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


1

Nuclear Analytical Methods  

Science Conference Proceedings (OSTI)

... Nuclear Analytical Methods. Research activities in the Nuclear Analytical Methods Group are focused on the science that ...

2

Ammonia release method for depositing metal oxides  

DOE Patents (OSTI)

A method of depositing metal oxides on substrates which is indifferent to the electrochemical properties of the substrates and which comprises forming ammine complexes containing metal ions and thereafter effecting removal of ammonia from the ammine complexes so as to permit slow precipitation and deposition of metal oxide on the substrates.

Silver, G.L.; Martin, F.S.

1993-12-31T23:59:59.000Z

3

Method for Forming Ammonia - Energy Innovation Portal  

Energy Innovation Portal Technologies. ... Then, the reaction with the metal nitride particles reacts with water to generate ammonia and an oxide/hydro-oxide byproduct.

4

New Lignin Separation Method from Ammonia Solutions - Energy ...  

Bio-ethanol plants typically use ammonia to separate lignin from the cellulosic fibers for a more efficient operation. Lignin itself is a byproduct with a variety ...

5

Experimental and analytical study of condensation of ammonia-water mixtures  

SciTech Connect

The need for more energy efficient power generation and recent environmental issues of CFCs prompted the development of combined steam and Kalina cycle power systems, and advanced ammonia/water absorption heat pumps. However, the working media and associated thermal design aspects require new concepts for maintaining high thermal effectiveness and phase equilibrium for achieving maximum possible thermodynamic advantages. In the present study, a theoretical analysis was carried for the condensation of ammonia/water mixtures on a vertical tube. A set of equations was formulated and a calculation algorithm was developed to predict the local rate of heat and mass fluxes for binary ammonia-water systems. The predicted rate of condensation was compared with the experimental data obtained at Oak Ridge National Laboratory (ORNL) for a mixture of 90% ammonia and 10% water. The role of diffusion in simultaneous heat and mass transfer associated with condensation was analyzed by comparing the results from three limiting cases, which include equilibrium conditions, and liquid-phase diffusion of finite and infinite values. The results showed that the vapor-phase diffusion is a controlling mechanism.

Panchal, C.B.; Kuru, W.C. [Argonne National Lab., IL (United States); Chen, F.C.; Domingo, N. [Oak Ridge National Lab., TN (United States); HuangFu, E.P.

1997-06-01T23:59:59.000Z

6

FGD Chemistry and Analytical Methods Handbook  

Science Conference Proceedings (OSTI)

The purpose of this handbook is to provide a comprehensive guide to sampling, analytical, and physical test methods essential to the operation, maintenance, and understanding of flue gas desulfurization (FGD) system chemistry. EPRI sponsored the preparation of the first version of this multi-volume report in the mid-1980s in response to the needs of electric utility personnel responsible for establishing and operating FGD analytical laboratories. Prompted by the results of research into various nonstanda...

2007-03-29T23:59:59.000Z

7

Biodiesel Analytical Methods: August 2002--January 2004  

DOE Green Energy (OSTI)

Biodiesel is an alternative fuel for diesel engines that is receiving great attention worldwide. The material contained in this book is intended to provide the reader with information about biodiesel engines and fuels, analytical methods used to measure fuel properties, and specifications for biodiesel quality control.

Van Gerpen, J.; Shanks, B.; Pruszko, R.; Clements, D.; Knothe, G.

2004-07-01T23:59:59.000Z

8

AOCS Official Method F 8-44  

Science Conference Proceedings (OSTI)

Total Ammonia AOCS Official Method F 8-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines total ammonia in the laboratory sample. ...

9

SASSI Analytical Methods Compared with SHAKE Free-Field Results  

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

Analytical Methods Compared with SHAKE Results Structural Mechanics - SRS October 4, 2011 1 Objective This study presents a methodology for validating SASSI for use with a...

10

Statistically qualified neuro-analytic failure detection method and system  

DOE Patents (OSTI)

An apparatus and method for monitoring a process involve development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two stages: deterministic model adaption and stochastic model modification of the deterministic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics, augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation error minimization technique. Stochastic model modification involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system. Illustrative of the method and apparatus, the method is applied to a peristaltic pump system.

Vilim, Richard B. (Aurora, IL); Garcia, Humberto E. (Idaho Falls, ID); Chen, Frederick W. (Naperville, IL)

2002-03-02T23:59:59.000Z

11

SASSI Analytical Methods Compared with SHAKE Free-Field Results  

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

Analytical Methods Analytical Methods Compared with SHAKE Results Structural Mechanics - SRS October 4, 2011 1 Objective This study presents a methodology for validating SASSI for use with a particular site profile, foundation size, and embedment depth. Two case studies are presented: 1) a deep soil site at the Savannah River Site (SRS) 2) a shallow stiff soil site at the Hanford Waste Treatment Plant (WTP). Embedded box in SASSI is evaluated with Direct Method and (Modified) Subtraction method. 2 * Ground motion at the surface is deconvolved in SHAKE to the bottom of the soil column and then brought back to the surface in a SASSI embedded box model. * SASSI response spectra at the ground and foundation levels are

12

Analytical methods associated with the recovery of uranium  

Science Conference Proceedings (OSTI)

This report summarizes various approaches made to the analysis of materials arising from the processing of Karoo deposits for uranium. These materials include head and residue samples, aqueous solutions and organic solvents and, finally, the precipitated cakes of the elements recovered, i.e. uranium, molybdenum, and arsenic. Analysis was required for these elements and also vanadium, carbon, sulphur, and carbonate in the head and residue samples. The methods used include combustion methods for carbon, sulphur, and carbonate, and atomic-absorption, X-ray-fluorescence, and emission methods for the other analytes. The accuracy of the analysis is within 10 per cent.

Dixon, K.

1983-11-15T23:59:59.000Z

13

Analytical Methods for Measuring Mercury in Water, Sediment and Biota  

Science Conference Proceedings (OSTI)

Mercury (Hg) exists in a large number of physical and chemical forms with a wide range of properties. Conversion between these different forms provides the basis for mercury's complex distribution pattern in local and global cycles and for its biological enrichment and effects. Since the 1960’s, the growing awareness of environmental mercury pollution has stimulated the development of more accurate, precise and efficient methods of determining mercury and its compounds in a wide variety of matrices. During recent years new analytical techniques have become available that have contributed significantly to the understanding of mercury chemistry in natural systems. In particular, these include ultra sensitive and specific analytical equipment and contamination-free methodologies. These improvements allow for the determination of total mercury as well as major species of mercury to be made in water, sediments and soils, and biota. Analytical methods are selected depending on the nature of the sample, the concentration levels of mercury, and what species or fraction is to be quantified. The terms “speciation” and “fractionation” in analytical chemistry were addressed by the International Union for Pure and Applied Chemistry (IUPAC) which published guidelines (Templeton et al., 2000) or recommendations for the definition of speciation analysis. "Speciation analysis is the analytical activity of identifying and/or measuring the quantities of one or more individual chemical species in a sample. The chemical species are specific forms of an element defined as to isotopic composition, electronic or oxidation state, and/or complex or molecular structure. The speciation of an element is the distribution of an element amongst defined chemical species in a system. In case that it is not possible to determine the concentration of the different individual chemical species that sum up the total concentration of an element in a given matrix, meaning it is impossible to determine the speciation, it is a useful practice to do fractionation instead. Fractionation is the process of classification of an analyte or a group of analytes from a certain sample according to physical (e.g. size, solubility) or chemical (e.g. bonding, reactivity) properties."

Lasorsa, Brenda K.; Gill, Gary A.; Horvat, Milena

2012-06-07T23:59:59.000Z

14

AN ANNOTATED BIBLIOGRAPHY OF ANALYTICAL METHODS FOR ALKALI METALS  

DOE Green Energy (OSTI)

A total of 107 abstracts is presented on analytical methods for alkali metals, as a part of a program for the evaluation of the performance of the primary cold trap from the Enrico Fermi Reactor. The abstracts are arranged into sections dealing with general aspects; sampling and dissolution techniques; and determination of uncombined alkali metal, oxygen, carbon, hydrogen, nitrogen, and other impurities. (D.L.C.)

Garcia, E.E.; LaMont, B.D.

1964-03-01T23:59:59.000Z

15

AOCS Official Method Bc 4-91  

Science Conference Proceedings (OSTI)

Nitrogen-Ammonia-Protein Modified Kjeldahl Method Titanium Dioxide + Copper Sulfate Catalyst AOCS Official Method Bc 4-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION

16

Reducing waste generation and radiation exposure by analytical method modification  

SciTech Connect

The primary goal of an analytical support laboratory has traditionally been to provide accurate data in a timely and cost effective fashion. Added to this goal is now the need to provide the same high quality data while generating as little waste as possible. At the Savannah River Technology Center (SRTC), we have modified and reengineered several methods to decrease generated waste and hence reduce radiation exposure. These method changes involved improving detection limits (which decreased the amount of sample required for analysis), decreasing reaction and analysis time, decreasing the size of experimental set-ups, recycling spent solvent and reagents, and replacing some methods. These changes had the additional benefits of reducing employee radiation exposure and exposure to hazardous chemicals. In all cases, the precision, accuracy, and detection limits were equal to or better than the replaced method. Most of the changes required little or no expenditure of funds. This paper describes these changes and discusses some of their applications.

Ekechukwu, A.A.

1996-10-01T23:59:59.000Z

17

Fats and Oils Handbook (Nahrungsfette und Öle)Chapter 9 Analytical Methods  

Science Conference Proceedings (OSTI)

Fats and Oils Handbook (Nahrungsfette und Öle) Chapter 9 Analytical Methods Food Science Health Nutrition Biochemistry eChapters Food Science & Technology Health - Nutrition - Biochemistry Analytical Chemistry Methods and Analyses P

18

The Biodiesel Handbook, 2nd EditionChapter 5 Analytical Methods  

Science Conference Proceedings (OSTI)

The Biodiesel Handbook, 2nd Edition Chapter 5 Analytical Methods Biofuels and Bioproducts and Biodiesel Biofuels - Bioproducts eChapters Press   Downloadable pdf of Chapter 5 Analytical Methods from ...

19

A Method of Performance Evaluation by Using the Analytic Network Process and Balanced Score Car  

Science Conference Proceedings (OSTI)

Performance evaluation is an important part of the enterprises' strategic management. The analytic hierarchy process (AHP) can provide an analytical means to determine the importance of the identified factors. The AHP method assumes that the factors ...

Ming-Chang Lee Ming-Cheng Wu; Hsiao-Wen Wang; Hsiu-Yuan Wang

2007-11-01T23:59:59.000Z

20

FGD Chemistry and Analytical Methods Handbook, Volume 2: Chemical and Physical Test Methods, Revision 1  

Science Conference Proceedings (OSTI)

Utilities operating flue gas desulfurization (FGD) systems can increase system reliability and reduce operating costs by monitoring and controlling process chemistry. A revision of volume 2 of this handbook, an industry standard for FGD chemistry labs, incorporates the latest advances in FGD analytical chemistry and introduces methods for determining liquid-phase thiosulfate and boron concentrations.

1988-11-01T23:59:59.000Z

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


21

A direct matrix method for computing analytical Jacobians of discretized nonlinear integro-differential equations  

Science Conference Proceedings (OSTI)

In this article, we present a simple direct matrix method for analytically computing the Jacobian of nonlinear algebraic equations that arise from the discretization of nonlinear integro-differential equations. The method is based on a formulation of ... Keywords: Analytical Jacobian, Integro-differential equations, Matrix calculus, Newton's method, Numerical methods

Kevin T. Chu

2009-08-01T23:59:59.000Z

22

Data Analytics Methods in Wind Turbine Design and Operations  

E-Print Network (OSTI)

This dissertation develops sophisticated data analytic methods to analyze structural loads on, and power generation of, wind turbines. Wind turbines, which convert the kinetic energy in wind into electrical power, are operated within stochastic environments. To account for the influence of environmental factors, we employ a conditional approach by modeling the expectation or distribution of response of interest, be it the structural load or power output, conditional on a set of environmental factors. Because of the different nature associated with the two types of responses, our methods also come in different forms, conducted through two studies. The first study presents a Bayesian parametric model for the purpose of estimating the extreme load on a wind turbine. The extreme load is the highest stress level that the turbine structure would experience during its service lifetime. A wind turbine should be designed to resist such a high load to avoid catastrophic structural failures. To assess the extreme load, turbine structural responses are evaluated by conducting field measurement campaigns or performing aeroelastic simulation studies. In general, data obtained in either case are not sufficient to represent various loading responses under all possible weather conditions. An appropriate extrapolation is necessary to characterize the structural loads in a turbine’s service life. This study devises a Bayesian spline method for this extrapolation purpose and applies the method to three sets of load response data to estimate the corresponding extreme loads at the roots of the turbine blades. In the second study, we propose an additive multivariate kernel method as a new power curve model, which is able to incorporate a variety of environmental factors in addition to merely the wind speed. In the wind industry, a power curve refers to the functional relationship between the power output generated by a wind turbine and the wind speed at the time of power generation. Power curves are used in practice for a number of important tasks including predicting wind power production and assessing a turbine’s energy production efficiency. Nevertheless, actual wind power data indicate that the power output is affected by more than just wind speed. Several other environmental factors, such as wind direction, air density, humidity, turbulence intensity, and wind shears, have potential impact. Yet, in industry practice, as well as in the literature, current power curve models primarily consider wind speed and, with comparatively less frequency, wind speed and direction. Our model provides, conditional on a given environmental condition, both the point estimation and density estimation of the power output. It is able to capture the nonlinear relationships between environmental factors and wind power output, as well as the high-order inter- action effects among some of the environmental factors. To illustrate the application of the new power curve model, we conduct case studies that demonstrate how the new method can help with quantifying the benefit of vortex generator installation, advising pitch control adjustment, and facilitating the diagnosis of faults.

Lee, Giwhyun

2013-08-01T23:59:59.000Z

23

Robustness for a single railway line: Analytical and simulation methods  

Science Conference Proceedings (OSTI)

Railway scheduling has been a significant issue in the railway industry. Over the last few years, numerous approaches and tools have been developed to compute railway scheduling. However, robust solutions are necessary to absorb short disruptions. In ... Keywords: Analytical measures, Railway timetabling, Robustness, Simulation tool

Miguel A. Salido; Federico Barber; Laura Ingolotti

2012-12-01T23:59:59.000Z

24

Hanford environmental analytical methods: Methods as of March 1990. Volume 3, Appendix A2-I  

Science Conference Proceedings (OSTI)

This paper from the analytical laboratories at Hanford describes the method used to measure pH of single-shell tank core samples. Sludge or solid samples are mixed with deionized water. The pH electrode used combines both a sensor and reference electrode in one unit. The meter amplifies the input signal from the electrode and displays the pH visually.

Goheen, S.C.; McCulloch, M.; Daniel, J.L.

1993-05-01T23:59:59.000Z

25

An Analytical Method to Evaluate Mixing Length Scales for the Planetary Boundary Layer  

Science Conference Proceedings (OSTI)

An analytical method to evaluate the Lagrangian length scales for a turbulent planetary boundary layer (PBL) under stable and convective conditions is described in this paper. The method is based on the Taylor's diffusion theory. Agreement with ...

G. A. Degrazia; O. L. L. Moraes; A. P. Oliveira

1996-06-01T23:59:59.000Z

26

A method to remove Ammonia using a Proton-Conducting Ceramic Membrane  

DOE Green Energy (OSTI)

An apparatus and method for decomposing NH{sub 3}. A fluid containing NH{sub 3} is passed in contact with a tubular membrane that is a homogeneous mixture of a ceramic and a first metal, with the ceramic being selected from one or more of a cerate having the formula of M' Ce{sub 1-x} M''O{sub 3-{delta}}, zirconates having the formula M'Zr{sub 1-x} M''3-{delta}, stannates having the formula M'Sn{sub 1-x}M''O{sub 3}-{delta}, where M' is a group IIA metal, M'' is a dopant metal of one or more of Ca, Y, Yb, In, Nd, Gd or mixtures thereof and {delta} is a variable depending on the concentration of dopant and is in the range of from 0.001 to 0.5, the first metal is a group VIII or group IB element selected from the group consisting of Pt, Ag, Pd, Fe, Co, Cr, Mn, V, Ni, Au, Cu, Rh, Ru and mixtures thereof. The tubular membrane has a catalytic metal on the side thereof in contact with the fluid containing NH{sub 3} which is effective to cause NH{sub 3} to decompose to N{sub 2} and H{sub 2}. When the H{sub 2} contacts the membrane, H{sup +} ions are formed which pass through the membrane driving the NH{sub 3} decomposition toward completion.

Balachandran, Uthamalingam; Bose, Arun C.

1999-09-22T23:59:59.000Z

27

A method to remove Ammonia using a Proton-Conducting Ceramic Membrane  

DOE Patents (OSTI)

An apparatus and method for decomposing NH{sub 3}. A fluid containing NH{sub 3} is passed in contact with a tubular membrane that is a homogeneous mixture of a ceramic and a first metal, with the ceramic being selected from one or more of a cerate having the formula of M' Ce{sub 1-x} M''O{sub 3-{delta}}, zirconates having the formula M'Zr{sub 1-x} M''3-{delta}, stannates having the formula M'Sn{sub 1-x}M''O{sub 3}-{delta}, where M' is a group IIA metal, M'' is a dopant metal of one or more of Ca, Y, Yb, In, Nd, Gd or mixtures thereof and {delta} is a variable depending on the concentration of dopant and is in the range of from 0.001 to 0.5, the first metal is a group VIII or group IB element selected from the group consisting of Pt, Ag, Pd, Fe, Co, Cr, Mn, V, Ni, Au, Cu, Rh, Ru and mixtures thereof. The tubular membrane has a catalytic metal on the side thereof in contact with the fluid containing NH{sub 3} which is effective to cause NH{sub 3} to decompose to N{sub 2} and H{sub 2}. When the H{sub 2} contacts the membrane, H{sup +} ions are formed which pass through the membrane driving the NH{sub 3} decomposition toward completion.

Balachandran, Uthamalingam; Bose, Arun C.

1999-09-22T23:59:59.000Z

28

Approximate analytical solutions for nonlinear Emden-Fowler type equations by differential transform method  

E-Print Network (OSTI)

In this paper, approximate analytical solutions of nonlinear Emden-Fowler type equations are obtained by the differential transform method (DTM). The DTM is a numerical as well as analytical method for solving integral equations, ordinary and partial diferential equations. To show the efficiency of the DTM, some examples are presented. Comparisons with exact solution show that the DTM is a powerful method for the solution of the nonlinear Emden-Fowler type equations.

Birol Ibis

2012-11-15T23:59:59.000Z

29

Statistically Qualified Neuro-Analytic system and Method for Process Monitoring  

DOE Patents (OSTI)

An apparatus and method for monitoring a process involves development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two steps: deterministic model adaption and stochastic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics,augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation emor minimization technique. Stochastic model adaptation involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system.

Vilim, Richard B.; Garcia, Humberto E.; Chen, Frederick W.

1998-11-04T23:59:59.000Z

30

Analytical Chemistry Laboratory (ACL) procedure compendium. Volume 4, Organic methods  

Science Conference Proceedings (OSTI)

This interim notice covers the following: extractable organic halides in solids, total organic halides, analysis by gas chromatography/Fourier transform-infrared spectroscopy, hexadecane extracts for volatile organic compounds, GC/MS analysis of VOCs, GC/MS analysis of methanol extracts of cryogenic vapor samples, screening of semivolatile organic extracts, GPC cleanup for semivolatiles, sample preparation for GC/MS for semi-VOCs, analysis for pesticides/PCBs by GC with electron capture detection, sample preparation for pesticides/PCBs in water and soil sediment, report preparation, Florisil column cleanup for pesticide/PCBs, silica gel and acid-base partition cleanup of samples for semi-VOCs, concentrate acid wash cleanup, carbon determination in solids using Coulometrics` CO{sub 2} coulometer, determination of total carbon/total organic carbon/total inorganic carbon in radioactive liquids/soils/sludges by hot persulfate method, analysis of solids for carbonates using Coulometrics` Model 5011 coulometer, and soxhlet extraction.

Not Available

1993-08-01T23:59:59.000Z

31

Ammonia Process by Pressure Swing Adsorption  

SciTech Connect

The overall objective of the project is to design, develop and demonstrate a technically feasible and commercially viable system to produce ammonia along with recovery of the products by adsorption separation methods and significantly decrease the energy requirement in ammonia production. This is achieved through a significantly more efficient ammonia psa recovery system. The new ammonia recovery system receives the reactor effluents and achieves complete ammonia recovery, (which completely eliminates the energy intensive refrigeration and condensation system currently used in ammonia production). It also recovers the unused reactants and recycles them back to the reactor, free of potential reactor contaminants, and without the need for re-compression and re-heat of recycle stream thereby further saving more energy. The result is a significantly lower energy consumption, along with capital cost savings.

Dr Felix Jegede

2010-12-27T23:59:59.000Z

32

A semi-analytical method for heat sweep calculations in fractured reservoirs  

DOE Green Energy (OSTI)

An analytical approximation is developed for purely conductive heat transfer from impermeable blocks of rock to fluids sweeping past the rocks in fractures. The method was incorporated into a multi-phase fluid and heat flow simulator. Comparison with exact analytical solutions and with simulations using a multiple interacting continua approach shows very good accuracy, with no increase in computing time compared to porous medium simulations. 14 refs., 3 figs., 5 tabs.

Pruess, K.; Wu, Y.S.

1988-01-01T23:59:59.000Z

33

AMMONIA DISTILLATION FOR DEUTERIUM SEPARATION  

SciTech Connect

The relative volatility or separation factor for deuterium enrichment in ammonia distillation was measured at several pressures and deuterium concentrations. The knowledge of this ingormation is very helpful in predicting costs of heawy water production by the ammonia distillation process. It hss been stated by others, that the ammonia distillation process of heawy water production would be competitive with other developed methods only if the actusl separation factor was at least 1.062 at low deuterium concentration. Ungortunately, the measurements do not indicate that the separation factor at low deuterium composition differs greatly from the vapor pressure pre diction ( alpha = 1.042). Deutero-ammonia was synthesized by isotopic exchange between natural ammonia and heavy water. Equilibrium determinations were made using an Othmer still, modified for low temperature operation, and a concentric tube fractionating column. The arnmonia samples were analyzed for deuterium content by converting them to water by flow torough hot copper oxide, followed by a differential density determination using the falling drop method. ( auth)

Petersen, G.T.; Benedict, M.

1960-05-16T23:59:59.000Z

34

Regeneration of ammonia borane from polyborazylene  

SciTech Connect

Method of producing ammonia borane, comprising providing a reagent comprising a dehydrogenated material in a suitable solvent; and combining the reagent with a reducing agent comprising hydrazine, a hydrazine derivative, or combinations thereof, in a reaction which produces a mixture comprising ammonia borane.

Sutton, Andrew; Gordon, John C; Ott, Kevin C; Burrell, Anthony K

2013-02-05T23:59:59.000Z

35

Guidance for characterizing explosives contaminated soils: Sampling and selecting on-site analytical methods  

SciTech Connect

A large number of defense-related sites are contaminated with elevated levels of secondary explosives. Levels of contamination range from barely detectable to levels above 10% that need special handling due to the detonation potential. Characterization of explosives-contaminated sites is particularly difficult due to the very heterogeneous distribution of contamination in the environment and within samples. To improve site characterization, several options exist including collecting more samples, providing on-site analytical data to help direct the investigation, compositing samples, improving homogenization of samples, and extracting larger samples. On-site analytical methods are essential to more economical and improved characterization. On-site methods might suffer in terms of precision and accuracy, but this is more than offset by the increased number of samples that can be run. While verification using a standard analytical procedure should be part of any quality assurance program, reducing the number of samples analyzed by the more expensive methods can result in significantly reduced costs. Often 70 to 90% of the soil samples analyzed during an explosives site investigation do not contain detectable levels of contamination. Two basic types of on-site analytical methods are in wide use for explosives in soil, calorimetric and immunoassay. Calorimetric methods generally detect broad classes of compounds such as nitroaromatics or nitramines, while immunoassay methods are more compound specific. Since TNT or RDX is usually present in explosive-contaminated soils, the use of procedures designed to detect only these or similar compounds can be very effective.

Crockett, A.B. [Idaho National Engineering Lab., Idaho Falls, ID (United States); Craig, H.D. [Environmental Protection Agency, Portland, OR (United States). Oregon Operations Office; Jenkins, T.F. [Army Cold Regions Research and Engineering Lab., Hanover, NH (United States); Sisk, W.E. [Army Environmental Center, Aberdeen Proving Grounds, MD (United States)

1996-09-01T23:59:59.000Z

36

A Mathematical Method for Exact Analytical Solution of the Schroedinger Equation with Non-central Potential  

Science Conference Proceedings (OSTI)

In this paper, we have studied the Schroedinger equation with central and non-central potential. We have solved the Schroedinger equation in spherical coordinate analytically by using supersymmetric and shape invariance methods. Then we have found the radial and angular parts of wavefunction. Finally the energy eigenvalues of the Schroedinger equation with non-central potential are obtained.

Shojaei, M. R.; Rajabi, A. A. [Department of physics, Shahrood University of Technology (Iran, Islamic Republic of); Momen, Y. [Department of physics, Payamnoor University of Fariman (Iran, Islamic Republic of)

2011-12-26T23:59:59.000Z

37

Qualified Analysis b/w ESB(s) Using Analytical Hierarchy Process (AHP) Method  

Science Conference Proceedings (OSTI)

This research study stress upon the qualified or comparative analysis between commercial and non-commercial Enterprise Service Buses (ESB) for large-scale organizations. We have used Multi Criteria Decision Analysis (MCDA) method known as Analytical ... Keywords: Software engineering, Service Oriented Architectures (SOA), Enterprise Service Bus (ESB), MCDA, AHP, Information Security (IS), Interoperability, High availability, C4I

Zeeshan Siddiqui; Abdul Hanan Abdullah; Muhammad Khurram Khan

2011-01-01T23:59:59.000Z

38

Analytic method for three-center nuclear attraction integrals: a generalization of the Gegenbauer addition theorem  

Science Conference Proceedings (OSTI)

A completely analytic method for evaluating three-center nuclear-attraction integrals for STOS is presented. The method exploits a separation of the STO into an evenly loaded solid harmonic and a OS STO. The harmonics are translated to the molecular center of mass in closed finite terms. The OS STO is translated using the Gegenbauer addition theorem; ls STOS are translated using a single parametric differentiation of the OS formula. Explicit formulas for the integrals are presented for arbitrarily located atoms. A numerical example is given to illustrate the method.

Weatherford, C.A.

1988-01-01T23:59:59.000Z

39

SRC-I demonstration plant analytical laboratory methods manual. Final technical report  

Science Conference Proceedings (OSTI)

This manual is a compilation of analytical procedures required for operation of a Solvent-Refined Coal (SRC-I) demonstration or commercial plant. Each method reproduced in full includes a detailed procedure, a list of equipment and reagents, safety precautions, and, where possible, a precision statement. Procedures for the laboratory's environmental and industrial hygiene modules are not included. Required American Society for Testing and Materials (ASTM) methods are cited, and ICRC's suggested modifications to these methods for handling coal-derived products are provided.

Klusaritz, M.L.; Tewari, K.C.; Tiedge, W.F.; Skinner, R.W.; Znaimer, S.

1983-03-01T23:59:59.000Z

40

Analytical Chemistry Laboratory (ACL) procedure compendium. Volume 3, Inorganic instrumental methods  

Science Conference Proceedings (OSTI)

The methods cover: C in solutions, F (electrode), elements by atomic emission spectrometry, inorganic anions by ion chromatography, Hg in water/solids/sludges, As, Se, Bi, Pb, data calculations for SST (single shell tank?) samples, Sb, Tl, Ag, Pu, O/M ratio, ignition weight loss, pH value, ammonia (N), Cr(VI), alkalinity, U, C sepn. from soil/sediment/sludge, Pu purif., total N, water, C and S, surface Cl/F, leachable Cl/F, outgassing of Ge detector dewars, gas mixing, gas isotopic analysis, XRF of metals/alloys/compounds, H in Zircaloy, H/O in metals, inpurity extraction, reduced/total Fe in glass, free acid in U/Pu solns, density of solns, Kr/Xe isotopes in FFTF cover gas, H by combustion, MS of Li and Cs isotopes, MS of lanthanide isotopes, GC operation, total Na on filters, XRF spectroscopy QC, multichannel analyzer operation, total cyanide in water/solid/sludge, free cyanide in water/leachate, hydrazine conc., ICP-MS, {sup 99}Tc, U conc./isotopes, microprobe analysis of solids, gas analysis, total cyanide, H/N{sub 2}O in air, and pH in soil.

Not Available

1993-08-01T23:59:59.000Z

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


41

Conversion of ammonia into hydrogen and nitrogen by reaction with a sulfided catalyst  

DOE Patents (OSTI)

A method is provided for removing ammonia from the sour water stream of a coal gasification process. The basic steps comprise stripping the ammonia from the sour water; heating the stripped ammonia to a temperature from between 400.degree. to 1,000.degree. F; passing the gaseous ammonia through a reactor containing a sulfided catalyst to produce elemental hydrogen and nitrogen; and scrubbing the reaction product to obtain an ammonia-free gas. The residual equilibrium ammonia produced by the reactor is recycled into the stripper. The ammonia-free gas may be advantageously treated in a Claus process to recover elemental sulfur. Iron sulfide or cobalt molybdenum sulfide catalysts are used.

Matthews, Charles W. (Denver, CO)

1977-01-01T23:59:59.000Z

42

Analytical methods to evaluate flux distributions from point-focus collectors for solar furnace and dish engine applications.  

SciTech Connect

This paper introduces a new analytical 'stretch' function that accurately predicts the flux distribution from on-axis point-focus collectors. Different dish sizes and slope errors can be assessed using this analytical function with a ratio of the focal length to collector diameter fixed at 0.6 to yield the maximum concentration ratio. Results are compared to data, and the stretch function is shown to provide more accurate flux distributions than other analytical methods employing cone optics.

Khalsa, Siri Sahib; Siegel, Nathan Phillip; Ho, Clifford Kuofei

2010-04-01T23:59:59.000Z

43

Evaluation of FTIR-based analytical methods for the analysis of simulated wastes  

SciTech Connect

Three FTIR-based analytical methods that have potential to characterize simulated waste tank materials have been evaluated. These include: (1) fiber optics, (2) modular transfer optic using light guides equipped with non-contact sampling peripherals, and (3) photoacoustic spectroscopy. Pertinent instrumentation and experimental procedures for each method are described. The results show that the near-infrared (NIR) region of the infrared spectrum is the region of choice for the measurement of moisture in waste simulants. Differentiation of the NIR spectrum, as a preprocessing steps, will improve the analytical result. Preliminary data indicate that prominent combination bands of water and the first overtone band of the ferrocyanide stretching vibration may be utilized to measure water and ferrocyanide species simultaneously. Both near-infrared and mid-infrared spectra must be collected, however, to measure ferrocyanide species unambiguously and accurately. For ease of sample handling and the potential for field or waste tank deployment, the FTIR-Fiber Optic method is preferred over the other two methods. Modular transfer optic using light guides and photoacoustic spectroscopy may be used as backup systems and for the validation of the fiber optic data.

Rebagay, T.V.; Cash, R.J.; Dodd, D.A.; Lockrem, L.L.; Meacham, J.E.; Winkelman, W.D.

1994-09-30T23:59:59.000Z

44

A comparison of the point kinetics equations with the QUANDRY analytic nodal diffusion method  

E-Print Network (OSTI)

The point kinetics equations were incorporated into QUANDRY, a nuclear reactor analysis computer program which uses the analytic nodal method to solve the neutron diffusion equation. Both the point kinetics equations, solved using the IMSL MATH/LIBRARY subroutine DIVPAG, and the analytic nodal method were coupled to the WIGL thermal-hydraulic model. The Langenbuch-Maurer-Werner (LMW) model was adapted for use as a test core. The QUANDRY model was used to generate point kinetics parameters. equations. The two neutronics methods were then compared for a range of typical transients encountered in a light water nuclear reactor core. The temperature reactivity coefficients found for the modified LMW core and used with point kinetics were shown to be grossly inaccurate, but the rod worth curve generated using QUANDRY only slightly overestimated the amount of reactivity inserted by rod movement. While the small rod worth errors caused point kinetics to give poor approximations for high rates of reactivity insertions of over one dollar, these large amounts and insertion rates are well above those found during most operational transients in commercial reactors.

Velasquez, Arthur

1993-01-01T23:59:59.000Z

45

Analytical methods for fissionable materials in the nuclear fuel cycle. Covering June 1974--June 1975  

SciTech Connect

Research progress is reported on method development for the dissolution of difficult-to-dissolve materials, the automated analysis of plutonium and uranium, the preparation of plutonium materials for the Safeguard Analytical Laboratory Evaluation (SALE) Program, and the analysis of HTGR fuel and SALE uranium materials. The previously developed Teflon-container, metal-shell apparatus was applied to the dissolution of various nuclear materials. Gas-- solid reactions, mainly using chlorine at elevated temperatures, are promising for separating uranium from refractory compounds. An automated spectrophotometer designed for determining plutonium and uranium was tested successfully. Procedures were developed for this instrument to analyze uranium--plutonium mixtures and the effects of diverse ions upon the analysis of plutonium and uranium were further established. A versatile apparatus was assembled to develop electrotitrimetric methods that will serve as the basis for precise automated determinations of plutonium. Plutonium materials prepared for the Safeguard Analytical Laboratory Evaluation (SALE) Program were plutonium oxide, uranium-- plutonium mixed oxide, and plutonium metal. Improvements were made in the methods used for determining uranium in HTGR fuel materials and SALE uranium materials. Plutonium metal samples were prepared, characterized, and distributed, and half-life measurements were in progress as part of an inter-ERDA- laboratory program to measure accurately the half-lives of long-lived plutonium isotopes. (auth)

Waterbury, G.R.

1975-10-01T23:59:59.000Z

46

Thermodynamic representations of ammonia and isobutane  

DOE Green Energy (OSTI)

Tables of the thermodynamic properties of ammonia and isobutane are presented for the superheated vapor and the saturated liquid and vapor states. The properties were calculated using appropriate analytical pressure-volume-temperature (P-V-T) representations for the fluids in the regions described. The tables cover the approximate range of values of reduced temperatures up to 1.5 and reduced pressure up to 5.

Milora, S. L.; Combs, S. K.

1977-05-01T23:59:59.000Z

47

Corrosion inhibitor for aqueous ammonia absorption system  

DOE Patents (OSTI)

A method of inhibiting corrosion and the formation of hydrogen and thus improving absorption in an ammonia/water absorption refrigeration, air conditioning or heat pump system by maintaining the hydroxyl ion concentration of the aqueous ammonia working fluid within a selected range under anaerobic conditions at temperatures up to 425.degree. F. This hydroxyl ion concentration is maintained by introducing to the aqueous ammonia working fluid an inhibitor in an amount effective to produce a hydroxyl ion concentration corresponding to a normality of the inhibitor relative to the water content ranging from about 0.015 N to about 0.2 N at 25.degree. C. Also, working fluids for inhibiting the corrosion of carbon steel and resulting hydrogen formation and improving absorption in an ammonia/water absorption system under anaerobic conditions at up to 425.degree. F. The working fluids may be aqueous solutions of ammonia and a strong base or aqueous solutions of ammonia, a strong base, and a specified buffer.

Phillips, Benjamin A. (Benton Harbor, MI); Whitlow, Eugene P. (St. Joseph, MI)

1998-09-22T23:59:59.000Z

48

Corrosion inhibitor for aqueous ammonia absorption system  

DOE Patents (OSTI)

A method is described for inhibiting corrosion and the formation of hydrogen and thus improving absorption in an ammonia/water absorption refrigeration, air conditioning or heat pump system by maintaining the hydroxyl ion concentration of the aqueous ammonia working fluid within a selected range under anaerobic conditions at temperatures up to 425 F. This hydroxyl ion concentration is maintained by introducing to the aqueous ammonia working fluid an inhibitor in an amount effective to produce a hydroxyl ion concentration corresponding to a normality of the inhibitor relative to the water content ranging from about 0.015 N to about 0.2 N at 25 C. Also, working fluids for inhibiting the corrosion of carbon steel and resulting hydrogen formation and improving absorption in an ammonia/water absorption system under anaerobic conditions at up to 425 F. The working fluids may be aqueous solutions of ammonia and a strong base or aqueous solutions of ammonia, a strong base, and a specified buffer. 5 figs.

Phillips, B.A.; Whitlow, E.P.

1998-09-22T23:59:59.000Z

49

Evaluation of the use of engineering judgements applied to analytical human reliablity analysis methods (HRA)  

E-Print Network (OSTI)

Due to the scarcity of Human Reliability Analysis (HRA) data, one of the key elements of any HRA analysis is use of engineering judgment. The Electric Power Research Institute (EPRI) HRA Calculator guides the user through the steps of any HRA analysis and allows the user to choose among analytical HRA methods. It applies Accident Sequence Evaluation Program (ASEP), Technique for Human Error Rate Prediction (THERP), the HCR/ORE Correlation, and the Caused Based Decision Tree Method (CBDTM). This program is intended to produce consistent results among different analysts provided that the initial information is similar. Even with this analytical approach, an HRA analyst must still render several judgments. The objective of this study was to evaluate the use of engineering judgment applied to the quantification of post-initiator actions using the HRA Calculator. The Comanche Peak Steam Electric Station (CPSES) Level 1 Probabilistic Risk Assessment (PRA) HRA was used as a database for examples and numerical comparison. Engineering judgments were evaluated in the following ways: 1) Survey of HRA experts. Two surveys were completed, and the participants provided a range of different perspectives on how they individually apply engineering judgment. 2) Numerical comparison among the three methods. 3) Review of CPSES HRA and identification of judgments and the effects on the overall results of the database. The results of this study identified thirteen areas in which an HRA analyst must interpret and render judgments on how to quantify a Human Error Probability (HEP) and recommendations are provided on how current industry practitioners render these same judgments. The areas are: identification and definition of actions to be modeled, identification and definition of actions to be modeled, definition of critical actions, definition of cognitive portion of the action, choice of methodology, stress level, rule-, skill- or knowledge-based designation, timing information, training, procedures, human interactions with hardware, recoveries and dependencies within an action, and review of final HEP.

Kohlhepp, Katherine D.

2005-12-01T23:59:59.000Z

50

Pulsed voltage electrospray ion source and method for preventing analyte electrolysis  

SciTech Connect

An electrospray ion source and method of operation includes the application of pulsed voltage to prevent electrolysis of analytes with a low electrochemical potential. The electrospray ion source can include an emitter, a counter electrode, and a power supply. The emitter can include a liquid conduit, a primary working electrode having a liquid contacting surface, and a spray tip, where the liquid conduit and the working electrode are in liquid communication. The counter electrode can be proximate to, but separated from, the spray tip. The power system can supply voltage to the working electrode in the form of a pulse wave, where the pulse wave oscillates between at least an energized voltage and a relaxation voltage. The relaxation duration of the relaxation voltage can range from 1 millisecond to 35 milliseconds. The pulse duration of the energized voltage can be less than 1 millisecond and the frequency of the pulse wave can range from 30 to 800 Hz.

Kertesz, Vilmos (Knoxville, TN); Van Berkel, Gary (Clinton, TN)

2011-12-27T23:59:59.000Z

51

Analysis of the semianalytical method for matching aquifer influence functions using an analytical model  

E-Print Network (OSTI)

For a heterogeneous aquifer of unknown size and shape, ics. Aquifer Influence Functions (AIF) can be used to model the aquifer pressure behavior from field production and pressure data. Two methods have been used in the past to accomplish this, namely Linear Programming (LP) and the Semianalytical technique. The latter is based on the analytical solution form of a heterogeneous aquifer of any size and shape. The approximating AIF is a continuous function, which is a truncated series of the exact analytical solution. This Semianalytical function is fitted to field data by the use of nonlinear least squares fitting. It has the advantages over the LP method that it is much faster, uses less computer space, and does not require evenly spaced production periods. For the cases in which the OGIP is unknown, a technique was proposed in the past in which the term Relative Error is defined. Several values of OGIP are assumed, and the one that yields the minimum Relative Error is the actual or optimum value of OGIP. Because of the nonlinear nature of the optimization procedure, when the Semianalytical technique is used along with the Relative Error technique, it tends to be caught in the so-called local minima, which lead to the determination of spurious values of the AIF and the optimum OGIP. Both the LP and the Semianalytical techniques have been validated using field data. However, when the latter is used, weird variations of the Relative Error function, and unrealistically low values of the optimum OGIP are observed. A simple analytical model is used in this project. It allows the generation of synthetic data. The objective is to use those as input data to the Semianalytical and Relative Error techniques and determine their effectiveness to determine the AIF and the optimum OGIP which are known in advance. A modification is proposed in the current research to prevent the nonlinear regression from getting caught in the local minima. After this goal is attained, typical features in the normalized Relative Error and allows the determination of the drive mechanism and the OGIP even in gas reservoirs whose histories are so brief that the use of the p/Z technique becomes prohibitive.

Vega, Leonardo

1998-01-01T23:59:59.000Z

52

Analytical Division  

Science Conference Proceedings (OSTI)

Analytical Division Common (non-systematic) Names for Fatty Acids Analytical Division Analytical Chemistry Divisions Analytical Division Common (non-

53

Preventing Theft of Anhydrous Ammonia  

E-Print Network (OSTI)

Anhydrous ammonia is widely used as a fertilizer. The theft of anhydrous ammonia for use in producing illegal drugs is a growing problem. This publication describes how thieves operate and how farmers and agricultural dealers can protect themselves from thieves.

Smith, David

2004-09-16T23:59:59.000Z

54

Energy Efficient Operation of Ammonia Refrigeration Systems  

SciTech Connect

Ammonia refrigeration systems typically offer many energy efficiency opportunities because of their size and complexity. This paper develops a model for simulating single-stage ammonia refrigeration systems, describes common energy saving opportunities, and uses the model to quantify those opportunities. The simulation model uses data that are typically available during site visits to ammonia refrigeration plants and can be calibrated to actual consumption and performance data if available. Annual electricity consumption for a base-case ammonia refrigeration system is simulated. The model is then used to quantify energy savings for six specific energy efficiency opportunities; reduce refrigeration load, increase suction pressure, employ dual suction, decrease minimum head pressure set-point, increase evaporative condenser capacity, and reclaim heat. Methods and considerations for achieving each saving opportunity are discussed. The model captures synergistic effects that result when more than one component or parameter is changed. This methodology represents an effective method to model and quantify common energy saving opportunities in ammonia refrigeration systems. The results indicate the range of savings that might be expected from common energy efficiency opportunities.

Mohammed, Abdul Qayyum [University of Dayton, Ohio; Wenning, Thomas J [ORNL; Sever, Franc [University of Dayton, Ohio; Kissock, Professor Kelly [University of Dayton, Ohio

2013-01-01T23:59:59.000Z

55

Production Systems and Processing Effect on Phytochemicals in Citrus Fruits and Their Analytical and Isolation Methods  

E-Print Network (OSTI)

The emerging scientific evidences on the role of food components in prevention of several chronic diseases are the momentum for shifting from a traditional focus on production to enhancement of nutritional quality. To further understand the role of these phytochemicals this dissertation describes the development of rapid analytical and isolation methods, and the effect of production systems and processing techniques on the levels of phytochemicals in citrus fruits. In the first study, a simultaneous high performance liquid chromatography (HPLC) method for the rapid analysis of amines and organic acids was developed. The simultaneous extraction and analysis of samples provides an economical method for analyzing a large number of samples. In the second study, rapid separation method of potent health beneficial phytochemicals such as polymethoxyflavones from citrus peels using flash chromatography was developed. Using the developed method, five polymethoxyflavones were separated and isolated with high purity in gram level quantity. In the third study, the levels of phytochemicals in organically and conventionally grown lemons and their storage at market simulated conditions were determined. Results suggest that organically produced citrus fruits have higher content of organic acids and flavonoids than conventionally produced. The fourth and fifth study determined the influence of household processing (blending, juicing, hand squeezing techniques) and emerging processing (high pressure processing [HPP], thermal processing) on the phytochemicals content of ‘Rio Red’ grapefruits. Fruits processed by blending had significantly higher levels of flavonoids, furocoumarins and limonin compared to juicing and hand squeezing, while HPP enabled in extending the shelf life of the processed juice without any adverse effects. Therefore, consuming grapefruit juice processed by blending may provide higher levels of health beneficial phytochemicals. The sixth study describes a rapid flash chromatography method for isolation of PMFs and furocoumarins from citrus industrial by products such as peel oil. In the seventh study the developed method was applied to isolate 10 different phytochemicals from an unexplored citrus species, Miaray mandarin (Citrus miaray TAN.). Among them, the 5,7,8,3',4' pentamethoxyflavone was isolated for the first time from the genus Citrus.

Uckoo, Ram 1980-

2012-12-01T23:59:59.000Z

56

A Modified Analytical Method for Simulating Cyclic Operation of Vertical U-Tube Ground-Coupled Heat Pumps  

E-Print Network (OSTI)

A modified analytical model is presented which discretizes the ground-coupled heat exchanger of a ground-coupled heat pump and utilized a separate cylindrical source solution for each element. First law expressions are utilized for each element to derive a set of fully implicit finite difference equations for the pipe wall temperature and the fluid temperature profile inside the ground-coupled heat exchanger. This method entails less computational overhead than methods which utilize numerical solutions inside the soil, and comes closer than previous analytical methods to satisfying the constant heat flux assumption of the original analytical solution. The thermal capacitance effects of the fluid inside the ground-coupled heat exchanger are included to allow proper prediction of the entering water temperature (EWT) profile at start-up. Comparisons with experimental data on EWT, capacity, energy input and cycling are provided.

Dobson, M. K.; O'Neal, D. L.; Aldred, W.

1994-01-01T23:59:59.000Z

57

Exhaust purification with on-board ammonia production  

DOE Patents (OSTI)

A method of ammonia production for a selective catalytic reduction system is provided. The method includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaust passage and cooled to a predetermined temperature range, and at least a portion of the NOx within the exhaust gas stream my be converted into ammonia.

Robel, Wade J. (Peoria, IL); Driscoll, James Joshua (Dunlap, IL); Coleman, Gerald N. (Helpston, GB)

2010-10-12T23:59:59.000Z

58

VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS  

SciTech Connect

Method validation is the process of evaluating whether an analytical method is acceptable for its intended purpose. For pharmaceutical methods, guidelines from the United States Pharmacopeia (USP), International Conference on Harmonisation (ICH), and the United States Food and Drug Administration (USFDA) provide a framework for performing such valications. In general, methods for regulatory compliance must include studies on specificity, linearity, accuracy, precision, range, detection limit, quantitation limit, and robustness. Elements of these guidelines are readily adapted to the issue of validation for beryllium sampling and analysis. This document provides a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers and books reviewed is given in the Appendix. Available validation documents and guides are listed therein; each has a brief description of application and use. In the referenced sources, there are varying approches to validation and varying descriptions of the valication process at different stages in method development. This discussion focuses on valication and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all referenced documents were published in English.

Ekechukwu, A

2009-05-27T23:59:59.000Z

59

Research prioritization using the Analytic Hierarchy Process: basic methods. Volume 1  

SciTech Connect

This report describes a systematic approach for prioritizing research needs and research programs. The approach is formally called the Analytic Hierarchy Process which was developed by T.L. Saaty and is described in several of his texts referenced in the report. The Analytic Hierarchy Process, or AHP for short, has been applied to a wide variety of prioritization problems and has a good record of success as documented in Saaty's texts. The report develops specific guidelines for constructing the hierarchy and for prioritizing the research programs. Specific examples are given to illustrate the steps in the AHP. As part of the work, a computer code has been developed and the use of the code is described. The code allows the prioritizations to be done in a codified and efficient manner; sensitivity and parametric studies can also be straightforwardly performed to gain a better understanding of the prioritization results. Finally, as an important part of the work, an approach is developed which utilizes probabilistic risk analyses (PRAs) to systematically identify and prioritize research needs and research programs. When utilized in an AHP framework, the PRA's which have been performed to date provide a powerful information source for focusing research on those areas most impacting risk and risk uncertainty.

Vesely, W.E.; Shafaghi, A.; Gary, I. Jr.; Rasmuson, D.M.

1983-08-01T23:59:59.000Z

60

Multi-component Removal in Flue Gas by Aqua Ammonia  

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

component Removal in Flue Gas by Aqua Ammonia component Removal in Flue Gas by Aqua Ammonia Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 7,255,842 entitled "Multi-component Removal in Flue Gas by Aqua Ammonia." This patent discloses a method for the removal of potential environmental-impacting compounds from flue gas streams. The method oxidizes some or all of the acid precursors such as sulfur dioxide (SO 2 ) and nitric oxides (NO x ) into sulfur trioxide and nitrogen dioxide, respectively. Following this step, the gas stream is then treated with aqua ammonia or ammonium hydroxide to capture the compounds via chemical absorption through acid-base or neutralization reactions where a fertilizer is formed.

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


61

Approximate analytical solutions for the time-dependent Emden-Fowler-type equations by Variational Homotopy Perturbation Method  

E-Print Network (OSTI)

Abstract. In this paper, variational homotopy perturbation method (VHPM) is used to obtain analytical solution for the time-dependent Emden-Fowler type of equations with singular behavior. The advantage of this work is twofold. Firstly, the VHPM reduces the computational work. Secondly, in comparison with existing techniques, the VHPM is an improvment with regard to its accuracy and rapid convergence. To show the efficiency of the VHPM, several examples are presented. Comparisons with exact solution show that the VHPM is a powerfull method for the solution of linear and nonlinear equations.

Mashallah Matinfar; Maryam Mahdavi

2010-01-01T23:59:59.000Z

62

Analytical Microscopy Group Homepage  

Science Conference Proceedings (OSTI)

... research on autoradiography and nuclear track methods ... and standards that address critical challenges in ... Public Safety and Security in Analytical ...

2012-10-15T23:59:59.000Z

63

VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS  

SciTech Connect

This document proposes to provide a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers, and books reviewed is given in Appendix 1. Available validation documents and guides are listed in the appendix; each has a brief description of application and use. In the referenced sources, there are varying approaches to validation and varying descriptions of validation at different stages in method development. This discussion focuses on validation and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all documents were published in English.

Ekechukwu, A.

2008-12-17T23:59:59.000Z

64

Assessment of Multi-Point Ammonia Measurement Systems  

Science Conference Proceedings (OSTI)

This report summarizes development and testing of in-duct gas sampling probes and a tunable diode laser (TDL) spectroscopic measurement system to determine the concentration of gaseous ammonia (NH3) in coal-fired power plant flue gases. Unlike the much slower conventional wet chemical measurement method, the duct probe and TDL NH3 measurement systems developed in this project enable plant operators to know ammonia slip concentrations in near real-time, allowing them to make appropriate adjustments.

2004-12-08T23:59:59.000Z

65

Adding Environmental Gas Physics to the Semi-Analytic Method for Galaxy Formation: Gravitational Heating  

E-Print Network (OSTI)

We present results of an attempt to include more detailed gas physics motivated from hydrodynamical simulations within semi-analytic models (SAM) of galaxy formation, focusing on the role that environmental effects play. The main difference to previous SAMs is that we include 'gravitational' heating of the intra-cluster medium (ICM) by the net surplus of gravitational potential energy released from gas that has been stripped from infalling satellites. Gravitational heating appears to be an efficient heating source able to prevent cooling in environments corresponding to dark matter halos more massive than $\\sim 10^{13} $M$_{\\odot}$. The energy release by gravitational heating can match that by AGN-feedback in massive galaxies and can exceed it in the most massive ones. However, there is a fundamental difference in the way the two processes operate. Gravitational heating becomes important at late times, when the peak activity of AGNs is already over, and it is very mass dependent. This mass dependency and time behaviour gives the right trend to recover down-sizing in the star-formation rate of massive galaxies. Abridged...

S. Khochfar; J. P. Ostriker

2007-04-18T23:59:59.000Z

66

SRC-1 quarterly technical report, April-June 1981. [Review of analytical methods needed in SRC Demonstration plants  

SciTech Connect

Twenty-three papers involving the design, materials and equipment for the SRC-1 demonstration coal liquefaction plant near Newman, Daviess County, Kentucky, have been entered individually into EDB and ERA. A number of the papers deal also with the analytical methodology required for the plant, including a rather detailed evaluation of the accuracy requirements and careful evaluation of several methods such as gas chromatography, mass spectroscopy, nuclear magnetic resonance, etc. Flexibility of design is stressed so that products can be optimized for the market and charged if the market requires different products. (LTN)

Not Available

1981-10-01T23:59:59.000Z

67

Geothermal Reservoir Assessment Based on Slim Hole Drilling, Volume 1: Analytical Method  

Science Conference Proceedings (OSTI)

EPRI tested and documented slim hole drilling as a geothermal resource evaluation method. The results of this work confirm that lower cost reservoir evaluations can be performed using slim hole methods. On the basis of this report's probabilistic reservoir size estimate, the Kilauea East Rift Zone on the island of Hawaii could support 100-300 MWe of geothermal power capacity.

1994-01-01T23:59:59.000Z

68

Analytical Delta-Four-Stream Doubling–Adding Method for Radiative Transfer Parameterizations  

Science Conference Proceedings (OSTI)

Although single-layer solutions have been obtained for the ?-four-stream discrete ordinates method (DOM) in radiative transfer, a four-stream doubling–adding method (4DA) is lacking, which enables us to calculate the radiative transfer through a ...

Feng Zhang; Zhongping Shen; Jiangnan Li; Xiuji Zhou; Leiming Ma

2013-03-01T23:59:59.000Z

69

Ammonia Monitor Lab Test Verification  

Science Conference Proceedings (OSTI)

Broad-based deployment of postcombustion nitrogen oxide (NOx) control systems, such as selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR), in response to more stringent NOx control mandates has highlighted the need for continuous ammonia monitoring capabilities. EPRI has investigated the potential that tunable diode laser (TDL) spectroscopy can have in the continuous monitoring of ammonia slip. Field measurement programs for validation of TDL-based monitors, however, have yi...

2006-12-21T23:59:59.000Z

70

Ammonia Monitor Lab Test Verification  

Science Conference Proceedings (OSTI)

The increasing use of post combustion NOx control systems such as Selective Catalytic Reduction (SCR) and Selective Non-Catalytic Reduction (SNCR) has heightened the need for reliable continuous monitoring of ammonia slip. This report describes laboratory tests conducted to assess the ability of the Norsk Elektro Optik's (NEO) LaserGas II tunable diode laser monitor to measure ammonia under highly controlled conditions over a typical range of process conditions.

2007-08-14T23:59:59.000Z

71

Ammonia Monitor Lab Test Verification  

Science Conference Proceedings (OSTI)

Broad-based deployment of post-combustion nitrogen oxide (NOX) control systems, such as selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR), in response to more stringent NOX control mandates has highlighted the need for continuous ammonia monitoring capabilities. EPRI has investigated the potential that tunable diode laser (TDL) spectroscopy can have in the continuous monitoring of ammonia slip. Field measurement programs for validation of TDL-based monitors, however, have y...

2007-02-19T23:59:59.000Z

72

An Approximate Analytical Method for Calculating Tides in the Atmosphere of Venus  

Science Conference Proceedings (OSTI)

We describe a semianalytical method for calculating solar tides in an atmosphere whose zonal mean velocity need not be close to solid-body rotation, but which varies slowly in the vertical direction. The scheme is closely related to the ...

Stephen B. Fels

1986-12-01T23:59:59.000Z

73

Analytical Method of Torque Calculation for Interior Permanent Magnet Synchronous Machines  

E-Print Network (OSTI)

method for performing the output torque calculations of an interior permanent magnet synchronous motor circuit, inductance, permanent magnet machine, synchronous motors, torque. I. NOMENCLATURE BFE brushless field excitation IPMSM interior permanent magnet synchronous motor FEA finite element analysis mmf

Tolbert, Leon M.

74

A General Analytic Method for Assessing Sensitivity to Bias of Performance Measures for Dichotomous Forecasts  

Science Conference Proceedings (OSTI)

Performance measures computed from the 2 × 2 contingency table of outcomes for dichotomous forecasts are sensitive to bias. The method presented here evaluates how the probability of detection (POD) must change as bias changes so that a ...

Keith F. Brill

2009-02-01T23:59:59.000Z

75

Hanford environmental analytical methods (methods as of March 1990). Appendix A3-O and Appendix A3-I  

Science Conference Proceedings (OSTI)

Information is provided on the techniques employed towards the chemical analysis of volatile, semi-volatile matter, pesticides and PCB`s at the Hanford Reservation. Sample preparation methods are included.

Goheen, S.D.; McCulloch, M.; Daniel, J.L.

1993-05-01T23:59:59.000Z

76

A hybrid analytical-heuristic method for calibrating land-use change models  

Science Conference Proceedings (OSTI)

Spatially explicit land-use models simulate the patterns of change on the landscape in response to coupled human-ecological dynamics. As these models become more complex involving larger than ever data sets, the need to improve calibration techniques ... Keywords: Amazon deforestation, Dinamica EGO, Genetic algorithm, Map comparison method, Spatial transition probability

Britaldo Soares-Filho; Hermann Rodrigues; Marco Follador

2013-05-01T23:59:59.000Z

77

Development of Analytical and Computational Methods for the Strategic Power Infrastructure Defense (SPID) System: EPRI/DoD Complex I nteractive Networks/Systems Initiative: Second Annual Report  

Science Conference Proceedings (OSTI)

This report details the second-year research accomplishments for one of six research consortia established under the Complex Interactive Networks/Systems Initiative. This particular document discusses analytical and computational methods for the Strategic Power Infrastructure Defense (SPID) System.

2001-06-21T23:59:59.000Z

78

MEASUREMENT OF AMMONIA RELEASE FROM SALTSTONE  

SciTech Connect

SRNL was requested by WSRC Waste Solidification Engineering to characterize the release of ammonia from saltstone curing at 95 C by performing experimental testing. These tests were performed with an MCU-type Tank 50H salt simulant containing 0, 50, and 200 mg/L ammonia. The testing program showed that above saltstone made from the 200 mg/L ammonia simulant, the vapor space ammonia concentration was about 2.7 mg/L vapor at 95 C. An upper 95% confidence value for this concentration was found to be 3.9 mg/L. Testing also showed that ammonia was chemically generated from curing saltstone at 95 C; the amount of ammonia generated was estimated to be equivalent to 121 mg/L additional ammonia in the salt solution feed. Even with chemical generation, the ammonia release from saltstone was found to be lower than its release from salt solution only with 200 mg/L ammonia.

Zamecnik, J; Alex Cozzi, A

2009-01-15T23:59:59.000Z

79

Analytical Methods for Malachite Green : Completion Report : Malachite Green Analysis in Water.  

DOE Green Energy (OSTI)

Malachite green is a known teratogen and therefore its use is limited to nonfood fish under an Investigational New Animal Drug permit (INAD), number 2573. Although a charcoal adsorption column was developed to remove malachite green from hatchery water, INAD compliance requires that the malachite green residue concentrations in any effluent from hatcheries using the chemical be quantified. Therefore, we developed a method for the analysis of malachite green residues in water. Enrichment of the residues of malachite green in water on a diol column followed by High Performance Liquid Chromatographic (HPLC) analysis gives a minimum sensitivity of less than 10 ppb for the chemical. When combined with post-column oxidation using a lead oxide post-column reactor, the procedure can be used for the simultaneous analysis of malachite green in its leuco form, a decomposition product of the dye, as well as its chromatic form. Recovery of the leuco form is pH dependent and water samples should be adjusted to pH 6 to optimize recovery of this form. Water samples spiked with malachite green were concentrated on a diol column followed by elution with 0.05 M p-toluene sulfonic acid in methanol. The methanol elutes were analyzed by HPLC. Pond water samples spiked with malachite green and leuco malachite green yielded average recoveries of 95.4% for malachite green and 57.3% for leuco malachite green. Tap water samples spiked with the carbinol form of malachite green gave average recoveries of 98.6%. The method is very sensitive and is capable of detecting malachite green residues in water at less than 10 ppb. Fish culturists, who cannot find an effective replacement for malachite green, can utilize the method to ensure that their effluents comply with INAD regulations. 13 refs., 2 figs., 7 tabs.

Allen, John L.; Gofus, Jane E.; Meinertz, Jeffery R.

1991-06-01T23:59:59.000Z

80

A COMPRESSED SENSING METHOD WITH ANALYTICAL RESULTS FOR LIDAR FEATURE CLASSIFICATION  

Science Conference Proceedings (OSTI)

We present an innovative way to autonomously classify LiDAR points into bare earth, building, vegetation, and other categories. One desirable product of LiDAR data is the automatic classification of the points in the scene. Our algorithm automatically classifies scene points using Compressed Sensing Methods via Orthogonal Matching Pursuit algorithms utilizing a generalized K-Means clustering algorithm to extract buildings and foliage from a Digital Surface Models (DSM). This technology reduces manual editing while being cost effective for large scale automated global scene modeling. Quantitative analyses are provided using Receiver Operating Characteristics (ROC) curves to show Probability of Detection and False Alarm of buildings vs. vegetation classification. Histograms are shown with sample size metrics. Our inpainting algorithms then fill the voids where buildings and vegetation were removed, utilizing Computational Fluid Dynamics (CFD) techniques and Partial Differential Equations (PDE) to create an accurate Digital Terrain Model (DTM) [6]. Inpainting preserves building height contour consistency and edge sharpness of identified inpainted regions. Qualitative results illustrate other benefits such as Terrain Inpainting s unique ability to minimize or eliminate undesirable terrain data artifacts. Keywords: Compressed Sensing, Sparsity, Data Dictionary, LiDAR, ROC, K-Means, Clustering, K-SVD, Orthogonal Matching Pursuit

Allen, Josef D [ORNL

2011-01-01T23:59:59.000Z

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


81

Ammonia-treated phosphate glasses useful for sealing to metals  

DOE Patents (OSTI)

A method of improving surface-dependent properties of phosphate glass such as durability and wear resistance without significantly affecting its thermal expansion coefficient is provided which comprises annealing the glass in a dry ammonia atmosphere at temperatures approximating the transition temperature of the glass. The ammonia annealing treatment of the present invention is carried out for a time sufficient to allow incorporation of a thin layer of nitrogen into the surface of the phosphate glass, and the treatment improves the durability of the glass without the reduction in the thermal expansion coefficient that has restricted the effectiveness of prior ammonia treatments. The improved phosphate glass resulting from this method is superior in wear resistance, yet maintains suitable thermal expansion properties so that it may be used effectively in a variety of applications requiring hermetic glass-metal seals.

Brow, R.K.; Day, D.E.

1990-12-31T23:59:59.000Z

82

Assessment of research and development (R and D) needs in ammonia safety and environmental control  

DOE Green Energy (OSTI)

This report characterizes the ammonia industry operations, reviews current knowledge of ammonia release and subsequent impacts, summarizes the status of release prevention and control methods and identify research and development needs for safety and environmental control. Appendices include: accidental spills and human exposure; adiabatic mixing of liquid nitrogen and air; fire and explosion hazards; and environmental impact rating tables. (PSB)

Brenchley, D.L.; Athey, G.F.; Bomelburg, H.J.

1981-09-01T23:59:59.000Z

83

Ammonia Monitor Lab Test Verification  

Science Conference Proceedings (OSTI)

The broad-based deployment of post-combustion NOx control systems, such as selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR), in response to more stringent NOx control mandates has highlighted the need for continuous ammonia monitoring capabilities. The Electric Power Research Institute (EPRI) has been investigating the potential that tunable diode laser spectroscopy (TDLS) can have ...

2012-08-29T23:59:59.000Z

84

Hydrogen production using ammonia borane  

SciTech Connect

Hydrogen ("H.sub.2") is produced when ammonia borane reacts with a catalyst complex of the formula L.sub.nM-X wherein M is a base metal such as iron, X is an anionic nitrogen- or phosphorus-based ligand or hydride, and L is a neutral ancillary ligand that is a neutral monodentate or polydentate ligand.

Hamilton, Charles W; Baker, R. Thomas; Semelsberger, Troy A; Shrestha, Roshan P

2013-12-24T23:59:59.000Z

85

Method of and apparatus for determining the similarity of a biological analyte from a model constructed from known biological fluids  

DOE Patents (OSTI)

The characteristics of a biological fluid sample having an analyte are determined from a model constructed from plural known biological fluid samples. The model is a function of the concentration of materials in the known fluid samples as a function of absorption of wideband infrared energy. The wideband infrared energy is coupled to the analyte containing sample so there is differential absorption of the infrared energy as a function of the wavelength of the wideband infrared energy incident on the analyte containing sample. The differential absorption causes intensity variations of the infrared energy incident on the analyte containing sample as a function of sample wavelength of the energy, and concentration of the unknown analyte is determined from the thus-derived intensity variations of the infrared energy as a function of wavelength from the model absorption versus wavelength function.

Robinson, Mark R. (Albuquerque, NM); Ward, Kenneth J. (Albuquerque, NM); Eaton, Robert P. (Albuquerque, NM); Haaland, David M. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

86

Ammonia Monitor Lab Test Verification  

Science Conference Proceedings (OSTI)

This report provides results from performance tests of a Laser Tech Group (LTG) Lightwise tunable diode laser (TDL) monitor at the University of California–Riverside's laboratory test facility. More stringent nitrogen oxide(s) (NOx)-control mandates for coal-fired boilers have engendered broad-based deployment of post-combustion NOx control systems. It is possible to increase NOx reductions early in the catalyst life cycle through increased reagent injection, with a concomitant increase in ammonia (NH3) ...

2009-07-13T23:59:59.000Z

87

Method and apparatus for processing a test sample to concentrate an analyte in the sample from a solvent in the sample  

DOE Patents (OSTI)

A method of processing a test sample to concentrate an analyte in the sample from a solvent in the sample includes: a) boiling the test sample containing the analyte and solvent in a boiling chamber to a temperature greater than or equal to the solvent boiling temperature and less than the analyte boiling temperature to form a rising sample vapor mixture; b) passing the sample vapor mixture from the boiling chamber to an elongated primary separation tube, the separation tube having internal sidewalls and a longitudinal axis, the longitudinal axis being angled between vertical and horizontal and thus having an upper region and a lower region; c) collecting the physically transported liquid analyte on the internal sidewalls of the separation tube; and d) flowing the collected analyte along the angled internal sidewalls of the separation tube to and pass the separation tube lower region. The invention also includes passing a turbulence inducing wave through a vapor mixture to separate physically transported liquid second material from vaporized first material. Apparatus are also disclosed for effecting separations. Further disclosed is a fluidically powered liquid test sample withdrawal apparatus for withdrawing a liquid test sample from a test sample container and for cleaning the test sample container.

Turner, Terry D. (Idaho Falls, ID); Beller, Laurence S. (Idaho Falls, ID); Clark, Michael L. (Menan, ID); Klingler, Kerry M. (Idaho Falls, ID)

1997-01-01T23:59:59.000Z

88

Method and apparatus for processing a test sample to concentrate an analyte in the sample from a solvent in the sample  

DOE Patents (OSTI)

A method of processing a test sample to concentrate an analyte in the sample from a solvent in the sample includes: (a) boiling the test sample containing the analyte and solvent in a boiling chamber to a temperature greater than or equal to the solvent boiling temperature and less than the analyte boiling temperature to form a rising sample vapor mixture; (b) passing the sample vapor mixture from the boiling chamber to an elongated primary separation tube, the separation tube having internal sidewalls and a longitudinal axis, the longitudinal axis being angled between vertical and horizontal and thus having an upper region and a lower region; (c) collecting the physically transported liquid analyte on the internal sidewalls of the separation tube; and (d) flowing the collected analyte along the angled internal sidewalls of the separation tube to and pass the separation tube lower region. The invention also includes passing a turbulence inducing wave through a vapor mixture to separate physically transported liquid second material from vaporized first material. Apparatus is also disclosed for effecting separations. Further disclosed is a fluidically powered liquid test sample withdrawal apparatus for withdrawing a liquid test sample from a test sample container and for cleaning the test sample container. 8 figs.

Turner, T.D.; Beller, L.S.; Clark, M.L.; Klingler, K.M.

1997-10-14T23:59:59.000Z

89

Nuclear Analytical Chemistry Portal  

Science Conference Proceedings (OSTI)

NIST Home > Nuclear Analytical Chemistry Portal. Nuclear Analytical Chemistry Portal. ... see all Nuclear Analytical Chemistry news ... ...

2010-08-02T23:59:59.000Z

90

Analytical Method for the Detection of Ozone Depleting Chemicals (ODC) in Commercial Products Using a Gas Chromatograph with an Electron Capture Detector (GC-ECD)  

SciTech Connect

This document describes an analytical procedure that was developed for the trace level detection of residual ozone depleting chemicals (ODC) associated with the manufacture of selected commercial products. To ensure the United States meets it obligation under the Montreal Protocol, Congress enacted legislation in 1989 to impose an excise tax on electronic goods imported into the United States that were produced with banned chemicals. This procedure was developed to technically determine if residual ODC chemicals could be detected on electronic circuit boards. The analytical method utilizes a “purge and trap” technique followed by gas chromatography with electron capture detection to capture and analyze the volatile chemicals associated with the matrix. The method describes the procedure, the hardware, operating conditions, calibration, and quality control measures in sufficient detail to allow the capability to be replicated. This document corresponds to internal Standard Operating Procedure (SOP) EFL-130A, Rev 4.

Lee, Richard N.; Dockendorff, Brian P.; Wright, Bob W.

2008-08-01T23:59:59.000Z

91

Development of A Cryogenic Drift Cell Spectrometer and Methods for Improving the Analytical Figures of Merit for Ion Mobility-Mass Spectrometry Analysis  

E-Print Network (OSTI)

A cryogenic (325-80 K) ion mobility-mass spectrometer was designed and constructed in order to improve the analytical figures-of-merit for the chemical analysis of small mass analytes using ion mobility-mass spectrometry. The instrument incorporates an electron ionization source, a quadrupole mass spectrometer, a uniform field drift cell spectrometer encased in a cryogenic envelope, and an orthogonal geometry time-of-flight mass spectrometer. The analytical benefits of low temperature ion mobility are discussed in terms of enhanced separation ability, ion selectivity and sensitivity. The distinction between resolving power and resolution for ion mobility is also discussed. Detailed experimental designs and rationales are provided for each instrument component. Tuning and calibration data and methods are also provided for the technique. Proof-of-concept experiments for an array of analytes including rare gases (argon, krypton, xenon), hydrocarbons (acetone, ethylene glycol, methanol), and halides (carbon tetrachloride) are provided in order to demonstrate the advantages and limitations of the instrument for obtaining analytically useful information. Trendline partitioning of small analyte ions based on chemical composition is demonstrated as a novel chemical analysis method. The utility of mobility-mass analysis for mass selected ions is also demonstrated, particularly for probing the ion chemistry which occurs in the drift tube for small mass ions. As a final demonstration of the separation abilities of the instrument, the electronic states of chromium and titanium (ground and excited) are separated with low temperature. The transition metal electronic state separations demonstrated here are at the highest resolution ever obtained for ion mobility methods. The electronic conformational mass isomers of methanol (conventional and distonic) are also partially separated at low temperature. Various drift gases (helium, neon, and argon) are explored for the methanol system in order to probe stronger ion-neutral interaction potentials and effectuate higher resolution separations of the two isomeric ions. Finally, two versatile ion source designs and a method for axially focusing ions at low pressure (1-10 torr) using electrostatic fields is presented along with some preliminary work on the ion sources.

May, Jody C.

2009-08-01T23:59:59.000Z

92

Working Group Review of Sampling and Analytical Methods for Amines and Amine Degradation Products in Post-Combustion Carbon Capture Technologies  

Science Conference Proceedings (OSTI)

The use of amine solvents in post-combustion carbon capture (PCCC) facilities has increased over the last several years, and subsequently, a clear understanding of the potential human and environmental impacts of those solvents has become increasingly more important. A critical need identified by many researchers in the PCCC and environmental chemistry communities is to standardize stack sampling and analytical methods for amines and their degradation products. This led to the Electric Power ...

2012-12-31T23:59:59.000Z

93

Analytical Division  

Science Conference Proceedings (OSTI)

The Analytical Division is comprised of members with a variety of interests, including: chromatography (liquid, gas-liquid, high-performance liquid column, thin-layer, and supercritical-fluid), electrophoresis, spectroscopy (UV, IR, NMR, light-scattering)

94

ANALYTIC DESCRIPTION OF THE ROSSITER-MCLAUGHLIN EFFECT FOR TRANSITING EXOPLANETS: CROSS-CORRELATION METHOD AND COMPARISON WITH SIMULATED DATA  

Science Conference Proceedings (OSTI)

We obtain analytical expressions for the velocity anomaly due to the Rossiter-McLaughlin (RM) effect, for the case when the anomalous radial velocity is obtained by cross-correlation with a stellar template spectrum. In the limit of vanishing width of the stellar absorption lines, our result reduces to the formula derived by Ohta et al., which is based on the first moment of distorted stellar lines. Our new formula contains a term dependent on the stellar line width, which becomes important when rotational line broadening is appreciable. We generate mock transit spectra for four existing exoplanetary systems (HD 17156, TrES-2, TrES-4, and HD 209458) following the procedure of Winn et al., and find that the new formula is in better agreement with the velocity anomaly extracted from the mock data. Thus, our result provides a more reliable analytical description of the velocity anomaly due to the RM effect, and explains the previously observed dependence of the velocity anomaly on the stellar rotation velocity.

Hirano, Teruyuki; Suto, Yasushi; Taruya, Atsushi [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan); Narita, Norio [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Sato, Bun'ei [Global Edge Institute, Tokyo Institute of Technology, 2-21-1 Ookayama, Meguro, Tokyo 152-8550 (Japan); Johnson, John Asher [Department of Astrophysics, California Institute of Technology, MC 249-17 Pasadena, CA 91125 (United States); Winn, Joshua N., E-mail: hirano@utap.phys.s.u-tokyo.ac.j [Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)

2010-01-20T23:59:59.000Z

95

AOCS Analytical Guidelines Am 1a-09  

Science Conference Proceedings (OSTI)

Near Infrared Spectroscopy Instrument Management and Prediction Model Development. Am 1a-09. AOCS Analytical Guidelines Am 1a-09 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

96

Adsorption analysis of ammonia in an aqueous solution  

SciTech Connect

An analysis is carried out to determine the effects of the diffusional resistance on the rate of the adsorption of ammonia in an aqueous solution. A performance prediction model is developed to calculate the local rate of heat and mass transfer, including physical and thermodynamic property calculations of the mixture. An algorithm is developed for calculating the interfacial conditions. The local heat- and mass-transfer calculation is then incorporated into the performance prediction method for adsorption for a given geometry.

Arman, B.; Panchal, C.B.

1993-08-01T23:59:59.000Z

97

ANALYTICAL METHOD FOR MEASURING TOTAL PROTIUM AND TOTAL DEUTERIUM IN A GAS MIXTURE CONTAINING H2, D2,AND HD VIA GAS CHAROMATOGRAPHY  

DOE Green Energy (OSTI)

The most common analytical method of identifying and quantifying non-radioactive isotopic species of hydrogen is mass spectrometry. A low mass, high resolution mass spectrometer with adequate sensitivity and stability to identify and quantify hydrogen isotopes in the low ppm range is an expensive, complex instrument. A new analytical technique has been developed that measures both total protium (H) and total deuterium (D) in a gas mixture containing H{sub 2}, D{sub 2}, and HD using an inexpensive micro gas chromatograph (GC) with two molecular sieve columns. One column uses D{sub 2} as the carrier gas and the other uses H{sub 2} as the carrier gas. Laboratory tests have shown that when used in this configuration the GC can measure both total protium and total deuterium each with a detection and quantification limit of less than 20 ppm.

Sessions, H

2007-08-07T23:59:59.000Z

98

Analytical Microscopy  

DOE Green Energy (OSTI)

In the Analytical Microscopy group, within the National Center for Photovoltaic's Measurements and Characterization Division, we combine two complementary areas of analytical microscopy--electron microscopy and proximal-probe techniques--and use a variety of state-of-the-art imaging and analytical tools. We also design and build custom instrumentation and develop novel techniques that provide unique capabilities for studying materials and devices. In our work, we collaborate with you to solve materials- and device-related R&D problems. This sheet summarizes the uses and features of four major tools: transmission electron microscopy, scanning electron microscopy, the dual-beam focused-ion-beam workstation, and scanning probe microscopy.

Not Available

2006-06-01T23:59:59.000Z

99

AN ANALYTIC METHOD TO DETERMINE HABITABLE ZONES FOR S-TYPE PLANETARY ORBITS IN BINARY STAR SYSTEMS  

SciTech Connect

With more and more extrasolar planets discovered in and around binary star systems, questions concerning the determination of the classical habitable zone have arisen. Do the radiative and gravitational perturbations of the second star influence the extent of the habitable zone significantly, or is it sufficient to consider the host star only? In this article, we investigate the implications of stellar companions with different spectral types on the insolation a terrestrial planet receives orbiting a Sun-like primary. We present time-independent analytical estimates and compare them to insolation statistics gained via high precision numerical orbit calculations. Results suggest a strong dependence of permanent habitability on the binary's eccentricity, as well as a possible extension of habitable zones toward the secondary in close binary systems.

Eggl, Siegfried; Pilat-Lohinger, Elke; Gyergyovits, Markus; Funk, Barbara [Institute for Astronomy, University of Vienna, Tuerkenschanzstr. 17, A-1180 Vienna (Austria); Georgakarakos, Nikolaos, E-mail: siegfried.eggl@univie.ac.at, E-mail: elke.pilat-lohinger@univie.ac.at [128 V. Olgas str., Thessaloniki 546 45 (Greece)

2012-06-10T23:59:59.000Z

100

Method to Produce Highly Digestible, Pretreated ...  

Method to Produce Highly Digestible, Pretreated Lignocellulosic Biomass Using Anhydrous Liquid Ammonia Inventors: Shishir Chundawat, Leonardo Sousa, ...

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


101

Analytical Dashboards  

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

Analytical Dashboards facilitates easy access to essential high-level corporate-wide safety performance information through key metrics, charts, graphs, and text bullets to provide both managers and operations personnel with a current perspective on safety performance within the Department.

102

Process for reducing aqueous nitrate to ammonia  

DOE Patents (OSTI)

Powdered aluminum is added to a nitrate-containing alkaline, aqueous solution to reduce the nitrate and/or nitrite to ammonia and co-produce a sinterable ceramic product.

Mattus, Alfred J. (Oak Ridge, TN)

1993-01-01T23:59:59.000Z

103

Process for reducing aqueous nitrate to ammonia  

DOE Patents (OSTI)

Powdered aluminum is added to a nitrate-containing alkaline, aqueous solution to reduce the nitrate and/or nitrite to ammonia and co-produce a sinterable ceramic product. 3 figures.

Mattus, A.J.

1993-11-30T23:59:59.000Z

104

Estimating Ammonia Emissions from Stationary Power Plants  

Science Conference Proceedings (OSTI)

This report provides a methodology that can be used to estimate ammonia releases from fossil fuel-fired, electrical power generation facilities for the purpose of reporting under the U.S. Environmental Protection Agencys Toxic Release Inventory (TRI) program.

2009-04-15T23:59:59.000Z

105

Ammonia chemistry in a flameless jet  

Science Conference Proceedings (OSTI)

In this paper, the nitrogen chemistry in an ammonia (NH{sub 3}) doped flameless jet is investigated using a kinetic reactor network model. The reactor network model is used to explain the main differences in ammonia chemistry for methane (CH{sub 4})-containing fuels and methane-free fuels. The chemical pathways of nitrogen oxides (NO{sub x}) formation and destruction are identified using rate-of-production analysis. The results show that in the case of natural gas, ammonia reacts relatively late at fuel lean condition leading to high NO{sub x} emissions. In the pre-ignition zone, the ammonia chemistry is blocked due to the absence of free radicals which are consumed by methane-methyl radical (CH{sub 3}) conversion. In the case of methane-free gas, the ammonia reacted very rapidly and complete decomposition was reached in the fuel rich region of the jet. In this case the necessary radicals for the ammonia conversion are generated from hydrogen (H{sub 2}) oxidation. (author)

Zieba, Mariusz; Schuster, Anja; Scheffknecht, Guenter [Institute of Process Engineering and Power Plant Technology, University of Stuttgart, Pfaffenwaldring 23, D-70569 Stuttgart (Germany); Brink, Anders; Hupa, Mikko [Process Chemistry Centre, Aabo Akademi University, Biskopsgatan 8, 20500 Aabo (Finland)

2009-10-15T23:59:59.000Z

106

Analytical Dashboards  

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

Analytical Dashboards Analytical Dashboards Public Final Occurrence Reports: Searchable information on DOE's Final Occurrence Reports since 2009, available to the public and updated daily. Computerized Accident Incident Reporting System (CAIRS) - Injury and Illness Dashboard: The Injury and Illness Dashboard is a tool that allows users to easily explore DOE occupational safety and health injury and illness information. Its features include: Graphical and tabular depictions of injury and illness information Calendar year and fiscal year incidence rates for DOE and DOE contractor total recordable cases (TRC) of injuries and illnesses and cases involving days away from work or on job transfer or restriction (DART) due to injury or illness Incidence rates of injuries and illnesses by DOE program

107

DEVELOPMENT OF ANALYTICAL METHODS FOR THE QUANTIFICATION OF THE CHEMICAL FORMS OF MERCURY AND OTHER TARGET POLLUTANTS IN COAL-FIRED BOILER FLUE GAS  

Science Conference Proceedings (OSTI)

Since approximately 55% of the electrical power produced in the U. S. is generated by coal-based power utility plants, there is serious concern about the massive amounts of coal combustion products emitted into the atmosphere annually. Furthermore, Title III of the 1990 Clean Air Act Amendments (CAAA) requires the measurement and inventory of a possible 189 hazardous air pollutants (HAPs) from any stationary source producing more than 10 tons per year of any one pollutant or more than 25 tons per year of total pollutants. Although power utilities are not presently included on the list of source categories, the CAAA requires the U. S. Environmental Protection Agency to carry out a study of emissions from electricity generation using fossil fuels. Since many of these HAPs are known to be present in coal derived flue gas, coal-fired electric power utilities may be subject to regulation following these studies if Congress considers it necessary. In a cooperative effort with the U. S. Environmental Protection Agency (EPA), the U. S. Department of Energy (DOE) through its Federal Energy Technology Center (FETC) initiated such a study in 1991. DOE-FETC commissioned five primary contractors to conduct emission studies at eight different coal-fired electric utilities. The eight sites represented a cross section of feed coal type, boiler designs, and particulate and gaseous pollutant control technologies. The major goal of these studies was to determine the sampling and analytical methodologies that could be used efficiently to perform these emission tests while producing representative and reliable emission data. The successful methodology could then be recommended to the EPA for use in compliance testing in the event the regulation of air toxic emissions from coal-fired power plants is implemented. A secondary purpose of the testing was to determine the effectiveness of the control technologies in reducing target hazardous air pollutants. Advanced Technology Systems, Inc. (ATS) as a secondary DOE contractor on this project, assessed the sampling and analytical plans and the emission reports of the five primary contractors to determine how successful the contractors were in satisfying their defined objectives. ATS identified difficulties and inconsistencies in a number of sampling and analytical methodologies in these studies. In particular there was uncertainty as to the validity of the sampling and analytical methods used to differentiate the chemical forms of mercury observed in coal flue gas. Considering the differences in the mercury species with regard to human toxicity, the rate of transport through the ecosystem and the design variations in possible emission control schemes, DOE sought an accurate and reliable means to identify and quantify the various mercury compounds emitted by coal-fired utility boilers. ATS, as a contractor for DOE, completed both bench- and pilot-scale studies on various mercury speciation methods. The final validation of the modified Ontario-Hydro Method, its acceptance by DOE and submission of the method for adoption by ASTM was a direct result of these studies carried out in collaboration with the University of North Dakota's Energy and Environmental Research Center (UNDEERC). This report presents the results from studies carried out at ATS in the development of analytical methods to identify and quantify various chemical species, particularly those of mercury, in coal derived flue gas. Laboratory- and pilot-scale studies, not only on mercury species, but also on other inorganics and organics present in coal combustion flue gas are reported.

Terence J. McManus, Ph.D.

1999-06-30T23:59:59.000Z

108

SRL online Analytical Development  

DOE Green Energy (OSTI)

The Savannah River Site is operated by the Westinghouse Savannah River Co. for the Department of Energy to produce special nuclear materials for defense. R&D support for site programs is provided by the Savannah River Laboratory, which I represent. The site is known primarily for its nuclear reactors, but actually three fourths of the efforts at the site are devoted to fuel/target fabrication, fuel/target reprocessing, and waste management. All of these operations rely heavily on chemical processes. The site is therefore a large chemical plant. There are then many potential applications for process analytical chemistry at SRS. The Savannah River Laboratory (SRL) has an Analytical Development Section of roughly 65 personnel that perform analyses for R&D efforts at the lab, act as backup to the site Analytical Laboratories Department and develop analytical methods and instruments. I manage a subgroup of the Analytical Development Section called the Process Control & Analyzer Development Group. The Prime mission of this group is to develop online/at-line analytical systems for site applications.

Jenkins, C.W.

1991-12-31T23:59:59.000Z

109

SRL online Analytical Development  

DOE Green Energy (OSTI)

The Savannah River Site is operated by the Westinghouse Savannah River Co. for the Department of Energy to produce special nuclear materials for defense. R D support for site programs is provided by the Savannah River Laboratory, which I represent. The site is known primarily for its nuclear reactors, but actually three fourths of the efforts at the site are devoted to fuel/target fabrication, fuel/target reprocessing, and waste management. All of these operations rely heavily on chemical processes. The site is therefore a large chemical plant. There are then many potential applications for process analytical chemistry at SRS. The Savannah River Laboratory (SRL) has an Analytical Development Section of roughly 65 personnel that perform analyses for R D efforts at the lab, act as backup to the site Analytical Laboratories Department and develop analytical methods and instruments. I manage a subgroup of the Analytical Development Section called the Process Control Analyzer Development Group. The Prime mission of this group is to develop online/at-line analytical systems for site applications.

Jenkins, C.W.

1991-01-01T23:59:59.000Z

110

Explanatory Business Analytics in OLAP  

Science Conference Proceedings (OSTI)

In this paper the authors describe a method to integrate explanatory business analytics in OLAP information systems. This method supports the discovery of exceptional values in OLAP data and the explanation of such values by giving their underlying causes. ... Keywords: Business Analytics, Exception Reporting, Explanation, OLAP, Variance Analysis

Emiel Caron, Hennie Daniels

2013-07-01T23:59:59.000Z

111

The Ammonia?Hydrogen System under Pressure  

Science Conference Proceedings (OSTI)

Binary mixtures of hydrogen and ammonia were compressed in diamond anvil cells to 15 GPa at room temperature over a range of compositions. The phase behavior was characterized using optical microscopy, Raman spectroscopy, and synchrotron X-ray diffraction. Below 1.2 GPa we observed two-phase coexistence between liquid ammonia and fluid hydrogen phases with limited solubility of hydrogen within the ammonia-rich phase. Complete immiscibility was observed subsequent to the freezing of ammonia phase III at 1.2 GPa, although hydrogen may become metastably trapped within the disordered face-centered-cubic lattice upon rapid solidification. For all compositions studied, the phase III to phase IV transition of ammonia occurred at {approx}3.8 GPa and hydrogen solidified at {approx}5.5 GPa, transition pressures equivalent to those observed for the pure components. A P-x phase diagram for the NH{sub 3}-H{sub 2} system is proposed on the basis of these observations with implications for planetary ices, molecular compound formation, and possible hydrogen storage materials.

Chidester, Bethany A.; Strobel, Timothy A. (CIW)

2012-01-20T23:59:59.000Z

112

AOCS Analytical Guidelines S 3-64  

Science Conference Proceedings (OSTI)

Methods for the Testing of Epoxidized Oils AOCS Analytical Guidelines S 3-64 Methods Downloads Methods Downloads AOCS DEFINITION Not applicable  SCOPE

113

Ammonia Results Review for Retained Gas Sampling  

SciTech Connect

This report was prepared as part of a task supporting the deployment of the retained gas sampler (RGS) system in Flammable Gas Watch List Tanks. The emphasis of this report is on presenting supplemental information about the ammonia measurements resulting from retained gas sampling of Tanks 241-AW-101, A-101, AN-105, AN-104, AN-103, U-103, S-106, BY-101, BY-109, SX-106, AX-101, S-102, S-111, U-109, and SY-101. This information provides a better understanding of the accuracy of past RGS ammonia measurements, which will assist in determining flammable and toxicological hazards.

Mahoney, Lenna A.

2000-09-20T23:59:59.000Z

114

Trends in On-Road Vehicle Emissions of Ammonia  

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

Trends in On-Road Vehicle Emissions of Ammonia Trends in On-Road Vehicle Emissions of Ammonia Title Trends in On-Road Vehicle Emissions of Ammonia Publication Type Journal Article Year of Publication 2008 Authors Kean, Andrew J., David Littlejohn, George Ban-Weiss, Robert A. Harley, Thomas W. Kirchstetter, and Melissa M. Lunden Journal Atmospheric Environment Abstract Motor vehicle emissions of ammonia have been measured at a California highway tunnel in the San Francisco Bay area. Between 1999 and 2006, light-duty vehicle ammonia emissions decreased by 38 ± 6%, from 640 ± 40 to 400 ± 20 mg kg-1. High time resolution measurements of ammonia made in summer 2001 at the same location indicate a minimum in ammonia emissions correlated with slower-speed driving conditions. Variations in ammonia emission rates track changes in carbon monoxide more closely than changes in nitrogen oxides, especially during later evening hours when traffic speeds are highest. Analysis of remote sensing data of Burgard et al. (Environ Sci. Technol. 2006, 40, 7018-7022) indicates relationships between ammonia and vehicle model year, nitrogen oxides, and carbon monoxide. Ammonia emission rates from diesel trucks were difficult to measure in the tunnel setting due to the large contribution to ammonia concentrations in a mixed-traffic bore that were assigned to light-duty vehicle emissions. Nevertheless, it is clear that heavy-duty diesel trucks are a minor source of ammonia emissions compared to light-duty gasoline vehicles.

115

Removal of ammonia from tarry water using a tubular furnace  

SciTech Connect

An ammonia-processing system without the use of live steam from OAO Alchevskkoks plant's supply network is considered. Steam obtained from the wastewater that leaves the ammonia column is used to process the excess tarry water, with the release of volatile ammonia.

V.V. Grabko; V.A. Kofanova; V.M. Li; M.A. Solov'ev [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

116

Radiation chemistry in ammonia-water ices  

SciTech Connect

We studied the effects of 100 keV proton irradiation on films of ammonia-water mixtures between 20 and 120 K. Irradiation destroys ammonia, leading to the formation and trapping of H{sub 2}, N{sub 2}, NO, and N{sub 2}O, the formation of cavities containing radiolytic gases, and ejection of molecules by sputtering. Using infrared spectroscopy, we show that at all temperatures the destruction of ammonia is substantial, but at higher temperatures (120 K), it is nearly complete ({approx}97% destroyed) after a fluence of 10{sup 16} ions/cm{sup 2}. Using mass spectroscopy and microbalance gravimetry, we measure the sputtering yield of our sample and the main components of the sputtered flux. We find that the sputtering yield depends on fluence. At low temperatures, the yield is very low initially and increases quadratically with fluence, while at 120 K the yield is constant and higher initially. The increase in the sputtering yield with fluence is explained by the formation and trapping of the ammonia decay products, N{sub 2} and H{sub 2}, which are seen to be ejected from the ice at all temperatures.

Loeffler, M. J. [Astrochemistry Laboratory, NASA GSFC, Code 691, Greenbelt, Maryland 20775 (United States); Laboratory for Atomic and Surface Physics, Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States); Raut, U.; Baragiola, R. A. [Laboratory for Atomic and Surface Physics, Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)

2010-02-07T23:59:59.000Z

117

Ammonia and ammonium hydroxide sensors for ammonia/water absorption machines: Literature review and data compilation  

SciTech Connect

This report describes an evaluation of various sensing techniques for determining the ammonia concentration in the working fluid of ammonia/water absorption cycle systems. The purpose of this work was to determine if any existing sensor technology or instrumentation could provide an accurate, reliable, and cost-effective continuous measure of ammonia concentration in water. The resulting information will be used for design optimization and cycle control in an ammonia-absorption heat pump. PNL researchers evaluated each sensing technology against a set of general requirements characterizing the potential operating conditions within the absorption cycle. The criteria included the physical constraints for in situ operation, sensor characteristics, and sensor application. PNL performed an extensive literature search, which uncovered several promising sensing technologies that might be applicable to this problem. Sixty-two references were investigated, and 33 commercial vendors were identified as having ammonia sensors. The technologies for ammonia sensing are acoustic wave, refractive index, electrode, thermal, ion-selective field-effect transistor (ISFET), electrical conductivity, pH/colormetric, and optical absorption. Based on information acquired in the literature search, PNL recommends that follow-on activities focus on ISFET devices and a fiber optic evanescent sensor with a colormetric indicator. The ISFET and fiber optic evanescent sensor are inherently microminiature and capable of in situ measurements. Further, both techniques have been demonstrated selective to the ammonium ion (NH{sub 4}{sup +}). The primary issue remaining is how to make the sensors sufficiently corrosion-resistant to be useful in practice.

Anheier, N.C. Jr.; McDonald, C.E.; Cuta, J.M.; Cuta, F.M.; Olsen, K.B.

1995-05-01T23:59:59.000Z

118

AMMONIA CONCENTRATION IN SALTSTONE HEADSPACE SUMMARY REPORT  

SciTech Connect

The Saltstone Facility Documented Safety Analysis (DSA) is under revision to accommodate changes in the Composite Lower Flammability Limit (CLFL) from the introduction of Isopar into Tank 50. Saltstone samples were prepared with an 'MCU' type salt solution spiked with ammonia. The ammonia released from the saltstone was captured and analyzed. The ammonia concentration found in the headspace of samples maintained at 95 C and 1 atm was, to 95% confidence, less than or equal to 3.9 mg/L. Tank 50 is fed by several influent streams. The salt solution from Tank 50 is pumped to the salt feed tank (SFT) in the Saltstone Production Facility (SPF). The premix materials cement, slag and fly ash are blended together prior to transfer to the grout mixer. The premix is fed to the grout mixer in the SPF and the salt solution is incorporated into the premix in the grout mixer, yielding saltstone slurry. The saltstone slurry drops into a hopper and then is pumped to the vault. The Saltstone Facility Documented Safety Analysis (DSA) is under revision to accommodate changes in the Composite Lower Flammability Limit (CLFL) from the introduction of Isopar{reg_sign} L into Tank 50. Waste Solidification-Engineering requested that the Savannah River National Laboratory (SRNL) perform testing to characterize the release of ammonia in curing saltstone at 95 C. The test temperature represents the maximum allowable temperature in the Saltstone Disposal Facility (SDF). Ammonia may be present in the salt solution and premix materials, or may be produced by chemical reactions when the premix and salt solution are combined. A final report (SRNS-STI-2008-00120, Rev. 0) will be issued that will cover in more depth the information presented in this report.

Zamecnik, J; Alex Cozzi, A

2008-09-26T23:59:59.000Z

119

Small-scale costs of hydrogen derived from ammonia. [As ammonia  

SciTech Connect

A systems study was made to assess the economic prospects for using purchased industrial ammonia as a hydrogen distribution and storage medium for users requiring 33 to 330 million std ft/sup 3/ per year (MSCFY) of hydrogen (or 0.1 to 1.0 MSCFD) at a plant capacity factor of 0.9. Projected costs to the end user were determined for the dissociated ammonia product (75 vol % hydrogen, 25 vol % nitrogen), and for ultra-high-purity hydrogen (99.999%) obtained by separation of the nitrogen. Costs were also projected for hydrogen produced by steam-reforming of natural gas, for electrolytic hydrogen, and for purchased (merchant) liquid hydrogen. The costs of ammonia and its hydrogen, and liquid hydrogen made by ocean thermal energy conversion (OTEC), are also listed for comparison. The latter costs from a recent study were updated to include more realistic (higher) hydrogen purification costs. All of the costs, expressed as 1980 $/MBTU in 1990, were obtained for two sets of forecast energy prices on the basis that advanced technology electrolyzers and OTEC products would be available in 1990. Results of the analysis showed that merchant liquid hydrogen was substantially higher in cost than all of the other options. Although hydrogen derived from industrial ammonia was significantly higher in cost than electrolytic hydrogen or hydrogen derived from OTEC ammonia, it can be produced using state-of-the-art technology. Possible reductions in the total cost of obtaining hydrogen via ammonia could make it lower in cost than electrolytic hydrogen. Hydrogen produced from natural gas was lowest in cost, among the land-based sources, for plant sizes exceeding 100 MSCFY. Other comparisons are provided, including the cost of ammonia made from coal. The criteria and methodology applied in the study are described. Uses of the product hydrogen are suggested along with recommendations for future work.

Strickland, G.

1981-10-01T23:59:59.000Z

120

Computing $\\pi(x)$ Analytically  

E-Print Network (OSTI)

We describe a rigorous implementation of the Lagarias and Odlyzko Analytic Method to evaluate the prime counting function and its use to compute unconditionally the number of primes less than $10^{24}$.

Platt, David J

2012-01-01T23:59:59.000Z

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


121

Optically pumped isotopic ammonia laser system  

DOE Patents (OSTI)

An optically pumped isotopic ammonia laser system which is capable of producing a plurality of frequencies in the middle infrared spectral region. Two optical pumping mechanisms are disclosed, i.e., pumping on R(J) and lasing on P(J) in response to enhancement of rotational cascade lasing including stimulated Raman effects, and, pumping on R(J) and lasing on P(J+2). The disclosed apparatus for optical pumping include a hole coupled cavity and a grating coupled cavity.

Buchwald, Melvin I. (Santa Fe, NM); Jones, Claude R. (Los Alamos, NM); Nelson, Leonard Y. (Seattle, WA)

1982-01-01T23:59:59.000Z

122

Enterprise analytics.  

Science Conference Proceedings (OSTI)

Ranking search results is a thorny issue for enterprise search. Search engines rank results using a variety of sophisticated algorithms, but users still complain that search can't ever seem to find anything useful or relevant! The challenge is to provide results that are ranked according to the users definition of relevancy. Sandia National Laboratories has enhanced its commercial search engine to discover user preferences, re-ranking results accordingly. Immediate positive impact was achieved by modeling historical data consisting of user queries and subsequent result clicks. New data is incorporated into the model daily. An important benefit is that results improve naturally and automatically over time as a function of user actions. This session presents the method employed, how it was integrated with the search engine,metrics illustrating the subsequent improvement to the users search experience, and plans for implementation with Sandia's FAST for SharePoint 2010 search engine.

Spomer, Judith E.

2010-09-01T23:59:59.000Z

123

Analytical Division Student Award  

Science Conference Proceedings (OSTI)

Awarded to graduate student(s) in the field of lipid analytical chemistry. Analytical Division Student Award Divisions achievement agricultural analytical application award awards biotechnology detergents distinguished division Divisions edible fa

124

Milk is a common ingredient in many fried foods. Allergen cross contact can occur through the use of shared frying oil. Analytical methods are needed to determine the level of protein contamination in re-used oil. This study  

E-Print Network (OSTI)

the use of shared frying oil. Analytical methods are needed to determine the level of protein contamination in re-used oil. This study evaluated the performance of four ELISA test kits in comparison with a total protein assay for detection of milk protein residues in spiked oils that have been subjected

Heller, Barbara

125

Potential of High-Throughput Experimentation with Ammonia Borane...  

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

of High-Throughput Experimentation with Ammonia Borane Solid Hydrogen Storage Materials Jonathan L. Male Pacific Northwest National Laboratory June 26, 2006 US Department of Energy...

126

Trends in on-road vehicle emissions of ammonia  

SciTech Connect

Motor vehicle emissions of ammonia have been measured at a California highway tunnel in the San Francisco Bay area. Between 1999 and 2006, light-duty vehicle ammonia emissions decreased by 38 {+-} 6%, from 640 {+-} 40 to 400 {+-} 20 mg kg{sup -1}. High time resolution measurements of ammonia made in summer 2001 at the same location indicate a minimum in ammonia emissions correlated with slower-speed driving conditions. Variations in ammonia emission rates track changes in carbon monoxide more closely than changes in nitrogen oxides, especially during later evening hours when traffic speeds are highest. Analysis of remote sensing data of Burgard et al. (Environ Sci. Technol. 2006, 40, 7018-7022) indicates relationships between ammonia and vehicle model year, nitrogen oxides, and carbon monoxide. Ammonia emission rates from diesel trucks were difficult to measure in the tunnel setting due to the large contribution to ammonia concentrations in a mixed-traffic bore that were assigned to light-duty vehicle emissions. Nevertheless, it is clear that heavy-duty diesel trucks are a minor source of ammonia emissions compared to light-duty gasoline vehicles.

Kean, A.J.; Littlejohn, D.; Ban-Weiss, G.A.; Harley, R.A.; Kirchstetter, T.W.; Lunden, M. M.

2008-07-15T23:59:59.000Z

127

AMMONIA-FREE NOx CONTROL SYSTEM  

DOE Green Energy (OSTI)

This report describes a novel NOx control system that has the potential to drastically reduce cost, and enhance performance, operation and safety of power plant NOx control. The new system optimizes the burner and the furnace to achieve very low NOx levels and to provide an adequate amount of CO, and uses the CO for reducing NO both in-furnace and over a downstream AFSCR (ammonia-free selective catalytic reduction) reactor. The AF-SCR combines the advantages of the highly successful SCR technology for power plants and the TWC (three-way catalytic converter) widely used on automobiles. Like the SCR, it works in oxidizing environment of combustion flue gas and uses only base metal catalysts. Like the TWC, the AF-SCR removes NO and excess CO simultaneously without using any external reagent, such as ammonia. This new process has been studied in a development program jointed funded by the US Department of Energy and Foster Wheeler. The report outlines the experimental catalyst work performed on a bench-scale reactor, including test procedure, operating conditions, and results of various catalyst formulations. Several candidate catalysts, prepared with readily available transition metal oxides and common substrate materials, have shown over 80-90% removal for both NO and CO in oxidizing gas mixtures and at elevated temperatures. A detailed combustion study of a 400 MWe coal-fired boiler, applying computational fluid dynamics techniques to model boiler and burner design, has been carried out to investigate ways to optimize the combustion process for the lowest NOx formation and optimum CO/NO ratios. Results of this boiler and burner optimization work are reported. The paper further discusses catalyst scale-up considerations and the conceptual design of a 400 MWe size AF-SCR reactor, as well as economics analysis indicating large cost savings of the ammonia-free NOx control process over the current SCR technology.

Song Wu; Zhen Fan; Andrew H. Seltzer; Richard G. Herman

2006-06-01T23:59:59.000Z

128

AOCS Analytical Guidelines Ja 12-89  

Science Conference Proceedings (OSTI)

Analysis of Lecithin Co-Products AOCS Analytical Guidelines Ja 12-89 Methods Downloads Methods Downloads AOCS DEFINITION These guidelines identify standard methods that are recommended for th

129

Characterization of Ammonia Leaching from Coal Fly Ash  

Science Conference Proceedings (OSTI)

This interim report presents the results of a preliminary laboratory assessment of the leaching of ammonia from coal ashes that have been ammoniated by pollution control devices installed on power plants to reduce nitrogen oxide (NOx) emissions. This laboratory assessment project was designed to measure the leaching rates of ammonia from ashes in a disposal environment.

2001-11-30T23:59:59.000Z

130

Regeneration of ammonia borane spent fuel  

DOE Green Energy (OSTI)

A necessary target in realizing a hydrogen (H{sub 2}) economy, especially for the transportation sector, is its storage for controlled delivery, presumably to an energy producing fuel cell. In this vein, the U.S. Department of Energy's Centers of Excellence (CoE) in Hydrogen Storage have pursued different methodologies, including metal hydrides, chemical hydrides, and sorbents, for the expressed purpose of supplanting gasoline's current > 300 mile driving range. Chemical H{sub 2} storage has been dominated by one appealing material, ammonia borane (H{sub 3}N-BH{sub 3}, AB), due to its high gravimetric capacity of H{sub 2} (19.6 wt %) and low molecular weight (30.7 g mol{sup -1}). In addition, AB has both hydridic and protic moieties, yielding a material from which H{sub 2} can be readily released in contrast to the loss of H{sub 2} from C{sub 2}H{sub 6} which is substantially endothermic. As such, a number of publications have described H{sub 2} release from amine boranes, yielding various rates depending on the method applied. The viability of any chemical H{sub 2} storage system is critically dependent on efficient recyclability, but reports on the latter subject are sparse, invoke the use of high energy reducing agents, and suffer from low yields. Our group is currently engaged in trying to find and fully demonstrate an energy efficient regeneration process for the spent fuel from H{sub 2} depleted AB with a minimum number of steps. Although spent fuel composition depends on the dehydrogenation method, we have focused our efforts on the spent fuel resulting from metal-based catalysis, which has thus far shown the most promise. Metal-based catalysts have produced the fastest rates for a single equivalent of H{sub 2} released from AB and up to 2.5 equiv. of H{sub 2} can be produced within 2 hours. While ongoing work is being carried out to tailor the composition of spent AB fuel, a method has been developed for regenerating the predominant product, polyborazylene (PB) which can be obtained readily from the decomposition of borazine or from nickel carbene catalyst dehydrogenation. In this cycle, the PB is digested with benzenedithiol to yield two products which can both be converted to AB using Bu{sub 3}SnH and BU{sub 2}SnH{sub 2} as reductants. However, in a real world situation the process becomes more complicated for several reasons. Bu{sub 2}SnH{sub 2} is thermally unstable and therefore not viable in a process scale operation. This has led to the development of Bu{sub 3}SnH as the sole reductant although this requires an additional amine exchange step in order to facilitate the reduction to an amine-borane which can then be converted to AB. The tin by-products also need to be recycled in order to maximize the overall energy efficiency and therefore minimize the overall cost of the process. In addition, on an industrial scale, the mass of the tin reductant generates significant cost due to the manipulation of the relatively large quantities involved so reducing the mass at this stage would be of vast significance. We will discuss further developments made to the tin recycle component of the cycle (including methods to minimize tin usage) and investigate new methods of reduction of the digested products, primarily focusing on lighter reductants, including lighter analogs of Bu{sub 2}SnH{sub 2} and Bu{sub 3}SnH. These advances will have a significant impact on the cost of production and therefore the viability of AB as a fuel. Minimization of tin reagents and their recycle will contribute to reduction of the overall cost of AB regeneration and all stages of AB regeneration have been demonstrated.

Sutton, Andrew David [Los Alamos National Laboratory; Davis, Benjamin L [Los Alamos National Laboratory; Gordon, John C [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

131

Mound Laboratory: Analytical Capability  

SciTech Connect

The Monsanto Research Corporation, Mound Laboratory Analytical Capability report is intended to fulfill a customer need for basic information concerning Mound Laboratory's analytical instrumentation and techniques.

Hendrickson, E. L.

1955-03-01T23:59:59.000Z

132

Ammonia-Free NOx Control System  

SciTech Connect

Research is being conducted under United States Department of Energy (DOE) Contract DEFC26-03NT41865 to develop a new technology to achieve very low levels of NOx emissions from pulverized coal fired boiler systems by employing a novel system level integration between the PC combustion process and the catalytic NOx reduction with CO present in the combustion flue gas. The combustor design and operating conditions will be optimized to achieve atypical flue gas conditions. This approach will not only suppress NOx generation during combustion but also further reduce NOx over a downstream catalytic reactor that does not require addition of an external reductant, such as ammonia. This report describes the work performed during the January 1 to March 31, 2004 time period.

S. Wu; Z. Fan; R. Herman

2004-03-31T23:59:59.000Z

133

Radiation Damage in Polarized Ammonia Solids  

E-Print Network (OSTI)

Solid NH3 and ND3 provide a highly polarizable, radiation resistant source of polarized protons and deuterons and have been used extensively in high luminosity experiments investigating the spin structure of the nucleon. Over the past twenty years, the UVA polarized target group has been instrumental in producing and polarizing much of the material used in these studies, and many practical considerations have been learned in this time. In this discussion, we analyze the polarization performance of the solid ammonia targets used during the recent JLab Eg4 run. Topics include the rate of polarization decay with accumulated charge, the annealing procedure for radiation damaged targets to recover polarization, and the radiation induced change in optimum microwave frequency used to polarize the sample. We also discuss the success we have had in implementing frequency modulation of the polarizing microwave frequency.

K. Slifer

2007-11-28T23:59:59.000Z

134

Ammonia-Free NOx Control System  

SciTech Connect

Research is being conducted under United States Department of Energy (DOE) Contract DEFC26-03NT41865 to develop a new technology to achieve very low levels of NOx emissions from pulverized coal fired boiler systems by employing a novel system level integration between the PC combustion process and the catalytic NOx reduction with CO present in the combustion flue gas. The combustor design and operating conditions will be optimized to achieve atypical flue gas conditions. This approach will not only suppress NOx generation during combustion but also further reduce NOx over a downstream catalytic reactor that does not require addition of an external reductant, such as ammonia. This report describes the work performed during the April 1 to June 30, 2004 time period.

Zhen Fan; Song Wu; Richard G. Herman

2004-06-30T23:59:59.000Z

135

AOCS Official Method Ba 4a-38  

Science Conference Proceedings (OSTI)

Nitrogen-Ammonia-Protein Modified Kjeldahl Method AOCS Official Method Ba 4a-38 Methods Downloads Methods Downloads E7B77B410D32934D09E6EB2487B72AFB DEFINITION This method determines, a

136

Welcome to Analytical Labs  

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

Services Services Our Capabilities Analytical Laboratories at the SRS performs analyses on a wide range of materials, including soil, water, gases, foodstuffs, decommissioning debris, waste, urine, fecal matter and process control samples. The laboratories maintain certifications and qualifications through a variety of governing bodies, which allows multiple applications of our services. Each year, we process over 200,000 samples and over half a million determinations, with an error-free rate better than 99.99%. Our Services We offer a full complement of nuclear counting and chemical processing methods, including microwave/hot block digestion of solids; alpha pulse height analyzer (PHA), gamma PHA and liquid scintillation counter, diode array spectrophotometer, ICP emission spectrometer, ICP mass spectrometer, thermal ionization mass spectrometer, chemical titrators, and IR analyzer. In addition, we offer unique environmental and industrial hygiene analytical services, including rapid analysis of radiological contaminants in water, soil, and human matrices; Radiological American Industrial Hygiene Association-accredited beryllium, lead, other metals, hexavalent chromium, and asbestos analyses.

137

On the analytic solutions of the nonhomogeneous Blasius problem  

Science Conference Proceedings (OSTI)

In this article a totally analytic solution of the nonhomogeneous Blasius problem is obtained using the homotopy analysis method (HAM). This solution converges for 0= Keywords: 65-xx, Analytic solution, Blasius problem, Homotopy analysis method

Fathi M. Allan; Muhammed I. Syam

2005-10-01T23:59:59.000Z

138

100-B/C Target Analyte List Development for Soil  

Science Conference Proceedings (OSTI)

This report documents the process used to identify source area target analytes in support of the 100-B/C remedial investigation/feasibility study addendum to DOE/RL-2008-46. This report also establishes the analyte exclusion criteria applicable for 100-B/C use and the analytical methods needed to analyze the target analytes.

R.W. Ovink

2010-03-18T23:59:59.000Z

139

How the Membrane Protein AmtB Transports Ammonia  

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

How the Membrane Protein AmtB Transports Ammonia Print How the Membrane Protein AmtB Transports Ammonia Print Membrane proteins provide molecular-sized entry and exit portals for the various substances that pass into and out of cells. While life scientists have solved the structures of protein channels for ions, uncharged solutes, and even water, up to now they have only been able to guess at the precise mechanisms by which gases (such as NH3, CO2, O2, NO, N2O, etc.) cross biological membranes. But, with the first high-resolution structure of a bacterial ammonia transporter (AmtB), determined by a team in the Stroud group from the University of California, San Francisco, it is now known that this family of transporters conducts ammonia by stripping off the proton from the ammonium (NH4+) cation and conducting the uncharged NH3 "gas."

140

Ammonia Emissions from Anaerobic Swine Lagoons: Model Development  

Science Conference Proceedings (OSTI)

Concentrated animal production may represent a significant source for ammonia emissions to the environment. Most concentrated animal production systems use anaerobic or liquid/slurry systems for wasteholding; thus, it is desirable to be able to ...

A. De Visscher; L. A. Harper; P. W. Westerman; Z. Liang; J. Arogo; R. R. Sharpe; O. Van Cleemput

2002-04-01T23:59:59.000Z

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


141

Atmospheric ammonia and particulate inorganic nitrogen over the United States  

E-Print Network (OSTI)

We use in situ observations from the Interagency Monitoring of PROtected Visual Environments (IMPROVE) network, the Midwest Ammonia Monitoring Project, 11 surface site campaigns as well as Infrared Atmospheric Sounding ...

Heald, Colette L.

142

Reduction of Ammonia and Tar in Pressurized Biomass Gasification  

DOE Green Energy (OSTI)

The present paper intended to present the results of parametric study of the formation of ammonia and tar under pressurized gasification conditions. By the use of multivariate data analysis, the effects of operating parameters were determined and their influences could be quantified. In order to deal with cases in which high levels of ammonia and tar were produced, study of catalytic hot gas cleaning was performed, aiming to discuss the removal efficiency and test catalysts.

Wang, W.; Olofsson, G.

2002-09-19T23:59:59.000Z

143

Ammonia concentration modeling based on retained gas sampler data  

Science Conference Proceedings (OSTI)

The vertical ammonia concentration distributions determined by the retained gas sampler (RGS) apparatus were modeled for double-shell tanks (DSTs) AW-101, AN-103, AN-104, and AN-105 and single-shell tanks (SSTs) A-101, S-106, and U-103. One the vertical transport of ammonia in the tanks were used for the modeling. Transport in the non-convective settled solids and floating solids layers is assumed to occur primarily via some type of diffusion process, while transport in the convective liquid layers is incorporated into the model via mass transfer coefficients based on empirical correlations. Mass transfer between the top of the waste and the tank headspace and the effects of ventilation of the headspace are also included in the models. The resulting models contain a large number of parameters, but many of them can be determined from known properties of the waste configuration or can be estimated within reasonable bounds from data on the waste samples themselves. The models are used to extract effective diffusion coefficients for transport in the nonconvective layers based on the measured values of ammonia from the RGS apparatus. The modeling indicates that the higher concentrations of ammonia seen in bubbles trapped inside the waste relative to the ammonia concentrations in the tank headspace can be explained by a combination of slow transport of ammonia via diffusion in the nonconvective layers and ventilation of the tank headspace by either passive or active means. Slow transport by diffusion causes a higher concentration of ammonia to build up deep within the waste until the concentration gradients between the interior and top of the waste are sufficient to allow ammonia to escape at the same rate at which it is being generated in the waste.

Terrones, G.; Palmer, B.J.; Cuta, J.M.

1997-09-01T23:59:59.000Z

144

Exhaust purification with on-board ammonia production  

DOE Patents (OSTI)

A system of ammonia production for a selective catalytic reduction system is provided. The system includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaust passage and cooled to a predetermined temperature range, and at least a portion of the NOx within the exhaust gas stream may be converted into ammonia.

Robel, Wade J. (Peoria, IL); Driscoll, James Joshua (Dunlap, IL); Coleman, Gerald N. (Peterborough, GB)

2008-05-13T23:59:59.000Z

145

Multi-component removal in flue gas by aqua ammonia  

DOE Patents (OSTI)

A new method for the removal of environmental compounds from gaseous streams, in particular, flue gas streams. The new method involves first oxidizing some or all of the acid anhydrides contained in the gas stream such as sulfur dioxide (SO.sub.2) and nitric oxide (NO) and nitrous oxide (N.sub.2O) to sulfur trioxide (SO.sub.3) and nitrogen dioxide (NO.sub.2). The gas stream is subsequently treated with aqua ammonia or ammonium hydroxide which captures the compounds via chemical absorption through acid-base or neutralization reactions. The products of the reactions can be collected as slurries, dewatered, and dried for use as fertilizers, or once the slurries have been dewatered, used directly as fertilizers. The ammonium hydroxide can be regenerated and recycled for use via thermal decomposition of ammonium bicarbonate, one of the products formed. There are alternative embodiments which entail stoichiometric scrubbing of nitrogen oxides and sulfur oxides with subsequent separate scrubbing of carbon dioxide.

Yeh, James T. (Bethel Park, PA); Pennline, Henry W. (Bethel Park, PA)

2007-08-14T23:59:59.000Z

146

Analytical Chemistry Databases and Links  

Science Conference Proceedings (OSTI)

Analytical chemistry websites, humor, Material Safety Data Sheets,Patent Information, and references. Analytical Chemistry Databases and Links Analytical Chemistry acid analysis Analytical Chemistry aocs applicants april articles atomic)FluorometryDiffer

147

Nanochannel and its application in analytical chemistry  

Science Conference Proceedings (OSTI)

The nanochannels method for the separation and detection of analytes plays an important role in the analytical chemistry and is exhibiting the great potential advantages and promising future. In this review we bring together and discuss a number of nanochannels ... Keywords: applications, nanochannels, preparation, separation

Zenglian Yue; Guoqing Zhao; Bin Peng; Shasheng Huang

2009-12-01T23:59:59.000Z

148

Computer simulation and economic analysis for ammonia fiber explosion (AFEX) pretreatment process  

E-Print Network (OSTI)

The ammonia fiber explosion (AFFECT) process is a promising new pretreatment for enhancing the reactivity of lignocerulose materials with many advantages over existing processes. The material is soaked in high-pressure liquid ammonia for a few minutes then the pressure is explosively released. A combined chemical (cellulose decrystamution) and physical (increased surface area) effect increases the enzymatic digestibility of lignocelmose. The laboratory phase of AFEX development is nearing completion, and a brief preliminary economic analysis (without detailed sizing) was finished. However, a commercial size plant has not been developed. This study was undertaken in an effort to support and assist AFEX commercialization through process simulation and cost analysis. In this study, a steady state computer simulation package was developed for the AFEX process. Corn fiber was used as the representative biomass treated by AFEX. Different ammonia loadings, water loadings, temperatures and pressures were used as operational parameters. Mass balances and energy balances are the major determinants of the equipments selected and sized. 'nermodynamic models or kinetic models are also included. A preliminary cost estimate includes total purchased-equipment cost using the equipment cost ratio method. The process computer simulation model was programmed in FORTRAN. FORTRAN subroutine libraries from IMSL (International Mathematical and Statistics Library), Inc. were used as needed. To increase the portability of the program, the programming was done on an EBM compatible PC.

Wang, Lin

1996-01-01T23:59:59.000Z

149

Extreme Scale Visual Analytics  

Science Conference Proceedings (OSTI)

Extreme-scale visual analytics (VA) is about applying VA to extreme-scale data. The articles in this special issue examine advances related to extreme-scale VA problems, their analytical and computational challenges, and their real-world applications.

Wong, Pak C.; Shen, Han-Wei; Pascucci, Valerio

2012-05-08T23:59:59.000Z

150

Modeling of selective catalytic reduction (SCR) of nitric oxide with ammonia using four modern catalysts  

E-Print Network (OSTI)

In this work, the steady-state performance of zeolite-based Cu-ZSM-5, vanadium based honeycomb monolith catalysts (V), vanadium-titanium based pillared inter layered clay catalyst (V-Ti PLIC) and vanadium-titanium-tungsten-based honeycomb monolith catalysts (V-Ti-W) was investigated in the selective catalytic reduction process (SCR) for NO removal using NH3 in presence of oxygen. The objective is to obtain the expression that would predict the conversion performance of the catalysts for different values of the SCR process parameters, namely temperature, inlet oxygen concentration and inlet ammonia concentration. The NOx emission, its formation and control methods are discussed briefly and then the fundamentals of the SCR process are described. Heat transfer based and chemical kinetics based SCR process models are discussed and widely used rate order based model are reviewed. Based on the experimental data, regression analysis was performed that gives an expression for predicting the SCR rate for the complete temperature range and the rate order with respect to inlet oxygen and ammonia concentration. The average activation energy for the SCR process was calculated and optimum operating conditions were determined for each of the catalyst. The applicable operating range for the catalyst depends on the NO conversion as well as on the ammonia slip and the N2O and NO2 emission. The regression analysis was repeated for the applicable range and an expression was obtained that can be used to estimate the catalyst performance. For the Cu-ZSM-5, the best performance was observed for 400oC, 660 ppm inlet ammonia concentration and 0.1% inlet oxygen concentration. For the V based honeycomb monolith catalyst, the best performance was observed for 300oC, 264 ppm inlet ammonia concentration and 3% inlet oxygen concentration. For the V-Ti based PLIC catalyst, the best performance was observed for 350oC, 330 ppm inlet ammonia concentration and 3% inlet oxygen concentration. For the V-Ti-W based honeycomb monolith catalyst, the best performance was observed for 300oC, 330 ppm inlet ammonia concentration and 3% inlet oxygen concentration. The conversion performance of all of these catalysts is satisfactory for the industrial application. At the operating conditions listed above, the N2O emission is less than 20 ppm and the NO2 emission is less than 10 ppm. The results were validated by comparing the findings with the similar work by other research groups. The mechanism of SCR process is discussed for each of the catalyst. The probable reactions are listed and adsorption and desorption process are studied. The various mechanisms proposed by the researchers are discussed briefly. It is concluded that V-Ti-W and Cu-ZSM-5 catalyst are very promising for SCR of NOx. The expressions can be used to estimate the conversion performance and can be utilized for optimal design and operation. The expressions relate the SCR rate to the input parameters such as temperature and inlet oxygen and ammonia concentration hence by controlling these parameters desired NOx reduction can be achieved with minimal cost and emission.

Sharma, Giriraj

2004-08-01T23:59:59.000Z

151

AOCS Official Method Cf 1-68  

Science Conference Proceedings (OSTI)

Analytical Guidelines for Testing Feed Grade Fat Products AOCS Official Method Cf 1-68 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOP

152

Design and performance of an ammonia measurement system  

E-Print Network (OSTI)

Ammonia emissions from animal feeding operations (AFOs) have recently come under increased scrutiny. The US Environmental Protection Agency (EPA) has come under increased pressure from special interest groups to regulate ammonia. Regulation of ammonia is very difficult because every facility has different manure management practices. Different management practices lead to different emissions for every facility. Researchers have been tasked by industry to find best management practices to reduce emissions. The task cannot be completed without equipment that can efficiently and accurately compare emissions. To complete this task, a measurement system was developed and performance tested to measure ammonia. Performance tests included uncertainty analysis, system response, and adsorption kinetics. A measurement system was designed for measurement of gaseous emissions from ground level area sources (GLAS) in order to sample multiple receptors with a single sensor. This multiplexer may be used in both local and remote measurement systems to increase the sampling rate of gaseous emissions. The increased data collection capacity with the multiplexer allows for nearly three times as many samples to be taken in the same amount of time while using the same protocol for sampling. System response analysis was performed on an ammonia analyzer, a hydrogen sulfide analyzer, and tubing used with flux chamber measurement. System responses were measured and evaluated using transfer functions. The system responses for the analyzers were found to be first order with delay in auto mode. The tubing response was found to be a first order response with delay. Uncertainty analysis was performed on an ammonia sampling and analyzing system. The system included an analyzer, mass flow controllers, calibration gases, and analog outputs. The standard uncertainty was found to be 443 ppb when measuring a 16 ppm ammonia stream with a 20 ppm span. A laboratory study dealing with the adsorption kinetics of ammonia on a flux chamber was performed to determine if adsorption onto the chamber walls was significant. The study found that the adsorption would not significantly change the concentration of the output flow 30 minutes after a clean chamber was exposed to ammonia concentrations for concentrations above 2.5 ppm.

Boriack, Cale Nolan

2005-12-01T23:59:59.000Z

153

CHEMICAL PROCESSING OF PURE AMMONIA AND AMMONIA-WATER ICES INDUCED BY HEAVY IONS  

SciTech Connect

Cosmic rays are possibly the main agents to prevent the freeze-out of molecules onto grain surfaces in cold dense clouds. Ammonia (NH{sub 3}) is one of the most abundant molecules present in dust ice mantles, with a concentration of up to 15% relative to water (H{sub 2}O). FTIR spectroscopy is used to monitor pure NH{sub 3} and NH{sub 3}-H{sub 2}O ice samples as they are irradiated with Ni and Zn ion beams (500-600 MeV) at GANIL/France. New species, such as hydrazine (N{sub 2}H{sub 4}), diazene (N{sub 2}H{sub 2} isomers), molecular hydrogen (H{sub 2}), and nitrogen (N{sub 2}) were identified after irradiation of pure NH{sub 3} ices. Nitrous oxide (N{sub 2}O), nitrogen oxide (NO), nitrogen dioxide (NO{sub 2}), and hydroxylamine (NH{sub 2}OH) are some of the products of the NH{sub 3}-H{sub 2}O ice radiolysis. The spectral band at 6.85 {mu}m was observed after irradiation of both types of ice. Besides the likely contribution of ammonium (NH{sub 4}{sup +}) and amino (NH{sub 2}) radicals, data suggest a small contribution of NH{sub 2}OH to this band profile after high fluences of irradiation of NH{sub 3}-H{sub 2}O ices. The spectral shift of the NH{sub 3} ''umbrella'' mode (9.3 {mu}m) band is parameterized as a function of NH{sub 3}/H{sub 2}O ratio in amorphous ices. Ammonia and water destruction cross-sections are obtained, as well as the rate of NH{sub 3}-H{sub 2}O (1:10) ice compaction, measured by the OH dangling bond destruction cross-section. Ammonia destruction is enhanced in the presence of H{sub 2}O in the ice and a power law relationship between stopping power and NH{sub 3} destruction cross-section is verified. Such results may provide relevant information for the evolution of molecular species in dense molecular clouds.

Bordalo, V.; Da Silveira, E. F. [Departamento de Fisica/Laboratorio do Acelerador Van de Graaff, Pontificia Universidade Catolica do Rio de Janeiro, Rua Marques de S. Vicente 225, 22451-900 Rio de Janeiro, RJ (Brazil); Lv, X. Y.; Domaracka, A.; Rothard, H.; Boduch, P. [Centre de Recherche sur les Ions, les Materiaux et la Photonique (CEA/CNRS/ENSICAEN/Universite de Caen-Basse Normandie), CIMAP-CIRIL-GANIL, Boulevard Henri Becquerel, BP 5133, F-14070 Caen Cedex 05 (France); Seperuelo Duarte, E., E-mail: vbordalo@fis.puc-rio.br [Grupo de Fisica e Astronomia, Instituto Federal do Rio de Janeiro, Rua Lucio Tavares 1045, 26530-060 Nilopolis, RJ (Brazil)

2013-09-10T23:59:59.000Z

154

A mass transfer model of ammonia volatilisation from anaerobic digestate  

SciTech Connect

Anaerobic digestion (AD) is becoming increasingly popular for treating organic waste. The methane produced can be burned to generate electricity and the digestate, which is high in mineral nitrogen, can be used as a fertiliser. In this paper we evaluate potential losses of ammonia via volatilisation from food waste anaerobic digestate using a closed chamber system equipped with a sulphuric acid trap. Ammonia losses represent a pollution source and, over long periods could reduce the agronomic value of the digestate. Observed ammonia losses from the experimental system were linear with time. A simple non-steady-state partitioning model was developed to represent the process. After calibration, the model was able to describe the behaviour of ammonia in the digestate and in the trap very well. The average rate of volatilisation was approximately 5.2 g N m{sup -2} week{sup -1}. The model was used to extrapolate the findings of the laboratory study to a number of AD storage scenarios. The simulations highlight that open storage of digestate could result in significant losses of ammonia to the atmosphere. Losses are predicted to be relatively minor from covered facilities, particularly if depth to surface area ratio is high.

Whelan, M.J., E-mail: m.j.whelan@cranfield.ac.u [School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire, MK43 0AL (United Kingdom); Everitt, T.; Villa, R. [School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire, MK43 0AL (United Kingdom)

2010-10-15T23:59:59.000Z

155

Chemical pathways for the formation of ammonia in Hanford wastes  

SciTech Connect

This report reviews chemical reactions leading to the formation of ammonia in Hanford wastes. The general features of the chemistry of the organic compounds in the Hanford wastes are briefly outlined. The radiolytic and thermal free radical reactions that are responsible for the initiation and propagation of the oxidative degradation reactions of the nitrogen-containing complexants, trisodium HEDTA and tetrasodium EDTA, are outlined. In addition, the roles played by three different ionic reaction pathways for the oxidation of the same compounds and their degradation products are described as a prelude to the discussion of the formation of ammonia. The reaction pathways postulated for its formation are based on tank observations, laboratory studies with simulated and actual wastes, and the review of the scientific literature. Ammonia derives from the reduction of nitrite ion (most important), from the conversion of organic nitrogen in the complexants and their degradation products, and from radiolytic reactions of nitrous oxide and nitrogen (least important). Reduction of nitrite ions is believed to be the most important source of ammonia. Whether by radiolytic or thermal routes, nitrite reduction reactions proceed through nitrogen dioxide, nitric oxide, the nitrosyl anion, and the hyponitrite anion. Nitrite ion is also converted into hydroxylamine, another important intermediate on the pathway to form ammonia. These reaction pathways additionally result in the formation of nitrous oxide and molecular nitrogen, whereas hydrogen formation is produced in a separate reaction sequence.

Stock, L.M.; Pederson, L.R.

1997-09-01T23:59:59.000Z

156

Welcome to Analytical Labs  

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

We've been part of the SRS family for over 50 years. Mission To safely operate nuclear and environmental laboratories in providing the highest quality analytical services to all of...

157

Chemical pathways for the formation of ammonia in Hanford wastes  

SciTech Connect

This report reviews chemical reactions leading to the formation of ammonia in Hanford wastes. The general features of the chemistry of the organic compounds in the Hanford wastes are briefly outlined. The radiolytic and thermal free radical reactions that are responsible for the initiation and propagation of the oxidative degradation reactions of the nitrogen-containing complexants, trisodium HEDTA and tetrasodium EDTA, are outlined. In addition, the roles played by three different ionic reaction pathways for the oxidation of the same compounds and their degradation products are described as a prelude to the discussion of the formation of ammonia. The reaction pathways postulated for its formation are based on tank observations, laboratory studies with simulated and actual wastes, and the review of the scientific literature. Ammonia derives from the reduction of nitrite ion (most important), from the conversion of organic nitrogen in the complexants and their degradation products, and from radiolytic reactions of nitrous oxide and nitrogen (least important).

Stock, L.M.; Pederson, L.R.

1997-12-01T23:59:59.000Z

158

Frozen ammonia micropellet generator for Baseball II-T  

SciTech Connect

A ''startup'' plasma at the center of the Baseball II-T magnet was studied. This startup plasma will be used as a target for high energy neutral beams to achieve the required build-up. The target plasma will be created by irradiating a solid pellet with a laser beam. Although a deuterium pellet would be superior because of purity, the development of an ammonia pellet was undertaken because it requires a simpler technology. The ammonia target plasma is physically acceptable for the initial experiment. A frozen ammonia pellet, about 100 $mu$m in diameter, will be irradiated with 300-J CO$sub 2$ laser, to produce a density of about 10$sup 13$ cm$sup -3$ and about 1 kV temperature. (auth)

Denhoy, B.S.

1975-10-28T23:59:59.000Z

159

Thermodynamic properties of ammonia-water mixtures for power cycles  

SciTech Connect

Power cycles with ammonia-water mixtures as working fluids have been shown to reach higher thermal efficiencies than the traditional steam turbine (Rankine) cycle with water as the working fluid. Different correlations for the thermodynamic properties of ammonia-water mixtures have been used in studies of ammonia-water mixture cycles described in the literature. Four of these correlations are compared in this paper. The differences in thermal efficiencies for a bottoming Kalina cycle when these four property correlations are used are in the range 0.5 to 3.3%. The properties for saturated liquid and vapor according to three of the correlations and available experimental data are also compared at high pressures and temperatures [up to 20 MPa and 337 C (610 K)]. The difference in saturation temperature for the different correlations is up to 20%, and the difference in saturation enthalpy is as high as 100% when the pressure is 20 MPa.

Thorin, E. [Royal Inst. of Technology, Stockholm (Sweden)]|[Maelardalen Univ., Vaesteraas (Sweden). Dept. of Energy; Dejfors, C.; Svedberg, G. [Royal Inst. of Technology, Stockholm (Sweden)

1998-03-01T23:59:59.000Z

160

About Analytical Labs  

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LOOKING FOR THE RIGHT MIX IN ANALYTICAL SERVICES? LOOKING FOR THE RIGHT MIX IN ANALYTICAL SERVICES? Let's break it down. Analytical Laboratories at the SRS offers a wide-range of analytical capabilities; extensive and highly-specialized facilities; in-depth talent; and an unsurpassed record for providing our customers with the highest quality of service. We've served our nation for more than 50 years. Now, we're ready to provide those same services to you. Call us when you are looking for the right proportion of capabilities, facilities, talent and commitment to excellence. Our Facilities Analytical Laboratories at the SRS offers a wide-range of analytical capabilities; extensive and highly-specialized facilities; in-depth talent; and an unsurpassed record for providing our customers with the highest quality of service. We've served our nation for more than 50 years. Now, we're ready to provide those same services to you. Call us when you are looking for the right proportion of capabilities, facilities, talent and commitment to excellence.

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


161

Methods Development  

Science Conference Proceedings (OSTI)

ISO committee and more information on standardization effects pertaining to AOCS. Methods Development Analytical Chemistry acid analysis Analytical Chemistry aocs applicants april articles atomic)FluorometryDifferential scanning calorimetry chemist chemi

162

Development and analytical validation of a gas chromatography-mass spectrometry method for the assessment of gastrointestinal permeability and intestinal absorptive capacity in dogs  

E-Print Network (OSTI)

Assessment of gastrointestinal permeability in vivo is considered a suitable method for the evaluation of gastrointestinal mucosal integrity. Probes commonly used include lactulose (L) and rhamnose (R) for the assessment of intestinal permeability, xylose (X) and 3-O-methylglucose (M) for the evaluation of intestinal absorptive capacity, and sucrose (S) for the assessment of gastric permeability. Traditionally, various methods have been used to quantify these markers in the urine after orogastric administration. However, urine collection is difficult and uncomfortable. A protocol based on the analysis of blood samples would be easier to perform. Thus, the aim of the first part of this project was to develop and validate a new gas chromatography-mass spectrometry (GC-MS) method for the quantification of five sugar probes in canine serum. The method was sensitive, accurate, precise, and reproducible for the simultaneous quantification of 5 sugar probes in serum. The aim of the second part of this project was to assess the kinetic profiles of these 5 sugar probes in serum after orogastric administration in dogs and to determine the optimal time point for sample collection. Dogs received a solution containing L (10 g/L), R (10 g/L), X (10 g/L), M (5 g/L), and S (40 g/L) by orogastric intubation. Baseline blood samples were collected. Subsequent timed blood samples were taken for a 24 hours period. Significant changes in serum concentrations of all 5 sugars were detected after administration of the test dose (p<0.0001 for all 5 probes). Serum concentrations of L and R were significantly different from baseline concentrations from 90 to 240 and from 60 to 300 min post dosing respectively, and those of X, M, and S were significantly different from 30 to 240 min after dosing (p<0.05 for all 5 probes). Variations of the mean sugar concentrations of all dogs at 90, 120, and 180 minutes were analyzed using a Kruskal-Wallis test. Based on the results, only two blood samples, one taken at baseline and a second sample obtained between 90 and 180 after dosing, appear to be sufficient for assessment of intestinal permeability and mucosal absorptive capacity using these sugar probes.

Rodriguez Frausto, Heriberto

2008-12-01T23:59:59.000Z

163

Emission factors for ammonia and particulate matter from broiler Houses  

E-Print Network (OSTI)

Total suspended particulate (TSP) concentrations, ammonia (NH?) concentrations, and ventilation rates were measured in four commercial, tunnel ventilated broiler houses in June through December of 2000 in Brazos County, Texas. Particle size distributions were developed from TSP samplers collected and used to determine the mass fraction of PM?? in the TSP samples collected. Concentrations of TSP and ammonia measured were multiplied by the ventilation rates measured to obtain emission factors for PM?? and ammonia from tunnel ventilated commercial broiler houses. TSP and NH? concentrations ranged from 7,387 to 11,387 []g/m³ and 2.02 to 45 ppm, respectively. Ammonia concentration exhibited a correlation with the age of the birds. Mass median diameters (MMD) found using particle size analysis with a Coulter Counter Multisizer were between 24.0 and 26.7 mm aerodynamic equivalent diameter. MMD increased with bird age. The mass fraction of PM?? in the TSP samples was between 2.72% and 8.40% with a mean of 5.94%. Ventilation rates were measured between 0.58 and 89 m³/s. Ammonia emission rates varied from 38 to 2105 g/hr. TSP emission rates and PM?? emission rates ranged from 7.0 to 1673 g/hr 0.58 to 99 g/hr respectively. Emission rates for ammonia and particulate matter increased with the age of the birds. Error and sensitivity analysis was conducted using Monte Carlo simulation for the calculation of emission rates. Error for ammonia emission rates was 99 g/hr during tunnel ventilation and 6 g/hr during sidewall ventilation. Error for TSP emission rates was 79 g/hr and 11 g/hr for tunnel and sidewall ventilation respectively. Sensitivity analysis showed that ventilation rate measurements and measurement of ammonia concentration had the most effect on the emission rates. Emission factors of NH? and PM?? estimated for these buildings were 1.32 ± 0.472 g/bird and 22.8 ± 9.28 g/bird, respectively. These emission factors take into account the variation of PM?? and NH? concentrations and ventilation rates with the age of the birds.

Redwine, Jarah Suzanne

2001-01-01T23:59:59.000Z

164

Using Zeolites Synthesized from Fly Ash to Reduce Ammonia Loss to the Environment  

Science Conference Proceedings (OSTI)

This interim report describes studies using zeolites synthesized from fly ash to reduce ammonia loss to the environment.

2002-02-19T23:59:59.000Z

165

Efficient regeneration of partially spent ammonia borane fuel  

DOE Green Energy (OSTI)

A necessary target in realizing a hydrogen (H{sub 2}) economy, especially for the transportation sector, is its storage for controlled delivery, presumably to an energy producing fuel cell. In this vein, the U.S. Department of Energy's (DOE) Centers of Excellence (CoE) in Hydrogen Storage have pursued different methodologies, including metal hydrides, chemical hydrides, and sorbents, for the expressed purpose of supplanting gasoline's current > 300 mile driving range. Chemical hydrogen storage has been dominated by one appealing material, ammonia borane (H{sub 3}B-NH{sub 3}, AB), due to its high gravimetric capacity of hydrogen (19.6 wt %) and low molecular weight (30.7 g mol{sup -1}). In addition, AB has both hydridic and protic moieties, yielding a material from which H2 can be readily released. As such, a number of publications have described H{sub 2} release from amine boranes, yielding various rates depending on the method applied. Even though the viability of any chemical hydrogen storage system is critically dependent on efficient recyclability, reports on the latter subject are sparse, invoke the use of high energy reducing agents, and suffer from low yields. For example, the DOE recently decided to no longer pursue the use of NaBH{sub 4} as a H{sub 2} storage material, in part because of inefficient regeneration. We thus endeavored to find an energy efficient regeneration process for the spent fuel from H{sub 2} depleted AB with a minimum number of steps.

Davis, Benjamin Lee [Los Alamos National Laboratory; Gordon, John C [Los Alamos National Laboratory; Stephens, Frances [Los Alamos National Laboratory; Dixon, David A [UNIV OF ALABAMA; Matus, Myrna H [UNIV OF ALABAMA

2008-01-01T23:59:59.000Z

166

Evaluation of the potential for significant ammonia releases from Hanford waste tanks  

DOE Green Energy (OSTI)

Ammonia is ubiquitous as a component of the waste stored in the Hanford Site single-shell tanks (SSTs) and double-shell tanks (DSTs). Because ammonia is both flammable and toxic, concerns have been raised about the amount of ammonia stored in the tanks and the possible mechanisms by which it could be released from the waste into the head space inside the tanks as well as into the surrounding atmosphere. Ammonia is a safety issue for three reasons. As already mentioned, ammonia is a flammable gas and may contribute to a flammability hazard either directly, if it reaches a high enough concentration in the tank head space, or by contributing to the flammability of other flammable gases such as hydrogen (LANL 1994). Ammonia is also toxic and at relatively low concentrations presents a hazard to human health. The level at which ammonia is considered Immediately Dangerous to Life or Health (IDLH) is 300 ppm (WHC 1993, 1995). Ammonia concentrations at or above this level have been measured inside the head space in a number of SSTs. Finally, unlike hydrogen and nitrous oxide, ammonia is highly soluble in aqueous solutions, and large amounts of ammonia can be stored in the waste as dissolved gas. Because of its high solubility, ammonia behaves in a qualitatively different manner from hydrogen or other insoluble gases. A broader range of scenarios must be considered in modeling ammonia storage and release.

Palmer, B.J.; Anderson, C.M.; Chen, G.; Cuta, J.M.; Ferryman, T.A.; Terrones, G.

1996-07-01T23:59:59.000Z

167

Renewable Analytics | Open Energy Information  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon Renewable Analytics Jump to: navigation, search Name Renewable Analytics Place San Francisco,...

168

Analyte sensing mediated by adapter/carrier molecules  

DOE Patents (OSTI)

This invention relates to an improved method and system for sensing of one or more analytes. A host molecule, which serves as an adapter/carrier, is used to facilitate interaction between the analyte and the sensor element. A detectable signal is produced reflecting the identity and concentration of analyte present.

Bayley, Hagan (College Station, TX); Braha, Orit (College Station, TX); Gu, LiQun (Bryan, TX)

2002-07-30T23:59:59.000Z

169

Energy Saving in Ammonia Plant by Using Gas Turbine  

E-Print Network (OSTI)

An ammonia plant, in which the IHI-SULZER Type 57 Gas Turbine is integrated in order to achieve energy saving, has started successful operation. Tile exhaust gas of the gas turbine has thermal energy of relatively high temperature, therefore, if the thermal energy of this gas is utilized effectively, the gas turbine could be superior to effectively, the gas turbine could be superior to other thermal engines in view of total energy effectiveness. As a typical example of the above use of the gas turbine, its application in the ammonia plant has now been realized. In addition to the use of the gas turbine as the driver for the process air compressor which was driven by the steam turbine, its exhaust gas is introduced to the ammonia reformer. It leads to the saving of the reformer fuel, and subsequently the energy saving of the reformer section in the plant of about 20% has been achieved. This paper describes the outline of the project, energy saving effectiveness and investigation for the application of the gas turbine in the ammonia plant.

Uji, S.; Ikeda, M.

1981-01-01T23:59:59.000Z

170

Novel Ash Beneficiation Processes for Managing Unburned Carbon and Ammonia  

Science Conference Proceedings (OSTI)

This report describes new fly ash beneficiation concepts for managing deleterious effects of unburned carbon and ammonia contamination associated with low nitrogen oxides (low-NOx) combustion systems. The report contains technical data, scientific discussion, and a description of ongoing development and scale-up activities.

2002-12-10T23:59:59.000Z

171

Developing ammonia based thermochemical energy storage for dish power plants  

E-Print Network (OSTI)

. There are three main solar thermal concentrator technologies; central receivers, parabolic troughs temperature in standard reactors. The possibility of operating the ammonia based system using trough- bolic troughs contribute the greatest share of installed capacity, with 354 MWe of natural gas assisted

172

AOCS Official Method Cd 1b-87  

Science Conference Proceedings (OSTI)

Iodine Value of Fats and Oils Cyclohexane Method AOCS Official Method Cd 1b-87 Methods and Analyses acid agricultural analysis analytical analytical chemistry analytical methods aocs aocs methods april articles biotechnology certified chemists chloroprop

173

AOCS Official Method Cg 3-91  

Science Conference Proceedings (OSTI)

Analytical Guidelines for Assessing Oil Quality and Stability AOCS Official Method Cg 3-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION These Analytical Guide

174

Analytical Division List  

Science Conference Proceedings (OSTI)

Name AffiliationCity, State, CountryAnalytical Division2013 Members391 Members as of October 1, 2013Abdurahman, SadegWashington State UniversityPullman, WA, USAAbuzaytoun, ReemDalhousie UniversityHalifax, NS, CanadaAdcock, JacquiDeakin Universityaurn Ponds

175

THERMODYNAMIC ANALYSIS OF AMMONIA-WATER-CARBON DIOXIDE MIXTURES FOR DESIGNING NEW POWER GENERATION CYCLES  

SciTech Connect

This project was undertaken with the goal of developing a computational package for the thermodynamic properties of ammonia-water-carbon dioxide mixtures at elevated temperature and pressure conditions. This objective was accomplished by modifying an existing set of empirical equations of state for ammonia-water mixtures. This involved using the Wagner equation of state for the gas phase properties of carbon dioxide. In the liquid phase, Pitzer's ionic model was used. The implementation of this approach in the form of a computation package that can be used for the optimization of power cycles required additional code development. In particular, this thermodynamic model consisted of a large set of non-linear equations. Consequently, in the interest of computational speed and robustness that is required when applied to optimization problems, analytic gradients were incorporated in the Newton solver routines. The equations were then implemented using a stream property predictor to make initial guesses of the composition, temperature, pressure, enthalpy, entropy, etc. near a known state. The predictor's validity is then tested upon the convergence of an iteration. It proved difficult to obtain experimental data from the literature that could be used to test the accuracy of the new thermodynamic property package, and this remains a critical need for future efforts in the area. It was possible, however, to assess the feasibility of using this complicated property prediction package for power cycle design and optimization. Such feasibility was first demonstrated by modification of our Kalina cycle optimization code to use the package with either a deterministic optimizer, MINOS, or a stochastic optimizer using differential evolution, a genetic-algorithm-based technique. Beyond this feasibility demonstration, a new approach to the design and optimization of power cycles was developed using a graph theoretic approach.

Ashish Gupta

2003-01-15T23:59:59.000Z

176

AOCS Official Method To 1a-64  

Science Conference Proceedings (OSTI)

Specific Gravity AOCS Official Method To 1a-64 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

177

AOCS Official Method Tl 1a-64  

Science Conference Proceedings (OSTI)

Saponification Value AOCS Official Method Tl 1a-64 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

178

AOCS Official Method Tk 1a-64  

Science Conference Proceedings (OSTI)

Unsaponifiable Material AOCS Official Method Tk 1a-64 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

179

AOCS Official Method Cd 22-91  

Science Conference Proceedings (OSTI)

AOCS Official Method Cd 22-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION...

180

Biodiesel Utilization: Update on Recent Analytical Techniques (Presentation)  

DOE Green Energy (OSTI)

To understand and increase the use of biodiesel, analytical methods need to be shared and compared to ensure that accurate data are gathered on this complex fuel.

Alleman, T. L.; Fouts, L.; Luecke, J.; Thornton, M.; McAlpin, C.

2009-05-01T23:59:59.000Z

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


181

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network (OSTI)

are capable of using alcohol fuel alone instead of petroleumresults in the use of alcohol fuel is the reduction of air

Calvin, Melvin

2013-01-01T23:59:59.000Z

182

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network (OSTI)

King Hubbert} Figure 2 Carbon dioxide in the earth 1 sat any price, and that is the production of carbon dioxide.5 The historical record of the carbon dioxide in the earth s

Calvin, Melvin

2013-01-01T23:59:59.000Z

183

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network (OSTI)

W. and Calvin, M. J. Amer. Oil Chern. Assoc. Science,· 208,of the production of oil and alcohol from hydrocarbon-Figure 1 Cumulative U.S. crude oil discoveries as a function

Calvin, Melvin

2013-01-01T23:59:59.000Z

184

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network (OSTI)

been using the green plants' stored energy in the form ofannually renewable energy resources using green plants. 7 •the green plant to capture and store solar energy, is Brazil

Calvin, Melvin

2013-01-01T23:59:59.000Z

185

HYDROCARBONS FROM PLANTS: ANALYTICAL METHODS AND OBSERVATIONS  

E-Print Network (OSTI)

or natural gas or even oil shale (which represents anotherto transform the coal or oil shale or gaseous, fuel. There

Calvin, Melvin

2013-01-01T23:59:59.000Z

186

Analytic Nonlinear Methods for Beam Optics  

SciTech Connect

In recent years there have been major advances in the computation and use of high-order maps for the design, optimization and operation of beamlines. We will describe five practical examples for both linear and circular colliders. From least to most complex these examples will be: use of similarity transformations (FFTB design, SLC diagnosis); statistical maps (SSC smear and tune-shift); aberrations (SLC upgrade); resonance basis and nPB tracking (PEP-II design); and kick factorization (possibly LHC).

Irwin, John; /SLAC

2011-08-31T23:59:59.000Z

187

Sol-gel matrices for direct colorimetric detection of analytes  

DOE Patents (OSTI)

The present invention relates to methods and compositions for the direct detection of analytes using color changes that occur in immobilized biopolymeric material in response to selective binding of analytes to their surface. In particular, the present invention provides methods and compositions related to the encapsulation of biopolymeric material into metal oxide glass using the sol-gel method.

Charych, Deborah H. (Albany, CA); Sasaki, Darryl (Albuquerque, NM); Yamanaka, Stacey (Dallas, TX)

2000-01-01T23:59:59.000Z

188

Sol-Gel Matrices For Direct Colorimetric Detection Of Analytes  

DOE Patents (OSTI)

The present invention relates to methods and compositions for the direct detection of analytes using color changes that occur in immobilized biopolymeric material in response to selective binding of analytes to their surface. In particular, the present invention provides methods and compositions related to the encapsulation of biopolymeric material into metal oxide glass using the sol-gel method.

Charych, Deborah H. (Albany, CA); Sasaki, Darryl (Albuquerque, NM); Yamanaka, Stacey (Dallas, TX)

2002-11-26T23:59:59.000Z

189

Simulation of an ammonia plant accident using rigorous heterogeneous models: Effect of shift converters disturbances on the methanator  

Science Conference Proceedings (OSTI)

Disturbance introduced into the shift converters section of the ammonia production line may lead to problems in the ammonia production line which manifest themselves in other units of the production line. A real accident that took place in an ammonia ... Keywords: Accident, Ammonia, Catalytic reactors, Heterogeneous models, Modelling, Simulation

F. M. Alhabdan; S. S. E. H. Elnashaie

1995-02-01T23:59:59.000Z

190

Requirements for Predictive Analytics  

Science Conference Proceedings (OSTI)

It is important to have a clear understanding of how traditional Business Intelligence (BI) and analytics are different and how they fit together in optimizing organizational decision making. With tradition BI, activities are focused primarily on providing context to enhance a known set of information through aggregation, data cleansing and delivery mechanisms. As these organizations mature their BI ecosystems, they achieve a clearer picture of the key performance indicators signaling the relative health of their operations. Organizations that embark on activities surrounding predictive analytics and data mining go beyond simply presenting the data in a manner that will allow decisions makers to have a complete context around the information. These organizations generate models based on known information and then apply other organizational data against these models to reveal unknown information.

Troy Hiltbrand

2012-03-01T23:59:59.000Z

191

The Effect of Ammonia on Mercury Partitioning in Fly Ash  

Science Conference Proceedings (OSTI)

Management options and environmental assessments for fly ash are driven primarily by their physical and chemical characteristics. This report describes the results of a laboratory study on the leaching of mercury from several paired fly ash samples from facilities employing powdered activated carbon (PAC) injection for mercury control. While previous EPRI research has shown that mercury leaching from ash with PAC is negligible, it has also been found that ammonia complexes can increase the mobility of so...

2008-03-25T23:59:59.000Z

192

BLISTERING AND EXPLOSIVE DESORPTION OF IRRADIATED AMMONIA-WATER MIXTURES  

SciTech Connect

We present laboratory studies on the thermal evolution of a solid ammonia-water mixture after it has been irradiated at 20, 70, and 120 K. In samples irradiated at {<=}70 K, we observed fast outbursts that appear to indicate grain ejection and correlate well with the formation of micron-sized scattering centers. The occurrence of this phenomenon at the lower irradiation temperatures indicates that our results may be most relevant for understanding the release of gas and grains by comets and the surfaces of some of the colder icy satellites. We observe outgassing at temperatures below those where ice sublimates, which suggests that comets containing radiolyzed material may have outbursts farther from the Sun that those that are passive. In addition, the estimated size of the grains ejected from our sample is on the order of the size of E-ring particles, suggesting that our results give a plausible mechanism for how micron-sized grains could be formed from an icy surface. Finally, we propose that the presence of the {approx}4.5 {mu}m N{sub 2}O absorption band on an icy surface in outer space will serve to provide indirect evidence for radiation-processed ices that originally contained ammonia or nitrogen, which could be particularly useful since nitrogen is such a weak absorber in the infrared and ammonia is rapidly decomposed by radiolysis.

Loeffler, M. J.; Baragiola, R. A., E-mail: mark.loeffler@nasa.gov, E-mail: raul@virginia.edu [Laboratory for Atomic and Surface Physics, University of Virginia, Charlottesville, VA 29904 (United States)

2012-01-10T23:59:59.000Z

193

Analytical Division Newsletter April 2013  

Science Conference Proceedings (OSTI)

Read the March newsletter from the Analytical Division. Analytical Division Newsletter April 2013 Membership Information achievement application award Awards distinguished division Divisions fats job Join lipid lipids Member member get a member Me

194

Preliminary performance estimates and value analyses for binary geothermal power plants using ammonia-water mixtures as working fluids  

DOE Green Energy (OSTI)

The use of ammonia-water mixtures as working fluids in binary geothermal power generation systems is investigated. The available thermodynamic data is discussed and the methods of extrapolating this data to give the quantities needed to perform analyses of the system is given. Results indicated that for a system without a recuperator and with a working fluid which is 50 percent by mass of each constituent, the geofluid effectiveness (watt-hr/lbm geofluid) is 84 percent of that for the 50MW Heber Plant. The cost of generating electric power for this system was estimated to be 9 percent greater than for the Heber Plant. However, if a recuperator is incorporated in the system (using the turbine exhaust to preheat and partially boil the working fluid) the geofluid effectiveness becomes 102 percent of that for the Heber Plant, and the cost of electricity is 5-1/4 percent lower (relative to the Heber Plant) because of less expensive equipment resulting from lower pressure, better heat transfer, and less working fluid to handle for the ammonia-water plant. These results do not necessarily represent the optimum system. Because of uncertainty in thermodynamic properties, it was felt that detailed optimization was not practical at this point. It was concluded that use of nonazeotropic mixtures of fluorocarbons as working fluids should be studied before expending further effort in the investigation of the ammonia-water mixtures.

Bliem, C.J.

1983-12-01T23:59:59.000Z

195

AOCS Official Method Ai 3-75  

Science Conference Proceedings (OSTI)

Oil Content AOCS Official Method Ai 3-75 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION This

196

Investigation of Ammonia Adsorption on Fly Ash and Potential Impacts of Ammoniated Ash  

Science Conference Proceedings (OSTI)

Problems associated with ammoniated fly ash have become a major concern for coal-fired facilities in recent years due to the increased use of ammonia-based environmental control technologies. Of particular note is more frequent use of ammonia-based NOx control systems and electrostatic precipitator (ESP) conditioning with ammonia. To help power producers evaluate and mitigate the impacts of ammoniated ash, this project provides crucial information in the areas of fly ash characterization, adsorption test...

1999-12-10T23:59:59.000Z

197

Analytical Modeling | Open Energy Information  

Open Energy Info (EERE)

Analytical Modeling Analytical Modeling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Analytical Modeling Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Modeling Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Analytical Modeling: A mathematical modeling technique used for simulating, explaining, and making predictions about the mechanisms involved in complex physical processes. Other definitions:Wikipedia Reegle Introduction Analytical models are mathematical models that have a closed form solution. Or in other words the solution to the equations used to describe changes in

198

P2.7 Effect of Moisture in Ammonia on LED Device Performance and ...  

Science Conference Proceedings (OSTI)

Incorporation of oxygen into nitride layers from water vapor (moisture) in the ammonia not ... Characterization of the Absorbance Bleaching in Alinas/Algainas

199

Enhancing Law Enforcement Using Data & Visual Analytics  

E-Print Network (OSTI)

Authority of New York and New Jersey (PA NY/NJ), Pacific Northwest National Labs (PNNL), Intuidex will integrate visual analytics methods developed at PNNL to mine valuable links between entities in order Authority of New York and New Jersey (PA NY/NJ) · Pacific Northwest National Laboratory (PNNL) · Intuidex

200

Analytic theory of ICRF minority heating  

SciTech Connect

We present a one-dimensional analytic theory of the ICRF gyroresonant absorption and mode-conversion, for the problem of minority fundamental resonance. Using the wave phase-space method, and the theory of linear mode conversion therein, we obtain explicit expressions for the coefficients of transmission (T), reflection (R), conversion (C), absorption (A). 7 refs., 2 figs.

Ye, H.; Kaufman, A.N.

1989-04-01T23:59:59.000Z

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


201

Welcome to Analytical Labs  

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

Nuclear Material Dissolution from Destructive Analysis Measurements Nuclear Material Dissolution from Destructive Analysis Measurements Overview The Savannah River Site F/H Laboratories perform nuclear material dissolution of Pu/U oxides and metals plus Np oxide to support site productions/remediation projects. Nuclear material dissolutions are performed in glovebox containment via microwaves, hot blocks and hot plates. Resulting solutions are aliquotted for a variety of elemental and compound analyses. Features Varying sample size (100 mg - 30 g) High temperature digestions up to 200°C computer-controlled temperature and pressure dissolutions Excellent analyte recovery in destructive analysis Commercially-available electronic equipment with trained operators capable of handling high alpha activity levels (facility source term limit of 310 Alpha Curies)

202

ANALYTIC MODELING OF STARSHADES  

SciTech Connect

External occulters, otherwise known as starshades, have been proposed as a solution to one of the highest priority yet technically vexing problems facing astrophysics-the direct imaging and characterization of terrestrial planets around other stars. New apodization functions, developed over the past few years, now enable starshades of just a few tens of meters diameter to occult central stars so efficiently that the orbiting exoplanets can be revealed and other high-contrast imaging challenges addressed. In this paper, an analytic approach to the analysis of these apodization functions is presented. It is used to develop a tolerance analysis suitable for use in designing practical starshades. The results provide a mathematical basis for understanding starshades and a quantitative approach to setting tolerances.

Cash, Webster [Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309 (United States)

2011-09-01T23:59:59.000Z

203

Analytical Chemistry Laboratory: Progress report for FY 1988  

Science Conference Proceedings (OSTI)

The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for fiscal year 1988 (October 1987 through September 1988). The Analytical Chemistry Laboratory is a full-cost recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.

Green, D.W.; Heinrich, R.R.; Graczyk, D.G.; Lindahl, P.C.; Erickson, M.D.

1988-12-01T23:59:59.000Z

204

Energy Savings for CO2 Removal in Ammonia Plants  

E-Print Network (OSTI)

An exergy analysis of carbonate solution C02 removal systems which use solution flashing shows that there is no energy saving by using a mechanical thermocompressor instead of a steam-jet ejector. In a 1000 ShT/D ammonia plant an energy saving of approx. 27 GJ/h (GHV) of natural gas is possible by using exhaust steam from a back pressure turbine instead of L.T. shift gas as the heat supply source for a Carsol C02 removal system.

Pouilliart, R.; Van Hecke, F. C.

1981-01-01T23:59:59.000Z

205

Appendix C, Analytical Data | Department of Energy  

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

C, Analytical Data Appendix C, Analytical Data Docket No. EO-05-01: Appendix C, Analytical Data from Final Report: Particulate Emissions Testing, Unit 1, Potomac River Generating...

206

Biomass treatment method  

DOE Patents (OSTI)

A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.

Friend, Julie (Claymont, DE); Elander, Richard T. (Evergreen, CO); Tucker, III; Melvin P. (Lakewood, CO); Lyons, Robert C. (Arvada, CO)

2010-10-26T23:59:59.000Z

207

AOCS Official Method F 2a-44  

Science Conference Proceedings (OSTI)

Organically Combined Sulfuric Anhydride, Titration Method AOCS Official Method F 2a-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the

208

AOCS Official Method Ce 6-86  

Science Conference Proceedings (OSTI)

Antioxidants — Liquid Chromatographic Method AOCS Official Method Ce 6-86 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines propyl gallate (

209

AOCS Official Method Ca 19-86  

Science Conference Proceedings (OSTI)

Phospholipids in Vegetable Oils Nephelometric Method AOCS Official Method Ca 19-86 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The nephelometric method measu

210

AOCS Official Method Cc 16-60  

Science Conference Proceedings (OSTI)

Consistency Penetrometer Method AOCS Official Method Cc 16-60 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The penetrometer method provides an arbitrary measu

211

AOCS Official Method Cd 8b-90  

Science Conference Proceedings (OSTI)

Peroxide Value Acetic Acid-Isooctane Method AOCS Official Method Cd 8b-90 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determine

212

AOCS Official Method Cc 9b-55  

Science Conference Proceedings (OSTI)

Flash Point Closed Cup Method AOCS Official Method Cc 9b-55 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION These methods determine th

213

ANALYTICAL INSTRUMENTATION ORNL -1940  

Summary: Technology Description Apparatus and methods for measuring fuel content in oil. The technology uses fluorescence spectroscopy to detect fluorescent dye

214

Waste Heat Powered Ammonia Absorption Refrigeration Unit for LPG Recovery  

SciTech Connect

An emerging DOE-sponsored technology has been deployed. The technology recovers light ends from a catalytic reformer plant using waste heat powered ammonia absorption refrigeration. It is deployed at the 17,000 bpd Bloomfield, New Mexico refinery of Western Refining Company. The technology recovers approximately 50,000 barrels per year of liquefied petroleum gas that was formerly being flared. The elimination of the flare also reduces CO2 emissions by 17,000 tons per year, plus tons per year reductions in NOx, CO, and VOCs. The waste heat is supplied directly to the absorption unit from the Unifiner effluent. The added cooling of that stream relieves a bottleneck formerly present due to restricted availability of cooling water. The 350oF Unifiner effluent is cooled to 260oF. The catalytic reformer vent gas is directly chilled to minus 25oF, and the FCC column overhead reflux is chilled by 25oF glycol. Notwithstanding a substantial cost overrun and schedule slippage, this project can now be considered a success: it is both profitable and highly beneficial to the environment. The capabilities of directly-integrated waste-heat powered ammonia absorption refrigeration and their benefits to the refining industry have been demonstrated.

Donald C, Energy Concepts Co.; Lauber, Eric, Western Refining Co.

2008-06-20T23:59:59.000Z

215

ICTASDiscoveryAnalyticsCenter Sustainable  

E-Print Network (OSTI)

IDAC ICTASDiscoveryAnalyticsCenter Nanoscale Science Nano-Bio Interface Sustainable Energy on the basis of race, gender, disability, age, veteran status, national origin, religion, sexual orientation

Beex, A. A. "Louis"

216

NERSC Job Logs and Analytics  

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

& Allocations Policies Data Analytics & Visualization Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status...

217

Anaerobic digestion for methane generation and ammonia reforming for hydrogen production  

E-Print Network (OSTI)

Anaerobic digestion for methane generation and ammonia reforming for hydrogen production Accepted 24 May 2013 Available online Keywords: Anaerobic digestion Ammonia Bioenergy Bioammonia Hydrogen Anaerobic digestion-bioammonia to hydrogen (ADBH) a b s t r a c t During anaerobic digestion, organic matter

218

Removal of Ammonia and Production of Biodiesel by Chlorella sp. USTB-01  

Science Conference Proceedings (OSTI)

The release of ammonia from the industry of rare earth leads to harmful cyan bacterial bloom and consumption of non-renewable oil resources cause the energy crisis. Using an isolated strain of Chlorella sp. USTB-01, which can grow both autotrophically ... Keywords: Chlorella sp. USTB-01 01, rare-earth wastewater, ammonia nitrogen, combined photobioreactor, biodiesel

Yan Hai; Jia Xuan; He Huanju; Zhou Feng; Li Huimei; Xu Qianqian; Wang Haiou; Zhang Xinxin

2011-02-01T23:59:59.000Z

219

Removal of ammonia from contaminated air in a biotrickling filter Denitrifying bioreactor combination system  

E-Print Network (OSTI)

rights reserved. 1. Introduction Ammonia emissions are very common in operations such as composting of the difficulty of closing the nitrogen balance in systems such as compost beds which already contain signifi., Smet, E., 2002. Regeneration of a compost biofilter degrading high loads of ammonia by addition

220

Analysis of a commercial absorption-refrigeration water-ammonia (ARWA) cycle using Aspen Plus simulator  

Science Conference Proceedings (OSTI)

The Robur absorption-refrigeration-water-ammonia (ARWA) cycle is analyzed using Aspen Plus flowsheet simulator. The results are compared with experimental and some manufacturer data reported in the open literature. Among performance parameters analyzed ... Keywords: Aspen, COP, absorption, ammonia, refrigeration, simulation, water

N. A. Darwish; S. H. Al-Hashimi; A. S. Al-Mansoori

2008-08-01T23:59:59.000Z

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


221

Original paper: Validation of CFD simulation for ammonia emissions from an aqueous solution  

Science Conference Proceedings (OSTI)

In order to model and predict ammonia emissions from animal houses, it is important to determine the concentration on the emission surface correctly. In the current literature, Henry's law is usually used to model the mass transfer through the gas-liquid ... Keywords: Ammonia emission, CFD, Concentration boundary condition, Henry's law constant, Vapor-liquid equilibrium

Li Rong; Basman Elhadidi; H. Ezzat Khalifa; Peter V. Nielsen; Guoqiang Zhang

2011-02-01T23:59:59.000Z

222

Theoretical and Experimental Analysis of a Single Stage Ammonia-Water Absorption Chiller Performance  

Science Conference Proceedings (OSTI)

The ammonia-water absorption chillers are thermally driven devices producing a cooling effect. It can be operated without any use of electrical or mechanical energy. The advantage of absorption chillers is precisely that they can utilize low grade energy. ... Keywords: absorption system, performance, ammonia-water, thermodynamic model

Kong Dingfeng; Liu Jianhua; Zhang Liang; Zheng Guangping; Fang Zhiyun

2009-10-01T23:59:59.000Z

223

Fuzzy Analytical Hierarchy Process Applied to Port Logistics Efficiency Evaluation  

Science Conference Proceedings (OSTI)

This paper aims to construct analysis model of port logistics arrangement using Delphi and AHP, furthermore, establishment of fuzzy theory and analytical hierarchy process model and factor set. And calculate every index weight with the weighting method—G1 ... Keywords: Mathematical model, Fuzzy Analytical Hierarchy Process, Port Logistics, Efficiency Evaluation

Xuelian Liu

2010-05-01T23:59:59.000Z

224

Improved steamflood analytical model  

E-Print Network (OSTI)

The Jeff Jones steamflood model incorporates oil displacement by steam as described by Myhill and Stegemeier, and a three-component capture factor based on empirical correlations. The main drawback of the model however is the unsatisfactory prediction of the oil production peak: usually significantly lower than the actual. Our study focuses on improving this aspect of the Jeff Jones model. In our study, we simulated the production performance of a 5-spot steamflood pattern unit and compared the results against those based on the Jeff Jones model. Three reservoir types were simulated using 3-D Cartesian black oil models: Hamaca (9�°API), San Ardo (12�°API) and that based on the SPE fourth comparative solution project (14�°API). In the first two field cases, a 45x23x8 model was used that represented 1/8 of a 10-acre 5-spot pattern unit, using typical rock and reservoir fluid properties. In the SPE project case, three models were used: 23x12x12 (2.5 ac), 31x16x12 (5 ac) and 45x23x8 (10 ac), that represented 1/8 of a 5-spot pattern unit. To obtain a satisfactory match between simulation and Jeff Jones analytical model results of the start and height of the production peak, the following refinements to the Jeff Jones model were necessary. First, the dimensionless steam zone size AcD was modified to account for decrease in oil viscosity during steamflood and its dependence on the steam injection rate. Second, the dimensionless volume of displaced oil produced VoD was modified from its square-root format to an exponential form. The modified model gave very satisfactory results for production performance up to 20 years of simulated steamflood, compared to the original Jeff Jones model. Engineers will find the modified model an improved and useful tool for prediction of steamflood production performance.

Chandra, Suandy

2005-08-01T23:59:59.000Z

225

Analytical laboratory quality audits  

SciTech Connect

Analytical Laboratory Quality Audits are designed to improve laboratory performance. The success of the audit, as for many activities, is based on adequate preparation, precise performance, well documented and insightful reporting, and productive follow-up. Adequate preparation starts with definition of the purpose, scope, and authority for the audit and the primary standards against which the laboratory quality program will be tested. The scope and technical processes involved lead to determining the needed audit team resources. Contact is made with the auditee and a formal audit plan is developed, approved and sent to the auditee laboratory management. Review of the auditee's quality manual, key procedures and historical information during preparation leads to better checklist development and more efficient and effective use of the limited time for data gathering during the audit itself. The audit begins with the opening meeting that sets the stage for the interactions between the audit team and the laboratory staff. Arrangements are worked out for the necessary interviews and examination of processes and records. The information developed during the audit is recorded on the checklists. Laboratory management is kept informed of issues during the audit so there are no surprises at the closing meeting. The audit report documents whether the management control systems are effective. In addition to findings of nonconformance, positive reinforcement of exemplary practices provides balance and fairness. Audit closure begins with receipt and evaluation of proposed corrective actions from the nonconformances identified in the audit report. After corrective actions are accepted, their implementation is verified. Upon closure of the corrective actions, the audit is officially closed.

Kelley, William D.

2001-06-11T23:59:59.000Z

226

ECUT energy data reference series: ammonia synthesis energy-use and capital stock information  

SciTech Connect

Energy requirements for ammonia synthesis totaled 0.55 quadrillion Btu of natural gas in 1980 and 28,500 MMBtu (8.3 x 10/sup 6/ kWh) of electricity. Efficiencies ranged from 0.72 to 0.8 for natural gas and 0.65 for electricity. Ammonia production in 1980 is estimated at 21 million tones. In the year 2000, U.S. ammonia production is estimated to be between 27 to 34 million tones with 19 to 31 million tons being produced using natural gas. A most likely value of 25 million tons of ammonia from natural gas feedstock is projected. As much as 20% of the energy from natural gas fuel could be saved if a more active catalyst could be developed that would reduce the operating pressure of ammonia synthesis to 1 atm.

Young, J.K.; Johnson, D.R.

1984-07-01T23:59:59.000Z

227

Analytical Chemistry Core Capability Assessment - Preliminary Report  

Science Conference Proceedings (OSTI)

The concept of 'core capability' can be nebulous one. Even at a fairly specific level, where core capability equals maintaining essential services, it is highly dependent upon the perspective of the requestor. Samples are submitted to analytical services because the requesters do not have the capability to conduct adequate analyses themselves. Some requests are for general chemical information in support of R and D, process control, or process improvement. Many analyses, however, are part of a product certification package and must comply with higher-level customer quality assurance requirements. So which services are essential to that customer - just those for product certification? Does the customer also (indirectly) need services that support process control and improvement? And what is the timeframe? Capability is often expressed in terms of the currently utilized procedures, and most programmatic customers can only plan a few years out, at best. But should core capability consider the long term where new technologies, aging facilities, and personnel replacements must be considered? These questions, and a multitude of others, explain why attempts to gain long-term consensus on the definition of core capability have consistently failed. This preliminary report will not try to define core capability for any specific program or set of programs. Instead, it will try to address the underlying concerns that drive the desire to determine core capability. Essentially, programmatic customers want to be able to call upon analytical chemistry services to provide all the assays they need, and they don't want to pay for analytical chemistry services they don't currently use (or use infrequently). This report will focus on explaining how the current analytical capabilities and methods evolved to serve a variety of needs with a focus on why some analytes have multiple analytical techniques, and what determines the infrastructure for these analyses. This information will be useful in defining a roadmap for what future capability needs to look like.

Barr, Mary E. [Los Alamos National Laboratory; Farish, Thomas J. [Los Alamos National Laboratory

2012-05-16T23:59:59.000Z

228

Ab initio simulation of ammonia monohydrate ,,NH3"H2O... and ammonium hydroxide ,,NH4OH...  

E-Print Network (OSTI)

the whole ammonia-water system. As part of a broader ongoing study into solids in the ammonia-water system,9 pseudopotential plane-wave simulations of the static properties of ammonia monohydrate phase I AMH I and ammonium of the hydrogen bonds in AMH may exhibit properties which are transferable to much more complex molecular solids

Vocadlo, Lidunka

229

Welcome to Analytical Labs  

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

METHODS OF INTEREST METHODS OF INTEREST Microwave/hot block digestion of solids Alpha spectroscopy Gamma spectroscopy (fixed and portable) Neutron and gamma ray measurements Gas proportional counting Gas chromatography Liquid scintillation counting Uranium and plutonium concentration and isotopic abundance by thermal ionization mass spectrometry Low mass, high resolution gas analysis by mass spectrometry Metallic impurities by inductively coupled plasma emission spectrometry and mass spectrometry Anion analysis by ion selective electrode and ion chromatography Wet chemistry analysis: pH, conductivity, density, turbidity, acid/base titrations Mercury analysis Carbon analysis Low-level uranium analysis by kinetic phosphorescence Volatile organics by gas chromatography with mass spectrometer detector/GC-MS

230

Decomposition of Ammonia in IGCC Fuel Gas Streams  

SciTech Connect

The main objective of the research work is to develop technically feasible and potentially low cost processes to decompose NH{sub 3} present in coal gases at high temperatures upstream of the gas turbine. Specific objectives of the work include development of NH3 decomposition processes applicable to both air-blown and oxygen-blown coal gasification-based combined cycle power plants, Ammonia decomposition tests were carried out in a bench-scale tubular flow reactor. The flow system includes feed gas supply with flow control and pressure regulation, preheater and reactor, heaters, monitoring and control of system temperature and pressure, and feed and product analysis instrumentation. Non-catalytic NH{sub 3} decomposition tests were carried out in both Alloy RA-330 and quartz reactors. Catalytic tests were conducted only in the quartz reactor.

Qader, S.A.; Qader, Q.A. [Energy and Environmental Technology Corp., Rancho Cucamonga, CA (United States); Muzio, L.J. [Fossil Energy Research Corp., Laguna Hills, CA (United States)

1996-12-31T23:59:59.000Z

231

AOCS Official Method Ce 7-87  

Science Conference Proceedings (OSTI)

Total Tocopherols in Deodorizer Distillate AOCS Official Method Ce 7-87 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines total tocopherols

232

AOCS Official Method Cd 11-57  

Science Conference Proceedings (OSTI)

a-Monoglycerides AOCS Official Method Cd 11-57 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION This method determines ?-mo

233

AOCS Official Method Cd 7-58  

Science Conference Proceedings (OSTI)

Polyunsaturated Acids, Ultraviolet Spectrophotometric Method AOCS Official Method Cd 7-58 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The conjugated constitu

234

AOCS Official Method Da 17-52  

Science Conference Proceedings (OSTI)

Borax AOCS Official Method Da 17-52 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines borax in the sample. SCOPE ...

235

AOCS Official Method Da 18-48  

Science Conference Proceedings (OSTI)

Alkaline Silicates AOCS Official Method Da 18-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines alkaline silicates in the sample.

236

AOCS Official Method Da 9-48  

Science Conference Proceedings (OSTI)

Chlorides AOCS Official Method Da 9-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the chlorides in the sample. SCOPE...

237

AOCS Official Method Da 21-48  

Science Conference Proceedings (OSTI)

Tetrasodium Pyrophosphate AOCS Official Method Da 21-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines tetrasodium pyrophosphate.

238

AOCS Official Method Dd 4-60  

Science Conference Proceedings (OSTI)

Neutral Oil (Unsulfonated Material) in Alkylbenzene Sulfonates AOCS Official Method Dd 4-60 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determine

239

AOCS Official Method Ca 12b-92  

Science Conference Proceedings (OSTI)

Phosphorus by Direct Graphite Furnace Atomic Absorption Spectrometry AOCS Official Method Ca 12b-92 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method,

240

AOCS Official Method Ba 10a-05  

Science Conference Proceedings (OSTI)

Protein Dispersibility Index (PDI) AOCS Official Method Ba 10a-05 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the dispersible protein

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


241

AOCS Official Method Cd 14-95  

Science Conference Proceedings (OSTI)

Isolated trans Isomers Infrared Spectrometric Method AOCS Official Method Cd 14-95 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION Isolated trans bonds

242

AOCS Official Method S 4b-64  

Science Conference Proceedings (OSTI)

Methods for Testing Fatty Amidoamines AOCS Official Method S 4b-64 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE Fa

243

AOCS Official Method Ca 12-55  

Science Conference Proceedings (OSTI)

Phosphorus AOCS Official Method Ca 12-55 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines phosphorus or the equivalent phosphatide content

244

AOCS Official Method Dd 3-60  

Science Conference Proceedings (OSTI)

Sodium Alkylbenzene Sulfonate by Ultraviolet Absorption AOCS Official Method Dd 3-60 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines sodiu

245

AOCS Official Method Da 10-42  

Science Conference Proceedings (OSTI)

Unsaponified Plus Unsaponifiable Matter AOCS Official Method Da 10-42 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION This method dete

246

AOCS Official Method Db 1-48  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter, Air Oven Method AOCS Official Method Db 1-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

247

ANALYTICAL DATA SHEET hlul ANALYTICAL DEPT. - HEALTH ANI SAFETY...  

Office of Legacy Management (LM)

hlul ANALYTICAL DEPT. - HEALTH ANI SAFETY DlVlSlON Industrial Hygiene or Medical Dept. 1956 I. H. 1093 Sample Nos. 9 -Date Collected- 812 by-LLP Route to I"? Lo,--tionrOGERS...

248

Welcome to Analytical Labs  

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

Methods Methods Unique Capabilities Thermal Ion Thermal Ionization Mass Spectrometry The distribution of isotopes within uranium and plutonium materials, are precisely and accurately measured using Thermal Ionization Mass Spectrometers (TIMS). In addition to isotopic abundance measurements, isotope dilution techniques are applied to measure uranium and plutonium concentration on a wide variety of materials processed at the SRS. Rad Nuclear Nuclear Material Dissolution from Destructive Analysis Measurements The Savannah River Site F/H Laboratories perform nuclear material dissolution of Pu/U oxides and metals plus Np oxide to support site productions/remediation projects. Nuclear material dissolutions are performed in glovebox containment via microwaves, hot blocks and hot plates. Resulting solutions are aliquotted for a variety of elemental and compound analyses.

249

AOCS Official Method Ci 1-91  

Science Conference Proceedings (OSTI)

Analytical Guidelines for the Determination of Jojoba Oil Quality and Purity AOCS Official Method Ci 1-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION These A

250

AOCS Official Method Ck 1-07  

Science Conference Proceedings (OSTI)

Analytical Guidelines for Assessing Feedstock to Ensure Biodiesel Quality AOCS Official Method Ck 1-07 Methods Biofuels and Bioproducts and Biodiesel Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads ...

251

AOCS Official Method Cg 7-05  

Science Conference Proceedings (OSTI)

Techniques for Assessing the Effects of Antioxidants in Oils and Fats AOCS Official Method Cg 7-05 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION These Analytic

252

On the reactive adsorption of ammonia on activated carbons modified by impregnation with inorganic compounds  

SciTech Connect

Ammonia adsorption was studied under dynamic conditions, at room temperature, on activated carbons of different origins (coal-based, wood-based and coconut-shell-based carbons) before and after their impregnation with various inorganic compounds including metal chlorides, metal oxides and polycations. The role of humidity was evaluated by running tests in both dry and moist conditions. Adsorbents were analyzed before and after exposure to ammonia by thermal analyses, sorption of nitrogen, potentiometric titration, X-ray diffraction and FTIR spectroscopy. Results of breakthrough tests show significant differences in terms of adsorption capacity depending on the parent carbon, the impregnates and the experimental conditions. It is found that surface chemistry governs ammonia adsorption on the impregnated carbons. More precisely, it was demonstrated that a proper combination of the surface pH, the strength, type and amount of functional groups present on the adsorbents' surface is a key point in ammonia uptake. Water can have either positive or negative effects on the performance of adsorbents. It can enhance NH{sub 3} adsorption capacity since it favors ammonia dissolution and thus enables reaction between ammonium ions and carboxylic groups from the carbons' surface. On the other hand, water can also reduce the performance from the strength of adsorption standpoint. It promotes dissolution of ammonia and that ammonia is first removed from the system when the adsorbent bed is purged with air. Ammonia, besides adsorption by van der Waals forces and dissolution in water, is also retained on the surface via reactive mechanisms such as acid-base reactions (Bronsted and Lewis) or complexation. Depending on the materials used and the experimental conditions, 6-47% ammonia adsorbed is strongly retained on the surface even when the bed is purged with air.

Bandosz, T.J.; Petit, C. [CUNY City College, New York, NY (United States). Dept. of Chemistry

2009-10-15T23:59:59.000Z

253

Development of an ammonia emission protocol and preliminary emission factor for a central Texas dairy  

E-Print Network (OSTI)

A protocol was developed to measure ammonia emission concentrations from dairies using an isolation flux chamber. A hybrid dairy in Comanche county, Texas, was measured for one week each during August 2002 and January 2003. Sixty total ammonia samples were taken from the free stall barn, open lot, mixing tank, separated solids, compost, and two lagoons using the developed protocol. The ammonia concentration measurements were made using a chemiluminescence analyzer located inside a mobile laboratory. From the emission concentrations recorded, it was estimated that 9.68 metric tons of ammonia were produced from this dairy per year. An emission factor of 13.34 ± 28.80 kilograms per day per thousand head of cattle (kg/day/1000 head) was estimated for this dairy (±95% confidence intervals) during summer conditions. For winter conditions the emission factor was 12.05 ± 12.89 kg/day/1000 head. The 11% difference of the emission factors from summer to winter conditions was predominantly from the change in ambient and control volume temperatures (a mean difference of approximately 25 degrees Celsius), differences in source temperatures, and seasonal variability in husbandry. The adsorption of ammonia onto different polymer tubing used in pollutant stream conveyance was researched for possible systematic losses. Teflon and low density polyethylene (LDPE) were tested for ammonia losses with treatments of: temperature, length, and inlet concentration. Inlet concentration and temperature were significant factors used to describe ammonia adsorption for Teflon, whereas LDPE was also affected by tubing length. These factors were used to create a model to correct the summer dairy measurements for ammonia losses, resulting in an emission factor increase of 8.3% over the original value obtained from the flux chamber. A nitrogen mass balance was performed to estimate the amount of nitrogen available for ammonia formation as excreted - 177.5 kilograms per year per animal (wet basis). The amount of ammonia excreted per year was also estimated to be 26.63 kilograms per year. The measured ammonia emitted from the dairy was five times less than the ammonia excreted and thirty-six times less than the total nitrogen excreted.

Rose, Adam Joseph

2003-05-01T23:59:59.000Z

254

Bearing Analytics | Department of Energy  

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

Bearing Analytics Bearing Analytics National Clean Energy Business Plan Competition 2013 355 likes Bearing Analytics Purdue University Avoidable bearing failures cost the US industrial economy $50B in damage and downtime every year. Current bearing health monitoring systems do not adequately detect failure until it is too late. Bearing Analytics offers a patent-pending micro-sensor technology that monitors temperature and vibration directly on the bearing cage helping predict performance degradation and impending failure while improving operating, performance, and energy efficiencies. Our technology does all of that with a better accuracy, faster response time, and increased reliability over any other competing solution today. We intend to target the wind turbine industry as our initial target point

255

Bearing Analytics | Department of Energy  

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

Bearing Analytics Bearing Analytics National Clean Energy Business Plan Competition 2013 355 likes Bearing Analytics Purdue University Avoidable bearing failures cost the US industrial economy $50B in damage and downtime every year. Current bearing health monitoring systems do not adequately detect failure until it is too late. Bearing Analytics offers a patent-pending micro-sensor technology that monitors temperature and vibration directly on the bearing cage helping predict performance degradation and impending failure while improving operating, performance, and energy efficiencies. Our technology does all of that with a better accuracy, faster response time, and increased reliability over any other competing solution today. We intend to target the wind turbine industry as our initial target point

256

Bearing Analytics | Department of Energy  

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

Bearing Analytics Bearing Analytics National Clean Energy Business Plan Competition 2013 355 likes Bearing Analytics Purdue University Avoidable bearing failures cost the US industrial economy $50B in damage and downtime every year. Current bearing health monitoring systems do not adequately detect failure until it is too late. Bearing Analytics offers a patent-pending micro-sensor technology that monitors temperature and vibration directly on the bearing cage helping predict performance degradation and impending failure while improving operating, performance, and energy efficiencies. Our technology does all of that with a better accuracy, faster response time, and increased reliability over any other competing solution today. We intend to target the wind turbine industry as our initial target point

257

Video Analytics for Business Intelligence  

Science Conference Proceedings (OSTI)

Closed Circuit TeleVision (CCTV) cameras have been increasingly deployed pervasively in public spaces including retail centres and shopping malls. Intelligent video analytics aims to automatically analyze content of massive amount of public space video ...

Caifeng Shan; Fatih Porikli; Tao Xiang; Shaogang Gong

2012-04-01T23:59:59.000Z

258

Computational fluid dynamics study on the decomposition of ammonia in a selective porous membrane - article no. 42  

SciTech Connect

The development of alternative technologies for the removal of gas pollutants is an important aspect for the environmental friendliness of energy production. During coal gasification, N{sub 2} contained in coal is converted to NH{sub 3} and, as much as 50% of the ammonia in the fuel gas can be converted to nitrogen oxides (NOx). At these conditions, decomposition seems to be the only applicable solution for the removal of NH{sub 3}. The application of a high temperature catalytic membrane reactor process appears to offer an efficient and cost effective method of removing the NH{sub 3} from coal gasification gas streams. The present work examines the operation of such a selective membrane, used for the decomposition of NH{sub 3}, under a 2-D axissymetric CFD approach where the flow field, the chemical reactions and the selective porous membrane behavior are being modeled and computed. The main target of this effort was to obtain a more detailed view of the flow field and to investigate the decomposition of ammonia in comparison with a simpler 1-D modeling approach and, thus, to evaluate the advantages and disadvantages of each method.

Athanasios Sideridis; Dimitrios Koutsonikolas; Dimitrios Missirlis [Aristotle University of Thessaloniki (Greece)

2008-07-01T23:59:59.000Z

259

Impacts of pH and ammonia on the leaching of Cu(II) and Cd(II) from coal fly ash  

E-Print Network (OSTI)

Impacts of pH and ammonia on the leaching of Cu(II) and Cd(II) from coal fly ash Jianmin Wang a coal-fired power plants are implementing ammonia-based technologies to reduce NOx emissions. Excess ammonia in the flue gas often deposits on the coal fly ash. Ammonia can form complexes with many heavy

Ragsdell, Kenneth M.

260

ANALYTICAL DATA SHEET ANALYTICAL DEPT. - HEALTH Al\rD SAFETY DlVlSlON  

Office of Legacy Management (LM)

em IVIL, u-3 em IVIL, u-3 1' 1L, I -' I ANALYTICAL DATA SHEET ANALYTICAL DEPT. - HEALTH Al\rD SAFETY DlVlSlON 1956 1. H.# fL22 Industrial Hygiene or Medical Dept. Sample Nor& 3 Date Collected- 5117 by --Route to CES CES r Location IQJKER-PEMJNS Co- Type of Sample-waternalyzed for F Alpha Remarks -&I GG -- u - Beta Samples of water discharged to river during Steam clean- No, Ra ing of equipment. Oil PH Be Th Sample No. Hour Sample Description (RT Please analyze for gm/U/gal. BP-1 P- RO-Kneader BP-2 K- N-Kneader BP-3 Omera Feeder - __-- .___ -- i ___- ------I - 1 I . ----.--- - ------ .-___ _- I I - 3" - 1 ' : i ' Nt! w-d Analytical Chemistry Section: - Date Received 5-21-56 bY %b. Date Reported 5-2 Z-56 by&b. Method of Analysis Fluorimeter

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


261

Electrospray ion source with reduced analyte electrochemistry  

SciTech Connect

An electrospray ion (ESI) source and method capable of ionizing an analyte molecule without oxidizing or reducing the analyte of interest. The ESI source can include an emitter having a liquid conduit, a working electrode having a liquid contacting surface, a spray tip, a secondary working electrode, and a charge storage coating covering partially or fully the liquid contacting surface of the working electrode. The liquid conduit, the working electrode and the secondary working electrode can be in liquid communication. The electrospray ion source can also include a counter electrode proximate to, but separated from, said spray tip. The electrospray ion source can also include a power system for applying a voltage difference between the working electrodes and a counter-electrode. The power system can deliver pulsed voltage changes to the working electrodes during operation of said electrospray ion source to minimize the surface potential of the charge storage coating.

Kertesz, Vilmos (Knoxville, TN); Van Berkel, Gary (Clinton, TN)

2011-08-23T23:59:59.000Z

262

Electrospray ion source with reduced analyte electrochemistry  

DOE Patents (OSTI)

An electrospray ion (ESI) source and method capable of ionizing an analyte molecule without oxidizing or reducing the analyte of interest. The ESI source can include an emitter having a liquid conduit, a working electrode having a liquid contacting surface, a spray tip, a secondary working electrode, and a charge storage coating covering partially or fully the liquid contacting surface of the working electrode. The liquid conduit, the working electrode and the secondary working electrode can be in liquid communication. The electrospray ion source can also include a counter electrode proximate to, but separated from, said spray tip. The electrospray ion source can also include a power system for applying a voltage difference between the working electrodes and a counter-electrode. The power system can deliver pulsed voltage changes to the working electrodes during operation of said electrospray ion source to minimize the surface potential of the charge storage coating.

Kertesz, Vilmos; Van Berkel, Gary J

2013-07-30T23:59:59.000Z

263

The CRIRES Search for Planets Around the Lowest-Mass Stars. I. High-Precision Near-Infrared Radial Velocities with an Ammonia Gas Cell  

E-Print Network (OSTI)

Radial velocities measured from near-infrared spectra are a potentially powerful tool to search for planets around cool stars and sub-stellar objects. However, no technique currently exists that yields near-infrared radial velocity precision comparable to that which is routinely obtained in the visible. We describe a method for measuring high-precision relative radial velocities of cool stars from K-band spectra. The method makes use of a glass cell filled with ammonia gas to calibrate the spectrograph response similar to the iodine cell technique that has been used so successfully in the visible. Stellar spectra are obtained through the ammonia cell and modeled as the product of a Doppler-shifted template spectrum of the object and a spectrum of the cell, convolved with a variable instrumental profile model. A complicating factor is that a significant number of telluric absorption lines are present in the spectral regions containing useful stellar and ammonia lines. The telluric lines are modeled simultaneou...

Bean, Jacob L; Hartman, Henrik; Nilsson, Hampus; Wiedemann, Guenter; Reiners, Ansgar; Dreizler, Stefan; Henry, Todd J

2009-01-01T23:59:59.000Z

264

Ris-R-1504(EN) Safety assessment of ammonia as a  

E-Print Network (OSTI)

as part of the EU supported project "Ammonia Cracking for Clean Electric Power Technology" The study scenarios 17 2.4 Comparison with LPG driven vehicles 17 2.5 Comparison with gasoline-driven cars 18 2

265

Carbon Capture by a Continuous, Regenerative Ammonia-Based Scrubbing Process  

Science Conference Proceedings (OSTI)

Overview: To develop a knowledge/data base to determine whether an ammonia-based scrubbing process is a viable regenerable-capture technique that can simultaneously remove carbon dioxide, sulfur dioxide, nitric oxides, and trace pollutants from flue gas.

Resnik, K.P.; Yeh, J.T.; Pennline, H.W.

2006-10-01T23:59:59.000Z

266

Lidar Measurement of Ammonia Concentrations and Fluxes in a Plume from a Point Source  

Science Conference Proceedings (OSTI)

A field experiment was performed that demonstrated the ability of a scanning carbon dioxide (CO2) coherent lidar system to measure the concentration distribution of ammonia in a plume from a point source. This application of the differential ...

Yanzeng Zhao; W. Alan Brewer; Wynn L. Eberhard; Raul J. Alvarez

2002-12-01T23:59:59.000Z

267

Regional Modeling of Ammonia Emissions from Native Soil Sources in California  

Science Conference Proceedings (OSTI)

The development of a new emissions inventory of ammonia volatilization from native soil sources (excluding direct emissions from fertilizer application sources) for the state of California is discussed. Because a comprehensive measurement dataset ...

Christopher Potter; Steven Klooster; Charles Krauter

2003-11-01T23:59:59.000Z

268

Heat and mass transfer in a falling film absorber of ammonia-water absorption systems  

SciTech Connect

For ammonia-water generator-absorber heat exchanger (GAX) systems to work at high coefficient of performance, the heat and mass transfer components have to operate at optimum performance within a narrow range of conditions for the recovery of internal energy. In the present work, an analysis is performed to study the absorption process of an ammonia-water vapor mixture by an aqueous solution of ammonia in a falling film absorber. The combined heat and mass transfer processes involved are analyzed through an integral formulation of the continuity, momentum, energy, and diffusion equations. The effects of vapor flow direction relative to the solution, cooling ability, ammonia concentration of solution and vapor, and interfacial momentum and heat transfer rate on absorption processes are investigated. The characteristics of the absorption process are found to be governed by the relative significance of the mass transfer resistance and the driving forces between the solution film and the vapor mixture.

Kim, B. [Hongik Univ., Seoul (Korea, Republic of). Dept. of Mechanical Engineering

1998-07-01T23:59:59.000Z

269

Analytical Division Seed Oil Translation Table  

Science Conference Proceedings (OSTI)

seed oil translation table nomencalture Analytical Division Seed Oil Translation Table Analytical Chemistry Analytical Chemistry aocs articles atomic)FluorometryDifferential scanning calorimetry chemistry Chromatography (liquid detergents esters fats fo

270

Method  

E-Print Network (OSTI)

Abstract: The biodegradabilities of poly(butylene succinate) (PBS) powders in a controlled compost at 58 °C have been studied using a Microbial Oxidative Degradation Analyzer (MODA) based on the ISO 14855-2 method, entitled “Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—Method by analysis of evolved carbon dioxide—Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test”. The evolved CO2 was trapped by an additional aqueous Ba(OH)2 solution. The trapped BaCO3 was transformed into graphite via a serial vaporization and reduction reaction using a gas-tight tube and vacuum manifold system. This graphite was analyzed by accelerated mass spectrometry (AMS) to determine the percent modern carbon [pMC (sample)] based on the 14 C radiocarbon concentration. By using the theory that pMC (sample) was the sum of the pMC (compost) (109.87%) and pMC (PBS) (0%) as the respective ratio in the determined period, the CO2 (respiration) was calculated from only one reaction vessel. It was found that the biodegradabilities determined by the CO2 amount from PBS in the sample vessel were about 30 % lower than those based on the ISO method. These differences between the

Masao Kunioka; Fumi Ninomiya; Masahiro Funabashi

2009-01-01T23:59:59.000Z

271

Mitigation of SCR-Ammonia Related Aqueous Effects in a Fly Ash Pond  

Science Conference Proceedings (OSTI)

Contaminated fly ash resulting from secondary injection of ammonia to mitigate SO3 produced by a selective catalytic reduction (SCR) system altered the water quality of a fly ash pond at a coal-fired power generation station. This project attempted to improve water quality by encouraging the growth of algae in the pond to remove ammonia, while keeping other important parameters (pH, total suspended solids, Biological Oxygen Demand, and metals) within allowable limits.

2006-02-07T23:59:59.000Z

272

Chilled Ammonia Process Development Unit at We Energies Pleasant Prairie Power Plant  

Science Conference Proceedings (OSTI)

Alstom Power, Inc. (Alstom) has developed a patented process technology referred to as the chilled ammonia process (CAP) for the capture and concentration of carbon dioxide from combustion flue gas. The technology involves the use of a chilled, concentrated ammonia solution to chemically bind the carbon dioxide, followed by a thermal decomposition step to liberate the carbon dioxide for collection and further use. This report documents results from the process development unit (PDU) testing of the CAP at...

2011-01-24T23:59:59.000Z

273

Performance of an air-cooled ammonia-water absorption air conditioner at low generator temperatures  

DOE Green Energy (OSTI)

An ammonia--water absorption air conditioning system has been tested to investigate the stability of operation near the cut-off conditions. Circulation ratios were from 8 to 30. Relations for the estimation of the coefficient of performance and for the prediction of operating temperatures were derived and verified experimentally. Possible operating conditions for an air-cooled ammonia--water air conditioning system were concluded.

Dao, K.; Simmons, M.; Wolgast, R.; Wahlig, M.

1976-08-01T23:59:59.000Z

274

AOCS Official Method Ab 7-91  

Science Conference Proceedings (OSTI)

Aflatoxins AOCS Official Method Ab 7-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION This method quantitatively determines aflatoxins B 1 , B 2 , G 1

275

AOCS Official Method Bc 1-50  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Bc 1-50 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE Applicable to sampling soybean

276

AOCS Official Method Bb 1-38  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Bb 1-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE Applicable to cottonseed linter

277

AOCS Official Method Ea 1-38  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Ea 1-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION Not applicable ...

278

AOCS Official Method Cc 8f-91  

Science Conference Proceedings (OSTI)

Evaluation of Bleaching Clays and Adsorbents AOCS Official Method Cc 8f-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE ...

279

AOCS Official Method Dc 1-59  

Science Conference Proceedings (OSTI)

Sampling and Preparation of Laboratory Sample AOCS Official Method Dc 1-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION Not applica

280

AOCS Official Method Ca 18c-91  

Science Conference Proceedings (OSTI)

Determination of Lead by Direct Graphite Furnace Atomic Absorption Spectrophotometry AOCS Official Method Ca 18c-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION ...

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


281

AOCS Official Method Ba 1-38  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Ba 1-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE Applicable to oilseed slab and

282

AOCS Official Method Db 5-48  

Science Conference Proceedings (OSTI)

Total Alkalinity of Alcohol-Insoluble Matter AOCS Official Method Db 5-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

283

AOCS Official Method C 1-47  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method C 1-47 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION   SCOPE Applicable to the sampling of an

284

AOCS Official Method Ca 6a-40  

Science Conference Proceedings (OSTI)

Unsaponifiable Matter AOCS Official Method Ca 6a-40 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION Unsaponifiable matter includes those substances frequently fo

285

AOCS Official Method Ca 6b-53  

Science Conference Proceedings (OSTI)

Unsaponifiable Matter AOCS Official Method Ca 6b-53 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION Unsaponifiable matter includes those substances frequently fo

286

Ammonia usage in vapor compression for refrigeration and air-conditioning in the United States  

SciTech Connect

The impending phaseout of CFCs and HCFCs has led to a worldwide search for refrigerants that can provide equivalent performance while not damaging the environment. Long used as a working fluid in industrial and large-scale refrigeration, ammonia provides high efficiency, low initial cost, and no detrimental impact to the environment. However, its toxicity and flammability, along with technical considerations and increased operating costs, deter its use in many refrigeration and cooling applications. Utilization of ammonia in applications where its safety considerations and technical concerns can be addressed provides the best growth opportunity for adoption as a replacement refrigerant. Applications such as district or large-scale cooling, thermal storage, packaged systems, and combined systems hold promise for increased usage of ammonia. Ongoing research and development are providing solutions to technical considerations, and innovations in safety and containment of ammonia are addressing those particular concerns, but code restrictions and regulations present the greatest barrier to wider adoption of ammonia as an alternate refrigerant in the US To encourage wider use, future efforts will need to continue on improved safety and more efficient design, along with an increased emphasis on educating and informing industry and the public about the advantages ammonia and the factors restricting its use.

Fairchild, P.D.; Baxter, V.D.

1995-12-31T23:59:59.000Z

287

Analytical Chemistry Laboratory, progress report for FY 1993  

Science Conference Proceedings (OSTI)

The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1993 (October 1992 through September 1993). This annual report is the tenth for the ACL and describes continuing effort on projects, work on new projects, and contributions of the ACL staff to various programs at ANL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. The ACL also has research programs in analytical chemistry, conducts instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems. Some routine or standard analyses are done, but it is common for the Argonne programs to generate unique problems that require development or modification of methods and adaption of techniques to obtain useful analytical data. The ACL is administratively within the Chemical Technology Division (CMT), its principal ANL client, but provides technical support for many of the technical divisions and programs at ANL. The ACL has four technical groups--Chemical Analysis, Instrumental Analysis, Organic Analysis, and Environmental Analysis--which together include about 45 technical staff members. Talents and interests of staff members cross the group lines, as do many projects within the ACL.

Not Available

1993-12-01T23:59:59.000Z

288

Analytical Dashboards | Department of Energy  

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

Reporting » Analytical Dashboards Reporting » Analytical Dashboards Analytical Dashboards Public Final Occurrence Reports: Searchable information on DOE's Final Occurrence Reports since 2009, available to the public and updated daily. Computerized Accident Incident Reporting System (CAIRS) - Injury and Illness Dashboard: The Injury and Illness Dashboard is a tool that allows users to easily explore DOE occupational safety and health injury and illness information. Its features include: Graphical and tabular depictions of injury and illness information Calendar year and fiscal year incidence rates for DOE and DOE contractor total recordable cases (TRC) of injuries and illnesses and cases involving days away from work or on job transfer or restriction (DART) due to injury or illness Incidence rates of injuries and illnesses by DOE program

289

Ecologic Analytics | Open Energy Information  

Open Energy Info (EERE)

Ecologic Analytics Ecologic Analytics Jump to: navigation, search Name Ecologic Analytics Place Bloomington, Minnesota Zip 55425 Product Minnesota-based meter data management company. Coordinates 42.883574°, -90.926122° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.883574,"lon":-90.926122,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

290

Appendix C Analytical Chemistry Data  

Office of Legacy Management (LM)

Analytical Chemistry Data This page intentionally left blank Contents Section Analytical Data for Deleted Contaminants of Concern ............................................................. C1.O Mol~tezuma Creek Hardness Dat Surface Water Copper Data Summa ................ CI-9 Surface Water Radium-228 Dat Surface Water Radon-222 Data Summary ....................... ....................................... . . . . . . . . . . . C l - I 2 Alluvial Ground Water Aln~noniuu~ as Nitrogen Data Summary ....................... . . . ................................ Cl-15 Alluvial Ground Water Cobalt Data Summary ........... Alluvial Ground Water Copper Data Sumrl Alluvial Ground Water Lead Data Su~nmary ................................. C1-19 Alluvial Ground Water Lead-210 Data Sutl~rnary

291

Analytical steam injection model for layered systems  

SciTech Connect

Screening, evaluation and optimization of the steam flooding process in homogeneous reservoirs can be performed by using simple analytical predictive models. In the absence of any analytical model for layered reservoirs, at present, only numerical simulators can be used. And these are expensive. In this study, an analytical model has been developed considering two isolated layers of differing permeabilities. The principle of equal flow potential is applied across the two layers. Gajdica`s (1990) single layer linear steam drive model is extended for the layered system. The formulation accounts for variation of heat loss area in the higher permeability layer, and the development of a hot liquid zone in the lower permeability layer. These calculations also account for effects of viscosity, density, fractional flow curves and pressure drops in the hot liquid zone. Steam injection rate variations in the layers are represented by time weighted average rates. For steam zone calculations, Yortsos and Gavalas`s (1981) upper bound method is used with a correction factor. The results of the model are compared with a numerical simulator. Comparable oil and water flow rates, and breakthrough times were achieved for 100 cp oil. Results with 10 cp and 1000 cp oils indicate the need to improve the formulation to properly handle differing oil viscosities.

Abdual-Razzaq; Brigham, W.E.; Castanier, L.M.

1993-08-01T23:59:59.000Z

292

ANALYTICAL CHEMISTRY DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING NOVEMBER 15, 1963  

SciTech Connect

Research and development progress is reported on analytical instrumentation, chemical analysis of advanced reactor fuels, analytical studies of molten-salt systems, special research problems, reactor projects, effects of radiation on analytical methods, x-ray and spectrochemical analyses, spectroscopy, optical and electron microscopy, nuclear and radiochemical analyses, inorganic preparations, organic preparations, and analytical development. Service analyses are also described. Separate abstracts were prepared for each topic. (M.C.G.)

1964-02-18T23:59:59.000Z

293

Reports of the AAAI 2009 Spring Symposia: Technosocial Predictive Analytics.  

Science Conference Proceedings (OSTI)

The Technosocial Predictive Analytics AAAI symposium was held at Stanford University, Stanford, CA, March 23-25, 2009. The goal of this symposium was to explore new methods for anticipatory analytical thinking that provide decision advantage through the integration of human and physical models. Special attention was also placed on how to leverage supporting disciplines to (a) facilitate the achievement of knowledge inputs, (b) improve the user experience, and (c) foster social intelligence through collaborative/competitive work.

Sanfilippo, Antonio P.

2009-10-01T23:59:59.000Z

294

Back-calculating emission rates for ammonia and particulate matter from area sources using dispersion modeling  

E-Print Network (OSTI)

Engineering directly impacts current and future regulatory policy decisions. The foundation of air pollution control and air pollution dispersion modeling lies in the math, chemistry, and physics of the environment. Therefore, regulatory decision making must rely upon sound science and engineering as the core of appropriate policy making (objective analysis in lieu of subjective opinion). This research evaluated particulate matter and ammonia concentration data as well as two modeling methods, a backward Lagrangian stochastic model and a Gaussian plume dispersion model. This analysis assessed the uncertainty surrounding each sampling procedure in order to gain a better understanding of the uncertainty in the final emission rate calculation (a basis for federal regulation), and it assessed the differences between emission rates generated using two different dispersion models. First, this research evaluated the uncertainty encompassing the gravimetric sampling of particulate matter and the passive ammonia sampling technique at an animal feeding operation. Future research will be to further determine the wind velocity profile as well as determining the vertical temperature gradient during the modeling time period. This information will help quantify the uncertainty of the meteorological model inputs into the dispersion model, which will aid in understanding the propagated uncertainty in the dispersion modeling outputs. Next, an evaluation of the emission rates generated by both the Industrial Source Complex (Gaussian) model and the WindTrax (backward-Lagrangian stochastic) model revealed that the calculated emission concentrations from each model using the average emission rate generated by the model are extremely close in value. However, the average emission rates calculated by the models vary by a factor of 10. This is extremely troubling. In conclusion, current and future sources are regulated based on emission rate data from previous time periods. Emission factors are published for regulation of various sources, and these emission factors are derived based upon back-calculated model emission rates and site management practices. Thus, this factor of 10 ratio in the emission rates could prove troubling in terms of regulation if the model that the emission rate is back-calculated from is not used as the model to predict a future downwind pollutant concentration.

Price, Jacqueline Elaine

2004-08-01T23:59:59.000Z

295

METHOD  

E-Print Network (OSTI)

Environmental Management, Inc. It has been subject to the Agency’s peer and administrative review, and it has been approved for publication as an EPA document. The opinions, findings, and conclusions expressed herein are those of the contractor and not necessarily those of the EPA or other cooperating agencies. Mention of company or product names is not to be construed as an endorsement by the agency. Foreword The U.S. Environmental Protection Agency is charged by Congress with protecting the Nation’s land, air, and water resources. Under a mandate of national environmental laws, the Agency strives to formulate and implement actions leading to a compatible balance between human activities and the ability of natural systems to support and nurture life. To meet this mandate, EPA’s research program is providing data and technical support for solving environmental problems today and building a science knowledge base necessary to manage our ecological resources wisely, understand how pollutants affect our health, and prevent or reduce environmental risks in the future. The National Risk Management Research Laboratory is the Agency’s center for investigation of technological and management approaches for reducing risks from threats to human health and the environment. The focus of the Laboratory’s research program is on methods for the prevention and control of pollution to air, land, water and subsurface resources; protection of water quality in public water systems; remediation of contaminated sites and ground water; and prevention and control of indoor air pollution. The goal of this research effort is to catalyze development and implementation of innovative, cost-effective environmental technologies;

unknown authors

1995-01-01T23:59:59.000Z

296

Analytic properties of transition amplitudes  

E-Print Network (OSTI)

are vectors in Lorent z s pace . 10. Dirac y-mat r ' ces. It i s sually supposed that i ts precise f orm has no effe ct on the analytic pro~ rties of the integr , so t ha t i t suff i ces to t ake V = 1, al though under certain condit ions t his...

Landshoff, Peter Vincent

1962-12-07T23:59:59.000Z

297

PARABOLIC EXHAUSTIONS AND ANALYTIC COVERINGS  

E-Print Network (OSTI)

PARABOLIC EXHAUSTIONS AND ANALYTIC COVERINGS Finnur L´arusson January 31, 1993 Abstract. Let be a parabolic exhaustion on a Stein manifold X such that is strictly plurisubharmonic at its zeros. The metric to be parabolic because its logarithm is plurisubharmonic and satisfies the so-called Monge-Amp`ere equation

Lárusson, Finnur

298

From ab initio quantum chemistry to molecular dynamics: The delicate case of hydrogen bonding in ammonia  

E-Print Network (OSTI)

The ammonia dimer (NH3)2 has been investigated using high--level ab initio quantum chemistry methods and density functional theory (DFT). The structure and energetics of important isomers is obtained to unprecedented accuracy without resorting to experiment. The global minimum of eclipsed C_s symmetry is characterized by a significantly bent hydrogen bond which deviates from linearity by about 20 degrees. In addition, the so-called cyclic C_{2h} structure is extremely close in energy on an overall flat potential energy surface. It is demonstrated that none of the currently available (GGA, meta--GGA, and hybrid) density functionals satisfactorily describe the structure and relative energies of this nonlinear hydrogen bond. We present a novel density functional, HCTH/407+, designed to describe this sort of hydrogen bond quantitatively on the level of the dimer, contrary to e.g. the widely used BLYP functional. This improved functional is employed in Car-Parrinello ab initio molecular dynamics simulations of liq...

Boese, A D; Martin, J M L; Marx, D; Chandra, Amalendu; Martin, Jan M.L.; Marx, Dominik

2003-01-01T23:59:59.000Z

299

Growth of Crystalline Polyaminoborane through Catalytic Dehydrogenation of Ammonia Borane on FeB Nanoalloy  

DOE Green Energy (OSTI)

Tremendous effort has been devoted to the study of complex and chemical hydrides for hydrogen storage in the past decade[1, 2]. Ammonia Borane (NH3BH3, AB) with a hydrogen content of 19.6 wt % has received significant attention[3-5]. Methods to improve the kinetics of the step-wise dehydrogenation of AB are diverse including the uses of mesoporous frameworks[6], catalysts[7-16], and additives[17]. It was reported that when dissolving in organic solvents AB released hydrogen readily in the presence of transition metal catalysts through the formation of M???HBH2NH3 complex (where M is Ir, Ru, or Ni etc.)[8-10]; Lewis or Brønsted acids, on the other hand, react with AB in solution to form the initiating species (BH2NH3)+[11], which may have the similar function as the [BH2(NH3)2]+BH4- (DADB) in the dehydrogenation of solid AB[17, 18]. However, comparatively little study has been reported on the catalytic dehydrogenation of AB in solid form. Other important but less investigated aspects in the solid-state reaction are the characterizations of functional catalytic species and products from the step-wise dehydrogenation.

He, Teng; Wang, Junhu; Wu, Guotao; Kim, Hyun Jeong; Proffen, Thomas E.; Wu, Anan; Li, Wen; Liu, Tao; Xiong, Zhitao; Wu, Chengzhang; Chu, Hailiang; Guo, Jianping; Autrey, Thomas; Zhang, Tao; Chen, Ping

2010-11-15T23:59:59.000Z

300

DESIGN OF HYBRID POWER GENERATION CYCLES EMPLOYING AMMONIA-WATER-CARBON DIOXIDE MIXTURES  

SciTech Connect

A power cycle generates electricity from the heat of combustion of fossil fuels. Its efficiency is governed by the cycle configuration, the operating parameters, and the working fluid. Typical. designs use pure water as the fluid. in the last two decades, hybrid cycles based on ammonia-water, and carbon-dioxide mixtures as the working fluid have been proposed. These cycles may improve the power generation efficiency of Rankine cycles by 15%. Improved efficiency is important for two reasons: it lowers the cost of electricity being produced, and by reducing the consumption of fossil fuels per unit power, it reduces the generation of environmental pollutants. The goal of this project is to develop a computational optimization-based method for the design and analysis of hybrid bottoming power cycles to minimize the usage of fossil fuels. The development of this methodology has been achieved by formulating this task as that of selecting the least cost power cycle design from all possible configurations. They employ a detailed thermodynamic property prediction package they have developed under a DOE-FETC grant to model working fluid mixtures. Preliminary results from this work suggest that a pure NH{sub 3} cycle outperforms steam or the expensive Kalina cycle.

Ashish Gupta

2002-06-01T23:59:59.000Z

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


301

The Sea-Breeze Front Analytical Model  

Science Conference Proceedings (OSTI)

Analytical solutions to the nonlinear equations of motion are used to describe the sea breeze front.

Yizhak Feliks

1988-03-01T23:59:59.000Z

302

Analytical Chemistry Laboratory Progress Report for FY 1994  

Science Conference Proceedings (OSTI)

The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1994 (October 1993 through September 1994). This annual report is the eleventh for the ACL and describes continuing effort on projects, work on new projects, and contributions of the ACL staff to various programs at ANL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. The ACL also has a research program in analytical chemistry, conducts instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems. Some routine or standard analyses are done, but it is common for the Argonne programs to generate unique problems that require significant development of methods and adaption of techniques to obtain useful analytical data. The ACL has four technical groups -- Chemical Analysis, Instrumental Analysis, Organic Analysis, and Environmental Analysis -- which together include about 45 technical staff members. Talents and interests of staff members cross the group lines, as do many projects within the ACL. The Chemical Analysis Group uses wet- chemical and instrumental methods for elemental, compositional, and isotopic determinations in solid, liquid, and gaseous samples and provides specialized analytical services. Major instruments in this group include an ion chromatograph (IC), an inductively coupled plasma/atomic emission spectrometer (ICP/AES), spectrophotometers, mass spectrometers (including gas-analysis and thermal-ionization mass spectrometers), emission spectrographs, autotitrators, sulfur and carbon determinators, and a kinetic phosphorescence uranium analyzer.

Green, D.W.; Boparai, A.S.; Bowers, D.L. [and others

1994-12-01T23:59:59.000Z

303

Bioethanol production from lignocellulosic feedstock using aqueous ammonia pretreatment and simultaneous saccharification and fermentation (SSF): process development and optimization.  

E-Print Network (OSTI)

??An integrated bioconversion process, which incorporated soaking in aqueous ammonia (SAA) pretreatment and two-phase simultaneous saccharification and fermentation (TPSSF), was investigated. The TPSSF process consists… (more)

Li, Xuan

2010-01-01T23:59:59.000Z

304

Simultaneous removal of COD and ammonia from high-strength wastewater in a three-phase fluidized bed reactor.  

E-Print Network (OSTI)

??A major challenge of environmental engineering is the efficient treatment of wastewater containing high concentrations of chemical oxygen demand (COD) and ammonia. This work addresses… (more)

Wan, Li

2006-01-01T23:59:59.000Z

305

Analytical Modeling At Coso Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Modeling At Coso Geothermal Area (1980) Modeling At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Analytical Modeling At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Analytical Modeling Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis 1) Characterize a magma source. 2) To conduct reservoir modeling of a steam reservoir. Notes 1) Closed-form analytical solutions for the conduction heat transfer from various idealized magma geometries (dikes, sills, and spheres) are obtained using either the Schwarz-Christoffel transformation theorem (dikes and sills) or the 'method of images' with superposition (spheres). Comparison of these analytically determined heat flux distributions with

306

Energy Analytics | Open Energy Information  

Open Energy Info (EERE)

Energy Analytics Energy Analytics Place Brewster, New York Product New York-based energy management and curtailment company. Coordinates 48.099675°, -119.78091° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.099675,"lon":-119.78091,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

307

AOCS Official Method Ac 1-45  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Ac 1-45 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION   SCOPE Applicable to soybeans. 7BEE304BFEC99451

308

AOCS Official Method Ab 1-49  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Ab 1-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION   SCOPE Applicable to peanuts, whole nuts and shelled stoc

309

AOCS Official Method Ad 1-48  

Science Conference Proceedings (OSTI)

Sampling AOCS Official Method Ad 1-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION   SCOPE Applicable to sampling tung fruit or hulled tung f

310

PSD-IT Lab Analytical Evaluation  

E-Print Network (OSTI)

Today you will develop your skills in analytic evaluation, as you use the cognitive walkthrough method to assess different methods of interaction on the website eBay. Setting the scene In your groups, you will be acting as if you are consultants who have been called in to review the search facility available on the website eBay. As a group of user interaction design experts you have decided to use a cognitive walkthrough to conduct this evaluation. Cognitive Walkthrough (5 mins) Using your lecture notes you should conduct a cognitive evaluation of the search facility of the website eBay. Reminder: 1) The user sets a goal to be accomplished with the system (for example, "find the new Brittney Spears Album for sale"). 2) The user searches the interface for currently available actions (menu items, buttons, command-line inputs, etc.).

unknown authors

2007-01-01T23:59:59.000Z

311

Method for reducing nitrogen oxides in combustion effluents  

DOE Patents (OSTI)

Method for reducing nitrogen oxides (NO.sub.x) in the gas stream from the combustion of fossil fuels is disclosed. In a narrow gas temperature zone, NO.sub.x is converted to nitrogen by reaction with urea or ammonia with negligible remaining ammonia and other reaction pollutants. Specially designed injectors are used to introduce air atomized water droplets containing dissolved urea or ammonia into the gaseous combustion products in a manner that widely disperses the droplets exclusively in the optimum reaction temperature zone. The injector operates in a manner that forms droplet of a size that results in their vaporization exclusively in this optimum NO.sub.x -urea/ammonia reaction temperature zone. Also disclosed is a design of a system to effectively accomplish this injection.

Zauderer, Bert (Merion Station, PA)

2000-01-01T23:59:59.000Z

312

Use of ammonia to reduce the viscosity of bottoms streams produced in hydroconversion processes  

DOE Patents (OSTI)

Coal, petroleum residuum and similar carbonaceous feed materials are subjected to hydroconversion in the presence of molecular hydrogen to produce a hydroconversion effluent which is then subjected to one or more separation steps to remove lower molecular weight liquids and produce a heavy bottoms stream containing high molecular weight liquids and unconverted carbonaceous material. The viscosity of the bottoms streams produced in the separation step or steps is prevented from increasing rapidly by treating the feed to the separation step or steps with ammonia gas prior to or during the separation step or steps. The viscosity of the heavy bottoms stream produced in the final separation step is also controlled by treating these bottoms with ammonia gas. In a preferred embodiment of the invention, the effluent from the hydroconversion reactor is subjected to an atmospheric distillation followed by a vacuum distillation and the feeds to these distillations are contacted with ammonia during the distillations.

Zaczepinski, Sioma (Houston, TX); Billimoria, Rustom M. (Houston, TX); Tao, Frank (Baytown, TX); Lington, Christopher G. (Houston, TX); Plumlee, Karl W. (Baytown, TX)

1984-01-01T23:59:59.000Z

313

Evaluation of ammonia as a working fluid for a wet/dry-cooled binary geothermal plant  

DOE Green Energy (OSTI)

The concepts considered in this study involve various arrangments of the binary geothermal power cycle with advanced dry cooling schemes. Brief descriptions of the binary cycle and advanced cooling schemes are included. Also included are descriptions of the base case concept and the ammonia working fluid concept. Performance and cost estimates were developed for a wet-cooled isobutane cycle plant, wet/dry cooled isobutane cycle plant, wet-cooled ammonia cycle plant, and a wet/dry cooled ammonia cycle plant. The performance and cost estimates were calculated using the GEOCOST computer code developed at PNL. Inputs for GEOCOST were calculated based on the Heber sites. The characteristics of the wet/dry cooling system were determined using the BNWGEO computer code developed at PNL. Results of the cooling system analysis are presented, followed by results of the geothermal plant analysis. Conclusions and comments also are included.

Drost, M.K.; Huber, H.D.

1982-10-01T23:59:59.000Z

314

Unique QA/QC requirements for analytical chemistry at LANL  

Science Conference Proceedings (OSTI)

One of the missions of group NMT-1 (Nuclear Materials Technology Division/Analytical Chemistry) at Los Alamos National Laboratory (LANL) is to provide analysis of both radioactive and nonradioactive materials to address the stockpile stewardship needs of the US Department of Energy (DOE). Trace to high levels of various constituents are measured using traditional analytical methods and state-of-the-art instrumental methods. The capabilities include Pu and U assay, wet chemistry, plasma spectroscopy, mass spectrometry radiochemistry, X-ray fluorescence, anion and cation analysis, special standards preparation, surface analysis, and gas analysis. The authors are currently developing and implementing a plan to independently assess the quality of the analytical data produced by NMT-1. Nuclear materials of a matrix similar to the client`s samples but having different concentration levels of analytes that are representative of the client`s samples will be used. Well-characterized, stable, homogeneous materials have been identified as possible candidates for single-blind quality control (QC) samples. These materials include Pu metal, Pu oxide, U metal, U oxide, and U-Pu mixed oxide (MOX) with varying degrees of purity. These single-blind samples will be periodically distributed along with regular client samples to be analyzed by the aforementioned analytical methods.

Tandon, L.; Gautier, M.A.; Hammond, C.F.; Porterfield, D.R. [Los Alamos National Lab., NM (United States)

1998-12-31T23:59:59.000Z

315

Unique QA/QC requirements for analytical chemistry at LANL  

Science Conference Proceedings (OSTI)

One of the missions of group NMT-1 (Nuclear Materials Technology Division/Analytical Chemistry) at Los Alamos National Laboratory (LANL) is to provide analysis of both radioactive and nonradioactive materials to address the stockpile stewardship needs of the US Department of Energy (DOE). Trace to high levels of various constituents are measured using traditional analytical methods and state-of-the-art instrumental methods. Capabilities include Pu and U assay, wet chemistry, plasma spectroscopy, mass spectrometry radiochemistry, x-ray fluorescence, anion and cation analysis, special standards preparation, surface analysis, and gas analysis. The authors are currently developing and implementing a plan to independently assess the quality of the analytical data produced by NMT-1. Nuclear materials of a matrix similar to the client`s samples but having different concentration levels of analytes that are representative of the client`s samples will be used. Well-characterized, stable, homogeneous materials have been identified as possible candidates for single-blind quality control (QC) samples. These materials include Pu metal, Pu oxide, uranium metal, uranium oxide, and uranium-plutonium mixed oxide with varying degrees of purity. These single-blind samples will be periodically distributed along with regular client samples to be analyzed by the above mentioned analytical methods.

Tandon, L.; Gautier, M.A.; Hammond, C.F.; Porterfield, D.R.

1998-12-31T23:59:59.000Z

316

A STUDY OF THE EFFECTS OF POST-COMBUSTION AMMONIA INJECTION ON FLY ASH QUALITY: CHARACTERIZATION OF AMMONIA RELEASE FROM CONCRETE AND MORTARS CONTAINING FLY ASH AS A POZZOLANIC ADMIXTURE  

SciTech Connect

The Clean Air Act Amendments of 1990 require large reductions in emissions of NO{sub x} from coal-fired electric utility boilers. This will necessitate the use of ammonia injection, such as in selective catalytic reduction (SCR), in many power plants, resulting in the deposition of ammonia on the fly ash. The presence of ammonia could create a major barrier to fly ash utilization in concrete because of odor concerns. Although there have been limited studies of ammonia emission from concrete, little is known about the quantity of ammonia emitted during mixing and curing, and the kinetics of ammonia release. This is manifested as widely varying opinions within the concrete and ash marketing industry regarding the maximum acceptable levels of ammonia in fly ash. Therefore, practical guidelines for using ammoniated fly ash are needed in advance of the installation of many more SCR systems. The goal of this project was to develop practical guidelines for the handling and utilization of ammoniated fly ash in concrete, in order to prevent a decrease in the use of fly ash for this application. The objective was to determine the amount of ammonia that is released, over the short- and long-term, from concrete that contains ammoniated fly ash. The technical approach in this project was to measure the release of ammonia from mortar and concrete during mixing, placement, and curing. Work initially focused on laboratory mortar experiments to develop fundamental data on ammonia diffusion characteristics. Larger-scale laboratory experiments were then conducted to study the emission of ammonia from concrete containing ammoniated fly ash. The final phase comprised monitoring ammonia emissions from large concrete slabs. The data indicated that, on average, 15% of the initial ammonia was lost from concrete during 40 minutes of mixing, depending on the mix proportions and batch size. Long-term experiments indicated that ammonia diffusion from concrete was relatively slow, with greater than 50% of the initial ammonia content remaining in an 11cm thick concrete slab after 1 month. When placing concrete in an enclosed space, with negligible ventilation, it is recommended that the ammonia concentration in the concrete mix water should not exceed 110 mg NH{sub 3}/L, if the NIOSH exposure limit of 25 ppm in the air is not to be exceeded. If even a modicum of ventilation is present, then the ammonia concentration in the concrete water should be less than 170 mg/L. The maximum level of ammonia in the fly ash can then be calculated using these limits if the concrete mix proportions are known. In general, during the mixing and placement of ammonia-laden concrete, no safety concerns were encountered. The only location where the ammonia concentration attained high levels (i.e. > 25 ppm in the air) was within the concrete mixing drum.

Robert F. Rathbone; Thomas L. Robl

2002-10-30T23:59:59.000Z

317

Behavior of Ammoniated Fly Ash: Effects of Ammonia on Fly Ash Handling, Disposal, and End-Use  

Science Conference Proceedings (OSTI)

The implementation of ammonia-based nitrogen oxides (NOx) control technologies has had the undesired side effect of creating potential problems for operating units due to ammonia-contaminated fly ash. The work described in this report is a continuation of long-term EPRI efforts to address various industry concerns associated with ammoniated fly ash.

2002-02-22T23:59:59.000Z

318

Performance Analysis of Existing 600MW Coal-Fired Power Plant with Ammonia-Based CO2 Capture  

Science Conference Proceedings (OSTI)

This paper analyzes the techno-economic performance of 600 MW coal-fired power plant with and without ammonia-based CO2 capture process, based on the operating data of an existing power plant. The simulation and analysis, with fully consideration of ... Keywords: CO2 capture, aqueous ammonia, existing power plant, techno-economic performance

Gang Xu; Liqiang Duan; Mingde Zhao; Yongping Yang; Ji Li; Le Li; Haizhan Chen

2010-06-01T23:59:59.000Z

319

An intercomparison of models used to simulate the short-range atmospheric dispersion of agricultural ammonia emissions  

Science Conference Proceedings (OSTI)

Ammonia emitted into the atmosphere from agricultural sources can have an impact on nearby sensitive ecosystems, either through elevated ambient concentrations or dry/wet deposition to vegetation and soil surfaces. Short-range atmospheric dispersion ... Keywords: Agriculture, Ammonia, Atmospheric dispersion model, Evaluation, Validation

Mark R. Theobald; Per LøFstrøM; John Walker; Helle V. Andersen; Poul Pedersen; Antonio Vallejo; Mark A. Sutton

2012-11-01T23:59:59.000Z

320

Ammonia as an Alternative Energy Storage Medium for Hydrogen Fuel Cells: Scientific and Technical Review for Near-Term Stationary Power Demonstration Projects, Final Report  

E-Print Network (OSTI)

Hydrogen Using NH3-Fueled SOFC Systems,” Ammonia - The Keysolid oxide fuel cell (SOFC) systems as these are relativelyper kW in an ammonia-based SOFC system compared with about $

Lipman, Tim; Shah, Nihar

2007-01-01T23:59:59.000Z

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


321

Analytical Chemistry Laboratory. Progress report for FY 1996  

DOE Green Energy (OSTI)

The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1996. This annual report is the thirteenth for the ACL. It describes effort on continuing and new projects and contributions of the ACL staff to various programs at ANL. The ACL operates in the ANL system as a full-cost-recovery service center, but has a mission that includes a complementary research and development component: The Analytical Chemistry Laboratory will provide high-quality, cost-effective chemical analysis and related technical support to solve research problems of our clients -- Argonne National Laboratory, the Department of Energy, and others -- and will conduct world-class research and development in analytical chemistry and its applications. Because of the diversity of research and development work at ANL, the ACL handles a wide range of analytical chemistry problems. Some routine or standard analyses are done, but the ACL usually works with commercial laboratories if our clients require high-volume, production-type analyses. It is common for ANL programs to generate unique problems that require significant development of methods and adaption of techniques to obtain useful analytical data. Thus, much of the support work done by the ACL is very similar to our applied analytical chemistry research.

Green, D.W.; Boparai, A.S.; Bowers, D.L.

1996-12-01T23:59:59.000Z

322

Analytical Division Newsletter September 201/span>3  

Science Conference Proceedings (OSTI)

Read the September newsletter from the Analytical Division. Analytical Division Newsletter September 201/span>3 Membership Information achievement application award Awards distinguished division Divisions fats job Join lipid lipids Member member get a

323

Analytical Requirements for Petroleum Contaminated Soils  

E-Print Network (OSTI)

Analytical Requirements for Petroleum Contaminated Soils According to 20 NMAC 9.1.704 704. REQUIRED), or other applicable statutes. Page 1 of 1Analytical Requirements for Petroleum Contaminated Soils 4

324

Definition: Analytical Modeling | Open Energy Information  

Open Energy Info (EERE)

Analytical Modeling Jump to: navigation, search Dictionary.png Analytical Modeling 1. A simple version: A model is a simplified representation of some aspect of the real world. 2....

325

Google Analytics | OpenEI Community  

Open Energy Info (EERE)

Google Analytics Home Rmckeel's picture Submitted by Rmckeel(287) Contributor 8 November, 2012 - 13:58 OpenEI dashboard Google Analytics mediawiki OpenEI statistics wiki OpenEI web...

326

Ammonia as an Alternative Energy Storage Medium for Hydrogen Fuel Cells: Scientific and Technical Review for Near-Term Stationary Power Demonstration Projects, Final Report  

E-Print Network (OSTI)

Sources 154: 343–350, IFDC, Fertilizer Statistics Report,tonnes in 2004–2005 (IFDC, FSR, 2005). Ammonia production

Lipman, Tim; Shah, Nihar

2007-01-01T23:59:59.000Z

327

Data, information and analytics as services  

Science Conference Proceedings (OSTI)

While organizations are trying to become more agile to better respond to market changes in the midst of rapidly globalizing competition by adopting service orientation-commoditization of business processes, architectures, software, infrastructures and ... Keywords: Agile analytics, Analytics-as-a-service, Business analytics, Cloud computing, Data-as-a-service, Information-as-a-service, Service-orientation

Dursun Delen, Haluk Demirkan

2013-04-01T23:59:59.000Z

328

Using google analytics to explore ETDs use  

Science Conference Proceedings (OSTI)

This poster presents preliminary Google Analytics usage data for a collection of electronic theses and dissertations (ETDs). Correlation of page views with page type, user location, and source (referring link) shows that, during the study period, most ... Keywords: ETDs, evaluation, google analytics, usage, web analytics, web metrics

Midge Coates

2013-07-01T23:59:59.000Z

329

NATIONAL LEAD COMPANY OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT.  

Office of Legacy Management (LM)

NATIONAL LEAD COMPANY OF OHIO NATIONAL LEAD COMPANY OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET 1. H. NO. INDUSTRIAL HYGIENE AND RADIATION DEPT. ANALYTICAL CHEMISTRY SECT10 AMPLE NOS.: - ROUTE TO1 7 c, U NO:, Oil Bo Cl Beta METHOD OC ANALYSIS: Ro r/fae*3 r4tSAAQ. 5 PH DYI Th TSS COVNTINO DATA1 -BKGD .31=/cr, b EO w% SAMPLE I HOUR SAMPLE DESCRIPTION NO. DlSTRlBUTlON OF COPIES 1 Analytical Loboratory (RECORD COPI) 2 lndurtrlal Hygiene CI, Radlatlon Dept. 2 Water freatmnt Plant (Fw Wehr Samples Only) NLD-n&s-736 IREV.10/1v/60~ NATIONAL LEAD COMPANY OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET INDUSTRIAL HYGIENE AND RADIATION DEPT. ANALYTICAL CHEMISTRY SECT10 BATE RILCEIVPDI InYr I OUNTINC DATA1 IKGD - 14x1, GE0

330

Role of ammonia chemistry and coarse mode aerosols in global climatological inorganic aerosol distributions  

E-Print Network (OSTI)

, the aerosolassociated water depends on the composition of the #12;3 particles, which is determined by gas in a three dimensional chemical transport model to understand the roles of ammonia chemistry and natural precursors among modeled aerosol species selfconsistently with ambient relative humidity and natural

Zender, Charles

331

Remote Sensing of Ammonia and Sulfur Dioxide from On-Road Light  

E-Print Network (OSTI)

Remote Sensing of Ammonia and Sulfur Dioxide from On-Road Light Duty Vehicles D A N I E L A . B U R by dynamometer (16), remote sensing (17), and recently by a chase vehicle (18). Results from these studies vary

Denver, University of

332

Solar absorption aqua-ammonia absorption system simulation base on climate of Malaysia  

Science Conference Proceedings (OSTI)

Solar energy is one of the most well known green sources of energy. This research presents a feasibility study of evacuated solar thermal collector by aqua-ammonia ejector absorption systems as a small scale air conditioning unit. The modeling has been ... Keywords: ejector, evacuated tubes, solar assisted absorption system

Poorya Ooshaksaraei; Sohif Mat; M. Yahya; Ahmad Mahir Razali; Azami Zaharim; K. Sopian

2010-01-01T23:59:59.000Z

333

Nano Magnetite Particles Prepared Under the Combined Addition of Urea and Ammonia  

E-Print Network (OSTI)

Nano Magnetite Particles Prepared Under the Combined Addition of Urea and Ammonia Young-Keun Jeong 1 Nano-Materials Team, Korea Institute of Ceramic Engineering and Technology, 233-5, Gasan-precipitation, magnetite, nano particle, urea Abstract. Magnetite (Fe3O4) particles were prepared for biomedical

Lee, Jong-Heun

334

Chilled Ammonia Process Product Validation Facility at American Electric Power Mountaineer Station  

Science Conference Proceedings (OSTI)

A CO2 capture and storage (CCS) pilot plant was constructed at American Electric Power’s (AEP’s) 1300-MWe Mountaineer station in New Haven, West Virginia, employing Alstom Power’s Chilled Ammonia Process (CAP). The CAP Product Validation Facility (PVF) treated a slipstream of flue gas from ...

2012-09-30T23:59:59.000Z

335

Commissioning an animal preference chamber for behavioral studies with laying hens exposed to atmospheric ammonia  

Science Conference Proceedings (OSTI)

An environmental preference chamber (EPC) with four double-tiered compartments (C1-C4), each capable of being controlled to distinct ammonia (NH"3) concentrations and temperature, was designed, fabricated and commissioned. Preference chambers are commonly ... Keywords: Ambient conditions, Animal welfare, Automatic control, Cross-contamination

G. T. Sales, A. R. Green, R. S. Gates

2013-07-01T23:59:59.000Z

336

Ammonia in simulated Hanford double-shell tank wastes: Solubility and effects on surface tension  

Science Conference Proceedings (OSTI)

Radioactive and wastes left from defense materials production activities are temporarily stored in large underground tanks at the Hanford Site in south central Washington State (Tank Waste Science Panel 1991). Some of these wastes are in the form of a thick slurry (``double-shell slurry``) containing sodium nitrate, sodium nitrite, sodium aluminate, sodium hydroxide, sodium carbonate, organic complexants and buffering agents, complexant fragments and other minor components (Herting et al. 1992a; Herting et al. 1992b; Campbell et al. 1994). As a result of thermal and radiolytic processes, a number of gases are known to be produced by some of these stored wastes, including ammonia, nitrous oxide, nitrogen, hydrogen, and methane (Babad et al. 1991; Ashby et al. 1992; Meisel et al. 1993; Ashby et al. 1993; Ashby et al. 1994; Bryan et al. 1993; US Department of Energy 1994). Before the emplacement of a mixer pump, these gases were retained in and periodically released from Tank 241-SY-101, a double-shell tank at the Hanford Site (Babad et al. 1992; US Department of Energy 1994). Gases are believed to be retained primarily in the form of bubbles attached to solid particles (Bryan, Pederson, and Scheele 1992), with very little actually dissolved in the liquid. Ammonia is an exception. The relation between the concentration of aqueous ammonia in such concentrated, caustic mixtures and the ammonia partial pressure is not well known, however.

Norton, J.D.; Pederson, L.R.

1994-09-01T23:59:59.000Z

337

A Water Maser and Ammonia Survey of GLIMPSE Extended Green Objects (EGOs)  

E-Print Network (OSTI)

We present the results of a Nobeyama 45-m water maser and ammonia survey of all 94 northern GLIMPSE Extended Green Objects (EGOs), a sample of massive young stellar objects (MYSOs) identified based on their extended 4.5 micron emission. We observed the ammonia (1,1), (2,2), and (3,3) inversion lines, and detect emission towards 97%, 63%, and 46% of our sample, respectively (median rms ~50 mK). The water maser detection rate is 68% (median rms ~0.11 Jy). The derived water maser and clump-scale gas properties are consistent with the identification of EGOs as young MYSOs. To explore the degree of variation among EGOs, we analyze subsamples defined based on MIR properties or maser associations. Water masers and warm dense gas, as indicated by emission in the higher-excitation ammonia transitions, are most frequently detected towards EGOs also associated with both Class I and II methanol masers. 95% (81%) of such EGOs are detected in water (ammonia(3,3)), compared to only 33% (7%) of EGOs without either methanol m...

Cyganowski, C J; Rosolowsky, E; Towers, S; Meyer, J Donovan; Egusa, F; Momose, R; Robitaille, T P

2012-01-01T23:59:59.000Z

338

AN AMMONIA-WATER ABSORPTION-HIAT-PUMP CYCLE Donald Kuhlenschmidt, Member ASHRAE  

E-Print Network (OSTI)

. Merrick, Member ASHRAE ABSTRACT The scate-of-art in ammonia-water absorption cooling has been applied. Reversible absorption cycles for heating and cooling are possible but with additional cost and complexity concentration change making possible the use of a solution-cooled absorber wherin some heat of absorption can

Oak Ridge National Laboratory

339

METHOD OF IMPREGNATING A POROUS MATERIAL  

DOE Patents (OSTI)

A method of impregnating a porous body with an inorganic uranium- containing salt is outlined and comprises dissolving a water-soluble uranium- containing salt in water; saturating the intercommunicating pores of the porous body with the salt solution; infusing ammonia gas into the intercommunicating pores of the body, the ammonia gas in water chemically reacting with the water- soluble uranium-containing salt in the water solvent to form a nonwater-soluble uranium-containing precipitant; and evaporating the volatile unprecipitated products from the intercommunicating pores whereby the uranium-containing precipitate is uniformly distributed in the intercommunicating peres of the porous body.

Steele, G.N.

1960-06-01T23:59:59.000Z

340

The MADlib analytics library: or MAD skills, the SQL  

Science Conference Proceedings (OSTI)

MADlib is a free, open-source library of in-database analytic methods. It provides an evolving suite of SQL-based algorithms for machine learning, data mining and statistics that run at scale within a database engine, with no need for data import/export ...

Joseph M. Hellerstein; Christoper Ré; Florian Schoppmann; Daisy Zhe Wang; Eugene Fratkin; Aleksander Gorajek; Kee Siong Ng; Caleb Welton; Xixuan Feng; Kun Li; Arun Kumar

2012-08-01T23:59:59.000Z

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


341

Neutron noise calculations using the Analytical Nodal Method and comparisons with analytical solutions  

E-Print Network (OSTI)

of the thermal absorption cross-sections at a non-central point is shown in Fig. 4. To verify the power reactor, which shows the thermal neutron noise through a cut of the core, it is seen that the power reactor diagnostics of PWR control rod vibrations III. Application at power plant. Nucl. Sci. Eng. 99, 313­328. Pázsit

Demazière, Christophe

342

Enhanced anaerobic treatment of CSTR-digested effluent from chicken manure: The effect of ammonia inhibition  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Enhanced anaerobic treatment of CSTR-digested effluent from chicken manure. Black-Right-Pointing-Pointer The SCOD/TAN (soluble COD/total ammonia nitrogen) ratio was key controlling factor. Black-Right-Pointing-Pointer The threshold of the SCOD/TAN ratio was 2.4 at an influent pH of 8.5-9. - Abstract: The effect of ammonia inhibition was evaluated during the enhanced anaerobic treatment of digested effluent from a 700 m{sup 3} chicken-manure continuous stirred tank reactor (CSTR). A 12.3 L internal circulation (IC) reactor inoculated with an anaerobic granular sludge and operated at 35 {+-} 1 Degree-Sign C was employed for the investigation. With a corresponding organic loading rate of 1.5-3.5 kg-COD/m{sup 3} d over a hydraulic retention time of 1.5 d, a maximum volumetric biogas production rate of 1.2 m{sup 3}/m{sup 3} d and TCOD (total COD) removal efficiency ranging from 70% to 80% was achieved. However, the continual increase in the influent TAN content led to ammonia inhibition in the methanogenesis system. The SCOD/TAN (soluble COD/total ammonia nitrogen) ratio was presented to be the key controlling factor for the anaerobic treatment of semi-digested chicken manure, and further validation through shock loading and ammonia inhibition experiments was conducted. The threshold value of the SCOD/TAN ratio was determined to be 2.4 (corresponding to a TAN of 1250 mg/L) at an influent pH of 8.5-9.

Liu Zhanguang; Zhou Xuefei [Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution and Resource Reuse, Tongji University, Shanghai 200092 (China); Zhang Yalei, E-mail: zhangyalei2003@163.com [Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution and Resource Reuse, Tongji University, Shanghai 200092 (China); Zhu Hongguang [Institute of Modern Agricultural Science and Engineering, National Engineering Research Center of Protected Agriculture, Tongji University, Shanghai 200092 (China)

2012-01-15T23:59:59.000Z

343

Analytic theory of optical nano-plasmonic metamaterials  

E-Print Network (OSTI)

Recent advances in nano-fabrication techniques allow for the manufacture of optical metamaterials, bringing their unique and extra-ordinary properties to the visible regime and beyond. However, an analytical description of optical nano-plasmonic metamaterials is challenging due to the characteristic optical behaviour of metals. Here we present an analytical theory that allows to bring established microwave metamaterials models to optical wavelengths. This method is implemented for nano-scaled plasmonic wire-mesh and tri-helical metamaterials, and we obtain an accurate prediction for their dispersive behaviour at optical and near-IR wavelengths.

Demetriadou, Angela

2013-01-01T23:59:59.000Z

344

Simultaneous specimen and stage cleaning device for analytical electron microscope  

DOE Patents (OSTI)

An improved method and apparatus are provided for cleaning both a specimen stage, a specimen and an interior of an analytical electron microscope (AEM). The apparatus for cleaning a specimen stage and specimen comprising a plasma chamber for containing a gas plasma and an air lock coupled to the plasma chamber for permitting passage of the specimen stage and specimen into the plasma chamber and maintaining an airtight chamber. The specimen stage and specimen are subjected to a reactive plasma gas that is either DC or RF excited. The apparatus can be mounted on the analytical electron microscope (AEM) for cleaning the interior of the microscope.

Zaluzec, Nestor J. (Bolingbrook, IL)

1996-01-01T23:59:59.000Z

345

AOCS Official Method F 2b-44  

Science Conference Proceedings (OSTI)

Organically Combined Sulfuric Anhydride, Extraction-Titration Method AOCS Official Method F 2b-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method det

346

AOCS Official Method Ca 14-56  

Science Conference Proceedings (OSTI)

Total, Free and Combined Glycerol Iodometric-Periodic Acid Method AOCS Official Method Ca 14-56 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method deter

347

AOCS Official Method Bb 3-47  

Science Conference Proceedings (OSTI)

Cellulose Yield Pressure-Cook Method AOCS Official Method Bb 3-47 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the yield of cellulose f

348

AOCS Official Method Da 24-48  

Science Conference Proceedings (OSTI)

Sugars, Munson and Walker Method AOCS Official Method Da 24-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total sugars in the sam

349

AOCS Official Method Da 12-48  

Science Conference Proceedings (OSTI)

Rosin, McNicoll Method AOCS Official Method Da 12-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the rosin in fatty acids. ...

350

AOCS Official Method Da 25-48  

Science Conference Proceedings (OSTI)

Starch, Munson, and Walker Method AOCS Official Method Da 25-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the starch in the sam

351

AOCS Official Method Da 23-56  

Science Conference Proceedings (OSTI)

Free Glycerol Iodometric-Periodic Acid Method AOCS Official Method Da 23-56 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines free glycerol

352

AOCS Official Method F 9a-44  

Science Conference Proceedings (OSTI)

Acidity, Method A AOCS Official Method F 9a-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines free (uncombined) fatty acids, which are ca

353

AOCS Official Method F 9c-44  

Science Conference Proceedings (OSTI)

Acidity, Method C AOCS Official Method F 9c-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the free (uncombined) fatty acids which are

354

AOCS Official Method Ba 4f-00  

Science Conference Proceedings (OSTI)

Combustion Method for Determination of Crude Protein in Soybean Meal AOCS Official Method Ba 4f-00 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method de

355

AOCS Official Method Ba 4e-93  

Science Conference Proceedings (OSTI)

Generic Combustion Method for Determination of Crude Protein AOCS Official Method Ba 4e-93 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method describes

356

AOCS Official Method Ea 8-58  

Science Conference Proceedings (OSTI)

Moisture, Karl Fischer Volumetric Method AOCS Official Method Ea 8-58 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the actual water con

357

AOCS Official Method Ca 2b-38  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter Hot Plate Method AOCS Official Method Ca 2b-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture a

358

AOCS Official Method Ca 2d-25  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter Vacuum Oven Method AOCS Official Method Ca 2d-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture

359

AOCS Official Method Ea 6-94  

Science Conference Proceedings (OSTI)

Determination of Crude Glycerin, Titrimetric Method AOCS Official Method Ea 6-94 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the glyce

360

AOCS Official Method Ca 2c-25  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter Air Oven Method AOCS Official Method Ca 2c-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture an

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


361

AOCS Official Method Da 19b-42  

Science Conference Proceedings (OSTI)

Carbonates, Volumetric Evolution Method AOCS Official Method Da 19b-42 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines all of the carbonat

362

AOCS Official Method Da 19a-42  

Science Conference Proceedings (OSTI)

Carbonates, Gravimetric Absorption Method AOCS Official Method Da 19a-42 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines all of the carbon

363

AOCS Official Method F 1b-44  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter, Hot Plate Method AOCS Official Method F 1b-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture a

364

AOCS Official Method Cc 9a-48  

Science Conference Proceedings (OSTI)

Smoke, Flash and Fire Points Cleveland Open Cup Method AOCS Official Method Cc 9a-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION These methods determine the

365

AOCS Official Method F 2c-44  

Science Conference Proceedings (OSTI)

Organically Combined Sulfuric Anhydride, Ash-Gravimetric Method AOCS Official Method F 2c-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determin

366

AOCS Official Method F 9b-44  

Science Conference Proceedings (OSTI)

Acidity, Method B AOCS Official Method F 9b-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the free (uncombined) fatty acids, which ar

367

AOCS Official Method F 1a-44  

Science Conference Proceedings (OSTI)

Moisture, Distillation Method AOCS Official Method F 1a-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture by distillation wi

368

AOCS Official Method Ca 2a-45  

Science Conference Proceedings (OSTI)

Moisture Distillation Method AOCS Official Method Ca 2a-45 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture by distillation wi

369

AOCS Official Method Dd 2a-59  

Science Conference Proceedings (OSTI)

Moisture by the Distillation Method AOCS Official Method Dd 2a-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines moisture by distillation

370

AOCS Official Method Dc 2-59  

Science Conference Proceedings (OSTI)

Moisture by Distillation Method AOCS Official Method Dc 2-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines moisture by distillation with

371

AOCS Official Method Da 2b-42  

Science Conference Proceedings (OSTI)

Moisture, Distillation Method AOCS Official Method Da 2b-42 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture by distillation w

372

AOCS Official Method Da 2a-48  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter, Air Oven Method AOCS Official Method Da 2a-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture a

373

Analytical Thresholds: Determination of Minimum ...  

Science Conference Proceedings (OSTI)

... Different color channels behave differently – if possible, determine ATs for each color • ATs derived from methods based ...

2010-11-12T23:59:59.000Z

374

OCIO Technology Summit: Data Analytics | Department of Energy  

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

OCIO Technology Summit: Data Analytics OCIO Technology Summit: Data Analytics May 13, 2013 - 1:51pm Addthis OCIO Technology Summit: Data Analytics The Energy Department's Office of...

375

NATIONAL ,LEAD COMPANY OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL...  

Office of Legacy Management (LM)

OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET NO. DISTRIBUTION OF COPIES 1 Analytical Laboratory (RECORD COPP) 2 Industrial Hygiene 8 Radiotion...

376

NATIONAL LEAD COMPANY OF OHIO HEALTH AND SAFETY DIVISION - ANALYTICAL...  

Office of Legacy Management (LM)

HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET NLO NO. DISTRIBUTION OF COPIES 1 Analytical Loboratory (RECORD COPY) 2 Industrial Hygiene & Radiation Dept. 3...

377

Analytical Chemistry Laboratory progress report for FY 1984  

DOE Green Energy (OSTI)

Technical and administrative activities of the Analytical Chemistry Laboratory (ACL) are reported for fiscal year 1984. The ACL is a full-cost-recovery service center, with the primary mission of providing a broad range of technical support services to the scientific and engineering programs at ANL. In addition, ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL is administratively within the Chemical Technology Division, the principal user, but provides technical support for all of the technical divisions and programs at ANL. The ACL has three technical groups - Chemical Analysis, Instrumental Analysis, and Organic Analysis. Under technical activities 26 projects are briefly described. Under professional activities, a list is presented for publications and reports, oral presentations, awards and meetings attended. 6 figs., 2 tabs.

Green, D.W.; Heinrich, R.R.; Jensen, K.J.; Stetter, J.R.

1985-03-01T23:59:59.000Z

378

Complete genome sequence of Nitrosomonas sp. Is79, an ammonia oxidizing bacterium adapted to low ammonium concentrations  

Science Conference Proceedings (OSTI)

Nitrosomonas sp. Is79 is a chemolithoautotrophic ammonia-oxidizing bacterium that belongs to the family Nitrosomonadaceae within the phylum Proteobacteria. Ammonia oxidation is the first step of nitrification, an important process in the global nitrogen cycle ultimately resulting in the production of nitrate. Nitrosomonas sp. Is79 is an ammonia oxidizer of high interest because it is adapted to low ammonium and can be found in freshwater environments around the world. The 3,783,444-bp chromosome with a total of 3,553 protein coding genes and 44 RNA genes was sequenced by the DOE-Joint Genome Institute Program CSP 2006.

Bollmann, Annette [Miami University, Oxford, OH; Sedlacek, Christopher J [Miami University, Oxford, OH; Laanbroek, Hendrikus J [Netherlands Institute of Ecology (NIOO-KNAW); Suwa, Yuichi [Chuo University, Tokyo, Japan; Stein, Lisa Y [University of California, Riverside; Klotz, Martin G [University of Louisville, Louisville; Arp, D J [Oregon State University; Sayavedra-Soto, LA [Oregon State University; Lu, Megan [Los Alamos National Laboratory (LANL); Bruce, David [Los Alamos National Laboratory (LANL); Detter, J. Chris [U.S. Department of Energy, Joint Genome Institute; Tapia, Roxanne [Los Alamos National Laboratory (LANL); Han, James [U.S. Department of Energy, Joint Genome Institute; Woyke, Tanja [U.S. Department of Energy, Joint Genome Institute; Lucas, Susan [U.S. Department of Energy, Joint Genome Institute; Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Pennacchio, Len [U.S. Department of Energy, Joint Genome Institute; Nolan, Matt [U.S. Department of Energy, Joint Genome Institute; Land, Miriam L [ORNL; Huntemann, Marcel [U.S. Department of Energy, Joint Genome Institute; Deshpande, Shweta [U.S. Department of Energy, Joint Genome Institute; Han, Cliff [Los Alamos National Laboratory (LANL); Chen, Amy [U.S. Department of Energy, Joint Genome Institute; Kyrpides, Nikos C [U.S. Department of Energy, Joint Genome Institute; Mavromatis, K [U.S. Department of Energy, Joint Genome Institute; Markowitz, Victor [U.S. Department of Energy, Joint Genome Institute; Szeto, Ernest [U.S. Department of Energy, Joint Genome Institute; Ivanova, N [U.S. Department of Energy, Joint Genome Institute; Mikhailova, Natalia [U.S. Department of Energy, Joint Genome Institute; Pagani, Ioanna [U.S. Department of Energy, Joint Genome Institute; Pati, Amrita [U.S. Department of Energy, Joint Genome Institute; Peters, Lin [U.S. Department of Energy, Joint Genome Institute; Ovchinnikova, Galina [U.S. Department of Energy, Joint Genome Institute; Goodwin, Lynne A. [Los Alamos National Laboratory (LANL)

2013-01-01T23:59:59.000Z

379

Solar fuels and chemicals system design study (ammonia/nitric acid production process). Volume 2. Conceptual design. Final report  

DOE Green Energy (OSTI)

As part of the Solar Central Receiver Fuels and Chemicals Program, Foster Wheeler Solar Development Corporation (FWSDC), under contract to Sandia National Laboratories-Livermore (SNLL), developed a conceptual design of a facility to produce ammonia and nitric acid using solar energy as the principal external source of process heat. In the selected process, ammonia is produced in an endothermic reaction within a steam methane (natural gas) reformer. The heat of reaction is provided by molten carbonate salt heated by both a solar central receiver and an exothermic ammonia-fired heater. After absorption by water, the product of the latter reaction is nitric acid.

Not Available

1986-06-01T23:59:59.000Z

380

Ocean thermal plantships for production of ammonia as the hydrogen carrier.  

Science Conference Proceedings (OSTI)

Conventional petroleum, natural gas, and coal are the primary sources of energy that have underpinned modern civilization. Their continued availability in the projected quantities required and the impacts of emission of greenhouse gases (GHGs) on the environment are issues at the forefront of world concerns. New primary sources of energy are being sought that would significantly reduce the emissions of GHGs. One such primary source that can help supply energy, water, and fertilizer without GHG emissions is available in the heretofore unexploited thermal gradients of the tropical oceans. The world's oceans are the largest natural collector and reservoir of solar energy. The potential of ocean energy is limitless for producing base-load electric power or ammonia as the hydrogen carrier and fresh water from seawater. However, until now, ocean energy has been virtually untapped. The general perception is that ocean thermal energy is limited to tropical countries. Therefore, the full potential of at-sea production of (1) ammonia as a hydrogen carrier and (2) desalinated water has not been adequately evaluated. Using ocean thermal plantships for the at-sea co-production of ammonia as a hydrogen carrier and desalinated water offer potential energy, environmental, and economic benefits that support the development of the technology. The introduction of a new widespread solution to our projected energy supply requires lead times of a decade or more. Although continuation of the ocean thermal program from the 1970s would likely have put us in a mitigating position in the early 2000s, we still have a window of opportunity to dedicate some of our conventional energy sources to the development of this renewable energy by the time new sources would be critically needed. The primary objective of this project is to evaluate the technical and economic viability of ocean thermal plantships for the production of ammonia as the hydrogen carrier. This objective is achieved by completing project tasks that consist of updating the John Hopkins University/Applied Physics Laboratory (JHU/APL) pilot plantship design and extrapolating it to commercial plantships, evaluating a new energy-efficient ammonia synthesis process, evaluating the co-production of desalinated water on plantships, and developing a conceptual design of a satellite plantships system for commercial-scale ammonia production. In addition, an industrial workshop was organized to present the results and develop future goals for commercialization of ocean thermal plantships by 2015. The following goals, arranged in chronological order, were examined at the workshop: (1) Global displacement of petroleum-fuel-based (diesel, fuel oil, naphtha) power generation for freeing up these fuels for transportation, chemical feedstock, and other high-valued uses; (2) At-sea production of desalinated water for regions of critical water shortages; (3) Displacement of carbon-based feed stocks and energy for production of ammonia fertilizers; (4) Development of hydrogen supply to allow economic processing of heavy crude oils and upgrading oil sands; (5) Development of ammonia-fueled distributed energy to displace natural-gas fueled power generation to free up natural gas for higher-value uses and the mitigation of issues associated with imported liquefied natural gas (LNG); and (6) Use of ammonia as a hydrogen carrier for transportation.

Panchal, C.B.; Pandolfini, P. P.; Kumm, W. H.; Energy Systems; Johns Hopkins Univ.; Arctic Energies, Ltd.

2009-12-02T23:59:59.000Z

Note: This page contains sample records for the topic "analytical method ammonia" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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381

Widget:AnalyticsSummary | Open Energy Information  

Open Energy Info (EERE)

AnalyticsSummary AnalyticsSummary Jump to: navigation, search Google Analytics widget that returns an HTML summary of site-wide analytics. Use any arbitrary number of days; for instance, 30-31 days will say "a month", 7 days will say "a week", 1 day will say "a day", 365 days will say "a year", and all other day rates will say "n days". How to call it: {{#Widget:AnalyticsSummary|days=30}} Example Output Loading... Statistics summary for the last 1 7 30 365 days Retrieved from "http://en.openei.org/w/index.php?title=Widget:AnalyticsSummary&oldid=535712" Category: Widgets What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

382

Contained radiological analytical chemistry module  

DOE Patents (OSTI)

A system which provides analytical determination of a plurality of water chemistry parameters with respect to water samples subject to radiological contamination. The system includes a water sample analyzer disposed within a containment and comprising a sampling section for providing predetermined volumes of samples for analysis; a flow control section for controlling the flow through the system; and a gas analysis section for analyzing samples provided by the sampling system. The sampling section includes a controllable multiple port valve for, in one position, metering out sample of a predetermined volume and for, in a second position, delivering the material sample for analysis. The flow control section includes a regulator valve for reducing the pressure in a portion of the system to provide a low pressure region, and measurement devices located in the low pressure region for measuring sample parameters such as pH and conductivity, at low pressure. The gas analysis section which is of independent utility provides for isolating a small water sample and extracting the dissolved gases therefrom into a small expansion volume wherein the gas pressure and thermoconductivity of the extracted gas are measured.

Barney, David M. (Scotia, NY)

1989-01-01T23:59:59.000Z

383

Contained radiological analytical chemistry module  

DOE Patents (OSTI)

A system which provides analytical determination of a plurality of water chemistry parameters with respect to water samples subject to radiological contamination. The system includes a water sample analyzer disposed within a containment and comprising a sampling section for providing predetermined volumes of samples for analysis; a flow control section for controlling the flow through the system; and a gas analysis section for analyzing samples provided by the sampling system. The sampling section includes a controllable multiple port valve for, in one position, metering out sample of a predetermined volume and for, in a second position, delivering the material sample for analysis. The flow control section includes a regulator valve for reducing the pressure in a portion of the system to provide a low pressure region, and measurement devices located in the low pressure region for measuring sample parameters such as pH and conductivity, at low pressure. The gas analysis section which is of independent utility provides for isolating a small water sample and extracting the dissolved gases therefrom into a small expansion volume wherein the gas pressure and thermoconductivity of the extracted gas are measured.

Barney, David M. (Scotia, NY)

1990-01-01T23:59:59.000Z

384

Nanomechanical Sensor Detects and Identifies Chemical Analytes  

ORNL 2010-G00612/jcn UT-B ID 200802066 Nanomechanical Sensor Detects and Identifies Chemical Analytes Technology Summary ORNL researchers developed a ...

385

AN ANALYTIC CENTER CUTTING PLANE METHOD IN CONIC PROGRAMMING  

E-Print Network (OSTI)

government. The decoration was awarded by Romanian President Traian Basescu in recognition of Friling

Mitchell, John E.

386

A rapid analytical pyrolysis method - Alfalfa (Medicago sativa)  

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

Increase in 4-coumaryl alcohol (H) units during lignification in Increase in 4-coumaryl alcohol (H) units during lignification in alfalfa (Medicago sativa) alters extractability and molecular weight of lignin Angela Ziebell 1,2 , Kristen Gracom ,1,2 , Rui Katahira 1 , Fang Chen 3,4 , Yunqiao Pu 5,6 , Art Ragauskas 5,6 , Richard A. Dixon 3,4 and Mark Davis 1,2 1-National Bioenergy Center, National Renewable Energy Laboratory, Golden, CO 80401-3393; 2-Bioenergy Science Center, National Renewable Energy Laboratory, 1617 Golden, CO 80401-3393; 3-Samuel Roberts Noble Foundation, Ardmore, OK 73401; 4-Bioenergy Science Center, Ardmore, OK 73401; 5-Institute of Paper Science and Technology at Georgia Tech., Atlanta, GA 30318; 6-Bioenergy Science Center, Georgia Tech., Atlanta, GA 30318 Running head: Increase in coumaryl alcohol units alters lignin molecular weight

387

Early Test Facilities and Analytic Methods for Radiation Shielding  

SciTech Connect

This report represents a compilation of eight papers presented at the 1992 American Nuclear Society/European Nuclear Society International Meeting held in Chicago, Illinois on November 15 20,1992. The meeting is of special significance since it commemorates the 50th anniversary of the first controlled nuclear chain reaction, which occurred, not coincidentally, in Chicago. The papers contained in this report were presented in a special session organized by the Radiation Protection and Shielding Division in keeping with the historical theme of the meeting.

Ingersoll, D.T.

1992-01-01T23:59:59.000Z

388

Analytical value at risk methods in the financial electricity market.  

E-Print Network (OSTI)

??Market risk is among the most important sources of risk for companies in the financial and commodity markets. Proper estimation of market risk has become… (more)

Javanainen, Timo

2007-01-01T23:59:59.000Z

389

Putting synchrotron radiation to work for technology: Analytic methods  

SciTech Connect

This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS ; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

Not Available

1992-02-01T23:59:59.000Z

390

Putting synchrotron radiation to work for technology: Analytic methods  

Science Conference Proceedings (OSTI)

This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS?; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

Not Available

1992-02-01T23:59:59.000Z

391

FGD Chemistry and Analytical Methods Handbook, Volumes 1-3  

Science Conference Proceedings (OSTI)

Designers and operators of flue gas desulfurization (FGD) systems need information about the chemistry of the SO2 removal process to evaluate process performance. This authoritative handbook of FGD chemistry can assist utilities in selecting, designing, starting up, and operating SO2 wet scrubbing systems.

1984-07-01T23:59:59.000Z

392

Analytical evaluation of the electrostatic potential for diatomic molecules  

Science Conference Proceedings (OSTI)

The technique of expanding Lowdin alpha-functions in a Taylor series has been further developed and applied to the problem of the electrostatic potential due to H{sub 2} with given 1s, 2s, 2p Slater-type orbitals. In contrast to other methods, the approach is completely analytic, and capable of arbitrary precision. The ultimate accuracy of our method is dependent upon the number of partial waves used; here by use of only 13 harmonics excellent results are achieved. The methods are readily generalized to larger molecules. The electron-molecule static interaction potentials is of central importance to calculations of cross sections for electron-molecule collisions. In this paper, using the diatomic hydrogen molecule of Fraga and Ransil, the authors introduce a fully analytic method and make a few comparisons with computer runs using the codes of Morrison and Schmid et al. They, as well as others, need numerical integrals for the potential. The authors analytical methods avoid cancellation errors and singularities by expanding the exponentials in the Lowdin alpha-functions, which are used to represent displaced orbitals in a spherical harmonic series.

Jones, H.W.; Etemadi, B.; Weatherford, C.A.

1988-01-01T23:59:59.000Z

393

Balance Calibration and Use in an Analytical Environment ...  

Science Conference Proceedings (OSTI)

... the sources of weighing errors in analytical environments, methodologies for ... to use of balances in an analytical environment where compliance ...

2013-02-19T23:59:59.000Z

394

AOCS Official Method Cb 6-86  

Science Conference Proceedings (OSTI)

Aflatoxins M1 and M2 in Dairy Products AOCS Official Method Cb 6-86 Methods Analytical Chemistry Methods Downloads Methods Downloads Methods and Analyses DEFINITION This method determines aflatoxins M 1...

395

AOCS Official Method Bb 2-38  

Science Conference Proceedings (OSTI)

Oil AOCS Official Method Bb 2-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the substances extracted by petroleum ether under the con

396

AOCS Official Method Bd 3-52  

Science Conference Proceedings (OSTI)

Oil AOCS Official Method Bd 3-52 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the substances extracted by commercial hexane under the c

397

AOCS Official Method Ce 2-66  

Science Conference Proceedings (OSTI)

Preparation of Methyl Esters of Fatty Acids AOCS Official Method Ce 2-66 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method provides a means for prepari

398

AOCS Official Method Ch 1-91  

Science Conference Proceedings (OSTI)

Preparation of Methyl Esters of Long-Chain Fatty Acids AOCS Official Method Ch 1-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method provides a means

399

AOCS Official Method Da 8-48  

Science Conference Proceedings (OSTI)

Total Anhydrous Soap and Combined Alkali AOCS Official Method Da 8-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total anhydrous

400

AOCS Official Method F 4-44  

Science Conference Proceedings (OSTI)

Total Active Ingredients AOCS Official Method F 4-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total active ingredients as they

Note: This page contains sample records for the topic "analytical method ammonia" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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401

AOCS Official Method Ch 2-91  

Science Conference Proceedings (OSTI)

Determination of Fatty Acids in Olive Oils by Capillary GLC AOCS Official Method Ch 2-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method is for the d

402

AOCS Official Method Cd 26-96  

Science Conference Proceedings (OSTI)

Stigmastadienes in Vegetable Oils AOCS Official Method Cd 26-96 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This is a rigorous method for the determination o

403

AOCS Official Method Cd 25-96  

Science Conference Proceedings (OSTI)

Heat Transfer Fluids in Oils – Dowtherm TM by GC AOCS Official Method Cd 25-96 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines t

404

AOCS Official Method Da 28-39  

Science Conference Proceedings (OSTI)

Screen Test AOCS Official Method Da 28-39 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the relative degree of fineness of the sample....

405

AOCS Official Method Dd 5-92  

Science Conference Proceedings (OSTI)

Determination of Sodium Linear Alkylbenzene Sulfonate (LAS) Color AOCS Official Method Dd 5-92 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determ

406

AOCS Official Method Da 26-42  

Science Conference Proceedings (OSTI)

Volatile Hydrocarbons AOCS Official Method Da 26-42 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines hydrocarbons which are volatile with s

407

AOCS Official Method F 10-44  

Science Conference Proceedings (OSTI)

Water-Immiscible Organic Solvents AOCS Official Method F 10-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines water-immiscible organic so

408

AOCS Official Method Cd 27-96  

Science Conference Proceedings (OSTI)

Steroidal Hydrocarbons in Vegetable Oils AOCS Official Method Cd 27-96 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method should be used for the determi

409

AOCS Official Method Da 4a-48  

Science Conference Proceedings (OSTI)

Free Acid or Free Alkali AOCS Official Method Da 4a-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the free (uncombined) acid or alkal

410

AOCS Official Method Db 3-48  

Science Conference Proceedings (OSTI)

Free Acid or Free Alkali AOCS Official Method Db 3-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the free (uncombined) acid as oleic

411

AOCS Official Method Cd 3e-02  

Science Conference Proceedings (OSTI)

Determination of Alkalinity in Fats and Oils AOCS Official Method Cd 3e-02 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the alkalinity

412

AOCS Official Method Cd 1c-85  

Science Conference Proceedings (OSTI)

Calculated Iodine Value AOCS Official Method Cd 1c-85 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the iodine value for edible oils dir

413

AOCS Official Method Da 31-58  

Science Conference Proceedings (OSTI)

Copper AOCS Official Method Da 31-58 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines trace quantities of copper in soap and soap products.

414

AOCS Official Method Da 22-48  

Science Conference Proceedings (OSTI)

Sulfates AOCS Official Method Da 22-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines all of the water-soluble inorganic sulfates in the

415

AOCS Official Method Da 15-48  

Science Conference Proceedings (OSTI)

Iodine Value, Wijs Method AOCS Official Method Da 15-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The iodine value is a measure of the unsaturation of the

416

AOCS Official Method Da 6-48  

Science Conference Proceedings (OSTI)

Water-Insoluble Matter AOCS Official Method Da 6-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines water-insoluble matter in the sample....

417

AOCS Official Method Da 13-48  

Science Conference Proceedings (OSTI)

Titer Test AOCS Official Method Da 13-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the solidification point of the fatty acids....

418

AOCS Official Method Cj 4-00  

Science Conference Proceedings (OSTI)

Spreadability AOCS Official Method Cj 4-00 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines a measure of spreadability of semi-solid m

419

AOCS Official Method Ce 5c-93  

Science Conference Proceedings (OSTI)

Individual Triglycerides in Oils and Fats by HPLC AOCS Official Method Ce 5c-93 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method is for the separation

420

AOCS Official Method Ba 6-84  

Science Conference Proceedings (OSTI)

Crude Fiber AOCS Official Method Ba 6-84 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines, as crude fiber, the loss on incineration of the

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


421

AOCS Official Method Cj 1-94  

Science Conference Proceedings (OSTI)

DSC Melting Properties of Fats and Oils AOCS Official Method Cj 1-94 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The method determines thermal properties of

422

AOCS Official Method Ca 3c-01  

Science Conference Proceedings (OSTI)

Detection of a Volatile Organic Contaminant by GC-MS AOCS Official Method Ca 3c-01 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method describes the dete

423

AOCS Official Method Cd 25b-07  

Science Conference Proceedings (OSTI)

Thermal Heating Fluids in Vegetable Oils AOCS Official Method Cd 25b-07 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method quantitatively determines the

424

AOCS Official Method Ci 2-91  

Science Conference Proceedings (OSTI)

Detection of Triglyceride Adulteration of Jojoba Oil AOCS Official Method Ci 2-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The method uses thin-layer chro

425

AOCS Official Method Ca 3a-46  

Science Conference Proceedings (OSTI)

Insoluble Impurities AOCS Official Method Ca 3a-46 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines dirt, meal, and other foreign substance

426

AOCS Official Method Cc 13e-92  

Science Conference Proceedings (OSTI)

Color Lovibond Method Using Color Glasses Calibrated in Accordance with the Lovibond Tintometer Color Scale AOCS Official Method Cc 13e-92 Methods Methods and Analyses Methods Downloads Methods Downloads Analytical Chemistry D

427

AOCS Official Method Cd 11d-96  

Science Conference Proceedings (OSTI)

Mono- and Diglycerides Determination by HPLC-ELSD AOCS Official Method Cd 11d-96 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This standard describes a method

428

AOCS Official Method Cj 2-95  

Science Conference Proceedings (OSTI)

X-Ray Diffraction Analysis of Fats AOCS Official Method Cj 2-95 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The method determines the short and long spacing

429

AOCS Official Method Dc 5-59  

Science Conference Proceedings (OSTI)

Combined Alcohols AOCS Official Method Dc 5-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines total fatty alcohols and permits estimation

430

AOCS Official Method Dc 6-59  

Science Conference Proceedings (OSTI)

Alkalinity AOCS Official Method Dc 6-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the alkalinity or acidity of fatty alkyl sulfates.

431

AOCS Official Method Dc 7-59  

Science Conference Proceedings (OSTI)

Sodium Sulfate AOCS Official Method Dc 7-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the sodium sulfate in fatty alkyl sulfates by

432

AOCS Official Method Dc 3a-59  

Science Conference Proceedings (OSTI)

Alcohol-Soluble Matter AOCS Official Method Dc 3a-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total alcohol-soluble matter in a

433

AOCS Official Method Dc 8-59  

Science Conference Proceedings (OSTI)

Unsulfated Material AOCS Official Method Dc 8-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines unsulfated fatty alcohols in fatty alkyl

434

AOCS Official Method Ca 9a-52  

Science Conference Proceedings (OSTI)

Refining Loss AOCS Official Method Ca 9a-52 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the loss of free fatty acids, oil, and impurit

435

AOCS Official Method Ca 2e-84  

Science Conference Proceedings (OSTI)

Moisture Karl Fischer Reagent AOCS Official Method Ca 2e-84 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the actual water content of fa

436

AOCS Official Method Cc 13b-45  

Science Conference Proceedings (OSTI)

Color Wesson Method Using Color Glasses Calibrated in Accordance with the AOCS-Tintometer Color Scale AOCS Official Method Cc 13b-45 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINIT

437

AOCS Official Method Cc 13j-97  

Science Conference Proceedings (OSTI)

Color AOCS Official Method Cc 13j-97 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines color of refined and refined-bleached-deodorized

438

AOCS Official Method Cc 12-59  

Science Conference Proceedings (OSTI)

Titer Test AOCS Official Method Cc 12-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the solidification point of a mixture of fatty ac

439

AOCS Official Method Ba 6a-05  

Science Conference Proceedings (OSTI)

Crude Fiber Analysis in Feeds by Filter Bag Technique AOCS Official Method Ba 6a-05 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines crude

440

AOCS Official Method Ba 9-58  

Science Conference Proceedings (OSTI)

Urease Activity AOCS Official Method Ba 9-58 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the presence of residual urease in soybean pr

Note: This page contains sample records for the topic "analytical method ammonia" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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441

AOCS Official Method Ba 11-65  

Science Conference Proceedings (OSTI)

Nitrogen Solubility Index (NSI) AOCS Official Method Ba 11-65 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the dispersible nitrogen in

442

AOCS Official Method Cb 1-25  

Science Conference Proceedings (OSTI)

Detection of Cottonseed Oil Halphen Test AOCS Official Method Cb 1-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method detects, qualitatively, the pre

443

AOCS Official Method Cd 16-81  

Science Conference Proceedings (OSTI)

Solid Fat Content (SFC) by Low-Resolution Nuclear Magnetic Resonance–The Indirect Method AOCS Official Method Cd 16-81 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION ...

444

AOCS Official Method Cc 10b-25  

Science Conference Proceedings (OSTI)

Specific Gravity of Solid Fats and Waxes AOCS Official Method Cc 10b-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the ratio of the m

445

AOCS Official Method Cd 16b-93  

Science Conference Proceedings (OSTI)

Solid Fat Content (SFC) by Low-Resolution Nuclear Magnetic Resonance—The Direct Method AOCS Official Method Cd 16b-93 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS ...

446

AOCS Official Method Ba 12-75  

Science Conference Proceedings (OSTI)

Trypsin Inhibitor Activity AOCS Official Method Ba 12-75 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total and residual trypsin in

447

AOCS Official Method Aa 9a-97  

Science Conference Proceedings (OSTI)

Determination of Aflatoxins in Corn and Peanuts by Thin-Layer Chromatography Method AOCS Official Method Aa 9a-97 Methods Methods and Analyses Analytical Chemistry Methods Downloads DEFINITION This method detect

448

AOCS Official Method Da 5-44  

Science Conference Proceedings (OSTI)

Free Alkali and Potassium Carbonate AOCS Official Method Da 5-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines free potassium hydroxide

449

AOCS Official Method Tf 2a-64  

Science Conference Proceedings (OSTI)

Primary, Secondary, and Tertiary Amine Values of Fatty Amines, Potentiometric Method AOCS Official Method Tf 2a-64 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION ...

450

AOCS Official Method Ba 2a-38  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter AOCS Official Method Ba 2a-38 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture in the products sp

451

AOCS Official Method Ba 4d-90  

Science Conference Proceedings (OSTI)

Catalyst AOCS Official Method Ba 4d-90 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines total nitrogen content and protein as 6.25 times th

452

AOCS Official Method D 1-99  

Science Conference Proceedings (OSTI)

Comparison of AOCS and ASTM Methods for Soaps and Synthetic Detergent Analysis AOCS Official Method D 1-99 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads Surfactants and Detergents DEFIN

453

AOCS Official Method Cc 1-25  

Science Conference Proceedings (OSTI)

Melting Point Capillary Tube Method AOCS Official Method Cc 1-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The natural fats and oils, that is, those of ani

454

AOCS Official Method Ce 1b-89  

Science Conference Proceedings (OSTI)

Fatty Acid Composition of Marine Oils by GLC AOCS Official Method Ce 1b-89 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the fatty acid

455

AOCS Official Method Da 7-48  

Science Conference Proceedings (OSTI)

Total Alkalinity of Alcohol-Insoluble Matter AOCS Official Method Da 7-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the alkalinity o

456

AOCS Official Method Da 20b-57  

Science Conference Proceedings (OSTI)

Phosphates AOCS Official Method Da 20b-57 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines all the phosphate in a sample as phosphorus pent

457

AOCS Official Method Da 27-48  

Science Conference Proceedings (OSTI)

Combined Sodium and Potassium Oxides AOCS Official Method Da 27-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the potassium in the sa

458

AOCS Official Method Da 20a-48  

Science Conference Proceedings (OSTI)

Phosphates AOCS Official Method Da 20a-48 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines all of the phosphates as phosphorus pentoxide (P

459

AOCS Official Method Cd 19-90  

Science Conference Proceedings (OSTI)

2-Thiobarbituric Acid Value Direct Method AOCS Official Method Cd 19-90 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The TBA value is defined as the increase

460

AOCS Official Method Cj 3-99  

Science Conference Proceedings (OSTI)

Calibration of Rheological Instruments AOCS Official Method Cj 3-99 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The method establishes a criterion for evalua

Note: This page contains sample records for the topic "analytical method ammonia" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


461

AOCS Official Method Bc 2-49  

Science Conference Proceedings (OSTI)

Moisture and Volatile Matter AOCS Official Method Bc 2-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the moisture and any materials t

462

AOCS Official Method Ba 5a-49  

Science Conference Proceedings (OSTI)

Ash AOCS Official Method Ba 5a-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines as ash the residue remaining after incineration under th

463

AOCS Official Method Ba 5b-68  

Science Conference Proceedings (OSTI)

Acid-Insoluble Ash AOCS Official Method Ba 5b-68 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines as acid-insoluble ash the residue remaini

464

AOCS Official Method Bc 6-49  

Science Conference Proceedings (OSTI)

Crude Fiber in Soybean Flours AOCS Official Method Bc 6-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines as crude fiber the loss of inci

465

AOCS Official Method Bc 5-49  

Science Conference Proceedings (OSTI)

Ash AOCS Official Method Bc 5-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines as ash the residue remaining after incineration under the

466

AOCS Official Method Ca 11-55  

Science Conference Proceedings (OSTI)

Ash AOCS Official Method Ca 11-55 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the residue remaining after incineration under the speci

467

AOCS Official Method Cd 1d-92  

Science Conference Proceedings (OSTI)

Iodine Value of Fats and Oils Cyclohexane-Acetic Acid Method AOCS Official Method Cd 1d-92 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The iodine value is a

468

AOCS Official Method F 3-44  

Science Conference Proceedings (OSTI)

Total Desulfated Fatty Matter AOCS Official Method F 3-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total desulfated fatty matte

469

AOCS Official Method Bc 7-51  

Science Conference Proceedings (OSTI)

Screen Test AOCS Official Method Bc 7-51 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the quantity of material coarser than the screen

470

AOCS Official Method G 4-40  

Science Conference Proceedings (OSTI)

Total Fatty Acids AOCS Official Method G 4-40 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total fatty acids in the test sample, wh

471

AOCS Official Method Ca 3d-02  

Science Conference Proceedings (OSTI)

Determination of Sediment in Crude Fats and Oils—Centrifuge Method AOCS Official Method Ca 3d-02 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION...

472

AOCS Official Method Cc 8b-52  

Science Conference Proceedings (OSTI)

Bleaching Test AOCS Official Method Cc 8b-52 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the color of the test sample after treatment

473

AOCS Official Method Cc 8a-52  

Science Conference Proceedings (OSTI)

Bleaching Test AOCS Official Method Cc 8a-52 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the color of the test sample after treatment

474

AOCS Official Method Cc 8e-63  

Science Conference Proceedings (OSTI)

Modified Bleach Test for Soybean Oil AOCS Official Method Cc 8e-63 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the color of the t

475

AOCS Official Method Cc 8d-55  

Science Conference Proceedings (OSTI)

Refined and Bleached Color AOCS Official Method Cc 8d-55 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the color of the test sample afte

476

AOCS Official Method Bc 3-49  

Science Conference Proceedings (OSTI)

Oil AOCS Official Method Bc 3-49 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the substances extracted by petroleum ether under the con

477

AOCS Official Method Ea 9-65  

Science Conference Proceedings (OSTI)

Color (APHA Scale) AOCS Official Method Ea 9-65 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method describes a procedure for the measurement of color by

478

AOCS Official Method G 7-56  

Science Conference Proceedings (OSTI)

pH of Acidulated Soap Stocks AOCS Official Method G 7-56 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the pH of acidulated soap stock b

479

AOCS Official Method Cc 13d-55  

Science Conference Proceedings (OSTI)

Chlorophyll Pigments AOCS Official Method Cc 13d-55 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method is used to determine mg/kg (ppm) of chlorophyll-r

480

AOCS Official Method Ch 4-91  

Science Conference Proceedings (OSTI)

Chlorophyll Pigments AOCS Official Method Ch 4-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method is used to determine mg/kg of chlorophyll-related p

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


481

AOCS Official Method Cd 9-57  

Science Conference Proceedings (OSTI)

Oxirane Oxygen AOCS Official Method Cd 9-57 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines oxirane oxygen which is the oxygen contained i

482

AOCS Official Method Cc 11-53  

Science Conference Proceedings (OSTI)

Cold Test AOCS Official Method Cc 11-53 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method measures the resistance of the test sample to crystallization

483

AOCS Official Method Cc 13a-43  

Science Conference Proceedings (OSTI)

Color FAC Standard Color AOCS Official Method Cc 13a-43 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the color of fats and oils by comp

484

AOCS Official Method Ca 4-25  

Science Conference Proceedings (OSTI)

Soluble Mineral Matter and Fatty Acids Combined as Mineral Soap AOCS Official Method Ca 4-25 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determin

485

AOCS Official Method M 1-92  

Science Conference Proceedings (OSTI)

Determination of Precision of Analytical Methods AOCS Official Method M 1-92 Methods Downloads Methods Downloads Official Methods and Recommended Practices of the AOCS (Methods) aocs applicants certified chemist chemists fats lab laboratories la

486

AOCS Official Method Cd 3c-91  

Science Conference Proceedings (OSTI)

Saponification Value Modified Method Using Methanol AOCS Official Method Cd 3c-91 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The saponification value is the

487

AOCS Official Method G 5-40  

Science Conference Proceedings (OSTI)

Neutral Oil AOCS Official Method G 5-40 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total neutral oil, i.e., unsaponified oil in t

488

AOCS Official Method G 3-53  

Science Conference Proceedings (OSTI)

Total Fatty Acids, Oxidized Fatty Acids, Wet Extraction Method AOCS Official Method G 3-53 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The procedure for tota

489

AOCS Official Method F 7-44  

Science Conference Proceedings (OSTI)

Total Alkalinity AOCS Official Method F 7-44 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total alkalinity of the fixed alkali, amm

490

Process for the liquefaction of solid carbonaceous materials wherein nitrogen is separated from hydrogen via ammonia synthesis  

DOE Patents (OSTI)

In a process for the liquefaction of solid carbonaceous materials wherein bottoms residues are upgraded with a process wherein air is employed, the improvement wherein nitrogen buildup in the system is avoided by ammonia synthesis. In a preferred embodiment hydrogen from other portions of the liquefaction process will be combined with hydrogen produced as a result of the bottoms upgrading to increase the H.sub.2 :N.sub.2 ratio in the ammonia reactor.

Stetka, Steven S. (Fleetwood, PA); Nazario, Francisco N. (Parsippany, NJ)

1982-01-01T23:59:59.000Z

491

Electrochemical Promotion of the Ammonia Synthesis with Electrically Promoted Catalyst Pellets  

Science Conference Proceedings (OSTI)

During the last decade, a new application of solid-electrolyte electrochemistry called non-Faradaic electrochemical modification of catalytic activity (NEMCA), or electrochemical promotion of catalysis, has emerged. The catalytic activity of the gas-exposed electrode surface of metal electrodes in solid electrolyte cells is altered dramatically and reversibly upon polarizing the metal-solid electrolyte interface. Electrochemical promotion of ammonia decomposition was studied in an attempt to identify con...

2001-09-10T23:59:59.000Z

492

Application Guideline for Monitoring Ammonia with Tunable Diode Lasers on Coal-Fired Boilers  

Science Conference Proceedings (OSTI)

Continuous ammonia monitors for coal-fired applications have been under development dating back to the 1990s. One potential use for NH3 process monitors is in support of selective catalytic (SCR) and selective non-catalytic (SNCR) NOx reduction systems that have been employed for NOx control. The primary analyzers being used in the utility industry are in situ tunable diode laser-based systems (TDL). Monitor applications can cover a range of potential needs ...

2012-12-31T23:59:59.000Z

493

Effects of Ammonia and Flue Gas Desulfurization (FGD) Wastewater on Power Plant Effluent Toxicity  

Science Conference Proceedings (OSTI)

The Clean Air Act Amendments and subsequently the Clean Air Interstate Rule and other state-level actions have resulted in implementation of a variety of technologies to reduce emissions of nitrogen oxides (NOx), and to further reduce emissions of sulfur oxides (SOx). Selective Catalytic Reduction (SCR) and SNCR (non-catalytic) are two of the primary NOx emission reduction technologies. Often, ammonia is injected into flue gas as the reductant for the chemical reaction that converts NOx to nitrogen gas. ...

2007-12-18T23:59:59.000Z

494

American Electric Power/Alstom Chilled Ammonia Process Validation Facility -- Material Inspection Report  

Science Conference Proceedings (OSTI)

A CO2 capture and storage (CCS) pilot plant was constructed at American Electric Power’s (AEP’s) 1300-MWe Mountaineer station in New Haven, West Virginia, employing Alstom Power’s Chilled Ammonia Process (CAP). This CAP Process Validation Facility (PVF) was operated for 7900 hours between September 2009 and May 2011, when the demonstration ended. One of the objectives of the program was a determination of the adequacy of the materials that had been selected for the ...

2012-12-13T23:59:59.000Z

495

Reduction of nitrogen oxides with catalytic acid resistant aluminosilicate molecular sieves and ammonia  

DOE Patents (OSTI)

Noxious nitrogen oxides in a waste gas stream such as the stack gas from a fossil-fuel-fired power generation plant or other industrial plant off-gas stream is catalytically reduced to elemental nitrogen and/or innocuous nitrogen oxides employing ammonia as reductant in the presence of a zeolite catalyst in the hydrogen or sodium form having pore openings of about 3 to 10 A.

Pence, Dallas T. (Idaho Falls, ID); Thomas, Thomas R. (Idaho Falls, ID)

1980-01-01T23:59:59.000Z

496

Regulation of the intersubunit ammonia tunnel in Mycobacterium tuberculosis glutamine-dependent NAD[superscript +] synthetase  

Science Conference Proceedings (OSTI)

Glutamine-dependent NAD{sup +} synthetase is an essential enzyme and a validated drug target in Mycobacterium tuberculosis (mtuNadE). It catalyses the ATP-dependent formation of NAD{sup +} from NaAD{sup +} (nicotinic acid-adenine dinucleotide) at the synthetase active site and glutamine hydrolysis at the glutaminase active site. An ammonia tunnel 40 {angstrom} (1 {angstrom} = 0.1 nm) long allows transfer of ammonia from one active site to the other. The enzyme displays stringent kinetic synergism; however, its regulatory mechanism is unclear. In the present paper, we report the structures of the inactive glutaminase C176A variant in an apo form and in three synthetase-ligand complexes with substrates (NaAD{sup +}/ATP), substrate analogue {l_brace}NaAD{sup +}/AMP-CPP (adenosine 5'-[{alpha},{beta}-methylene]triphosphate){r_brace} and intermediate analogues (NaAD{sup +}/AMP/PPi), as well as the structure of wild-type mtuNadE in a product complex (NAD{sup +}/AMP/PPi/glutamate). This series of structures provides snapshots of the ammonia tunnel during the catalytic cycle supported also by kinetics and mutagenesis studies. Three major constriction sites are observed in the tunnel: (i) at the entrance near the glutaminase active site; (ii) in the middle of the tunnel; and (iii) at the end near the synthetase active site. Variation in the number and radius of the tunnel constrictions is apparent in the crystal structures and is related to ligand binding at the synthetase domain. These results provide new insight into the regulation of ammonia transport in the intermolecular tunnel of mtuNadE.

Chuenchor, Watchalee; Doukov, Tzanko I.; Resto, Melissa; Chang, Andrew; Gerratana, Barbara (SSRL); (Maryland)

2012-08-31T23:59:59.000Z

497

Excimer laser photochemistry of silane-ammonia mixtures at 193 nm  

SciTech Connect

The ArF excimer laser induced photochemistry of silane-ammonia mixtures has been studied with molecular beam sampling mass spectrometry. The observed products include disilane, trisilane, and all possible aminosilanes, SiH{sub x}(NH{sub 2}){sub 4-x}, x = 0-3. These products are formed under steady-state photolysis conditions and under single-laser-pulse conditions. A mechanism for the formation of these species is proposed and quantitatively evaluated.

Beach, D.B.; Jasinski, J.M. (Thomas J. Watson Research Center, Yorktown Heights, NY (USA))

1990-04-05T23:59:59.000Z

498

The Evolving Leadership Path of Visual Analytics  

Science Conference Proceedings (OSTI)

This is a requested book chapter for an internationally authored book on visual analytics and related fields, coordianted by a UK university and to be published by Springer in 2012. This chapter is an overview of the leadship strategies that PNNL's Jim Thomas and other stakeholders used to establish visual analytics as a field, and how those strategies may evolve in the future.

Kluse, Michael; Peurrung, Anthony J.; Gracio, Deborah K.

2012-01-02T23:59:59.000Z

499

Technosocial predictive analytics for illicit nuclear trafficking  

Science Conference Proceedings (OSTI)

Illicit nuclear trafficking networks are a national security threat. These networks can directly lead to nuclear proliferation, as state or nonstate actors attempt to identify and acquire nuclear weapons-related expertise, technologies, components, and ... Keywords: analytical gaming, decision making, illicit trafficking, knowledge management, modeling, nuclear proliferation, predictive analytics

Antonio Sanfilippo; Scott Butner; Andrew Cowell; Angela Dalton; Jereme Haack; Sean Kreyling; Rick Riensche; Amanda White; Paul Whitney

2011-03-01T23:59:59.000Z

500

Scale and complexity in visual analytics  

Science Conference Proceedings (OSTI)

The fundamental problem that we face is that a variety of large-scale problems in security, public safety, energy, ecology, health care and basic science all require that we process and understand increasingly vast amounts and variety of data. There ... Keywords: analytics, scalability, visual analytics, visualization

George Robertson; David Ebert; Stephen Eick; Daniel Keim; Ken Joy

2009-12-01T23:59:59.000Z