National Library of Energy BETA

Sample records for history sulfur content

  1. Sulfur Content, Weighted Average Refinery Crude Oil Input Qualities

    U.S. Energy Information Administration (EIA) Indexed Site

    (Percent) Type: Sulfur Content API Gravity Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Type Area Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 View History U.S. 1.43 1.38 1.43 1.39 1.43 1.47 1985-2016 PADD 1 0.75 0.63 0.83 0.88 0.90 0.86 1985-2016 East Coast 0.68 0.55 0.76 0.81 0.84 0.79 1985-2016 Appalachian No. 1 1.53 1.57 1.51 1.74 1.58 1.59 1985-2016 PADD 2 1.56 1.58 1.56 1.58 1.45 1.55

  2. Method for reducing the sulfur content of a sulfur-containing hydrocarbon stream

    DOE Patents [OSTI]

    Mahajan, Devinder

    2004-12-28

    The sulfur content of a liquid hydrocarbon stream is reduced under mild conditions by contracting a sulfur-containing liquid hydrocarbon stream with transition metal particles containing the transition metal in a zero oxidation state under conditions sufficient to provide a hydrocarbon product having a reduced sulfur content and metal sulfide particles. The transition metal particles can be produced in situ by adding a transition metal precursor, e.g., a transition metal carbonyl compound, to the sulfur-containing liquid feed stream and sonicating the feed steam/transition metal precursor combination under conditions sufficient to produce the transition metal particles.

  3. Process for production of synthesis gas with reduced sulfur content

    DOE Patents [OSTI]

    Najjar, Mitri S.; Corbeels, Roger J.; Kokturk, Uygur

    1989-01-01

    A process for the partial oxidation of a sulfur- and silicate-containing carbonaceous fuel to produce a synthesis gas with reduced sulfur content which comprises partially oxidizing said fuel at a temperature in the range of 1800.degree.-2200.degree. F. in the presence of a temperature moderator, an oxygen-containing gas and a sulfur capture additive which comprises an iron-containing compound portion and a sodium-containing compound portion to produce a synthesis gas comprising H.sub.2 and CO with a reduced sulfur content and a molten slag which comprises (i) a sulfur-containing sodium-iron silicate phase and (ii) a sodium-iron sulfide phase. The sulfur capture additive may optionally comprise a copper-containing compound portion.

  4. Effect of sulfur content in a sulfur-activated carbon composite on the electrochemical properties of a lithium/sulfur battery

    SciTech Connect (OSTI)

    Park, Jin-Woo; Kim, Changhyeon; Ryu, Ho-Suk; Cho, Gyu-Bong; Cho, Kwon-Koo; Kim, Ki-Won; Ahn, Jou-Hyeon; Wang, Guoxiu; Ahn, Jae-Pyeung; Ahn, Hyo-Jun

    2015-09-15

    Highlights: • The content of sulfur in activated carbon was controlled by solution process. • The sulfur electrode with low sulfur content shows the best performance. • The Li/S battery has capacity of 1360 mAh/g at 1 C and 702 mAh/g at 10 C. - Abstract: The content of sulfur in sulfur/activated carbon composite is controlled from 32.37 wt.% to 55.33 wt.% by a one-step solution-based process. When the sulfur content is limited to 41.21 wt.%, it can be loaded into the pores of an activated carbon matrix in a highly dispersed state. On the contrary, when the sulfur content is 55.33 wt.%, crystalline sulfur can be detected on the surface of the activated carbon matrix. The best electrochemical performance can be obtained for a sulfur electrode with the lowest sulfur content. The sulfur/activated carbon composite with 32.37 wt.% sulfur afforded the highest first discharge capacity of 1360 mAh g{sup −1} at 1 C rate and a large reversible capacity of 702 mAh g{sup −1} at 10 C (16.75 A/g)

  5. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Content, Sales Type, and PAD District 242 Energy Information Administration Petroleum Marketing Annual 1997 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  6. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Content, Sales Type, and PAD District 242 Energy Information Administration Petroleum Marketing Annual 1996 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  7. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    57.8 42.0 See footnotes at end of table. 200 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  8. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    62.6 47.4 See footnotes at end of table. 200 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  9. Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    51.8 See footnotes at end of table. 242 Energy Information Administration Petroleum Marketing Annual 1995 Table 41. No. 2 Diesel Fuel Prices by Sulfur Content, Sales Type,...

  10. ,"Sulfur Content, Weighted Average Refinery Crude Oil Input Qualities"

    U.S. Energy Information Administration (EIA) Indexed Site

    Sulfur Content, Weighted Average Refinery Crude Oil Input Qualities" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Sulfur Content, Weighted Average Refinery Crude Oil Input Qualities",16,"Monthly","6/2016","1/15/1985" ,"Release Date:","8/31/2016" ,"Next Release

  11. Effect of coal quality on maintenance costs at utility plants. Final report. [Effect of ash and sulfur content of coal

    SciTech Connect (OSTI)

    Holt, E.C. Jr.

    1980-06-01

    In an attempt to determine if correlation exists between coal quality, as measured by its ash and sulfur contents, and the maintenance cost at utility plants, an examination was made of the actual maintenance cost experience of selected portions of five TVA coal-fired power plants as a function of the fuel quality consumed during an extended period of time. The results indicate that, according to our decision rules developed in compliance with accepted statistical practices, correlation does exist in many portions of the coal-fired plants for which sufficient maintenance cost records were available. The degree of correlation varies significantly among the individual portions of a particular plant as well as among the various plants. However, the indicators are sufficient to confirm that a change (within the design constraints of the unit) in the ash and/or sulfur content of the coal being consumed by a utility boiler will have a proportionate effect on the maintenance cost at the plant. In the cases examined, each percent variation in ash content could have a monetary effect of from $0.05 to $0.10 per ton of coal consumed. Similarly, each percent variation in sulfur content could influence maintenance costs from $0.30 to $0.50 per ton of coal. Since these values are based on preliminary analysis of limited data, they must be approached with caution and not removed from the context in which they are presented. However, if borne out by further study, the potential magnitude of such savings may be sufficient to justify the acquisition of superior coal supplies, either by changing the source and/or using preparation to obtain a lower ash and sulfur fuel.

  12. History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History History Print Photos 20th Anniversary Kickoff Brunch, January 11, 2013 ALS 20th Anniversary Celebration, October 4, 2013 Videos ALS Dedication, October 22, 1993 (excerpts) ALS Dedication, October 22, 1993 (full) The ALS Beamline Clock Articles BRIGHT BEAMS: The Advanced Light Source LBL Research Review (Spring 1993) A history of the ALS, From Cyclotron to Synchrotron Interactive Timeline ALS History: The First 20 Years

  13. History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History Print Photos 20th Anniversary Kickoff Brunch, January 11, 2013 ALS 20th Anniversary Celebration, October 4, 2013 Videos ALS Dedication, October 22, 1993 (excerpts) ALS Dedication, October 22, 1993 (full) The ALS Beamline Clock Articles BRIGHT BEAMS: The Advanced Light Source LBL Research Review (Spring 1993) A history of the ALS, From Cyclotron to Synchrotron Interactive Timeline ALS History: The First 20 Years

  14. history

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Volume One Film Collection Volume Two 75th Anniversary Hydropower in the Northwest Woody Guthrie Videos Strategic Direction Branding & Logos Power of the River History Book...

  15. history

    National Nuclear Security Administration (NNSA)

    several contributions over SRS's history, including large-scale production of aluminum-lithium alloys; production of kilogram quantities of radioactive waste glass; materials...

  16. History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History Over 100 Years of Collaborative Energy R&D A mine tunnel partially coated with light-colored rock duct (photo credit: National Archives and Records Administration NETL's long history of leadership in the research and development of fossil energy reaches back to the days of NETL's predecessor organization, the century-old U.S. Bureau of Mines. The Bureau of Mines was a leader in technological advancements that benefitted American industries and consumers. Commencing as a small agency

  17. CONTENTS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8.0 - HOISTING AND RIGGING IN HOSTILE ENVIRONMENTS February 18, 2010 Rev 1 Page 1 CHAPTER 18.0 TABLE OF CONTENTS TABLE OF CONTENTS..................................................................................................................................1 PAGINATION TABLE.....................................................................................................................................1 18.0 HOISTING AND RIGGING IN HOSTILE ENVIRONMENTS

  18. Two stage sorption of sulfur compounds

    DOE Patents [OSTI]

    Moore, William E.

    1992-01-01

    A two stage method for reducing the sulfur content of exhaust gases is disclosed. Alkali- or alkaline-earth-based sorbent is totally or partially vaporized and introduced into a sulfur-containing gas stream. The activated sorbent can be introduced in the reaction zone or the exhaust gases of a combustor or a gasifier. High efficiencies of sulfur removal can be achieved.

  19. CONTENTS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3.0 - CRITICAL, SPECIAL, & ENGINEERED LIFTS January 4, 2016 Rev 1 Page 1 CHAPTER 3.0 TABLE OF CONTENTS 3.0 CRITICAL LIFTS ....................................................................................................................................... 3 3.1 SCOPE .......................................................................................................................................................... 3 3.2 CRITICAL LIFT DETERMINATION

  20. CONTENTS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Volume 2, Sampling Technical Requirements Effective Date: 6/1/07 Vol. 2: i CONTENTS 1.0 SAMPLING AND ANALYSIS PROCESS .................................................................... 1-1 2.0 DATA QUALITY OBJECTIVES ................................................................................... 2-1 3.0 SAMPLING SYSTEMS .................................................................................................. 3-1 3.1 Facility Management

  1. CONTENTS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Volume 4, Laboratory Technical Requirements Effective Date: 6/1/07 Vol. 4: i CONTENTS 1.0 QUALITY ASSURANCE OBJECTIVES......................................................................... 1-1 1.1 DATA QUALITY OBJECTIVES............................................................................ 1-1 1.2 CLIENT DATA QUALITY REQUIREMENTS ..................................................... 1-2 1.2.1 Precision

  2. Contents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Program and Book of Abstracts Contents Organizers i-ii Detailed Program iii-viii Oral presentations 1-38 Posters P1-P27 Program Schematic back cover The LAPD Symposium brings together scientists from laser physics, low- temperature plasma chemistry and physics, and nuclear fusion. The Symposium is an important, unique, and fruitful source for cross-fertilization between these fields. Major topics include laser-aided diagnostics for fusion plasmas, industrial process plasmas, and environmental

  3. Contents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 August 2005 Contents Bechtel Nevada achieves 5 million hours! 1 WSI graduates fresh members of security 1 protective forces Handling radiation emergencies 2 SiteLines features a new editor 2 Rocky Flats survey 3 NTS Swift Water Rescue Team practices on the 3 Colorado River Drilling Program overcomes challenges at the NTS 3 Toastmasters: making effective communication a 4 worldwide reality Atomic Testing Museum update 4 Two more successful shots at JASPER 5 Hazardous Substance Inventory users 5

  4. Contents

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7 June/July 2005 Contents Fires burn Nevada Test Site in June NNSA/NSO and Department of Homeland Security break ground at the Nevada Test Site U1h ribbon cutting marks the remarkable New training grounds dedicated at NTS Changes enhance the EAP Unicorn subcritical experiment completes key milestone New communication system takes flight SiteLines goes online DNFSB visits U1a Funnel clouds at the Nevada Test Site Community Environmental Monitor receives EPA award Take Our Daughters and Sons to

  5. Process for reducing sulfur in coal char

    DOE Patents [OSTI]

    Gasior, Stanley J.; Forney, Albert J.; Haynes, William P.; Kenny, Richard F.

    1976-07-20

    Coal is gasified in the presence of a small but effective amount of alkaline earth oxide, hydroxide or carbonate to yield a char fraction depleted in sulfur. Gases produced during the reaction are enriched in sulfur compounds and the alkaline earth compound remains in the char fraction as an alkaline earth oxide. The char is suitable for fuel use, as in a power plant, and during combustion of the char the alkaline earth oxide reacts with at least a portion of the sulfur oxides produced from the residual sulfur contained in the char to further lower the sulfur content of the combustion gases.

  6. Graphene-sulfur nanocomposites for rechargeable lithium-sulfur...

    Office of Scientific and Technical Information (OSTI)

    Title: Graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes Rechargeable lithium-sulfur batteries having a cathode that includes a graphene-sulfur ...

  7. Uses of lunar sulfur

    SciTech Connect (OSTI)

    Vaniman, D.T.; Pettit, D.R.; Heiken, G.

    1988-01-01

    Sulfur and sulfur compounds have a wide range of applications for their fluid, electrical, chemical and biochemical properties. Although low in abundance on the Moon (/approximately/0.1% in mare soils), sulfur is surface-correlated and relatively extractable. Co-production of sulfur during oxygen extraction from ilmenite-rich soils could yield sulfur in masses up to 10% of the mass of oxygen produced. Sulfur deserves serious consideration as a lunar resource. 29 refs., 3 figs.

  8. Sulfuric acid-sulfur heat storage cycle

    DOE Patents [OSTI]

    Norman, John H.

    1983-12-20

    A method of storing heat is provided utilizing a chemical cycle which interconverts sulfuric acid and sulfur. The method can be used to levelize the energy obtained from intermittent heat sources, such as solar collectors. Dilute sulfuric acid is concentrated by evaporation of water, and the concentrated sulfuric acid is boiled and decomposed using intense heat from the heat source, forming sulfur dioxide and oxygen. The sulfur dioxide is reacted with water in a disproportionation reaction yielding dilute sulfuric acid, which is recycled, and elemental sulfur. The sulfur has substantial potential chemical energy and represents the storage of a significant portion of the energy obtained from the heat source. The sulfur is burned whenever required to release the stored energy. A particularly advantageous use of the heat storage method is in conjunction with a solar-powered facility which uses the Bunsen reaction in a water-splitting process. The energy storage method is used to levelize the availability of solar energy while some of the sulfur dioxide produced in the heat storage reactions is converted to sulfuric acid in the Bunsen reaction.

  9. Sulfur recovery process

    SciTech Connect (OSTI)

    Hise, R.E.; Cook, W.J.

    1991-06-04

    This paper describes a method for recovering sulfur from a process feed stream mixture of gases comprising sulfur-containing compounds including hydrogen sulfide using the Claus reaction to convert sulfur-containing compounds to elemental sulfur and crystallization to separate sulfur-containing compounds from a tail gas of the Claus reaction for further processing as a recycle stream. It comprises: providing a Claus feed stream containing a stoichiometric excess of hydrogen sulfide, the Claus feed stream including the process feed stream and the recycles stream; introducing the Claus feed stream and an oxidizing agent into a sulfur recovery unit for converting sulfur-containing compounds in the Claus feed stream to elemental sulfur; withdrawing the tail gas from the sulfur recovery unit; separating water from the tail gas to producing a dehydrated tail gas; separating sulfur-containing compounds including carbonyl sulfide from the dehydrated tail gas as an excluded material by crystallization and withdrawing an excluded material-enriched output from the crystallization to produce the recycle stream; and combining the recycle stream with the process feed stream to produce the Claus feed stream.

  10. Process for removing pyritic sulfur from bituminous coals

    DOE Patents [OSTI]

    Pawlak, Wanda; Janiak, Jerzy S.; Turak, Ali A.; Ignasiak, Boleslaw L.

    1990-01-01

    A process is provided for removing pyritic sulfur and lowering ash content of bituminous coals by grinding the feed coal, subjecting it to micro-agglomeration with a bridging liquid containing heavy oil, separating the microagglomerates and separating them to a water wash to remove suspended pyritic sulfur. In one embodiment the coal is subjected to a second micro-agglomeration step.

  11. Future Sulfur Dioxide Emissions

    SciTech Connect (OSTI)

    Smith, Steven J.; Pitcher, Hugh M.; Wigley, Tom M.

    2005-12-01

    The importance of sulfur dioxide emissions for climate change is now established, although substantial uncertainties remain. This paper presents projections for future sulfur dioxide emissions using the MiniCAM integrated assessment model. A new income-based parameterization for future sulfur dioxide emissions controls is developed based on purchasing power parity (PPP) income estimates and historical trends related to the implementation of sulfur emissions limitations. This parameterization is then used to produce sulfur dioxide emissions trajectories for the set of scenarios developed for the Special Report on Emission Scenarios (SRES). We use the SRES methodology to produce harmonized SRES scenarios using the latest version of the MiniCAM model. The implications, and requirements, for IA modeling of sulfur dioxide emissions are discussed. We find that sulfur emissions eventually decline over the next century under a wide set of assumptions. These emission reductions result from a combination of emission controls, the adoption of advanced electric technologies, and a shift away from the direct end use of coal with increasing income levels. Only under a scenario where incomes in developing regions increase slowly do global emission levels remain at close to present levels over the next century. Under a climate policy that limits emissions of carbon dioxide, sulfur dioxide emissions fall in a relatively narrow range. In all cases, the relative climatic effect of sulfur dioxide emissions decreases dramatically to a point where sulfur dioxide is only a minor component of climate forcing by the end of the century. Ecological effects of sulfur dioxide, however, could be significant in some developing regions for many decades to come.

  12. ADVANCED SULFUR CONTROL CONCEPTS

    SciTech Connect (OSTI)

    Apostolos A. Nikolopoulos; Santosh K. Gangwal; William J. McMichael; Jeffrey W. Portzer

    2003-01-01

    Conventional sulfur removal in integrated gasification combined cycle (IGCC) power plants involves numerous steps: COS (carbonyl sulfide) hydrolysis, amine scrubbing/regeneration, Claus process, and tail-gas treatment. Advanced sulfur removal in IGCC systems involves typically the use of zinc oxide-based sorbents. The sulfides sorbent is regenerated using dilute air to produce a dilute SO{sub 2} (sulfur dioxide) tail gas. Under previous contracts the highly effective first generation Direct Sulfur Recovery Process (DSRP) for catalytic reduction of this SO{sub 2} tail gas to elemental sulfur was developed. This process is currently undergoing field-testing. In this project, advanced concepts were evaluated to reduce the number of unit operations in sulfur removal and recovery. Substantial effort was directed towards developing sorbents that could be directly regenerated to elemental sulfur in an Advanced Hot Gas Process (AHGP). Development of this process has been described in detail in Appendices A-F. RTI began the development of the Single-step Sulfur Recovery Process (SSRP) to eliminate the use of sorbents and multiple reactors in sulfur removal and recovery. This process showed promising preliminary results and thus further process development of AHGP was abandoned in favor of SSRP. The SSRP is a direct Claus process that consists of injecting SO{sub 2} directly into the quenched coal gas from a coal gasifier, and reacting the H{sub 2}S-SO{sub 2} mixture over a selective catalyst to both remove and recover sulfur in a single step. The process is conducted at gasifier pressure and 125 to 160 C. The proposed commercial embodiment of the SSRP involves a liquid phase of molten sulfur with dispersed catalyst in a slurry bubble-column reactor (SBCR).

  13. Elemental sulfur recovery process

    DOE Patents [OSTI]

    Flytzani-Stephanopoulos, Maria; Hu, Zhicheng

    1993-01-01

    An improved catalytic reduction process for the direct recovery of elemental sulfur from various SO.sub.2 -containing industrial gas streams. The catalytic process provides combined high activity and selectivity for the reduction of SO.sub.2 to elemental sulfur product with carbon monoxide or other reducing gases. The reaction of sulfur dioxide and reducing gas takes place over certain catalyst formulations based on cerium oxide. The process is a single-stage, catalytic sulfur recovery process in conjunction with regenerators, such as those used in dry, regenerative flue gas desulfurization or other processes, involving direct reduction of the SO.sub.2 in the regenerator off gas stream to elemental sulfur in the presence of a catalyst.

  14. Elemental sulfur recovery process

    DOE Patents [OSTI]

    Flytzani-Stephanopoulos, M.; Zhicheng Hu.

    1993-09-07

    An improved catalytic reduction process for the direct recovery of elemental sulfur from various SO[sub 2]-containing industrial gas streams. The catalytic process provides combined high activity and selectivity for the reduction of SO[sub 2] to elemental sulfur product with carbon monoxide or other reducing gases. The reaction of sulfur dioxide and reducing gas takes place over certain catalyst formulations based on cerium oxide. The process is a single-stage, catalytic sulfur recovery process in conjunction with regenerators, such as those used in dry, regenerative flue gas desulfurization or other processes, involving direct reduction of the SO[sub 2] in the regenerator off gas stream to elemental sulfur in the presence of a catalyst. 4 figures.

  15. Biogenic sulfur source strengths

    SciTech Connect (OSTI)

    Adams, D.F.; Farwell, S.O.; Robinson, E.; Pack, M.R.; Bamesberger, W.L.

    1981-12-01

    Conclusions are presented from a 4-yr field measurement study of biogenic sulfur gas emissions from soils, and some water and vegetated surfaces, at 35 locales in the eastern and southeastern United States. More than one soil order was examined whenever possible to increase the data base obtained from the 11 major soil orders comprising the study area. Data analysis and emission model development were based upon an (80 x 80)-km/sup 2/ grid system. The measured sulfur fluxes, adjusted for the annual mean temperature for each sampling locale, weigted by the percentage of each soil order within each grid, and averaged for each of the east-west grid tiers from 47/sup 0/N to 25/sup 0/N latitude, showed an exponential north-to-south increase in total sulfur gas flux. Our model predits an additional increase of nearly 25-fold in sulfur flux between 25/sup 0/N and the equator.

  16. Bacterial Sulfur Storage Globules

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Prominent among these are the sulfide-oxidizing bacteria that oxidize sulfide (S2-) to sulfate (SO42-). Many of these organisms can store elemental sulfur (S0) in "globules" for...

  17. Separation of sulfur isotopes

    DOE Patents [OSTI]

    DeWitt, Robert; Jepson, Bernhart E.; Schwind, Roger A.

    1976-06-22

    Sulfur isotopes are continuously separated and enriched using a closed loop reflux system wherein sulfur dioxide (SO.sub.2) is reacted with sodium hydroxide (NaOH) or the like to form sodium hydrogen sulfite (NaHSO.sub.3). Heavier sulfur isotopes are preferentially attracted to the NaHSO.sub.3, and subsequently reacted with sulfuric acid (H.sub.2 SO.sub.4) forming sodium hydrogen sulfate (NaHSO.sub.4) and SO.sub.2 gas which contains increased concentrations of the heavier sulfur isotopes. This heavy isotope enriched SO.sub.2 gas is subsequently separated and the NaHSO.sub.4 is reacted with NaOH to form sodium sulfate (Na.sub.2 SO.sub.4) which is subsequently decomposed in an electrodialysis unit to form the NaOH and H.sub.2 SO.sub.4 components which are used in the aforesaid reactions thereby effecting sulfur isotope separation and enrichment without objectionable loss of feed materials.

  18. Sodium-sulfur thermal battery

    SciTech Connect (OSTI)

    Ludwig, F.A.

    1990-12-11

    This paper discusses a sodium-sulfur thermal battery for generating electrical energy at temperatures above the melting point of sodium metal and sulfur. It comprises a sodium electrode comprising sodium metal; a sulfur electrode comprising sulfur; and a separator located between the sodium and sulfur electrodes. The separator having sufficient porosity to allow preliminary migration of fluid sodium metal and fluid sulfur and fluid sodium polysulfides therethrough during operation of the thermal battery to form a mixed polysulfides electrolyte gradient within the separator.

  19. Sodium sulfur battery seal

    DOE Patents [OSTI]

    Mikkor, Mati

    1981-01-01

    This disclosure is directed to an improvement in a sodium sulfur battery construction in which a seal between various battery compartments is made by a structure in which a soft metal seal member is held in a sealing position by holding structure. A pressure applying structure is used to apply pressure on the soft metal seal member when it is being held in sealing relationship to a surface of a container member of the sodium sulfur battery by the holding structure. The improvement comprises including a thin, well-adhered, soft metal layer on the surface of the container member of the sodium sulfur battery to which the soft metal seal member is to be bonded.

  20. Catalyst for the reduction of sulfur dioxide to elemental sulfur

    DOE Patents [OSTI]

    Jin, Yun; Yu, Qiquan; Chang, Shih-Ger

    1996-01-01

    The inventive catalysts allow for the reduction of sulfur dioxide to elemental sulfur in smokestack scrubber environments. The catalysts have a very high sulfur yield of over 90% and space velocity of 10,000 h.sup.-1. They also have the capacity to convert waste gases generated during the initial conversion into elemental sulfur. The catalysts have inexpensive components, and are inexpensive to produce. The net impact of the invention is to make this technology practically available to industrial applications.

  1. Sodium sulfur battery seal

    DOE Patents [OSTI]

    Topouzian, Armenag

    1980-01-01

    This invention is directed to a seal for a sodium sulfur battery in which a flexible diaphragm sealing elements respectively engage opposite sides of a ceramic component of the battery which separates an anode compartment from a cathode compartment of the battery.

  2. Process for forming sulfuric acid

    DOE Patents [OSTI]

    Lu, Wen-Tong P.

    1981-01-01

    An improved electrode is disclosed for the anode in a sulfur cycle hydrogen generation process where sulfur dioxie is oxidized to form sulfuric acid at the anode. The active compound in the electrode is palladium, palladium oxide, an alloy of palladium, or a mixture thereof. The active compound may be deposited on a porous, stable, conductive substrate.

  3. SULFUR POLYMER ENCAPSULATION.

    SciTech Connect (OSTI)

    KALB, P.

    2001-08-22

    Sulfur polymer cement (SPC) is a thermoplastic polymer consisting of 95 wt% elemental sulfur and 5 wt% organic modifiers to enhance long-term durability. SPC was originally developed by the U.S. Bureau of Mines as an alternative to hydraulic cement for construction applications. Previous attempts to use elemental sulfur as a construction material in the chemical industry failed due to premature degradation. These failures were caused by the internal stresses that result from changes in crystalline structure upon cooling of the material. By reacting elemental sulfur with organic polymers, the Bureau of Mines developed a product that successfully suppresses the solid phase transition and significantly improves the stability of the product. SPC, originally named modified sulfur cement, is produced from readily available, inexpensive waste sulfur derived from desulfurization of both flue gases and petroleum. The commercial production of SPC is licensed in the United States by Martin Resources (Odessa, Texas) and is marketed under the trade name Chement 2000. It is sold in granular form and is relatively inexpensive ({approx}$0.10 to 0.12/lb). Application of SPC for the treatment of radioactive, hazardous, and mixed wastes was initially developed and patented by Brookhaven National Laboratory (BNL) in the mid-1980s (Kalb and Colombo, 1985; Colombo et al., 1997). The process was subsequently investigated by the Commission of the European Communities (Van Dalen and Rijpkema, 1989), Idaho National Engineering Laboratory (Darnell, 1991), and Oak Ridge National Laboratory (Mattus and Mattus, 1994). SPC has been used primarily in microencapsulation applications but can also be used for macroencapsulation of waste. SPC microencapsulation has been demonstrated to be an effective treatment for a wide variety of wastes, including incinerator hearth and fly ash; aqueous concentrates such as sulfates, borates, and chlorides; blowdown solutions; soils; and sludges. It is not

  4. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Imports of Distillate Fuel Oil, 0 to 15 ppm Sulfur (Thousand Barrels per Day)","U.S. Imports of Distillate Fuel Oil, 0 to 15 ppm Sulfur, Bonded (Thousand Barrels per ...

  5. Catalyst for the reduction of sulfur dioxide to elemental sulfur

    DOE Patents [OSTI]

    Jin, Y.; Yu, Q.; Chang, S.G.

    1996-02-27

    The inventive catalysts allow for the reduction of sulfur dioxide to elemental sulfur in smokestack scrubber environments. The catalysts have a very high sulfur yield of over 90% and space velocity of 10,000 h{sup {minus}1}. They also have the capacity to convert waste gases generated during the initial conversion into elemental sulfur. The catalysts have inexpensive components, and are inexpensive to produce. The net impact of the invention is to make this technology practically available to industrial applications. 21 figs.

  6. Sulfur@Carbon Cathodes for Lithium Sulfur Batteries > Research...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for Lithium Sulfur Batteries Better Ham & Cheese: Enhanced Anodes and Cathodes for Fuel Cells Epitaxial Single Crystal Nanostructures for Batteries & PVs High Performance ...

  7. Diesel Emission Control -- Sulfur Effects (DECSE) Program; Phase I Interim Date Report No. 3: Diesel Fuel Sulfur Effects on Particulate Matter Emissions

    SciTech Connect (OSTI)

    DOE; ORNL; NREL; EMA; MECA

    1999-11-15

    The Diesel Emission Control-Sulfur Effects (DECSE) is a joint government/industry program to determine the impact of diesel fuel sulfur levels on emission control systems whose use could lower emissions of nitrogen oxides (NO{sub x}) and particulate matter (PM) from on-highway trucks in the 2002--2004 model years. Phase 1 of the program was developed with the following objectives in mind: (1) evaluate the effects of varying the level of sulfur content in the fuel on the emission reduction performance of four emission control technologies; and (2) measure and compare the effects of up to 250 hours of aging on selected devices for multiple levels of fuel sulfur content. This interim report covers the effects of diesel fuel sulfur level on particulate matter emissions for four technologies.

  8. Evaluation of Sulfur in Syngas

    SciTech Connect (OSTI)

    None

    2006-04-01

    This project will define the options and costs at different scales of technology that can be used to remove sulfur from syngas.

  9. Method of removing and recovering elemental sulfur from highly reducing gas streams containing sulfur gases

    DOE Patents [OSTI]

    Gangwal, Santosh K.; Nikolopoulos, Apostolos A.; Dorchak, Thomas P.; Dorchak, Mary Anne

    2005-11-08

    A method is provided for removal of sulfur gases and recovery of elemental sulfur from sulfur gas containing supply streams, such as syngas or coal gas, by contacting the supply stream with a catalyst, that is either an activated carbon or an oxide based catalyst, and an oxidant, such as sulfur dioxide, in a reaction medium such as molten sulfur, to convert the sulfur gases in the supply stream to elemental sulfur, and recovering the elemental sulfur by separation from the reaction medium.

  10. Process for removing sulfur from sulfur-containing gases

    DOE Patents [OSTI]

    Rochelle, Gary T.; Jozewicz, Wojciech

    1989-01-01

    The present disclosure relates to improved processes for treating hot sulfur-containing flue gas to remove sulfur therefrom. Processes in accorda The government may own certain rights in the present invention pursuant to EPA Cooperative Agreement CR 81-1531.

  11. Nonflame, source-induced sulfur fluorescence detector for sulfur-containing compounds

    SciTech Connect (OSTI)

    Gage, D.R.; Farwell, S.O.

    1980-12-01

    Results of some preliminary investigations of the fluorescence spectra of S/sub 2/ and the non-flame production of S/sub 2/ from sulfur-containing molecules are reported. Passage of the gas to be analyzed through a catalyst-oven containing a plug of NiO/sub 2//Al/sub 2/O/sub 3/ catalyst containing 10 wt% NiO/sub 2/ and heated to 400/sup 0/C resulted in conversion of H/sub 2/S to S/sub 2/ and elemental sulfur. The S/sub 2/ was detected by measurement of its fluorescence bands at 260 and 310nm, and elemental sulfur condensed on the cool parts of the apparatus. However, determination of sulfur-content of gas mixtures with the apparatus described herein were not as repeatable as desired, and the work is being continued on various facets of the non-flame system with work being directed toward the evaluation of different catalysts, catalyst temperature, design of a smaller detector geometry utilizing a pulsed-light excitation source, a windowless cell, and optical filters instead of monochromators to select the S/sub 2/ excitation and emission wavelengths. (BLM)

  12. Volume efficient sodium sulfur battery

    DOE Patents [OSTI]

    Mikkor, Mati

    1980-01-01

    In accordance with the teachings of this specification, a sodium sulfur battery is formed as follows. A plurality of box shaped sulfur electrodes are provided, the outer surfaces of which are defined by an electrolyte material. Each of the electrodes have length and width dimensions substantially greater than the thicknesses thereof as well as upwardly facing surface and a downwardly facing surface. An electrode structure is contained in each of the sulfur electrodes. A holding structure is provided for holding the plurality of sulfur electrodes in a stacked condition with the upwardly facing surface of one sulfur electrode in facing relationship to the downwardly facing surface of another sulfur electrode thereabove. A small thickness dimension separates each of the stacked electrodes thereby defining between each pair of sulfur electrodes a volume which receives the sodium reactant. A reservoir is provided for containing sodium. A manifold structure interconnects the volumes between the sulfur electrodes and the reservoir. A metering structure controls the flow of sodium between the reservoir and the manifold structure.

  13. Demand, Supply, and Price Outlook for Low-Sulfur Diesel Fuel

    Reports and Publications (EIA)

    1993-01-01

    The Clean Air Act Amendments of 1990 established a new, sharply lower standard for the maximum sulfur content of on-highway diesel fuel, to take effect October 1, 1993.

  14. Ultra Low Sulfur Home Heating Oil Demonstration Project

    SciTech Connect (OSTI)

    Batey, John E.; McDonald, Roger

    2015-09-30

    This Ultra Low Sulfur (ULS) Home Heating Oil Demonstration Project was funded by the New York State Energy Research and Development Authority (NYSERDA) and has successfully quantified the environmental and economic benefits of switching to ULS (15 PPM sulfur) heating oil. It advances a prior field study of Low Sulfur (500 ppm sulfur) heating oil funded by NYSERDA and laboratory research conducted by Brookhaven National Laboratory (BNL) and Canadian researchers. The sulfur oxide and particulate matter (PM) emissions are greatly reduced as are boiler cleaning costs through extending cleaning intervals. Both the sulfur oxide and PM emission rates are directly related to the fuel oil sulfur content. The sulfur oxide and PM emission rates approach near-zero levels by switching heating equipment to ULS fuel oil, and these emissions become comparable to heating equipment fired by natural gas. This demonstration project included an in-depth review and analysis of service records for both the ULS and control groups to determine any difference in the service needs for the two groups. The detailed service records for both groups were collected and analyzed and the results were entered into two spreadsheets that enabled a quantitative side-by-side comparison of equipment service for the entire duration of the ULS test project. The service frequency for the ULS and control group were very similar and did indicate increased service frequency for the ULS group. In fact, the service frequency with the ULS group was slightly less (7.5 percent) than the control group. The only exception was that three burner fuel pump required replacement for the ULS group and none were required for the control group.

  15. An Evolutionary Arms Race for Sulfur

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    globally distributed sulfur-oxidizing bacteria in the deep sea carry bacterial genes for the oxidation of elemental sulfur. Although such observations are common in...

  16. LOW SULFUR HOME HEATING OIL DEMONSTRATION PROJECT SUMMARY REPORT.

    SciTech Connect (OSTI)

    BATEY, J.E.; MCDONALD, R.J.

    2005-06-01

    This project was funded by NYSERDA and has clearly demonstrated many advantages of using low sulfur content heating oil to provide thermal comfort in homes. Prior laboratory research in the United States and Canada had indicated a number of potential benefits of using lower sulfur (0.05%) heating oil. However, this prior research has not resulted in the widespread use of low sulfur fuel oil in the marketplace. The research project described in this report was conducted with the assistance of a well-established fuel oil marketer in New York State (NYS) and has provided clear proof of the many real-world advantages of marketing and using low sulfur content No. 2 fuel oil. The very positive experience of the participating marketer over the past three years has already helped to establish low sulfur heating oil as a viable option for many other fuel marketers. In large part, based on the initial findings of this project and the experience of the participating NYS oilheat marketer, the National Oilheat Research Alliance (NORA) has already fully supported a resolution calling for the voluntary use of low sulfur (0.05 percent) home heating oil nationwide. The NORA resolution has the goal of converting eighty percent of all oil-heated homes to the lower sulfur fuel (0.05 percent by weight) by the year 2007. The Oilheat Manufacturers Association (OMA) has also passed a resolution fully supporting the use of lower sulfur home heating oil in the equipment they manufacture. These are important endorsements by prominent national oil heat associations. Using lower sulfur heating oil substantially lowers boiler and furnace fouling rates. Laboratory studies had indicated an almost linear relationship between sulfur content in the oil and fouling rates. The completed NYSERDA project has verified past laboratory studies in over 1,000 occupied residential homes over the course of three heating seasons. In fact, the reduction in fouling rates so clearly demonstrated by this project is

  17. Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes

    SciTech Connect (OSTI)

    Liu, Jun; Lemmon, John P; Yang, Zhenguo; Cao, Yuliang; Li, Xiaolin

    2015-04-07

    A method of preparing a graphene-sulfur nanocomposite for a cathode in a rechargeable lithium-sulfur battery comprising thermally expanding graphite oxide to yield graphene layers, mixing the graphene layers with a first solution comprising sulfur and carbon disulfide, evaporating the carbon disulfide to yield a solid nanocomposite, and grinding the solid nanocomposite to yield the graphene-sulfur nanocomposite. Rechargeable-lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter of less than 50 nm.

  18. Graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes

    DOE Patents [OSTI]

    Liu, Jun; Lemmon, John P; Yang, Zhenguo; Cao, Yuiliang; Li, Xiaolin

    2014-06-17

    Rechargeable lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter less than 50 nm..

  19. Alkali metal/sulfur battery

    DOE Patents [OSTI]

    Anand, Joginder N.

    1978-01-01

    Alkali metal/sulfur batteries in which the electrolyte-separator is a relatively fragile membrane are improved by providing means for separating the molten sulfur/sulfide catholyte from contact with the membrane prior to cooling the cell to temperatures at which the catholyte will solidify. If the catholyte is permitted to solidify while in contact with the membrane, the latter may be damaged. The improvement permits such batteries to be prefilled with catholyte and shipped, at ordinary temperatures.

  20. Sulfur gas emissions from stored flue-gas-desulfurization sludges

    SciTech Connect (OSTI)

    Adams, D.F.; Farwell, S.O.

    1980-01-01

    In field studies conducted for the Electric Power Research Institute by the University of Washington (1978) and the University of Idaho (1979), 13 gas samples from sludge storage sites at coal-burning power plants were analyzed by wall-coated open-tube cryogenic capillary-column gas chromatography with a sulfur-selective flame-photometric detector. Hydrogen sulfide, carbonyl sulfide, dimethyl sulfide, carbon disulfide, and dimethyl disulfide were identified in varying concentrations and ratios in the emissions from both operating sludge ponds and landfills and from FGD sludge surfaces that had been stored in the open for 3-32 mo or longer. Other sulfur compounds, probably propanethiols, were found in emissions from some sludges. Chemical ''stabilization/fixation'' sulfate-sulfite ratio, sludge water content, and temperature were the most significant variables controlling sulfur gas production. The average sulfur emissions from each of the 13 FGD storage sites ranged from 0.01 to 0.26 g/sq m/yr sulfur.

  1. Investigation of Sulfur Deactivation on Cu/Zeolite SCR Catalysts...

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

    Sulfur Deactivation on CuZeolite SCR Catalysts in Diesel Application Investigation of Sulfur Deactivation on CuZeolite SCR Catalysts in Diesel Application Investigation of Sulfur ...

  2. Martinez Sulfuric Acid Regeneration Plt Biomass Facility | Open...

    Open Energy Info (EERE)

    Martinez Sulfuric Acid Regeneration Plt Biomass Facility Jump to: navigation, search Name Martinez Sulfuric Acid Regeneration Plt Biomass Facility Facility Martinez Sulfuric Acid...

  3. Identification of Martian Regolith Sulfur Components In Shergottites...

    Office of Scientific and Technical Information (OSTI)

    Sulfur Components In Shergottites Using Sulfur K XANES and FeS Ratios. Citation Details In-Document Search Title: Identification of Martian Regolith Sulfur Components In ...

  4. NERSC History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Interactive Timeline History of Systems NERSC Stakeholders Usage and User Demographics Careers Visitor Info Web Policies Home » About » NERSC History NERSC History Powering Scientific Discovery Since 1974 Contact: Jon Bashor, jbashor@lbl.gov, +1 510 486 4236 For more information, read "25 Years of Leadership," a historical perspective written at NERSC's quarter-century mark.»Download (PDF | 32MB) The oil crisis of 1973 did more than create long lines at the gas pumps - it

  5. Our History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Our History Our History The Lab has a proud history and heritage of more than 70 years of science and innovation. The people at the Laboratory work on advanced technologies to provide the best scientific and engineering solutions to the nation's most crucial security challenges. Los Alamos Gate 1942 Our primary responsibility throughout the decades: national security The primary responsibility of the Laboratory is assuring the safety and reliability of the nation's nuclear deterrent. Though the

  6. Combining automatic titration of total iron and sulfur in thermal battery materials

    SciTech Connect (OSTI)

    Marley, N.A.

    1986-05-28

    Optimal thermal battery performance requires careful control of the iron disulfide content in the catholyte mixture. Previously, the iron and sulfur content of battery materials was determined separately, each requiring a lengthy sample preparation and clean up procedure. A new method has been developed which allows both determinations to be made on the same sample following a simple dissolution procedure. Sample preparation requires oxidation and dissolution with nitric acid followed by dissolution in hydrochloric acid. Iron and sulfur are then determined on sample aliquots by automatic titration. The implementation of this combined procedure for the determination of iron and sulfur by automatic titration has resulted in a substantial reduction in the analysis time. Since sample aliquots are used for each determination, the need to repeat a sample for analysis is rare, improving both the analytical efficiency and sample throughput. Results obtained for sulfur show an improved precision.

  7. Adsorbed sulfur-gas methods for both near-surface exploration and downhole logging

    SciTech Connect (OSTI)

    Farwell, S.O.; Barinaga, C.J.; Dolenc, M.R.; Farwell, G.H.

    1986-08-01

    The use of sulfur-containing gases in petroleum exploration is supported by (1) the idea that sulfur may play a role in petroleum genesis, (2) the corresponding existence of sulfur-containing compounds in petroleum and the potential for vertical migration of the low-molecular-weight sulfur species from these reservoirs, (3) the production of H/sub 2/S by anaerobic microorganism populations that develop in the subsurface areas overlying petroleum reservoirs due to the concomitant supply of hydrocarbon nutrients, (4) the recent discovery of near-surface accumulations of pyrite and marcasite as the source of induction potential anomalies over certain fields, and (5) the strong adsorptive affinities of sulfur gases to solid surfaces, which enhance both the concentration and localization of such sulfur-expressed anomalies. During the past 3 years, numerous near-surface soil samples and well cuttings from the Utah-Wyoming Overthrust belt have been analyzed for adsorbed sulfur-gas content by two novel analytical techniques: thermal desorption/metal foil collection/flash desorption/sulfur-selective detection (TD/MFC/FD/SSD) and thermal desorption/cryogenic preconcentration/high-resolution-gas chromatography/optimized-flame photometry (TD/CP/HRGC/OFP).

  8. Production of low-sulfur binder pitch from high-sulfur Illinois coals. Technical report, December 1, 1994--February 28, 1995

    SciTech Connect (OSTI)

    Knight, R.A.

    1996-03-01

    The objective of this project is to produce electrode binder pitch with sulfur content below 0.6 wt% from high-sulfur Illinois coal mild gasification liquids. In previous ICCI projects at IGT, flash thermocracking (FTC) was used to successfully upgrade the properties of mild gasification pitch, yielding a suitable blending stock for use as a binder in the production of carbon electrodes for the aluminum industry. However, in pitches from high-sulfur (4%) Illinois coal, the pitch sulfur content is still unacceptably high at 2%. In this project, two approaches to sulfur reduction are being explored in conjunction with FTC: (1) the use of conventionally cleaned coal with low ({approximately}1%) sulfur as a mild gasification feedstock, and (2) direct biodesulfurization of the liquids prior to FTC. In Case 1, the crude pitch is being produced by mild gasification of IBC-109 coal in an existing IGT bench-scale reactor, followed by distillation to isolate the crude pitch. In Case 2, the crude pitch for biodesulfurization was obtained from Illinois No. 6 coal tests conducted in the IGT mild gasification PRU in 1990. Biodesulfurization is to be performed by contacting the pitch with Rhodococcus Rhodochrous IGTS8 biocatalyst. Following preparation of the crude pitches, pitch upgrading experiments are to be conducted in a continuous FTC reactor constructed in previous ICCI-sponsored studies. The finished pitch is then characterized for physical and chemical properties (density, softening point, QI, TI, coking value, and elemental composition), and compared to typical specifications for binder pitches.

  9. History of Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History of Air Conditioning History of Air Conditioning July 20, 2015 - 3:15pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs MORE ON AIR CONDITIONING Check out our Energy Saver 101 infographic to learn how air conditioners work. Go to Energy Saver for more tips and advice on home cooling. Stay up-to-date on how the Energy Department is working to improve air conditioning technology. We take the air conditioner for granted, but imagine what life would be

  10. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Diesel, Low-Sulfur Prices - Sales to End Users " ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","No. 2 Diesel, Low-Sulfur Prices - Sales to End Users ",9,"Monthly","6/2016","1/15/1994" ,"Release Date:","9/1/2016" ,"Next Release Date:","10/3/2016"

  11. Seal for sodium sulfur battery

    DOE Patents [OSTI]

    Topouzian, Armenag; Minck, Robert W.; Williams, William J.

    1980-01-01

    This invention is directed to a seal for a sodium sulfur battery in which the sealing is accomplished by a radial compression seal made on a ceramic component of the battery which separates an anode compartment from a cathode compartment of the battery.

  12. ESnet History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ESnet History About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net ESnet History View ESnet's 25-year anniversary timeline in PDF. »Download the PDF. (PDF | 500KB) 1976 - MFEnet provides data links

  13. Recovery of sulfur from native ores

    SciTech Connect (OSTI)

    Womack, J.T.; Wiewiorowski, T.K.; Astley, V.C.; Perez, J.W.; Headington, T.A.

    1992-03-17

    This patent describes a process for removing elemental sulfur from ores containing elemental sulfur. It comprises crushing a sulfur-containing ore to a coarse particle size wherein ore particles produced during crushing enable substantially all of the sulfur to be liberated during a heating step and to produce an ore gangue that is substantially not susceptible to flotation: forming an aqueous ore slurry containing about 50-80% by weight of solids from the crushed ore and adjusting the pH to at least a pH of about 8.0; heating the aqueous ore slurry formed in step (b) under elevated pressure to a temperature of about 240{degrees} - 315{degrees} F. for sufficient time to melt and liberate elemental sulfur contained in the ore to produce liberated molten sulfur and ore gangue, wherein the slurry is heated while agitating the slurry at sufficient velocity to substantially maintain the ore, ore gangue and liberated molten sulfur in suspension; cooling the heated slurry sufficiently to resolidify the liberated molten sulfur; conditioning the aqueous slurry of step (d) with a flotation aid; separating the condition aqueous slurry of ore gangue and resolidified sulfur in a flotation unit to produce a sulfur-rich flotation concentrate overstream; and recovering the sulfur-rich flotation concentrate and separating the sulfur therefrom.

  14. Production of low sulfur binder pitich from high-sulfur Illinois coals. Quarterly report, 1 March 1995--31 May 1995

    SciTech Connect (OSTI)

    Knight, R.A.

    1995-12-31

    The objective of this project is to produce electrode binder pitch with sulfur content below 0.6 wt% from high-sulfur Illinois coal mild gasification liquids. Previously, flash thermocracking (FTC) was used to successfully upgrade the properties of mild gasification pitch, yielding a suitable blending stock for use as a binder in the production of carbon electrodes for the aluminum industry. However, in pitches from high-sulfur (4%) Illinois coal, the pitch sulfur content (2%) was still higher than preferred. In this project two approaches to sulfur reduction are being explored in conjunction with FTC: (1) the use of a moderate-sulfur (1.2%) Illinois coal as mild gasification feedstock, and (2) direct biodesulfurization of the liquids from high-sulfur coal prior to FTC. In Case 1, the liquids are being produced by mild gasification of IBC-109 coal in a bench-scale fluidized-bed reactor, followed by distillation to isolate the crude pitch. In Case 2, biodesulfurization with Rhodococcus Rhodochrous IGTS8 biocatalyst is being performed on crude pitch obtained from Illinois No. 6 coal tests conducted in the IGT MILDGAS PRU in 1990. Following preparation of the crude pitches, pitch upgrading experiments are being conducted in a continuous FTC reactor constructed in previous ICCI-sponsored studies. This quarter, mild gasification of IBC-109 coal was completed, producing 450 g of coal liquids, which were then distilled to recover 329 g of Case 1 crude pitch. Next month, the pitch will be subjected to FTC treatment and evaluated. Biodesulfurization experiments were performed on Case 2 pitch dispersed in l-undecanol, resulting in sulfur reductions of 15.1 to 21.4%. This was marginally lower than the 24.8% desulfurization obtained in l-dodecanol, but separation of pitch from the dispersant was facilitated by the greater volatility of l-undecanol.

  15. Making History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    YGG 05-0181 Making History It's hard to imagine . . . . . . an entire city existing in secret. . . . 60,000 acres set aside for one, top-secret purpose. . . . a discovery so huge...

  16. History Gallery

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Manhattan Project. August 18, 2014 museum plan showing the history gallery Los Alamos, once the site of a boys' ranch school, became the focus of the secret project to develop a...

  17. ORISE: History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History The Oak Ridge Institute for Science and Education (ORISE) is a national leader in science education and research, with programs dating back to 1946 and having served as an...

  18. Workshop History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Workshop History The 2014 event is the seventh joint workshop held by the EFCOG ESH Electrical Safety subgroup. The first "joint" Electrical Safety Workshop was held in the summer...

  19. A History

    Broader source: Energy.gov (indexed) [DOE]

    of the United States Atomic Energy Commission Volume II 19471952 Morale Meld Richard G. Hewlett Francis Duncan 1972 U.S. Atomic Energy Commission CONTENTS FOREWORD BY THE ...

  20. Catalytic conversion of sulfur dioxide and trioxide

    SciTech Connect (OSTI)

    Solov'eva, E.L.; Shenfel'd, B.E.; Kuznetsova, S.M.; Khludenev, A.G.

    1987-11-10

    The reclamation and utilization of sulfur-containing wastes from the flue gas of fossil-fuel power plants and the subsequent reduction in sulfur emission is addressed in this paper. The authors approach this problem from the standpoint of the catalytic oxidation of sulfur dioxide on solid poison-resistant catalysts with subsequent sorption of the sulfur trioxide and its incorporation into the manufacture of sulfuric acid. The catalyst they propose is a polymetallic dust-like waste from the copper-smelting industry comprised mainly of iron and copper oxides. Experiments with this catalyst were carried out using multifactorial experiment planning.

  1. Beam History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17

  2. Beam History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Beam Status Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13

  3. Beam History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17

  4. Biogenic sulfur emissions in the SURE region

    SciTech Connect (OSTI)

    Adams, D.F.; Farwell, S.O.; Robinson, E.; Pack, M.R.

    1980-09-01

    The objective of this study was to estimate the magnitude of biogenic sulfur emissions from the northeastern United States - defined as the EPRI Sulfate Regional Experiment (SURE) study area. Initial laboratory efforts developed and validated a portable sulfur sampling system and a sensitive, gas chromatographic analytical detection system. Twenty-one separate sites were visited in 1977 to obtain a representative sulfur emission sampling of soil orders, suborders, and wetlands. The procedure determined the quantity of sulfur added to sulfur-free sweep air by the soil flux as the clean air was blown through the dynamic enclosure set over the selected sampling area. This study represents the first systematic sampling for biogenic sulfur over such a wide range of soils and such a large land area. The major impacts upon the measured sulfur flux were found to include soil orders, temperature, sunlight intensity, tidal effects along coastal areas. A mathematical model was developed for biogenic sulfur emissions which related these field variables to the mean seasonal and annual ambient temperatures regimes for each SURE grid and the percentage of each soil order within each grid. This model showed that at least 53,500 metric tons (MT) of biogenic sulfur are emitted from the SURE land surfaces and approximately 10,000 MT are emitted from the oceanic fraction of the SURE grids. This equates to a land sulfur flux of nearly 0.02 gram of sulfur per square meter per yr, or about 0.6% of the reported anthropogenic emissions withn the SURE study area. Based upon these data and the summertime Bermuda high clockwise circulation of maritime air across Florida and the Gulf Coast states northward through the SURE area, the total land biogenic sulfur emission contribution to the SURE area atmospheric sulfur burden might approach 1 to 2.5% of the anthropogenic.

  5. Reduction mechanism of sulfur in lithium-sulfur battery: From elemental sulfur to polysulfide

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zheng, Dong; Yang, Xuran; Zhang, Xiaoqing; Wang, Jiankun; Qu, Deyu; Qu, Deyang

    2015-10-30

    In this study, the polysulfide ions formed during the first reduction wave of sulfur in Li–S battery were determined through both in-situ and ex-situ derivatization of polysulfides. By comparing the cyclic voltammetric results with and without the derivatization reagent (methyl triflate) as well as the in-situ and ex-situ derivatization results under potentiostatic condition, in-situ derivatization was found to be more appropriate than its ex-situ counterpart, since subsequent fast chemical reactions between the polysulfides and sulfur may occur during the timeframe of ex-situ procedures. It was found that the major polysulfide ions formed at the first reduction wave of elemental sulfurmore » were the S42– and S52– species, while the widely accepted reduction products of S82– and S62– for the first reduction wave were in low abundance.« less

  6. Quantitative Chromatographic Determination of Dissolved Elemental Sulfur in the Non-aqueous Electrolyte for Lithium-Sulfur Batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zheng, Dong; Yang, Xiao-Qing; Zhang, Xuran; Li, Chao; McKinnon, Meaghan E.; Sadok, Rachel G.; Qu, Deyu; Yu, Xiqian; Lee, Hung-Sui; Qu, Deyang

    2014-12-02

    A fast and reliable analytical method is reported for the quantitative determination of dissolved elemental sulfur in non-aqueous electrolytes for Li-S batteries. By using high performance liquid chromatography with a UV detector, the solubility of S in 12 different pure solvents and in 22 different electrolytes was determined. It was found that the solubility of elemental sulfur is dependent on the Lewis basicity, the polarity of solvents and the salt concentration in the electrolytes. In addition, the S content in the electrolyte recovered from a discharged Li-S battery was successfully determined by the proposed HPLC/UV method. Thus, the feasibility ofmore » the method to the online analysis for a Li-S battery is demonstrated. Interestingly, the S was found super-saturated in the electrolyte recovered from a discharged Li-S cell.« less

  7. Quantitative Chromatographic Determination of Dissolved Elemental Sulfur in the Non-aqueous Electrolyte for Lithium-Sulfur Batteries

    SciTech Connect (OSTI)

    Zheng, Dong; Yang, Xiao-Qing; Zhang, Xuran; Li, Chao; McKinnon, Meaghan E.; Sadok, Rachel G.; Qu, Deyu; Yu, Xiqian; Lee, Hung-Sui; Qu, Deyang

    2014-12-02

    A fast and reliable analytical method is reported for the quantitative determination of dissolved elemental sulfur in non-aqueous electrolytes for Li-S batteries. By using high performance liquid chromatography with a UV detector, the solubility of S in 12 different pure solvents and in 22 different electrolytes was determined. It was found that the solubility of elemental sulfur is dependent on the Lewis basicity, the polarity of solvents and the salt concentration in the electrolytes. In addition, the S content in the electrolyte recovered from a discharged Li-S battery was successfully determined by the proposed HPLC/UV method. Thus, the feasibility of the method to the online analysis for a Li-S battery is demonstrated. Interestingly, the S was found super-saturated in the electrolyte recovered from a discharged Li-S cell.

  8. Reduction mechanism of sulfur in lithium-sulfur battery: From elemental sulfur to polysulfide

    SciTech Connect (OSTI)

    Zheng, Dong; Yang, Xuran; Zhang, Xiaoqing; Wang, Jiankun; Qu, Deyu; Qu, Deyang

    2015-10-30

    In this study, the polysulfide ions formed during the first reduction wave of sulfur in Li–S battery were determined through both in-situ and ex-situ derivatization of polysulfides. By comparing the cyclic voltammetric results with and without the derivatization reagent (methyl triflate) as well as the in-situ and ex-situ derivatization results under potentiostatic condition, in-situ derivatization was found to be more appropriate than its ex-situ counterpart, since subsequent fast chemical reactions between the polysulfides and sulfur may occur during the timeframe of ex-situ procedures. It was found that the major polysulfide ions formed at the first reduction wave of elemental sulfur were the S42– and S52– species, while the widely accepted reduction products of S82– and S62– for the first reduction wave were in low abundance.

  9. Emission of biogenic sulfur gases from Chinese paddy soil and rice plant

    SciTech Connect (OSTI)

    Zhen Yang [Nanjing Univ. of Science and Technology (China); Li Kong [Nanjing Agricultural Univ. (China)

    1996-12-31

    Biogenic sulfur gases emitted from terrestrial ecosystem may play in important role in global sulfur cycle and have a profound influence on global climate change. But very little is known concerning emissions from paddy soil and rice plant, which are abundant in many parts of the world. As a big agricultural country, this is about 33 million hectare rice planted in China. With laboratory incubation and closed chamber method in the field, the biogenic sulfur gases emitted from Chinese paddy soil and rice plant were detected in both conditions: hydrogen sulfide (H{sub 2}S), carbonyl sulfide (COS), methyl mercaptan (MSH), carbon disulfide (CS{sub 2}), dimethyl sulfide (DMS) and dimethyl disulfide (DMDS). Among which, DMS was predominant part of sulfur emission. Emission of sulfur gases from different paddy field exhibit high spatial and temporal variability. The application of fertilizer and organic manure, total sulfur content in wetland, air temperature were positively correlated to the emission of volatile sulfur gases from paddy soil. Diurnal and seasonal variation of total volatile sulfur gases and DMS indicate that their emissions were greatly influenced by the activity of the rice plant. The annual emission of total volatile sulfur gases, from Nanjing paddy field is ranged from 4.0 to 9.5 mg S m{sup -2}yr{sup -1}, that of DMS is ranged from 3.1 to 6.5 mg S m{sup -2}yr{sup -1}. Rice plant could absorb COS gas, that may be one of the sinks of COS.

  10. HYDROCARBON AND SULFUR SENSORS FOR SOFC SYSTEMS

    SciTech Connect (OSTI)

    A.M. Azad; Chris Holt; Todd Lesousky; Scott Swartz

    2003-11-01

    The following report summarizes work conducted during the Phase I program Hydrocarbon and Sulfur Sensors for SOFC Systems under contract No. DE-FC26-02NT41576. For the SOFC application, sensors are required to monitor hydrocarbons and sulfur in order to increase the operation life of SOFC components. This report discusses the development of two such sensors, one based on thick film approach for sulfur monitoring and the second galvanic based for hydrocarbon monitoring.

  11. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"10302015 12:46:21 PM" "Back to Contents","Data 1: Rhode Island Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)"...

  12. Sulfur determination in blood from inhabitants of Brazil using neutron activation analysis

    SciTech Connect (OSTI)

    Oliveira, Laura C.; Zamboni, Cibele B.

    2013-05-06

    In this study the NAA technique was applied to analyze sulfur in blood from inhabitants of Brazil for the proposition of an indicative interval. The measurements were performed considering lifestyle factors (non-smokers, non-drinkers and no history of toxicological exposure) of Brazilian inhabitants. The influence of gender was also investigated considering several age ranges (18-29, 30-39, 40-49, >50 years). These data are useful in clinical investigations, to identify or prevent diseases caused by inadequate sulfur ingestion and for nutritional evaluation of Brazilian population.

  13. Sulfur-carbon nanocomposites and their application as cathode materials in lithium-sulfur batteries

    SciTech Connect (OSTI)

    Liang, Chengdu; Dudney, Nancy J; Howe, Jane Y

    2015-05-05

    The invention is directed in a first aspect to a sulfur-carbon composite material comprising: (i) a bimodal porous carbon component containing therein a first mode of pores which are mesopores, and a second mode of pores which are micropores; and (ii) elemental sulfur contained in at least a portion of said micropores. The invention is also directed to the aforesaid sulfur-carbon composite as a layer on a current collector material; a lithium ion battery containing the sulfur-carbon composite in a cathode therein; as well as a method for preparing the sulfur-composite material.

  14. Stabilized sulfur binding using activated fillers

    DOE Patents [OSTI]

    Kalb, Paul D.; Vagin, Vyacheslav P.; Vagin, Sergey P.

    2015-07-21

    A method of making a stable, sulfur binding composite comprising impregnating a solid aggregate with an organic modifier comprising unsaturated hydrocarbons with at least one double or triple covalent bond between adjacent carbon atoms to create a modifier-impregnated aggregate; heating and drying the modifier-impregnated aggregate to activate the surface of the modifier-impregnated aggregate for reaction with sulfur.

  15. Sulfur oxide adsorbents and emissions control

    DOE Patents [OSTI]

    Li, Liyu; King, David L.

    2006-12-26

    High capacity sulfur oxide absorbents utilizing manganese-based octahedral molecular sieve (Mn--OMS) materials are disclosed. An emissions reduction system for a combustion exhaust includes a scrubber 24 containing these high capacity sulfur oxide absorbents located upstream from a NOX filter 26 or particulate trap.

  16. Method of removal of sulfur from coal and petroleum products

    DOE Patents [OSTI]

    Verkade, John G.; Mohan, Thyagarajan; Angelici, Robert J.

    1995-01-01

    A method for the removal of sulfur from sulfur-bearing materials such as coal and petroleum products using organophosphine and organophosphite compounds is provided.

  17. Baseload CSP Generation Integrated with Sulfur-Based Thermochemical...

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

    Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage - FY13 Q1 Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage - FY13 ...

  18. Additives and Cathode Materials for High-Energy Lithium Sulfur...

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

    Additives and Cathode Materials for High-Energy Lithium Sulfur Batteries Additives and Cathode Materials for High-Energy Lithium Sulfur Batteries 2013 DOE Hydrogen and Fuel Cells...

  19. Scientists Probe Lithium-Sulfur Batteries in Real Time - Joint...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7, 2012, Videos Scientists Probe Lithium-Sulfur Batteries in Real Time Lithium-sulfur batteries are a promising technology that could some day power electric vehicles. Scientists ...

  20. Understanding Lithium-Sulfur Batteries at the Molecular Level...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    June 17, 2015, Accomplishments Understanding Lithium-Sulfur Batteries at the Molecular Level Conceived some 40 years ago, the lithium-sulfur battery can store, in theory, ...

  1. Sulfur Poisoning of Metal Membranes for Hydrogen Separation ...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Sulfur Poisoning of Metal Membranes for Hydrogen Separation Citation Details In-Document Search Title: Sulfur Poisoning of Metal Membranes for Hydrogen Separation ...

  2. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Hampshire Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic ...

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    Data for" ,"Data 1","Kansas Natural Gas in Underground Storage ... 6:59:57 AM" "Back to Contents","Data 1: Kansas Natural Gas in Underground Storage ...

  4. Workbook Contents

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    Data for" ,"Data 1","Nevada Nonhydrocarbon Gases Removed from Natural ... 1:08:57 AM" "Back to Contents","Data 1: Nevada Nonhydrocarbon Gases Removed from Natural ...

  5. Workbook Contents

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    Consumed" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","District of Columbia Heat Content ...

  6. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click ... Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","32016" ,"Release ...

  7. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Data for" ,"Data 1","Minnesota Natural Gas Injections into Underground ... 7:00:26 AM" "Back to Contents","Data 1: Minnesota Natural Gas Injections into Underground ...

  8. Influence of sulfur and welding conditions on penetration in thin strip stainless steel

    SciTech Connect (OSTI)

    Scheller, P.R. ); Brooks, R.F.; Mills, K.C. . Division of Materials Metrology)

    1995-02-01

    Welding trials and surface tension measurements have been carried out on 304 stainless steels with sulfur (S) contents between 20 and 100 ppm. Surface tension measurements, determined by the levitated drop method, indicated that the temperature coefficient of surface tension (d[gamma]/dT) changed from negative to positive values at S contents exceeding approximately 50 ppm. Strips with a thickness of approximately 1 mm were GTA welded on both single-electrode, small-scale and multi-electrode industrial-scale units. Welding speeds of 1 to 2 m min[sup [minus]1] were used on the small-scale unit and up to 5 m min[sup [minus]1] on the industrial unit. The weld penetration was found to increase, for both full and partial penetration welds, with (1) increasing sulfur contents; and (2) increasing linear energy. On the small scale-unit markedly higher penetration was observed in heats with S contents > 60 ppm. But the influence of S contents was only of minor importance for welds obtained on the industrial unit. It was found that the similar weld geometry could be obtained for both low ([<=] 60 ppm) and high (> 60 ppm) sulfur contents by careful adjustment of welding parameters. The observed changes in weld geometry are consistent with the proposition that the fluid flow in the weld pool is dominated by thermo-capillary (Marangoni) forces during the GTA welding of thin strips.

  9. Newmark-Hall synthetic history development

    SciTech Connect (OSTI)

    Aramayo, G.A.

    1990-11-01

    The methodology used to develop synthetic acceleration time histories with spectral content that envelopes the Newmark-Hall spectra is described. Six acceleration time histories are developed for two conditions of foundation and 3 critical damping factors. The target spectra corresponds to the mediam centered probability level.

  10. Catalyst for elemental sulfur recovery process

    DOE Patents [OSTI]

    Flytzani-Stephanopoulos, M.; Liu, W.

    1995-01-24

    A catalytic reduction process is described for the direct recovery of elemental sulfur from various SO[sub 2]-containing industrial gas streams. The catalytic process provides high activity and selectivity, as well as stability in the reaction atmosphere, for the reduction of SO[sub 2] to elemental sulfur product with carbon monoxide or other reducing gases. The reaction of sulfur dioxide and reducing gas takes place over a metal oxide composite catalyst having one of the following empirical formulas: [(FO[sub 2])[sub 1[minus]n](RO)[sub n

  11. A new, safer method of sulfur degassing

    SciTech Connect (OSTI)

    Schico, C.M.; Clem, K.R.; Hartley, D.; Watson, E.A.

    1985-10-01

    The Exxon system for degassing liquid sulfur is presented, and it can reduce total H2S in liquid sulfur to levels as low as 10-15 wppm under the commercial conditions tested. Because Exxon found commercially available mechanical degassing systems to be inadequate, the Claus plant initiated an RandD program to develop the new degassing process. Hydrogen sulfide and hydrogen polysulfide are inherent to the Claus process. The major concerns associated with this H2S in the Claus liquid sulfur include: toxic levels of H2S are possible while loading/unloading liquid sulfur; the H2S lower explosive limit in air can be exceeded in unvented pit/tank vapor space; nuisance odors/environmental concerns; and potential government regulations/ customer restrictions. Results are presented in this article of successful commercial tests using the process at five sites.

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  13. Workbook Contents

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    Data for" ,"Data 1","Kansas Natural Gas Gross Withdrawals from Oil ... 7:01:28 AM" "Back to Contents","Data 1: Kansas Natural Gas Gross Withdrawals from Oil ...

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    Data for" ,"Data 1","Kansas Natural Gas Gross Withdrawals from Gas ... 7:01:18 AM" "Back to Contents","Data 1: Kansas Natural Gas Gross Withdrawals from Gas ...

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    AM" "Back to Contents","Data 1: Price of Liquefied U.S. Natural Gas Re-Exports to Brazil (Dollars per Thousand Cubic Feet)" "Sourcekey","NGMEPG0ERENUS-NBRDMCF"...

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    Data for" ,"Data 1","Nevada Natural Gas Gross Withdrawals from Gas ... 1:07:58 AM" "Back to Contents","Data 1: Nevada Natural Gas Gross Withdrawals from Gas ...

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    Data for" ,"Data 1","Nevada Natural Gas Withdrawals from Oil Wells ... 1:08:20 AM" "Back to Contents","Data 1: Nevada Natural Gas Withdrawals from Oil Wells ...

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    Data for" ,"Data 1","Nevada Natural Gas Deliveries to Electric Power ... 1:03:28 AM" "Back to Contents","Data 1: Nevada Natural Gas Deliveries to Electric Power ...

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    Data for" ,"Data 1","Nevada Price of Natural Gas Sold to Commercial ... 1:00:55 AM" "Back to Contents","Data 1: Nevada Price of Natural Gas Sold to Commercial ...

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    Data for" ,"Data 1","Motor Gasoline Sales to End Users Prices ... 8:28:36 AM" "Back to Contents","Data 1: Motor Gasoline Sales to End Users Prices " ...

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    ...,"Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov" ,,"(202) 586-8800",,,"4292016 6:42:48 AM" "Back to Contents","Data 1: U.S. LNG Imports from Indonesia ...

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    Data for" ,"Data 1","Residual Fuel Oil Prices, Average - Sales to End Users ... AM" "Back to Contents","Data 1: Residual Fuel Oil Prices, Average - Sales to End Users " ...

  5. Workbook Contents

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    AM" "Back to Contents","Data 1: Price of Liquefied U.S. Natural Gas Re-Exports to Spain (Dollars per Thousand Cubic Feet)" "Sourcekey","NGMEPG0ERENUS-NSPDMCF"...

  6. Workbook Contents

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    "Back to Contents","Data 1: East Coast (PADD 1) Net Receipts of Crude Oil and Petroleum Products by Pipeline, Tanker, Barge and Rail" "Sourcekey","MTTNRP11","MCRNRP11","MPEMNP11...

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    "Back to Contents","Data 1: Price of Liquefied U.S. Natural Gas Exports by Vessel to Japan (Dollars per Thousand Cubic Feet)" "Sourcekey","NGMEPG0EVENUS-NJADMCF"...

  8. Workbook Contents

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    AM" "Back to Contents","Data 1: Liquefied U.S. Natural Gas Exports by Vessel to Japan (Million Cubic Feet)" "Sourcekey","NGMEPG0EVENUS-NJAMMCF" "Date","Liquefied U.S....

  9. Workbook Contents

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    AM" "Back to Contents","Data 1: Price of Liquefied U.S. Natural Gas Re-Exports to Japan (Dollars per Thousand Cubic Feet)" "Sourcekey","NGMEPG0ERENUS-NJADMCF"...

  10. Workbook Contents

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    AM" "Back to Contents","Data 1: Price of Liquefied U.S. Natural Gas Re-Exports to Chile (Dollars per Thousand Cubic Feet)" "Sourcekey","NGMEPG0ERENUS-NCIDMCF"...

  11. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Data for" ,"Data 1","Crude Oil (Light-Sweet, Cushing, Oklahoma)",4,"Daily","726... to Contents","Data 1: Crude Oil (Light-Sweet, Cushing, Oklahoma)" "Sourcekey","RCLC1","...

  12. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Data for" ,"Data 1","Minnesota Price of Natural Gas Sold to Commercial ... 6:57:30 AM" "Back to Contents","Data 1: Minnesota Price of Natural Gas Sold to Commercial ...

  13. Definition of Non-Conventional Sulfur Utilization in Western Kazakhstan for Sulfur Concrete (Phase 1)

    SciTech Connect (OSTI)

    Kalb, Paul

    2007-05-31

    Battelle received a contract from Agip-KCO, on behalf a consortium of international oil and gas companies with exploration rights in the North Caspian Sea, Kazakhstan. The objective of the work was to identify and help develop new techniques for sulfur concrete products from waste, by-product sulfur that will be generated in large quantitites as drilling operations begin in the near future. BNL has significant expertise in the development and use of sulfur concrete products and has direct experience collaborating with the Russian and Kazakh partners that participated. Feasibility testing was successfully conducted for a new process to produce cost-effective sulfur polymer cement that has broad commerical applications.

  14. Copper mercaptides as sulfur dioxide indicators

    DOE Patents [OSTI]

    Eller, Phillip G.; Kubas, Gregory J.

    1979-01-01

    Organophosphine copper(I) mercaptide complexes are useful as convenient and semiquantitative visual sulfur dioxide gas indicators. The air-stable complexes form 1:1 adducts in the presence of low concentrations of sulfur dioxide gas, with an associated color change from nearly colorless to yellow-orange. The mercaptides are made by mixing stoichiometric amounts of the appropriate copper(I) mercaptide and phosphine in an inert organic solvent.

  15. Process for removing sulfur from coal

    DOE Patents [OSTI]

    Aida, T.; Squires, T.G.; Venier, C.G.

    1983-08-11

    A process is disclosed for the removal of divalent organic and inorganic sulfur compounds from coal and other carbonaceous material. A slurry of pulverized carbonaceous material is contacted with an electrophilic oxidant which selectively oxidizes the divalent organic and inorganic compounds to trivalent and tetravalent compounds. The carbonaceous material is then contacted with a molten caustic which dissolves the oxidized sulfur compounds away from the hydrocarbon matrix.

  16. Process for removing sulfur from coal

    DOE Patents [OSTI]

    Aida, Tetsuo; Squires, Thomas G.; Venier, Clifford G.

    1985-02-05

    A process for the removal of divalent organic and inorganic sulfur compounds from coal and other carbonaceous material. A slurry of pulverized carbonaceous material is contacted with an electrophilic oxidant which selectively oxidizes the divalent organic and inorganic compounds to trivalent and tetravalent compounds. The carbonaceous material is then contacted with a molten caustic which dissolves the oxidized sulfur compounds away from the hydrocarbon matrix.

  17. Spray drying for high-sulfur coal

    SciTech Connect (OSTI)

    Rhudy, R.

    1988-09-01

    Recent pilot plant tests indicate that spray drying, now used to control SO/sub 2/ emissions from low-sulfur coal, can also be effective for high-sulfur coal. Spray drying coupled with baghouse particulate removal is the most effective configuration tested to date, removing over 90% of SO/sub 2/ while easily meeting New Source Performance Standards for particulate emissions. 2 figures, 1 table.

  18. World copper smelter sulfur balance-1988

    SciTech Connect (OSTI)

    Towle, S.W. )

    1993-01-01

    In 1989, the US Bureau of Mines initiated a contract to gather engineering, operating, and environmental cost data for 1988 for 30 major foreign primary copper smelters in market economy countries. Data were collected for 29 of the designated smelters together with information on applicable environmental regulations. Materials balance data obtained were used with available data for the eight US smelters to determine the approximate extent of copper smelter sulfur emission control in 1988. A broad characterization of the status of sulfur emission control regulation was made. The 37 US and foreign smelters represented roughly 73.2% of world and 89.3% of market economy primary copper production in 1988. The 29 non-US smelters attained 55.3% control of their input sulfur in 1988. Combined with the 90.4% control of US smelters, an aggregate 63.4% sulfur control existed. Roughly 1,951,100 mt of sulfur was emitted from the 37 market economy smelters in 1988. Identifiable SO[sub 2] control regulations covered 72.4% of the 29 foreign smelters, representing 65.5% of smelting capacity. Including US smelters, 78.4% of the major market economy smelters were regulated, representing 73.1% of smelting capacity. Significant changes since 1988 that may increase sulfur emission control are noted.

  19. History of Hydropower | Department of Energy

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

    History of Hydropower History of Hydropower

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  1. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Michigan Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  19. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Minnesota Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  20. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Missouri Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  1. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Mississippi Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  2. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Montana Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  3. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","North Carolina Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  4. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","North Dakota Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  5. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Nebraska Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  6. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Jersey Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  7. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  8. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Nevada Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  9. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New York Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  10. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  11. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  12. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Oregon Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  13. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  14. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Rhode Island Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  15. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","South Carolina Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  16. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","South Dakota Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  17. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  18. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  19. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Utah Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  20. Workbook Contents

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    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Virginia Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  1. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Vermont Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  2. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Washington Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  3. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Wisconsin Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  4. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","West Virginia Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  5. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic Foot)",1,"Monthly","6/2016" ,"Release Date:","08/31/2016" ,"Next Release

  6. Development of a new FGD process that converts sulfur dioxide to salable ammonium phosphate fertilizer

    SciTech Connect (OSTI)

    Ji-lu Chen

    1993-12-31

    Rich mineral resources have enabled Chinese coal output and energy consumption to rank second and third in the world, respectively. In 1992, up to 70 percent of the country`s electric power was generated by the combustion of some 300 million tons of coal. Although the average sulfur content level in Chinese coals is only about 0.8 percent, the share of high- sulfur coals with 2 percent or more sulfur content is as high as 18 percent. As a result, air pollution accompanied by acid rain now occurs over most of the country, especially in southwestern China. Currently, the area comprising Guangdong, Guangxi, the Sichuan Basin, and the greater part of Gueizhou, where the sulfur content in coal is between 2 and 7 percent and the average pH values of rain water are between 4 and 5 per annum, has become one of the three biggest acid rain-affected areas in the world. In 1992, the national installed coal-fired electricity generation capacity exceeded 100,000 MWe. By the year 2000, it is expected to reach as much as 200,000 MWe, according to a new scheduled program. Environmental pollution caused by large-scale coal combustion is a very important issue that needs to be considered in the implementation of the program. To ensure that the effects of coal-fired power generation on the environment can be properly controlled in the near future, TPRI (Thermal Power Research Institute), the sole thermal power engineering research institution within the Ministry of Electric Power Industry (MOEPI), has conducted a long-term research program to develop sulfur emission control technologies suitable to the special conditions prevalent in China since the early 1970s. The details are summarized. The objective of this chapter is to describe the fundamental concept and major pilot test results and present an economic evaluation of a new process combining flue gas desulfurization (FGD) and ammonium phosphate fertilizer production.

  7. Sulfur capture by oil shale ashes under atmospheric and pressurized FBC conditions

    SciTech Connect (OSTI)

    Yrjas, K.P.; Hupa, M. [Aabo Akademi Univ., Turku (Finland). Dept. of Chemical Engineering; Kuelaots, I.; Ots, A. [Tallinn Technical Univ. (Estonia). Thermal Engineering Dept.

    1995-12-31

    When oil shale contains large quantities of limestone, a significant auto-absorption of sulfur is possible under suitable conditions. The sulfur capture by oil shale ashes has been studied using a pressurized thermogravimetric apparatus. The chosen experimental conditions were typical for atmospheric and pressurized fluidized bed combustion. The Ca/S molar ratios in the two oil shales studied were 8 (Estonian) and 10 (Israeli). The samples were first burned in a gas atmosphere containing O{sub 2} and N{sub 2} (and CO{sub 2} if pressurized). After the combustion step, SO{sub 2} was added and sulfation started. The results with the oil shales were compared to those obtained with an oil shale cyclone ash from the Narva power plant in Estonia. In general, the results from the sulfur capture experiments under both atmospheric and pressurized conditions showed that the oil shale cannot only capture its own sulfur but also significant amounts of additional sulfur of another fuel if the fuels are mixed together. For example from the runs at atmospheric pressure, the conversion of CaO to CaSO{sub 4} was about 70% for Israeli oil shale and about 55% for Estonian oil shale (850 C). For the cyclone ash the corresponding conversion was about 20%. In comparison it could be mentioned that under the same conditions the conversions of natural limestones are about 30%. The reason the cyclone ash was a poor sulfur absorbent was probably due to its temperature history. In Narva the oil shale was burned at a significantly higher temperature (1,400 C) than was used in the experiments (750 C and 850 C). This caused the ash to sinter and the reactive surface area of the cyclone ash was therefore decreased.

  8. Direct Observation of Sulfur Radicals as Reaction Media in Lithium Sulfur Batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wang, Qiang; Zheng, Jianming; Walter, Eric; Pan, Huilin; Lv, Dongping; Zuo, Pengjian; Chen, Honghao; Deng, Z. D.; Liaw, Bor Y.; Yu, Xiqian; et al

    2015-01-09

    Lithium sulfur (Li-S) battery has been regaining tremendous interest in recent years because of its attractive attributes such as high gravimetric energy, low cost and environmental benignity. However, it is still not conclusively known how polysulfide ring/chain participates in the whole cycling and whether the discharge and charge processes follow the same pathway. Herein, we demonstrate the direct observation of sulfur radicals by using in situ electron paramagnetic resonance (EPR) technique. Based on the concentration changes of sulfur radicals at different potentials and the electrochemical characteristics of the cell, it is revealed that the chemical and electrochemical reactions in Li-Smore » cell are driving each other to proceed through sulfur radicals, leading to two completely different reaction pathways during discharge and charge. The proposed radical mechanism may provide new perspectives to investigate the interactions between sulfur species and the electrolyte, inspiring novel strategies to develop Li-S battery technology.« less

  9. Direct Observation of Sulfur Radicals as Reaction Media in Lithium Sulfur Batteries

    SciTech Connect (OSTI)

    Wang, Qiang; Zheng, Jianming; Walter, Eric; Pan, Huilin; Lv, Dongping; Zuo, Pengjian; Chen, Honghao; Deng, Z. D.; Liaw, Bor Y.; Yu, Xiqian; Yang, Xiao-Qing; Zhang, Ji-Guang; Liu, Jun; Xiao, Jie

    2015-01-09

    Lithium sulfur (Li-S) battery has been regaining tremendous interest in recent years because of its attractive attributes such as high gravimetric energy, low cost and environmental benignity. However, it is still not conclusively known how polysulfide ring/chain participates in the whole cycling and whether the discharge and charge processes follow the same pathway. Herein, we demonstrate the direct observation of sulfur radicals by using in situ electron paramagnetic resonance (EPR) technique. Based on the concentration changes of sulfur radicals at different potentials and the electrochemical characteristics of the cell, it is revealed that the chemical and electrochemical reactions in Li-S cell are driving each other to proceed through sulfur radicals, leading to two completely different reaction pathways during discharge and charge. The proposed radical mechanism may provide new perspectives to investigate the interactions between sulfur species and the electrolyte, inspiring novel strategies to develop Li-S battery technology.

  10. Electrostatic self-assembly of graphene oxide wrapped sulfur particles for lithium–sulfur batteries

    SciTech Connect (OSTI)

    Wu, Haiwei; Huang, Ying Zong, Meng; Ding, Xiao; Ding, Juan; Sun, Xu

    2015-04-15

    Highlights: • Researched graphene oxide wrapped sulfur particles for lithium–sulfur batteries. • New approach for core–shell GO/S composites by electrostatic self-assembly method. • Both core–shell structure and the GO support help to retard the diffusion of polysulfides during the electrochemical cycling process of GO/S cathode. - Abstract: A novel graphene oxide (GO)/sulfur (S) composite is developed by electrostatic self-assembly method. Remarkably, the core–shell structure of the composite and the GO support helps to retard the diffusion of polysulfides during the electrochemical cycling process. The GO/sulfur cathode presents enhanced cycling ability. Specific discharge capacities up to 494.7 mAh g{sup −1} over 200 cycles at 0.1 C is achieved with enhanced columbic efficiency around 95%, representing a good cathode material for lithium–sulfur batteries.

  11. Direct Observation of Sulfur Radicals as Reaction Media in lithium Sulfur Batteries

    SciTech Connect (OSTI)

    Wang, Qiang; Zheng, Jianming; Walter, Eric D.; Pan, Huilin; Lu, Dongping; Zuo, Pengjian; Chen, Honghao; Deng, Zhiqun; Liaw, Bor Yann; Yu, Xiqian; Yang, Xiaoning; Zhang, Jiguang; Liu, Jun; Xiao, Jie

    2014-12-09

    Lithium sulfur (Li-S) battery has been regaining tremendous interest in recent years because of its attractive attributes such as high gravimetric energy, low cost and environmental benignity. However, it is still not conclusively known how polysulfide ring/chain participates in the whole cycling and whether the discharge and charge process follow the same pathway. Herein, we demonstrate the direct observation of sulfur radicals by using in situ electron paramagnetic resonance (EPR) technique. Based on the concentration changes of sulfur radicals at different potentials, it is revealed that the chemical and electrochemical reactions in Li-S cell are driven each other to proceed through sulfur radicals, leading to two completely different reaction pathways during discharge and charge. The proposed radical mechanism may provide new insights to investigate the interactions between sulfur species and the electrolyte, inspiring novel strategies to develop Li-S battery technology.

  12. Workbook Contents

    U.S. Energy Information Administration (EIA) Indexed Site

    Contents","Data 1: U.S., PAD Districts, and States" "Sourcekey","8NA8O0NUSC","8NA8O0R10C","8NA8O0SDEC","8NA8O0SFLC","8NA8O0SGAC","8NA8O0SMDC","8NA8O0SN...

  13. Carbon/Sulfur Nanocomposites and Additives for High-Energy Lithium...

    Broader source: Energy.gov (indexed) [DOE]

    Additives and Cathode Materials for High-Energy Lithium Sulfur Batteries CarbonSulfur Nanocomposites and Additives for High-Energy Lithium Sulfur Batteries Vehicle Technologies ...

  14. Carbon/Sulfur Nanocomposites and Additives for High-Energy Lithium...

    Broader source: Energy.gov (indexed) [DOE]

    CarbonSulfur Nanocomposites and Additives for High-Energy Lithium Sulfur Batteries Additives and Cathode Materials for High-Energy Lithium Sulfur Batteries Protection of Li Anodes ...

  15. National Women's History Month

    Broader source: Energy.gov [DOE]

    NATIONAL WOMEN’S HISTORY MONTH is an annual declared month that highlights the contributions of women to events in history and contemporary society.

  16. History of ultrahigh carbon steels

    SciTech Connect (OSTI)

    Wadsworth, J.; Sherby, O.D.

    1997-06-20

    The history and development of ultrahigh carbon steels (i.e., steels containing between 1 and 2.l percent C and now known as UHCS) are described. The early use of steel compositions containing carbon contents above the eutectoid level is found in ancient weapons from around the world. For example, both Damascus and Japanese sword steels are hypereutectoid steels. Their manufacture and processing is of interest in understanding the role of carbon content in the development of modern steels. Although sporadic examples of UHCS compositions are found in steels examined in the early part of this century, it was not until the mid-1970s that the modern study began. This study had its origin in the development of superplastic behavior in steels and the recognition that increasing the carbon content was of importance in developing that property. The compositions that were optimal for superplasticity involved the development of steels that contained higher carbon contents than conventional modern steels. It was discovered, however, that the room temperature properties of these compositions were of interest in their own right. Following this discovery, a period of intense work began on understanding their manufacture, processing, and properties for both superplastic forming and room temperature applications. The development of superplastic cast irons and iron carbides, as well as those of laminated composites containing UHCS, was an important part of this history.

  17. Method of making a sodium sulfur battery

    DOE Patents [OSTI]

    Elkins, P. E.

    1981-09-22

    A method of making a portion of a sodium sulfur battery is disclosed. The battery portion made is a portion of the container which defines the volume for the cathodic reactant materials which are sulfur and sodium polysulfide materials. The container portion is defined by an outer metal casing with a graphite liner contained therein, the graphite liner having a coating on its internal diameter for sealing off the porosity thereof. The steel outer container and graphite pipe are united by a method which insures that at the operating temperature of the battery, relatively low electrical resistance exists between the two materials because they are in intimate contact with one another. 3 figs.

  18. Method of making a sodium sulfur battery

    DOE Patents [OSTI]

    Elkins, Perry E.

    1981-01-01

    A method of making a portion of a sodium sulfur battery is disclosed. The battery portion made is a portion of the container which defines the volume for the cathodic reactant materials which are sulfur and sodium polysulfide materials. The container portion is defined by an outer metal casing with a graphite liner contained therein, the graphite liner having a coating on its internal diameter for sealing off the porosity thereof. The steel outer container and graphite pipe are united by a method which insures that at the operating temperature of the battery, relatively low electrical resistance exists between the two materials because they are in intimate contact with one another.

  19. Women's History Month | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Women's History Month

  20. Effect of Sulfur on Solid Oxide Fuel Cell (SOFC) Performance...

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

    Effect of Sulfur on SOFC Performance Using Diesel Reformate R. Kerr March 6-7, 2014 Workshop on Gas Cleanup for Fuel Cell Applications, ANL, March 6-7, 2014 Sulfur Poisoning Effect ...

  1. EPA Diesel Rule and the Sulfur Effects (DECSE) Project

    SciTech Connect (OSTI)

    2009-05-08

    The VT program collaborated with industry stakeholders and the EPA (in an effort initiated in 1998 called Diesel Emission Control – Sulfur Effects study, otherwise known as DECSE) to quantify the effects of fuel sulfur on emission control technologies.

  2. Sandia National Laboratories: History: History Reports

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Facebook Twitter YouTube Flickr RSS About History Reports Building a Nuclear Ordnance Engineering Lab (slides from presentation to NSF Short Course "The Birthplace and Early...

  3. Sulfuric acid thermoelectrochemical system and method

    DOE Patents [OSTI]

    Ludwig, Frank A.

    1989-01-01

    A thermoelectrochemical system in which an electrical current is generated between a cathode immersed in a concentrated sulfuric acid solution and an anode immersed in an aqueous buffer solution of sodium bisulfate and sodium sulfate. Reactants consumed at the electrodes during the electrochemical reaction are thermochemically regenerated and recycled to the electrodes to provide continuous operation of the system.

  4. Anodes for Rechargeable Lithium-Sulfur Batteries

    SciTech Connect (OSTI)

    Cao, Ruiguo; Xu, Wu; Lu, Dongping; Xiao, Jie; Zhang, Jiguang

    2015-04-10

    In this work, we will review the recent developments on the protection of Li metal anode in Li-S batteries. Various strategies used to minimize the corrosion of Li anode and reducing its impedance increase will be analyzed. Other potential anodes used in sulfur based rechargeable batteries will also be discussed.

  5. Process for removing sulfur from sulfur-containing gases: high calcium fly-ash

    DOE Patents [OSTI]

    Rochelle, Gary T.; Chang, John C. S.

    1991-01-01

    The present disclosure relates to improved processes for treating hot sulfur-containing flue gas to remove sulfur therefrom. Processes in accordance with the present invention include preparing an aqueous slurry composed of a calcium alkali source and a source of reactive silica and/or alumina, heating the slurry to above-ambient temperatures for a period of time in order to facilitate the formation of sulfur-absorbing calcium silicates or aluminates, and treating the gas with the heat-treated slurry components. Examples disclosed herein demonstrate the utility of these processes in achieving improved sulfur-absorbing capabilities. Additionally, disclosure is provided which illustrates preferred configurations for employing the present processes both as a dry sorbent injection and for use in conjunction with a spray dryer and/or bagfilter. Retrofit application to existing systems is also addressed.

  6. Tailoring Pore Size of Nitrogen-Doped Hollow Carbon Nanospheres for Confi ning Sulfur in LithiumSulfur Batteries

    SciTech Connect (OSTI)

    Zhou, Weidong; Wang, Chong M.; Zhang, Quiglin; Abruna, Hector D.; He, Yang; Wang, Jiangwei; Mao, Scott X.; Xiao, Xingcheng

    2015-08-19

    Three types of nitrogen-doped hollow carbon spheres with different pore sized porous shells are prepared to investigate the performance of sulfur confinement. The reason that why no sulfur is observed in previous research is determined and it is successfully demonstrated that the sulfur/polysulfide will overflow the porous carbon during the lithiation process.

  7. CATALYST EVALUATION FOR A SULFUR DIOXIDE-DEPOLARIZED ELECTROLYZER

    SciTech Connect (OSTI)

    Hobbs, D; Hector Colon-Mercado, H

    2007-01-31

    Thermochemical processes are being developed to provide global-scale quantities of hydrogen. A variant on sulfur-based thermochemical cycles is the Hybrid Sulfur (HyS) Process which uses a sulfur dioxide depolarized electrolyzer (SDE) to produce the hydrogen. Testing examined the activity and stability of platinum and palladium as the electrocatalyst for the SDE in sulfuric acid solutions. Cyclic and linear sweep voltammetry revealed that platinum provided better catalytic activity with much lower potentials and higher currents than palladium. Testing also showed that the catalyst activity is strongly influenced by the concentration of the sulfuric acid electrolyte.

  8. Method to prevent sulfur accumulation in membrane electrode assembly

    DOE Patents [OSTI]

    Steimke, John L; Steeper, Timothy J; Herman, David T

    2014-04-29

    A method of operating a hybrid sulfur electrolyzer to generate hydrogen is provided that includes the steps of providing an anolyte with a concentration of sulfur dioxide, and applying a current. During steady state generation of hydrogen a plot of applied current density versus concentration of sulfur dioxide is below a boundary line. The boundary line may be linear and extend through the origin of the graph with a slope of 0.001 in which the current density is measured in mA/cm2 and the concentration of sulfur dioxide is measured in moles of sulfur dioxide per liter of anolyte.

  9. Fuel-rich sulfur capture in a combustion environment

    SciTech Connect (OSTI)

    Lindgren, E.R.; Pershing, D.W.; Kirchgessner, D.A.; Drehmel, D.C.

    1992-01-01

    The paper discusses the use of a refactory-lined, natural gas furnace to study the fuel-rich sulfur capture reactions of calcium sorbents under typical combustion conditions. The fuel-rich sulfur species hydrogen sulfide and carbonyl sulfide were monitored in a nearly continuous fashion using a gas chromatograph equiped with a flame photometric detector and an automatic system that sampled every 30 seconds. Below the fuel-rich zone, 25% excess air was added, and the ultimate fuel-lean capture was simultaneously measured using a continuous sulfur dioxide monitor. Under fuel-rich conditions, high levels of sulfur capture were obtained, and calcium utilization increased with sulfur concentration. The ultimate lean capture was found to be weakly dependent on sulfur concentration and independent of the sulfur capture level obtained in the fuel-rich zone.

  10. National Women's History Month

    Broader source: Energy.gov [DOE]

    During Women's History Month, we recall that the pioneering legacy of our grandmothers and great-grandmothers is revealed not only in our museums and history books, but also in the fierce...

  11. History | Department of Energy

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

    History History On January 7, 2011, the President signed H.R. 6523 (111th), the Ike Skelton National Defense Authorization Act for Fiscal Year 2011 (http:www.govtrack.us...

  12. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  13. Low-quality natural gas sulfur removal/recovery

    SciTech Connect (OSTI)

    Damon, D.A.; Siwajek, L.A.; Klint, B.W.

    1993-12-31

    Low quality natural gas processing with the integrated CFZ/CNG Claus process is feasible for low quality natural gas containing 10% or more of CO{sub 2}, and any amount of H{sub 2}S. The CNG Claus process requires a minimum CO{sub 2} partial pressure in the feed gas of about 100 psia (15% CO{sub 2} for a 700 psia feed gas) and also can handle any amount of H{sub 2}S. The process is well suited for handling a variety of trace contaminants usually associated with low quality natural gas and Claus sulfur recovery. The integrated process can produce high pressure carbon dioxide at purities required by end use markets, including food grade CO{sub 2}. The ability to economically co-produce high pressure CO{sub 2} as a commodity with significant revenue potential frees process economic viability from total reliance on pipeline gas, and extends the range of process applicability to low quality gases with relatively low methane content. Gases with high acid gas content and high CO{sub 2} to H{sub 2}S ratios can be economically processed by the CFZ/CNG Claus and CNG Claus processes. The large energy requirements for regeneration make chemical solvent processing prohibitive. The cost of Selexol physical solvent processing of the LaBarge gas is significantly greater than the CNG/CNG Claus and CNG Claus processes.

  14. Catalyst for elemental sulfur recovery process

    DOE Patents [OSTI]

    Flytzani-Stephanopoulos, Maria; Liu, Wei

    1995-01-01

    A catalytic reduction process for the direct recovery of elemental sulfur from various SO.sub.2 -containing industrial gas streams. The catalytic process provides high activity and selectivity, as well as stability in the reaction atmosphere, for the reduction of SO.sub.2 to elemental sulfur product with carbon monoxide or other reducing gases. The reaction of sulfur dioxide and reducing gas takes place over a metal oxide composite catalyst having one of the following empirical formulas: [(OF.sub.2).sub.1-n (RO.sub.1)n].sub.1-k M.sub.k, [(FO.sub.2).sub.1-n (RO.sub.1.5).sub.n ].sub.1-k M.sub.k, or [Ln.sub.x Zr.sub.1-x O.sub.2-0.5x ].sub.1-k M.sub.k wherein FO.sub.2 is a fluorite-type oxide; RO represents an alkaline earth oxide; RO.sub.1.5 is a Group IIIB or rare earth oxide; Ln is a rare earth element having an atomic number from 57 to 65 or mixtures thereof; M is a transition metal or a mixture of transition metals; n is a number having a value from 0.0 to 0.35; k is a number having a value from 0.0 to about 0.5; and x is a number having a value from about 0.45 to about 0.55.

  15. Sodium/sulfur battery engineering for stationary energy storage. Final report

    SciTech Connect (OSTI)

    Koenig, A.; Rasmussen, J.

    1996-04-01

    The use of modular systems to distribute power using batteries to store off-peak energy and a state of the art power inverter is envisioned to offer important national benefits. A 4-year, cost- shared contract was performed to design and develop a modular, 300kVA/300-kWh system for utility and customer applications. Called Nas-P{sub AC}, this system uses advanced sodium/sulfur batteries and requires only about 20% of the space of a lead-acid-based system with a smaller energy content. Ten, 300-VDC, 40-kWh sodium/sulfur battery packs are accommodated behind a power conversion system envelope with integrated digital control. The resulting design facilities transportation, site selection, and deployment because the system is quiet and non-polluting, and can be located in proximity to the load. This report contains a detailed description of the design and supporting hardware development performed under this contract.

  16. Evaluation of an enhanced gravity-based fine-coal circuit for high-sulfur coal

    SciTech Connect (OSTI)

    Mohanty, M.K.; Samal, A.R.; Palit, A.

    2008-02-15

    One of the main objectives of this study was to evaluate a fine-coal cleaning circuit using an enhanced gravity separator specifically for a high sulfur coal application. The evaluation not only included testing of individual unit operations used for fine-coal classification, cleaning and dewatering, but also included testing of the complete circuit simultaneously. At a scale of nearly 2 t/h, two alternative circuits were evaluated to clean a minus 0.6-mm coal stream utilizing a 150-mm-diameter classifying cyclone, a linear screen having a projected surface area of 0.5 m{sup 2}, an enhanced gravity separator having a bowl diameter of 250 mm and a screen-bowl centrifuge having a bowl diameter of 500 mm. The cleaning and dewatering components of both circuits were the same; however, one circuit used a classifying cyclone whereas the other used a linear screen as the classification device. An industrial size coal spiral was used to clean the 2- x 0.6-mm coal size fraction for each circuit to estimate the performance of a complete fine-coal circuit cleaning a minus 2-mm particle size coal stream. The 'linear screen + enhanced gravity separator + screen-bowl circuit' provided superior sulfur and ash-cleaning performance to the alternative circuit that used a classifying cyclone in place of the linear screen. Based on these test data, it was estimated that the use of the recommended circuit to treat 50 t/h of minus 2-mm size coal having feed ash and sulfur contents of 33.9% and 3.28%, respectively, may produce nearly 28.3 t/h of clean coal with product ash and sulfur contents of 9.15% and 1.61 %, respectively.

  17. History of Wind Energy | Department of Energy

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

    History of Wind Energy History of Wind Energy

  18. History of Wind Energy | Department of Energy

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

    History of Wind Energy History of Wind Energy

  19. Sulfur control in ion-conducting membrane systems

    DOE Patents [OSTI]

    Stein, VanEric Edward; Richards, Robin Edward; Brengel, David Douglas; Carolan, Michael Francis

    2003-08-05

    A method for controlling the sulfur dioxide partial pressure in a pressurized, heated, oxygen-containing gas mixture which is contacted with an ion-conducting metallic oxide membrane which permeates oxygen ions. The sulfur dioxide partial pressure in the oxygen-depleted non-permeate gas from the membrane module is maintained below a critical sulfur dioxide partial pressure, p.sub.SO2 *, to protect the membrane material from reacting with sulfur dioxide and reducing the oxygen flux of the membrane. Each ion-conducting metallic oxide material has a characteristic critical sulfur dioxide partial pressure which is useful in determining the required level of sulfur removal from the feed gas and/or from the fuel gas used in a direct-fired feed gas heater.

  20. Sulfur-impurity Induced Amorphization of Nickel | Argonne Leadership

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computing Facility Sulfur-impurity Induced Amorphization of Nickel Authors: Yuan, Z., Chen, H.P, Wang, W., Nomura, K., Kalia, R.K., Nakano, A., Vashishta, P. Recent experimental and theoretical studies have shown an essential role of sulfur segregation-induced amorphization of crystalline nickel leading to its embrittlement at a critical sulfur concentration of ∼14%, but the atomistic mechanism of the amorphization remains unexplained. Here, molecular dynamics simulations reveal that the

  1. Removal of sulfur compounds from combustion product exhaust

    DOE Patents [OSTI]

    Cheng, Dah Y.

    1982-01-01

    A method and device are disclosed for removing sulfur containing contaminents from a combustion product exhaust. The removal process is carried out in two stages wherein the combustion product exhaust is dissolved in water, the water being then heated to drive off the sulfur containing contaminents. The sulfur containing gases are then resolublized in a cold water trap to form a concentrated solution which can then be used as a commercial product.

  2. Sparingly Solvating Electrolytes for High Energy Density Lithium-Sulfur

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Batteries - Joint Center for Energy Storage Research August 24, 2016, Videos Sparingly Solvating Electrolytes for High Energy Density Lithium-Sulfur Batteries As JCESR scientists work to develop lighter and less expensive chemistries than those used in current lithium-ion batteries, lithium-sulfur shows tremendous promise. However, current lithium-sulfur batteries require an excessive amount of electrolyte to achieve moderate cycle life. This perspective presents an alternate approach of

  3. Sulfide catalysts for reducing SO2 to elemental sulfur

    DOE Patents [OSTI]

    Jin, Yun; Yu, Qiquan; Chang, Shih-Ger

    2001-01-01

    A highly efficient sulfide catalyst for reducing sulfur dioxide to elemental sulfur, which maximizes the selectivity of elemental sulfur over byproducts and has a high conversion efficiency. Various feed stream contaminants, such as water vapor are well tolerated. Additionally, hydrogen, carbon monoxide, or hydrogen sulfides can be employed as the reducing gases while maintaining high conversion efficiency. This allows a much wider range of uses and higher level of feed stream contaminants than prior art catalysts.

  4. Project Profile: Baseload CSP Generation Integrated with Sulfur-Based

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

    Thermochemical Heat Storage | Department of Energy Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage Project Profile: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage General Atomics logo General Atomics, under the Baseload CSP FOA, demonstrated the engineering feasibility of using a sulfur-based thermochemical cycle to store heat from a CSP plant and support baseload power generation. Approach Graphic of a diagram of squares and

  5. EERE Website Content Checklist

    Broader source: Energy.gov [DOE]

    This checklist is a tool to guide EERE content developers and editors in creating and reviewing content for websites.

  6. History | Department of Energy

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

    About Energy.gov » History History What's New in History July 13, 2016: DOE Receives Chairman's Award for Achievement in Historic Preservation July 13, 2016: DOE Receives Chairman's Award for Achievement in Historic Preservation The ACHP presents DOE and two local partners with the Chairman's Award for Historic Preservation for their efforts to restore and reuse the historic Alexander Inn in Oak Ridge, Tennessee. The "Guest House" was built to accommodate officials visiting the Oak

  7. History | Department of Energy

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

    About Us » History History The following is a short history recounting the evolution of the project management office within the Department of Energy: The project management office was originally called the Office of Field Management (FM) and was under the purview of the Office of the Chief Financial Officer in the 1990s. In the fiscal year 2000 Energy & Water Development Appropriations, the Senate initiated and the House concurred to eliminate funding for DOE's Office of Field Management.

  8. Extraction of Sulfur Mustard Metabolites from Urine Samples and...

    Office of Scientific and Technical Information (OSTI)

    Title: Extraction of Sulfur Mustard Metabolites from Urine Samples and Analysis by Liquid Chromatography-High-Resolution Mass Spectrometry (LC-HRMS) Authors: Mayer, B P ; Williams, ...

  9. Microsoft Word - Updated Air Dispersion Modeling Table _sulfur...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DIVINE STRAKE AIR DISPERSION MODELING RESULTS for SULFUR DIOXIDE The attached table is ... within the Nevada Ambient Air Quality Standards at the boundary of the Nevada Test Site. ...

  10. Lithium/Sulfur Batteries Based on Doped Mesoporous Carbon - Energy...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of doped mesoporous carbon and elemental sulfur at a temperature inside a stainless steel vessel, which was used in lithiumsulfur batteries that were tested in ...

  11. Project Profile: Baseload CSP Generation Integrated with Sulfur...

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

    Concentrating Solar Power Project Profile: Baseload CSP Generation Integrated with Sulfur-Based ... General Atomics is seeking a better thermal energy storage approach using ...

  12. Following the Transient Reactions in Lithium-Sulfur Batteries...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Following the Transient Reactions in Lithium-Sulfur Batteries Using an In Situ Nuclear ... cell electrochemical reactions in Li-S batteries using a microbattery design Interphase ...

  13. Sulfur removal and comminution of carbonaceous material

    DOE Patents [OSTI]

    Narain, Nand K.; Ruether, John A.; Smith, Dennis N.

    1988-01-01

    Finely divided, clean coal or other carbonaceous material is provided by forming a slurry of coarse coal in aqueous alkali solution and heating the slurry under pressure to above the critical conditions of steam. The supercritical fluid penetrates and is trapped in the porosity of the coal as it swells in a thermoplastic condition at elevated temperature. By a sudden, explosive release of pressure the coal is fractured into finely divided particles with release of sulfur-containing gases and minerals. The finely divided coal is recovered from the minerals for use as a clean coal product.

  14. Sulfur removal and comminution of carbonaceous material

    DOE Patents [OSTI]

    Narain, N.K.; Ruether, J.A.; Smith, D.N.

    1987-10-07

    Finely divided, clean coal or other carbonaceous material is provided by forming a slurry of coarse coal in aqueous alkali solution and heating the slurry under pressure to above the critical conditions of steam. The supercritical fluid penetrates and is trapped in the porosity of the coal as it swells in a thermoplastic condition at elevated temperature. By a sudden, explosive release of pressure the coal is fractured into finely divided particles with release of sulfur-containing gases and minerals. The finely divided coal is recovered from the minerals for use as a clean coal product. 2 figs.

  15. Sodium-tetravalent sulfur molten chloroaluminate cell

    DOE Patents [OSTI]

    Mamantov, Gleb (Knoxville, TN)

    1985-04-02

    A sodium-tetravalent sulfur molten chloroaluminate cell with a .beta."-alumina sodium ion conductor having a S-Al mole ratio of above about 0.15 in an acidic molten chloroaluminate cathode composition is disclosed. The cathode composition has an AlCl.sub.3 -NaCl mole percent ratio of above about 70-30 at theoretical full charge. The cell provides high energy densities at low temperatures and provides high energy densities and high power densities at moderate temperatures.

  16. Microscale acceleration history discriminators

    DOE Patents [OSTI]

    Polosky, Marc A.; Plummer, David W.

    2002-01-01

    A new class of micromechanical acceleration history discriminators is claimed. These discriminators allow the precise differentiation of a wide range of acceleration-time histories, thereby allowing adaptive events to be triggered in response to the severity (or lack thereof) of an external environment. Such devices have applications in airbag activation, and other safety and surety applications.

  17. History of Air Conditioning | Department of Energy

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

    History of Air Conditioning History of Air Conditioning July 20, 2015 - 3:15pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs MORE ON AIR CONDITIONING Check out our Energy Saver 101 infographic to learn how air conditioners work. Go to Energy Saver for more tips and advice on home cooling. Stay up-to-date on how the Energy Department is working to improve air conditioning technology. We take the air conditioner for granted, but imagine what life would be

  18. Sodium sulfur container with chromium/chromium oxide coating

    DOE Patents [OSTI]

    Ludwig, Frank A.; Higley, Lin R.

    1981-01-01

    A coating of chromium/chromium oxide is disclosed for coating the surfaces of electrically conducting components of a sodium sulfur battery. This chromium/chromium oxide coating is placed on the surfaces of the electrically conducting components of the battery which are in contact with molten polysulfide and sulfur reactants during battery operation.

  19. Integrated boiler, superheater, and decomposer for sulfuric acid decomposition

    DOE Patents [OSTI]

    Moore, Robert; Pickard, Paul S.; Parma, Jr., Edward J.; Vernon, Milton E.; Gelbard, Fred; Lenard, Roger X.

    2010-01-12

    A method and apparatus, constructed of ceramics and other corrosion resistant materials, for decomposing sulfuric acid into sulfur dioxide, oxygen and water using an integrated boiler, superheater, and decomposer unit comprising a bayonet-type, dual-tube, counter-flow heat exchanger with a catalytic insert and a central baffle to increase recuperation efficiency.

  20. Sulfur Speciation of Different Kerogens using XANES Spectroscopy

    SciTech Connect (OSTI)

    Wiltfong,R.; Mitra-Kirtley, S.; Mullins, O.; Andrews, B.; Fujisawa, G.; Larsen, J.

    2005-01-01

    X-ray absorption near-edge structure (XANES) methodology has been employed to quantify the different sulfur structures present in three Type I and three Type II kerogens. Kerogens from the Green River (3), Bakken (1), Woodford (1), and Indiana limestone (1) formations were studied. Both aliphatic (sulfide) and aromatic (thiophene) forms of sulfur exist in all these kerogen samples. Except for Woodford, all of the kerogens contain oxidized functional groups. Sulfur in Types I and II kerogens mimics the carbon chemistry in that the sulfur structures are more aromatic in Type II than in Type I. It was impossible to differentiate elemental sulfur from pyrite in these samples by using K-edge XANES.

  1. Metal-sulfur type cell having improved positive electrode

    DOE Patents [OSTI]

    Dejonghe, Lutgard C.; Visco, Steven J.; Mailhe, Catherine C.; Armand, Michel B.

    1989-01-01

    An novel metal-sulfur type cell operable at a temperature of 200.degree. C. or less with an energy density of 150 Whrs/Kg or better is disclosed characterized by an organo-sulfur cathode formed from an organic-sulfur compound having the general formula, in its charged state, of (R(S).sub.y).sub.n wherein y=1 to 6; n=2 to 20; and R is one or more different aliphatic or aromatic organic moieties having 1 to 20 carbon atoms, which may include one or more oxygen, sulfur, or nitrogen heteroatoms when R comprisises one of more aromatic rings, or one or more oxygen, sulfur, nitrogen, or fluorine atoms associtated with the chain when R comprises an aliphatic chain, wherein the aliphatic group may be linear or branched, saturated or unsaturated, and wherein either the aliphatic chain or the aromatic ring may have substituted groups thereon.

  2. Metal-sulfur type cell having improved positive electrode

    DOE Patents [OSTI]

    DeJonghe, L.C.; Visco, S.J.; Mailhe, C.C.; Armand, M.B.

    1988-03-31

    A novel metal-sulfur type cell operable at a temperature of 200/degree/C or less with an energy density of 150 Whrs/Kg or better is disclosed characterized by an organo-sulfur cathode formed from an organic-sulfur compound having the general formula, in its charged state, of (R(S)/sub y/)n wherein y = 1 to 6; n = 2 to 20; and R is one or more different aliphatic or aromatic organic moieties having 1 to 20 carbon atoms, which may include one or more oxygen, sulfur, or nitrogen heteroatoms when R comprises one or more aromatic rings, or one or more oxygen, sulfur, nitrogen, or fluorine atoms associated with the chain when R comprises an aliphatic chain, wherein the aliphatic group may be linear or branched, saturated or unsaturated, and wherein either the aliphatic chain or the aromatic ring may have substituted groups thereon. 4 figs.

  3. Removal of sulfur contaminants in methanol for fuel cell applications

    SciTech Connect (OSTI)

    Lee, S.H.D.; Kumar, R.; Sederquist, R.

    1996-12-31

    Fuel cell power plants are being developed for transit bus and passenger car applications that use methanol as the on-board fuel. Commodity methanol by itself contains very little sulfur; however, it may occasionally be contaminated with up to about 1% diesel fuel or gasoline in current liquid-fuel distribution systems, leading to the presence of sulfur in the methanol fuel. This sulfur must be removed because of its deleterious effect on the reforming catalysts. International Fuel Cells has set the allowable sulfur limit in the methanol fuel at less than 1 ppm. The equilibrium adsorption isotherm and breakthrough data were used to assess the feasibility of developing a granular activated carbon adsorber for the removal of sulfur from transportation fuel cell systems.

  4. Multi-model mean nitrogen and sulfur deposition from the Atmospheric...

    Office of Scientific and Technical Information (OSTI)

    Multi-model mean nitrogen and sulfur deposition from the Atmospheric Chemistry and Climate ... Title: Multi-model mean nitrogen and sulfur deposition from the Atmospheric Chemistry and ...

  5. Black History Month

    Broader source: Energy.gov [DOE]

    During National African American History Month, we pay tribute to the contributions of past generations and reaffirm our commitment to keeping the American dream alive for the next generation.  In...

  6. Departmental History Program

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-03-26

    The order describes the DOE history program and establishes policy and objectives for the preservation of historical records and institutional memory for DOE and its predecessor agencies. Cancels DOE 1324.7.

  7. VOLTTRON: Introduction and History

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

    Introduction and History JEREME HAACK, SRINIVAS KATIPAMULA, BRANDON CARPENTER, BORA AKYOL Pacific Northwest National Laboratory DOE Building Technologies Office: Technical Meeting on Software Framework for Transactive Energy July 23-24, 2014 July 29, 2014 1 VOLTTRON Team 2 3 Presentation Outline Background and Motivation What is VOLTTRON? Development History DOE Funded Enhancements Open Source VOLTTRON Development Timeline Challenge Approach Impact Bridging operation and planning to enable

  8. About SRNL - Our History

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    From the Director Operational Excellence Leadership Directorates Our History Visiting SRNL SRNL Home SRNL historic image SRNL historic image About SRNL Our History Evolution of SRNL's Department of Energy Role The Savannah River Site was constructed to produce the basic materials necessary in the fabrication of nuclear weapons, primarily tritium and plutonium-239. Five reactors were also built in an effort to produce these materials for our nation's defense programs. In support of these efforts,

  9. History | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    History of SPR Releases History of SPR Releases The following provides a brief description of the times when crude oil has been released from the Strategic Petroleum Reserve (SPR). Emergency Drawdowns: The SPR exists, first and foremost, as an emergency response tool the President can use should the United States be confronted with an economically-threatening disruption in oil supplies. 2005 Hurricane Katrina Sale | 1991 Operation Desert Storm Sale Crude Oil Test Sales: The SPR has also

  10. PAFC History and Successes

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

    PAFC History and Successes John Ferro Manager Product Development john.ferro@utcpower.com 2 2 AGENDA Company overview and history System description and applications Failure modes and life analysis Summary 3 3 Research Center Hamilton Sundstrand Pratt & Whitney Sikorsky UTC Power Otis Carrier UTC Fire & Security UNITED TECHNOLOGIES CORPORATION 18 th largest U.S. manufacturer (2009 list, Industry Week) 37 th largest U.S. corporation (2009 list, Fortune) 61 st largest publicly held