electric power sector. EPRI undertook this project to a...

2008-03-13T23:59:59.000Z

86

Program on Technology Innovation: Technology Assessment Presentation on Li-Ion Energy Storage Technology for Stationary Electric Uti lity Applications  

Science Conference Proceedings (OSTI)

Emerging Li-ion (Li-ion) energy storage technology, which is being developed and applied in the transportation sector, could have a profound impact to in the electric sector by serving applications for distributed energy storage (DES). An earlier EPRI Report, Technology Review and Assessment of Distributed Energy ResourcesDistributed Energy Storage (1012983), identified Li-ion batteries as a potential disruptive technology for the electric power sector. This project was undertaken to assess the potential...

2008-05-20T23:59:59.000Z

87

Ion Exchange Filter Transition Plan for BWRs and PWRs  

Science Conference Proceedings (OSTI)

This report includes an interim review of plant experiences with various cation exchange membranes to determine if new filters are comparable and suitable for nuclear power plant chemistry applications. Gaps in performance and impacts to recommendations in EPRI reports BWRVIP-190: BWR Vessel and Internals Project, BWR Water Chemistry Guidelines - 2008 Revision (1016579), Pressurized Water Reactor Primary Water Chemistry Guidelines (1014986) and Pressurized Water Reactor Secondary ...

2013-03-28T23:59:59.000Z

88

Lithium Ion Technology Status and Directions: 2013 Update  

Science Conference Proceedings (OSTI)

This report describes the state of the art in lithium ion battery technology with respect to the electric transportation and utility energy storage fields. Although lithium ion batteries have become widely accepted as the dominant energy storage technology to be used in electric vehicles, at least for the next decade, their improvement in terms of performance and cost will be an important factor in the adoption of electric vehicles.This report provides a brief review of the technical and ...

2013-12-27T23:59:59.000Z

89

Available Technologies: Cation-Exchanged Variants of Zeolite LTA ...  

Berkeley Lab scientists Tae-Hyun Bae and Jeffrey Long have found that cation-exchanged zeolites are outstanding materials for post-combustion carbon dioxide (CO2 ...

90

Staff exchange with Spokane Intercollegiate Research and Technology Institute (SIRTI), final project report  

SciTech Connect

Staff exchanges, such as the one described in this report, are intended to facilitate communication and collaboration among scientists and engineers at Department of Energy (DOE) laboratories, in U.S. industry, and academia. Funding support for these exchanges is provided by the DOE, Office of Energy Research, Laboratory Technology Transfer Program. Funding levels for each exchange typically range from $20,000 to $40,000. The exchanges offer the opportunity for the laboratories to transfer technology and expertise to industry, gain a perspective on industry`s problems, and develop the basis for further cooperative efforts through Cooperative Research and Development Agreements (CRADAS) or other mechanisms.

Alexander, G.M.

1994-12-01T23:59:59.000Z

91

Sulphide Precipitation and Ion Exchange Technologies for Cost ...  

Science Conference Proceedings (OSTI)

... eliminates residual waste sludge, improves water conservation, generates revenues from wastewater, and delivers overall improvements to the environment .

92

Advances in lithium-ion battery research and technology.  

Science Conference Proceedings (OSTI)

The lithium-ion battery market has undergone trememdous growth ever since Sony Corporation introduced the first commercial cell in 1990. In less than a decade, the field has become a front-runner in rechargeable battery technology. Sales of lithium-ion cells exceeded 400 million units in 1999, and the market is expected to exceed 1.1 billion units valued at more than $4 billion by 2005.

Abraham, D. P.; Chemical Engineering

2002-03-01T23:59:59.000Z

93

Ion exchange behavior among metal trisilicates: probing selectivity, structures, and mechanism  

E-Print Network (OSTI)

One model system for the investigation of selectivity in inorganic ion exchangers is a group of synthetic analogues of the mineral umbite. Hydrothermally synthesized trisilicates with the general form A2BSi3O9.H2O, where A is a monovalent cation, and B = Ti4+, Zr4+, and Sn4+ have been shown to have ion exchange properties. The extended three dimensional framework structure offers the ability to tune the selectivity based on the size of the cavities and channels. The unit cell volume, and therefore the pore size, can be altered by changing the size of the octahedral metal. The substitution of Ge for Si can also increase the pore size. A variety of cations have been exchanged into the trisilicates including alkali and alkaline earths, lanthanides, and actinides. The reason for the selectivity rests in the pocket of framework oxygens which make up the exchange sites. Close examination of the cation environments shows that the ions with the greatest affinity are those that have the closest contacts to the framework oxygens. For example, among alkali cations, zirconium trisilicate demonstrates the greatest affinity for Rb+ and has the most A-O contact distances approaching the sum of their ionic radii. The origins of selectivity also rely upon the valence of the incoming cation. When cations are of similar ionic radius, a cation of higher charge is always preferred over the lower valence. Ion exchange studies in binary solutions of cations of different valence, but similar size (1.0Å ) have proven the selectivity series to be Th4+ > Gd3+ > Ca2+ > Na+. Through structural characterization, kinetic studies, and use of in situ x-ray diffraction techniques the origins of selectivity in these inorganic ion exchangers has been further elucidated. The principles gleaned from these studies can be applied to other inorganic framework materials. The umbite system has the potential to be altered and tailored for specific separation needs. The trisilicate materials presented in this work are representative of the types of advances in inorganic materials research and prove their potential as applicable compounds useful for solving real world problems.

Fewox, Christopher Sean

2008-08-01T23:59:59.000Z

94

Ion exchange separation and mass spectrometric analysis of uranium for solutions containing plutonium  

SciTech Connect

An ion exchange technique separates plutonium from uranium using Dowex-1 resin and a methanol--HCl plutonium elutriant. The method is applicable to both trace uranium determination and uranium isotopic distribution analysis by mass spectrometry. Distribution coefficients for plutonium, and elution curves for uranium and plutonium are shown. For uranium analysis the percent relative standard deviation is 0.8 at 120-2400 micrograms uranium per gram plutonium and 5.0 at 5 micrograms uranium per gram plutonium. (auth)

McBride, K.C.

1975-06-01T23:59:59.000Z

95

Membrane permeation process for dehydration of organic liquid mixtures using sulfonated ion-exchange polyalkene membranes  

DOE Patents (OSTI)

A membrane permeation process for dehydrating a mixture of organic liquids, such as alcohols or close boiling, heat sensitive mixtures. The process comprises causing a component of the mixture to selectively sorb into one side of sulfonated ion-exchange polyalkene (e.g., polyethylene) membranes and selectively diffuse or flow therethrough, and then desorbing the component into a gas or liquid phase on the other side of the membranes.

Cabasso, Israel (131 Buckingham Ave., Syracuse, NY 13210); Korngold, Emmanuel (P.O. Box 1025, Beer-Sheva 84110, IL)

1988-01-01T23:59:59.000Z

96

Impact of Film-Forming Amines on Condensate Polishing Ion-Exchange Resins  

Science Conference Proceedings (OSTI)

 A proprietary film-forming amine, also referred to as a filming amine, was tested in laboratory experimentation to evaluate potential impacts on condensate polisher ion-exchange resins—(Dowex MS 650C (H) and 550A (OH)—and a commercially available resin used for the measurement of online cation conductivity. The properties of filming amines to coat surfaces within the steam cycle of a power plant can also block ionic mass transport or have chemical interactions with ...

2013-04-30T23:59:59.000Z

97

Cesium Removal from High Conductivity Waste Using Selective Ion Exchange Media  

Science Conference Proceedings (OSTI)

This report summarizes a low level liquid processing study conducted for Diablo Canyon Power Plant (DCPP). The researchers used column testing to evaluate the performance of selective ion exchange media in the removal of radioactive cesium contamination from spent condensate polisher regenerant solution. The report provides technical details and results of the study and discusses applicability of these materials to the waste processing system at the plant.

1997-12-15T23:59:59.000Z

98

An exploratory program for using hydrous metal oxide ion exchangers as Fischer-Tropsch catalysts  

SciTech Connect

The purpose of this program is to investigate the potential of hydrous metal oxide (HMO) ion exchangers, invented at Sandia National Laboratories, as Fischer-Tropsch (F-T) catalysts. Metals known to be active in F-T synthesis (e.g. Fe, Co) were ion exchanged on hydrous metal oxide supports. Although HMO catalysts based on Zr, Nb, and Ta have been investigated in direct coal liquefaction studies, this effect focused on formulations based on the hydrous titanium oxide (HTO) system. The program has the goals of developing a catalyst with (1) high activity, (2) selectively to fuel range or other useful products, and (3) better properties for use in slurry reactors. The program has three main tasks: (1) catalyst synthesis, to develop methods for preparing catalysts having desirable F-T properties, (2) characterization, to investigate catalysts proving to have desirable properties by a variety of analytical techniques to determine correlations between activity and material properties and (3) testing to determine activity and selectivity of catalysts. This paper discussed results of activity testing of Ruhrchemie catalyst and some catalyst formulations prepared using ion exchange on hydrous titanium oxide and precipitation. For example, at 250{degree}C the Ruhrchemie catalyst converts {approximately}50% of the syngas feed to reaction products. In comparison, iron catalysts prepared by ion exchange and precipitation had conversions ranging from 20 to 50% over a temperature range of 250 to 275{degree}C of the syngas feed. In addition, results are Auger surface analysis of Ruhrchemie catalyst are presented. 6 refs., 2 figs., 2 tabs.

Lynch, A.W.; Dosch, R.G.; Sault, A.G.

1990-01-01T23:59:59.000Z

99

Evaluation of a precipitation-ion exchange process for treatment of laundry waste  

SciTech Connect

Bench-scale pilot plant studies were conducted to evaluate chemical coagulation and ion exchange for decontamination of 2724-W laundry wastewater. Chemical coagulation is accomplished at pH 11 to avoid complexant problems and assure good transuranic radionuclide removals. Clinoptilolite is used to remove cesium and strontium. Results of the pilot plant studies are summarized as follows: Decontamination factors of 70 (strontium) and more than 100 (cesium) were achieved by chemical coagulation and ion exchange. Decontamination factors exceeding 90 were measured for europium by coagulation with a combination of ferric chloride, magnesium chloride, and calcium chloride added to the wastewater at pH 11. Coagulation with these three agents in the wastewater at pH 11 was more effective for turbidity removal than coagulation with lime. Addition of up to 1.7 lb of clinoptilolite fines per 1000 gallons of wastewater during coagulation did not substantially increase strontium and cesium removal. Filtration without chemical coagulation reduced suspended solids by only 25%. About 70% of the suspended solids remaining in the filtered wastewater were removed in the zeolite column causing plugging which could not be easily dislodged by backwashing. Plugging of the ion exchange columns by previously clarified wastewater required short periods of limited backwashing to relieve the plug. The plugging is due to CaCO/sub 3/ and is not expected to be a severe problem in a full-scale plant with brief detention times between filtration and ion exchange. A high pressure surface wash should be included in the columns to break up crust or plugs at the surface of the zeolite. Centrifugation of iron sludges for 2 min at 2000 g reduced the sludge volume to about 1% of the total wastewater volume. Wet iron sludges from the sludge storage tank were readily dewatered by vacuum filtration. 14 tables, 9 figures.

Mercer, B.W.; Ames, L.L.

1977-03-15T23:59:59.000Z

100

Preconceptual Design For Separation Of Plutonium And Gallium By Ion Exchange  

E-Print Network (OSTI)

.............................................................................. 5 2.0 BACKGROUND.........................................................................5 3.0 PROCESS DESCRIPTION.............................................................6 3.1 Oxidation of Metal...............................................................7 3.2 Dissolution of Oxide............................................................ 8 3.3 Ion Exchange (IX).............................................................. 8 3.4 Plutonium Product Preparation................................................ 10 3.5 Recycle Operations..............................................................10 3.6 Waste Generation................................................................10 4.0 MATERIAL BALANCES...............................................................11 4.1 Dissolution of Oxide............................................................ 11 4.2 IX Feed Pretreatment.............................

Scott Demuth; Scott F. Demuth

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
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101

Evaluation of selected ion exchangers for the removal of cesium from MVST W-25 supernate  

SciTech Connect

The goal of this batch-test equilibration study was to evaluate the effectiveness of certain ion exchangers for removing cesium from supernate taken from tank W-25 of the Melton Valley Storage Tank (MVST) Facility located at the Oak Ridge National Laboratory (ORNL). These exchangers were selective for removing cesium from alkaline supernatant solutions with high salt concentrations. Since the supernates of evaporator concentrates stored in tanks at the MVST facility have compositions similar to some of those stored in tanks at Hanford, the data generated in this study should prove useful in the overall evaluation of the ion exchangers for applications to Hanford and other US Department of Energy (USDOE) sites. A goal of the waste processing effort at Hanford is to remove enough cesium to ensure that the resulting LLW will meet the Nuclear Regulatory Commission (NRC) 10 CFR 61 class A limit for {sup 137}Cs (1 Ci/m{sup 3} or 1 {mu}Ci/mL). The separated cesium may be concentrated and vitrified for disposal in the high-level waste repository. The decontaminated effluent would be solidified for near-surface disposal.

Collins, J.L.; Egan, B.Z.; Anderson, K.K.; Chase, C.W.; Mrochek, J.E.; Bell, J.T.; Jernigan, G.E.

1995-04-01T23:59:59.000Z

102

Highly selective inorganic crystalline ion-exchange material for Sr{sup 2+} in acidic solutions  

SciTech Connect

We report a novel antimony titanate ion exchange material, stable in highly acidic conditions and selective to strontium against competing cations, with possible applications at Defense Waste Sites. Its development was based on good selectivity for Cs and Sr by the CSTs and literature information on the ion exchange properties of antimony compounds. This new material has been tested for the selective removal of parts per million level concentrations of Sr{sup 2+} ions from solutions with a pH in the range of 1 M HNO{sub 3} tO 5.7 M Na{sup +}/0.6 M OH{sup -} (with the most important results in the highly acidic regimes). This doped titanate has been characterized with an array of techniques, including equilibrium distribution coefficient (K{sub d}) determinations over a wide pH range, power X-ray diffraction, TEM, BET, direct-current plasma (DCP), and thermal analyses. 13 refs., 2 figs., 2 tabs.

Nenoff, T.M.; Miller, J.E.; Thoma, S.G.; Trudell, D.E. [Sandia National Lab., Albuquerque, NM (United States)] [Sandia National Lab., Albuquerque, NM (United States)

1996-12-01T23:59:59.000Z

103

Preparation of polyimide/zinc oxide nanocomposite films via an ion-exchange technique and their photoluminescence properties  

Science Conference Proceedings (OSTI)

Polyimide (PI) composite films with ZnO nanoparticles embedded in the surface layer were prepared by alkali hydrolyzation following ion exchange in Zn(NO3)2 solution and thermal treatment of the zinc ion-doped PI films in air atmosphere. ...

Shuxiang Mu; Dezhen Wu; Shengli Qi; Zhanpeng Wu

2011-01-01T23:59:59.000Z

104

Tailoring interfacial exchange coupling with low-energy ion beam bombardment: Tuning the interface roughness  

SciTech Connect

By ascertaining NiO surface roughness in a Ni{sub 80}Fe{sub 20}/NiO film system, we were able to correlate the effects of altered interface roughness from low-energy ion-beam bombardment of the NiO layer and the different thermal instabilities in the NiO nanocrystallites. From experiment and by modelling the temperature dependence of the exchange bias field and coercivity, we have found that reducing the interface roughness and changing the interface texture from an irregular to striped conformation enhanced the exchange coupling strength. Our results were in good agreement with recent simulations using the domain state model that incorporated interface mixing.

Lin, K.-W.; Shueh, C.; Huang, H.-R.; Hsu, H.-F. [Department of Materials Science and Engineering, National Chung Hsing University, Tiachung 402, Taiwan (China); Mirza, M.; Lierop, J. van [Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada)

2012-03-19T23:59:59.000Z

105

Gas generation and bubble formation model for crystalline silicotitanate ion exchange columns  

SciTech Connect

The authors developed a transient model to describe the process of gas generation due to radiolysis and bubble formation in crystalline silicotitanate (CST) ion exchange (IX) columns using the Aspen Custom Modeler (ACM) software package. The model calculates gas concentrations and onset of bubble formation for large CST IX columns. The calculations include cesium loading as a function of time, gas generation as a function of cesium loading, and bubble formation as a function of gas solubility. This report summarizes the model development and predictions.

Hang, T.

2000-07-19T23:59:59.000Z

106

Program on Technology Innovation: Ion Transport Membrane Oxygen Technology for Advanced Power Generation Systems  

Science Conference Proceedings (OSTI)

This report documents an Electric Power Research Institute (EPRI) Technology Innovation (TI) project that provides background information and increased understanding to EPRI members of the potential benefits of integrating ion transport membrane (ITM) technology for oxygen production with integrated gasification combined cycle (IGCC) and oxyfuel combustion pulverized coal power plants. This TI project also generated new learning by conducting literature reviews of existing and new air separation technolo...

2009-12-21T23:59:59.000Z

107

Modulated active charge exchange fast ion diagnostic for the C-2 field-reversed configuration experiment  

Science Conference Proceedings (OSTI)

A diagnostic technique for measuring the fast-ion energy distribution in a field-reversed configuration plasma was developed and tested on the C-2 experiment. A deuterium neutral beam modulated at 22 kHz is injected into the plasma, producing a localized charge-exchange target for the confined fast protons. The escaping fast neutrals are detected by a neutral particle analyzer. The target beam transverse size ({approx}15 cm) defines the spatial resolution of the method. The equivalent current density of the target beam is {density ({approx}6 Multiplication-Sign 10{sup 9} cm{sup -3}) that highly exceeds the background neutral density in the core of C-2. The deuterium fast-ions due to the target beam (E{approx}27 keV), are not confined in C-2 and thus make a negligible contribution to the measured signals.

Korepanov, S.; Smirnov, A.; Clary, R.; Dettrick, S. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Deichuli, P.; Kondakov, A.; Murakhtin, S. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)

2012-10-15T23:59:59.000Z

108

The removal of uranium from acidic media using ion exchange and/or extraction chromatography  

SciTech Connect

The separation and purification of uranium from either nitric acid or hydrochloric acid media can be accomplished by using either solvent extraction or ion-exchange. Over the past two years at Los Alamos, emerging programs are focused on recapturing the expertise required to do limited, small-quantity processing of enriched uranium. During this period of time, we have been investigating ion-addition, waste stream polishing is associated with this effort in order to achieve more complete removal of uranium prior to recycle of the acid. Extraction chromatography has been demonstrated to further polish the uranium from both nitric and hydrochloric acid media thus allowing for a more complete recovery of the actinide material and creation of less waste during the processing steps.

FitzPatrick, J.R.; Schake, B.S.; Murphy, J.; Holmes, K; West, M.H.

1996-06-01T23:59:59.000Z

109

Emerging Heat Exchanger Technologies for the Mitigation of Fouling in Crude Oil Pre-Heat Trains  

E-Print Network (OSTI)

Over the last three years ESDU have been working with engineers from oil companies and the companies that serve them in order to produce a guide describing the current state of knowledge on fouling in pre-heat trains and ways in which it can be mitigated. One result has been the identification and description of heat exchanger technologies that experience has shown to have a role to play in reducing fouling. This paper describes these developments. As shown elsewhere, the rate at which pre-heat train exchangers foul is controlled by fluid velocity and by wall temperature. Technologies which promote the heat transfer on the crude oil side of an exchanger are therefore favoured. (Note: promotion of the heat transfer on the hot side of the unit is not generally favoured, for this is likely to raise the wall temperature on the crude side). The working party identified three exchanger technologies that made use of this principle: • helical baffles • twisted tubes • tube inserts. These technologies will be discussed in turn.

Polley, G. T.; Pugh, S. J.; King, D. C.

2002-04-01T23:59:59.000Z

110

MODELING ION-EXCHANGE PROCESSING WITH SPHERICAL RESINS FOR CESIUM REMOVAL  

SciTech Connect

The spherical Resorcinol-Formaldehyde and hypothetical spherical SuperLig? 644 ion-exchange resins are evaluated for cesium removal from radioactive waste solutions. Modeling results show that spherical SuperLig? 644 reduces column cycling by 50% for highpotassium solutions. Spherical Resorcinol Formaldehyde performs equally well for the lowestpotassium wastes. Less cycling reduces nitric acid usage during resin elution and sodium addition during resin regeneration, therefore, significantly decreasing life-cycle operational costs. A model assessment of the mechanism behind ?cesium bleed? is also conducted. When a resin bed is eluted, a relatively small amount of cesium remains within resin particles. Cesium can bleed into otherwise decontaminated product in the next loading cycle. The bleed mechanism is shown to be fully isotherm-controlled vs. mass transfer controlled. Knowledge of residual postelution cesium level and resin isotherm can be utilized to predict rate of cesium bleed in a mostly non-loaded column. Overall, this work demonstrates the versatility of the ion-exchange modeling to study the effects of resin characteristics on processing cycles, rates, and cold chemical consumption. This evaluation justifies further development of a spherical form of the SL644 resin.

Hang, T.; Nash, C.; Aleman, S.

2012-09-19T23:59:59.000Z

111

Li-Ion and Other Advanced Battery Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

scientist viewing computer screen scientist viewing computer screen Li-Ion and Other Advanced Battery Technologies The research aims to overcome the fundamental chemical and mechanical instabilities that have impeded the development of batteries for vehicles with acceptable range, acceleration, costs, lifetime, and safety. Its aim is to identify and better understand cell performance and lifetime limitations. These batteries have many other applications, in mobile electronic devices, for example. The work addresses synthesis of components into battery cells with determination of failure modes, materials synthesis and evaluation, advanced diagnostics, and improved electrochemical model development. This research involves: Battery development and analysis; Mathematical modeling; Sophisticated diagnostics;

112

THREE-DIMENSIONAL THERMAL MODELING ANALYSIS OF CST MEDIA FOR THE SMALL ION EXCHANGE PROJECT  

SciTech Connect

The Small Column Ion Exchange (SCIX) project is designed to accelerate closure of High Level Waste (HLW) tanks at the Savannah River Site (SRS). The SRS tanks store HLW in three forms: sludge, saltcake, and supernate. An in-tank ion exchange process is being designed to treat supernate and dissolved saltcake waste. Through this process, radioactive cesium from the salt solution is adsorbed into Crystalline Silicotitanate (CST) ion exchange media packed within a flow-through column. A packed column loaded with radioactive cesium generates significant heat from radiolytic decay. The waste supernate solution within the ion exchange bed will boil around 120 C. Solution superheating above the boiling point within the column could lead to violent hazardous energy releases. System heating from loaded CST is also of concern in other process modules, such as the waste tank. Due to tank structural integrity concerns, the wall temperature limit for the SRS waste tanks is 100 C. The transfer of cesium-loaded CST to the tank could result in localized hot spots on the tank floor and walls which may exceed this limit. As a result, thermal modeling calculations have been conducted to predict the maximum temperatures achievable both in the column and in the waste tank. As specified in the associated Technical Task Plan, one objective of the present work was to compute temperature distributions within the ion exchange column module under accident scenarios including loss of salt solution flow through the bed and loss of coolant system flow. The column modeling domain and the scope of the calculations in this case were broadened relative to previous two-dimensional calculations to include vertical temperature distributions within the packed bed of ion exchange media as well as the upper column plenum region containing only fluid. The baseline design conditions and in-column modeling domain for the ion-exchange column module are shown in Figure 1. These evaluations assumed the maximum bounding cesium loading considered possible based on current knowledge regarding CST media and the anticipated feed compositions. Since this cesium loading was considerably higher than the nominal loading conditions in SRS waste, cases with lower loading were also evaluated. Modeling parameters were the same as those used previously unless otherwise indicated. The current model does not capture multi-phase cooling mechanisms operative when solution boiling occurs. This feature is conservative in the sense that it does not account for the large cooling effects associated with phase transfer. However, the potential transfer of heat to the plenum region associated with vertical bubble ascension through the column during boiling is also neglected. Thermal modeling calculations were also performed for the entire waste storage tank for the case where loaded and ground CST was transferred to the tank. The modeling domain used for the in-tank calculations is provided in Figure 2. The in-tank domain is based on SRS Tank 41, which is a Type-IIIA tank. Temperature distributions were evaluated for cylindrical, ground CST mounds located on the tank floor. Media grinding is required prior to vitrification processing of the CST in the SRS Defense Waste Processing Facility (DWPF). The location of the heat source region on the tank floor due to the accumulation of CST material was assumed to be just under the grinder. The shape of the CST mound was assumed to be cylindrical. This shape is believed to be most representative of the actual mound shape formed in the tank, given that submersible mixing pumps will be available for media dispersion. Alternative configurations involving other geometrical shapes for the CST mound were evaluated in the previous work. Sensitivity analysis for the in-tank region was performed for different amounts of CST media. As was the case for the in-column model, the in-tank model does not include multi-phase cooling mechanisms operative when solution boiling occurs. The in-column and the in-tank evaluations incorporated recently updated maximum cesi

Lee, S.; King, W.

2011-09-12T23:59:59.000Z

113

Ion exchange kinetics of cesium for various reaction designs using crystalline silicotitanate, UOP IONSIV IE-911  

E-Print Network (OSTI)

Through collaborative efforts at Texas A&M University and Sandia National Laboratories, a crystalline silicotitanate (CST), which shows extremely high selectivity for radioactive cesium removal in highly concentrated sodium solutions, was synthesized. The effect of hydrogen peroxide on a CST under cesium ion exchange conditions has been investigated. The experimental results with hydrogen peroxide showed that the distribution coefficient of cesium decreased and the tetragonal phase, the major component of CST, slowly dissolved at hydrogen peroxide concentrations greater than 1 M. A simple and novel experimental apparatus for a single-layer ion exchange column was developed to generate experimental data for estimation of the intraparticle effective diffusivity. A mathematical model is presented for estimation of effective diffusivities for a single-layer column of CST granules. The intraparticle effective diffusivity for Cs was estimated as a parameter in the analytical solution. By using the least square method, the effective diffusivities of 1.56 ± 0.14 x 10-11 m2/s and 0.68 ± 0.09x 10-11 m2/s, respectively, were obtained. The difference in the two values was due to the different viscosities of the solutions. A good fit of the experimental data was obtained which supports the use of the homogeneous model for this system. A counter-current ion exchange (CCIX) process was designed to treat nuclear waste at the Savannah River Site. A numerical method based on the orthogonal collocation method was used to simulate the concentration profile of cesium in the CCIX loaded with CST granules. To maximize cesium loading onto the CST and minimize the volume of CST, two design cases of a moving bed, where the fresh CST is pulsed into the column at certain periods or at certain concentration of cesium, were investigated. Simulation results showed that cesium removal behavior in the pilot-scale test of CCIX experiment, where the column length is 22 ft and the CST is pulsed 1 ft in every 24 hours, was well predicted by using the values of the effective diffusivities of 1.0 to 6.0 × 10-11 m2/s.

Kim, Sung Hyun

2003-12-01T23:59:59.000Z

114

Materials issues in lithium ion rechargeable battery technology  

DOE Green Energy (OSTI)

Lithium ion rechargeable batteries are predicted to replace Ni/Cd as the workhorse consumer battery. The pace of development of this battery system is determined in large part by the availability of materials and the understanding of interfacial reactions between materials. Lithium ion technology is based on the use of two lithium intercalating electrodes. Carbon is the most commonly used anode material, while the cathode materials of choice have been layered lithium metal chalcogenides (LiMX{sub 2}) and lithium spinel-type compounds. Electrolytes may be either organic liquids or polymers. Although the first practical use of graphite intercalation compounds as battery anodes was reported in 1981 for molten salt cells and in 1983 for ambient temperature systems, it was not until Sony Energytech announced a new lithium ion intercalating carbon anode in 1990, that interest peaked. The reason for this heightened interest is that these electrochemical cells have the high energy density, high voltage and light weight of metallic lithium, but without the disadvantages of dendrite formation on charge, improving their safety and cycle life.

Doughty, D.H.

1995-07-01T23:59:59.000Z

115

Investigating the Use of Ion Exchange Resins for Processing Biodiesel Feedstocks  

E-Print Network (OSTI)

Ion exchange resins, commonly used in water treatment, demonstrate promise for the production of biodiesel from biomass feedstocks. The goal of this presented PhD research is to investigate novel uses of ion exchange resins for processing biodiesel feedstocks. Specifically, this research explored using ion exchange resins to remove free fatty acids (FFA) from soybean and waste cooking oils, catalyze transesterification of soybean oil, and catalyze in-situ conversion of dried algal biomass to biodiesel and other recoverable organics. The effect of temperature, moisture content, mixing rate, and resin drying on deacidification of soybean oil with 5% oleic acid feedstock was explored using Dowex Monosphere MR-450 UPW within a batch reactor. The resins were observed to remove up to 83 +/- 1.3% of FFA from soybean oil with less than 5% moisture content while operated at a 20% resin loading at 50 degrees C while mixing at 550 rpm. Once operation characteristics impacting deacidification were evaluated, a series of experiments were carried out to demonstrate the use of mixed bed resin to remove FFA from waste cooking oils. An investigation of wash solutions capable of regenerating the resins was also carried out. Using methanol to regenerate the resins resulted in more than 40% FFA removal over three regeneration cycles, highlighting the utility of resin regeneration as a cost saving measure. Transesterification of soybean oil on Amberlyst A26-OH, a basic ion exchange resin, in the presence of excess methanol was carried out to determine the mechanism of the reaction occurring on the surface. A batch reactor approach was used and reactions were carried out with and without FFA present in the soybean oil feed stock at a 20% resin loading at 50 degrees C while mixing at 550 rpm. When FFA was present in the feedstock and methanol is present in excess, the rate constant for methanol consumption increased. Based upon model fitting, the rate constant of methanol consumption was determined to be 2.08 x 10^-7 /sec with FFA absent and 5.39 x 10^-4/sec when FFA is present when the Eley-Rideal model was used to fit the data. In-situ conversion of dried algal biomass to biodiesel and other recoverable organics was investigated using a batch reaction system with 1 gram of algae. The system was operated with 40:60 methanol:hexane as the solvent system operated at 50 degrees C while mixing at 550 rpm over a range of catalyst loadings. The highest observed ester yield, approximately 60% yield (37 mg_ester/g_algae), was observed when air dried algae was reacted with a 20% resin. An evaluation of the reaction products showed a mixture of esters, phytol, alcohols, and ketones; highlighting the complexity of the reactions occurring during in-situ biomass conversion.

Jamal, Yousuf 1973-

2012-12-01T23:59:59.000Z

116

Monte Carlo simulation of ion trajectories in the modified PDX thermal charge exchange analyzer  

DOE Green Energy (OSTI)

An improved design for the present PDX thermal charge exchange analyzer (MACE) has been proposed by one of the authors, in which the five cylindrical electrostatic plates for mass separation are replaced by a single flat, electrostatic deflection plate. An existihg Monte Carlo code that simulated the passage of ions through the MACE analyzer was modified to examine the feasibility of this change. The resulting calculations were used to optimize detector positions and collimation requirements. The first analyzer to be placed on PDX will be of the old design, similar to the present PLT analyzer. However, if the design reported here is successful on the test stand, the future PDX analyzers will all be of the new, single electrostatic plate variety. A further advantage will be the ability to install as many as ten detectors instead of the current five, thus providing twice as many energy channels for each shot. Also, both mass species (H, D) can be measured concurrently, if desired.

Kaita, R.; Davis, S.L.; Medley, S.S.

1978-12-01T23:59:59.000Z

117

THERMAL MODELING ANALYSIS OF CST MEDIA IN THE SMALL COLUMN ION EXCHANGE PROJECT  

SciTech Connect

Models have been developed to simulate the thermal characteristics of Crystalline Silicotitanate (CST) ion exchange media fully loaded with radioactive cesium in a column configuration and distributed within a waste storage tank. This work was conducted to support the Small Column Ion Exchange (SCIX) program which is focused on processing dissolved, high-sodium salt waste for the removal of specific radionuclides (including Cs-137, Sr-90, and actinides) within a High Level Waste (HLW) storage tank at the Savannah River Site. The SCIX design includes CST columns inserted and supported in the tank top risers for cesium removal. Temperature distributions and maximum temperatures across the column were calculated with a focus on process upset conditions. A two-dimensional computational modeling approach for the in-column ion-exchange domain was taken to include conservative, bounding estimates for key parameters such that the results would provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on CST. One salt processing scenario includes the transport of the loaded (and possibly ground) CST media to the treatment tank floor. Therefore, additional thermal modeling calculations were conducted using a three-dimensional approach to evaluate temperature distributions for the entire in-tank domain including distribution of the spent CST media either as a mound or a flat layer on the tank floor. These calculations included mixtures of CST with HLW sludge or loaded Monosodium Titanate (MST) media used for strontium/actinide sorption. The current full-scale design for the CST column includes one central cooling pipe and four outer cooling tubes. Most calculations assumed that the fluid within the column was stagnant (i.e. no buoyancy-induced flow) for a conservative estimate. A primary objective of these calculations was to estimate temperature distributions across packed CST beds immersed in waste supernate or filled with dry air under various accident scenarios. Accident scenarios evaluated included loss of salt solution flow through the bed (a primary heat transfer mechanism), inadvertent column drainage, and loss of active cooling in the column. The calculation results showed that for a wet CST column with active cooling through one central and four outer tubes and 35 C ambient external air, the peak temperature for the fully-loaded column is about 63 C under the loss of fluid flow accident, which is well below the supernate boiling point. The peak temperature for the naturally-cooled (no active, engineered cooling) wet column is 156 C under fully-loaded conditions, exceeding the 130 C boiling point. Under these conditions, supernate boiling would maintain the column temperature near 130 C until all supernate was vaporized. Without active engineered cooling and assuming a dry column suspended in unventilated air at 35 C, the fully-loaded column is expected to rise to a maximum of about 258 C due to the combined loss-of coolant and column drainage accidents. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature. Results for the in-tank modeling calculations clearly indicate that when realistic heat transfer boundary conditions are imposed on the bottom surface of the tank wall, as much as 450 gallons of ground CST (a volume equivalent to two ion exchange processing cycles) in an ideal hemispherical shape (the most conservative geometry) can be placed in the tank without exceeding the 100 C wall temperature limit. Furthermore, in the case of an evenly-distributed flat layer, the tank wall reaches the temperature limit after the ground CST material reaches a height of approximately 8 inches.

Lee, S.

2010-11-01T23:59:59.000Z

118

Technology Development Roadmap for the Advanced High Temperature Reactor Secondary Heat Exchanger  

Science Conference Proceedings (OSTI)

This Technology Development Roadmap (TDRM) presents the path forward for deploying large-scale molten salt secondary heat exchangers (MS-SHX) and recognizing the benefits of using molten salt as the heat transport medium for advanced high temperature reactors (AHTR). This TDRM will aid in the development and selection of the required heat exchanger for: power production (the first anticipated process heat application), hydrogen production, steam methane reforming, methanol to gasoline production, or ammonia production. This TDRM (a) establishes the current state of molten salt SHX technology readiness, (b) defines a path forward that systematically and effectively tests this technology to overcome areas of uncertainty, (c) demonstrates the achievement of an appropriate level of maturity prior to construction and plant operation, and (d) identifies issues and prioritizes future work for maturing the state of SHX technology. This study discusses the results of a preliminary design analysis of the SHX and explains the evaluation and selection methodology. An important engineering challenge will be to prevent the molten salt from freezing during normal and off-normal operations because of its high melting temperature (390°C for KF ZrF4). The efficient transfer of energy for industrial applications depends on the ability to incorporate cost-effective heat exchangers between the nuclear heat transport system and industrial process heat transport system. The need for efficiency, compactness, and safety challenge the capabilities of existing heat exchanger technology. The description of potential heat exchanger configurations or designs (such as printed circuit, spiral or helical coiled, ceramic, plate and fin, and plate type) were covered in an earlier report (Sabharwall et al. 2011). Significant future work, much of which is suggested in this report, is needed before the benefits and full potential of the AHTR can be realized. The execution of this TDRM will focuses research efforts on the near-term qualification, selection, or maturation strategy as detailed in this report. Development of the integration methodology feasibility study, along with research and development (R&D) needs, are ongoing tasks that will be covered in the future reports as work progresses. Section 2 briefly presents the integration of AHTR technology with conventional chemical industrial processes., See Idaho National Laboratory (INL) TEV-1160 (2011) for further details

P. Sabharwall; M. McCllar; A. Siahpush; D. Clark; M. Patterson; J. Collins

2012-09-01T23:59:59.000Z

119

Small-Column Cesium Ion Exchange Elution Testing of Spherical Resorcinol-Formaldehyde  

Science Conference Proceedings (OSTI)

This report summarizes the work performed to evaluate multiple, cesium loading, and elution cycles for small columns containing SRF resin using a simple, high-level waste (HLW) simulant. Cesium ion exchange loading and elution curves were generated for a nominal 5 M Na, 2.4E-05 M Cs, 0.115 M Al loading solution traced with 134Cs followed by elution with variable HNO3 (0.02, 0.07, 0.15, 0.23, and 0.28 M) containing variable CsNO3 (5.0E-09, 5.0E-08, and 5.0E-07 M) and traced with 137Cs. The ion exchange system consisted of a pump, tubing, process solutions, and a single, small ({approx}15.7 mL) bed of SRF resin with a water-jacketed column for temperature-control. The columns were loaded with approximately 250 bed volumes (BVs) of feed solution at 45 C and at 1.5 to 12 BV per hour (0.15 to 1.2 cm/min). The columns were then eluted with 29+ BVs of HNO3 processed at 25 C and at 1.4 BV/h. The two independent tracers allowed analysis of the on-column cesium interaction between the loading and elution solutions. The objective of these tests was to improve the correlation between the spent resin cesium content and cesium leached out of the resin in subsequent loading cycles (cesium leakage) to help establish acid strength and purity requirements.

Brown, Garrett N.; Russell, Renee L.; Peterson, Reid A.

2011-10-21T23:59:59.000Z

120

The use of fuel cell ion exchange membranes in electrolytic cells les membranes echangeuses d'ions des piles a combustibles  

SciTech Connect

Ion exchange membranes, previously used in fuel cells, were studied in order to examine their application to water electrolysis. State-of-the-art is reviewed from the bibliography, comparing this process with a classic one. Results show that only the cationic membranes are adequate for electrolytic cell use, being sufficiently resistant to heat and oxidation.

Damien, A.; Sohm, J.C.

1977-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Anionic Gallium-Based Metal;#8722;Organic Framework and Its Sorption and Ion-Exchange Properties  

SciTech Connect

A gallium-based metal-organic framework Ga{sub 6}(C{sub 9}H{sub 3}O{sub 6}){sub 8} {center_dot} (C{sub 2}H{sub 8}N){sub 6}(C{sub 3}H{sub 7}NO){sub 3}(H{sub 2}O){sub 26} [1, Ga{sub 6}(1,3,5-BTC){sub 8} {center_dot} 6DMA {center_dot} 3DMF {center_dot} 26H{sub 2}O], GaMOF-1; BTC = benzenetricarboxylate/trimesic acid and DMA = dimethylamine, with space group I{bar 4}3d, a = 19.611(1) {angstrom}, and V = 7953.4(6) {angstrom}{sup 3}, was synthesized using solvothermal techniques and characterized by synchrotron-based X-ray microcrystal diffraction. Compound 1 contains isolated gallium tetrahedra connected by the organic linker (BTC) forming a 3,4-connected anionic porous network. Disordered positively charged ions and solvent molecules are present in the pore, compensating for the negative charge of the framework. These positively charged molecules could be exchanged with alkali-metal ions, as is evident by an ICP-MS study. The H{sub 2} storage capacity of the parent framework is moderate with a H{sub 2} storage capacity of {approx}0.5 wt % at 77 K and 1 atm.

Banerjee, Debasis; Kim, Sun Jin; Wu, Haohan; Xu, Wenqian; Borkowski, Lauren A.; Li, Jing; Parise, John B. (Kwangju); (Rutgers); (SBU)

2012-04-30T23:59:59.000Z

122

TransForum v8n1 - Li-Ion Battery Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

material, a key element of the material licensed to NanoeXa. Argonne's Lithium-Ion Battery Technology Offers Reliability, Greater Safety Argonnes an internationally...

123

STUDIES OF X-RAY PRODUCTION FOLLOWING CHARGE EXCHANGE RECOMBINATION BETWEEN HIGHLY CHARGED IONS AND NEUTRAL ATOMS AND MOLECULES  

DOE Green Energy (OSTI)

We have used microcalorimeters built by the NASA/Goddard Space Flight Center and the Lawrence Livermore National Laboratory Electron Beam Ion Trap to measure X-ray emission produced by charge exchange reactions between highly charged ions colliding with neutral helium, hydrogen, and nitrogen gas. Our measurements show the spectral dependence on neutral species and also show the distinct differences between spectra produced by charge exchange reactions and those produced by direct impact excitation. These results are part of an ongoing experimental investigation at the LLNL EBIT facility of charge exchange spectral signatures and can be used to interpret X-ray spectra produced by a variety of laboratory and celestial sources including cometary and planetary atmospheres, the Earth's magnetosheath, the heliosphere, and tokamaks.

Brown, G V; Beiersdorfer, P; Chen, H; Clementson, J; Frankel, M; Gu, M F; Kelley, R L; Kilbourne, C A; Porter, F S; Thorn, D B; Wargelin, B J

2008-08-28T23:59:59.000Z

124

Technical Specification for a Transportable Lithium-Ion Energy Storage System for Grid Support Using Commercially Available Lithium- Ion Technology  

Science Conference Proceedings (OSTI)

The impressive global scale of lithium-ion battery production and investment in R&D is driving cost reduction and performance improvements that could make lithium-ion technology desirable for certain grid-scale storage applications in the near term. Although many stationary grid market applications can be configured using lithium-ion batteries, Electric Power Research Institute (EPRI) research identified a 1-MW, 2-hour containerized substation grid support storage system as a key electric utility product...

2012-07-31T23:59:59.000Z

125

Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue  

DOE Patents (OSTI)

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered for the particles by contacting or washing them with an aqueous solution containing calcium or magnesium ions in an alkali metal recovery zone at a low temperature, preferably below about 249.degree. F. During the washing or leaching process, the calcium or magnesium ions displace alkali metal ions held by ion exchange sites in the particles thereby liberating the ions and producing an aqueous effluent containing alkali metal constituents. The aqueous effluent from the alkali metal recovery zone is then recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.

Sharp, David W. (Seabrook, TX)

1980-01-01T23:59:59.000Z

126

Available Technologies: Lower Cost Lithium Ion Batteries from ...  

Lower Cost Lithium Ion Batteries from ... Although lithium ion batteries are the most promising candidates for plug-in hybrid electric vehicles, the u ...

127

Synthesis, Characterization and Ion Exchange of New Na/Nb/M(4+)/O/H(2)O(M=Ti,Zr) Phases  

Science Conference Proceedings (OSTI)

Due to the vast diversity of chemical media in which metal separations are executed, a wide range of ion separation materials are employed. This results in an ongoing effort to discover new phases with novel ion exchange properties. We present here the synthesis of a novel class of thermally and chemically stable microporous, niobate-based materials. Ion exchange studies show these new phases are highly selective for Sr2+ and other bivalent metals.

Nenoff, Tina M.; Nyman, May

1999-05-07T23:59:59.000Z

128

Synthesis, Characterization and Ion Exchange of New Na/Nb/M(4+)/O/H(2)O(M=Ti,Zr) Phases  

SciTech Connect

Due to the vast diversity of chemical media in which metal separations are executed, a wide range of ion separation materials are employed. This results in an ongoing effort to discover new phases with novel ion exchange properties. We present here the synthesis of a novel class of thermally and chemically stable microporous, niobate-based materials. Ion exchange studies show these new phases are highly selective for Sr2+ and other bivalent metals.

Nenoff, Tina M.; Nyman, May

1999-05-07T23:59:59.000Z

129

Applications of Highly Cross Linked Mixed Bed Ion Exchange Resins in Biodiesel Processing  

E-Print Network (OSTI)

Biofuels are a promising solution to society's quest for sustainable energy. In the transportation sector, biodiesel is the leading alternative diesel fuel currently in use today. However, the current global and domestic production of biodiesel is far below the petro-diesel consumption and demand. To increase the availability of biodiesel in the market, new methods of biodiesel production must be developed to take advantage of the plentiful low quality waste derived feed stocks that currently present problems to biodiesel production using conventional methods. This research presents one new approach based upon using heterogeneous highly cross linked mixed bed solid phase catalysts to facilitate the production of biodiesel from feed stocks with high concentrations of free fatty acids (FFA). The performance of the heterogeneous mixed bed catalysts method developed in this research was evaluated and optimized for catalyst concentration and reaction duration while the mixing rate, reaction temperature, initial FFA composition of the feed stock and the alcohol-to-oil molar ratio were kept constant. The presented method reduces the FFA content of the starting feed stock while limiting the release of water into the reaction. Through experimentation, it was found that FFA removal with the mixed bed resin is due to ion exchange with the quaternary ammonium functional group and not catalysis to form esters. A model describing the heterogeneous processing method is presented. The outcome of this research is the development of a new processing method that can be used to create biodiesel from poor quality raw feed stock materials.

Jamal, Yousuf

2009-08-01T23:59:59.000Z

130

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect

The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and actinides from Savannah River Site (SRS) Liquid Waste using an existing waste tank as process housing. This method includes the addition of monosodium titanate (MST) to a waste tank containing salt solution and entrained sludge solids, followed by tank mixing and filtration. The filtrate is then processed through in-tank ion exchange columns containing crystalline silicotitanate (CST) media. While the process is operating, it is known that solid particles begin to settle in the tank and temperatures may reach beyond 45 C. Previous testing has shown that sludge-MST slurries that sit for extended periods at elevated temperatures can develop large shear strengths, making them difficult to resuspend and remove from the tank. The authors conducted rheological testing of mixtures containing various concentrations of sludge simulant, MST, and CST (three preparations) that were aged at different times (i.e., 0 to 13 weeks) and isothermally maintained to 30, 45, or 60 C. Two types of grinding methodologies were employed to prepare CST for this testing, herein called Savannah River National Laboratory (SRNL) and Vitreous State Laboratory (VSL) ground materials. Unground CST particles were also tested. A small number of samples were irradiated prior to 4 week settling and 60 C temperature treatment, with exposures ranging from 0 to 100 MRad. Additional tests are also being conducted that will allow the solid particles to settle at 45 C for 6, 12, and 24 months. The objectives of this task are to determine the impact of feed composition, settling time, and temperature on the shear strength, yield stress, and consistency of the slurries and to determine the impact of radiation on slurry rheology. The testing will determine the relative impact of these parameters rather than predict the shear strength, yield stress, and consistency as a function of feed and operating conditions. This document describes the rheology of slurries containing MST, CST, and simulated sludge that sat at indicated temperatures for up to 13 weeks. A previous SRNL report described preliminary rheology data of slurries containing MST and sludge. Preliminary results of the irradiation tests are also presented in this report, though additional data are still being collected. Rheology of the long term settling samples (6, 12, and 24 months) and additional irradiation test results will be reported at a later date. Conclusions from this analysis are as follows: (1) Slurries containing MST and unground CST have the largest shear strength. Due to the high shear strengths measured in slurries containing unground CST, evaluations of specific tank contents and mixing capability should be performed prior to any addition of this material into a waste tank. Experimentally determined shear strengths indicate mixing could be problematic in mixtures containing unground CST. (2) Increasing the ground CST fraction in the slurry increases the slurry shear strength, yield stress, and consistency. (3) Increasing the sludge fraction in the slurry decreases the slurry shear strength, yield stress, and consistency. (4) Slurries containing VSL ground CST have larger shear strength, yield stress, and consistency than slurries containing SRNL ground CST. (5) The effects of settling time and temperature on slurry shear strength are slurry dependent. (6) No effects of settling time and temperature on slurry yield stress or consistency were observed. (7) Radiation up to 100 MRad does not appear to affect properties of shear strength, yield stress, or consistency of process feeds.

Ferguson, C.; Prior, M.; Koopman, D.; Edwards, T.

2011-06-20T23:59:59.000Z

131

SEPARATION OF PROTEINS BY ION EXCHANGE AND MEMBRANE CHROMATOGRAPHY: BUFFER COMPOSITION, INTERFERING IMPURITIES AND FOULING CONSIDERATIONS  

E-Print Network (OSTI)

Efficient separation of target protein from impurities is crucial in bioseparation for large scale production and purity of the target protein. Two separation process approaches were considered in this study. The first approach focused on identifying major impurity and optimization of solution properties for target protein purification. The second approach consisted of designing an adsorbent that interacted specifically with the target molecule. The first study included modification of protein solution properties (pH, ionic strength, buffer ions) in order to maximize lysozyme purification by a strong cation exchange resin. The interaction of phytic acid, a major impurity, present in transgenic rice extracts, that contributes to decreased lysozyme adsorption capacity on SP Sepharose was evaluated. The target protein was lysozyme, which is used in a purified form as a baby formula additive to reduce gastrointestinal tract infections. At constant ionic strength, lysozyme in pH 4.5 acetate buffer had a higher binding capacity and stronger binding strength than at pH 6.0. Lysozyme in sodium phosphate buffer of pH 6.0 exhibited lower adsorption capacity than in pH 6 Tris buffer. Binding capacity and strength were significantly affected by phytic acid in all studies buffers. The second study consisted of surface modification of microfiltration membranes for protein purification and separation and reduces fouling. This study describes adsorption and fouling of chemically modified microfiltration membranes with bovine serum albumin (BSA) and immunoglobulin G (IgG). Least fouling resulted with polyethylene glycol (PEG) membranes when BSA protein was used. Amine-functionalized membranes showed specific interaction with BSA. There was multi-layer deposition of IgG on amine-functionalized membrane. G3 membrane synthesized to selectively bind IgG seemed a noble option to separate IgG from a protein mixture.

Imam, Tahmina

2009-05-01T23:59:59.000Z

132

Preconceptual design for separation of plutonium and gallium by ion exchange  

SciTech Connect

The disposition of plutonium from decommissioned nuclear weapons, by incorporation into commercial UO{sub 2}-based nuclear reactor fuel, is a viable means to reduce the potential for theft of excess plutonium. This fuel, which would be a combination of plutonium oxide and uranium oxide, is referred to as a mixed oxide (MOX). Following power generation in commercial reactors with this fuel, the remaining plutonium would become mixed with highly radioactive fission products in a spent fuel assembly. The radioactivity, complex chemical composition, and large size of this spent fuel assembly, would make theft difficult with elaborate chemical processing required for plutonium recovery. In fabricating the MOX fuel, it is important to maintain current commercial fuel purity specifications. While impurities from the weapons plutonium may or may not have a detrimental affect on the fuel fabrication or fuel/cladding performance, certifying the effect as insignificant could be more costly than purification. Two primary concerns have been raised with regard to the gallium impurity: (1) gallium vaporization during fuel sintering may adversely affect the MOX fuel fabrication process, and (2) gallium vaporization during reactor operation may adversely affect the fuel cladding performance. Consequently, processes for the separation of plutonium from gallium are currently being developed and/or designed. In particular, two separation processes are being considered: (1) a developmental, potentially lower cost and lower waste, thermal vaporization process following PuO{sub 2} powder preparation, and (2) an off-the-shelf, potentially higher cost and higher waste, aqueous-based ion exchange (IX) process. While it is planned to use the thermal vaporization process should its development prove successful, IX has been recommended as a backup process. This report presents a preconceptual design with material balances for separation of plutonium from gallium by IX.

DeMuth, S.F.

1997-09-30T23:59:59.000Z

133

3-Dimensional Flow Modeling of a Proposed Hanford Waste Treatment Plant Ion-Exchange Column Design  

DOE Green Energy (OSTI)

Historically, it has been assumed that the inlet and outlet low activity waste plenums would be designed such that a nearly uniform velocity profile would be maintained at every axial cross-section (i.e., providing nearly 100 percent use of the resin bed). With this proposed design, we see a LAW outlet distributor that results in significant non-axial velocity gradients in the bottom regions of the bed with the potential to reduce the effectiveness'' of the overall resin bed. The magnitude of this efficiency reduction depends upon how far up-gradient of the LAW outlet these non-axial velocities persist and to what extent a ''dead-zone'' is established beneath the LAW outlet. This can impact loading and elution performance of the ion-exchange facility. Currently, no experimental studies are planned. The primary objective of this work was, through modeling, to assess the fluid dynamic impact on ''effective'' resin volume of the full-scale column based on its normal operation using a recently proposed LAW outlet distributor. The analysis effort was limited to 3-D flow only analyses (i.e., no follow on transport analyses) with 3-D particle tracking to approximate the impact that a nonaxial velocity profile would have on bed ''effectiveness''. Additional analyses were performed to estimate under nominal operating conditions the thermal temperature rise across a loaded resin bed and within its particles. Hydrogen bubble formation is not considered in the heat transfer analysis or in the determination of minimum flowrate. All modeling objectives were met.

ALEMAN, SEBASTIAN

2002-11-01T23:59:59.000Z

134

Available Technologies: High Power Performance Lithium Ion Battery  

Cell 1, which has the highest binder (PVDF) to acetylene black ratio, displays the most favorable discharge ASI. Lithium ion batteries with high power ...

135

Available Technologies: Compact Toroidal Magnet for Carbon Ion ...  

To determine how to precisely guide the stream of accelerating, ... Carbon ions deposit more energy to the target, and thus can be delivered in smaller doses, ...

136

Design and technology of heat pipes for cooling and heat exchange  

SciTech Connect

This new book presents a comprehensive account of heat pipe design, technology, and operation. It is based on insights and techniques developed by the author during more than twenty years of investigating high-performance heat pipe systems. The book provides information on a unique device with the capability to transport heat isothermally at high rates with no external power input. Emphasis is on high-performance liquid metal heat pipes, although nonliquid metal heat pipes are treated, as well. The first three chapters deal with the nonmathematical background for understanding heat pipe operation and heat transport capability. Remaining chapters detail heat pipe characteristics and design methods. Of special interest are simplified equations for obtaining heat pipe heat transport limits, heat pipe heat exchangers, heat pipe transient behavior, and inverted (nonwetting) heat pipes. Operational boundaries on heat pipe temperature and heat transport rate are described, and step-by-step procedures are given for involved calculations.

Silverstein, C.C.

1992-01-01T23:59:59.000Z

137

Advanced Lithium Ion Battery Technologies - Energy Innovation Portal  

The Berkeley Lab technology contributes to improved battery safety by circumventing lithium metal dendrite formation. Benefits. ... hybrid electric vehicles;

138

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect

The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and actinides from Savannah River Site (SRS) Liquid Waste using an existing waste tank (i.e., Tank 41H) to house the process. This process adds monosodium titanate (MST) to a waste tank containing salt solution (and entrained sludge solids). While the process is operating, the solid particles will begin to settle at temperatures up to 45 C. Previous testing has shown that sludge-MST slurries that sit for extended periods (i.e., 1-61 days) at elevated temperatures (i.e., 23-80 C) can develop large shear strengths which could make them difficult to resuspend and remove from the tank. The authors are conducting rheological testing of mixtures containing various concentrations of sludge, MST, and crystalline silicotitanate (CST, ground and unground) that have been aged at different times (i.e., 0 to 13 weeks) and isothermally heated to 30, 45, or 60 C. Additional tests are being conducted that will allow the solid particles to settle at 45 C for 6, 12, and 24 months. The objectives of this task are to determine the impact of settling time and temperature on the shear strength, yield stress, and consistency of the slurries and to determine the impact of radiation on slurry rheology. The testing will determine the relative impact of these parameters rather than predict the shear strength, yield stress, and consistency as a function of feed and operating conditions. This document describes the rheology of slurries containing MST and simulated sludge that sat at elevated temperatures (i.e., up to 60 C) for up to 13 weeks. Rheology of CST-containing slurries, as well as results of the long term settling (6, 12, and 24 months) and irradiation tests (10 and 100 MRad), will be reported later. The conclusions from this analysis follow: (1) MST only slurries that sat at elevated temperatures had larger shear strength, yield stress, and consistency than MST plus sludge slurries that settled at elevated temperatures. (2) The addition of sludge to an MST slurry reduces the shear strength, yield stress, and consistency. (3) The impact of settling time and temperature on slurry rheology is inconclusive at this time. The authors are collecting additional data to attempt to determine the impact of settling time and temperature on slurry shear strength, yield stress, and consistency.

Poirier, M.; Ferguson, C.; Koopman, D.

2011-01-27T23:59:59.000Z

139

TRIPLICATE SODIUM IODIDE GAMMA RAY MONITORS FOR THE SMALL COLUMN ION EXCHANGE PROGRAM  

SciTech Connect

This technical report contains recommendations from the Analytical Development (AD) organization of the Savannah River National Laboratory (SRNL) for a system of triplicate Sodium Iodide (NaI) detectors to be used to monitor Cesium-137 ({sup 137}Cs) content of the Decontaminated Salt Solution (DSS) output of the Small Column Ion Exchange (SCIX) process. These detectors need to be gain stabilized with respect to temperature shifts since they will be installed on top of Tank 41 at the Savannah River Site (SRS). This will be accomplished using NaI crystals doped with the alpha-emitting isotope, Americium-241({sup 241}Am). Two energy regions of the detector output will be monitored using single-channel analyzers (SCAs), the {sup 137}Cs full-energy {gamma}-ray peak and the {sup 241}Am alpha peak. The count rate in the gamma peak region will be proportional to the {sup 137}Cs content in the DSS output. The constant rate of alpha decay in the NaI crystal will be monitored and used as feedback to adjust the high voltage supply to the detector in response to temperature variation. An analysis of theoretical {sup 137}Cs breakthrough curves was used to estimate the gamma activity expected in the DSS output during a single iteration of the process. Count rates arising from the DSS and background sources were predicted using Microshield modeling software. The current plan for shielding the detectors within an enclosure with four-inch thick steel walls should allow the detectors to operate with the sensitivity required to perform these measurements. Calibration, testing, and maintenance requirements for the detector system are outlined as well. The purpose of SCIX is to remove and concentrate high-level radioisotopes from SRS salt waste resulting in two waste streams. The concentrated high-level waste containing {sup 137}Cs will be sent to the Defense Waste Processing Facility (DWPF) for vitrification and the low-level DSS will be sent to the Saltstone Production Facility (SPF) to be incorporated into grout.

Couture, A.

2011-09-20T23:59:59.000Z

140

SUMMARY REPORT ON POTENTIAL IMPACTS OF SMALL COLUMN ION EXCHANGE ON DWPF GLASS FORMULATION  

SciTech Connect

This report summarizes a large amount of experimental work completed to identify the potential impacts of material from Small Column Ion Exchange (SCIX) on glass formulation at the Defense Waste Processing Facility (DWPF). The results show no significant issues with the predicted values of chemical durability and viscosity using the current Product Composition Control System (PCCS) models when the SCIX components are added to projected DWPF glass compositions. No modifications to the viscosity and durability models appear to be necessary at this time in order to incorporate the SCIX streams at DWPF. It is recommended that the Savannah River National Laboratory (SRNL) continue to verify the durability and viscosity models as the projected compositions for DWPF processing evolve. It is also recommended that the data generated thus far be reviewed and a determination be made as to how best to extend the validation ranges of the durability and viscosity models. The liquidus temperatures for the experimental glasses are also reported and discussed in this report. The results show that the measured or estimated (based on measured data) liquidus temperature values for the glasses with SCIX components added are consistently higher than those predicted by the current model. Therefore, the PCCS liquidus temperature model will need to be modified in order to incorporate the SCIX streams at DWPF. It is recommended that SRNL carry out full measurements of the liquidus temperatures for those KT-series glasses where estimates have been made. These data should then be used to support an evaluation of whether a refitting of the liquidus temperature model coefficients will be sufficient to correctly predict the liquidus temperature of glasses containing the SCIX components (particularly higher TiO{sub 2} concentrations), or whether additional modifications to the model are required. While there are prediction issues with the current liquidus temperature model, they are not at this time expected to hamper the incorporation of SCIX streams at DWPF. The estimated liquidus temperatures, while higher than the model predicted values, remain below the current DWPF limit of 1050 C for most of the study glasses. Note that the properties and performance of the glasses in this study are highly dependent on glass composition. Therefore, should significant changes be made to the projected compositions or processing rates for SCIX or DWPF, many of the assessments and experiments may have to be revisited.

Fox, K.; Edwards, T.; Johnson, F.

2011-04-27T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

UV and EB Curable Binder Technology for Lithium Ion Batteries and UltraCapacitors  

DOE Green Energy (OSTI)

the basic feasibility of using UV curing technology to produce Lithium ion battery electrodes at speeds over 200 feet per minute has been shown. A unique set of UV curable chemicals were discovered that were proven to be compatible with a Lithium ion battery environment with the adhesion qualities of PVDF.

Voelker, Gary

2012-04-30T23:59:59.000Z

142

Radiation-Induced Degradation in Ion Exchange Resins for a Water Detritiation System  

Science Conference Proceedings (OSTI)

Tritium, Safety, and Environment / Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1)

Yasunori Iwai; Toshihiko Yamanishi; Akihiro Hiroki; Masao Tamada

143

Extraction of cesium from an alkaline leaching solution of spent catalysts using an ion-exchange column  

Science Conference Proceedings (OSTI)

The selective extraction of cesium from an alkaline leaching solution of spent catalysts using phenolic resins was studied. The resins were synthesized by alkaline polycondensation of formaldehyde by phenol, resorcinol, catechol, and phloroglucinol. Their ionoselectivities for five alkali metals were evaluated with a solid-liquid extraction, and their ion-exchange capacities were compared. The resin with the best selectivity for cesium was tested with a real solution at different pH values. An on-column extraction is proposed to obtain cesium with high purity.

Dumont, N.; Favre-Reguillon, A.; Dunjic, B.; Lemaire, M. [Institut De Recherches sur la Catalyse et Laboratoire de Catalyse et Synthese Organique, Villeubanne (France)

1996-04-01T23:59:59.000Z

144

PILOT-SCALE HYDRAULIC TESTING OF RESORCINOL FORMALDEHYDE ION EXCHANGE RESIN  

DOE Green Energy (OSTI)

Savannah River National Laboratory (SRNL) performed pilot-scale hydraulic/chemical testing of spherical resorcinol formaldehyde (RF) ion exchange (IX) resin for the River Protection Project-Hanford Tank Waste Treatment & Immobilization Plant (WTP) Project. The RF resin cycle testing was conducted in two pilot-scale IX columns, 1/4 and 1/2 scale. A total of twenty-three hydraulic/chemical cycles were successfully completed on the spherical RF resin. Seven of the cycles were completed in the 12 inch IX Column and sixteen cycles were completed in the 24 inch IX Column. Hydraulic testing showed that the permeability of the RF resin remained essentially constant, with no observed trend in the reduction of the permeability as the number of cycles increased. The permeability during the pilot-scale testing was 2 1/2 times better than the design requirements of the WTP full-scale system. The permeability of the resin bed was uniform with respect to changes in bed depth. Upflow Regeneration and Simulant Introduction in the IX columns revealed another RF resin benefit; negligible radial pressures to the column walls from the swelling of resin beads. In downflow of the Regeneration and Simulant Introduction steps, the resin bed particles pack tightly together and produce higher hydraulic pressures than that found in upflow. Also, upflow Simulant Introduction produced an ideal level bed for the twenty cycles completed using upflow Simulant Introduction. Conversely, the three cycles conducted using downflow Simulant Introduction produced an uneven bed surface with erosion around the thermowells. The RF resin bed in both columns showed no tendency to form fissures or pack more densely as the number of cycles increased. Particle size measurements of the RF resin showed no indication of particle size change (for a given chemical) with cycles and essentially no fines formation. Micrographs comparing representative bead samples before and after testing indicated no change in bead morphology. The skeletal density of the RF resin in the 24 inch IX Column increased slightly with cycling (in both hydrogen and sodium form). The chemical solutions used in the pilot-scale testing remained clear throughout testing, indicating very little chemical breakdown of the RF resin beads. The RF resin particles did not break down and produce fines, which would have resulted in higher pressure drops across the resin bed. Three cesium (Cs) loading tests were conducted on the RF resin in pilot-scale IX columns. Laboratory analyses concluded the Cs in the effluent never exceeded the detection limit. Therefore, there was no measurable degradation in cesium removal performance. Using the pilot-scale systems to add the RF resin to the columns and removing the resin from the columns was found to work well. The resin was added and removed from the columns three times with no operational concerns. Whether the resin was in sodium or hydrogen form, the resin flowed well and resulted in an ideal resin bed formation during each Resin Addition. During Resin Removal, 99+ % of the resin was easily sluiced out of the IX column. The hydraulic performance of the spherical RF resin during cycle testing was found to be superior to all other tested IX resins, and SRNL testing indicates that the resin should hold up to many cycles in actual radioactive Cs separation. The RF resin was found to be durable in the long term cycle testing and should result in a cost saving in actual operations when compared to other IX resins.

Adamson, D

2006-11-08T23:59:59.000Z

145

IMPACT OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION MELT RATE STUDIES  

SciTech Connect

This study was undertaken to evaluate the potential impacts of the Small Column Ion Exchange (SCIX) streams - particularly the addition of Monosodium Titanate (MST) and Crystalline Silicotitanate (CST) - on the melt rate of simulated feed for the Defense Waste Processing Facility (DWPF). Additional MST was added to account for contributions from the Salt Waste Processing Facility (SWPF). The Savannah River National Laboratory (SRNL) Melt Rate Furnace (MRF) was used to evaluate four melter feed compositions: two with simulated SCIX and SWPF material and two without. The Slurry-fed Melt Rate Furnace (SMRF) was then used to compare two different feeds: one with and one without bounding concentrations of simulated SCIX and SWPF material. Analyses of the melter feed materials confirmed that they met their targeted compositions. Four feeds were tested in triplicate in the MRF. The linear melt rates were determined by using X-ray computed tomography to measure the height of the glass formed along the bottom of the beakers. The addition of the SCIX and SWPF material reduced the average measured melt rate by about 10% in MRF testing, although there was significant scatter in the data. Two feeds were tested in the SMRF. It was noted that the ground CST alone (ground CST with liquid in a bucket) was extremely difficult to resuspend during preparation of the feed with material from SCIX and SWPF. This feed was also more difficult to pump than the material without MST and CST due to settling occurring in the melter feed line, although the yield stress of both feeds was high relative to the DWPF design basis. Steady state feeding conditions were maintained for about five hours for each feed. There was a reduction in the feed and pour rates of approximately 15% when CST and MST were added to the feed, although there was significant scatter in the data. Analysis of samples collected from the SMRF pour stream showed that the composition of the glass changed as expected when MST and CST were added to the feed. These reductions in melt rate are consistent with previous studies that showed a negative impact of increased TiO{sub 2} concentrations on the rate of melting. The impact of agitating the melt pool via bubbling was not studied as part of this work, but may be of interest for further testing. It is recommended that additional melt rate testing be performed should a potential reduction in melt rate of 10-15% be considered an issue of concern, or should the anticipated composition of the glass with the addition of material from salt waste processing be modified significantly from the current projections, either due to changes in sludge batch preparation or changes in the composition or volume of SCIX and SWPF material.

Fox, K.; Miller, D.; Koopman, D.

2011-04-26T23:59:59.000Z

146

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION KT07-SERIES GLASS COMPOSITIONS  

Science Conference Proceedings (OSTI)

This report is the third in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility is also considered in the study. The KT07-series glasses were selected to evaluate any potential impacts of noble metals on their properties and performance. The glasses characterized thus far for the SCIX study have not included noble metals since they are not typically tracked in sludge batch composition projections. However, noble metals can act as nucleation sites in glass melts, leading to enhanced crystallization. This crystallization can potentially influence the properties and performance of the glass, such as chemical durability, viscosity, and liquidus temperature. The noble metals Ag, Pd, Rh, and Ru were added to the KT07-series glasses in concentrations based on recent measurements of Sludge Batch 6, which was considered to contain a high concentration of noble metals. The KT04-series glasses were used as the baseline compositions. After fabrication, the glasses were characterized to determine their homogeneity, chemical composition, durability, and viscosity. Liquidus temperature measurements are also underway but were not complete at the time of this report. The liquidus temperature results for the KT07-series glasses, along with several of the earlier glasses in the SCIX study, will be documented separately. All of the KT07-series glasses, both quenched and slowly cooled, were found to be amorphous by X-ray diffraction. Chemical composition measurements showed that all of the glasses met their targeted compositions. The Product Consistency Test (PCT) results showed that all of the glasses had chemical durabilities that were far better than that of the Environmental Assessment benchmark glass. The measured PCT responses were well predicted by the current DWPF Product Composition Control System (PCCS) durability models. The measured viscosity values for each KT07-series glass were acceptable for DWPF processing and were well predicted by the current PCCS model. Overall, the results show that the inclusion of relatively high concentrations of noble metals (in terms of expected values for a DWPF sludge batch) had no significant impact on the properties and performance of these glass compositions. There were no significant differences in the measured properties when compared to those of the KT04-series glasses, which did not contain noble metals. Liquidus temperature measurements are still underway and there may be an impact of the noble metals on those measurements. However, no adverse effects were noted in terms of crystallization after slow cooling. At the completion of these studies, all of the data generated will be reviewed with regard to the applicability of the DWPF PCCS models and recommendations will be made as to whether the validation ranges of the current models can be extended, or whether some or all of the models need to be refit to allow for the incorporation of the SCIX streams. As changes are made to the projected sludge compositions and the volume of the SCIX material, additional evaluations should be performed.

Fox, K.; Edwards, T.

2011-01-12T23:59:59.000Z

147

Salt-Zeolite Ion Exchange Equilibrium Studies for Complete Set of Fission Products in Molten LiCl-KCl  

SciTech Connect

This paper presents results on LiCl-KCl based molten salts/zeolite-A contact experiments and the associated equilibrium ion exchange model. Experiments examine the contact behaviors of various ternary salts (LiCl-KCl-YCl3, LiCl-KCl-LaCl3, and LiCl-KCl-PrCl3) and quaternary salts (LiCl-KCl-CsCl-NdCl3 and LiCl-KCl-CsCl-SrCl2) with the zeolite-A. The developed equilibrium model assumes that there are ion exchange and occlusion sites, both of which are in equilibrium with the molten salt phase. A systematic approach in estimating total occlusion capacity of the zeolite-A is developed. The parameters of the model, including the total occlusion capacity of the zeolite-A, were determined from fitting experimental data collected via multiple independent studies including the ones reported in this paper. Experiments involving ternary salts were used for estimating the parameters of the model, while those involving quaternary salts were used to validate the model.

Tae-Sic Yoo; Steven M. Frank; Michael F. Simpson; Paula A. Hahn; Terry J. Battisti; Supathorn Phongikaroon

2010-09-01T23:59:59.000Z

148

Method of uranium reclamation from aqueous systems by reactive ion exchange. [US DOE patent application; anion exchange resin of copolymerized divinyl-benzene and styrene having quarternary ammonium groups and bicarbonate ligands  

DOE Patents (OSTI)

A reactive ion exchange method for separation and recovery of values of uranium, neptunium, plutonium, or americium from substantially neutral aqueous systems of said metals comprises contacting said system with an effective amount of a basic anion exchange resin of copolymerized divinyl-benzene and styrene having quarternary ammonium groups and bicarbonate ligands to achieve nearly 100% sorption of said actinyl ion onto said resin and an aqueous system practically free of said actinyl ions. The method is operational over an extensive range of concentrations from about 10/sup -6/ M to 1.0 M actinyl ion and a pH range of about 4 to 7. The method has particulr application to treatment of waste streams from Purex-type nuclear fuel reprocessing facilities and hydrometallurgical processes involving U, Np, P, or Am.

Maya, L.

1981-11-05T23:59:59.000Z

149

Development of ECR ion source and LEBT technology for RIA  

DOE Green Energy (OSTI)

The Rare Isotope Accelerator (RIA) Linac driver requires a great variety of high charge state ion beams with up to a magnitude higher intensity than currently achievable for the heaviest masses. The goal of the RIA injector R&D program for VENUS is the reliable production of intense medium charge state ion beams, e.g., 8 puA (particle mu A) of U29+. Therefore, the superconducting ECR ion source VENUS has been designed from the beginning for optimum operation at 28 GHz at high power (10 kW). In addition, a high intensity Low Energy Beam Transport, LEBT, that was developed to analyze and transport these multiply-charged, space charge dominated beams. During the last year VENUS was commissioned at 18 GHz and preparations for 28 GHz operation continued. Tests with various gases and recently metals have been performed with up to 2000 W of 18 GHz RF power. Promising performance has been measured in those preliminary beam tests. For example, 180 p mu A of O6+, 15 p mu A of Ar12+, 7.5 puA of X e20+ and 4puA of Bi24+ were produced in the early commissioning phase, ranking VENUS among the currently highest performance 18 GHz ECR ion sources. In FY04 a 10 kW 28 gyrotron system will be added, which will enable VENUS to reach full performance. The emittance of the beams produced at 18 GHz was measured with a two axis emittance scanner developed with earlier RIA R&D funds.

Leitner, Daniela; Lyneis, Claude M.; Abbott, Steven R.; Dwinell, Roger D.; Leitner, Matthaeus; Silver, Charles S.; Taylor, Clyde E.

2004-08-10T23:59:59.000Z

150

Core-ion temperature measurement of the ADITYA tokamak using passive charge exchange neutral particle energy analyzer  

SciTech Connect

Core-ion temperature measurements have been carried out by the energy analysis of passive charge exchange (CX) neutrals escaping out of the ADITYA tokamak plasma (minor radius, a= 25 cm and major radius, R= 75 cm) using a 45 Degree-Sign parallel plate electrostatic energy analyzer. The neutral particle analyzer (NPA) uses a gas cell configuration for re-ionizing the CX-neutrals and channel electron multipliers (CEMs) as detectors. Energy calibration of the NPA has been carried out using ion-source and {Delta}E/E of high-energy channel has been found to be {approx}10%. Low signal to noise ratio (SNR) due to VUV reflections on the CEMs was identified during the operation of the NPA with ADITYA plasma discharges. This problem was rectified by upgrading the system by incorporating the additional components and arrangements to suppress VUV radiations and improve its VUV rejection capabilities. The noise rejection capability of the NPA was experimentally confirmed using a standard UV-source and also during the plasma discharges to get an adequate SNR (>30) at the energy channels. Core-ion temperature T{sub i}(0) during flattop of the plasma current has been measured to be up to 150 eV during ohmically heated plasma discharges which is nearly 40% of the average core-electron temperature (typically T{sub e}(0) {approx} 400 eV). The present paper describes the principle of tokamak ion temperature measurement, NPA's design, development, and calibration along with the modifications carried out for minimizing the interference of plasma radiations in the CX-spectrum. Performance of the NPA during plasma discharges and experimental results on the measurement of ion-temperature have also been reported here.

Pandya, Santosh P.; Ajay, Kumar; Mishra, Priyanka; Dhingra, Rajani D.; Govindarajan, J. [Institute for Plasma Research, Bhat, Gandhinagar 382 428, Gujarat (India)

2013-02-15T23:59:59.000Z

151

Developments in lithium-ion battery technology in the Peoples Republic of China.  

SciTech Connect

Argonne National Laboratory prepared this report, under the sponsorship of the Office of Vehicle Technologies (OVT) of the U.S. Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy, for the Vehicles Technologies Team. The information in the report is based on the author's visit to Beijing; Tianjin; and Shanghai, China, to meet with representatives from several organizations (listed in Appendix A) developing and manufacturing lithium-ion battery technology for cell phones and electronics, electric bikes, and electric and hybrid vehicle applications. The purpose of the visit was to assess the status of lithium-ion battery technology in China and to determine if lithium-ion batteries produced in China are available for benchmarking in the United States. With benchmarking, DOE and the U.S. battery development industry would be able to understand the status of the battery technology, which would enable the industry to formulate a long-term research and development program. This report also describes the state of lithium-ion battery technology in the United States, provides information on joint ventures, and includes information on government incentives and policies in the Peoples Republic of China (PRC).

Patil, P. G.; Energy Systems

2008-02-28T23:59:59.000Z

152

Developments in lithium-ion battery technology in the Peoples Republic of China.  

DOE Green Energy (OSTI)

Argonne National Laboratory prepared this report, under the sponsorship of the Office of Vehicle Technologies (OVT) of the U.S. Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy, for the Vehicles Technologies Team. The information in the report is based on the author's visit to Beijing; Tianjin; and Shanghai, China, to meet with representatives from several organizations (listed in Appendix A) developing and manufacturing lithium-ion battery technology for cell phones and electronics, electric bikes, and electric and hybrid vehicle applications. The purpose of the visit was to assess the status of lithium-ion battery technology in China and to determine if lithium-ion batteries produced in China are available for benchmarking in the United States. With benchmarking, DOE and the U.S. battery development industry would be able to understand the status of the battery technology, which would enable the industry to formulate a long-term research and development program. This report also describes the state of lithium-ion battery technology in the United States, provides information on joint ventures, and includes information on government incentives and policies in the Peoples Republic of China (PRC).

Patil, P. G.; Energy Systems

2008-02-28T23:59:59.000Z

153

Status report - advanced heat exchanger technology for a CCGT power generation system  

Science Conference Proceedings (OSTI)

This report gives laboratory and field test results of a specially designed heat exchanger for coal-fired power plants. The system incorporates an atmospheric fluidized bed and combustion system for pulverized coal. The heat exchanger was made from both metallic and ceramic materials.

Wright, D.E.; Tignac, L.L.

1982-01-01T23:59:59.000Z

154

Repair Technology for Degraded Pressure Vessel and Heat Exchanger Shells: RRAC Task 91  

Science Conference Proceedings (OSTI)

The ability to repair pressure vessels and heat exchangers offers utilities significant cost savings compared to replacing these components. This is especially the case if outage time and loss of production are factored into the cost of replacement. This guide provides a review of various current and proposed repair methods that can be used for pressure vessel and heat exchanger applications.

2002-12-02T23:59:59.000Z

155

Removal of arsenic and other contaminants from storm run-off water by flotation, filtration, adsorption and ion exchange. Technical report, September-November 1984  

Science Conference Proceedings (OSTI)

The feasibility of removing soluble arsenic (+5) from storm runoff water by dissolved air flotation (Supracell), dissolved air flotation and sand filtration combination (Sandfloat), granular carbon adsorption, and ion exchange processes was experimentally demonstrated. The best pretreatment unit was Sandfloat clarifier consisting of both flotation and filtration. Sandfloat clarifier consistently removed over 90% of arsenic, turbidity, and color, and over 50% of chemical oxygen demand and oil and grease. Using a Sandfloat or a Supracell for pretreatment, and then using either carbon adsorption or ion exchange for second-stage treatment, the soluble arsenic in the storm water can be totally removed.

Krofta, M.; Wang, L.K.

1984-11-01T23:59:59.000Z

156

Advanced technology thermal energy storage and heat exchange systems for solar applications: a survey of current research  

DOE Green Energy (OSTI)

A survey is presented of the advanced research and development projects underway in the U.S. in all of the known media and methods for storing and transferring thermal energy in solar applications. The technologies reviewed include innovative heat exchange and heat transport methods, advanced sensible heat storage in water, rocks, earth and combinations of these for both short term and annual storage, phase change materials, and reversible chemical reactions. This survey is presented in a structure of categories and subcategories of thermal energy storage and heat transfer technology. Within a given subcategory the project descriptions are listed under the name of the organizations conducting the work, arranged in alphabetical order.

Michaels, A. I.

1978-01-01T23:59:59.000Z

157

Evaluation of a Primary Amine-Functionalized Ion-Exchange Resin for CO{sub 2} Capture  

SciTech Connect

A primary amine-functionalized polymeric ion-exchange resin (Lewatit VP OC 1065, Lanxess) was evaluated for use in CO{sub 2} capture applications. The polymeric resin was characterized by SEM, DRIFTS-IR, N{sub 2} adsorption isotherms, and packed bed sorption measurements to determine some of the characteristic properties of the resin. Capture capacities ranging from 1.85 to 1.15 mol CO{sub 2}/kg sorbent were obtained in a packed bed reactor exposed to 10 vol % CO{sub 2} in N{sub 2} at adsorption temperatures ranging from 30 to 70 °C. The capture capacity of the resin was stable over 18 adsorption/regeneration cycles. The resin was evaluated through thermogravimetric analysis to have a low moisture adsorption (1.5 mol H{sub 2}O/kg sorbent). It is possible to completely regenerate the resin under 1 atm of CO{sub 2} at 200 °C.

Alesi, W. Richard; Kitchin, John R.

2012-05-16T23:59:59.000Z

158

Use of inorganic ion exchangers in the neutron activation determination of arsenic in coal ash  

SciTech Connect

Irradiated coal ssh samples were fused with NaOH, dissolved, and acidified so that the resulting solution was 7M in HNO/sub 3/. From this medium, carrier-free amounts of arsentc were retained on colunms of acid aluminum oxide or hydrated manganese dioxide. The latter is preferred because;t hss a greater load;ng capacity. Low-temperature sshes of six lllinois coals hsve been analyzed with both exchangers. Results compare well with those obtained by an acid dissolution-distillation separation method. (auth)

Santoliquido, P.M.

1973-12-19T23:59:59.000Z

159

Investigation of ETA Interactions in Mixed Bed Ion Exchange Systems -- Phase 1  

Science Conference Proceedings (OSTI)

Pressurized water reactor (PWR) nuclear power plants use amine pH control agents in the secondary steam cycle. The pH is elevated to reduce corrosion potential induced by hydronium ions throughout the steam cycle. Ethanolamine (ETA) is a popular pH control agent currently used in many plants. However, when ETA is used, some plants have reported fouling of the anion resin resulting in reduced service life. This report presents preliminary analyses of the interaction chemistry of current fouling/degradatio...

2002-08-15T23:59:59.000Z

160

Program on Technology Innovation: Geothermal Energy Harvesting from a Closed-Loop Single-Well Heat Exchanger Technology  

Science Conference Proceedings (OSTI)

From the perspective of reducing the cost of an enhanced geothermal system (EGS) that requires injection and productions wells, a single-wellbore configuration could be a cost-efficient solution for larger geothermal plants that are constrained by water demand. The applicability of a single-wellbore configuration depends on the ability to have high thermal conductivity with the heat exchange from the rock system surrounding it. The result of the Polaris award work suggests that a numerical model is neede...

2010-11-30T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
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161

Moving fiction : novelists, technology designers, and the art of the exchange  

E-Print Network (OSTI)

How can concepts from literature and technology design combine to create new forms of storytelling on mobile devices? This paper examines the theory and practice of bringing literary techniques into mobile technology design. ...

Epstein, Michael, 1969-

2004-01-01T23:59:59.000Z

162

Transport of ions in a segmented linear Paul trap in printed-circuit-board technology  

E-Print Network (OSTI)

We describe the construction and operation of a segmented linear Paul trap, fabricated in printed-circuit-board technology with an electrode segment width of 500 microns. We prove the applicability of this technology to reliable ion trapping and report the observation of Doppler cooled ion crystals of Ca-40 with this kind of traps. Measured trap frequencies agree with numerical simulations at the level of a few percent from which we infer a high fabrication accuracy of the segmented trap. To demonstrate its usefulness and versatility for trapped ion experiments we study the fast transport of a single ion. Our experimental results show a success rate of 99.0(1)% for a transport distance of 2x2mm in a round-trip time of T=20us, which corresponds to 4 axial oscillations only. We theoretically and experimentally investigate the excitation of oscillations caused by fast ion transports with error-function voltage ramps: For a slightly slower transport (a round-trip shuttle within T=30us) we observe non-adiabatic motional excitation of 0.89(15)meV.

G. Huber; T. Deuschle; W. Schnitzler; R. Reichle; K. Singer; F. Schmidt-Kaler

2007-11-19T23:59:59.000Z

163

Summary - Small Column Ion Exchange (SCIX)Technology at the SRS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SC deploy Specif exchan CST) CST, a (mono and so (RMF) maturi readin design moving The pu techni projec Site: S roject: S E Report Date: F ited States Sma Why DOE e SCIX System...

164

Integration of Ion Transport Membrane Technology with Oxy-Combustion Power Generation Systems  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) in conjunction with Air Products and Chemicals, Inc., (AP) has reviewed oxy-combustion, a methodology to burn coal using oxygen rather than air to aid in removing carbon by producing a more concentrated stream of carbon dioxide (CO2) for remediation, which reduces the cost and energy required to do so. This report discusses the ion transport membrane (ITM), a technology developed by AP under a Cooperative Agreement with the United States ...

2013-09-17T23:59:59.000Z

165

Significance of Pressurized Solid Oxide Fuel Cell Hybrid Technology to Ion Transport Membranes  

Science Conference Proceedings (OSTI)

This report documents the research, history, and demonstration of pressurized solid oxide fuel cells (PSOFC)-gas turbine (GT) hybrid systems and compares and contrasts their evolution with ion transport membranes (ITM). There exists a wealth of available documentation on the PSOFC hybrid technology including multiple Electric Power Research Institute (EPRI) reports documenting these systems. This report incorporates the findings of the EPRI reports, conference proceedings, journal articles, ...

2012-12-20T23:59:59.000Z

166

U.S.-MEXICO TECHNOLOGY TRANSFER; BILATERAL TECHNICAL EXCHANGES FOR SUSTAINABLE ECONOMIC GROWTH IN THE BORDER REGION  

SciTech Connect

The U.S. Department of Energy (DOE) maintains a strong commitment to transfer the results of its science and technology programs to the private sector. The intent is to apply innovative and sometimes advanced technologies to address needs while simultaneously stimulating new commercial business opportunities. Such focused “technology transfer” was evident in the late 1990s as the results of DOE investments in environmental management technology development led to new tools for characterizing and remediating contaminated sites as well as handling and minimizing the generation of hazardous wastes. The Department’s Office of Environmental Management was attempting to reduce the cost, accelerate the schedule, and improve the efficacy of clean-up efforts in the nuclear weapons complex. It recognized that resulting technologies had broader world market applications and that their commercialization would further reduce costs and facilitate deployment of improved technology at DOE sites. DOE’s Albuquerque Operations Office (now part of the National Nuclear Security Administration) began in 1995 to build the foundation for a technology exchange program with Mexico. Initial sponsorship for this work was provided by the Department’s Office of Environmental Management. As part of this effort, Applied Sciences Laboratory, Inc. (ASL) was contracted by the DOE Albuquerque office to identify Mexico’s priority environmental management needs, identify and evaluate DOE-sponsored technologies as potential solutions for those needs, and coordinate these opportunities with decision makers from Mexico’s federal government. That work led to an improved understanding of many key environmental challenges that Mexico faces and the many opportunities to apply DOE’s technologies to help resolve them. The above results constituted, in large part, the foundation for an initial DOE-funded program to apply the Department’s technology base to help address some of Mexico’s challenging environmental issues. The results also brought focus to the potential contributions that DOE’s science and technology could make for solving the many difficult, multi-generational problems faced by hundreds of bi-national communities along the 2,000-mile shared border of the United States and Mexico. Efforts to address these U.S.-Mexico border issues were initially sponsored by the DOE’s Albuquerque and Carlsbad offices. In subsequent years, the U.S. Congress directed appropriations to DOE’s Carlsbad office to address public health, safety and security issues prevalent within U.S.-Mexico border communities. With ASL’s assistance, DOE’s Albuquerque office developed contacts and formed partnerships with interested U.S and Mexican government, academic, and commercial organizations. Border industries, industrial effluents, and public health conditions were evaluated and documented. Relevant technologies were then matched to environmental problem sets along the border. Several technologies that were identified and subsequently supported by this effort are now operational in a number of U.S.-Mexico border communities, several communities within Mexico’s interior states, and in other parts of Latin America. As a result, some serious public health threats within these communities caused by exposure to toxic airborne pollutants have been reduced. During this time, DOE’s Carlsbad office hosted a bilateral conference to establish a cross-border consensus on what should be done on the basis of these earlier investigative efforts. Participating border region stakeholders set an agenda for technical collaborations. This agenda was supported by several Members of Congress who provided appropriations and directed DOE’s Carlsbad office to initiate technology demonstration projects. During the following two years, more than 12 private-sector and DOE-sponsored technologies were demonstrated in partnership with numerous border community stakeholders. All technologies were well received and their effectiveness at addressing health, safety and security issues w

Jimenez, Richard, D., Dr.

2007-10-01T23:59:59.000Z

167

The synthesis and characterization of Zirconium p-Phenylbis(phosphonate) Phosphate and other Zirconium Arylbis(phosphonates) for the application of ion exchange  

E-Print Network (OSTI)

Layered metal phosphonates of general formula Zr(03PR)2, where R = an alkyl or aryl organic radical, have been known since 1978. In the early 1980's, these material systems were extended to include pillared phosphonate compounds, of general formula Zr(03PRP03). Mixed component systems were also investigated, of general formula Zr(03PRP03)x(03POH)2-2x, in which the orthophosphate group served as a spacer between pillaring groups to alleviate crowding and introduce tailored porosity. These materials showed promise for many uses, of greatest interest were of catalysis and ion exchange. Zirconium p-Phenylbis(phosphonate) Phosphate was synthesized by several routes to investigate the inherent structural characteristics as they applied to the crystallinity and ion exchange properties. This class of material was found to possess a crystal structure based on that of a-ZrP, as well as a different conformation in which the phosphonate and phosphate groups bond to zirconium in a different manner. These compounds were also found to be able to incorporate only a small amount of the spacing groups before the introduced defects become too great in which the layer growth terminates. The aromatic component of the pillar was further functionalized with a sulfonic acid group to enhance the ion exchange capacity for several cations. The synthetic routes were further adapted to synthesize Zirconium p,p'-Biphenylbis(phosphonate) Phosphate and Zirconium p,p"-Terphenylbis (phosphonate) Phosphate, in which compounds with a fair amount of crystallinity resulted.

Bellinghausen, Paul Christian

1995-01-01T23:59:59.000Z

168

Demonstration Initiative for a Grid Support Energy Storage System using Li-ion Technology: Phase I Report  

Science Conference Proceedings (OSTI)

This report documents a research project to scope and implement an initiative to catalyze the early market deployment of a utility-scale electric energy storage system, a project that leverages Lithium-ion (Li-ion) battery technology being globally scaled to serve emerging electric and hybrid electric vehicle markets. The impressive scale of Li-ion battery production and R&D is driving a trend in cost reduction and performance improvements that make this technology attractive for certain grid storage app...

2012-07-31T23:59:59.000Z

169

Small Column Ion Exchange  

for Hanford •Hanford baseline changed to sRF 2007 •MSP was born • High interest in sRF for SRS • CD-0 approved •Project suspended by DOE due to WD 2008 2009

170

Ion Removal  

INL’s ion removal technology leverages the ability of phosphazene polymers discriminate between water and metal ions, which allows water to pass ...

171

Spray solar cell research: CdS/Cu/sub 2/S cells by ion exchange-CSD. Quarterly report No. 1, October 1-December 31, 1979  

DOE Green Energy (OSTI)

A study of the applicability of the Chemical Spray Deposition-Ion Exchange Technique to the formation of high efficiency, low cost Cu/sub 2/S/CdS solar cells has been undertaken. A Chemical Spray Deposition (CSD) apparatus and an Ion Exchange annealing station have been designed, and construction of these facilities is nearing completion. The object is to form films of CdO and Cu/sub 2/O by spraying appropriate solutions onto a heated substrate, and then to convert these oxides into CdS and Cu/sub 2/S through ion exchange by annealing in H/sub 2/S vapor. Such films will then be the basis for fabricating Cu/sub 2/S/CdS solar cells. Temporary spray and annealing equipment has been used while the permanent facilities are completed. CdO oxide films with thicknesses of 0.1 to 0.5 microns have been deposited. There is preferred crystal growth in the (111) direction on glass substrates. However, on SnO/sub 2/ coated glass, a (200) preferred orientation is obvious. The crystallite size is 5 to 10 microns, and porous spheres 10 to 20 microns in diameter are visible on the surface. After annealing in H/sub 2/S, the films are converted to CdS, but the reaction is not complete after 2 h. The optical transmission is now characteristic of CdS. The grain size was found to increase to the 100 micron range, but the surface spheres remain. A mixture of CuO and Cu/sub 2/O was formed in a preliminary spraying. The film converted to the digenite and djurleite phases of copper sulfide. Much improved control of the deposition process will result when the permanent facilities come on-line.

Maruska, H.P.; Young, A.R. II

1979-01-01T23:59:59.000Z

172

Performance evaluation of 24 ion exchange materials for removing cesium and strontium from actual and simulated N-Reactor storage basin water  

Science Conference Proceedings (OSTI)

This report describes the evaluation of 24 organic and inorganic ion exchange materials for removing cesium and strontium from actual and simulated waters from the 100 Area 105 N-Reactor fuel storage basin. The data described in this report can be applied for developing and evaluating ion exchange pre-treatment process flowsheets. Cesium and strontium batch distribution ratios (K{sub d}`s), decontamination factors (DF), and material loadings (mmol g{sup -1}) are compared as a function of ion exchange material and initial cesium concentration. The actual and simulated N-Basin waters contain relatively low levels of aluminum, barium, calcium, potassium, and magnesium (ranging from 8.33E-04 to 6.40E-05 M), with slightly higher levels of boron (6.63E-03 M) and sodium (1.62E-03 M). The {sup 137}Cs level is 1.74E-06 Ci L-{sup 1} which corresponds to approximately 4.87E-10 M Cs. The initial Na/Cs ratio was 3.33E+06. The concentration of total strontium is 4.45E-06 M, while the {sup 90}Sr radioactive component was measured to be 6.13E-06 Ci L{sup -1}. Simulant tests were conducted by contacting 0.067 g or each ion exchange material with approximately 100 mL of either the actual or simulated N-Basin water. The simulants contained variable initial cesium concentrations ranging from 1.00E-04 to 2.57E- 10 M Cs while all other components were held constant. For all materials, the average cesium K{sub d} was independent of cesium concentration below approximately 1.0E-06 M. Above this level, the average cesium K{sub d} values decreased significantly. Cesium K{sub d} values exceeding 1.0E+07 mL g{sup -1} were measured in the simulated N-Basin water. However, when measured in the actual N-Basin water the values were several orders of magnitude lower, with a maximum of 1.24E+05 mL g{sup -1} observed.

Brown, G.N.; Carson, K.J.; DesChane, J.R.; Elovich, R.J.

1997-09-01T23:59:59.000Z

173

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT05- AND KT06-SERIES GLASS COMPOSITIONS  

SciTech Connect

This report is the second in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. The KT05-series glasses were selected, fabricated, and characterized to further study glass compositions where iron titanate crystals had been previously found to form. The intent was to better understand the mechanisms and compositions that favored the formation of crystals containing titanium. Formation of these crystalline phases was confirmed. Increased Na{sub 2}O concentrations had little if any impact on reducing the propensity for the formation of the iron titanate crystalline phases. Other physical properties of these glasses were not measured since the intent was to focus on crystallization. Additional studies are suggested to investigate the potential impacts of Al{sub 2}O{sub 3} and K{sub 2}O on crystallization in glasses with high TiO{sub 2} concentrations. The KT06-series glasses were selected, fabricated, and characterized to further study glass compositions that, while broader than the current projections for DWPF feeds with SCIX material, are potential candidates for future processing (i.e., the compositions are acceptable for processing by the Product Composition Control System (PCCS) with the exception of the current TiO{sub 2} concentration constraint). The chemical compositions of these glasses matched well with the target values. The chemical durabilities of all the glasses were acceptable relative to the Environmental Assessment (EA) benchmark. Minor crystallization was identified in some of the slowly cooled glasses, although this crystallization did not impact chemical durability. Several of the KT06-series compositions had durability values that, while acceptable, were not accurately predicted by the current durability models. It was shown that for these high TiO{sub 2} concentration glasses, relatively high Fe{sub 2}O{sub 3} concentrations combined with relatively high Al{sub 2}O{sub 3} concentrations led to durabilities that were unpredictable. Several of the KT06-series glasses also had measured viscosity values that were not well predicted by the current model. A statistical partitioning routine showed that the measured viscosities became unpredictable by the current model when the Fe{sub 2}O{sub 3} concentration in the glasses was less than about 8.2 wt % at the elevated TiO{sub 2} concentrations. The current durability and viscosity models will have to be further evaluated should compositions in these regions become necessary for DWPF processing. Overall, the results presented for the KT06-series glasses show that TiO{sub 2} from the SCIX streams can be incorporated into DWPF-type glasses at concentrations of 6 wt % (in glass) without any detrimental impacts on crystallization or chemical durability that are of practical importance. The measured values for chemical durability and viscosity were acceptable for processing; however, not all of the values were predictable by the current PCCS models. Since the compositions selected for the KT06-series glasses were outside the current projections for DWPF processing with the SCIX streams (in terms of waste components other than TiO{sub 2}), these results help identify compositional regions that, if necessary for processing, would require modifications to the current models. Additional experiments are currently underway. Once completed, all of the measured data will be reviewed and compared to model predictions to better determine whether the validation range of the DWPF process control models can be confidently extended, or whether refitting of the models will be necessary.

Fox, K.; Edwards, T.

2011-01-03T23:59:59.000Z

174

Ion exchange separation of plutonium and gallium (1) resource and inventory requirements, (2) waste, emissions, and effluent, and (3) facility size  

SciTech Connect

The following report summarizes an effort intended to estimate within an order-of-magnitude the (1) resource and inventory requirements, (2) waste, emissions, and effluent amounts, and (3) facility size, for ion exchange (IX) separation of plutonium and gallium. This analysis is based upon processing 3.5 MT-Pu/yr. The technical basis for this summary is detailed in a separate document, {open_quotes}Preconceptual Design for Separation of Plutonium and Gallium by Ion Exchange{close_quotes}. The material balances of this separate document are based strictly on stoichiometric amounts rather than details of actual operating experience, in order to avoid classification as Unclassified Controlled Nuclear Information. This approximation neglets the thermodynamics and kinetics which can significantly impact the amount of reagents required. Consequently, the material resource requirements and waste amounts presented here would normally be considered minimums for processing 3.5 MT-Pu/yr; however, the author has compared the inventory estimates presented with that of an actual operating facility and found them similar. Additionally, the facility floor space presented here is based upon actual plutonium processing systems and can be considered a nominal estimate.

DeMuth, S.

1997-09-30T23:59:59.000Z

175

Development of Pillared M(IV) Phosphate Phosphonate Inorganic Organic Hybrid Ion Exchange Materials for Applications in Separations found in the Nuclear Fuel Cycle  

E-Print Network (OSTI)

This dissertation focuses on key intergroup and intragroup separations found in the back end of the nuclear fuel cycle, specifically americium from lanthanides and americium from other actinides, most importantly americium from curium. Our goal is to implement a liquid-solid separation process to reduce waste and risk of contamination by the development of metal(IV) phosphate phosphonate inorganic organic hybrid ion exchange materials with the ideal formula of M(O6P2C6H4)0.5(O3POA) * nH2O, where M = Zr or Sn, A = H or Na. These materials have previously shown to have high affinity for Ln, this work will expand on the previous studies and provide methods for the above target separation, exploiting oxidation state and ion charge to drive the separation process. The optimum hydrothermal reaction conditions were determined by adjusting parameters such as reaction temperature and time, as well as the phosphonate to phosphate (pillarto-spacer) ligands ratio. Following these results four bulk syntheses were performed and their ion exchange properties were thoroughly examined. Techniques such as inductively coupled mass spectrometry and liquid scintillation counting were used to determine the affinity of the materials towards Na+, Cs+, Ca2+, Sr2+, Ni2+, Nd3+, Sm3+, Ho3+, Yb3+, NpO2+, Pu4+, PuO22+, Am3+, AmO2+, and Cm3+. Separation factors in the thousands have been observed for intergroup separations of the Ln from the alkali, alkaline earth, and low valent transition metals. A new method for Am oxidation was developed, which employed Na2S2O8 as the oxidizing agent and Ca(OCl)2 as the stabilizing agent for AmO2+ synthesis. Separation factors of 30-60 for Nd3+ and Eu3+ from AmO2+, as well as 20 for Cm3+ from AmO2+ were observed at pH 2. The work herein shows that a liquid-solid separation can be carried out for these difficult separations by means of oxidation and ion exchange.

Burns, Jonathan

2012-12-01T23:59:59.000Z

176

Synthesis, characterization, and ion exchange properties of a sodium nonatitanate, Na4Ti9O20.xH2O  

E-Print Network (OSTI)

During the Cold War, the Hanford Weapons Site in Richland, Washington, produced weapons grade plutonium which first needed to be separated from the other products using the PUREX process (plutonium and uranium extraction). As a by product of this process, millions of cubic meters of highly acidic radioactive waste were produced which are now stored in million gallon tanks at the Hanford site. Over the years, some tanks have been known to leak and some are even in danger of exploding. Because of these problems, the waste needs to be removed from these tanks and given permanent, safe storage. The purpose of this research is to produce a more efficient ion exchanger to separate the highly radioactive isotopes (9oSr, 137 Cs and transuranics) from the large quantities of inert salts. The smaller volume of high level waste produced can then be vitrified in glass and stored, while the low level waste can be poured into less expensive cement and glass. In this work, different parameters of the synthesis of the sodium nonatitanate ion exchanger, Na4Ti9O2OoxH20, such as the Na and Ti reactants, the heating time, oven temperature, Na:Ti mole ratio, and heating method, were altered and their effects on Sr2' ion exchange selectivity were examined. For example, the heating time was varied from I day to 2, 3, 7, and 30 days. Although the crystallinity remained the same from the I day to the 2 day sample, as the heating time further increased, the crystallinity improved. The most Sr selective material was the 2 day sample with a Kd (distribution coefficient) of 1.22x 106 MI/g in O.lM Na/ O.OOIM Sr solution. The Kd's steadily decreased as the sample crystallinity increased with a maximum Kd of only 1.6OxlO5 in O.OIM Na/ O.OO I M Sr solution after a heating time of 30 days. However, in a simulated waste such as NCAW, the 2 day sample gave a Kd of only 1.44x 105 MI/g, while the I day sample gave a value of 2.50x 105 . This indicates that the nonatitanate synthesis needs to be uniquely designed to optimize Sr 2+ removal in each specific type of waste to be remediated.

Graziano, Gina Marie

1998-01-01T23:59:59.000Z

177

Graphene-Polypyrrole Nanocomposite as a Highly Efficient and Low Cost Electrically Switched Ion Exchanger for Removing ClO4- from Wastewater  

Science Conference Proceedings (OSTI)

Perchlorate (ClO4-) contamination is now recognized as a widespread concern affecting many water utilities. In this report, graphene is employed as the scaffold to synthesize novel graphene-polypyrrole nanocomposite, which is demonstrated as excellent electrically switched ion exchanger for perchlorate removal. Scanning electron microscopy (SEM) and electrochemical measurements showed that the 3D nanostructured graphene/Ppy nanocomposite exhibited the significantly improved uptake capacity for ClO4- compared with Ppy film. X-ray photoelectron spectroscopy (XPS) confirmed the uptake and release process of ClO4- in graphene/Ppy nanocomposite. In addition, the presence of graphene substrate resulted in high stability of graphene/Ppy nanocomposite during potential cycling. The present work provides a promising method for large scale water treatment.

Zhang, Sheng; Shao, Yuyan; Liu, Jun; Aksay, Iihan A.; Lin, Yuehe

2011-10-10T23:59:59.000Z

178

Advanced Technology Development Program for Lithium-Ion Batteries: Gen 2 Performance Evaluation Final Report  

Science Conference Proceedings (OSTI)

The Advanced Technology Development Program has completed performance testing of the second generation of lithium-ion cells (i.e., Gen 2 cells). The 18650-size Gen 2 cells, with a baseline and variant chemistry, were distributed over a matrix consisting of three states-of-charge (SOCs) (60, 80, and 100% SOC), four temperatures (25, 35, 45, and 55°C), and three life tests (calendar-, cycle-, and accelerated-life). The calendar- and accelerated-life cells were clamped at an open-circuit voltage corresponding to the designated SOC and were subjected to a once-per-day pulse profile. The cycle-life cells were continuously pulsed using a profile that was centered around 60% SOC. Life testing was interrupted every four weeks for reference performance tests (RPTs), which were used to quantify changes in cell degradation as a function of aging. The RPTs generally consisted of C1/1 and C1/25 static capacity tests, a low-current hybrid pulse power characterization test, and electrochemical impedance spectroscopy. The rate of cell degradation generally increased with increasing test temperature, and SOC. It was also usually slowest for the calendar-life cells and fastest for the accelerated-life cells. Detailed capacity-, power-, and impedance-based performance results are reported.

Jon P. Christophersen; Ira Bloom; Edward V. Thomas; Kevin L. Gering; Gary L. Henriksen; Vincent S. Battaglia; David Howell

2006-07-01T23:59:59.000Z

179

Cycle Life Studies of Advanced Technology Development Program Gen 1 Lithium Ion Batteries  

SciTech Connect

This report presents the test results of a special calendar-life test conducted on 18650-size, prototype, lithium-ion battery cells developed to establish a baseline chemistry and performance for the Advanced Technology Development Program. As part of electrical performance testing, a new calendar-life test protocol was used. The test consisted of a once-per-day discharge and charge pulse designed to have minimal impact on the cell yet establish the performance of the cell over a period of time such that the calendar life of the cell could be determined. The calendar life test matrix included two states of charge (i.e., 60 and 80%) and four temperatures (40, 50, 60, and 70°C). Discharge and regen resistances were calculated from the test data. Results indicate that both discharge and regen resistance increased nonlinearly as a function of the test time. The magnitude of the discharge and regen resistance depended on the temperature and state of charge at which the test was conducted. The calculated discharge and regen resistances were then used to develop empirical models that may be useful to predict the calendar life or the cells.

Wright, Randy Ben; Motloch, Chester George

2001-03-01T23:59:59.000Z

180

Calendar Life Studies of Advanced Technology Development Program Gen 1 Lithium Ion Batteries  

SciTech Connect

This report presents the test results of a special calendar-life test conducted on 18650-size, prototype, lithium-ion battery cells developed to establish a baseline chemistry and performance for the Advanced Technology Development Program. As part of electrical performance testing, a new calendar-life test protocol was used. The test consisted of a once-per-day discharge and charge pulse designed to have minimal impact on the cell yet establish the performance of the cell over a period of time such that the calendar life of the cell could be determined. The calendar life test matrix included two states of charge (i.e., 60 and 80%) and four temperatures (40, 50, 60, and 70°C). Discharge and regen resistances were calculated from the test data. Results indicate that both discharge and regen resistance increased nonlinearly as a function of the test time. The magnitude of the discharge and regen resistance depended on the temperature and state of charge at which the test was conducted. The calculated discharge and regen resistances were then used to develop empirical models that may be useful to predict the calendar life or the cells.

Wright, Randy Ben; Motloch, Chester George

2001-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

SAO network analysis of patents for technology trends identification: a case study of polymer electrolyte membrane technology in proton exchange membrane fuel cells  

Science Conference Proceedings (OSTI)

This paper suggests a method for Subject---Action---Object (SAO) network analysis of patents for technology trends identification by using the concept of function. The proposed method solves the shortcoming of the keyword-based approach to identification ... Keywords: Actor network theory, C63, C82, Co-word analysis, Function, Patent analysis, Patent mining, Technology Subject-Action-Object (SAO), Technology trends analysis

Sungchul Choi; Janghyeok Yoon; Kwangsoo Kim; Jae Yeol Lee; Cheol-Han Kim

2011-09-01T23:59:59.000Z

182

Small-Column Ion-Exchange Alternative to Remove 137Cs from Low-Curie Salt Waste: Summary of Phase 1  

SciTech Connect

A Small-Column Ion-Exchange (SCIX) system is being evaluated for removing cesium from the Type 2 and/or Type 3 dissolved saltcake wastes at the Savannah River Site (SRS) to ensure that the dissolved saltcake meets the waste acceptance criteria at the Saltstone Facility. Both crystalline silicotitanate (CST) and IONSIV{trademark} IE-96 zeolite were evaluated as the ion-exchange media. The accelerated alternative, using CST in the SCIX, could save as much as $3 billion in operating and storage costs and {approx}20 years in processing time compared to the current baseline. With its proven high cesium-loading capacity for the expected dissolved saltcake compositions and temperatures, CST is the preferred sorbent for SCIX. The low-cost alternative sorbent, zeolite, greatly increases the volume of sorbent required because of its much lower cesium-loading capacity. Thus, zeolite greatly increases the cost for the alternative, mainly because of the increased number of Defense Waste Processing Facility canisters required to dispose of the loaded sorbent (potentially over 7000 for zeolite, compared with <500 for CST). The models previously developed for predicting cesium loading on CST compared favorably with laboratory measurements of equilibrium distribution ratios and column loading performance using dissolved saltcake simulants. These models predict that a column of 432 gal of CST can operate at 25 gal/min and treat 100,000 to 900,000 gal of dissolved saltcake, depending on the solution composition. An average value of 300,000 gal per column was used for the cost benefit analysis. Predicted cesium loading on the CST is normally below 300 Ci/L; however, solutions with low salt concentrations could potentially load the CST to 630 Ci/L. Heat transfer calculations predict nonboiling temperatures for the small columns with loadings <100 Ci/L with only natural convection cooling. For the loadings up to the maximum calculated for the tank farm (630 Ci/L), a water cooling system is required to ensure that no boiling occurs in the column if the process flow is stopped. Dose rate calculations indicate that the maximum dose rate above the tank riser is expected to be {approx} 10{sup -2} mrem/h for a column loaded at 300 Ci/L in the riser. The risk analysis indicates a net beneficial impact with no major problems likely to prevent implementation or completion of saltcake treatment.

Walker, JR.,J.F.

2004-05-12T23:59:59.000Z

183

Advanced technology development program for lithium-ion batteries : thermal abuse performance of 18650 Li-ion cells.  

SciTech Connect

Li-ion cells are being developed for high-power applications in hybrid electric vehicles currently being designed for the FreedomCAR (Freedom Cooperative Automotive Research) program. These cells offer superior performance in terms of power and energy density over current cell chemistries. Cells using this chemistry are the basis of battery systems for both gasoline and fuel cell based hybrids. However, the safety of these cells needs to be understood and improved for eventual widespread commercial application in hybrid electric vehicles. The thermal behavior of commercial and prototype cells has been measured under varying conditions of cell composition, age and state-of-charge (SOC). The thermal runaway behavior of full cells has been measured along with the thermal properties of the cell components. We have also measured gas generation and gas composition over the temperature range corresponding to the thermal runaway regime. These studies have allowed characterization of cell thermal abuse tolerance and an understanding of the mechanisms that result in cell thermal runaway.

Crafts, Chris C.; Doughty, Daniel Harvey; McBreen, James. (Bookhaven National Lab, Upton, NY); Roth, Emanuel Peter

2004-03-01T23:59:59.000Z

184

Product technology and market assessment for silicon carbide whisker reinforced alumina heat-exchanger tubes. Final report  

Science Conference Proceedings (OSTI)

This report describes a study designed to develop an assessment of key performance features, desirable technical specifications and market potential for silicon carbide whisker-reinforced alumina (henceforth SCWRA) tubes for heat exchanger applications in a number of industries. The results of the first stage of a Delphi study conducted in the US market are presented. The second phase of the study is in progress. The first stage results suggest that there is a small market for SCWRA tubes in heat exchanger applications. The market is expected to grow steadily during the 1990`s. With appropriate performance specifications and competitive pricing, growth should come from (a) new applications that permit recovery in cases that were previously infeasible and (b) selective, partial substitution and replacement of current ceramics and metal/ceramic composites in existing applications. We identify key performance factors and detailed specifications needed in six designated industries (primary metals, fabricated metals, chemicals, glass, utility and incinerators). Reliability, durability and low maintenance costs emerge as critical performance factors across these industries. The data show that although ceramics are recognized as having better properties, enhancing reliability and durability and thus improving maintenance cost performance is a key priority. Such improvements, reflected in the objectives for SCWRA tubes, should facilitate adoption in both new and existing applications. At this time, we are unable to assess market size directly. However, expert judgment provided indices tracking the projected market for heat exchanger tubes from 1990 to 2005.

Loutfy, R.O.; Withers, J.C. [Materials and Electrochemical Research Corp., Tucson, AZ (United States); Chakravarti, D. [Arizona Univ., Tucson, AZ (United States)

1993-10-01T23:59:59.000Z

185

Plasma-based ion implantation and deposition: A review of physics, technology, and applications  

E-Print Network (OSTI)

X. Y. Yao, and K. -M. Yu, "Plasma synthesis of metallic andT. Short, and J. Tendys, "Plasma immersion ion implantationBang, and M. -R. Lin, "Plasma doping for shallow junctions,"

Pelletier, Jacques; Anders, Andre

2005-01-01T23:59:59.000Z

186

Plug-In Electric Vehicle Lithium-Ion Battery Cost and Advanced Battery Technologies Forecasts  

Science Conference Proceedings (OSTI)

Batteries are a critical cost factor for plug-in electric vehicles, and the current high cost of lithium ion batteries poses a serious challenge for the competitiveness of Plug-In Electric Vehicles (PEVs). Because the market penetration of PEVs will depend heavily on future battery costs, determining the direction of battery costs is very important. This report examines the cost drivers for lithium-ion PEV batteries and also presents an assessment of recent advancements in the growing attempts to ...

2012-12-12T23:59:59.000Z

187

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT01, KT02, KT03, AND KT04-SERIES GLASS COMPOSITIONS  

SciTech Connect

Four series of glass compositions were selected, fabricated, and characterized as part of a study to determine the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. The KT01 and KT02-series of glasses were chosen to allow for the identification of the influence of the concentrations of major components of the glass on the retention of TiO{sub 2}. The KT03 series of glasses was chosen to allow for the identification of these influences when higher Nb{sub 2}O{sub 5} and ZrO{sub 2} concentrations are included along with TiO2. The KT04 series of glasses was chosen to investigate the properties and performance of glasses based on the best available projections of actual compositions to be processed at the DWPF (i.e., future sludge batches including the SCIX streams).

Fox, K.; Edwards, T.

2010-11-01T23:59:59.000Z

188

Investigation of the effect of intra-molecular interactions on the gas-phase conformation of peptides as probed by ion mobility-mass spectrometry, gas-phase hydrogen/deuterium exchange, and molecular mechanics  

E-Print Network (OSTI)

Ion mobility-mass spectrometry (IM-MS), gas-phase hydrogen/deuterium (H/D) exchange ion molecule reactions and molecular modeling provide complimentary information and are used here for the characterization of peptide ion structure, including fine structure detail (i.e., cation-? interactions, ?-turns, and charge solvation interactions). IM-MS experiments performed on tyrosine containing tripeptides show that the collision cross-sections of sodiated, potassiated and doubly sodiated species of gly-gly-tyr are smaller than that of the protonated species, while the cesiated and doubly cesiated species are larger. Conversely, all of the alkali-adducted species of try-gly-gly have collision cross-sections that are larger than that of the protonated species. The protonated and alkali metal ion adducted (Na+, K+ and Cs+) species of bradykinin and bradykinin fragments 1-5, 1-6, 1-7, 1-8, 2-7, 5-9 and 2-9 were also studied using IM-MS and the alkali metal ion adducts of these species were found to have cross-sections very close to those of the protonated species. Additionally, multiple peak features observed in the ATDs of protonated bradykinin fragments 1-5, 1-6 and 1-7 are conserved upon alkali metal ion adduction. It was observed from gas-phase H/D ion molecule reactions that alkali adducted species exchange slower and to a lesser extent than protonated species in the tyrosine- and arginine-containing peptides. Experimental and computational results are discussed in terms of peptide ion structure, specifically the intra-molecular interactions present how those interactions change upon alkali salt adduction, as well as with the sequence of the peptide. Additionally, IM-MS data suggests the presence of a compact conformation of bradykinin fragment 1-5 (RPPGF) when starting from organic solvent conditions. As water is added stepwise to methanolic solutions, a more extended conformation is populated. When the starting solution is composed of ?90% water, two distinct mobility profiles are observed as well as a shoulder, indicating the presence of three gas-phase conformations for RPPGF. Gas-phase H/D exchange of [M+H]+ ions prepared from aqueous solvents show a bi-exponential decay, whereas samples prepared from organic solvents show a single exponential decay. The effect of solvent on gas-phase peptide ion structure, i.e., solution-phase memory effects, is discussed and gas-phase structures are compared to know solution-phase structures.

Sawyer, Holly Ann

2004-12-01T23:59:59.000Z

189

International fuel cycle and waste management technology exchange activities sponsored by the United States Department of Energy: FY 1982 evaluation report  

SciTech Connect

In FY 1982, DOE and DOE contractor personnel attended 40 international symposia and conferences on fuel reprocessing and waste management subjects. The treatment of high-level waste was the topic most often covered in the visits, with geologic disposal and general waste management also being covered in numerous visits. Topics discussed less frequently inlcude TRU/LLW treatment, airborne waste treatment, D and D, spent fuel handling, and transportation. The benefits accuring to the US from technology exchange activities with other countries are both tangible, e.g., design of equipment, and intangible, e.g., improved foreign relations. New concepts initiated in other countries, particularly those with sizable nuclear programs, are beginning to appear in US efforts in growing numbers. The spent fuel dry storage concept originating in the FRG is being considered at numerous sites. Similarly, the German handling and draining concepts for the joule-heated ceramic melter used to vitrify wastes are being incorporated in US designs. Other foreigh technologies applicable in the US include the slagging incinerator (Belgium), the SYNROC waste form (Australia), the decontamination experience gained in decommissioning the Eurochemic reprocessing plant (Belgium), the engineered surface storage of low- and intermediate-level waste (Belgium, FRG, France), the air-cooled storage of vitrified high-level waste (France, UK), waste packaging (Canada, FRG, Sweden), disposal in salt (FRG), disposal in granite (Canada, Sweden), and sea dumping (UK, Belgium, The Netherlands, Switzerland). These technologies did not necessarily originated or have been tried in the US but for various reasons are now being applied and extended in other countries. This growing nuclear technological base in other countires reduces the number of technology avenues the US need follow to develop a solid nuclear power program.

Lakey, L.T.; Harmon, K.M.

1983-02-01T23:59:59.000Z

190

Anion exchange membrane  

DOE Patents (OSTI)

An anion exchange membrane and fuel cell incorporating the anion exchange membrane are detailed in which proazaphosphatrane and azaphosphatrane cations are covalently bonded to a sulfonated fluoropolymer support along with anionic counterions. A positive charge is dispersed in the aforementioned cations which are buried in the support to reduce the cation-anion interactions and increase the mobility of hydroxide ions, for example, across the membrane. The anion exchange membrane has the ability to operate at high temperatures and in highly alkaline environments with high conductivity and low resistance.

Verkade, John G; Wadhwa, Kuldeep; Kong, Xueqian; Schmidt-Rohr, Klaus

2013-05-07T23:59:59.000Z

191

Argonne Transportation Technology R&D Center - About Us - DOE, Lithium-ion  

NLE Websites -- All DOE Office Websites (Extended Search)

About Us About Us Transportation Research Focuses on DOE's Energy Resources Goals Open the Door The U.S. Department of Energy's (DOE's) goals call for increasing the efficiency and productivity of energy use, while limiting the environmental impacts. In support of these goals, Argonne's Transportation Technology Research and Development Center (TTRDC) brings together scientists and engineers from many disciplines to find cost-effective solutions to the problems of foreign oil dependency and greenhouse gas emissions. As one of the DOE's lead laboratories for research in hybrid powertrains, batteries, and fuel efficient technologies, Argonne's transportation program is critical to advancing the development of next-generation vehicles. The TTRDC's overall goal is to work with DOE, other federal agencies, and industrial partners to put new transportation technologies on the road that improve the way we live and contribute to a better, cleaner future for all.

192

Office of Waste Processing Technical Exchange  

NLE Websites -- All DOE Office Websites (Extended Search)

Event Media Links Event Media Links Session 1: Technical Exchange Opening Topic Speaker PDF Podcast S01-01 Welcome T. Michalske, SRNL N/A Podcast S01-03 Introductions G. Flowers, SRNS N/A Podcast S01-04 Opening Remarks I. Triay, DOE-EM Presentation PDF Podcast S01-05 Status of Waste Processing Technology Development S. Schneider, DOE-EM Presentation PDF Podcast S01-06 Hanford/SRS Tank Waste Path Forward K. Subramanian/ T. Sams, SRR/WRPS Presentation PDF Podcast S01-07 Fluidized Bed Steam Reformer Overview B. Mason, TTT Presentation PDF Podcast S01-08 Next Generation Cesium Solvent B.Moyer/S. Fink/M. Geeting, ORNL/SRNL/SRR Presentation PDF Podcast S01-09 Rotary Microfilter Development/Small Column Ion Exchange D. Herman/ R. Edwards, SRNL/SRR Presentation PDF Podcast Session 2: Increased Waste Loading - Improved Current Processing

193

PROJECT W-551 INTERIM PRETREATMENT SYSTEM TECHNOLOGY SELECTION SUMMARY DECISION REPORT AND RECOMMENDATION  

SciTech Connect

This report provides the conclusions of the tank farm interim pretreatment technology decision process. It documents the methodology, data, and results of the selection of cross-flow filtration and ion exchange technologies for implementation in project W-551, Interim Pretreatment System. This selection resulted from the evaluation of specific scope criteria using quantitative and qualitative analyses, group workshops, and technical expert personnel.

CONRAD EA

2008-08-12T23:59:59.000Z

194

Technologies  

Technologies Materials. Aggregate Spray for Air Particulate; Actuators Made From Nanoporous Materials; Ceramic Filters; Energy Absorbing Material; Diode Arrays for ...

195

Technologies  

Science & Technology. Weapons & Complex Integration. News Center. News Center. Around the Lab. Contacts. For Reporters. Livermore Lab Report. ...

196

Technologies  

Technologies Energy. Advanced Carbon Aerogels for Energy Applications; Distributed Automated Demand Response; Electrostatic Generator/Motor; Modular Electromechanical ...

197

Technologies  

Technologies Energy, Utilities, & Power Systems. Advanced Carbon Aerogels for Energy Applications; Distributed Automated Demand Response; Electrostatic Generator/Motor

198

Technologies  

Technologies Research Tools. Cell-Free Assembly of NanoLipoprotein Particles; Chemical Prism; Lawrence Livermore Microbial Detection Array (LLMDA) ...

199

Aluminum Reduction Technology  

Science Conference Proceedings (OSTI)

Increasing the Power Modulation Window of Aluminium Smelter Pots with Shell Heat Exchanger Technology · Initiatives To Reduction Of Aluminum Potline ...

200

Association Exchange  

Science Conference Proceedings (OSTI)

The AOCS Association Exchange program goal is to create collaborative partnerships and long term business relations with related organizations. Association Exchange Membership Information achievement application award Awards distinguished division

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Information Exchange  

Science Conference Proceedings (OSTI)

To encourage the exchange of information, NIST holds many workshops, seminars, tours and other events available to the public. ...

2012-08-29T23:59:59.000Z

202

Technical progress report, October 1, 1977--September 30, 1978. [Production of polarized hydrogen ions and atoms and their charge exchange reactions on various gas targets  

DOE Green Energy (OSTI)

Topics covered include: direct production of polarized D/sup -/ (or H/sup -/) ions; the maximum fraction of fast H/sup 0/ (or D/sup 0/) atoms produced when H/sup -/ (or D/sup -/) is incident on various gas targets; cross sections for charge changing reactions when fast H/sup 0/ atoms and H/sup -/ ions are incident on various gas targets; and the production of H/sup -/ ions in an alkali vapor target. (GHT)

None

1978-01-01T23:59:59.000Z

203

Argonne Transportation Technology R&D Center - Lithium-ion Batteries,  

NLE Websites -- All DOE Office Websites (Extended Search)

Alternative Fuels Autonomie Batteries Downloadable Dynamometer Database Engines Green Racing GREET Hybrid Electric Vehicles Hydrogen & Fuel Cells Materials Modeling, Simulation & Software Plug-In Hybrid Electric Vehicles PSAT Smart Grid Student Competitions Technology Analysis Transportation Research and Analysis Computing Center Working With Argonne Contact TTRDC Photo of battery developers that links to story Press Coverage What's New Multimedia Logo of the Wharton School of Business Dec. 13. Knowledge@Wharton. Green SPorts and Transportation: The Elephant in the Room Logo of Crain's Chicago Business Dec. 10. Crain's Chicago Business. Argonne chemist Pete Chupas named one of Crain's 2013 "40 under 40" Logo of the Sioux City Journal Dec. 2. Sioux City Journal. Ethanol Supporters Say the Numbers Support Their Industry

204

Synergistic diffuser/heat-exchanger design  

E-Print Network (OSTI)

The theoretical and numerical evaluation of synergistic diffusing heat-exchanger design is presented. Motivation for this development is based on current diffuser and heat-exchange technologies in cogeneration plants, which ...

Lazzara, David S. (David Sergio), 1980-

2004-01-01T23:59:59.000Z

205

Technologies  

High Performance Computing (HPC) Technologies; Industrial Partnerships Office P.O. Box 808, L-795 Livermore, CA 94551 Phone: (925) 422-6416 Fax: (925) ...

206

Advanced Electrodeionization Technology (EDI)  

This approach enables simultaneous desalination and resin regeneration. In Argonne/EDSEP EDI, the resin (the active component in ion exchange columns) ...

207

Technolog  

NLE Websites -- All DOE Office Websites (Extended Search)

Research in Research in Science and Technolog y Sandia pushes frontiers of knowledge to meet the nation's needs, today and tomorrow Sandia National Laboratories' fundamental science and technology research leads to greater understanding of how and why things work and is intrinsic to technological advances. Basic research that challenges scientific assumptions enables the nation to push scientific boundaries. Innovations and breakthroughs produced at Sandia allow it to tackle critical issues, from maintaining the safety, security and effectiveness of the nation's nuclear weapons and preventing domestic and interna- tional terrorism to finding innovative clean energy solutions, develop- ing cutting-edge nanotechnology and moving the latest advances to the marketplace. Sandia's expertise includes:

208

Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Technology Computers and the internet play an increasingly larger role in the lives of students. In this activity, students must use various web sites to locate specific pieces of...

209

Cryogenic ion implantation near amorphization threshold dose for halo/extension junction improvement in sub-30 nm device technologies  

SciTech Connect

We report on junction advantages of cryogenic ion implantation with medium current implanters. We propose a methodical approach on maximizing cryogenic effects on junction characteristics near the amorphization threshold doses that are typically used for halo implants for sub-30 nm technologies. BF{sub 2}{sup +} implant at a dose of 8 Multiplication-Sign 10{sup 13}cm{sup -2} does not amorphize silicon at room temperature. When implanted at -100 Degree-Sign C, it forms a 30 - 35 nm thick amorphous layer. The cryogenic BF{sub 2}{sup +} implant significantly reduces the depth of the boron distribution, both as-implanted and after anneals, which improves short channel rolloff characteristics. It also creates a shallower n{sup +}-p junction by steepening profiles of arsenic that is subsequently implanted in the surface region. We demonstrate effects of implant sequences, germanium preamorphization, indium and carbon co-implants for extension/halo process integration. When applied to sequences such as Ge+As+C+In+BF{sub 2}{sup +}, the cryogenic implants at -100 Degree-Sign C enable removal of Ge preamorphization, and form more active n{sup +}-p junctions and steeper B and In halo profiles than sequences at room temperature.

Park, Hugh; Todorov, Stan; Colombeau, Benjamin; Rodier, Dennis; Kouzminov, Dimitry; Zou Wei; Guo Baonian; Khasgiwale, Niranjan; Decker-Lucke, Kurt [Applied Materials, Varian Semiconductor Equipment, 35 Dory Road, Gloucester, Massachusetts 01930 (United States)

2012-11-06T23:59:59.000Z

210

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT08, KT09, AND KT10-SERIES GLASS COMPOSITIONS  

Science Conference Proceedings (OSTI)

This report is the fourth in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility (SWPF) is also considered in the study. The KT08-series of glasses was designed to evaluate any impacts of the inclusion of uranium and thorium in glasses containing the SCIX components. The KT09-series of glasses was designed to study the effect of increasing Al{sub 2}O{sub 3} and K{sub 2}O concentrations on the propensity for crystallization of titanium containing phases in high TiO{sub 2} concentration glasses. Earlier work on the KT05-series glasses recommended that the impact of these two components be studied further. Increased Al{sub 2}O{sub 3} concentrations have been shown to improve the properties and performance of high waste loading glasses, and K{sub 2}O has been reported to improve the retention of TiO{sub 2} in silicate glasses. The KT10-series of compositions was designed to evaluate any impacts of the SCIX components at concentrations 50% higher than currently projected.a The glasses were fabricated in the laboratory and characterized to identify crystallization, to verify chemical compositions, to measure viscosity, and to measure durability. Liquidus temperature measurements for the KT10-series glasses are underway and will be reported separately. All but one of the KT08-series glasses were found to be amorphous by X-ray diffraction (XRD). One of the slowly cooled glasses contained a small amount of trevorite, which had no practical impact on the durability of the glass and is typically found in DWPF-type glasses. The measured Product Consistency Test (PCT) responses for the KT08-series glasses are well predicted by the DWPF models. The viscosities of the KT08-series glasses were generally well predicted by the DWPF model. No unexpected issues were encountered when uranium and thorium were added to the glasses with SCIX components. Increased Al{sub 2}O{sub 3} concentrations were not successful in preventing the formation of iron titanate crystals in the KT09-series glasses. Increased K{sub 2}O concentrations were successful in hindering the formation of iron titanates in some of the glasses after the canister centerline cooled (CCC) heat treatment. However, this result did not apply to all of the CCC versions of the glasses, indicating a compositional dependence of this effect. In addition, high concentrations of K{sub 2}O have been shown to hinder the ability of the DWPF durability and viscosity models to predict the performance of these glasses. The usefulness of increased K{sub 2}O concentrations in preventing the formation of iron titanates may therefore be limited. Further characterization was not performed for the KT09-series glasses since the type of crystallization formed was the characteristic of interest for these compositions. All of the KT10-series glasses were XRD amorphous, regardless of heat treatment. Chemical composition measurements showed that the glasses met the targeted concentrations for each oxide. In general, the measured PCT responses of the KT10-series glasses were well predicted by the DWPF models. The measured, normalized release values for silicon for some of the glasses fell above the 95% confidence interval for the predicted values; however, the PCT responses for these glasses remain considerably lower than that of the benchmark Environmental Assessment (EA) glass. The viscosities of the KT10-series glasses were generally well predicted by the DWPF model. The next step in this study will be to compile all of the data developed and further compare the measured properties and performance with those predicted by the current DWPF Product Composition Control System (PCCS) models. Recommendations will then be made as to which models, if any, may need to be modified in order to accommodate the material from SCIX into DWPF

Fox, K.; Edwards, T.

2011-04-26T23:59:59.000Z

211

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT08, KT09, AND KT10-SERIES GLASS COMPOSITIONS  

SciTech Connect

This report is the fourth in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility (SWPF) is also considered in the study. The KT08-series of glasses was designed to evaluate any impacts of the inclusion of uranium and thorium in glasses containing the SCIX components. The KT09-series of glasses was designed to study the effect of increasing Al{sub 2}O{sub 3} and K{sub 2}O concentrations on the propensity for crystallization of titanium containing phases in high TiO{sub 2} concentration glasses. Earlier work on the KT05-series glasses recommended that the impact of these two components be studied further. Increased Al{sub 2}O{sub 3} concentrations have been shown to improve the properties and performance of high waste loading glasses, and K{sub 2}O has been reported to improve the retention of TiO{sub 2} in silicate glasses. The KT10-series of compositions was designed to evaluate any impacts of the SCIX components at concentrations 50% higher than currently projected.a The glasses were fabricated in the laboratory and characterized to identify crystallization, to verify chemical compositions, to measure viscosity, and to measure durability. Liquidus temperature measurements for the KT10-series glasses are underway and will be reported separately. All but one of the KT08-series glasses were found to be amorphous by X-ray diffraction (XRD). One of the slowly cooled glasses contained a small amount of trevorite, which had no practical impact on the durability of the glass and is typically found in DWPF-type glasses. The measured Product Consistency Test (PCT) responses for the KT08-series glasses are well predicted by the DWPF models. The viscosities of the KT08-series glasses were generally well predicted by the DWPF model. No unexpected issues were encountered when uranium and thorium were added to the glasses with SCIX components. Increased Al{sub 2}O{sub 3} concentrations were not successful in preventing the formation of iron titanate crystals in the KT09-series glasses. Increased K{sub 2}O concentrations were successful in hindering the formation of iron titanates in some of the glasses after the canister centerline cooled (CCC) heat treatment. However, this result did not apply to all of the CCC versions of the glasses, indicating a compositional dependence of this effect. In addition, high concentrations of K{sub 2}O have been shown to hinder the ability of the DWPF durability and viscosity models to predict the performance of these glasses. The usefulness of increased K{sub 2}O concentrations in preventing the formation of iron titanates may therefore be limited. Further characterization was not performed for the KT09-series glasses since the type of crystallization formed was the characteristic of interest for these compositions. All of the KT10-series glasses were XRD amorphous, regardless of heat treatment. Chemical composition measurements showed that the glasses met the targeted concentrations for each oxide. In general, the measured PCT responses of the KT10-series glasses were well predicted by the DWPF models. The measured, normalized release values for silicon for some of the glasses fell above the 95% confidence interval for the predicted values; however, the PCT responses for these glasses remain considerably lower than that of the benchmark Environmental Assessment (EA) glass. The viscosities of the KT10-series glasses were generally well predicted by the DWPF model. The next step in this study will be to compile all of the data developed and further compare the measured properties and performance with those predicted by the current DWPF Product Composition Control System (PCCS) models. Recommendations will then be made as to which models, if any, may need to be modified in order to accommodate the material from SCIX into DWPF

Fox, K.; Edwards, T.

2011-04-26T23:59:59.000Z

212

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Ion Sources and Beam Technologies Ion Sources and Beam Technologies GENERATORS AND DETECTORS Compact, Safe and Energy Efficient Neutron Generator Fast Pulsed Neutron Generator High Energy Gamma Generator Lithium-Drifted Silicon Detector with Segmented Contacts Low Power, High Energy Gamma Ray Detector Calibration Device Nested Type Coaxial Neutron Generator Neutron and Proton Generators: Cylindrical Neutron Generator with Nested Option, IB-1764 Neutron-based System for Nondestructive Imaging, IB-1794 Mini Neutron Tube, IB-1793a Ultra-short Ion and Neutron Pulse Production, IB-1707 Mini Neutron Generator, IB-1793b Compact Spherical Neutron Generator, IB-1675 Plasma-Driven Neutron/Gamma Generators Portable, Low-cost Gamma Source for Active Interrogation ION SOURCES WITH ANTENNAS External Antenna for Ion Sources

213

Geothermal: Sponsored by OSTI -- Chapter 11. Heat Exchangers  

Office of Scientific and Technical Information (OSTI)

GEOTHERMAL TECHNOLOGIES LEGACY COLLECTION - Sponsored by OSTI -- Chapter 11. Heat Exchangers Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log...

214

A NEW SOLAR THERMAL RECEIVER UTILIZING A SMALL PARTICLE HEAT EXCHANGER  

E-Print Network (OSTI)

A.J.Hunt, "Small Particle Heat Exchangers" Lawrence BerkeleyUtilizing A Small Particle Heat Exchanger ArIon]. Hunt AprilA SMALL PARTICLE HEAT EXCHANGER Arlon J. Hunt Lawrence

Hunt, Arlon J.

2011-01-01T23:59:59.000Z

215

Exchangeable equilibria  

E-Print Network (OSTI)

The main contribution of this thesis is a new solution concept for symmetric games (of complete information in strategic form), the exchangeable equilibrium. This is an intermediate notion between symmetric Nash and symmetric ...

Stein, Noah D. (Noah Daniel)

2011-01-01T23:59:59.000Z

216

HEAT EXCHANGER  

DOE Patents (OSTI)

A heat exchanger is designed for use in the transfer of heat between a radioactive fiuid and a non-radioactive fiuid. The exchanger employs a removable section containing the non-hazardous fluid extending into the section designed to contain the radioactive fluid. The removable section is provided with a construction to cancel out thermal stresses. The stationary section is pressurized to prevent leakage of the radioactive fiuid and to maintain a safe, desirable level for this fiuid. (AEC)

Fox, T.H. III; Richey, T. Jr.; Winders, G.R.

1962-10-23T23:59:59.000Z

217

STATEMENT OF CONSIDERA l"IONS REQUEST BY INEOS USA LLC, OPERATING AS INEOS TECHNOLOGIES, (lNEOS) FOR AN  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CONSIDERA l"IONS CONSIDERA l"IONS REQUEST BY INEOS USA LLC, OPERATING AS INEOS TECHNOLOGIES, (lNEOS) FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER A PROPOSED SUB-AWARD OF GRANT NO. DE-FG36-04G014315 BETWEEN BIOENGINEERING RESOURCES, INC. (BRI) AND DOE; W(A)2008-028 The Petitioner, INEOS. has requested a waiver of domestic and foreign patent rights for all subject inventions arising from its participation under the above referenced award entitled "Thermochemical Conversion of Com Stover." Petitioner is in the process of acquiring Bioengineering Resources, Inc. (BRI), the original small business grantee. In anticipation of its pending acquisition, Petitioner has proposed to become a sub-awardee under BRI by means of a sub-award agreement (sub-award).

218

New anion-exchange resins for improved separations of nuclear materials. Mid-year progress report  

Science Conference Proceedings (OSTI)

'The authors are developing multi-functional anion-exchange resins that facilitate anion uptake by carefully controlling the structure of the anion receptor site. The new ion-exchange resins interface the rapidly developing field of ion-specific chelating ligands with robust, commercial ion exchange technology. The overall objective of the research is to develop a predictive capability which allows the facile design and implementation of multi-functionalized anion exchange materials which selectively sorb metal complexes of interest from targeted process, waste, and environmental streams. The basic scientific issues addressed are actinide complex speciation along with modeling of the metal complex/functional site interactions in order to determine optimal binding-site characteristics. Their approach uses a thorough determination of the chemical species both in solution and as bound to the resin to determine the characteristics of resin active sites which can actively facilitate specific metal-complex sorption to the resin. The first year milestones were designed to allow us to build off of their extensive expertise with plutonium in nitrate solutions prior to investigating other, less familiar systems. While the principle investigators have successfully developed actinide chelators and ion-exchange materials in the past, the authors were fully aware that integration of this two fields would be challenging, rewarding and, at times, highly frustrating. Relatively small differences in the substrate (cross-linkage, impurities), the active sites (percent substitution, physical accessibility), the actinide solution (oxidation state changes, purity) and the analytical procedures (low detection limits) can produce inconsistent sorption behavior which is difficult to interpret. The potential paybacks for success, however, are enormous. They feel that they have learned a great deal about how to control these numerous variables to produce consistent, reliable analysis of actinide sorption behavior with the new and baseline anion-exchange materials. The four Year 1 (FY97) milestones are listed below along with an update on the progress towards their completion.'

Barr, M.E.

1997-06-01T23:59:59.000Z

219

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger is provided having first and second fluid chambers for passing primary and secondary fluids. The chambers are spaced apart and have heat pipes extending from inside one chamber to inside the other chamber. A third chamber is provided for passing a purge fluid, and the heat pipe portion between the first and second chambers lies within the third chamber.

Daman, Ernest L. (Westfield, NJ); McCallister, Robert A. (Mountain Lakes, NJ)

1979-01-01T23:59:59.000Z

220

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger of the straight tube type in which different rates of thermal expansion between the straight tubes and the supply pipes furnishing fluid to those tubes do not result in tube failures. The supply pipes each contain a section which is of helical configuration.

Wolowodiuk, Walter (New Providence, NJ)

1976-01-06T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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221

Technology Readiness Assessments | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Waste Management » Tank Waste and Waste Processing » Waste Management » Tank Waste and Waste Processing » Technology Readiness Assessments Technology Readiness Assessments Documents Available for Download January 1, 2012 Compilation of TRA Summaries A compilation of all TRA Summaries November 1, 2011 Small Column Ion Exchange at Savannah River Site Technology Readiness Assessment Report February 7, 2011 Preliminary Technology Readiness Assessment (TRA) for the Calcine Disposition Project Volume 2 (CDP) Full Document and Summary Versions are available for download February 7, 2011 Preliminary Technology Readiness Assessment (TRA) for the Calcine Disposition Project Volume 1 (CDP) Full Document and Summary Versions are available for download November 1, 2009 K Basins Sludge Treatment Project Phase 1 Full Document and Summary Versions are available for download

222

Removal of boron from wastewater of geothermal power plant by selective ion-exchange resins. 1: Batch sorption-elution studies  

Science Conference Proceedings (OSTI)

Boron removal was studied using N-glucamine-type resins Diaion CRB 02 and Purolite S 108. The resin Diaion CRB 02 exhibited a higher sorption capacity for boron removal from 0.01 M H{sub 3}BO{sub 3} solution than did Purolite S 108. The presence of calcium, sodium, and chloride ions did not make a large interference on boron removal by both Diaion CRB 02 and Purolite S 108 resins. The sorption behavior of these two chelating resins obeyed the Langmuir isotherm model. Kinetic tests were performed to find the mass transfer mechanism of the sorption process of boron by Diaion CRB 02 resin. Five kinetic models were applied to fit the kinetic data obtained by using glucamine type-resin Diaion CRB 02. The results showed that the rate-determining step is particle diffusion for boron removal by Diaion CRB 02. The quantitative stripping of boron from both chelating resins was obtained with either 0.05 M H{sub 2}SO{sub 4} or 0.1 M HCl solutions. Boron in wastewater of the Kizildere geothermal field was effectively removed by both Diaion CRB 02 and Purolite S 108 resins. Preliminary column tests showed that Diaion CRB 02 is a potential resin for column removal of boron from wastewater of a geothermal power plant.

Badruk, M. [MTA, Izmir (Turkey)] [MTA, Izmir (Turkey); Kabay, N.; Demircioglu, M. [Ege Univ., Izmir (Turkey). Dept. of Mineral Engineering] [Ege Univ., Izmir (Turkey). Dept. of Mineral Engineering; Mordogan, H.; Ipekoglu, U. [Dokuz Eylul Univ., Izmir (Turkey). Dept. of Mineral Engineering] [Dokuz Eylul Univ., Izmir (Turkey). Dept. of Mineral Engineering

1999-09-01T23:59:59.000Z

223

Heat Exchangers  

Science Conference Proceedings (OSTI)

Table 16   Ceramic heat exchanger systems...Soaking pit 870â??1230 1600â??2250 Fe, Si, alkalis Solar Turbines â?¦ 4â??8 OD Ã? 180 long (440 tubes) Aluminum melt furnaces 1010 1850 Alkali salts Plate fin GTE 0.6, 1.6 25â??46 Multiple 870â??1370 1600â??2250 Clean (good), alkalis (poor) Coors 0.25, 1.0 30 Ã? 30 Ã? 46 Multiple Clean (good), alkalis (poor) Radiant...

224

Sandia National Laboratories : Licensing/Technology ...  

Atom/Ion Traps (magnetometry, magnetoencephalography (MEG), quantum computing) Technology Summaries: Patents/Applications: Software: 21 Technology ...

225

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger comparising a shell attached at its open end to one side of a tube sheet and a detachable head connected to the other side of said tube sheet. The head is divided into a first and second chamber in fluid communication with a nozzle inlet and nozzle outlet, respectively, formed in said tube sheet. A tube bundle is mounted within said shell and is provided with inlets and outlets formed in said tube sheet in communication with said first and second chambers, respectively.

Brackenbury, Phillip J. (Richland, WA)

1986-01-01T23:59:59.000Z

226

Potentiometric Sensor for Real-Time Monitoring of Multivalent Ion Concentrations in Molten Salt  

SciTech Connect

Electrorefining of spent metallic nuclear fuel in high temperature molten salt systems is a core technology in pyroprocessing, which in turn plays a critical role in the development of advanced fuel cycle technologies. In electrorefining, spent nuclear fuel is treated electrochemically in order to effect separations between uranium, noble metals, and active metals, which include the transuranics. The accumulation of active metals in a lithium chloride-potassium chloride (LiCl-KCl) eutectic molten salt electrolyte occurs at the expense of the UCl3-oxidant concentration in the electrolyte, which must be periodically replenished. Our interests lie with the accumulation of active metals in the molten salt electrolyte. The real-time monitoring of actinide concentrations in the molten salt electrolyte is highly desirable for controlling electrochemical operations and assuring materials control and accountancy. However, real-time monitoring is not possible with current methods for sampling and chemical analysis. A new solid-state electrochemical sensor is being developed for real-time monitoring of actinide ion concentrations in a molten salt electrorefiner. The ultimate function of the sensor is to monitor plutonium concentrations during electrorefining operations, but in this work gadolinium was employed as a surrogate material for plutonium. In a parametric study, polycrystalline sodium beta double-prime alumina (Na-ß?-alumina) discs and tubes were subject to vapor-phase exchange with gadolinium ions (Gd3+) using a gadolinium chloride salt (GdCl3) as a precursor to produce gadolinium beta double-prime alumina (Gd-ß?-alumina) samples. Electrochemical impedance spectroscopy and microstructural analysis were performed on the ion-exchanged discs to determine the relationship between ion exchange and Gd3+ ion conductivity. The ion-exchanged tubes were configured as potentiometric sensors in order to monitor real-time Gd3+ ion concentrations in mixtures of gadolinium chloride (GdCl3) in LiCl-KCl eutectic molten salts through measurement of the potential difference between a reference and working electrode.

Peter A. Zink; Jan-Fong Jue; Brenda E. Serrano; Guy L. Fredrickson; Ben F. Cowan; Steven D. Herrmann; Shelly X. Li

2010-07-01T23:59:59.000Z

227

Building Technologies Office: About Emerging Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Emerging Technologies Emerging Technologies The Emerging Technologies team funds the research and development of cost-effective, energy-efficient building technologies within five years of commercialization. Learn more about the: Key Technologies Benefits Results Key Technologies Specific technologies pursued within the Emerging Technologies team include: Lighting: advanced solid-state lighting systems, including core technology research and development, manufacturing R&D, and market development Heating, ventilation, and air conditioning (HVAC): heat pumps, heat exchangers, and working fluids Building Envelope: highly insulating and dynamic windows, cool roofs, building thermal insulation, façades, daylighting, and fenestration Water Heating: heat pump water heaters and solar water heaters

228

Segmented heat exchanger  

DOE Patents (OSTI)

A segmented heat exchanger system for transferring heat energy from an exhaust fluid to a working fluid. The heat exchanger system may include a first heat exchanger for receiving incoming working fluid and the exhaust fluid. The working fluid and exhaust fluid may travel through at least a portion of the first heat exchanger in a parallel flow configuration. In addition, the heat exchanger system may include a second heat exchanger for receiving working fluid from the first heat exchanger and exhaust fluid from a third heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the second heat exchanger in a counter flow configuration. Furthermore, the heat exchanger system may include a third heat exchanger for receiving working fluid from the second heat exchanger and exhaust fluid from the first heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the third heat exchanger in a parallel flow configuration.

Baldwin, Darryl Dean (Lafayette, IN); Willi, Martin Leo (Dunlap, IL); Fiveland, Scott Byron (Metamara, IL); Timmons, Kristine Ann (Chillicothe, IL)

2010-12-14T23:59:59.000Z

229

Available Technologies: Behind Casing Fluid Sampler to Monitor ...  

Ion Sources with Antennas; Semiconductor and Other Manufacturing; Ion Source and Beam Tools; Nano- & Micro-technology; Software and IT ;

230

Microfabricated Ion Traps  

E-Print Network (OSTI)

Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation. Microfabricated ion traps hold the advantage of allowing for smaller trap dimensions and better scalability towards large ion trap arrays also making them a vital ingredient for next generation quantum technologies. Here we provide an introduction into the principles and operation of microfabricated ion traps. We show an overview of material and electrical considerations which are vital for the design of such trap structures. We provide guidance in how to choose the appropriate fabrication design, consider different methods for the fabrication of microfabricated ion traps and discuss previously realized structures. We also discuss the phenomenon of anomalous heating of ions within ion traps, which becomes an important factor in the miniaturization of ion traps.

Marcus D. Hughes; Bjoern Lekitsch; Jiddu A. Broersma; Winfried K. Hensinger

2011-01-17T23:59:59.000Z

231

Heavy ion fusion--Using heavy ions to make electricity  

E-Print Network (OSTI)

in Proc. of the Inertial Fusion Science and ApplicationsP. Abbott, P. F. Peterson, Fusion Science and Technology 44March 15–20, 2004 Heavy Ion Fusion– Using Heavy Ions to Make

Celata, C.M.

2004-01-01T23:59:59.000Z

232

Ion Exchange Kinetics Testing with SRF Resin  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) Hanford Site contains more than 53 million gallons of legacy waste generated as a byproduct of plutonium production and reprocessing operations. The wastes are a complex mixture composed mostly of NaNO3, NaNO2, NaOH, NaAlO2, Na3PO4, and Na2SO4, with a number of minor and trace metals, organics, and radionuclides stored in underground waste tanks. The DOE Office of River Protection (ORP) has contracted Bechtel National Incorporated (BNI) to build a pretreatment facility, the River Protection Project-Waste Treatment Plant (RPP-WTP), that will separate long-lived transuranics (TRU) and highly radioactive components (specifically 137Cs and, in selected cases, 90Sr) from the bulk (non-radioactive) constituents and immobilize the wastes by vitrification. The plant is designed to produce two waste streams: a high-volume low-activity waste (LAW) and a low-volume high-activity waste (HLW).

Russell, Renee L.; Rinehart, Donald E.; Brown, Garrett N.; Schonewill, Philip P.; Peterson, Reid A.

2012-04-01T23:59:59.000Z

233

Effects of Silicon and Carbon Composition on Carbon Nanotubes in Lithium-Ion Batteries Sadie Roberts, Georgia Institute of Technology Georgia Tech SURF 2011 Fellow  

E-Print Network (OSTI)

Effects of Silicon and Carbon Composition on Carbon Nanotubes in Lithium-Ion Batteries Sadie Graduate Mentor: Kara Evanoff Introduction Lithium-ion (Li-ion) batteries are attractive for many] Magasinki, A.; Dixon, P.; Hertzberg, B.; Kvit, A.; Ayala, J.; Yushin, G., "High-performance lithium-ion

Li, Mo

234

SMALL PARTICLE HEAT EXCHANGERS  

E-Print Network (OSTI)

ON ~m Small Particle Heat Exchangers Arion J. Hunt June 1978d. LBL 7841 Small Particle Heat Exchangers by Arlon J. Huntgenerally to non-solar heat exchangers. These may be of the

Hunt, A.J.

2011-01-01T23:59:59.000Z

235

Comparative Studies on Micro Heat Exchanger Optimisation Tatsuya Okabe  

E-Print Network (OSTI)

Comparative Studies on Micro Heat Exchanger Optimisation Tatsuya Okabe , Kwasi Foli ¡ , Markus- timisation of a micro heat exchanger (¤ HEX). The trend to- wards miniaturisation has led to the use of micro devices in industry and technology. Micro heat exchangers have very high heat transfer surface area

Coello, Carlos A. Coello

236

Corrosive resistant heat exchanger  

DOE Patents (OSTI)

A corrosive and errosive resistant heat exchanger which recovers heat from a contaminated heat stream. The heat exchanger utilizes a boundary layer of innocuous gas, which is continuously replenished, to protect the heat exchanger surface from the hot contaminated gas. The innocuous gas is conveyed through ducts or perforations in the heat exchanger wall. Heat from the heat stream is transferred by radiation to the heat exchanger wall. Heat is removed from the outer heat exchanger wall by a heat recovery medium.

Richlen, Scott L. (Annandale, VA)

1989-01-01T23:59:59.000Z

237

Materials Technology @ TMS  

Science Conference Proceedings (OSTI)

Sep 23, 2011 ... Recycling lithium ion batteries is not an option; the need to develop enabling technologies is critically important for a sustainable future.

238

Materials Technology @ TMS  

Science Conference Proceedings (OSTI)

DOE Awards $45 Million to Deploy Advanced Transportation Technologies · Novel Electrode Material Offers Alternative for Li-ion Batteries · New Materials Make ...

239

Growth of oxide exchange bias layers  

SciTech Connect

An oxide (NiO, CoO, NiCoO) antiferromagnetic exchange bias layer produced by ion beam sputtering of an oxide target in pure argon (Ar) sputtering gas, with no oxygen gas introduced into the system. Antiferromagnetic oxide layers are used, for example, in magnetoresistive readback heads to shift the hysteresis loops of ferromagnetic films away from the zero field axis. For example, NiO exchange bia layers have been fabricated using ion beam sputtering of an NiO target using Ar ions, with the substrate temperature at 200.degree. C., the ion beam voltage at 1000V and the beam current at 20 mA, with a deposition rate of about 0.2 .ANG./sec. The resulting NiO film was amorphous.

Chaiken, Alison (Fremont, CA); Michel, Richard P. (Bloomington, MN)

1998-01-01T23:59:59.000Z

240

Available Technologies Ion Funnel and Related Technology ...  

Pacific Northwest National Laboratory (509) 375-6958 ... » Healthcare, ... Medical » Professional Services » Security ...

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Woven heat exchanger  

DOE Patents (OSTI)

In a woven ceramic heat exchanger using the basic tube-in-shell design, each heat exchanger consisting of tube sheets and tube, is woven separately. Individual heat exchangers are assembled in cross-flow configuration. Each heat exchanger is woven from high temperature ceramic fiber, the warp is continuous from tube to tube sheet providing a smooth transition and unitized construction.

Piscitella, Roger R. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

242

Manufacturing Science and Technology: Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Ion Beam Manufacture Ion Beam Manufacture PDF format (113 kb) Example sine wave FIB sputtered into initially planar Si substrate Example sine wave FIB sputtered into initially planar Si substrate Sandia Manufacturing Science & Technology's Focused Ion Beam (FIB) laboratory provides an opportunity for research, development and prototyping. Currently, our scientists are developing methods for ion beam sculpting microscale tools, components and devices. This includes shaping of specialty tools such as end-mills, turning tools and indenters. Many of these have been used in ultra-precision machining DOE applications. Additionally, staff are developing the capability to ion mill geometrically-complex features and substrates. This includes the ability to sputter predetermined curved shapes of various symmetries and

243

Woven heat exchanger  

DOE Patents (OSTI)

This invention relates to a heat exchanger for waste heat recovery from high temperature industrial exhaust streams. In a woven ceramic heat exchanger using the basic tube-in-shell design, each heat exchanger consisting of tube sheets and tube, is woven separately. Individual heat exchangers are assembled in cross-flow configuration. Each heat exchanger is woven from high temperature ceramic fiber, the warp is continuous from tube to tube sheet providing a smooth transition and unitized construction.

Piscitella, R.R.

1984-07-16T23:59:59.000Z

244

Office of Waste Processing Technical Exchange  

NLE Websites -- All DOE Office Websites (Extended Search)

Agenda Hotel Register Contacts Event Media Speaker Information Home Agenda Hotel Register Contacts Event Media Speaker Information Home Environmental Management Waste Processing Technical Exchange 2010 in Atlanta, GA, November 16 - 18. Over the past eight years, personnel from the three sites, Savannah River/Hanford/Idaho along with others receiving funding from the Environmental Management Office of Waste Processing have met to exchange recent results of on-going field operations and technology development. The purpose of this exchange is to provide a forum for discussion of each Site's efforts to accelerate cleanup operations. Keys to success and lessons learned are openly exchanged in a manner to allow for open discussion between operations, engineering and scientists to accelerate transition of technologies from concepts to field implementation.

245

Correlation of Structure and Ion Transport Properties in Glassy Ionic ...  

Science Conference Proceedings (OSTI)

... of these glasses depend on the modifier content as well as glass former ratio. ... Ion Exchanged Mixed Glass Cullet Proppants for Stimulation of Oil and ...

246

Negative-ion sources for neutral-beam systems  

Science Conference Proceedings (OSTI)

There are three main methods now used to produce negative hydrogen ions: charge exchange, volume production, and surface production, and this paper briefly describes these three systems.

Ehlers, K.W.

1983-06-01T23:59:59.000Z

247

Korea Power Exchange (KPX) | Open Energy Information  

Open Energy Info (EERE)

Exchange (KPX) Exchange (KPX) Jump to: navigation, search Logo: Korea Power Exchange (KPX) Name Korea Power Exchange (KPX) Agency/Company /Organization Argonne National Laboratory Sector Energy Focus Area Energy Efficiency Topics Background analysis Website http://www.dis.anl.gov/news/Ko Country South Korea Eastern Asia References http://www.dis.anl.gov/news/KoreaKpxIit.html Abstract In an agreement signed on March 26, 2007, Argonne National Laboratory and the Illinois Institute of Technology are joining with the Korea Power Exchange to establish a joint training program combining training and research at Argonne with formal academic education at IIT. Argonne-IIT Joint Graduate Program in Electricity Markets: In an agreement signed on March 26, 2007, Argonne National Laboratory and the Illinois

248

STUDIES ON TWO CLASSES OF POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES  

E-Print Network (OSTI)

as cathode materials for lithium ion battery. ElectrochimicaCapacity, High Rate Lithium-Ion Battery Electrodes Utilizinghours. 1.4 Lithium Ion Batteries Lithium battery technology

Wilcox, James D.

2010-01-01T23:59:59.000Z

249

Microfabricated Ion Traps  

E-Print Network (OSTI)

Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation. Microfabricated ion traps hold the advantage of allowing for smaller trap dimensions and better scalability towards large ion trap arrays also making them a vital ingredient for next generation quantum technologies. Here we provide an introduction into the principles and operation of microfabricated ion traps. We show an overview of material and electrical considerations which are vital for the design of such trap structures. We provide guidance in how to choose the appropriate fabrication design, consider different methods for the fabrication of microfabricated ion traps and discuss previously realized structures. We also discuss the phenomenon of anomalous heating of ions with...

Hughes, Marcus D; Broersma, Jiddu A; Hensinger, Winfried K

2011-01-01T23:59:59.000Z

250

FinalReport for completed IPP-0110 and 0110A Projects:"High Energy Ion Technology of Interfacial Thin Film Coatings for Electronic, Optical and Industrial Applications"  

Science Conference Proceedings (OSTI)

The DOE-supported IPP (Initiatives for Proliferation Prevention) Project, IPP-0110, and its accompanying 'add-on project' IPP-0110A, entitled 'High Energy Ion Technology of Interfacial Thin Film Coatings for Electronic, Optical and Industrial Applications' was a collaborative project involving the Lawrence Berkeley National Laboratory (LBNL) as the U.S. DOE lab; the US surface modification company, Phygen, Inc., as the US private company involved; and the High Current Electronics Institute (HCEI) of the Russian Academy of Sciences, Tomsk, Siberia, Russia, as the NIS Institute involved. Regular scientific research progress meetings were held to which personnel came from all participating partners. The meetings were held mostly at the Phygen facilities in Minneapolis, Minnesota (with Phygen as host) with meetings also held at Tomsk, Russia (HCEI as host), and at Berkeley, California (LBNL as host) In this way, good exposure of all researchers to the various different laboratories involved was attained. This report contains the Final Reports (final deliverables) from the Russian Institute, HCEI. The first part is that for IPP-0110A (the 'main part' of the overall project) and the second part is that for the add-on project IPP-0110A. These reports are detailed, and contain all aspects of all the research carried out. The project was successful in that all deliverables as specified in the proposals were successfully developed, tested, and delivered to Phygen. All of the plasma hardware was designed, made and tested at HCEI, and the performance was excellent. Some of the machine and performance parameters were certainly of 'world class'. The goals and requirements of the IPP Project were well satisfied. I would like to express my gratitude to the DOE IPP program for support of this project throughout its entire duration, and for the unparalleled opportunity thereby provided for all of the diverse participants in the project to join in this collaborative research. The benefits are superb, as measured in quite a number of different ways.

Brown, Ian

2009-09-01T23:59:59.000Z

251

Final project report, staff exchange with Finnigan Corporation  

Science Conference Proceedings (OSTI)

The objective of the exchange between Pacific Northwest Laboratory (PNL) and Finnigan Corporation is a transfer of expertise and technology for the design and operation of efficient and sensitive atmospheric pressure/vacuum electrospray ionization (ESI) sources. The development of such ion sources will permit wider application of mass spectrometry instrumentation in applied studies in a variety of disciplines including clinical, forensic, biochemical, biotechnical, and environmental studies where sensitivity is a paramount concern. Two meetings were held between representatives of Finnigan Corporation (led by Dr. Ian Jardine, Director for Marketing, Finnigan Corporation) and PNL staff members. During these meetings, Finnigan and PNL staff surveyed the existing technology for atmosphere/vacuum interface of mass spectrometry to ESI. The representatives from Finnigan viewed demonstrations of recent developments that increased efficiency and sensitivity for ESI mass spectrometry. During these meetings, knowledge and expertise were shared in the development of instrumentation, methods, and applications of ESI mass spectrometry with particular emphasis on current and planned Finnigan instrumentation. With the objective of more effective and competitive products for Finnigan Corporation, concepts for a Cooperative Research and Development Agreement (CRADA) were directed toward the development and commercialization of advanced high efficiency and sensitivity ESI technology. A detailed proposal and work plan for the cooperative project was developed and is included in this report.

Edmonds, C.G.

1993-08-01T23:59:59.000Z

252

Exchange Rates, Information, and Crises  

E-Print Network (OSTI)

3 Intervention and Exchange Rate Misalignment 4 Conclusion 5explain the exchange rate determination puzzle? Americanrisk to defend the exchange rate. Universit¨at Trier Working

Fernholz, Ricardo Turrin

2011-01-01T23:59:59.000Z

253

NCSL International Technical Exchange  

Science Conference Proceedings (OSTI)

NCSL International Technical Exchange. Purpose: The NCSL International ... Charleston, SC 29418. Technical Contact: Val Miller (301) 975-3602.

2013-02-19T23:59:59.000Z

254

Technology Transfer: Available Technologies  

Lower Cost Lithium Ion Batteries from Aluminum Substituted Cathode Materials ; Nanocomposite Carbon/Tin Anodes for Lithium Ion Batteries;

255

Available Technologies: Remineralization and Repair of ...  

Semiconductor and Other Manufacturing; Ion Source and Beam Tools; Nano- & Micro-technology; ... toothpaste additive; Regenerative, implant and cosmetic dentistry ;

256

NREL: Technology Transfer - NREL Electrode Innovation ...  

National Renewable Energy Laboratory Technology Transfer NREL Electrode Innovation Poised to Shake Up the Li-ion Battery Industry

257

Ion Beam Materials Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Facilities » Facilities » Ion Beam Materials Lab Ion Beam Materials Lab A new research frontier awaits! Our door is open and we thrive on mutually beneficial partnerships, collaborations that drive innovations and new technologies. April 12, 2012 Ion Beam Danfysik Implanter High Voltage Terminal. Contact Yongqiang Wang (505) 665-1596 Email Devoted to the characterization and modification of surfaces through the use of ion beams The Ion Beam Materials Laboratory (IBML) is a Los Alamos National Laboratory resource devoted to the characterization and modification of surfaces through the use of ion beams. The IBML provides and operates the core facilities, while supporting the design and implementation of specific apparati needed for experiments requested by users of the facility. The result is a facility with

258

Quantum exchange interaction of spherically symmetric plasmoids  

E-Print Network (OSTI)

We study nano-sized spherically symmetric plasma structures which are radial nonlinear oscillations of electrons in plasma. The effective interaction of these plasmoids via quantum exchange forces between ions is described. We calculate the energy of this interaction for the case of a dense plasma. The conditions when the exchange interaction is attractive are examined and it is shown that separate plasmoids can form a single object. The application of our results to the theoretical description of stable atmospheric plasma structures is considered.

Maxim Dvornikov

2011-12-01T23:59:59.000Z

259

Ion source  

DOE Patents (OSTI)

A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species.

Leung, Ka-Ngo (Hercules, CA); Ehlers, Kenneth W. (Alamo, CA)

1984-01-01T23:59:59.000Z

260

CHEMICAL TECHNOLOGY DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING MAY 31, 1961  

SciTech Connect

Activities in research programs are summarized in the areas of power reactor fuel processing, fluoride volatility processing, molten salt reactor fuel processing, homogeneous reactor fuel processing, waste treatment and disposal pilot plant decontamination, GCR coolant purification studies, equipment decontamination, HRP thoria blanket development, fuel cycle development, transuranium element studies, production of U/sup 232/, uranium processing, fission product recovery, thorium recovery from granite, solvent extraction technology, mechanisms of separation processes, radiation effects on catalysts, ion exchange technology, chemical engineering research, chemical applications of nuclear explosions, reactor evaluation studies, and assistance programs. (J.R.D.)

1961-09-21T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Technology Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

* Heavy Vehicle Technologies * Heavy Vehicle Technologies * Multi-Path Transportation Futures * Idling Studies * EDrive Vehicle Monthly Sales Transportation Research and Analysis Computing Center Working With Argonne Contact TTRDC Technology Analysis truck Heavy vehicle techologies are one subject of study. Research Reducing Greenhouse Gas Emissions from U.S. Transportation Heavy Vehicle Technologies Multi-Path Transportation Futures Study Idling Studies Light Duty Electric Drive Vehicles Monthly Sales Updates Lithium-Ion Battery Recycling and Life Cycle Analysis Reports Propane Vehicles: Status, Challenges, and Opportunities (pdf; 525 kB) Natural Gas Vehicles: Status, Barriers, and Opportunities (pdf; 696 kB) Regulatory Influences That Will Likely Affect Success of Plug-in Hybrid and Battery Electric Vehicles (pdf; 1.02 MB)

262

HVAC Radial Air Bearing Heat Exchangers Research Project | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Radial Air Bearing Heat Exchangers Radial Air Bearing Heat Exchangers Research Project HVAC Radial Air Bearing Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) radial air bearing heat exchangers. Rotary air bearing heat exchanger technology simultaneously solves four long standing problems of conventional "fan-plus-finned-heat-sink" heat exchangers. Project Description This project seeks to design, fabricate, and test successive generations of prototype radial air bearing heat exchanger devices based on lessons learned and further insights into device optimization, computational fluid dynamic studies for parametric optimization and determination of scaling laws, and laboratory measurement of flow field and heat transfer

263

Technology Commercialization and Partnerships | Brookhaven ...  

There is a particular challenge in delivering affordable advanced technologies such as ion therapy, Lidestri said, ... 2012-1388 | Media & Communications Office.

264

Categorical Exclusion Determinations: National Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Laboratory June 19, 2012 CX-008450: Categorical Exclusion Determination Building 93 Heat Exchanger Removal at National Energy Technology Laboratory Pittsburgh CX(s) Applied:...

265

Geothermal: Sponsored by OSTI -- Chapter 11. Heat Exchangers  

Office of Scientific and Technical Information (OSTI)

1. Heat Exchangers Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications Advanced Search New Hot Docs News...

266

Microsoft PowerPoint - Flach CBP overview PA CoP Tech Exchange...  

NLE Websites -- All DOE Office Websites (Extended Search)

K. Snyder, J. Bullard, NIST E. Samson, J. Marchand, SIMCO Technologies, Inc. (CA) DOE Performance Assessment Community of Practice Technical Exchange 25-26 May 2011 *Hans...

267

A model for improvement of water heating heat exchanger designs for residential heat pump water heaters.  

E-Print Network (OSTI)

??Heat pump water heaters are a promising technology to reduce energy use and greenhouse gas emissions. A key component is the water heating heat exchanger.… (more)

Weerawoot, Arunwattana

2010-01-01T23:59:59.000Z

268

Environmental Energy Technologies Division News  

NLE Websites -- All DOE Office Websites (Extended Search)

the state of wind power in the U.S.? We've got you covered with the annual Wind Technologies Report. What's new in advanced lithium-ion battery technologies? Check out two...

269

Positive and Negative Ion Beam Merging System for Neutral Beam ...  

APPLICATIONS OF TECHNOLOGY: Semiconductor manufacturing; Low- and medium-energy ion implantation; Fusion plasma systems requiring neutral beam ...

270

Lower Cost Lithium Ion Batteries From Aluminum Substituted ...  

Lower Cost Lithium Ion Batteries From Aluminum Substituted Cathode Materials Lawrence Berkeley National Laboratory. Contact LBL About This Technology

271

Lithium Ion Accomplishments  

NLE Websites -- All DOE Office Websites (Extended Search)

Lithium ion Battery Commercialization Lithium ion Battery Commercialization Johnson Controls-Saft Advanced Power Solutions, of Milwaukee, Wisconsin: Johnson Controls-Saft (JCS) will supply lithium-ion batteries to Mercedes for their S Class Hybrid to be introduced in October 2009. Technology developed with DOE support (the VL6P cell) will be used in the S Class battery. In May 2006, the Johnson Controls-Saft Joint Venture was awarded a 24 month $14.4 million contract by the DOE/USABC to develop a 40kW Li ion HEV battery system offering improved safety, low temperature performance, and cost. JCS has reported a 40% cost reduction of the 40kW system being developed in their DOE/USABC contract while maintaining performance. Lithium Ion Battery Material Commercialization Argonne National Laboratory has licensed cathode materials and associated processing

272

Exchanging intensional XML data  

Science Conference Proceedings (OSTI)

XML is becoming the universal format for data exchange between applications. Recently, the emergence of Web services as standard means of publishing and accessing data on the Web introduced a new class of XML documents, which we call intensional ... Keywords: Data exchange, Web services, XML, intensional information, typing

Tova Milo; Serge Abiteboul; Bernd Amann; Omar Benjelloun; Fred Dang Ngoc

2005-03-01T23:59:59.000Z

273

Direct fired heat exchanger  

DOE Patents (OSTI)

A gas-to-liquid heat exchanger system which transfers heat from a gas, generally the combustion gas of a direct-fired generator of an absorption machine, to a liquid, generally an absorbent solution. The heat exchanger system is in a counterflow fluid arrangement which creates a more efficient heat transfer.

Reimann, Robert C. (Lafayette, NY); Root, Richard A. (Spokane, WA)

1986-01-01T23:59:59.000Z

274

Uniform insulation applied-B ion diode  

DOE Patents (OSTI)

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, and ions may be focused at a point on the z axis.

Seidel, D.B.; Slutz, S.A.

1986-04-11T23:59:59.000Z

275

Uniform insulation applied-B ion diode  

DOE Patents (OSTI)

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

276

2013 NETL CO2 Capture Technology Meeting Sheraton Station Square...  

NLE Websites -- All DOE Office Websites (Extended Search)

CO2 Capture Technology Meeting Sheraton Station Square, Pittsburgh, PA July 8 - 11, 2013 ION Novel Solvent System for CO 2 Capture FE0005799 Nathan Brown ION Engineering...

277

About Emerging Technologies | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Emerging Technologies » About Emerging Technologies Emerging Technologies » About Emerging Technologies About Emerging Technologies The Emerging Technologies team funds the research and development of cost-effective, energy-efficient building technologies within five years of commercialization. Learn more about the: Key Technologies Benefits Results Key Technologies Specific technologies pursued within the Emerging Technologies team include: Lighting: advanced solid-state lighting systems, including core technology research and development, manufacturing R&D, and market development Heating, ventilation, and air conditioning (HVAC): heat pumps, heat exchangers, and working fluids Building Envelope: highly insulating and dynamic windows, cool roofs, building thermal insulation, façades, daylighting, and fenestration

278

Staff exchange with Freeborn Tool Company. Final project  

SciTech Connect

Staff exchanges, such as the one described in this report, are intended to facilitate communication and collaboration among scientists and engineers at Department of Energy (DOE) laboratories, US industry, and academia. Funding support for these exchanges is provided by the DOE, Office of Energy Research, Laboratory Technology Transfer Program. Funding levels for each exchange typically range from $20,000 to $40,000. The exchanges offer the opportunity for the laboratories to transfer technology and expertise to industry, gain a perspective on industry`s problems, and develop the basis for further cooperative efforts through Cooperative Research and Development Agreements (CRADAs) or other mechanisms. Information in this report on the staff exchange of Pacific Northwest Laboratory (PNL) staff with Freeborn Tool Company includes the purpose and objectives, a summary of activities, significant accomplishments, significant problems, industry benefits realized, recommended follow-on work and potential benefits expected from that work.

Rasmussen, D.E.

1994-09-01T23:59:59.000Z

279

IonBeamMicroFab  

NLE Websites -- All DOE Office Websites (Extended Search)

Ion Beam Manufacture of Microscale Ion Beam Manufacture of Microscale Tools and Components Manufacturing Technologies Sandia Manufacturing Science &Technology's Focused Ion Beam (FIB) laboratory provides an opportunity for research, development and prototyping. Currently, our scientists are devel- oping methods for ion beam sculpting microscale tools, components and devices. This includes shaping of specialty tools such as end-mills, turning tools and indenters. Many of these have been used in ultra-precision machining DOE applications. Additionally, staff are developing the capability to ion mill geo- metrically-complex features and substrates. This includes the ability to sputter predeter- mined curved shapes of various symmetries and periodicities. Capabilities and Expertise * Two custom-built focused ion beam sys-

280

Secondary Waste Considerations for Vitrification of Sodium-Bearing Waste at the Idaho Nuclear Technology and Engineering Center FY-2001 Status Report  

SciTech Connect

The Idaho Nuclear Technology and Engineering Center (INTEC) is considering vitrification to process liquid sodium-bearing waste. Preliminary studies were completed to evaluate the potential secondary wastes from the melter off-gas clean up systems. Projected secondary wastes comprise acidic and caustic scrubber solutions, HEPA filters, activated carbon, and ion exchange media. Possible treatment methods, waste forms, and disposal sites are evaluated from radiological and mercury contamination estimates.

Herbst, A.K.; Kirkham, R.J.; Losinski, S.J.

2002-09-26T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Charge exchange recombination spectroscopy on fusion devices  

Science Conference Proceedings (OSTI)

For fusion, obtaining reliable measurements of basic plasma parameters like ion and electron densities and temperatures is a primary goal. For theory, measurements are needed as a function of time and space to understand plasma transport and confinement with the ultimate goal of achieving economic nuclear fusion power. Electron profile measurements and plasma spectroscopy for the plasma ions are introduced. With the advent of Neutral Beam auxiliary plasma heating, Charge Exchange Recombination Spectroscopy provides accurate and time resolved measurements of the ions in large volume fusion devices. In acknowledgement of Nicol Peacock's role in the development of these techniques, still at the forefront of plasma fusion research, this paper describes the evolution of this diagnostic method.

Duval, B. P. [Centre de Recherches en Physique des Plasmas, EPFL, Lausanne (Switzerland)

2012-05-25T23:59:59.000Z

282

Wound tube heat exchanger  

DOE Patents (OSTI)

What is disclosed is a wound tube heat exchanger in which a plurality of tubes having flattened areas are held contiguous adjacent flattened areas of tubes by a plurality of windings to give a double walled heat exchanger. The plurality of windings serve as a plurality of effective force vectors holding the conduits contiguous heat conducting walls of another conduit and result in highly efficient heat transfer. The resulting heat exchange bundle is economical and can be coiled into the desired shape. Also disclosed are specific embodiments such as the one in which the tubes are expanded against their windings after being coiled to insure highly efficient heat transfer.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

283

Heat and mass exchanger  

Science Conference Proceedings (OSTI)

A mass and heat exchanger includes at least one first substrate with a surface for supporting a continuous flow of a liquid thereon that either absorbs, desorbs, evaporates or condenses one or more gaseous species from or to a surrounding gas; and at least one second substrate operatively associated with the first substrate. The second substrate includes a surface for supporting the continuous flow of the liquid thereon and is adapted to carry a heat exchange fluid therethrough, wherein heat transfer occurs between the liquid and the heat exchange fluid.

Lowenstein, Andrew (Princeton, NJ); Sibilia, Marc J. (Princeton, NJ); Miller, Jeffrey A. (Hopewell, NJ); Tonon, Thomas (Princeton, NJ)

2011-06-28T23:59:59.000Z

284

"Building Energy Data Exchange Specification"  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building Energy Data Exchange Specification" "Version 2.3" "applicationvnd.ms-excel" "Overview:" "This document describes the DOE Building Energy Data Exchange Specification...

285

Green Exchange | Open Energy Information  

Open Energy Info (EERE)

Green Exchange Jump to: navigation, search Name Green Exchange Place New York, New York Zip NY 10282 Product String representation "The Green Excha ... es marketplace." is too...

286

Trade, Interdependence and Exchange Rates  

E-Print Network (OSTI)

period is 1971-2000. All inflation rates and predictions areof Goods and Real Exchange Rate Fluc- tuations,” mimeo [5]Between Trade and Exchange Rate Volatility,” mimeo [6

Fitzgerald, Doireann

2004-01-01T23:59:59.000Z

287

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Biofuels Biofuels Biotechnology and Medecine Biotechnology & Medicine Chemistry Developing World Energy Efficient Technologies Energy Environmental Technologies...

288

Exchange Rates and Fundamentals  

E-Print Network (OSTI)

We show analytically that in a rational expectations present-value model, an asset price manifests near–random walk behavior if fundamentals are I(1) and the factor for discounting future fundamentals is near one. We argue that this result helps explain the well-known puzzle that fundamental variables such as relative money supplies, outputs, inflation, and interest rates provide little help in predicting changes in floating exchange rates. As well, we show that the data do exhibit a related link suggested by standard models—that the exchange rate helps predict these fundamentals. The implication is that exchange rates and fundamentals are linked in a way that is broadly consistent with asset-pricing models of the exchange rate. I.

Charles Engel; Kenneth D. West

2005-01-01T23:59:59.000Z

289

Active microchannel heat exchanger  

DOE Patents (OSTI)

The present invention is an active microchannel heat exchanger with an active heat source and with microchannel architecture. The active microchannel heat exchanger has (a) an exothermic reaction chamber; (b) an exhaust chamber; and (c) a heat exchanger chamber in thermal contact with the exhaust chamber, wherein (d) heat from the exothermic reaction chamber is convected by an exothermic reaction exhaust through the exhaust chamber and by conduction through a containment wall to the working fluid in the heat exchanger chamber thereby raising a temperature of the working fluid. The invention is particularly useful as a liquid fuel vaporizer and/or a steam generator for fuel cell power systems, and as a heat source for sustaining endothermic chemical reactions and initiating exothermic reactions.

Tonkovich, Anna Lee Y. (Pasco, WA); Roberts, Gary L. (West Richland, WA); Call, Charles J. (Pasco, WA); Wegeng, Robert S. (Richland, WA); Wang, Yong (Richland, WA)

2001-01-01T23:59:59.000Z

290

Greywater heat exchanger  

SciTech Connect

A kilowatt meter and water meter were installed to monitor pregreywater usage. The design considerations, the heat exchanger construction and installation, and the monitoring of usage levels are described.

Holmberg, D.

1983-11-21T23:59:59.000Z

291

Classical Heat Exchanger Analysis  

Science Conference Proceedings (OSTI)

The industry methodology for heat exchanger performance and uncertainty analysis has been successful in dealing with the requirements of the Nuclear Regulatory Commission (NRC) issued in 1989 for safety-related service water systems, but has been found to have several significant limitations. The general objective of this report is to improve the industry performance and uncertainty analysis methodology and guidelines for implementation and analysis of heat exchanger performance. ...

2013-05-31T23:59:59.000Z

292

Radial flow heat exchanger  

DOE Patents (OSTI)

A radial flow heat exchanger (20) having a plurality of first passages (24) for transporting a first fluid (25) and a plurality of second passages (26) for transporting a second fluid (27). The first and second passages are arranged in stacked, alternating relationship, are separated from one another by relatively thin plates (30) and (32), and surround a central axis (22). The thickness of the first and second passages are selected so that the first and second fluids, respectively, are transported with laminar flow through the passages. To enhance thermal energy transfer between first and second passages, the latter are arranged so each first passage is in thermal communication with an associated second passage along substantially its entire length, and vice versa with respect to the second passages. The heat exchangers may be stacked to achieve a modular heat exchange assembly (300). Certain heat exchangers in the assembly may be designed slightly differently than other heat exchangers to address changes in fluid properties during transport through the heat exchanger, so as to enhance overall thermal effectiveness of the assembly.

Valenzuela, Javier (Hanover, NH)

2001-01-01T23:59:59.000Z

293

LANL: Ion Beam Materials Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Ion Beam Materials Laboratory (IBML) is a Los Ion Beam Materials Laboratory (IBML) is a Los Alamos National Laboratory resource devoted to materi- als research through the use of ion beams. Current major research areas include surface characterization through ion beam analysis techniques, surface modification and materials synthesis through ion implantation technology, and radiation damage stud- ies in gases, liquids, and solids. The laboratory's core is a 3.2 MV tandem ion accelerator and a 200 kV ion implanter together with several beam lines. Attached to each beam line is a series of experimental stations that support various research programs. The operation of IBML and its interactions with users are organized around core facilities and experimental stations. The IBML provides and operates the core facilities as well as supports

294

Ion collection by a conducting sphere in a magnetized or drifting collisional plasma  

E-Print Network (OSTI)

Ion collection by dust grains and probes in plasmas with a neutral background is of interest in the study of both space and terrestrial plasmas, where charge-exchange collisions can play an important role in ion collection. ...

Haakonsen, Christian Bernt, 1985-

2011-01-01T23:59:59.000Z

295

Silane discharge ion chemistry  

SciTech Connect

Silane dc, rf, and dc proximity discharges have been studied using mass spectroscopic measurements of the positive ions as a detailed diagnostic for the type of discharge used to produce hydrogenated amorphous silicon solar photovoltaic cells. The properties and quality of these films depends in a very complex way upon the interactions of the many reactive neutral and ion species in the discharge. Qualitative models of the ion chemical processes in these discharges have been developed from experimental measurements. Knowledge of the ion-molecule and electron-molecule collision cross sections is important to any attempt at understanding silane discharge chemistry. Consequently, the electron impact ionization cross sections for silane and disilane have been measured and for comparison purposes also for methane and ethane. In addition, the rate coefficients for charge exchange reactions of He , Ne , and Ar with silane, disilane, methane, and ethane have been measured as these are important to understanding discharges in inert gas-silane mixtures. A detailed quantitative model of the cathode sheath region of a silane dc discharge has been developed by extending the best recent calculation of the electron motion in the sheath to a self-consistent form which includes the ion motion. This model is used with comparison of silane dc discharge data to diagnose the ion chemistry occurring in the sheath region of silane dc discharge. The understanding of the discharge ion chemical processes that have been gained in this study represent an important step toward understanding the chemical and physical processes leading to film growth.

Chatham, R.H. III

1984-01-01T23:59:59.000Z

296

Ultracapacitor Technologies and Application in Hybrid and Electric Vehicles  

E-Print Network (OSTI)

AF, Miller M. Emerging Lithium-ion Battery Technologies formodules of several lithium-ion battery chemistries have beenkg. Using a high power lithium-ion battery with an energy

Burke, Andy

2009-01-01T23:59:59.000Z

297

Testing technology  

SciTech Connect

This bulletin from Sandia National Laboratories presents current research highlights in testing technology. Ion microscopy offers new nondestructive testing technique that detects high resolution invisible defects. An inexpensive thin-film gauge checks detonators on centrifuge. Laser trackers ride the range and track helicopters at low-level flights that could not be detected by radar. Radiation transport software predicts electron/photon effects via cascade simulation. Acoustic research in noise abatement will lead to quieter travelling for Bay Area Rapid Transport (BART) commuters.

Not Available

1993-10-01T23:59:59.000Z

298

Ceramic heat exchangers: manufacturing techniques and performance  

SciTech Connect

The objective of the ceramic heat pipe program being conducted at Los Alamos is demonstration of the practical feasibility of this technology for the solution of severe high temperature recuperation functions. Ceramic heat pipe recuperators have been theoretically shown to offer distinct advantages over conventional ceramic heat exchangers from the standpoint of efficiency of heat recuperation and economics. The main stumbling block to their widespread utilization is related to the problems of materials for construction and the details of fabrication and assembly. The performance objectives of ceramic heat pipes and some aspects of the materials technology program aimed at solving the problem of economic ceramic heat pipe fabrication are described.

Merrigan, M.A.; Sandstrom, D.J.

1981-01-01T23:59:59.000Z

299

Why are there no volume Li-ion battery manufacturers in the ...  

Science Conference Proceedings (OSTI)

... There No Volume Lithium-Ion Battery Manufacturers in ... R&D; US Manufacturing of Li-ion Batteries. ... The Innovation Process for Battery Technologies. ...

2008-07-28T23:59:59.000Z

300

Model for the Fabrication of Tailored Materials for Lithium-Ion...  

NLE Websites -- All DOE Office Websites (Extended Search)

Model for the Fabrication of Tailored Materials for Lithium-Ion Batteries Technology available for licensing: Safe, stable and high-capacity cathodes for lithium-ion batteries...

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Available Technologies: Modified Metal Organic Framework (MOF) as ...  

APPLICATIONS OF TECHNOLOGY: Lithium-ion batteries for electric vehicles and consumer electronics ; ADVANTAGES: Safer; Reduces battery weight; Improved conductivity

302

Method and apparatus for removing ions from soil  

DOE Patents (OSTI)

This invention is comprised of a method and apparatus for selectively removing species of ions from an area of soil. Permeable membranes and impregnated with an ion exchange resin that is specific to one or more species of chemical ions are inserted into ground in close proximity to, and on opposing sides of, a soil area of interest. An electric potential is applied across electrodes and to cause the migration of ions out of soil area toward the membranes. Preferably, the resin exchanges ions of sodium or hydrogen for ions of mercury that it captures from soil area. Once membranes and become substantially saturated with mercury ions, the potential applied across electrodes and is discontinued and membranes and are preferably removed from soil for storage or recovery of the ions. The membranes are also preferably impregnated with a buffer to inhibit the effect of the hydrolysis of water by current from the electrodes.

Bibler, J.P.

1992-12-31T23:59:59.000Z

303

Laser Assisted Emittance Exchange  

Science Conference Proceedings (OSTI)

We describe here the laser assisted emittance exchange (LAEE) technique. A laser operating in the transverse mode (TEM10 or TEM01) is used to interact with the electron beam in a dispersive region and to initiate the transverse-to-longitudinal emittance exchange. It is shown that with the LAEE one can generate an electron beam with ultralow transverse emittance, which allows one to significantly bring down the size of an X-ray free electron laser (FEL) and greatly extend the availability of these light sources. The technique can also be used to enhance the performances of X-ray FELs in storage rings. The timing and energy jitter problems for the standard emittance exchange and LAEE techniques are also discussed.

Xiang, Dao; /SLAC

2012-06-11T23:59:59.000Z

304

Modular heat exchanger  

DOE Patents (OSTI)

A heat exchanger for use in nuclear reactors includes a heat exchange tube bundle formed from similar modules each having a hexagonal shroud containing a large number of thermally conductive tubes which are connected with inlet and outlet headers at opposite ends of each module, the respective headers being adapted for interconnection with suitable inlet and outlet manifold means. In order to adapt the heat exchanger for operation in a high temperature and high pressure environment and to provide access to all tube ports at opposite ends of the tube bundle, a spherical tube sheet is arranged in sealed relation across the chamber with an elongated duct extending outwardly therefrom to provide manifold means for interconnection with the opposite end of the tube bundle.

Culver, Donald W. (Poway, CA)

1978-01-01T23:59:59.000Z

305

The Neural Heat Exchanger  

E-Print Network (OSTI)

The "Neural Heat Exchanger" is an alternative, supervised learning method for multi-layer neural nets. It is inspired by the physical heat exchanger. Unlike backprop, it is entirely local. This makes its parallel implementation trivial. It was first presented during occasional talks since 1990, and is closely related to Hinton et. al.'s recent Helmholtz Machine (1995). For the first time, this paper presents the basic ideas in written form. To fully understand the Neural Heat Exchanger's advantages and limitations, however, much theoretical and empirical work remains to be done. 1 Introduction Most conventional supervised algorithms for multi-layer neural nets are not local in space and time. Backprop, for instance, requires a global control mechanism that first propagates activation signals through all successive layers, then waits until the error signals come back, then changes the weights. Many suspect, however, that the brain does use an entirely local algorithm. One advantage of...

Jürgen Schmidhuber

1996-01-01T23:59:59.000Z

306

Experimental Evaluation of a Negative Ion Source for a Heavy Ion Fusion Negative Ion Driver  

DOE Green Energy (OSTI)

Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photo-detached to neutrals. To test the ability to make suitable quality beams, an experiment was conducted at Lawrence Berkeley National Laboratory using chlorine in an RF-driven ion source. Without introducing any cesium (which is required to enhance negative ion production in hydrogen ion sources) a negative chlorine current density of 45 mA/cm{sup 2} was obtained under the same conditions that gave 57 45 mA/cm{sup 2} of positive chlorine, suggesting the presence of nearly as many negative ions as positive ions in the plasma near the extraction plane. The negative ion spectrum was 99.5% atomic chlorine ions, with only 0.5% molecular chlorine, and essentially no impurities. Although this experiment did not incorporate the type of electron suppression technology that i s used in negative hydrogen beam extraction, the ratio of co-extracted electrons to Cl{sup -} was as low as 7 to 1, many times lower than the ratio of their mobilities, suggesting that few electrons are present in the near-extractor plasma. This, along with the near-equivalence of the positive and negative ion currents, suggests that the plasma in this region was mostly an ion-ion plasma. The negative chlorine current density was relatively insensitive to pressure, and scaled linearly with RF power. If this linear scaling continues to hold at higher RF powers, it should permit current densities of 100 45 mA/cm{sup 2}, sufficient for present heavy ion fusion injector concepts. The effective ion temperatures of the positive and negative ions appeared to be similar and relatively low for a plasma source.

L.R. Grisham, S.K. Hahto, S.T. Hahto, J.W. Kwan, and K.N. Leung

2004-06-16T23:59:59.000Z

307

Manufacturing Science and Technology: Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Thin Films Thin Films PDF format (189 kb) Multi Layer Thin Films Multi Layer Thin Films Planetary Sputtering SystemsPlanetary Sputtering Systems Planetary Sputtering Systems The Thin Film laboratory within Manufacturing Science & Technology provides a variety of vapor deposition processes and facilities for cooperative research and development. Available capabilities include electron beam evaporation, sputter deposition, reactive deposition processes, atomic layer deposition (ALD) and specialized techniques such as focused ion beam induced chemical vapor deposition. Equipment can be reconfigured for prototyping or it can be dedicated to long-term research, development and manufacturing. Most sputter and evaporative deposition systems are capable of depositing multiple materials.

308

TECHNOLOGY ADMINISTRATION  

E-Print Network (OSTI)

This report originated in the authors ’ participation in a multi-country study of national innovation systems and their impact on new technology development, sponsored by the Organization for Economic Cooperation and Development (OECD). Our task was to look at the U.S. national innovation system’s impact on the commercial development of Proton Exchange Membrane (PEM) fuel cells for residential power applications. Early drivers of PEM fuel cell innovation were the aerospace and defense programs, in particular the National Aeronautics and Space Administration (NASA), which used fuel cells on its spacecraft. In the early 1990s, deregulation hit the electric utility industry, which made utilities and entrepreneurs see the potential in generating electricity from distributed power. Throughout the 1990s, the Department of Energy funded a significant portion of civilian fuel cell research, while the Department of Defense and NASA funded more esoteric military and space applications. In 1998, the Department of Commerce’s Advanced Technology Program (ATP) awarded the first of 25 fuel cell projects, as prospects for adoption and commercialization of fuel cell technologies improved.

John M. Nail; Gary Anderson; Gerald Ceasar; Christopher J. Hansen; John M. Nail; Gerald Ceasar; Christopher J. Hansen; Carlos M. Gutierrez; Hratch G. Samerjian; Acting Director; Marc G. Stanley; Director Abstract

2005-01-01T23:59:59.000Z

309

ENGINEERING TECHNOLOGY Engineering Technology  

E-Print Network (OSTI)

, Mechatronics Technology, and Renewable Energy Technology. Career Opportunities Graduates of four origin, gender, age, marital status, sexual orientation, status as a Vietnam-era veteran, or disability

310

Technology Transfer: Available Technologies  

Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you ...

311

Ionic liquid ion sources as a unique and versatile option in FIB applications  

Science Conference Proceedings (OSTI)

This work discusses the potential applicability of point sources to focused ion beam (FIB) technology based on molten salts at room temperature, known as ionic liquid ion sources (ILIS). The beam shape and divergence angles for ILIS using the ionic liquid ... Keywords: Focused ion beam, High brightness, Ion etching, Ion source, Ionic liquid, Reactive ion

Carla Perez-Martinez; Stéphane Guilet; Jacques Gierak; Paulo Lozano

2011-08-01T23:59:59.000Z

312

Chemical exchange program analysis.  

SciTech Connect

As part of its EMS, Sandia performs an annual environmental aspects/impacts analysis. The purpose of this analysis is to identify the environmental aspects associated with Sandia's activities, products, and services and the potential environmental impacts associated with those aspects. Division and environmental programs established objectives and targets based on the environmental aspects associated with their operations. In 2007 the most significant aspect identified was Hazardous Materials (Use and Storage). The objective for Hazardous Materials (Use and Storage) was to improve chemical handling, storage, and on-site movement of hazardous materials. One of the targets supporting this objective was to develop an effective chemical exchange program, making a business case for it in FY07, and fully implementing a comprehensive chemical exchange program in FY08. A Chemical Exchange Program (CEP) team was formed to implement this target. The team consists of representatives from the Chemical Information System (CIS), Pollution Prevention (P2), the HWMF, Procurement and the Environmental Management System (EMS). The CEP Team performed benchmarking and conducted a life-cycle analysis of the current management of chemicals at SNL/NM and compared it to Chemical Exchange alternatives. Those alternatives are as follows: (1) Revive the 'Virtual' Chemical Exchange Program; (2) Re-implement a 'Physical' Chemical Exchange Program using a Chemical Information System; and (3) Transition to a Chemical Management Services System. The analysis and benchmarking study shows that the present management of chemicals at SNL/NM is significantly disjointed and a life-cycle or 'Cradle-to-Grave' approach to chemical management is needed. This approach must consider the purchasing and maintenance costs as well as the cost of ultimate disposal of the chemicals and materials. A chemical exchange is needed as a mechanism to re-apply chemicals on site. This will not only reduce the quantity of unneeded chemicals and the amount spent on new purchases, but will also avoid disposal costs. If SNL/NM were to realize a 5 percent reduction in chemical inventory and a 10 percent reduction in disposal of unused chemicals the total savings would be $189, 200 per year.

Waffelaert, Pascale

2007-09-01T23:59:59.000Z

313

A corrosive resistant heat exchanger  

DOE Patents (OSTI)

A corrosive and erosive resistant heat exchanger which recovers heat from a contaminated heat stream. The heat exchanger utilizes a boundary layer of innocuous gas, which is continuously replenished, to protect the heat exchanger surface from the hot contaminated gas. The innocuous gas is pumped through ducts or perforations in the heat exchanger wall. Heat from the heat stream is transferred by radiation to the heat exchanger wall. Heat is removed from the outer heat exchanger wall by a heat recovery medium. 3 figs., 3 tabs.

Richlen, S.L.

1987-08-10T23:59:59.000Z

314

The evolution of ion charge states in cathodic vacuum arc plasmas: a review  

Science Conference Proceedings (OSTI)

Cathodic vacuum arc plasmas are known to contain multiply charged ions. 20 years after “Pressure Ionization: its role in metal vapour vacuum arc plasmas and ion sources” appeared in vol. 1 of Plasma Sources Science and Technology, it is a great opportunity to re-visit the issue of pressure ionization, a non-ideal plasma effect, and put it in perspective to the many other factors that influence observable charge state distributions, such as the role of the cathode material, the path in the density-temperature phase diagram, the “noise” in vacuum arc plasma as described by a fractal model approach, the effects of external magnetic fields and charge exchange collisions with neutrals. A much more complex image of the vacuum arc plasma emerges putting decades of experimentation and modeling in perspective.

Anders, Andre

2011-12-18T23:59:59.000Z

315

Physics and technology in the ion-cyclotron range of frequency on Tore Supra and TITAN test facility: implication for ITER  

SciTech Connect

To support the design of an ITER ion-cyclotron range of frequency heating (ICRH) system and to mitigate risks of operation in ITER, CEA has initiated an ambitious Research & Development program accompanied by experiments on Tore Supra or test-bed facility together with a significant modelling effort. The paper summarizes the recent results in the following areas: Comprehensive characterization (experiments and modelling) of a new Faraday screen concept tested on the Tore Supra antenna. A new model is developed for calculating the ICRH sheath rectification at the antenna vicinity. The model is applied to calculate the local heat flux on Tore Supra and ITER ICRH antennas. Full-wave modelling of ITER ICRH heating and current drive scenarios with the EVE code. With 20 MW of power, a current of 400 kA could be driven on axis in the DT scenario. Comparison between DT and DT(3He) scenario is given for heating and current drive efficiencies. First operation of CW test-bed facility, TITAN, designed for ITER ICRH components testing and could host up to a quarter of an ITER antenna. R&D of high permittivity materials to improve load of test facilities to better simulate ITER plasma antenna loading conditions.

Litaudon, X [CEA, France; Bernard, J. M. [CEA, IRFM, France; Colas, L. [CEA, France; Dumont, R. J. [CEA Cadarache, St. Paul lex Durance, France; Argouarch, A. [CEA Cadarache, St. Paul lex Durance, France; Bottollier-Curtet, H. [CEA, IRFM, France; Bremond, S. [CEA, IRFM, France; Champeaux, S. [CEA, IRFM, France; Corre, Y. [CEA Cadarache, St. Paul lex Durance, France; Dumortier, P. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Firdaouss, M. [CEA, IRFM, France; Guilhem, D. [CEA, IRFM, France; Gunn, J. P. [CEA, IRFM, France; Gouard, Ph. [CEA, DAM, DIF, Arpajon cedex, France; Hoang, G T [CEA, IRFM, France; Jacquot, Jonathan [CEA, IRFM, France; Klepper, C Christopher [ORNL; Kubic, M. [CEA, IRFM, France; Kyrytsya, V. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Lombard, G. [CEA, IRFM, France; Milanesio, D. [Politecnico di Torino; Messiaen, A. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Mollard, P. [CEA, IRFM, France; Meyer, O. [CEA Cadarache, St. Paul lex Durance, France; Zarzoso, D. [CEA, IRFM, France

2013-01-01T23:59:59.000Z

316

Calculation of exchange energies using algebraic perturbation theory  

Science Conference Proceedings (OSTI)

An algebraic perturbation theory is presented for efficient calculations of localized states and hence of exchange energies, which are the differences between low-lying states of the valence electron of a molecule, formed by the collision of an ion Y{sup +} with an atom X. For the case of a homonuclear molecule these are the gerade and ungerade states and the exchange energy is an exponentially decreasing function of the internuclear distance. For such homonuclear systems the theory is used in conjunction with the Herring-Holstein technique to give accurate exchange energies for a range of intermolecular separations R. Since the perturbation parameter is essentially 1/R, this method is suitable for large R. In particular, exchange energies are calculated for X{sub 2}{sup +} systems, where X is H, Li, Na, K, Rb, or Cs.

Burrows, B. L. [Mathematics Section Faculty of Computing, Engineering and Technology Staffordshire University, Beaconside, Stafford ST18 0DG (United Kingdom); Dalgarno, A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States); Cohen, M. [Department of Physical Chemistry, Hebrew University of Jerusalem, Jerusalem IL-91904 (Israel)

2010-04-15T23:59:59.000Z

317

Available Technologies: Diamond Watermarking with Nitrogen ...  

See More Ion Sources and Beams Technologies. Contact Us. Receive Customized Tech Alerts. Tech Transfer Site Map. Last updated: 07/12/2013.

318

Microsoft PowerPoint - 1-07 Mason DOE EM Waste Processing Technology...  

NLE Websites -- All DOE Office Websites (Extended Search)

plants: Studsvik Processing Facility: Ion exchange resins (45" diameter FBSR) DOE Idaho Integrated Waste Treatment Unit: SBW treatment (48" diameter FBSR) DOE...

319

Chicago Climate Exchange CCX | Open Energy Information  

Open Energy Info (EERE)

Chicago Climate Exchange CCX Jump to: navigation, search Name Chicago Climate Exchange (CCX) Place Chicago, Illinois Zip 60604 Product Chicago Climate Exchange (CCX) is aiming at...

320

Predicting particle deposition on HVAC heat exchangers  

E-Print Network (OSTI)

gas-side of finned tube heat- exchangers. Journal of Heatsurface interactions in heat exchanger fouling. Journal ofParticle Deposition on Heat Exchangers Epstein, N. , 1988.

Siegel, J A; Nazaroff, William W

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

THERMOSIPHON WATER HEATERS WITH HEAT EXCHANGERS  

E-Print Network (OSTI)

the collector and heat exchanger (Uc and Uhel · ~Constant tNational Standard, "Solar Heat Exchangers," ANSI/ASME SES 1,connecting pipes header heat exchanger insulation maximum

Mertol, Atila

2012-01-01T23:59:59.000Z

322

Heat exchanger tube mounts  

DOE Patents (OSTI)

A heat exchanger in which tubes are secured to a tube sheet by internal bore welding is described. The tubes may be moved into place in preparation for welding with comparatively little trouble. A number of segmented tube support plates are provided which allow a considerable portion of each of the tubes to be moved laterally after the end thereof has been positioned in preparation for internal bore welding to the tube sheet. (auth)

Wolowodiuk, W.; Anelli, J.; Dawson, B.E.

1974-01-01T23:59:59.000Z

323

New Technology in Condensate Polishing  

Science Conference Proceedings (OSTI)

Using carboxylic acid ion-exchange resins instead of sulfonic acid resins in precoat filters reduces sulfate contamination of feedwater by resins carried into steam generators and boilers. Corrosion is further reduced by precoating condensate polishers with activated carbon, which accelerates low-temperature reaction of oxygen with hydrazine.

1992-08-01T23:59:59.000Z

324

Towards a cryogenic planar ion trap for Sr-88  

E-Print Network (OSTI)

This thesis describes experiments with ion traps constructed with electrodes in a single two-dimensional plane, and ion traps operated in a cryogenic environment at 77K and 4K temperatures. These two technologies address ...

Bakr, Waseem (Waseem S.)

2006-01-01T23:59:59.000Z

325

Technology Search  

home \\ technologies \\ search. Technologies: Ready-to-Sign Licenses: Software: Patents: Technology Search. ... Operated by Lawrence Livermore National Security, LLC, ...

326

Performance Characteristics of Lithium-ion Batteries of Various Chemistries for Plug-in Hybrid Vehicles  

E-Print Network (OSTI)

for vehicle applications. 2 Lithium-ion battery chemistriesThe lithium-ion battery technology used for consumerfrom EIG Figure 4: Lithium-ion battery modules for testing

Burke, Andrew; Miller, Marshall

2009-01-01T23:59:59.000Z

327

Enhanced life ion source for germanium and carbon ion implantation  

SciTech Connect

Germanium and carbon ions represent a significant portion of total ion implantation steps in the process flow. Very often ion source materials that used to produce ions are chemically aggressive, especially at higher temperatures, and result in fast ion source performance degradation and a very limited lifetime [B.S. Freer, et. al., 2002 14th Intl. Conf. on Ion Implantation Technology Proc, IEEE Conf. Proc., p. 420 (2003)]. GeF{sub 4} and CO{sub 2} are commonly used to generate germanium and carbon beams. In the case of GeF{sub 4} controlling the tungsten deposition due to the de-composition of WF{sub 6} (halogen cycle) is critical to ion source life. With CO{sub 2}, the materials oxidation and carbon deposition must be controlled as both will affect cathode thermionic emission and anti-cathode (repeller) efficiencies due to the formation of volatile metal oxides. The improved ion source design Extended Life Source 3 (Eterna ELS3) together with its proprietary co-gas material implementation has demonstrated >300 hours of stable continuous operation when using carbon and germanium ion beams. Optimizing cogas chemistries retard the cathode erosion rate for germanium and carbon minimizes the adverse effects of oxygen when reducing gas is introduced for carbon. The proprietary combination of hardware and co-gas has improved source stability and the results of the hardware and co-gas development are discussed.

Hsieh, Tseh-Jen; Colvin, Neil; Kondratenko, Serguei [Axcelis Technologies, Inc. 108 Cherry Hill Drive, Beverly, MA 01915 (United States)

2012-11-06T23:59:59.000Z

328

Building Technologies Office: Emerging Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Emerging Technologies Emerging Technologies Printable Version Share this resource Send a link to Building Technologies Office: Emerging Technologies to someone by E-mail Share Building Technologies Office: Emerging Technologies on Facebook Tweet about Building Technologies Office: Emerging Technologies on Twitter Bookmark Building Technologies Office: Emerging Technologies on Google Bookmark Building Technologies Office: Emerging Technologies on Delicious Rank Building Technologies Office: Emerging Technologies on Digg Find More places to share Building Technologies Office: Emerging Technologies on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Technology Research, Standards, & Codes Popular Links Success Stories Previous Next Lighten Energy Loads with System Design.

329

Batteries for Plug-in Hybrid Electric Vehicles (PHEVs): Goals and the State of Technology circa 2008  

E-Print Network (OSTI)

cost. Third, lithium-ion (Li-Ion) battery designs are betterclass of advanced battery using lithium-ion chemistry. LMS –Li-Ion battery technologies as follows: LCO: Lithium cobalt

Axsen, Jonn; Burke, Andy; Kurani, Kenneth S

2008-01-01T23:59:59.000Z

330

O--H charge exchange in cold, dense, hydrogen plasmas  

DOE Green Energy (OSTI)

It is pointed out that the accidentally resonant charge exchange reaction, O/sup +/ + H/sup 0/ reverse arrows O/sup 0/ + H/sup +/, is an important mechanism for causing the loss of singly charged oxygen ions from oxygen contaminated hydrogen plasmas. Results of a Monte Carlo simulation are presented which show that the fraction of oxygen lost because of charge exchange exceeds /sup 1///sub 3/ when the parameters n/sub e/ approx. 10/sup 13/cm/sup -3/, n/sub H//sup o/ approx. 10/sup 11/cm/sup -3/ and T/sub e/ approx. 3 eV are attained.

Cohen, S.A.; Dylla, H.F.

1977-05-01T23:59:59.000Z

331

ION SWITCH  

DOE Patents (OSTI)

An ion switch capable of transferring large magnitudes of power is described. An ion switch constructed in accordance with the invention includes a pair of spaced control electrodes disposed in a highly evacuated region for connection in a conventional circuit to control the passing of power therethrough. A controllable ionic conduction path is provided directiy between the control electrodes by a source unit to close the ion switch. Conventional power supply means are provided to trigger the source unit and control the magnitude, durations and pulse repetition rate of the aforementioned ionic conduction path.

Cook, B.

1959-02-10T23:59:59.000Z

332

High Capacity Lithium-Ion Battery Characterization for Vehicular Applications.  

E-Print Network (OSTI)

?? A lithium-ion battery is one of the key research topics in energy storage technologies. Major characterization tests such as static capacity, open circuit voltage… (more)

Ahmed, Sazzad Hossain

2012-01-01T23:59:59.000Z

333

Electrode Materials for Rechargeable Lithium-Ion Batteries: A...  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrode Materials for Rechargeable Lithium-Ion Batteries: A New Synthetic Approach Technology available for licensing: New high-energy cathode materials for use in rechargeable...

334

Novel Redox Shuttles for Overcharge Protection of Lithium-Ion...  

NLE Websites -- All DOE Office Websites (Extended Search)

Novel Redox Shuttles for Overcharge Protection of Lithium-Ion Batteries Technology available for licensing: Electrolytes containing novel redox shuttles (electron transporters) for...

335

Surface Modification Agents for Lithium-Ion Batteries | Argonne...  

NLE Websites -- All DOE Office Websites (Extended Search)

Surface Modification Agents for Lithium-Ion Batteries Technology available for licensing: A process to modify the surface of the active material used in an electrochemical device...

336

Nanopost Arrays Anchor Molecules, Improve Ion Yields for Laser ...  

ORNL 2011-G00228/jcn UT-B ID 200902284 09.2011 Nanopost Arrays Anchor Molecules, Improve Ion Yields for Laser Mass Spectrometry Technology Summary

337

Nanotube composite anode materials improve lithium-ion battery ...  

Rechargeable lithium-ion batteries are a critical technology for many applications, ... while simultaneously providing enhanced stability at a lower c ...

338

Advanced Lithium Ion Battery Materials for Fast Charging and ...  

Advanced Lithium Ion Battery Materials for Fast Charging and Improved Safety Technology Summary ... a great low cost substitute for cobalt, were

339

Hybrid Aluminum-Lithium Ion Battery having Enhanced Power Density  

Hybrid Aluminum-Lithium Ion Battery having Enhanced Power Density Note: The technology described above is an early stage opportunity. Licensing rights to this ...

340

Technology Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Homeland Security & Defense Homeland Security & Defense Information Technology & Communications Information Technology & Communications Sensors, Electronics &...

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

NGNP Process Heat Utilization: Liquid Metal Phase Change Heat Exchanger  

DOE Green Energy (OSTI)

One key long-standing issue that must be overcome to fully realize the successful growth of nuclear power is to determine other benefits of nuclear energy apart from meeting the electricity demands. The Next Generation Nuclear Plant (NGNP) will most likely be producing electricity and heat for the production of hydrogen and/or oil retrieval from oil sands and oil shale to help in our national pursuit of energy independence. For nuclear process heat to be utilized, intermediate heat exchange is required to transfer heat from the NGNP to the hydrogen plant or oil recovery field in the most efficient way possible. Development of nuclear reactor - process heat technology has intensified the interest in liquid metals as heat transfer media because of their ideal transport properties. Liquid metal heat exchangers are not new in practical applications. An important rational for considering liquid metals is the potential convective heat transfer is among the highest known. Thus explains the interest in liquid metals as coolant for intermediate heat exchange from NGNP. For process heat it is desired that, intermediate heat exchangers (IHX) transfer heat from the NGNP in the most efficient way possible. The production of electric power at higher efficiency via the Brayton Cycle, and hydrogen production, requires both heat at higher temperatures and high effectiveness compact heat exchangers to transfer heat to either the power or process cycle. Compact heat exchangers maximize the heat transfer surface area per volume of heat exchanger; this has the benefit of reducing heat exchanger size and heat losses. High temperature IHX design requirements are governed in part by the allowable temperature drop between the outlet and inlet of the NGNP. In order to improve the characteristics of heat transfer, liquid metal phase change heat exchangers may be more effective and efficient. This paper explores the overall heat transfer characteristics and pressure drop of the phase change heat exchanger with Na as the heat exchanger coolant. In order to design a very efficient and effective heat exchanger one must optimize the design such that we have a high heat transfer and a lower pressure drop, but there is always a trade-off between them. Based on NGNP operational parameters, a heat exchanger analysis with the sodium phase change will be presented to show that the heat exchanger has the potential for highly effective heat transfer, within a small volume at reasonable cost.

Piyush Sabharwall; Mike Patterson; Vivek Utgikar; Fred Gunnerson

2008-09-01T23:59:59.000Z

342

ION SOURCE  

DOE Patents (OSTI)

An ion source is described and comprises an arc discharge parallel to the direction of and inside of a magnetic field. an accelerating electrode surrounding substantially all of the discharge except for ion exit apertures, and means for establishing an electric field between that electrode and the arc discharge. the electric field being oriented at an acute angle to the magnetic field. Ions are drawn through the exit apertures in the accelrating electrcde in a direction substantially divergent to the direction of the magnetic field and so will travel in a spiral orbit along the magnetic field such that the ions will not strike the source at any point in their orbit within the magnetic field.

Blue, C.W.; Luce, J.S.

1960-07-19T23:59:59.000Z

343

ION SOURCE  

DOE Patents (OSTI)

The ion source described essentially eliminater the problem of deposits of nonconducting materials forming on parts of the ion source by certain corrosive gases. This problem is met by removing both filament and trap from the ion chamber, spacing them apart and outside the chamber end walls, placing a focusing cylinder about the filament tip to form a thin collimated electron stream, aligning the cylinder, slits in the walls, and trap so that the electron stream does not bombard any part in the source, and heating the trap, which is bombarded by electrons, to a temperature hotter than that in the ion chamber, so that the tendency to build up a deposit caused by electron bombardment is offset by the extra heating supplied only to the trap.

Leland, W.T.

1960-01-01T23:59:59.000Z

344

Large Scale Geothermal Exchange System for Residential, Office and Retail  

Open Energy Info (EERE)

Geothermal Exchange System for Residential, Office and Retail Geothermal Exchange System for Residential, Office and Retail Development Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Large Scale Geothermal Exchange System for Residential, Office and Retail Development Project Type / Topic 1 Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects Project Description RiverHeath will be a new neighborhood, with residences, shops, restaurants, and offices. The design incorporates walking trails, community gardens, green roofs, and innovative stormwater controls. A major component of the project is our reliance on renewable energy. One legacy of the land's industrial past is an onsite hydro-electric facility which formerly powered the paper factories. The onsite hydro is being refurbished and will furnish 100% of the project's electricity demand.

345

Heat exchanger-accumulator  

DOE Patents (OSTI)

What is disclosed is a heat exchanger-accumulator for vaporizing a refrigerant or the like, characterized by an upright pressure vessel having a top, bottom and side walls; an inlet conduit eccentrically and sealingly penetrating through the top; a tubular overflow chamber disposed within the vessel and sealingly connected with the bottom so as to define an annular outer volumetric chamber for receiving refrigerant; a heat transfer coil disposed in the outer volumetric chamber for vaporizing the liquid refrigerant that accumulates there; the heat transfer coil defining a passageway for circulating an externally supplied heat exchange fluid; transferring heat efficiently from the fluid; and freely allowing vaporized refrigerant to escape upwardly from the liquid refrigerant; and a refrigerant discharge conduit penetrating sealingly through the top and traversing substantially the length of the pressurized vessel downwardly and upwardly such that its inlet is near the top of the pressurized vessel so as to provide a means for transporting refrigerant vapor from the vessel. The refrigerant discharge conduit has metering orifices, or passageways, penetrating laterally through its walls near the bottom, communicating respectively interiorly and exteriorly of the overflow chamber for controllably carrying small amounts of liquid refrigerant and oil to the effluent stream of refrigerant gas.

Ecker, Amir L. (Dallas, TX)

1980-01-01T23:59:59.000Z

346

Small-Scale Testing of Potential Small Column Ion Exchange ...  

Hockmeyer Test Setup - August 2010 • Based (partly) on previous grinding of zeolite at SRS, in Tank 18/19 in 2008 • Batch processing tested with ...

347

Thermal Degradation and Immobilisation of Spent Ion Exchange ...  

Science Conference Proceedings (OSTI)

... of Fluidized Bed Steam Reforming (FBSR) with Hanford Low Activity Wastes ... Level Waste at the Defense Waste Processing Facility through Sludge Batch 7b.

348

Exchange of Cs Ion in Clay Minerals by Microwave Application  

Science Conference Proceedings (OSTI)

Difference between Life and Death of Bacterium against Microwave Power under ... Sintering and Plastic Deformation of Ceramics under Pulsed Electric Current.

349

The Separation of Tungsten and Molybdenum by Ion Exchange ...  

Science Conference Proceedings (OSTI)

... Effect of Process Variables on Current Efficiency, Energy Consumption, and Surface Morphology ... Recovery of Rare Earth Metals form Wasted Magnet.

350

Non-aqueous liquid compositions comprising ion exchange polymers  

DOE Patents (OSTI)

Compositions, and methods of making thereof, comprising from about 1% to about 5% of a perfluorinated sulfonic acid ionomer or a hydrocarbon-based ionomer; and from about 95% to about 99% of a solvent, said solvent consisting essentially of a polyol; wherein said composition is substantially free of water and wherein said ionomer is uniformly dispersed in said solvent.

Kim, Yu Seung; Lee, Kwan-Soo; Rockward, Tommy Q. T.

2013-03-12T23:59:59.000Z

351

SuperLig Ion Exchange Resin Swelling and Buoyancy Study  

Science Conference Proceedings (OSTI)

The objective of this study was to achieve a fundamental understanding of SuperLig resin swelling and shrinking characteristics, which lead to channeling and early breakthrough during loading cycles. The density of salt solution that causes resin floating was also determined to establish a limit for operation. Specific tests performed include (a) pH dependence, (b) ionic strength dependence and (c) buoyancy effect vs. simulant composition.

Hassan, N.M.

2000-07-27T23:59:59.000Z

352

Plasma ion sources and ion beam technology in microfabrications  

E-Print Network (OSTI)

conduction purposes. Copper tubes, with water passing through, are attached to the surface of the plasma

Ji, Lili

2007-01-01T23:59:59.000Z

353

Velocity shear-induced effects on electrostatic ion perturbations  

Science Conference Proceedings (OSTI)

Linear evolution of electrostatic perturbations in an unmagnetized electron{endash}ion plasma shear flow is studied. New physical effects, arising due to the non-normality of linear dynamics are disclosed. A new class of {ital nonperiodic collective mode} with vortical motion of ions, characterized by intense energy exchange with the mean flow, is found. It is also shown that the velocity shear induces extraction of the mean flow energy by ion-sound waves and that during the shear-induced evolution the ion-sound waves turn eventually into ion plasma oscillations. {copyright} {ital 1997 American Institute of Physics.}

Rogava, A.D. [Department of Physics, Tbilisi State University, and Department of Theoretical Astrophysics, Abastumani Astrophysical Observatory, Tbilisi, Republic of (Georgia)] [Department of Physics, Tbilisi State University, and Department of Theoretical Astrophysics, Abastumani Astrophysical Observatory, Tbilisi, Republic of (Georgia); Chagelishvili, G.D. [Department of Theoretical Astrophysics, Abastumani Astrophysical Observatory, Tbilisi, Republic of (Georgia)] [Department of Theoretical Astrophysics, Abastumani Astrophysical Observatory, Tbilisi, Republic of (Georgia); [Department of Cosmogeophysics, Space Research Institute, Moscow (Russia); Berezhiani, V.I. [Department of Plasma Physics, Institute of Physics, Tbilisi, Republic of (Georgia)] [Department of Plasma Physics, Institute of Physics, Tbilisi, Republic of (Georgia)

1997-12-01T23:59:59.000Z

354

Minimum Additive Waste Stabilization (MAWS). Technology summary  

Science Conference Proceedings (OSTI)

In the Minimum Additive Waste Stabilization(MAWS) concept, actual waste streams are utilized as additive resources for vitrification, which may contain the basic components (glass formers and fluxes) for making a suitable glass or glassy slag. If too much glass former is present, then the melt viscosity or temperature will be too high for processing; while if there is too much flux, then the durability may suffer. Therefore, there are optimum combinations of these two important classes of constituents depending on the criteria required. The challenge is to combine these resources in such a way that minimizes the use of non-waste additives yet yields a processable and durable final waste form for disposal. The benefit to this approach is that the volume of the final waste form is minimized (waste loading maximized) since little or no additives are used and vitrification itself results in volume reduction through evaporation of water, combustion of organics, and compaction of the solids into a non-porous glass. This implies a significant reduction in disposal costs due to volume reduction alone, and minimizes future risks/costs due to the long term durability and leach resistance of glass. This is accomplished by using integrated systems that are both cost-effective and produce an environmentally sound waste form for disposal. individual component technologies may include: vitrification; thermal destruction; soil washing; gas scrubbing/filtration; and, ion-exchange wastewater treatment. The particular combination of technologies will depend on the waste streams to be treated. At the heart of MAWS is vitrification technology, which incorporates all primary and secondary waste streams into a final, long-term, stabilized glass wasteform. The integrated technology approach, and view of waste streams as resources, is innovative yet practical to cost effectively treat a broad range of DOE mixed and low-level wastes.

Not Available

1994-02-01T23:59:59.000Z

355

Analysis of Heat Exchanger Network in Atmosphere-Vacuum Distillation of Crude Oil  

Science Conference Proceedings (OSTI)

Heat exchanger network (HEN) is constructed by hot streams which need cooling and some cold streams which need heating in the atmosphere-vacuum distillation process of crude oil. HEN synthesis technology of atmosphere-vacuum distillation of crude oil ... Keywords: energy saving, heat exchanger network, synthesis

Ge Yu-lin; Wang Ping; Shen Sheng-qiang

2011-02-01T23:59:59.000Z

356

Sodium-bearing Waste Treatment Technology Evaluation Report  

SciTech Connect

Sodium-bearing waste (SBW) disposition is one of the U.S. Department of Energy (DOE) Idaho Operation Office’s (NE-ID) and State of Idaho’s top priorities at the Idaho National Engineering and Environmental Laboratory (INEEL). The INEEL has been working over the past several years to identify a treatment technology that meets NE-ID and regulatory treatment requirements, including consideration of stakeholder input. Many studies, including the High-Level Waste and Facilities Disposition Environmental Impact Statement (EIS), have resulted in the identification of five treatment alternatives that form a short list of perhaps the most appropriate technologies for the DOE to select from. The alternatives are (a) calcination with maximum achievable control technology (MACT) upgrade, (b) steam reforming, (c) cesium ion exchange (CsIX) with immobilization, (d) direct evaporation, and (e) vitrification. Each alternative has undergone some degree of applied technical development and preliminary process design over the past four years. This report presents a summary of the applied technology and process design activities performed through February 2004. The SBW issue and the five alternatives are described in Sections 2 and 3, respectively. Details of preliminary process design activities for three of the alternatives (steam reforming, CsIX, and direct evaporation) are presented in three appendices. A recent feasibility study provides the details for calcination. There have been no recent activities performed with regard to vitrification; that section summarizes and references previous work.

Charles M. Barnes; Arlin L. Olson; Dean D. Taylor

2004-05-01T23:59:59.000Z

357

Exchange rate determination in Indonesia.  

E-Print Network (OSTI)

??This thesis examines the options for adopting normative and prescriptive models of exchange rate determination suitable for developed and developing countries. It also develops a… (more)

Rusydi, Mohammad

2006-01-01T23:59:59.000Z

358

Office of Waste Processing Technical Exchange  

NLE Websites -- All DOE Office Websites (Extended Search)

EM Waste Processing Technical Exchange 2010 Agenda EM Waste Processing Technical Exchange 2010 Agenda (Sponsored by EM Office of Waste Processing) November 16 - 18, 2010; Loews Hotel, Atlanta, GA 11/2/2010 Monday, November 15, 2010 5:00 - 7:00 pm Early Registration and Speaker Check-in *Light Refreshments Tuesday Morning, November 16, 2010 Session 1: Technical Exchange Opening (Chair: W. Wilmarth); Salon D Live Webcast Click the video icon to view Session 1 Live Webcast Submit Question Click the Question icon to submit a question. Time Topic Speaker 7:00 am Registration and Check-in 8:00 am S01-01 Welcome T. Michalske, SRNL 8:05 am S01-02 Opening Comments Y. Collazo, DOE-EM 8:15 am S01-03 Introductions G. Flowers, SRNS 8:20 am S01-04 Opening Remarks I. Triay, DOE-EM 8:45 am S01-05 Status of Waste Processing Technology Development

359

Flat plate heat exchangers  

SciTech Connect

A lightweight flat plate heat exchanger comprised of two or more essentially parallel flat plates which are formed and arranged to provide fluid flow passages between the plates. New combinations of plastic plates include the usage of transparent plastic foam and honeycomb structures. Improved shapes of flow passages include the usage of flow nozzles, flow diffusers, and jet pumps to increase fluid flow and heat transfer. The invention includes the usage of transparent plastic foam plates which are shaped to concentrate solar energy onto plastic tubes. Clear plastic tubes containing black heat transfer fluid are included. The invention includes the usage of spiral flow channels within plastic foam plates. Six different embodiments of the invention are included. Five of the embodiments could be used as efficient lightweight solar collectors.

Berringer, R.T.

1981-09-29T23:59:59.000Z

360

Nondestructive Evaluation: 11th EPRI Balance-of-Plant Heat Exchanger NDE Symposium Proceedings  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute's (EPRI's) 11th Balance-of-Plant Heat Exchanger Nondestructive Evaluation Symposiumheld in Stevenson, Washington, August 911, 2010 focused on nondestructive evaluation (NDE) technologies and lessons learned related to the inspection, condition assessment, and repair of balance-of-plant (BOP) heat exchanger components. As in the past, this year's symposium included pre-symposium tutorial courses followed by technology transfer through paper presentations and the vendo...

2010-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Vendor / Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Brake Assessment Tools Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor...

362

Vendor / Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Brake-Related Research Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor...

363

Faience Technology  

E-Print Network (OSTI)

by Joanne Hodges. Faience Technology, Nicholson, UEE 2009Egyptian materials and technology, ed. Paul T. Nicholson,Nicholson, 2009, Faience Technology. UEE. Full Citation:

Nicholson, Paul

2009-01-01T23:59:59.000Z

364

Office of Technology Transfer Composite Electrodes for Rechargeable Lithium-  

E-Print Network (OSTI)

of this technology. Page 6 Lithium-ion Batteries Could Hold the Key to 100-MPG Hybrids Lithium-ion batteries are a promising alternative to the nickel metal hydride batteries used in current-generation HEVs. Lithium-ion batteries pack more power and energy into a smaller battery package. But there's work to do before lithium-ion

Kemner, Ken

365

Partnership in key exchange protocols  

Science Conference Proceedings (OSTI)

In this paper, we investigate the notion of partnership as found in security models for key exchange protocols. Several different approaches have been pursued to define partnership, with varying degrees of success. We aim to provide an overview and criticism ... Keywords: key exchange, partnership, session identifier

Kazukuni Kobara; Seonghan Shin; Mario Strefler

2009-03-01T23:59:59.000Z

366

Technology Transfer: Site Map  

NLE Websites -- All DOE Office Websites (Extended Search)

Site Map Site Map About Us About Technology Transfer Contact Us Available Technologies Advanced Materials Biofuels Biotechnology and Medicine Developing World Energy Environmental Technologies Imaging and Lasers Ion Sources and Beam Technologies Nanotechnology and Microtechnology Software and Information Technology For Industry Licensing Overview Frequently Asked Questions Partnering with Berkeley Lab Licensing Interest Form Receive New Tech Alerts For Researchers What You Need to Know and Do The Tech Transfer Process Forms Record of Invention (Word doc -- please do not use earlier PDF version of the form) Software Disclosure and Abstract (PDF, use Adobe Acrobat or Adobe Reader 9 and up ONLY to complete the form) Policies Conflict of Interest Outside Empolyment Export Control FAQs for Researchers

367

Technological assessment and evaluation of high power batteries and their commercial values  

E-Print Network (OSTI)

Lithium Ion (Li-ion) battery technology has the potential to compete with the more matured Nickel Metal Hydride (NiMH) battery technology in the Hybrid Electric Vehicle (HEV) energy storage market as it has higher specific ...

Teo, Seh Kiat

2006-01-01T23:59:59.000Z

368

High Temperature Heat Exchanger Project  

Science Conference Proceedings (OSTI)

The UNLV Research Foundation assembled a research consortium for high temperature heat exchanger design and materials compatibility and performance comprised of university and private industry partners under the auspices of the US DOE-NE Nuclear Hydrogen Initiative in October 2003. The objectives of the consortium were to conduct investigations of candidate materials for high temperature heat exchanger componets in hydrogen production processes and design and perform prototypical testing of heat exchangers. The initial research of the consortium focused on the intermediate heat exchanger (located between the nuclear reactor and hydrogen production plan) and the components for the hydrogen iodine decomposition process and sulfuric acid decomposition process. These heat exchanger components were deemed the most challenging from a materials performance and compatibility perspective

Anthony E. Hechanova, Ph.D.

2008-09-30T23:59:59.000Z

369

Technology Search Results | Brookhaven Technology ...  

There are no technology records available that match the search query. Find a Technology. Search our technologies by categories or by keywords.

370

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

test test Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you're interested in, please contact us at TTD@lbl.gov. Energy ENERGY EFFICIENT TECHNOLOGIES Aerosol Sealing Aerosol Remote Sealing System Clog-free Atomizing and Spray Drying Nozzle Air-stable Nanomaterials for Efficient OLEDs Solvent Processed Nanotube Composites OLEDS with Air-stable Structured Electrodes APIs for Online Energy Saving Tools: Home Energy Saver and EnergyIQ Carbon Dioxide Capture at a Reduced Cost Dynamic Solar Glare Blocking System Electrochromic Device Controlled by Sunlight Electrochromic Windows with Multiple-Cavity Optical Bandpass Filter Electrochromic Window Technology Portfolio Universal Electrochromic Smart Window Coating

371

Ion Sources for High Energy Ion Implantation at BNL | U.S. DOE Office of  

Office of Science (SC) Website

Ion Sources for High Energy Ion Ion Sources for High Energy Ion Implantation at BNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Ion Sources for High Energy Ion Implantation at BNL Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Ion Sources for High Energy Ion Implantation Developed at: Brookhaven National Laboratory, New York; High Current Electronic

372

Ion Rings for Magnetic Fusion  

Science Conference Proceedings (OSTI)

This Final Technical Report presents the results of the program, Ion Rings for Magnetic Fusion, which was carried out under Department of Energy funding during the period August, 1993 to January, 2005. The central objective of the program was to study the properties of field-reversed configurations formed by ion rings. In order to reach this objective, our experimental program, called the Field-reversed Ion Ring Experiment, FIREX, undertook to develop an efficient, economical technology for the production of field-reversed ion rings. A field-reversed configuration (FRC) in which the azimuthal (field-reversing) current is carried by ions with gyro-radius comparable to the magnetic separatrix radius is called a field-reversed ion ring. A background plasma is required for charge neutralization of the ring, and this plasma will be confined within the ring's closed magnetic flux. Ion rings have long been of interest as the basis of compact magnetic fusion reactors, as the basis for a high-power accelerator for an inertial fusion driver, and for other applications of high power ion beams or plasmas of high energy density. Specifically, the FIREX program was intended to address the longstanding question of the contribution of large-orbit ions to the observed stability of experimental FRCs to the MHD tilt mode. Typical experimental FRCs with s {approx} 2-4, where s is the ratio of separatrix radius to ion gyro-radius, have been stable to tilting, but desired values for a fusion reactor, s > 20, should be unstable. The FIREX ring would consist of a plasma with large s for the background ions, but with s {approx} 1 for the ring ions. By varying the proportions of these two populations, the minimum proportion of large-orbit ions necessary for stability could be determined. The incorporation of large-orbit ions, perhaps by neutral-beam injection, into an FRC has been advanced for the purpose of stabilizing, heating, controlling angular momentum, and aiding the formation of a reactor-scale FRC, and the FIREX program was intended to test the ideas behind this approach. We will describe in this report the technological development path and advances in physics understanding that allowed FIREX to reach a regime in which ion rings were reproducibly created with up to about half the current necessary to produce field reversal. Unfortunately, the experiments were limited to this level by a fundamental, unanticipated aspect of the physics of strong ion rings in plasma. The FIREX ring is a strongly anisotropic, current-carrying population of ions moving faster than the Alfven speed in the background plasma. The rapidly changing ring current excites very large-amplitude Alfven waves in the plasma, and these waves strongly affect the ring, causing rapid energy loss in a way that is not compatible with the success of the ring trapping scenario around which FIREX was designed. The result was that FIREX rings were always very short-lived. We will discuss the implication of these results for possible future use of large-orbit ions in FRCs. In short, it appears that a certain range of the parameters characterizing the ring Alfven mach number and distribution function must be avoided to allow the existence of a long-lived energetic ion component in an FRC. This report will explain why FIREX experimental results cannot be directly scaled to quantitatively predict this range for a particular FRC configuration. This will require accurate, three-dimensional simulations. FIREX results do constitute a very good dataset for validating such a code, and simulations already carried out during this program provide a guide to the important physics involved.

Greenly, John, B.

2005-07-31T23:59:59.000Z

373

The character of resonant charge exchange involving highly excited atoms  

SciTech Connect

We study the process of resonant charge exchange involving excited helium atoms with the principal quantum number n = 5 colliding with the helium ion in the ground state in the collision energy range from thermal up to 10 eV. This information may be important for the analysis of planet atmospheres containing helium, in particular, for Jupiter's atmosphere, but our basic interest is the transition from the quantum to classical description of this process, where, due to large cross sections, evaluations of the cross sections are possible. For the chosen process, quantum theory allows determining the cross section as a result of a tunnel electron transition, while classical theory accounts for over-barrier electron transitions. The classical theory additionally requires effective transitions between states with close energies. The analysis of these transitions for helium with n = 5 shows that electron momenta and their projections are mixed for a part of the states, while for other states, the mixing is absent. A simple criterion to separate such states is given. In addition, the main contribution to the cross section of resonant charge exchange follows from tunnel electron transitions. As a result, the quantum theory is better for calculating the cross sections of resonant charge exchange than the classical one and also allows finding the partial cross sections of resonant charge exchange, while the classical approach gives the cross section of resonant charge exchange in a simple manner with the accuracy of 20%.

Kosarim, A. V.; Smirnov, B. M., E-mail: bmsmirnov@gmail.com [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation); Capitelli, M. [University of Bari, Department of Chemistry (Italy); Laricchiuta, A. [IMIP CNR, Sezione Territoriale di Bari (Italy)

2012-12-15T23:59:59.000Z

374

Modular heat exchanger  

DOE Patents (OSTI)

A shell and tube heat exchanger having a plurality of individually removable tube bundle modules. A lattice of structural steel forming rectangular openings therein is placed at each end of a cylindrical shell. Longitudinal structural members are placed in the shell between corners of the rectangular openings situated on opposite ends of the shell. Intermediate support members interconnect the longitudinal supports so as to increase the longitudinal supports rigidity. Rectangular parallelpiped tube bundle moldules occupy the space defined by the longitudinal supports and end supports and each include a rectangular tube sheet situated on each end of a plurality of tubes extending therethrough, a plurality of rectangular tube supports located between the tube sheets, and a tube bundle module stiffening structure disposed about the bundle's periphery and being attached to the tube sheets and tube supports. The corners of each tube bundle module have longitudinal framework members which are mateable with and supported by the longitudinal support members. Intermediate support members constitute several lattice, each of which is situate d in a plane between the end support members. The intermediate support members constituting the several lattice extend horizontally and vertically between longitudinal supports of adjacent tube module voids. An alternative embodiment for intermediate support members constitute a series of structural plates situated at the corners of the module voids and having recesses therein for receiving the respective longitudinal support members adjacent thereto, protrusions separating the recesses, and a plurality of struts situated between protrusions of adjacent structural plates.

Giardina, Angelo R. (Marple Township, Delaware County, PA)

1981-01-01T23:59:59.000Z

375

Modular heat exchanger  

DOE Patents (OSTI)

A shell and tube heat exchanger is described having a plurality of individually removable tube bundle modules. A lattice of structural steel forming rectangular openings therein is placed at each end of a cylindrical shell. Longitudinal structural members are placed in the shell between corners of the rectangular openings situated on opposite ends of the shell. Intermediate support members interconnect the longitudinal supports so as to increase the longitudinal supports rigidity. Rectangular parallelepiped tube bundle modules occupy the space defined by the longitudinal supports and end supports and each include a rectangular tube sheet situated on each end of a plurality of tubes extending there through, a plurality of rectangular tube supports located between the tube sheets, and a tube bundle module stiffening structure disposed about the bundle's periphery and being attached to the tube sheets and tube supports. The corners of each tube bundle module have longitudinal framework members which are mateable with and supported by the longitudinal support members. Intermediate support members constitute several lattices, each of which is situated in a plane between the end support members. The intermediate support members constituting the several lattices extend horizontally and vertically between longitudinal supports of adjacent tube module voids. An alternative embodiment for intermediate support members constitute a series of structural plates situated at the corners of the module voids and having recesses therein for receiving the respective longitudinal support members adjacent thereto, protrusions separating the recesses, and a plurality of struts situated between protrusions of adjacent structural plates. 12 figs.

Giardina, A.R.

1981-03-03T23:59:59.000Z

376

CATALYTIC PROMOTION OF THE ADSORPTION OF VANADIUM ON AN ANIONIC EXCHANGE RESIN  

DOE Patents (OSTI)

An improvement in the process for the recovery of vanadium from acidic phosphatic solutions is presented. In this process the vanadium is first oxidized to the pentavaleat state, and is then separated by contacting such solutions with an anion exchange resin whereby adsorption of the complexed pentavalent vanadium is effected. The improvement lies in the fact that adsorp tion of the vanadium complex by the anion exchange resin is promoted and improved by providing fiuoride ions in solution to be contacted.

Bailes, R.H.; Ellis, D.A.

1958-08-26T23:59:59.000Z

377

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Materials Advanced Materials Adjustably Inducing Biaxial Strain in Thin Films Bone Replacement and Dental Materials Flexibone: Osteo-mimetic Composites Graded Bioactive Glass and Glass/Ceramic Coatings for Metal Bone Implants Injectable Hydrogel-Based Biodegradable Bone Replacement Materials Mineralization of Biocompatible Scaffolds Peptides for the Controllable Promotion or Inhibition of Bone Growth Remineralization and Repair of Calcified Tissues Using Biomimetic Polymer Boron Nitride Converted Carbon Fibers Catalysts for Reduction of SO2 to Elemental Sulfur Catalyst Exchanges Deuterium or Tritium into Organic and Organometallic Compounds Direct Thin Film Path to Low Cost, Large Area III-V Photovoltaics Easily Assembled Porous Thin Films Full Spectrum Semiconducting Material for Affordable, Highly

378

Plasma and ion beam processing at Los Alamos  

SciTech Connect

Efforts are underway at Los Alamos National Laboratory to utilize plasma and intense ion beam science and technology of the processing of advanced materials. A major theme involves surface modification of materials, e.g., etching, deposition, alloying, and implantation. In this paper, we concentrate on two programs, plasma source ion implantation and high-intensity pulsed ion beam deposition.

Rej, D.J.; Davis, H.A.; Henins, I. [and others

1994-07-01T23:59:59.000Z

379

Modeling particle deposition on HVAC heat exchangers  

E-Print Network (OSTI)

DEPOSITION ON HVAC HEAT EXCHANGERS JA Siegel 1,3 * and WWof fin-and-tube heat exchangers by particle deposition leadsparticle deposition on heat exchanger surfaces. We present a

Siegel, J.A.; Nazaroff, W.W.

2002-01-01T23:59:59.000Z

380

Technology Search Results | Brookhaven Technology ...  

Staff Directory; BNL People Technology Commercialization & Partnerships. Home; For BNL Inventors; ... a nonprofit applied science and technology organization. ...

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Technology Search Results | Brookhaven Technology ...  

Non-Noble Metal Water Electrolysis Catalysts; Find a Technology. Search our technologies by categories or by keywords. Search ...

382

Technology Search Results | Brookhaven Technology ...  

BSA 08-04: High Temperature Interfacial Superconductivity; Find a Technology. Search our technologies by categories or by keywords. Search ...

383

Technology Search Results | Brookhaven Technology ...  

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384

Entanglement Exchange and Bohmian Mechanics  

E-Print Network (OSTI)

This paper analyses the phenomenon of entanglement exchange in Bohm's pilot wave interpretation of quantum mechanics. The interesting feature of the phenomenon is that systems become entangled without causal interaction; hence it is a useful situation for investigating the unique nature of interaction in Bohmian mechanics. The first two sections introduce, respectively, entanglement exchange in the standard interpretation of quantum mechanics, and the basic principles of Bohmian mechanics. The next section shows that the Bohmian interpretation makes the same experimental predictions about entanglement exchange as the standard one. The final section draws some conclusions about interactions and entanglement in Bohmian mechanics.

Nick Huggett; Tiziana Vistarini

2009-05-25T23:59:59.000Z

385

Heat exchanger using graphite foam  

DOE Patents (OSTI)

A heat exchanger is disclosed. The heat exchanger may have an inlet configured to receive a first fluid and an outlet configured to discharge the first fluid. The heat exchanger may further have at least one passageway configured to conduct the first fluid from the inlet to the outlet. The at least one passageway may be composed of a graphite foam and a layer of graphite material on the exterior of the graphite foam. The layer of graphite material may form at least a partial barrier between the first fluid and a second fluid external to the at least one passageway.

Campagna, Michael Joseph; Callas, James John

2012-09-25T23:59:59.000Z

386

Optimization of Heat Exchanger Cleaning  

E-Print Network (OSTI)

The performance of heat integration systems is quantified in terms of the amount of heat that is recovered. This decreases with time due to increased fouling of the heat exchange surface. Using the "Total Fouling Related Expenses (TFRE)" approach, economic incentives for heat exchanger cleaning are evaluated using linear, exponential, and exponential finite decrease models of the heat recovery decay. A mathematical comparison of mechanical and chemical cleaning of heat exchangers has identified the most significant parameters which affect the choice between the two methods.

Siegell, J. H.

1986-06-01T23:59:59.000Z

387

Heat exchanger with ceramic elements  

DOE Patents (OSTI)

An annular heat exchanger assembly includes a plurality of low thermal growth ceramic heat exchange members with inlet and exit flow ports on distinct faces. A mounting member locates each ceramic member in a near-annular array and seals the flow ports on the distinct faces into the separate flow paths of the heat exchanger. The mounting member adjusts for the temperature gradient in the assembly and the different coefficients of thermal expansion of the members of the assembly during all operating temperatures.

Corey, John A. (North Troy, NY)

1986-01-01T23:59:59.000Z

388

Building Technologies Office: Performance Metrics Tiers  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Metrics Performance Metrics Tiers to someone by E-mail Share Building Technologies Office: Performance Metrics Tiers on Facebook Tweet about Building Technologies Office: Performance Metrics Tiers on Twitter Bookmark Building Technologies Office: Performance Metrics Tiers on Google Bookmark Building Technologies Office: Performance Metrics Tiers on Delicious Rank Building Technologies Office: Performance Metrics Tiers on Digg Find More places to share Building Technologies Office: Performance Metrics Tiers on AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides Building Energy Data Exchange Specification Buildings Performance Database Data Centers Energy Asset Score Energy Modeling Software

389

Building Technologies Office: Commercial Reference Buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

Commercial Reference Commercial Reference Buildings to someone by E-mail Share Building Technologies Office: Commercial Reference Buildings on Facebook Tweet about Building Technologies Office: Commercial Reference Buildings on Twitter Bookmark Building Technologies Office: Commercial Reference Buildings on Google Bookmark Building Technologies Office: Commercial Reference Buildings on Delicious Rank Building Technologies Office: Commercial Reference Buildings on Digg Find More places to share Building Technologies Office: Commercial Reference Buildings on AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides Building Energy Data Exchange Specification Buildings Performance Database Data Centers Energy Asset Score

390

Building Technologies Office: Advanced Energy Retrofit Guides  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Energy Retrofit Guides to someone by E-mail Share Building Technologies Office: Advanced Energy Retrofit Guides on Facebook Tweet about Building Technologies Office: Advanced Energy Retrofit Guides on Twitter Bookmark Building Technologies Office: Advanced Energy Retrofit Guides on Google Bookmark Building Technologies Office: Advanced Energy Retrofit Guides on Delicious Rank Building Technologies Office: Advanced Energy Retrofit Guides on Digg Find More places to share Building Technologies Office: Advanced Energy Retrofit Guides on AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides Building Energy Data Exchange Specification Buildings Performance Database Data Centers Energy Asset Score

391

Anion Exchange Membranes for Fuel Cells  

NLE Websites -- All DOE Office Websites (Extended Search)

Anion Exchange Membranes for Fuel Cells Andrew M. Herring CSM Bryan Pivovar NREL 1 Anion Exchange Membranes (Presented to Parallel Breakout Sessions) * Stability Challenges -...

392

Providing Access to High Performance Computing Technologies  

E-Print Network (OSTI)

Providing Access to High Performance Computing Technologies Jack Dongarra 1 , Shirley Browne 2 to high performance computing technologies. One effort, the National HPCC Software Exchange, is providing scientists involved with High Performance Computing and Communications (HPCC) [1] 3 . The NHSE facilitates

Dongarra, Jack

393

Role of Cation-Water Disorder during Cation Exchange in Small-Pore Zeolite  

NLE Websites -- All DOE Office Websites (Extended Search)

Role of Cation-Water Disorder during Cation Exchange in Small-Pore Zeolite Role of Cation-Water Disorder during Cation Exchange in Small-Pore Zeolite Sodium Natrolite Thursday, October 31, 2013 Structural changes leading to disordering of the cation-water arrangement within the pores of zeolite natrolite while exchanging sodium (Na+) with potassium (K+) have been investigated using x-ray diffraction (XRD) and oxygen K-edge x-ray absorption spectroscopy (XAS). cation in zeolite sodium natrolite fig1 Figure 1) Artistic representation of the natrolite channel, which opens progressively as a function of the exchanging cation's size. The small golf ball represents ordered sodium cations in a closed elliptical channel, whereas the large baseball represents a disordered cesium cation in an open circular channel. The most fundamental chemical property of zeolites is ion exchange. A

394

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Please refer to the list of technologies below for licensing and research Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you're interested in, please contact us at TTD@lbl.gov. Biotechnology and Medicine DIAGNOSTICS AND THERAPEUTICS CANCER CANCER PROGNOSTICS 14-3-3 Sigma as a Biomarker of Basal Breast Cancer ANXA9: A Therapeutic Target and Predictive Marker for Early Detection of Aggressive Breast Cancer Biomarkers for Predicting Breast Cancer Patient Response to PARP Inhibitors Breast Cancer Recurrence Risk Analysis Using Selected Gene Expression Comprehensive Prognostic Markers and Therapeutic Targets for Drug-Resistant Breast Cancers Diagnostic Test to Personalize Therapy Using Platinum-based Anticancer Drugs Early Detection of Metastatic Cancer Progenitor Cells

395

XML for CIM Model Exchange  

E-Print Network (OSTI)

Abstract: Organizations responsible for secure power system operations need to model their systems and portions of neighboring systems in support of control and security functions. In the USA, the restructuring of the electric utility industry emphasizes the need to exchange operational system models for Independent System Operators (ISO) and Regional Transmission Organizations (RTO). These models need to be node/breaker oriented in order to meet the needs of control center applications. Unfortunately, the existing model exchange formats derive from planning models that are bus/branch oriented and lack detail required for control center operations. To support these data modeling exchange needs, NERC has adopted an approach that uses the semantic data definitions from the EPRI CIM with the syntax of XML to create XML files containing operational power system models. This paper presents the key aspects of XML and the CIM that make them excellent choices for addressing the operational model exchange needs of our industry.

A. Devos; Member Ieee; S. E. Widergren; Sr. Member; Ieee J. Zhu; Member Ieee

2001-01-01T23:59:59.000Z

396

Heat pipe array heat exchanger  

DOE Patents (OSTI)

A heat pipe arrangement for exchanging heat between two different temperature fluids. The heat pipe arrangement is in a ounterflow relationship to increase the efficiency of the coupling of the heat from a heat source to a heat sink.

Reimann, Robert C. (Lafayette, NY)

1987-08-25T23:59:59.000Z

397

Exchange Rates, Information, and Crises  

E-Print Network (OSTI)

equation (5.4). Standard Bayesian inference implies that theAs before, standard Bayesian inference implies that Var 1 [f˜ so that standard Bayesian inference both exchange rate is

Fernholz, Ricardo Turrin

2011-01-01T23:59:59.000Z

398

Technology Transfer: Available Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Software and Information Technologies Software and Information Technologies Algorithm for Correcting Detector Nonlinearites Chatelet: More Accurate Modeling for Oil, Gas or Geothermal Well Production Collective Memory Transfers for Multi-Core Processors Energy Efficiency Software EnergyPlus:Energy Simulation Software for Buildings Tools, Guides and Software to Support the Design and Operation of Energy Efficient Buildings Flexible Bandwidth Reservations for Data Transfer Genomic and Proteomic Software LABELIT - Software for Macromolecular Diffraction Data Processing PHENIX - Software for Computational Crystallography Vista/AVID: Visualization and Allignment Software for Comparative Genomics Geophysical Software Accurate Identification, Imaging, and Monitoring of Fluid Saturated Underground Reservoirs

399

Technical Exchange and Cooperation Agreement between the Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technical Exchange and Cooperation Agreement between the Department Technical Exchange and Cooperation Agreement between the Department of Energy and the European Atomic Energy Community Technical Exchange and Cooperation Agreement between the Department of Energy and the European Atomic Energy Community The objective of this technical arrangement is to establish a framework for co-operation between the Parties in the field of nuclear-related technology research and development based upon mutual benefit. The co-operation is intended to occur in specific areas where the programs of the Parties complement one another as well as those in which comparability exists. 4.5.1.1.3.3_eu_agreement.pdf More Documents & Publications International_Agreements_January_2001_December_2004.pdf International Agreements Comments EM International Strategic Plan 2010-2015

400

Technical Exchange and Cooperation Agreement between the Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technical Exchange and Cooperation Agreement between the Department Technical Exchange and Cooperation Agreement between the Department of Energy and the European Atomic Energy Community Technical Exchange and Cooperation Agreement between the Department of Energy and the European Atomic Energy Community The objective of this technical arrangement is to establish a framework for co-operation between the Parties in the field of nuclear-related technology research and development based upon mutual benefit. The co-operation is intended to occur in specific areas where the programs of the Parties complement one another as well as those in which comparability exists. 4.5.1.1.3.3_eu_agreement.pdf More Documents & Publications International_Agreements_January_2001_December_2004.pdf International Agreements Comments Scanned_Agreement.pdf

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange  

Open Energy Info (EERE)

Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange on Openei Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange on Openei Abstract Though exploring for hydrothermal resources is not new, advances in exploration technologies and the pursuit of less visible resources have created a need to outline exploration best practices. This multi-year study outlines 21 geothermal exploration regions in the Western United States. These regions were developed based on the U.S. Geological Survey (USGS) physiographic regions, then adjusted to fit geothermal parameters such as differences in geologic regime, structure, heat source, surface effects

402

Shell and Tube Heat Exchangers  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Unconventional Resources Technology Unconventional Resources Technology Advisory Committee Comments and Recommendations 2007 Unconventional Gas Research and Development Annual Plan July, 2007 Unconventional Resources Technology Advisory Committee Report TABLE OF CONTENTS 1.0 INTRODUCTION............................................................................................................... 3 2.0 EXECUTIVE SUMMARY AND RECOMMENDATIONS ................................................... 4 3.0 SUB GROUP REPORTS .................................................................................................. 6 3.1 TECHNOLOGY TRANSFER ................................................................................. 7 3.2 REGULATION .......................................................................................................

403

Anion exchange polymer electrolytes  

DOE Patents (OSTI)

Solid anion exchange polymer electrolytes and compositions comprising chemical compounds comprising a polymeric core, a spacer A, and a guanidine base, wherein said chemical compound is uniformly dispersed in a suitable solvent and has the structure: ##STR00001## wherein: i) A is a spacer having the structure O, S, SO.sub.2, --NH--, --N(CH.sub.2).sub.n, wherein n=1-10, --(CH.sub.2).sub.n--CH.sub.3--, wherein n=1-10, SO.sub.2-Ph, CO-Ph, ##STR00002## wherein R.sub.5, R.sub.6, R.sub.7 and R.sub.8 each are independently --H, --NH.sub.2, F, Cl, Br, CN, or a C.sub.1-C.sub.6 alkyl group, or any combination of thereof; ii) R.sub.9, R.sub.10, R.sub.11, R.sub.12, or R.sub.13 each independently are --H, --CH.sub.3, --NH.sub.2, --NO, --CH.sub.nCH.sub.3 where n=1-6, HC.dbd.O--, NH.sub.2C.dbd.O--, --CH.sub.nCOOH where n=1-6, --(CH.sub.2).sub.n--C(NH.sub.2)--COOH where n=1-6, --CH--(COOH)--CH.sub.2--COOH, --CH.sub.2--CH(O--CH.sub.2CH.sub.3).sub.2, --(C.dbd.S)--NH.sub.2, --(C.dbd.NH)--N--(CH.sub.2).sub.nCH.sub.3, where n=0-6, --NH--(C.dbd.S)--SH, --CH.sub.2--(C.dbd.O)--O--C(CH.sub.3).sub.3, --O--(CH.sub.2).sub.n--CH--(NH.sub.2)--COOH, where n=1-6, --(CH.sub.2).sub.n--CH.dbd.CH wherein n=1-6, --(CH.sub.2).sub.n--CH--CN wherein n=1-6, an aromatic group such as a phenyl, benzyl, phenoxy, methylbenzyl, nitrogen-substituted benzyl or phenyl groups, a halide, or halide-substituted methyl groups; and iii) wherein the composition is suitable for use in a membrane electrode assembly.

Kim, Yu Seung; Kim, Dae Sik; Lee, Kwan-Soo

2013-07-23T23:59:59.000Z

404

Clean Energy Technologies: A Preliminary Inventory of the Potential for Electricity Generation  

E-Print Network (OSTI)

MCFC) and solid oxide (SOFC). Proton exchange membrane (PEM)technology. Hence, MCFC and SOFC offer the most potentialfuel cell system, MCFC and SOFC offer the most potential.

Bailey, Owen; Worrell, Ernst

2005-01-01T23:59:59.000Z

405

Nuclear Reactors and Technology  

SciTech Connect

This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

Cason, D.L.; Hicks, S.C. [eds.

1992-01-01T23:59:59.000Z

406

NEI Corporation Technology Promotes Efficiency in Heat Exchangers...  

Office of Science (SC) Website

Top image: Filmwise condensation (FWC), Bottom image: Dropwise condensation (DWC) R&D Opportunity In electrical utilities and in many process industries, improved heat...

407

Chicago Climate Exchange, Inc. 2010 Chicago Climate Exchange 1 The Role of Exchanges and Standardization  

E-Print Network (OSTI)

Premium Standard Farms Smithfield Foods, Inc. Forest Products Abitibi-Consolidated Aracruz Celulose S Incorporated NewPage Plum Creek Suzano Papel E Celulose SA Tembec Industries Inc. #12;Chicago Climate Exchange

408

Energy and technology review  

DOE Green Energy (OSTI)

Research activities at Lawrence Livermore National Laboratory are described in the Energy and Technology Review. This issue includes articles on measuring chromosome changes in people exposed to cigarette smoke, sloshing-ion experiments in the tandem mirror experiment, aluminum-air battery development, and a speech by Edward Teller on national defense. Abstracts of the first three have been prepared separately for the data base. (GHT)

Brown, P.S. (ed.)

1983-06-01T23:59:59.000Z

409

Improved ion source  

DOE Patents (OSTI)

A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species,

Leung, K.N.; Ehlers, K.W.

1982-05-04T23:59:59.000Z

410

ANSI Summary of US-China Exchange on EV Standardization  

NLE Websites -- All DOE Office Websites (Extended Search)

ANSI Summary of US-China Exchange on EV ANSI Summary of US-China Exchange on EV Standardization Presented by: Jim McCabe Senior Director, Standards Facilitation American National Standards Institute US.-China Electric Vehicles and Battery Technology Workshop August 23, 2012 ANSI EVSP Roadmap | US-China EV and Battery Technology Workshop Background - Why the Need for a U.S. Standardization Roadmap for EVs?  Many U.S. based standards developing organizations (SDOs) produce globally relevant standards following an open, consensus-based process (SAE, UL, NFPA, IEEE, and others)  A standardization roadmap would . . . Maximize coordination among SDOs and provide guidance on standards participation and progress  Enable the U.S. to speak more coherently with international partners

411

Secondary Heat Exchanger Design and Comparison for Advanced High Temperature Reactor  

Science Conference Proceedings (OSTI)

The goals of next generation nuclear reactors, such as the high temperature gas-cooled reactor and advance high temperature reactor (AHTR), are to increase energy efficiency in the production of electricity and provide high temperature heat for industrial processes. The efficient transfer of energy for industrial applications depends on the ability to incorporate effective heat exchangers between the nuclear heat transport system and the industrial process heat transport system. The need for efficiency, compactness, and safety challenge the boundaries of existing heat exchanger technology, giving rise to the following study. Various studies have been performed in attempts to update the secondary heat exchanger that is downstream of the primary heat exchanger, mostly because its performance is strongly tied to the ability to employ more efficient conversion cycles, such as the Rankine super critical and subcritical cycles. This study considers two different types of heat exchangers—helical coiled heat exchanger and printed circuit heat exchanger—as possible options for the AHTR secondary heat exchangers with the following three different options: (1) A single heat exchanger transfers all the heat (3,400 MW(t)) from the intermediate heat transfer loop to the power conversion system or process plants; (2) Two heat exchangers share heat to transfer total heat of 3,400 MW(t) from the intermediate heat transfer loop to the power conversion system or process plants, each exchanger transfers 1,700 MW(t) with a parallel configuration; and (3) Three heat exchangers share heat to transfer total heat of 3,400 MW(t) from the intermediate heat transfer loop to the power conversion system or process plants. Each heat exchanger transfers 1,130 MW(t) with a parallel configuration. A preliminary cost comparison will be provided for all different cases along with challenges and recommendations.

Piyush Sabharwall; Ali Siahpush; Michael McKellar; Michael Patterson; Eung Soo Kim

2012-06-01T23:59:59.000Z

412

Tools & Technologies  

Energy.gov (U.S. Department of Energy (DOE))

We provide leadership for transforming workforce development through the power of technology. It develops corporate educational technology policy and enables the use of learning tools and...

413

Available Technologies  

The technology’s subnanometer resolution is a result of superior ... Additional R&D will be required ... U.S. DEPARTMENT OF ENERGY • OFFICE OF SCIENCE ...

414

United States: Ukraine Technical Exchange II trip report  

Science Conference Proceedings (OSTI)

May 15--21, 1994, the first technical conference was held at Hanford between Ukraine-Chornobyl, Westinghouse Hanford, and SAIC, to exchange technical information and experience gained in cleanup and stabilization of radioactive contamination at Hanford and Chornobyl. Protocol was signed for a second exchange and technology demonstration program in Kiev and near Chornobyl power plants. Technical Exchange No. 2 was held from August 28--September 9, 1994, with 3 focus areas: field demonstration of DOE-Hanford technologies and application to cleanup of contaminated lands resulting from 1986 Chornobyl accident; application of other US DOE-technologies; and observation/evaluation of Ukraine-developed technologies for potential application in USA. Three radiological mapping systems were demonstrated near Chornobyl: man-carried Ultrasonic Ranging and Data System, a mobile radiological data system, and NOMAD field gamma spectroscopy system. The Ukraine-Chornobyl team hosted technical presentations, discussions and field trips for 4.5 days, providing insight on the Chornobyl problem and allowing the US team to present overviews on DOE technologies that may be applicable to the Chornobyl situation. It is concluded that Ukrainian scientists have tremendous talent and expended considerable energy in attempting to tackle such a problem, but economic and cultural conditions with Ukraine have prevented them from acquiring the resources to implement basic aspects of characterization and remediation activities. Most of their publications are in Russian only. Their translation, plus resources to carry out proposals for bench scale and field demonstration projects, could benefit the DOE complex and other nuclear programs. The considerable cultural and economic change occurring in Ukraine, is providing opportunities for private industries to assist in the changes and for DOE, others to apply cleanup technologies, and it is essential that close institutional relations be established.

Moak, D.J.; Wendling, M.A.

1995-02-01T23:59:59.000Z

415

Vehicle Technologies Office: Vehicle Technologies Office Organization...  

NLE Websites -- All DOE Office Websites (Extended Search)

Organization and Contacts Organization Chart for the Vehicle Technologies Program Fuel Technologies and Deployment, Technology Managers Advanced Combustion Engines, Technology...

416

Fuel Cell Technologies Office: Technology Validation  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Information Technology Validation Search Search Help Technology Validation EERE Fuel Cell Technologies Office Technology Validation Printable Version Share this resource...

417

Experimental evaluation of a negative ion source for a heavy ionfusion negative ion driver  

DOE Green Energy (OSTI)

Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photodetached to neutrals [1,2,3]. To test the ability to make suitable quality beams, an experiment was conducted at Lawrence Berkeley National Laboratory using chlorine in an RF-driven ion source. Without introducing any cesium (which is required to enhance negative ion production in hydrogen ion sources) a negative chlorine current density of 45 mA/cm{sup 2} was obtained under the same conditions that gave 57 mA/cm{sup 2} of positive chlorine, suggesting the presence of nearly as many negative ions as positive ions in the plasma near the extraction plane. The negative ion spectrum was 99.5% atomic chlorine ions, with only 0.5% molecular chlorine, and essentially no impurities. Although this experiment did not incorporate the type of electron suppression technology that is used in negative hydrogen beam extraction, the ratio of co-extracted electrons to Cl{sup -} was as low as 7 to 1, many times lower than the ratio of their mobilities, suggesting that few electrons are present in the near-extractor plasma. This, along with the near-equivalence of the positive and negative ion currents, suggests that the plasma in this region was mostly an ion-ion plasma. The negative chlorine current density was relatively insensitive to pressure, and scaled linearly with RF power. If this linear scaling continues to hold at higher RF powers, it should permit current densities of 100 mA/cm{sup 2}, sufficient for present heavy ion fusion injector concepts. The effective ion temperatures of the positive and negative ions appeared to be similar and relatively low for a plasma source.

Grisham, L.R.; Hahto, S.K.; Hahto, S.T.; Kwan, J.W.; Leung, K.N.

2005-01-18T23:59:59.000Z

418

Inexpensive, Environmentally Friendly and High Permeable Lignin ...  

home \\ technologies \\ lignin based ion exchangers. Technologies: Ready-to-Sign Licenses: Software: Patents: Inexpensive, Environmentally Friendly and High Permeable ...

419

Available Technologies: Curved Mandrel Design Enabling ...  

A Berkeley Lab team of engineers led by Shlomo Caspi has invented a technology to construct a curved superconducting magnet capable of bending an ion beam 90° in a ...

420

Chemistry - Technology Transfer: Available Technologies  

Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you ...

Note: This page contains sample records for the topic "ion exchange technology" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Technology Analysis - Heavy Vehicle Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

the GPRA benefits estimates for EERE's Vehicle Technologies Program's heavy vehicle technology research activities. Argonne researchers develop the benefits analysis using four...

422

Available Technologies  

APPLICATIONS OF TECHNOLOGY: Thermal management for: microelectronic devices; solar cells and solar energy management systems ; refrigerators

423

Available Technologies  

Energy Storage and Recovery; Renewable Energy; Environmental Technologies. Monitoring and Imaging; Remediation; Modeling; Imaging & Lasers.

424

High brilliance negative ion and neutral beam source  

DOE Patents (OSTI)

A high brilliance mass selected (Z-selected) negative ion and neutral beam source having good energy resolution. The source is based upon laser resonance ionization of atoms or molecules in a small gaseous medium followed by charge exchange through an alkali oven. The source is capable of producing microampere beams of an extremely wide variety of negative ions, and milliampere beams when operated in the pulsed mode.

Compton, R.N.

1990-01-03T23:59:59.000Z

425

Modeling temperature distribution in cylindrical lithium ion batteries for use in electric vehicle cooling system design  

E-Print Network (OSTI)

Recent advancements in lithium ion battery technology have made BEV's a more feasible alternative. However, some safety concerns still exist. While the energy density of lithium ion batteries has all but made them the ...

Jasinski, Samuel Anthony

2008-01-01T23:59:59.000Z

426

Modeling and Simulation of Lithium-Ion Batteries from a Systems Engineering Perspective  

E-Print Network (OSTI)

The lithium-ion battery is an ideal candidate for a wide variety of applications due to its high energy/power density and operating voltage. Some limitations of existing lithium-ion battery technology include underutilization, ...

Braatz, Richard D.

427

Anion-exchange resin-based desulfurization process. Final report  

DOE Green Energy (OSTI)

The following investigations were performed: (1) batch mode screening of eleven(11) commercially available resins and selection of three candidate resins for further evaluation in a fixed-bed setup. (2) Process variables study using three candidate resins in the fixed-bed setup and selection of the ``best`` resin for process economics development. (3) Exhaustion efficiency and solution concentration were found to be inversely related necessitating a trade-off between the resin cost versus the cost of evaporation/concentration of ensuing effluents. (4) Higher concentration of the HCO{sub 3}{sup {minus}} form of active sites over less active CO{sub 3}{sup 2{minus}} form of sites in the resin was believed to be the main reason for the observed increase in the equilibrium capacity of the resin at an elevated static CO{sub 2}-pressure. This Increase in capacity was found to level off around 80--120 psig range. The increase in CO{sub 2}-pressure, however, did not appear to affect the overall ion-exchange kinetics. (5) In the fixed-bed mode, the solution concentration was found to affect the equilibrium capacity of candidate resins. Their relationship was well satisfied by the Langmuir type non-linear equilibrium isotherm. Alternatively, the effect of solution concentration on overall ion-exchange kinetics varied from resin to resin. (6) Product inhibition effect on the resin was observed as an initial increase followed by a significant decrease in the resin`s equilibrium capacity for SO{sub 4}{sup 2{minus}} as the HCO{sub 3}{sup {minus}}/SO{sub 4}{sup 2{minus}} molar ratio in the solution was increased from 0 to 1.0. This ratio, however, did not affect the overall ion-exchange kinetics.

Sheth, A C; Dharmapurikar, R; Strevel, S D

1994-01-01T23:59:59.000Z

428

Fuel Cell Technologies Office: Technology Validation  

NLE Websites -- All DOE Office Websites (Extended Search)

Fuel Cell Technologies Office: Technology Validation to someone by E-mail Share Fuel Cell Technologies Office: Technology Validation on Facebook Tweet about Fuel Cell Technologies...

429

Test results of a Stirling engine utilizing heat exchanger modules with an integral heat pipe  

SciTech Connect

The Heat Pipe Stirling Engine (HP-1000), a free-piston Stirling engine incorporating three heat exchanger modules, each having a sodium filled heat pipe, has been tested at the NASA-Lewis Research Center as part of the Civil Space Technology Initiative (CSTI). The heat exchanger modules were designed to reduce the number of potential flow leak paths in the heat exchanger assembly and incorporate a heat pipe as the link between the heat source and the engine. An existing RE-1000 free-piston Stirling engine was modified to operate using the heat exchanger modules. This paper describes heat exchanger module and engine performance during baseline testing. Condenser temperature profiles, brake power, and efficiency are presented and discussed.

Skupinski, R.C.; Tower, L.K.; Madi, F.J.; Brusk, K.D.

1993-04-01T23:59:59.000Z

430

Method and apparatus for removing ions from soil  

DOE Green Energy (OSTI)

A method and apparatus for selectively removing species of ions from an area of soil. Permeable membranes 14 and 18 impregnated with an ion exchange resin that is specific to one or more species of chemical ions are inserted into ground 12 in close proximity to, and on opposing sides of, a soil area of interest 22. An electric potential is applied across electrodes 26 and 28 to cause the migration of ions out of soil area 22 toward the membranes 14 and 18. Preferably, the resin exchanges ions of sodium or hydrogen for ions of mercury that it captures from soil area 22. Once membranes 14 and 18 become substantially saturated with mercury ions, the potential applied across electrodes 26 and 28 is discontinued and membranes 14 and 18 are preferably removed from soil 12 for storage or recovery of the ions. The membranes are also preferably impregnated with a buffer to inhibit the effect of the hydrolysis of water by current from the electrodes.

Bibler, Jane P. (813 E. Rollingwood Rd., Aiken, SC 29801)

1993-01-01T23:59:59.000Z

431

Method and apparatus for removing ions from soil  

DOE Patents (OSTI)

A method and apparatus are presented for selectively removing species of ions from an area of soil. Permeable membranes 14 and 18 impregnated with an ion exchange resin that is specific to one or more species of chemical ions are inserted into ground 12 in close proximity to, and on opposing sides of, a soil area of interest 22. An electric potential is applied across electrodes 26 and 28 to cause the migration of ions out of soil area 22 toward the membranes 14 and 18. Preferably, the resin exchanges ions of sodium or hydrogen for ions of mercury that it captures from soil area 22. Once membranes 14 and 18 become substantially saturated with mercury ions, the potential applied across electrodes 26 and 28 is discontinued and membranes 14 and 18 are preferably removed from soil 12 for storage or recovery of the ions. The membranes are also preferably impregnated with a buffer to inhibit the effect of the hydrolysis of water by current from the electrodes.

Bibler, J.P.

1993-03-02T23:59:59.000Z

432

Ion-mobility Spectrometry Based NOx Sensor - Nuclear Engineering Division  

NLE Websites -- All DOE Office Websites (Extended Search)

NPNS > Sensors and NPNS > Sensors and Instrumentation and NDE > Energy System Application > DOE Office of Transportation Technologies > Ion-mobility Spectrometry Based NOx Sensor Capabilities Sensors and Instrumentation and Nondestructive Evaluation Overview Energy System Applications Overview DOE Office of Fossil Energy DOE Office of Transportation Technologies Ion-mobility Spectrometry Based NOx Sensor DOE Office of Power Technology Work for Others Safety-Related Applications Homeland Security Applications Biomedical Applications Millimiter Wave Group Papers Other NPNS Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Sensors and Instrumentation and Nondestructive Evaluation Ion-mobility Spectrometry Based NOx Sensor

433

Ion Trap in a Semiconductor Chip  

E-Print Network (OSTI)

The electromagnetic manipulation of isolated atoms has led to many advances in physics, from laser cooling and Bose-Einstein condensation of cold gases to the precise quantum control of individual atomic ion. Work on miniaturizing electromagnetic traps to the micrometer scale promises even higher levels of control and reliability. Compared with 'chip traps' for confining neutral atoms, ion traps with similar dimensions and power dissipation offer much higher confinement forces and allow unparalleled control at the single-atom level. Moreover, ion microtraps are of great interest in the development of miniature mass spectrometer arrays, compact atomic clocks, and most notably, large scale quantum information processors. Here we report the operation of a micrometer-scale ion trap, fabricated on a monolithic chip using semiconductor micro-electromechanical systems (MEMS) technology. We confine, laser cool, and measure heating of a single 111Cd+ ion in an integrated radiofrequency trap etched from a doped gallium arsenide (GaAs) heterostructure.

D. Stick; W. K. Hensinger; S. Olmschenk; M. J. Madsen; K. Schwab; C. Monroe

2006-01-09T23:59:59.000Z

434

Testing technology. A Sandia Technology Bulletin  

SciTech Connect

This Sandia publication seeks to facilitate technology exchange with industries, universities, and government agencies. It presents brief highlights of four projects. First is a project to simulate the use of airbags to soften the landing of a probe on Mars. Second is the use of a computer simulation system to facilitate the testing of designs for different experiments, both for experimental layout and results analysis. Third is the development of a system for in-house testing of batteries and capacitive energy storage systems, for deployment at the manufacturing sites, as opposed to final use areas. Finally is information on a noncontact measurement system which can be used to determine axes on objects of different shapes, with high precision.

Goetsch, B.; Floyd, H.L.; Doran, L. [eds.

1994-02-01T23:59:59.000Z

435

Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation  

NLE Websites -- All DOE Office Websites (Extended Search)

Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation Improved Electrode Materials in Lithium-Ion (Li-ion) Batteries: Innovation and Optimization Speaker(s): Jordi Cabana-Jimenez Date: January 14, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Venkat Srinivasan The advent of Li-ion batteries has played a central role in the impressive development of portable digital and wireless technology. Such success has triggered further efforts to utilize them as key components in other applications with an even larger impact on society, which include electric vehicles and energy backup for renewable energy sources. However, several challenges need to be met before these expectations can be realized, as Li-ion batteries currently do not meet the power and energy density requirements of these devices. New and better materials for the electrodes

436

Proton Exchange Membranes for Fuel Cells  

Science Conference Proceedings (OSTI)

Proton exchange membrane, also known as polymer electrolyte membrane, fuel cells (PEMFCs) offer the promise of efficient conversion of chemical energy of fuel, such as hydrogen or methanol, into electricity with minimal pollution. Their widespread use to power zero-emission automobiles as part of a hydrogen economy can contribute to enhanced energy security and reduction in greenhouse gas emissions. However, the commercial viability of PEMFC technology is hindered by high cost associated with the membrane electrode assembly (MEA) and poor membrane durability under prolonged operation at elevated temperature. Membranes for automotive fuel cell applications need to perform well over a period comparable to the life of an automotive engine and under heavy load cycling including start-stop cycling under sub-freezing conditions. The combination of elevated temperature, changes in humidity levels, physical stresses and harsh chemical environment contribute to membrane degradation. Perfluorinated sulfonic acid (PFSA)-based membranes, such as Nafion®, have been the mainstay of PEMFC technology. Their limitations, in terms of cost and poor conductivity at low hydration, have led to continuing research into membranes that have good proton conductivity at elevated temperatures above 120 °C and under low humidity conditions. Such membranes have the potential to avoid catalyst poisoning, simplify fuel cell design and reduce the cost of fuel cells. Hydrocarbon-based membranes are being developed as alternatives to PFSA membranes, but concerns about chemical and mechanical stability and durability remain. Novel anhydrous membranes based on polymer gels infused with protic ionic liquids have also been recently proposed, but considerable fundamental research is needed to understand proton transport in novel membranes and evaluate durability under fuel cell operating conditions. In order to advance this promising technology, it is essential to rationally design the next generation of PEMs based on an understanding of chemistry, membrane morphology and proton transport obtained from experiment, theory and computer simulation.

Devanathan, Ramaswami

2010-11-01T23:59:59.000Z

437

Materials and Processing for Lithium-Ion batteries  

Science Conference Proceedings (OSTI)

Lithium ion battery technology is projected to be the leapfrog technology for the electrification of the drivetrain and to provide stationary storage solutions to enable the effective use of renewable energy sources. The technology is already in use for low-power applications such as consumer electronics and power tools. Extensive research and development has enhanced the technology to a stage where it seems very likely that safe and reliable lithium ion batteries will soon be on board hybrid electric and electric vehicles and connected to solar cells and windmills. However, safety of the technology is still a concern, service life is not yet sufficient, and costs are too high. This paper summarizes the state of the art of lithium ion battery technology for nonexperts. It lists materials and processing for batteries and summarizes the costs associated with them. This paper should foster an overall understanding of materials and processing and the need to overcome the remaining barriers for a successful market introduction.

Daniel, Claus [ORNL

2008-01-01T23:59:59.000Z

438

Building Technologies Office: Partner with DOE and Emerging Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

with DOE and Emerging Technologies with DOE and Emerging Technologies The U.S. Department of Energy (DOE) seeks partnerships to research and develop energy efficient building technologies, including advanced lighting, heating, ventilating and air conditioning (HVAC), building envelope (walls and roof), windows, water heating, appliances, and sensors and controls. Some partnership opportunities are described below. Industries Manufacturers and other developers of building energy efficient technologies are encouraged to apply to one of our funding solicitations, called funding opportunity announcements (FOAs), which are posted on the EERE Funding Opportunity Exchange. Interested industries may also consider partnering with one of the DOE-supported national laboratories (Oak Ridge National Laboratory, Lawrence Berkeley National Laboratory, National Renewable Energy Laboratory, Pacific Northwest National Laboratory, etc.) to jointly develop market-ready products through Cooperative Research and Development Agreements (CRADAs). Please consult with the individual labs to determine their procedures for initiating and developing CRADAs.

439

Modeling temperature distribution in cylindrical lithium ion batteries for use in electric vehicle cooling system design.  

E-Print Network (OSTI)

??Recent advancements in lithium ion battery technology have made BEV's a more feasible alternative. However, some safety concerns still exist. While the energy density of… (more)

Jasinski, Samuel Anthony

2008-01-01T23:59:59.000Z

440

TransForum v9n2 - Lithium-ion Battery Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Working With Argonne Contact TTRDC TransForum Vol. 9, No. 2 Argonne's Lithium-ion Battery Research Produces New Materials and Technology Transfer Successes li-ionbattery...

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441

Exchange Server 2010 Unleashed, 1st edition  

Science Conference Proceedings (OSTI)

Microsoft Exchange Server 2010 Unleashed is the ultimate guide to designing, deploying, managing, troubleshooting, and supporting any Exchange Server 2010 environment, no matter how large or complex. Drawing on their extensive experience with hundreds ...

Rand Morimoto; Michael Noel; Chris Amaris; Andrew Abbate; Mark Weinhardt

2009-10-01T23:59:59.000Z

442

New Challenges in Multihospital Kidney Exchange  

E-Print Network (OSTI)

The growth of kidney exchange presents new challenges for the design of kidney exchange clearinghouses. The players now include directors of transplant centers, who see sets of patient-donor pairs, and can choose to reveal ...

Ashlagi, Itai

443

Intelligent predictive control of micro heat exchanger  

Science Conference Proceedings (OSTI)

An intelligent predictive control to temperature control of a micro heat exchanger is addressed. First, the dynamics of the micro heat exchanger is identified using a locally linear model. Then, the predictive control strategy based on this model of ...

Mehdi Galily; Farzad Habibipour Roudsari; Masoum Fardis; Ali Yazdian

2005-06-01T23:59:59.000Z

444

Using Plate Heat Exchangers to Increase Energy Efficiency  

E-Print Network (OSTI)

"In recent years, there has been an increasing awareness of Plate Heat Exchangers (PHE's) in industrial processes around the world. While PHE's have historically been classified as compact heat exchangers, compactness is often a secondary advantage that makes them well suited for retrofit applications in process plants that are often space limited. The primary advantage of PHE's are their high efficiency, flexibility, and reliability. Because of their efficiency, PHE's are being used in more applications where shell and tube heat exchangers were historically used. The high efficiency of the PHE offers the greatest benefits to the process industries. The countercurrent flow configuration, high heat transfer coefficients, and low fouling tendencies result in a heat exchanger that is extremely economical and efficient, especially in energy recovery applications where low LMTD's are common. This paper will review PHE design and construction and show how PHE's can be used to recover energy in many industrial processes. An economical analysis will be included to show the competitiveness of PHE's in energy recovery applications. The paper will review the advantages, benefits, and limitations of PHE's. Recent advances in PHE technology will also be discussed. "

Bailey, K.

1999-05-01T23:59:59.000Z

445

Processing Technology  

Science Conference Proceedings (OSTI)

Aug 5, 2013... relevant polymers and hybrid nanocomposite material systems. ... technology to perform lightweight manufacturing of car components.

446

Technology Transfer  

A new search feature has been implemented, which allows searching of technology transfer information across the Department of Energy Laboratories.

447

Technology Transfer  

Science Conference Proceedings (OSTI)

... get started on understanding accessibility in elections and voting technology. ... bibliography was created by the Georgia Tech Research Institute ...

2013-09-17T23:59:59.000Z

448

Technology Strategies  

Science Conference Proceedings (OSTI)

From the Book:PrefaceTechnology as the Strategic AdvantageWhen I began writing this book I struggled with the direction I wanted it to take. Is this book to be about business, technology, or even the business of technology? I ...

Cooper Smith

2001-07-01T23:59:59.000Z

449

EA-179 California Power Exchange Corporation | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9 California Power Exchange Corporation EA-179 California Power Exchange Corporation Order authorizing Power Exchange Corporation to export electric energy to Mexico. EA-179...

450

SPR - Historical Oil Sales and Exchanges | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

- Historical Oil Sales and Exchanges SPR - Historical Oil Sales and Exchanges SPR - Historical Oil Sales and Exchanges More Documents & Publications Before the Senate Energy and...

451

Deposition of biological aerosols on HVAC heat exchangers  

E-Print Network (OSTI)

Methods to Maintain Heat Exchanger Coil Cleanliness. ASHRAEEngineering Foundation on Heat Exchanger Fouling, UnitedAerosols on HVAC Heat Exchangers Jeffrey Siegel and Iain

Siegel, Jeffrey; Walker, Iain

2001-01-01T23:59:59.000Z

452

Deposition of biological aerosols on HVAC heat exchangers  

E-Print Network (OSTI)

Methods to Maintain Heat Exchanger Coil Cleanliness. ASHRAEEngineering Foundation on Heat Exchanger Fouling, Unitedof HVAC Fin and Tube Heat Exchangers, To be published in the

Siegel, Jeffrey; Walker, Iain

2001-01-01T23:59:59.000Z

453

Freely Floating Exchange Rates Do Not Systematically Overshoot  

E-Print Network (OSTI)

Canadian-U.S. exchange rate, Review of Financial Economics,economy under flexible exchange rates, Journal of Monetary1976, Expectations and Exchange Rate Dynamics, Journal of

Pippenger, John

2008-01-01T23:59:59.000Z

454

Globalization, Macroeconomic Performance, and the Exchange Rates of Emerging Economies  

E-Print Network (OSTI)

The Impact of Exchange Rate Movements on U.S. Foreign Debt."Performance, and the Exchange Rates of Emerging Economies*volatility, exchange-rate regimes, institutions,

Obstfeld, Maurice

2004-01-01T23:59:59.000Z

455

After the Fall: East Asian Exchange Rates Since the Crisis  

E-Print Network (OSTI)

Case for Floating Exchange Rates in Asia. ” In Monetary and2005. “Classifying Exchange Rate Regimes: Deeds vs. Words. ”Ronald I. 2005. Exchange Rates under the East Asian Dollar

Cohen, Benjamin J

2007-01-01T23:59:59.000Z

456

Thermal Response Testing for Geothermal Heat Exchangers ...  

Science Conference Proceedings (OSTI)

Thermal Response Testing for Geothermal Heat Exchangers Begins. The Net-Zero house features