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Note: This page contains sample records for the topic "methane digester property" 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

Biomass Gasification and Methane Digester Property Tax Exemption  

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

Michigan exempts certain energy production related farm facilities from real and personal property taxes. Among exempted property are certain methane digesters, biomass gasification equipment,...

2

Methane Digesters and Biogas Recovery - Masking the Environmental Consequences of Industrial Concentrated Livestock Production  

E-Print Network (OSTI)

Methane Digesters and Biogas Recovery-Masking theII. METHANE DIGESTERS AND BIOGAs RECOVERY- IN THE2011] METHANE DIGESTERS AND BIOGAS RECOVERY methane, and 64%

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

3

Methane Digester Loan Program | Department of Energy  

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

Methane Digester Loan Program Methane Digester Loan Program Methane Digester Loan Program < Back Eligibility Agricultural Savings Category Bioenergy Maximum Rebate RFA can provide up to $250,000 of loan principal Program Info Funding Source Minnesota Rural Finance Authority (RFA) State Minnesota Program Type State Loan Program Rebate Amount RFA participation limited to 45% of loan principal Provider Minnesota Department of Agriculture Established in 1998, the Minnesota Dept. of Agriculture Methane Digester Loan Program helps livestock producers install on-farm anaerobic digesters used for the production of electricity by providing zero-interest loans to eligible borrowers. The loan program is part of the Rural Finance Authority (RFA) revolving loan fund, through which farmers can receive financial aid

4

Improving the Methane Production in the Co-Digestion of Microalgae and Cattle Manure  

E-Print Network (OSTI)

that biogas production increased when algae was added to the digester. The highest methane production in the control groups, containing only manure, digestion sludge, and newsprint was 48120 L, while the highest in the mixtures containing algae and pretreated...

Cantu, Matthew Scott

2014-04-28T23:59:59.000Z

5

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

Municipal Solid Waste-Sewage Sludge. b 4.15 SCF CH 4 / cu ftUP I j methane 31.5 scf sludge 18.61b water 161b Btu/scfsewer 65.3 lb ( 7.9 gal) sludge ash 1.74 lb stack emissions

Haven, Kendall F.

2011-01-01T23:59:59.000Z

6

Methane Gas Conversion Property Tax Exemption | Department of Energy  

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

Methane Gas Conversion Property Tax Exemption Methane Gas Conversion Property Tax Exemption Methane Gas Conversion Property Tax Exemption < Back Eligibility Agricultural Commercial Industrial Residential Savings Category Bioenergy Program Info Start Date 01/01/2008 (retroactive) State Iowa Program Type Property Tax Incentive Rebate Amount 100% exemption for 10 years Provider Iowa Economic Development Authority '''''Note: This exemption is only available to facilities operated in connection or conjunction with a publicly-owned sanitary landfill. The exemption was available to other entities only for systems placed in service by December 31, 2012. Systems in place before this date are eligible to receive the property tax exemption for 10 years.''''' Under Iowa's methane gas conversion property tax exemption, real and

7

Two dimensional properties of methane adsorbed on porous silicon  

E-Print Network (OSTI)

TWO DIMENSIONAL PROPERTIES OF METHANE ADSORBED ON POROUS SILICON A Thesis by RICHARD FRANKLIN TENNIS Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1989 Major Subject: Physics TWO DIMENSIONAL PROPERTIES OF METHANE ADSORBED ON POROUS SILICON A Thesis by RICHARD FRANKLIN TENNIS Approved as to style and content by: P. Kirk (C ir of Committee) Glenn olet (M er) Da J. Ernst...

Tennis, Richard Franklin

2012-06-07T23:59:59.000Z

8

Methanation  

Science Journals Connector (OSTI)

Methanation describes the heterogeneous, gas-catalytic or biological synthesis of CH4 from H2 and CO/CO2...or in case of the biological path, alternatively from other carbon sources. It is the second substantial,...

Markus Lehner; Robert Tichler…

2014-01-01T23:59:59.000Z

9

Anaerobic Digestion of Algae  

Science Journals Connector (OSTI)

...would be desirable to remove the algae from the lagoon effluent. Under...anaerobic digestion. Digestion of algae to provide a source of fuel is an attractive possibility...through the anaerobic digestion of algae to produce methane. Energy is...

C. G. Golueke; W. J. Oswald; H. B. Gotaas

1957-01-01T23:59:59.000Z

10

Environmental Assessment for the Methane Energy and Agricultural Development Port of Tillamook Bay Dairy Digester Project Tillamook County, Oregon (01/02)  

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

2 2 ENVIRONMENTAL ASSESSMENT METHANE ENERGY and AGRICULTURAL DEVELOPMENT PORT of TILLAMOOK BAY DAIRY DIGESTER PROJECT TILLAMOOK COUNTY, OREGON January 2002 U.S. Department of Energy National Energy Technology Laboratory National Environmental Policy Act (NEPA) Compliance Cover Sheet Proposed Action: The U.S. Department of Energy (DOE) proposes to provide funds for the construction and start-up of a manure digester at the Port of Tillamook Bay (POTB) Industrial Park, Tillamook County, Oregon. If approved, DOE would provide funding to construct this dairy digester that would produce the following marketable products; 295 kW of electric power from biogas, hot water used to maintain the temperature of the digester, and about 30 cubic yards per year of solids for composting.

11

Optimizing the Operation of a Two-Phase Anaerobic Digestion System Digesting Grass Silage  

Science Journals Connector (OSTI)

Methane Yields from Grass Biomethane Digesters ... biomethane potential test ... biomethane potential test ...

Abdul-Sattar Nizami; Jerry D. Murphy

2011-07-25T23:59:59.000Z

12

Recovery of methane from the abandoned Golden Eagle Mine property  

SciTech Connect

The abandoned Golden Eagle underground coal mine in Colorado contains gassy coals from which Stroud Oil Properties, Inc. (Stroud) has been recovering gas since 1996. The mine closed permanently in 1996, and during its operation drained methane from gob and ventilation boreholes. Stroud currently produces about 1.8 million cubic feet of near pipeline quality gas per day from six of these boreholes. Although the project has proven successful, gas recovery has been challenging because of low bottom hole pressure and variable borehole performance. Wellhead compressors are required to boost gas pressure for delivery to the main plant. Connecting additional boreholes to the gathering system often decreases production from existing production boreholes. Increasing gas removal has resulted in air leaks that lower gas quality. Stroud monitors the gas quality and blends any below-spec gas with its above-spec gas to ensure that the resulting product meets pipeline standards. This gas is then compressed for sale into a nearby pipeline. Overburden relaxation and finite difference modeling indicate that overlying coal seams and the coal remaining at the margins of the mined out workings contribute a significant amount of gas to the current production.

Hupp, K.L.; Bibler, C.; Pilcher, R.C.

1999-07-01T23:59:59.000Z

13

Purification and properties of a biologically active peptide released from bovine lactoferrin by pepsin digestion  

E-Print Network (OSTI)

PURIFICATION AND PROPERTIES OF A BIOLOGICALLY ACTIVE PEPTIDE RELEASED FROM BOVINE LACTOFERRIN BY PEPSIN DIGESTION A Thesis by DENISSE ALICIA MAURER Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment... of the requirements for the degree of MASTER QF SCIENCE May 1995 Major Subject: Food Science and Technology PURIFICATION AND PROPERTIES OF A BIOLOGICALLY ACTIVE PEPTIDE RELEASED FROM BOVINE LACTOFERRIN BY PEPSIN DIGESTION A Thesis by DENISSE ALICIA MAURER...

Maurer, Denisse Alicia

1995-01-01T23:59:59.000Z

14

NETL: Methane Hydrates - DOE/NETL Projects - Properties of Hydrate-Bearing  

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

Properties of Hydrate-Bearing Sediments Subjected to Changing Gas Compositions Last Reviewed 12/11/2013 Properties of Hydrate-Bearing Sediments Subjected to Changing Gas Compositions Last Reviewed 12/11/2013 ESD12-011 Goal The objective of this research is to measure physical, chemical, mechanical, and hydrologic property changes in methane hydrate-bearing sediments subjected to injection of carbon dioxide and nitrogen. Performer Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA 94720 Background A number of studies have investigated the impact of injecting carbon dioxide (CO2) and CO2-nitrogen (N2) mixtures into methane hydrate for the purpose of sequestering CO2 and releasing methane (CH4), and review articles have been published summarizing the literature. Most of these studies have investigated the fundamental physical/chemical nature of the exchange of CO2 and/or N2 with CH4 in the clathrate. These studies have

15

Ultrasonic sludge disintegration for enhanced methane production in anaerobic digestion: effects of sludge hydrolysis efficiency and hydraulic retention time  

Science Journals Connector (OSTI)

Hydrolysis of waste activated sludge (WAS) has been regarded as the rate limiting step of anaerobic sludge digestion. Therefore, in this study, the ... effect of ultrasound and hydraulic residence time during sludge

Dong-Jin Kim; Jonghak Lee

2012-01-01T23:59:59.000Z

16

METHANE HYDRATE STUDIES: DELINEATING PROPERTIES OF HOST SEDIMENTS TO ESTABLISH REPRODUCIBLE DECOMPOSITION KINETICS.  

SciTech Connect

The use of methane hydrate as an energy source requires development of a reliable method for its extraction from its highly dispersed locations in oceanic margin sediments and permafrost. The high pressure (up to 70 MPa) and low temperature (272 K to 278 K) conditions under which hydrates are stable in the marine environment can be mimicked in a laboratory setting and several kinetic studies of pure methane hydrate decomposition have been reported. However, the effect of host sediments on methane hydrate occurrence and decomposition are required to develop reliable hydrate models. In this paper, we describe methods to measure sediment properties as they relate to pore-space methane gas hydrate. Traditional geotechnical techniques are compared to the micrometer level by use of the synchrotron Computed Microtomography (CMT) technique. CMT was used to measure the porosity at the micrometer level and to show pore-space pathways through field samples. Porosities for three sediment samples: one from a site on Georges Bank and two from the known Blake Ridge methane hydrate site, from different depths below the mud line were measured by traditional drying and by the new CMT techniques and found to be in good agreement. The integration of the two analytical approaches is necessary to enable better understanding of methane hydrate interactions with the surrounding sediment particles.

MAHAJAN,D.SERVIO,P.JONES,K.W.FENG,H.WINTERS,W.J.

2004-12-01T23:59:59.000Z

17

Property:Building/SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

18

Property:Building/SPPurchasedEngyPerAreaKwhM2DigesterLandfillGas | Open  

Open Energy Info (EERE)

DigesterLandfillGas DigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyPerAreaKwhM2DigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

19

Property:Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

20

E-Print Network 3.0 - anaerobic digestion concept Sample Search...  

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

to methane. The anaerobic digestion consortium was introduced to high... M, and a biogas composition of 55%-60% methane. INTRODUCTION Economic evaluations of ... Source:...

Note: This page contains sample records for the topic "methane digester property" 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

E-Print Network 3.0 - anaerobic closed digester Sample Search...  

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

to methane. The anaerobic digestion consortium was introduced to high... M, and a biogas composition of 55%-60% methane. INTRODUCTION Economic evaluations of ... Source:...

22

Comparison of the Properties of Xenon, Methane, and Carbon Dioxide Hydrates from Equilibrium and Nonequilibrium Molecular Dynamics Simulations  

Science Journals Connector (OSTI)

Comparison of the Properties of Xenon, Methane, and Carbon Dioxide Hydrates from Equilibrium and Nonequilibrium Molecular Dynamics Simulations† ... The VACFs of all three guests in the small cages oscillate between positive and negative values with the oscillation being damped out with increasing time. ... The oscillations are damped much more strongly for CO2 hydrate than for the Xe or methane hydrates, indicating that the coupling between the rattling motions of the encaged guest molecules and the vibrational motions of the host lattice is strongest for CO2 hydrate. ...

H. Jiang; K. D. Jordan

2009-11-11T23:59:59.000Z

23

Methane generation from waste materials  

DOE Patents (OSTI)

An organic solid waste digester for producing methane from solid waste, the digester comprising a reactor vessel for holding solid waste, a sprinkler system for distributing water, bacteria, and nutrients over and through the solid waste, and a drainage system for capturing leachate that is then recirculated through the sprinkler system.

Samani, Zohrab A. (Las Cruces, NM); Hanson, Adrian T. (Las Cruces, NM); Macias-Corral, Maritza (Las Cruces, NM)

2010-03-23T23:59:59.000Z

24

Methane from Anaerobic Fermentation  

Science Journals Connector (OSTI)

...removal rate; and recycling. Many studies have...di-gestion is utilized for wastewater stabili-zation...processes are used in some wastewater treatment plants...sludge is separated for recycling from the digester effluent...percent meth-ane. Many wastewater treatment plants in...

Donald L. Klass

1984-03-09T23:59:59.000Z

25

Methane Main  

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

the the Methane Hydrate Advisory Committee on Methane Hydrate Issues and Opportunities Including Assessment of Uncertainty of the Impact of Methane Hydrate on Global Climate Change December 2002 Report of the Methane Hydrate Advisory Committee on Methane Hydrate Issues and Opportunities Including Assessment of Uncertainty of the Impact of Methane Hydrate on Global Climate Change December 2002 i CONTENTS What is Methane Hydrate? ............................................................................................. 1 Why Methane Hydrate Matters for the United States? ..................................................... 4 Resource Potential of Methane Hydrate .......................................................................... 5 Implications of Methane Hydrate on Safety and Seafloor Stability

26

Anaerobic Digestion Basics | Department of Energy  

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

Anaerobic Digestion Basics Anaerobic Digestion Basics Anaerobic Digestion Basics August 14, 2013 - 1:07pm Addthis Anaerobic digestion is a common technology in today's agriculture, municipal waste, and brewing industries. It uses bacteria to break down waste organic materials into methane and other gases, which can be used to produce electricity or heat. Methane and Anaerobic Bacteria Methane is a gas that contains molecules of methane with one atom of carbon and four atoms of hydrogen (CH4). It is the major component of the natural gas used in many homes for cooking and heating. It is odorless, colorless, and yields about 1,000 British thermal units (Btu) [252 kilocalories (kcal)] of heat energy per cubic foot (0.028 cubic meters) when burned. Natural gas is a fossil fuel that was created eons ago by the anaerobic

27

Composting of the solid fraction of digestate derived from pig slurry: Biological processes and compost properties  

Science Journals Connector (OSTI)

Abstract The aim of this paper was to assess the characteristics of the solid fractions (SF) obtained by mechanical separation of digestate, their compostability and compost quality. To do so, the SF of digestates obtained from anaerobic digestion of pig slurry, energy crops and agro-industrial residues were sampled in five plants located in Northern Italy. Results obtained indicated that anaerobic digestion by itself promoted the high biological stability of biomasses with a Potential Dynamic Respiration Index (PDRI) close to 1000 mgO2 kg V S?1 h?1. Subsequent composting of digestates, with an added bulking agent, did not give remarkably different results, and led only to a slight modification of the characteristics of the initial non-composted mixtures; the composts obtained fully respected the legal limits for high quality compost. Chemical studies of organic matter composition of the biomasses by using CP MAS 13C NMR, indicated that the compost was composed of a high relative content of O-alkyl-C (71.47% of total C) (cellulose and hemicelluloses) and a low alkyl-C (12.42%) (i.e. volatile fatty acids, steroid-like molecules, aliphatic biopolymers and proteins).

Fulvia Tambone; Laura Terruzzi; Barbara Scaglia; Fabrizio Adani

2014-01-01T23:59:59.000Z

28

Ruminant digestion  

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

Ruminant digestion Ruminant digestion Name: hignell Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: How long it takes for the digestive process to work in a ruminant? With the various chambers and would digestion take longer than in other mammals? Replies: A friend in animal nutrition is looking up an exact figure, but as he does, here are a few guidelines: Time of digestion largely depends on the type of food an animal ingests: CARNIVORES: short, uncomplicated digestive systems. They eat very high on the food chain (other animals), which provide food stuff which is relatively easy to digest. Hence, rapid digestion. OMNIVORES: medium length, medium complex digestive systems. We eat at all levels of the food chain, and so need a balanced system. Medium time of digestion (roughly 2-10 hours per meal, depending on proportions of carbohydrates, fats, proteins).

29

Biochemical methane potential and biodegradability of complex organic substrates Rodrigo A. Labatut  

E-Print Network (OSTI)

digestion. In Germany there are over 500 anaerobic digestion facilities for the treatment of the organic biogas plants (Rosch et al., 2009). To anticipate the overall impact and methane yields of such a diverse

Angenent, Lars T.

30

Effect of bituminous coal properties on carbon dioxide and methane high pressure sorption  

Science Journals Connector (OSTI)

Abstract High pressure sorption experiments with carbon dioxide and methane were carried out at a temperature of 45 °C and at pressures up to 15 MPa with three samples of methane-bearing, medium-rank coals in a moisture-equilibrated state using a manometric method. The samples were taken from selected positions of drill cores from exploration boreholes in the Bohemian part of the Upper Silesian Basin, and were characterized by a narrow range of degree of coalification and markedly different petrographic compositions, including a different mineral matter content. The total porosity of the coal samples was between 9% and 10%. A positive correlation was found between the equilibrium moisture in the coal samples and the total abundance of oxygen functional groups determined by FTIR. The excess sorption capacities ranged from 0.78 to 0.91 mmol g?1 for CO2 and from 0.45 to 0.52 mmol g?1 for CH4, and after recalculation to coal organic matter, the excess sorption capacities increased by up to 14% in the coal with the highest mineral fraction. The highest CO2/CH4 ratio was found in the sample that had the highest inertinite and liptinite content. The experimental isotherm data was fitted by modified Langmuir and Dubinin–Radushkevich sorption isotherms. The parameters obtained by these two methods were in good agreement for carbon dioxide. It was found that the sorption capacity of the organic matter in a coal sample with prevalence of inertinite (63.0 vol.%) was lower only by 14% for CO2 and by 18% for CH4 than the sorption capacity of the organic matter in a coal sample with prevalence of vitrinite (65.3 vol.%). This provided confirmation that the petrographic composition of a coal has an ambiguous effect.

Zuzana Weishauptovį; Old?ich P?ibyl; Ivana Sżkorovį; Vladimķr Machovi?

2015-01-01T23:59:59.000Z

31

Digestion Experiments  

E-Print Network (OSTI)

Blank in Bulletin] BULLETIN NO. 291 FEBRUARY, 1922 DIGESTION EXPERIMENTS This is the sixth bulletin in a series whose object is to ascertain the Aceding value of Texas feeding stuffs by means of digestion experiments. Previous bulletins... The productive values and the values for digestible protein in t Bulletin have been calculated from the results of digestion esperiine? with sheep. The method of conducting the experiments is described Bulletins Nos. 147 and 166 of this Station. The production...

Fraps, G. S. (George Stronach)

1922-01-01T23:59:59.000Z

32

Das Methan  

Science Journals Connector (OSTI)

Bei Einwirkung von Salzsäure auf Aluminiumkarbid entwickelt sich ein farbloses Gas, welches, angezündet, mit schwach leuchtender Flamme brennt: Es ist Methan.

A. Lipp

1928-01-01T23:59:59.000Z

33

Synthesis, characterization and properties of anti-sintering nickel incorporated MCM-41 methanation catalysts  

Science Journals Connector (OSTI)

Abstract Several nickel incorporated MCM-41 catalysts with a nickel molar content from 1% to 10% were prepared by a hydrothermal synthesis method, and investigated for their catalytic performances for the production of substitute natural gas (SNG) from syngas methanation in a continuous flow fixed-bed reactor. The catalysts were characterized by FTIR, ICP, XRD, H2-TPR, TG–DTA and TEM, and the results showed that the mesoporous structure of MCM-41 still maintained well when the incorporated Ni molar content was up to 10%. The Ni–M catalyst prepared by the hydrothermal synthesis method with a nickel molar content of 10% showed the best catalytic activity with a high CO conversion of almost 100%, and a CH4 yield of 95.7% at 350 °C with 3:1 molar ratio of H2 to CO under 1.0 MPa and 12000 ml/h/g. Compared with the 10%Ni/M catalyst prepared by the impregnation method, the 10%Ni–M catalyst showed a higher resistance to sintering and no decrease in catalytic activity after calcination at 700 °C for 2 h. In the 100 h stability test under atmospheric pressure, the CO conversion rate and the CH4 yield obtained on 10%Ni–M catalyst maintained at about 100% and 82%, respectively, suggesting an excellent catalytic stability of this catalyst. The results of XRD, H2-TPR and TG–DTA showed that there was a strong interaction between the Ni species and the support, which inhibited the catalyst sintering. And the amount of coke formed on the spent 10%Ni–M catalyst in the stability test was 3.0 wt%. The coke formation was relatively easily to remove by calcination because the deposited carbon had a small particle size and uniform dispersion on the catalyst.

Jiaying Zhang; Zhong Xin; Xin Meng; Miao Tao

2013-01-01T23:59:59.000Z

34

Photoenhanced anaerobic digestion of organic acids  

DOE Patents (OSTI)

A process is described for rapid conversion of organic acids and alcohols anaerobic digesters into hydrogen and carbon dioxide, the optimal precursor substrates for production of methane. The process includes addition of photosynthetic bacteria to the digester and exposure of the bacteria to radiant energy (e.g., solar energy). The process also increases the pH stability of the digester to prevent failure of the digester. Preferred substrates for photosynthetic bacteria are the organic acid and alcohol waste products of fermentative bacteria. In mixed culture with methanogenic bacteria or in defined co-culture with non-aceticlastic methanogenic bacteria, photosynthetic bacteria are capable of facilitating the conversion or organic acids and alcohols into methane with low levels of light energy input.

Weaver, Paul F. (Golden, CO)

1990-01-01T23:59:59.000Z

35

Anaerobic Digestion (AD): not only methane  

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

Breakout Session 1: New Developments and Hot Topics Session 1-C: Beyond Biofuels Larry Baresi, Professor of Biology, California State University, Northridge

36

Optimization of solid state anaerobic digestion of the OFMSW by digestate recirculation: A new approach  

Science Journals Connector (OSTI)

Abstract Dry anaerobic digestion (AD) of OFMSW was optimized in order to produce biogas avoiding the use of solid inoculum. Doing so the dry AD was performed irrigating the solid waste with liquid digestate (flow rate of 1:1.18–1:0.9 w/w waste/digestate; 21 d of hydraulic retention time – HRT) in order to remove fermentation products inhibiting AD process. Results indicated that a high hydrolysis rate of organic matter (OM) and partial biogas production were obtained directly during the dry AD. Hydrolysate OM was removed from digester by the percolate flow and it was subsequently used to feed a liquid anaerobic digester. During dry AD a total loss of 36.9% of total solids was recorded. Methane balance indicated that 18.4% of potential methane can be produced during dry AD and 49.7% by the percolate. Nevertheless results obtained for liquid AD digestion indicated that only 20.4% and 25.7% of potential producible methane was generated by adopting 15 and 20 days of HRT, probably due to the AD inhibition due to high presence of toxic ammonia forms in the liquid medium.

Pognani Michele; D’Imporzano Giuliana; Minetti Carlo; Scotti Sergio; Adani Fabrizio

2014-01-01T23:59:59.000Z

37

Digestion Simulations  

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

Digestion Simulations Digestion Simulations Name: Lisa Location: N/A Country: N/A Date: N/A Question: My 5th grade students are beginning an experiment next week and their hypothesis involves edibility(edibleness?). Is there a way to replicate the stomach in, say, a bottle?? Are there ways to test for edibleness(?) without actually ingesting the experiment yourself? Replies: I would not recommend the idea of a bottle stomach. The stomach digests only proteins anyway with HCl [pH 1.0] which is very, very strong acid that will burn seriously if in contact with skin. The intestine is just as much responsible for digestion of lipids [bile], carbohydrates and remaining proteins using enzymes, many of these you do not want to be handling, let alone purchase. As a high school teacher, I have lab exercises dealing with digestion, but I can not recommend any of these unless you are set up with a functional science laboratory and all the safety equipment necessary.

38

Optimization Online - Digest Archive  

E-Print Network (OSTI)

Optimization Online Digest Archive. Subscribe to the digest. ... Online is supported by the Mathematical Optmization Society. Mathematical Optimization Society.

39

ARM - Methane Background Information  

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

our atmosphere's methane levels have more than doubled in the last 200 years. These methane levels contribute to the greenhouse effect, which contributes to overall climate change....

40

Contribution of Anaerobic Digesters to Emissions Mitigation and Electricity Generation Under U.S. Climate Policy  

E-Print Network (OSTI)

Livestock husbandry in the U.S. significantly contributes to many environmental problems, including the release of methane, a potent greenhouse gas (GHG). Anaerobic digesters (ADs) break down organic wastes using bacteria ...

Zaks, David P. M.

Note: This page contains sample records for the topic "methane digester property" 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

Digestion time  

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

Digestion time Digestion time Name: Don Mancosh Location: N/A Country: N/A Date: N/A Question: I have always given the rule of thumb in class that material we eat is with us for about 24 hours before exiting the body. The question arises about the time value of liquids. Getting a big coke prior to a 3 hour drive generally means that there will be a stop along the way. Is there a generalization made about liquids in the body similar to the one for solid food? Replies: A physician would give a better answer, but I hazard this: the only liquids which people consume (deliberately) in significant quantities are water, ethyl alcohol and various oils. Water and alcohol are absorbed on a time scale of seconds to minutes through the mouth, stomach and digestive tract. The oils are huge molecules, so I'd guess like any other greasy food they get absorbed in the upper digestive tract. Some of them, perhaps the longest and most nonpolar, are not absorbed at all --- cf. the old-time remedy of mineral oil for constipation --- so there should be some average time-before-what's-left-is-excreted such as you're looking for, and my (wild) guess is that it would not differ substantially from that for food. You can define an average lifetime in the body for alcohol, since the natural level is zero. Rough guidelines are widespread in the context of drunk driving laws. But this is not really possible for water. One's body is normally full up to the brim with water, and there's no way for the body to distinguish between water molecules recently absorbed and molecules that've been moping around since the Beatles split up. Thus the water entering the toilet bowl after the pit stop is not in general the same water as was in the big coke. If you were to consider for water just the average time between drinking and peeing, it would seem to depend strongly on how well hydrated the body was before the drink, and how much was drunk. During sustained heavy exertion in the sun and dry air one can easily drink a pint of water an hour without peeing at all. On the other hand, if one is willing to drink enough water fast enough, so as to establish a high excess of body water one can pee 8 ounces 15 minutes or less after drinking 8 ounces.

42

Optimization Online - Digest  

E-Print Network (OSTI)

Complete the form below to subscribe to the free Optimization Online Digest. ... Type your e-mail address to unsubscribe from the Optimization Online Digest.

43

Greenhouse Gas Emission Reductions from Domestic Anaerobic Digesters Linked with Sustainable Sanitation in Rural China  

Science Journals Connector (OSTI)

Greenhouse Gas Emission Reductions from Domestic Anaerobic Digesters Linked with Sustainable Sanitation in Rural China ... (3) A key technology that may permit a switch from solid fuels to cleaner gaseous fuels in rural China is anaerobic digestion, where organic human and animal wastes are digested under anaerobic conditions generating biogas, composed primarily of methane (CH4), which can be sequestered and burned for cooking, heating, and lighting. ...

Radhika Dhingra; Erick R. Christensen; Yang Liu; Bo Zhong; Chang-Fu Wu; Michael G. Yost; Justin V. Remais

2011-02-24T23:59:59.000Z

44

NETL: Methane Hydrates - DOE/NETL Projects  

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

Seismic-Scale Rock Physics of Methane Hydrate Seismic-Scale Rock Physics of Methane Hydrate DE-FC26-05NT42663 Goal The goal of this project was to establish rock physics models for use in generating synthetic seismic signatures of methane hydrate reservoirs. Ultimately, the intent was to improve seismic detection and quantification of offshore and onshore methane hydrate accumulations. Performer Stanford University, Stanford, CA 94305 Background Gas hydrate reservoir characterization is, in principle, no different from traditional hydrocarbon reservoir characterization. The seismic response of the subsurface is determined by the spatial distribution of the elastic properties (properties of the subsurface that deform as seismic waves pass through it) and attenuation. By mapping changes in the elastic properties, scientists can identify geologic features, including hydrocarbon reservoirs.

45

Anaerobic Co-Digestion on Dairies in Washington State  

E-Print Network (OSTI)

as food-processing wastes) to increase biogas productivity, improve digester performance, and increase in manure and other feedstock to methane-rich biogas, a source of renewable energy (US-EPA 2006) (Figure 1-EPA 2005; US-EPA 2008). In addition to biogas, AD generates fiber and Figure 1. Overview of anaerobic

Collins, Gary S.

46

Halophytic microalgae as a feedstock for anaerobic digestion  

Science Journals Connector (OSTI)

Abstract Anaerobic digestion can be employed to produce methane biogas from residual microalgae biomass derived from either a lipid based biofuel process or wastewater treatment. There is interest in using halophytic microalgae for biofuel production due to their potential robustness in large-scale open pond production. The anaerobic digestion of halophytic microalgae biomass would however be challenging due to the high salinities not typically experienced in anaerobic digestion scenarios. Halophytic microalgae biomass as a potential substrate feedstock for anaerobic digestion would have salinities in excess of 3.5%, which is typically found in marine environments. To investigate the anaerobic digestion of halophytic microalgae issue the first stage of the reported study focuses on the changes undertaken in the bacterial community associated with the anaerobic digestion of piggery effluent under increasing saline conditions, with the aim of establishing a saline tolerant anaerobic digestion inoculum capable of digesting feedstocks under high salinity conditions. Favourable results from this inoculum development study allowed the investigation of anaerobic digestion of halophytic microalgae. The reported results demonstrate that a saline tolerant inoculum was maintained. Subsequent denaturing gradient gel electrophoresis (DGGE) fingerprinting of the resulting halophytic bacterial community showed several halophytic methanogens. The inoculum was used to digest the halophytic microalgae. The resulting gas data showed that biogas production of 358 ± 53 mL/g of volatile solids (VS) with a methane content of 54 ± 4.3% methane was achieved at 7% salinity. The volume of biogas produced on a wet weight microalgae biomass basis was 122 ± 26 and 175 ± 25 mL/g of halophytic microalgae biomass respectively (74 ± 2.8 wt.% moisture content). The conversion of carbon in the feedstock to methane achieved an efficiency of 26.4% and 46.6% at 3.4% and 7% salinity respectively. A halo-tolerant anaerobic digestion microbial community could be further optimized to complete the loop with nutrient recycle required with the production of halophytic microalgae based biofuels and potentially, hypersaline wastewater treatment applications.

Andrew Ward; Andy Ball; David Lewis

2015-01-01T23:59:59.000Z

47

Methane-steam reforming  

SciTech Connect

A discussion covers steam reforming developments to the 1950's; the kinetics of methane-steam reforming, of the water-gas shift during methane-steam reforming, and of the carbon formation during methane-steam reforming, as approached by Akers and Camp.

Van Hook, J.P.

1980-01-01T23:59:59.000Z

48

NETL: Methane Hydrates - Methane Hydrate Reference Shelf  

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

Reference Shelf Reference Shelf The Methane Hydrate Reference Shelf was created to provide a repository for information collected from projects funded as part of the National Methane Hydrate R&D Program. As output from the projects is received, it will be reviewed and then placed onto the reference shelf to be available to other methane hydrate researchers. Projects: DOE/NETL Projects : These pages contain detailed information on methane hydrate projects funded through the National Energy Technology Laboratory. Publications: Newsletter | Bibliography | Software | Reports | Program Publications | Photo Gallery Newsletter: Fire in the Ice: A publication highlighting the National Methane Hydrate R&D Program Bibliography: "Project Reports Bibliography"[PDF]: The bibliography lists publications resulting from DOE/NETL-sponsored

49

Experimental co-digestion of corn stalk and vermicompost to improve biogas production  

SciTech Connect

Anaerobic co-digestion of corn stalk and vermicompost (VC) as well as mono-digestion of corn stalk were investigated. Batch mono-digestion experiments were performed at 35 {+-} 1 {sup o}C and initial total solid loading (TSL) ranged from 1.2% to 6.0%. Batch co-digestion experiments were performed at 35 {+-} 1 {sup o}C and initial TSL of 6% with VC proportions ranged from 20% to 80% of total solid (TS). For mono-digestion of corn stalk, a maximum methane yield of 217.60 {+-} 13.87 mL/g TS{sub added} was obtained at initial TSL of 4.8%, and acidification was found at initial TSL of 6.0% with the lowest pH value of 5.10 on day 4. Co-digestion improved the methane yields by 4.42-58.61% via enhancing volatile fatty acids (VFAs) concentration and pH value compared with mono-digestion of corn stalk. The maximum biogas yield of 410.30 {+-} 11.01 mL/g TS{sub added} and methane yield of 259.35 {+-} 13.85 mL/g TS{sub added} were obtained for 40% VC addition. Structure analysis by X-ray diffractometry (XRD) showed that the lowest crystallinity of 35.04 of digested corn stalk was obtained from co-digestion with 40% VC, which decreased 29.4% compared to 49.6 obtained from un-treated corn stalk. It is concluded that co-digestion with VC is beneficial for improving biodigestibility and methane yield from corn stalk.

Chen Guangyin [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China); Zheng Zheng, E-mail: zzhenghj@fudan.edu.c [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China); Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 (China); Yang Shiguan [National Engineering Laboratory of Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, Beijing 102206 (China); Fang Caixia; Zou Xingxing; Luo Yan [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China)

2010-10-15T23:59:59.000Z

50

Market Digest: Natural Gas  

Reports and Publications (EIA)

The Energy Information Administration's Natural Gas Market Digest provides information and analyses on all aspects of natural gas markets.

2014-01-01T23:59:59.000Z

51

Anaerobic digestion of glycerol and co-digestion of glycerol and pig manure  

Science Journals Connector (OSTI)

The potential of glycerol obtained from transesterification of waste cooking oil as a main carbon source for biogas production was investigated. The glycerol was highly contaminated with oils and fats and was pretreated with sulfuric acid. Using a carbon source of glucose as a control, we compared biogas production from the acid-treated glycerol in a synthetic medium and the acid-treated glycerol mixed with pig manure. The anaerobic digestion of acid-treated glycerol with supplement in a synthetic medium was found to be satisfactory at organic loading rates (OLR) between 1.3, 1.6 and 2.6 g chemical oxygen demand (COD) L?1 d?1. The maximum methane yield of 0.32 L at Standard temperature and pressure (STP) g?1 COD removal was achieved at an OLR of 1.6 g COD L?1 d?1 and the methane content was 54% on an average. At a higher organic loading rate of 5.4 g COD L?1 d?1, the propionic acid to acetic acid ratio was higher than the critical threshold limit for metabolic imbalance. Anaerobic digestion of acid-treated glycerol with pig manure was also investigated at the COD ratio of 80:20 (glycerol:pig manure). The anaerobic digestion of acid-treated glycerol with pig manure was found to be satisfactory at organic loading rates between 1.3, 1.7, 2.9 and 5.0 g COD L?1 d?1 in terms of COD reduction (>80%) and methane content of (62% on an average). However, the biogas production rate was found to significantly decrease at the highest load. The maximum methane yield of 0.24 L STP g?1 COD removal was achieved at an OLR of 1.3 g COD L?1 d?1.

Sasikarn Nuchdang; Chantaraporn Phalakornkule

2012-01-01T23:59:59.000Z

52

Methane Hydrate Field Program  

SciTech Connect

This final report document summarizes the activities undertaken and the output from three primary deliverables generated during this project. This fifteen month effort comprised numerous key steps including the creation of an international methane hydrate science team, determining and reporting the current state of marine methane hydrate research, convening an international workshop to collect the ideas needed to write a comprehensive Marine Methane Hydrate Field Research Plan and the development and publication of that plan. The following documents represent the primary deliverables of this project and are discussed in summary level detail in this final report. • Historical Methane Hydrate Project Review Report • Methane Hydrate Workshop Report • Topical Report: Marine Methane Hydrate Field Research Plan • Final Scientific/Technical Report

None

2013-12-31T23:59:59.000Z

53

Coalbed Methane Production  

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

NA Not Available; W Withheld to avoid disclosure of individual company data. Notes: Coalbed Methane production data collected in conjunction with proved reserves data on Form...

54

Coalbed Methane | Department of Energy  

Energy Savers (EERE)

Coalbed Methane Coalbed Methane Coalbed methane is natural gas found in coal deposits. It was once considered a nuisance and mine safety hazard, but today has become a valuable...

55

Ru/Ni/MgAl2O4 catalysts for steam reforming of methane: effects of Ru content on self-activation property  

Science Journals Connector (OSTI)

The effects of Ru on the self-reducibility of Ru-doped Ni/MgAl2O4 catalysts, which do not need pre-reduction treatment with H2, were investigated in the steam reforming of methane (SRM). The Ru-promoted Ni/MgAl2O

Seung-Chan Baek; Ki-Won Jun; Yun-Jo Lee; Jae Dong Kim…

2012-04-01T23:59:59.000Z

56

Design of experiments to assess pre-treatment and co-digestion strategies that optimize biogas production from macroalgae Gracilaria vermiculophylla  

Science Journals Connector (OSTI)

Abstract A design of experiments was applied to evaluate different strategies to enhance the methane yield of macroalgae Gracilaria vermiculophylla. Biochemical Methane Potential (BMP) of G. vermiculophylla after physical pre-treatment (washing and maceration) reached 481 ± 9 L CH4 kg?1 VS, corresponding to a methane yield of 79 ± 2%. No significant effects were achieved in the BMP after thermochemical pre-treatment, although the seaweeds solubilisation increased up to 44%. Co-digestion with glycerol or sewage sludge has proved to be effective for increasing the methane production. Addition of 2% glycerol (w:w) increased the BMP by 18%, achieving almost complete methanation of the substrate (96 ± 3%). Co-digestion of seaweed and secondary sludge (15:85%, TS/TS) increased the BMP by 25% (605 ± 4 L CH4 kg?1 VS) compared to the seaweed individual digestion.

J.V. Oliveira; M.M. Alves; J.C. Costa

2014-01-01T23:59:59.000Z

57

Thermodynamic properties of saturated methane  

E-Print Network (OSTI)

the triple point pressure, 87. 50 mm Hg, and temperature, 90. 66 K, reported by Armstrong (2). Accepted crit cal and triple point constants are tabulated in Table Z. Vapor Pressure All experimental vapor pressure data (2, 3, 6, 7, 11. , 1. 5, 16, 17, 18... ~ aQ Q &~' C&) ea 0 LEGEND Q Armstrong a Bloomer Q ~ Q 0 Q 0 ~ C3 C7 C7 I:I 0 I3 I3 0 Ia Qy o(7) 9 Qg~ 'O 0 -12 0 -I 6 0 V morrison w Van Ttterbeek o Vennix 0 kfe s terman-M'hite Keyes S Ver'beke Q 0 0 -200 90 100 I I 0...

Holt, James Louis

1972-01-01T23:59:59.000Z

58

Coalbed methane gains viability  

SciTech Connect

In recent government studies, the Department of Energy (DOE) states that coal bed methane can be produced economically by using recovery systems that maximize return on investment rather than a system to produce a single coal seam just prior to mining. DOE suggests that the cost of recovering coal bed methane can be substantially reduced by increasing well spacing and employing multizone production if possible. Created as a by-product during the formation of coal, methane frequently is trapped in coal beds and associated strata. Estimates of total US methane contained in coal beds range from 260 to 860 TCF. The Pittsburgh seam in the N. Appalachia basin has estimates of 0.6 to 4 TCF alone. With current technology, DOE thinks that approximately 300 TCF of coal bed methane can be extracted from coal beds.

Not Available

1981-08-01T23:59:59.000Z

59

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

distribution of heavy metals and other toxicants betweenaccumulation and toxicity resulting from heavy metals suchthe marine algae. Toxicity resulting from heavy metal uptake

Haven, Kendall F.

2011-01-01T23:59:59.000Z

60

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

time constant algal heat of combustion (6 Kcal/gm) dilutionSource: temperature, heat of combustion, and the depth at

Haven, Kendall F.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

flow from an on-site steam turbine to raise the kelp to 45°Ca 1200 Kw electric steam turbine/generator system. CapitalFinally, the waste steam stream from the turbine is used to

Haven, Kendall F.

2011-01-01T23:59:59.000Z

62

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

fuel for the boiler is sludge which is The potential residuals derived from the pressing of shredded algae.

Haven, Kendall F.

2011-01-01T23:59:59.000Z

63

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

Design Parameters Marine Biomass Production Sea Farmof Various Types of Biomass . Biomethanation Parameters.Proceedings, Fuels from Biomass Symposium. University of

Haven, Kendall F.

2011-01-01T23:59:59.000Z

64

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

commercial farm. A biomass energy farm must cover a largeof Symposium on Energy from Biomass and Wastes, Washington,Biomass Yield Energy Content Upwelling

Haven, Kendall F.

2011-01-01T23:59:59.000Z

65

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

wind, and bottom conditions that repre- sent a potential large farm site, but do not reach the extremes

Haven, Kendall F.

2011-01-01T23:59:59.000Z

66

Methane Hydrates - Methane Hydrate Graduate Fellowship  

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

Future Supply and Emerging Resources Future Supply and Emerging Resources The National Methane Hydrates R&D Program - Graduate Fellowship Program Methane Hydrate Graduate Fellowship Program Jeffrey James Marlow, a graduate student in Geobiology at the California Institute of Technology, was recently selected as the 2012 recipient of the NETL-National Academy of Sciences (NAS) Methane Hydrate Research Fellowship. Please see page 15 of the March 2013 issue (Vol. 13, Issue 1) of Fire in the Ice for more information on the recipient. The Department of Energy has a long history of building synergistic relationships with research universities. Funding academic research is a "win-win-win" situation. The U.S. government is able to tap into some of the best minds available for solving national energy problems, the universities get the support they need to maintain cutting edge faculty and laboratories, and the students involved are provided with opportunities that help them along their chosen path of study, strengthening the national pool of scientists and engineers. According to Samuel Bodman, speaking about graduate research in methane hydrates, "Students are the foundation of our energy future, bringing new ideas and fresh perspectives to the energy industry. What better way to assure technology innovation than to encourage students working on the development of a resource that has the potential to tip our energy balance toward clean-burning, domestic fuels."

67

Methane Hydrate Program  

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

FY 2011 FY 2011 Methane Hydrate Program Report to Congress July 2012 United States Department of Energy Washington, DC 20585 Department of Energy | July 2012 FY 2011 Methane Hydrate Program Report to Congress | Page ii Message from the Secretary Section 968 of the Energy Policy Act of 2005 requires the Department of Energy to submit to Congress an annual report on the results of methane hydrate research. I am pleased to submit the enclosed report entitled U.S. Department of Energy FY 2011 Methane Hydrate Program Report to Congress. The report was prepared by the Department of Energy's Office of Fossil Energy and summarizes the progress being made in this important area of research. Pursuant to statutory requirements, this report is being provided to the following

68

Atmosphärisches Methan als Treibhausgas  

Science Journals Connector (OSTI)

Methan (CH4) gehört neben Wasser(dampf), Kohlendioxid (CO2), Distickstoffmonoxid (Lachgas, N2O), Ozon (O3) und den Fluorchlorkohlenwasserstoffen (FCKW) zu den sog.Treibhausgasen, von denen man mit großer Sicherhe...

W. Klöpffer

1990-09-01T23:59:59.000Z

69

Ionisierungsspannung von Methan  

Science Journals Connector (OSTI)

In einer näher skizzierten Versuchsanordnung wird die Ionisierungsspannung von Methan zu 14,58±0,05 Volt, die...4?Molekel erforderliche Energie zu 15,40±0,05 Volt in guter Übereinstimmung mit der für den homogene...

Erich Pietsch; Gertrud Wilcke

1927-01-01T23:59:59.000Z

70

Methane Hydrate Program  

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

Fiscal Year 2012 Fiscal Year 2012 Methane Hydrate Program Report to Congress August 2013 United States Department of Energy Washington, DC 20585 Department of Energy | August 2013 Fiscal Year 2012 Methane Hydrate Program Report to Congress | Page ii Message from the Secretary Section 968 of the Energy Policy Act of 2005 requires the Department of Energy to submit to Congress an annual report on the actions taken to carry out methane hydrate research. I am pleased to submit the enclosed report, entitled U.S. Department of Energy Fiscal Year 2012 Methane Hydrate Program Report to Congress. The report was prepared by the Department of Energy's Office of Fossil Energy and summarizes the progress being made in this important area

71

Electrochemical methane sensor  

DOE Patents (OSTI)

A method and instrument including an electrochemical cell for the detection and measurement of methane in a gas by the oxidation of methane electrochemically at a working electrode in a nonaqueous electrolyte at a voltage about 1.4 volts vs R.H.E. (the reversible hydrogen electrode potential in the same electrolyte), and the measurement of the electrical signal resulting from the electrochemical oxidation.

Zaromb, S.; Otagawa, T.; Stetter, J.R.

1984-08-27T23:59:59.000Z

72

Baltimore Zoo digester project. Final report. [Elephants  

SciTech Connect

The results of a project to produce methane using the manure from zoo animals as a feedstock is presented. Two digesters are in operation, the first (built in 1974) utilizing wastes from the Hippo House and a second (built in 1980) utilizing wastes from the Elephant House. Demonstrations on the utilization of the gas were performed during zoo exhibits. The Elephant House Digester has a capacity of 4200 gallons and a floating gas dome which can retain at least 150 cu ft of gas. Solar energy has been incorporated into the design to maintain digester temperature at 95/sup 0/F. The system produces 50 cu ft per day. After cleaning the gas, it is used to generate electricity to power an electric light, a roof fan, and an air conditioner. The gas is also used to operate a gas range and a gas lamp. During the opening day exhibit, 50 meals were cooked using the bio-gas from just 2 elephants. (DMC)

Gibson, P.W.

1980-01-01T23:59:59.000Z

73

TRENDS: METHANE EMISSIONS - INTRODUCTION  

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

Of the total direct radiative forcing of long-lived greenhouse gases (2.45 Of the total direct radiative forcing of long-lived greenhouse gases (2.45 Wm-2), almost 20% is attributable to methane (CH4), according to the 1995 report of the Intergovernmental Panel on Climate Change (IPCC 1995). Since the mid-1700s, the atmospheric concentration of methane has increased by about 145% (IPCC 1995). Thus, an understanding of the various sources of methane is important. Atmospheric methane is produced both from natural sources (e.g., wetlands) and from human activities (see global methane cycle, from Professor W.S. Reeburgh at the University of California Irvine). Total sources of methane to the atmosphere for the period 1980-1990 were about 535 (range of 410-660) Tg (1 Teragram = 1 million metric tons) CH4 per year, of which 160 (110-210) Tg CH4/yr were from natural sources and 375 (300-450) Tg CH4/yr

74

Methane Hydrate | Department of Energy  

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

Methane Hydrate Methane Hydrate Methane Hydrate Types of Methane Hydrate Deposits Types of Methane Hydrate Deposits Methane hydrate is a cage-like lattice of ice inside of which are trapped molecules of methane, the chief constituent of natural gas. If methane hydrate is either warmed or depressurized, it will revert back to water and natural gas. When brought to the earth's surface, one cubic meter of gas hydrate releases 164 cubic meters of natural gas. Hydrate deposits may be several hundred meters thick and generally occur in two types of settings: under Arctic permafrost, and beneath the ocean floor. Methane that forms hydrate can be both biogenic, created by biological activity in sediments, and thermogenic, created by geological processes deeper within the earth.

75

Bio-methane via fast pyrolysis of biomass  

Science Journals Connector (OSTI)

Bio-methane, a renewable vehicle fuel, is today produced by anaerobic digestion and a 2nd generation production route via gasification is under development. This paper proposes a poly-generation plant that produces bio-methane, bio-char and heat via fast pyrolysis of biomass. The energy and material flows for the fuel synthesis are calculated by process simulation in Aspen Plus®. The production of bio-methane and bio-char amounts to 15.5 MW and 3.7 MW, when the total inputs are 23 MW raw biomass and 1.39 MW electricity respectively (HHV basis). The results indicate an overall efficiency of 84% including high-temperature heat and the biomass to bio-methane yield amounts to 83% after allocation of the biomass input to the final products (HHV basis). The overall energy efficiency is higher for the suggested plant than for the gasification production route and is therefore a competitive route for bio-methane production.

Martin Görling; Mårten Larsson; Per Alvfors

2013-01-01T23:59:59.000Z

76

Bonding Strength by Methane Hydrate Formed among Sand Particles  

Science Journals Connector (OSTI)

The mechanical properties of methane hydrate?bearing sand were investigated by low temperature and high confining pressure triaxial testing apparatus in the present study. The specimens were prepared by infiltrating the methane gas into partially saturated sand specimen under the given temperature and stress condition which is compatible with the phase equilibrium condition for the stability of methane hydrate. The tests were firstly performed to investigate the effect of temperature on the shear behaviour of the specimen. Then the effect of backpressure was investigated. The strength of methane hydrate bearing sand increased as the temperature decreased and the back pressure increased. The bonding strength due to methane hydrate was dependent on methane hydrate saturation temperature and back pressure but independent of effective stress. Dissociation tests of methane hydrate were also performed by applying the temperature to the specimen at the various initial stress conditions. The marked development of shear and volumetric strains were observed due to dissociation of the methane hydrate in the specimen corresponding to the initial stress conditions.

M. Hyodo; Y. Nakata; N. Yoshimoto; R. Orense; J. Yoneda

2009-01-01T23:59:59.000Z

77

Turkey vs. human digestion  

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

Turkey vs. human digestion Turkey vs. human digestion Name: wallyb Location: N/A Country: N/A Date: N/A Question: How is the digestive system of turkeys different from that of humans? Replies: Hmmm.. been a while since I had sophomore biology, so I can't completely answer this one, but I can say a few things. One, since turkeys are birds, and birds as a general rule have not had teeth for several million years at least, the turkey needs a way to mash up its food -- thus, the crop, which is essentially like another stomach: the turkey (and many other birds, for that matter) swallows small stones which serve in lieu of teeth, mashing up food via muscular action in the crop, from whence the "chewed" food moves on into the rest of the digestive tract. As for any other differences, I'll have to leave that to someone else with more ornithological experience...

78

Steam Digest 2001  

SciTech Connect

Steam Digest 2001 chronicles BestPractices Program's contributions to the industrial trade press for 2001, and presents articles that cover technical, financial and managerial aspects of steam optimization.

Not Available

2002-01-01T23:59:59.000Z

79

Enhancement of sludge reduction and methane production by removing extracellular polymeric substances from waste activated sludge  

Science Journals Connector (OSTI)

Abstract The management of waste activated sludge (WAS) recycling is a concern that affects the development of the future low-carbon society, particularly sludge reduction and biomass utilization. In this study, we investigated the effect of removing extracellular polymeric substances (EPS), which play important roles in the adhesion and flocculation of WAS, on increased sludge disintegration, thereby enhancing sludge reduction and methane production by anaerobic digestion. EPS removal from WAS by ethylenediaminetetraacetic acid (EDTA) significantly enhanced sludge reduction, i.e., 49 ± 5% compared with 27 ± 1% of the control at the end the digestion process. Methane production was also improved in WAS without EPS by 8881 ± 109 CH4 ?mol g?1 dry-weight of sludge. Microbial activity was determined by denaturing gradient gel electrophoresis and real-time polymerase chain reaction, which showed that the hydrolysis and acetogenesis stages were enhanced by pretreatment with 2% EDTA, with a larger methanogenic community and better methane production.

Minh Tuan Nguyen; Nazlina Haiza Mohd Yasin; Toshiki Miyazaki; Toshinari Maeda

2014-01-01T23:59:59.000Z

80

The basics of coalbed methane  

SciTech Connect

The report is an overview of coalbed methane (CBM), also known as coal seam gas. It provides an overview of what coalbed methane is and the current status of global coalbed methane exploration and production. Topics covered in the report include: An analysis of the natural gas industry, including current and future production, consumption, and reserves; A detailed description of coalbed methane, its characteristics, and future potential; An analysis of the key business factors that are driving the increased interest in coalbed methane; An analysis of the barriers that are hindering the development of coalbed methane; An overview of the technologies used for coalbed methane production and water treatment; and Profiles of key coalbed methane producing countries. 25 figs., 5 tabs., 1 app.

NONE

2006-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

Enhanced coalbed methane recovery  

SciTech Connect

The recovery of coalbed methane can be enhanced by injecting CO{sub 2} in the coal seam at supercritical conditions. Through an in situ adsorption/desorption process the displaced methane is produced and the adsorbed CO{sub 2} is permanently stored. This is called enhanced coalbed methane recovery (ECBM) and it is a technique under investigation as a possible approach to the geological storage of CO{sub 2} in a carbon dioxide capture and storage system. This work reviews the state of the art on fundamental and practical aspects of the technology and summarizes the results of ECBM field tests. These prove the feasibility of ECBM recovery and highlight substantial opportunities for interdisciplinary research at the interface between earth sciences and chemical engineering.

Mazzotti, M.; Pini, R.; Storti, G. [ETH, Zurich (Switzerland). Inst. of Process Engineering

2009-01-15T23:59:59.000Z

82

Reading Comprehension - Digestion and Nutrition  

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

Digestion and Nutrition Digestion and Nutrition 1. The pouchlike muscular organ that secretes acids and digestive enzymes is the _________ stomach esophagus intestines . 2. _________ saliva enzymes chime is the watery material that results form digestion in the stomach. 3. Iron, potassium, and iodine are _________ vitamins minerals amino acids . 4. The human body is about 60 percent _________ salt water nutrients . 5. The teeth break down food by _________ chemical digestion mechanical digestion . 6. _________ Teeth Your tongue Saliva in the mouth helps to chemically digest food. 7. _________ Mechanical digestion Chemical digestion takes place in the mouth, stomach, and small intestine with the help of chemicals called _________ amino acids vitamins enzymes . 8. Proteins are made up of smaller building blocks called _________

83

Comparison of different liquid anaerobic digestion effluents as inocula and nitrogen sources for solid-state batch anaerobic digestion of corn stover  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Compared methane production of solid AD inoculated with different effluents. Black-Right-Pointing-Pointer Food waste effluent (FWE) had the largest population of acetoclastic methanogens. Black-Right-Pointing-Pointer Solid AD inoculated with FWE produced the highest methane yield at F/E ratio of 4. Black-Right-Pointing-Pointer Dairy waste effluent (DWE) was rich of cellulolytic and xylanolytic bacteria. Black-Right-Pointing-Pointer Solid AD inoculated with DWE produced the highest methane yield at F/E ratio of 2. - Abstract: Effluents from three liquid anaerobic digesters, fed with municipal sewage sludge, food waste, or dairy waste, were evaluated as inocula and nitrogen sources for solid-state batch anaerobic digestion of corn stover in mesophilic reactors. Three feedstock-to-effluent (F/E) ratios (i.e., 2, 4, and 6) were tested for each effluent. At an F/E ratio of 2, the reactor inoculated by dairy waste effluent achieved the highest methane yield of 238.5 L/kgVS{sub feed}, while at an F/E ratio of 4, the reactor inoculated by food waste effluent achieved the highest methane yield of 199.6 L/kgVS{sub feed}. The microbial population and chemical composition of the three effluents were substantially different. Food waste effluent had the largest population of acetoclastic methanogens, while dairy waste effluent had the largest populations of cellulolytic and xylanolytic bacteria. Dairy waste also had the highest C/N ratio of 8.5 and the highest alkalinity of 19.3 g CaCO{sub 3}/kg. The performance of solid-state batch anaerobic digestion reactors was closely related to the microbial status in the liquid anaerobic digestion effluents.

Xu Fuqing; Shi Jian [Department of Food, Agricultural and Biological Engineering, Ohio State University, Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691 (United States); Lv Wen; Yu Zhongtang [Department of Animal Sciences, Ohio State University, Columbus, OH 43210 (United States); Li Yebo, E-mail: li.851@osu.edu [Department of Food, Agricultural and Biological Engineering, Ohio State University, Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691 (United States)

2013-01-15T23:59:59.000Z

84

Direct Aromaization of Methane  

SciTech Connect

The thermal decomposition of methane offers significant potential as a means of producing higher unsaturated and aromatic hydrocarbons when the extent of reaction is limited. Work in the literature previous to this project had shown that cooling the product and reacting gases as the reaction proceeds would significantly reduce or eliminate the formation of solid carbon or heavier (Clo+) materials. This project studied the effect and optimization of the quenching process as a means of increasing the amount of value added products during the pyrolysis of methane. A reactor was designed to rapidly quench the free-radical combustion reaction so as to maximize the yield of aromatics. The use of free-radical generators and catalysts were studied as a means of lowering the reaction temperature. A lower reaction temperature would have the benefits of more rapid quenching as well as a more feasible commercial process due to savings realized in energy and material of construction costs. It was the goal of the project to identify promising routes from methane to higher hydrocarbons based on the pyrolysis of methane.

George Marcelin

1997-01-15T23:59:59.000Z

85

Can Algae utilize Methane?  

Science Journals Connector (OSTI)

... in connexion with oil prospecting, corrosion problems and formation of a microbial sludge in jet fuel tanks?. The scope of hydrocarbon microbiology has expanded rapidly in the meantime and currently ... the growth of photosynthetic sulphur bacteria in different gaseous environments Dr Enebo isolated the green alga Chlorella from highly reducing enrichment media in which carbonate and methane provided the carbon sources ...

Our Correspondent in Microbiology

1967-07-01T23:59:59.000Z

86

Methane and Coal  

Science Journals Connector (OSTI)

... stored source of the energy supplies of the world ; every twenty years the world burns a volume of coal equivalent to the volume of Snowdon (a cone of base ... hole method being most in favour. This method is being applied in about twelve British pits. The amount of methane drawn off appears to depend on the movement of the ...

ALFRED EGERTON

1952-07-19T23:59:59.000Z

87

Biomethane production by anaerobic digestion of organic waste  

Science Journals Connector (OSTI)

Abstract Anaerobic Digestion (AD) is a biological process that takes place naturally when bacteria break down organic matter in environments with or without oxygen. Controlled anaerobic digestion of organic waste in enclosed landfill will generate methane. Almost any organic material can be processed with AD, including waste paper and cardboard (of a grade that is too low to recycle because of food contamination), grass clippings, leftover food, industrial effluents, sewage and animal waste. AD produces biogas which is comprised of around 60% methane (CH4) and 40% carbon dioxide (CO2). This biogas can be used to generate heat or electricity and/or can be used as a vehicular fuel. If the intended use is for power generation the biogas must be scrubbed to remove a number of impurities. After conditioning the biogas can be used for onsite power generation, to heat homes or can be added to the national natural gas grid. In recent years several research groups have shown the possibility of upgrading the biogas for biomethane production [1]. This study will show the feasibility of integrating anaerobic digestion plant with onsite polymeric membrane purification system for conditioned biomethane production.

A. Molino; F. Nanna; Y. Ding; B. Bikson; G. Braccio

2013-01-01T23:59:59.000Z

88

Formation and retention of methane in coal  

SciTech Connect

The formation and retention of methane in coalbeds was studied for ten Utah coal samples, one Colorado coal sample and eight coal samples from the Argonne Premium Coal Sample Bank.Methane gas content of the Utah and Colorado coals varied from zero to 9 cm{sup 3}/g. The Utah coals were all high volatile bituminous coals. The Colorado coal was a gassy medium volatile bituminous coal. The Argonne coals cover a range or rank from lignite to low volatile bituminous coal and were used to determine the effect of rank in laboratory studies. The methane content of six selected Utah coal seams and the Colorado coal seam was measured in situ using a special sample collection device and a bubble desorbometer. Coal samples were collected at each measurement site for laboratory analysis. The cleat and joint system was evaluated for the coal and surrounding rocks and geological conditions were noted. Permeability measurements were performed on selected samples and all samples were analyzed for proximate and ultimate analysis, petrographic analysis, {sup 13}C NMR dipolar-dephasing spectroscopy, and density analysis. The observed methane adsorption behavior was correlated with the chemical structure and physical properties of the coals.

Hucka, V.J.; Bodily, D.M.; Huang, H.

1992-05-15T23:59:59.000Z

89

Anxiety and Digestion  

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

Anxiety and Digestion Anxiety and Digestion Name: Donna Location: N/A Country: N/A Date: N/A Question: Explain how anxiety may be responsible for slowing down the process of digestion Replies: Your body really has 2 nervous systems. One is the peripheral nervous system that controls how you move and think etc. the other is called the autonomic (not automatic) nervous system It controls all of your everyday functions such as your heart, your blood vessel diameter and your digestive system, etc. There are 2 divisions of the ANS. One is called the parasympathetic and the other is the sympathetic. The parasympathetic is your everyday division, and is usually in control. When you come upon a stressful or dangerous situation, your sympathetic division takes over. It gets you ready to "fight or flee". Some parts of your body are put on alert. Your blood vessels constrict in some areas and dilate in others to get blood flowing to areas that will help you in a dangerous situation and to get glucose (fuel) to those areas quickly. Your heart starts to beat faster to send blood to those areas quicker, your pupils dilate. Other parts of your body are put on hold; those that aren't needed in a danger situation. Your digestive system is one that is put on hold. When you are under stress, your body doesn't know whether you are in danger or not but acts like it is. So if you are under constant stress, your digestive system is affected.

90

PalladianDigest Transportation  

E-Print Network (OSTI)

PalladianDigest CONNECT. EMPOWER. GROW. Tackling Transportation Challenges Nebraska has been a vital link in the nation's transportation system since the days when carts, wagons to University of NebraskaĀ­Lincoln research. That's fine with UNL transportation researchers, said Larry Rilett

Farritor, Shane

91

Coal Bed Methane Primer  

SciTech Connect

During the second half of the 1990's Coal Bed Methane (CBM) production increased dramatically nationwide to represent a significant new source of income and natural gas for many independent and established producers. Matching these soaring production rates during this period was a heightened public awareness of environmental concerns. These concerns left unexplained and under-addressed have created a significant growth in public involvement generating literally thousands of unfocused project comments for various regional NEPA efforts resulting in the delayed development of public and fee lands. The accelerating interest in CBM development coupled to the growth in public involvement has prompted the conceptualization of this project for the development of a CBM Primer. The Primer is designed to serve as a summary document, which introduces and encapsulates information pertinent to the development of Coal Bed Methane (CBM), including focused discussions of coal deposits, methane as a natural formed gas, split mineral estates, development techniques, operational issues, producing methods, applicable regulatory frameworks, land and resource management, mitigation measures, preparation of project plans, data availability, Indian Trust issues and relevant environmental technologies. An important aspect of gaining access to federal, state, tribal, or fee lands involves education of a broad array of stakeholders, including land and mineral owners, regulators, conservationists, tribal governments, special interest groups, and numerous others that could be impacted by the development of coal bed methane. Perhaps the most crucial aspect of successfully developing CBM resources is stakeholder education. Currently, an inconsistent picture of CBM exists. There is a significant lack of understanding on the parts of nearly all stakeholders, including industry, government, special interest groups, and land owners. It is envisioned the Primer would being used by a variety of stakeholders to present a consistent and complete synopsis of the key issues involved with CBM. In light of the numerous CBM NEPA documents under development this Primer could be used to support various public scoping meetings and required public hearings throughout the Western States in the coming years.

Dan Arthur; Bruce Langhus; Jon Seekins

2005-05-25T23:59:59.000Z

92

Methane-steam reforming  

SciTech Connect

The literature relating to the kinetics of methane-steam reforming involving integral and differential reactor data, porous nickel catalysts and nickel foil, and data over large ranges of temperature (500 to 1700/sup 0/F), pressure (0.01 to 50 atm), and intrinsic catalyst activities (200,000-fold) was reviewed. A simple reversible first-order kinetic expression for the steam-methane reaction appears to be applicable throughout the operable region of steam-to-carbon ratios. Internal pore diffusion limitation on the conversion rate, due to catalyst size and/or intrinsic catalyst activity and total operating pressure was underlined. S-shaped Arrhenium plots (changing activation energy) are obtained when steam reforming is conducted over a temperature range sufficient to produce intrinsic kinetics (low temperature, inactive catalyst, or small catalyst size), pore diffusional limitations, and reaction on the outside surface. Homogeneous gas-phase kinetics appear to contribute only at relatively high temperature (1400/sup 0/F). In steam reforming, the water-gas shift reaction departs from its equilibrium position, especially at low methane conversion level. A general correlation of approach to water-gas shift equilibration as a function of conversion level only was indicated. (DP) 18 figures, 6 tables.

Van Hook, J.P.

1980-01-01T23:59:59.000Z

93

Methane/nitrogen separation process  

DOE Patents (OSTI)

A membrane separation process is described for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. The authors have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen. 11 figs.

Baker, R.W.; Lokhandwala, K.A.; Pinnau, I.; Segelke, S.

1997-09-23T23:59:59.000Z

94

Methane/nitrogen separation process  

DOE Patents (OSTI)

A membrane separation process for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. We have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen.

Baker, Richard W. (Palo Alto, CA); Lokhandwala, Kaaeid A. (Menlo Park, CA); Pinnau, Ingo (Palo Alto, CA); Segelke, Scott (Mountain View, CA)

1997-01-01T23:59:59.000Z

95

Bioconversion of biomass to methane  

SciTech Connect

The conversion of biomass to methane is described. The biomethane potentials of various biomass feedstocks from our laboratory and literature is summarized.

Hashimoto, A.G. [Oregon State Univ., Corvallis, OR (United States)

1995-12-01T23:59:59.000Z

96

NETL: Methane Hydrates - DOE/NETL Projects  

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

Ā– Formation and Dissociation of Methane Hydrates Last Reviewed 07/7/2011 Ā– Formation and Dissociation of Methane Hydrates Last Reviewed 07/7/2011 Project Objective Observe hydrate formation and dissociation phenomena in various porous media and characterize hydrate-bearing sediments by estimating physical properties (kinetic parameters for hydrate formation and dissociation, thermal conductivity, permeability, relative permeability, and mechanical strength) to enhance fundamental understanding on hydrate formation and accumulation and to support numerical simulations and potential gas hydrate production Project Performers Yongkoo Seol Ā– NETL Office of Research & Development Jeong Choi Ā– Oak Ridge Institute for Science and Education Jongho Cha-Virginia Polytech Institute Project Location National Energy Technology Laboratory - Morgantown, West Virginia

97

Federal Offshore California Coalbed Methane Proved Reserves ...  

Gasoline and Diesel Fuel Update (EIA)

12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Federal Offshore, Pacific (California) Coalbed Methane Proved Reserves, Reserves Changes, and...

98

methane hydrate science plan-final.indd  

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

2013 Principal Authors: Consor um for Ocean Leadership and the Methane Hydrate Project Science Team December 2013 DOE Award Number: DE-FE0010195 Project Title: Methane Hydrate...

99

Ohio Coalbed Methane Production (Billion Cubic Feet)  

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

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Ohio Coalbed Methane Proved Reserves, Reserves...

100

Florida Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Florida Coalbed Methane Proved Reserves, Reserves...

Note: This page contains sample records for the topic "methane digester property" 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

Michigan Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Michigan Coalbed Methane Proved Reserves, Reserves...

102

Enhanced Renewable Methane Production System | Argonne National...  

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

Enhanced Renewable Methane Production System Technology available for licensing: Enhanced renewable methane production system provides a low-cost process that accelerates...

103

Contribution of Anaerobic Digesters to Emissions Mitigation and Electricity Generation Under U.S. Climate Policy  

Science Journals Connector (OSTI)

Anaerobic digesters (ADs) can produce renewable energy from livestock manure, prevent the release of methane, and reduce air and water pollution, and digested manure can be applied to crops as a fertilizer. ... Comprehensive inclusion of the GHG mitigation benefits and low-carbon energy generation of AD projects within a federal climate and energy policy would further enhance prospects for new projects. ... Arthurson, V.Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land - Potential Benefits and Drawbacks Energies 2009, 2 ( 2) 226– 242 ...

David P. M. Zaks; Niven Winchester; Christopher J. Kucharik; Carol C. Barford; Sergey Paltsev; John M. Reilly

2011-07-15T23:59:59.000Z

104

Potential digestibilities and digestion kinetics of forage cell wall components  

E-Print Network (OSTI)

LITERATURE REVIEW. EXPERIMENTAL PROCEDURES. Chemical Analysis Colorimetric Determinations Statistical Evaluation. 10 13 15 IV RESULTS AND DISCUSSION 16 V Characteristics of Forage Kinetics of Cell Wall Digestion SUMMARY AND CONCLUSIONS... and both of these variables appear to be the result of several dynamic processes. The amount of structural carbohydrates, the main constituents of the fibrous cell wall, ruminants can digest appears to be limited by the potential digestibility...

Tauskey, William Henry

1973-01-01T23:59:59.000Z

105

Coal mine methane global review  

SciTech Connect

This is the second edition of the Coal Mine Methane Global Overview, updated in the summer of 2008. This document contains individual, comprehensive profiles that characterize the coal and coal mine methane sectors of 33 countries - 22 methane to market partners and an additional 11 coal-producing nations. The executive summary provides summary tables that include statistics on coal reserves, coal production, methane emissions, and CMM projects activity. An International Coal Mine Methane Projects Database accompanies this overview. It contains more detailed and comprehensive information on over two hundred CMM recovery and utilization projects around the world. Project information in the database is updated regularly. This document will be updated annually. Suggestions for updates and revisions can be submitted to the Administrative Support Group and will be incorporate into the document as appropriate.

NONE

2008-07-01T23:59:59.000Z

106

7.4 Landfill Methane Utilization  

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

A chapter on Landfill Methane Utilization from the Clean Energy Strategies for Local Governments publication.

107

Chapter 8 - Methane Hydrates  

Science Journals Connector (OSTI)

Gas hydrate is a solid, naturally occurring substance consisting predominantly of methane gas and water. Recent scientific drilling programs in Japan, Canada, the United States, Korea and India have demonstrated that gas hydrate occurs broadly and in a variety of forms in shallow sediments of the outer continental shelves and in Arctic regions. Field, laboratory and numerical modelling studies conducted to date indicate that gas can be extracted from gas hydrates with existing production technologies, particularly for those deposits in which the gas hydrate exists as pore-filling grains at high saturation in sand-rich reservoirs. A series of regional resource assessments indicate that substantial volumes of gas hydrate likely exist in sand-rich deposits. Recent field programs in Japan, Canada and in the United States have demonstrated the technical viability of methane extraction from gas-hydrate-bearing sand reservoirs and have investigated a range of potential production scenarios. At present, basic reservoir depressurisation shows the greatest promise and can be conducted using primarily standard industry equipment and procedures. Depressurisation is expected to be the foundation of future production systems; additional processes, such as thermal stimulation, mechanical stimulation and chemical injection, will likely also be integrated as dictated by local geological and other conditions. An innovative carbon dioxide and methane swapping technology is also being studied as a method to produce gas from select gas hydrate deposits. In addition, substantial additional volumes of gas hydrate have been found in dense arrays of grain-displacing veins and nodules in fine-grained, clay-dominated sediments; however, to date, no field tests, and very limited numerical modelling, have been conducted with regard to the production potential of such accumulations. Work remains to further refine: (1) the marine resource volumes within potential accumulations that can be produced through exploratory drilling programs; (2) the tools for gas hydrate detection and characterisation from remote sensing data; (3) the details of gas hydrate reservoir production behaviour through additional, well-monitored and longer duration field tests and (4) the understanding of the potential environmental impacts of gas hydrate resource development. The results of future production tests, in the context of varying market and energy supply conditions around the globe, will be the key to determine the ultimate timing and scale of the commercial production of natural gas from gas hydrates.

Ray Boswell; Koji Yamamoto; Sung-Rock Lee; Timothy Collett; Pushpendra Kumar; Scott Dallimore

2014-01-01T23:59:59.000Z

108

Method of coalbed methane production  

SciTech Connect

This patent describes a method for producing coalbed methane from a coal seam containing coalbed methane and penetrated by at least one injection well and at least one producing well. It comprises: injecting an inert gas through the injection well and into the coal seam. The inert gas being a gas that does not react with the coal under conditions of use and that does not significantly adsorb to the coal; and producing a gas from the production well which consists essentially of the inert gas, coalbed methane, or mixtures thereof.

Puri, R.; Stein, M.H.

1989-11-28T23:59:59.000Z

109

The Anaerobic Digestion of Organic  

E-Print Network (OSTI)

, pursuing alternative and renewable energy has become imperative from both practical and ethical standpoints production is just one of the many renewable energy alternatives out there. Defined as the digestion of Anaerobic Digestion 3.1. Municipal Waste Management 3.2. Climate Change Mitigation 3.2.1. Untreated

Iglesia, Enrique

110

Texas--State Offshore Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Texas State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production Coalbed Methane...

111

Louisiana--State Offshore Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production LA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production Coalbed Methane...

112

Methane Credit | Open Energy Information  

Open Energy Info (EERE)

Methane Credit Methane Credit Jump to: navigation, search Name Methane Credit Place Charlotte, North Carolina Zip 28273 Product Specialises in utilising methane produced on municipal landfill sites. Coordinates 35.2225Ā°, -80.837539Ā° 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":35.2225,"lon":-80.837539,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

113

NETL: Methane Hydrates - Hydrate Newsletter  

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

Methane Hydrate R&D Program Newsletter Methane Hydrate R&D Program Newsletter An image of a hydrate burning overlayed with the Newsletter Title: Fire in the Ice The methane hydrate newsletter, Fire in the Ice, is a bi-annual publication highlighting the latest developments in international gas hydrates R&D. Fire in the Ice promotes the exchange of information amoung those involved in gas hydrates research and development, and also recognizes the efforts of a hydrate researcher in each issue. The newsletter now reaches nearly 1300 scientists and other interested individuals in sixteen countries. To subscribe electronically to Fire in the Ice please send an email to karl.lang@contr.netl.doe.gov Please click on the links below to access issues of "Fire in the Ice". More on Methane Hydrates

114

Der atmosphärische Kreislauf von Methan  

Science Journals Connector (OSTI)

Present methane concentrations in the northern troposphere average 1.65 ppm. Most CH4 is of recent biogenic origin. 14C analyses indicate that no more than 10% is released by fossil sources. The various CH4-produ...

D. H. Ehhalt

1979-06-01T23:59:59.000Z

115

ISSUE PAPER METHANE AVOIDANCE FROM  

E-Print Network (OSTI)

.........................................................................................1 1.2. GHG Emissions from Organic Waste...........................................................................................................39 6.2. Standard Methods for Quantifying Methane from Organic Waste in Landfills...40 6.3. GHG.2. Compost GHG Potential

Brown, Sally

116

Emission of methane from plants  

Science Journals Connector (OSTI)

...basis for the efforts to ameliorate fluxes of this potent greenhouse gas, which may contribute significantly to global warming...was emitting significant quantities of methane under ambient lighting in laboratory-controlled conditions. We also examined other...

2009-01-01T23:59:59.000Z

117

Citrus essential oils and their influence on the anaerobic digestion process: An overview  

Science Journals Connector (OSTI)

Abstract Citrus waste accounts for more than half of the whole fruit when processed for juice extraction. Among valorisation possibilities, anaerobic digestion for methane generation appears to be the most technically feasible and environmentally friendly alternative. However, citrus essential oils can inhibit this biological process. In this paper, the characteristics of citrus essential oils, as well as the mechanisms of their antimicrobial effects and potential adaptation mechanisms are reviewed. Previous studies of anaerobic digestion of citrus waste under different conditions are presented; however, some controversy exists regarding the limiting dosage of limonene for a stable process (24–192 mg of citrus essential oil per liter of digester and day). Successful strategies to avoid process inhibition by citrus essential oils are based either on recovery or removal of the limonene, by extraction or fungal pre-treatment respectively.

B. Ruiz; X. Flotats

2014-01-01T23:59:59.000Z

118

Improved bio-energy yields via sequential ethanol fermentation and biogas digestion of steam exploded oat straw  

Science Journals Connector (OSTI)

Using standard laboratory equipment, thermochemically pretreated oat straw was enzymatically saccharified and fermented to ethanol, and after removal of ethanol the remaining material was subjected to biogas digestion. A detailed mass balance calculation shows that, for steam explosion pretreatment, this combined ethanol fermentation and biogas digestion converts 85–87% of the higher heating value (HHV) of holocellulose (cellulose and hemicellulose) in the oat straw into biofuel energy. The energy (HHV) yield of the produced ethanol and methane was 9.5–9.8 MJ/(kg dry oat straw), which is 28–34% higher than direct biogas digestion that yielded 7.3–7.4 MJ/(kg dry oat straw). The rate of biogas formation from the fermentation residues was also higher than from the corresponding pretreated but unfermented oat straw, indicating that the biogas digestion could be terminated after only 24 days. This suggests that the ethanol process acts as an additional pretreatment for the biogas process.

Debebe Yilma Dererie; Stefan Trobro; Majid Haddad Momeni; Henrik Hansson; Johanna Blomqvist; Volkmar Passoth; Anna Schnürer; Mats Sandgren; Jerry Ståhlberg

2011-01-01T23:59:59.000Z

119

NETL: Methane Hydrates - DOE/NETL Projects - Natural Gas Hydrates in  

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

The National Methane Hydrates R&D Program The National Methane Hydrates R&D Program DOE/NETL Methane Hydrate Projects Natural Gas Hydrates in Permafrost and Marine Settings: Resources, Properties, and Environmental Issues Last Reviewed 12/30/2013 DE-FE0002911 Goal The objective of this DOE-USGS Interagency Agreement is to provide world-class expertise and research in support of the goals of the 2005 Energy Act for National Methane Hydrates R&D, the DOE-led U.S. interagency roadmap for gas hydrates research, and elements of the USGS mission related to energy resources, global climate, and geohazards. This project extends USGS support to the DOE Methane Hydrate R&D Program previously conducted under DE-AI26-05NT42496. Performer U.S. Geological Survey at Woods Hole, MA, Denver, CO, and Menlo Park, CA

120

Coalbed Methane Proved Reserves  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2003 2004 2005 2006 2007 2008 View History U.S. 18,743 18,390 19,892 19,620 21,874 20,798 1989-2008 Alabama 1,665 1,900 1,773 2,068 2,126 1,727 1989-2008 Alaska 0 0 2007-2008 Arkansas 31 31 2007-2008 California 0 0 2007-2008 Colorado 6,473 5,787 6,772 6,344 7,869 8,238 1989-2008 Florida 0 0 2007-2008 Kansas 340 301 2007-2008 Kentucky 0 0 2007-2008 Louisiana 7 9 2007-2008 North 7 9 2007-2008 South Onshore 0 0 2007-2008 South Offshore 0 0 2007-2008 Michigan 0 0 2007-2008 Mississippi 0 0 2007-2008 Montana 66 75 2007-2008 New Mexico 4,396 5,166 5,249 4,894 4,169 3,991 1989-2008

Note: This page contains sample records for the topic "methane digester property" 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

Characterization of Methane Degradation and Methane-Degrading Microbes in Alaska Coastal Water  

SciTech Connect

The net flux of methane from methane hydrates and other sources to the atmosphere depends on methane degradation as well as methane production and release from geological sources. The goal of this project was to examine methane-degrading archaea and organic carbon oxidizing bacteria in methane-rich and methane-poor sediments of the Beaufort Sea, Alaska. The Beaufort Sea system was sampled as part of a multi-disciplinary expedition (ā??Methane in the Arctic Shelfā?¯ or MIDAS) in September 2009. Microbial communities were examined by quantitative PCR analyses of 16S rRNA genes and key methane degradation genes (pmoA and mcrA involved in aerobic and anaerobic methane degradation, respectively), tag pyrosequencing of 16S rRNA genes to determine the taxonomic make up of microbes in these sediments, and sequencing of all microbial genes (ā??metagenomesā?¯). The taxonomic and functional make-up of the microbial communities varied with methane concentrations, with some data suggesting higher abundances of potential methane-oxidizing archaea in methane-rich sediments. Sequence analysis of PCR amplicons revealed that most of the mcrA genes were from the ANME-2 group of methane oxidizers. According to metagenomic data, genes involved in methane degradation and other degradation pathways changed with sediment depth along with sulfate and methane concentrations. Most importantly, sulfate reduction genes decreased with depth while the anaerobic methane degradation gene (mcrA) increased along with methane concentrations. The number of potential methane degradation genes (mcrA) was low and inconsistent with other data indicating the large impact of methane on these sediments. The data can be reconciled if a small number of potential methane-oxidizing archaea mediates a large flux of carbon in these sediments. Our study is the first to report metagenomic data from sediments dominated by ANME-2 archaea and is one of the few to examine the entire microbial assemblage potentially involved in anaerobic methane oxidation.

David Kirchman

2011-12-31T23:59:59.000Z

122

Methane oxidation rates in the anaerobic sediments of Saanich Inlet  

Science Journals Connector (OSTI)

water methane concentration were avail- able. ... water solute concentrations and methane oxidation rates ..... Diffusion of light paraffin hydrocarbons in water.

2000-02-09T23:59:59.000Z

123

RCM Digesters | Open Energy Information  

Open Energy Info (EERE)

RCM Digesters RCM Digesters Jump to: navigation, search Name RCM Digesters Place Berkeley, California Zip CA 94704 Product Manufactures anaerobic manure digesters which process animal waste into biogas. Coordinates 38.748315Ā°, -90.334929Ā° 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":38.748315,"lon":-90.334929,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

124

NETL: Methane Hydrates - Global Assessment of Methane Gas Hydrates  

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

Global Assessment of Methane Gas Hydrates Last Reviewed 12/18/2013 Global Assessment of Methane Gas Hydrates Last Reviewed 12/18/2013 DE-FE0003060 Goal The goal of this project is to develop a global assessment of methane gas hydrates that will facilitate informed decision-making regarding the potential development of gas hydrate resources between the scientific community and other stakeholders/decision makers. The Assessment will provide science-based information on the role of gas hydrates in natural climate change and the carbon cycle, their sensitivity to climate change, and the potential environmental and socio-economic impacts of hydrate production. Performers Stiftelsen GRID-Arendal, Arendal, Norway Funding Institutions United Nations Environment Programme (UNEP) Statoil Schlumberger United States Department of Energy (USDOE)

125

Chapter 18 - Worldwide Coal Mine Methane and Coalbed Methane Activities  

Science Journals Connector (OSTI)

Abstract The chapter provides an overview of coal bed methane production in all countries (except USA; covered in Chapter 17) around the world where there is a viable coal deposit. Coal deposits are shown in a map and coal bed methane reserves are estimated. All countries can follow the lead provided by USA in CBM production where 10% of total gas consumption (2 TCF/year) comes from coal seams. Exploitation of thick and deep coal seams using the latest technology can create a vast source of domestic energy for many countries around the world.

Charlee Boger; James S. Marshall; Raymond C. Pilcher

2014-01-01T23:59:59.000Z

126

Why Sequence a Methane-Oxidizing Archaean?  

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

a Methane-Oxidizing Archaeon? a Methane-Oxidizing Archaeon? Methane is a potent greenhouse gas whose atmospheric concentration has increased significantly because of anthropogenic activities and fluctuated naturally over glacial and interglacial cycles. While the importance of methane in Earth's climate dynamics has been well established, the global processes regulating its oceanic cycling remain poorly understood. Although there are high rates of methane production in many marine sedimentary environments (including a number that have been targeted as petroleum reserves), net methane sources from the ocean to the atmosphere appear to be small. This is due in large part to a biogeochemical process known as the anaerobic oxidation of methane (AOM). Microbially mediated AOM reduces methane flux from ocean to atmosphere, stimulates subsurface microbial

127

NETL: Methane Hydrates - DOE/NETL Projects  

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

Assessing the Efficacy of the Aerobic Methanotropic Biofilter in Methane Hydrate Environments Last Reviewed 1/8/2013 Assessing the Efficacy of the Aerobic Methanotropic Biofilter in Methane Hydrate Environments Last Reviewed 1/8/2013 DE-NT0005667 Goal The goal of this project is to assess the efficacy of aerobic methanotrophy in preventing the escape of methane from marine, hydrate-bearing reservoirs to the atmosphere and ultimately to better define the role of aerobic methanotrophy in the global carbon cycle. Graph overlayed on photo - Methane seeps with the resulting methane plume Methane seeps with the resulting methane plume, Geophysical Research Letters, November 2007 Performers University of California Ā– Santa Barbara, Santa Barbara (UCSB), CA 93106 Background The global methane reservoir in the form of gas hydrate is estimated at 500Ā–10,000 Gt (KVENVOLDEN, 1995; MILKOV, 2004). This pool of carbon

128

Miscellaneous States Coalbed Methane Proved Reserves (Billion...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

129

Carbon Dioxide and Methane Emissions from Estuaries  

Science Journals Connector (OSTI)

Carbon dioxide and methane emissions from estuaries are reviewed in relation with biogeochemical processes and carbon cycling. In estuaries, carbon dioxide and methane emissions show a large spatial and temporal ...

Gwenaėl Abril; Alberto Vieira Borges

2005-01-01T23:59:59.000Z

130

Optical constants of liquid and solid methane  

Science Journals Connector (OSTI)

The optical constants nr + ini of liquid methane and phase I solid methane were determined over the entire spectral range by the use of various data sources published in the...

Martonchik, John V; Orton, Glenn S

1994-01-01T23:59:59.000Z

131

coalbed methane | OpenEI  

Open Energy Info (EERE)

coalbed methane coalbed methane Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations Source NREL Date Released April 30th, 2005 (9 years ago) Date Updated November 07th, 2007 (7 years ago) Keywords coalbed methane GEF Kenya NREL SWERA TMY UNEP Data application/zip icon Download Data (zip, 5.4 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

132

Method for the photocatalytic conversion of methane  

DOE Patents (OSTI)

A method for converting methane to methanol is provided comprising subjecting the methane to visible light in the presence of a catalyst and an electron transfer agent. Another embodiment of the invention provides for a method for reacting methane and water to produce methanol and hydrogen comprising preparing a fluid containing methane, an electron transfer agent and a photolysis catalyst, and subjecting said fluid to visible light for an effective period of time. 3 figs.

Noceti, R.P.; Taylor, C.E.; D`Este, J.R.

1998-02-24T23:59:59.000Z

133

Enhanced methane production from wool textile residues by thermal and enzymatic pretreatment  

Science Journals Connector (OSTI)

Abstract Methane production from two types of wool textile wastes (TW1 and TW2) was investigated. To improve the digestibility of these textiles, different pretreatments were applied, and comprised thermal treatment (at 120 °C for 10 min), enzymatic hydrolysis (using an alkaline endopeptidase at different levels of enzymatic loading, at 55 °C for 0, 2, and 8 h), and a combination of these two treatments. Soluble protein concentration and sCOD (soluble chemical oxygen demand) were measured to evaluate the effectivity of the different pretreatment conditions to degrade wool keratin. The sCOD as well as the soluble protein content had increased in both textile samples in comparison to untreated samples, as a response to the different pretreatments indicating breakdown of the wool keratin structure. The combined treatments and the thermal treatments were further evaluated by anaerobic batch digestion assays at 55 °C. Combined thermal and enzymatic treatment of TW1 and TW2 resulted in methane productions of 0.43 N m3/kg VS and 0.27 N m3/kg VS, i.e., 20 and 10 times higher yields, respectively, than that gained from untreated samples. The application of thermal treatment by itself was less effective and resulted in increasing the methane production by 10-fold for TW1 and showing no significant improvement for TW2.

Maryam M. Kabir; Gergely Forgįcs; Ilona Sįrvįri Horvįth

2013-01-01T23:59:59.000Z

134

Electron Transport in Methane Gas  

Science Journals Connector (OSTI)

We propose a kinetic theory for electron-drift-velocity maxima in polyatomic gases. The case of methane is considered in detail, and good agreement with experiment is obtained with use of model cross sections. The Boltzmann equation is solved directly by applying an iterative numerical technique, which converges well when inelastic scattering effects are important.

Peter Kleban and H. Ted Davis

1977-08-22T23:59:59.000Z

135

Methane production by attached film  

DOE Patents (OSTI)

A method for purifying wastewater of biodegradable organics by converting the organics to methane and carbon dioxide gases is disclosed, characterized by the use of an anaerobic attached film expanded bed reactor for the reaction process. Dilute organic waste material is initially seeded with a heterogeneous anaerobic bacteria population including a methane-producing bacteria. The seeded organic waste material is introduced into the bottom of the expanded bed reactor which includes a particulate support media coated with a polysaccharide film. A low-velocity upward flow of the organic waste material is established through the bed during which the attached bacterial film reacts with the organic material to produce methane and carbon dioxide gases, purified water, and a small amount of residual effluent material. The residual effluent material is filtered by the film as it flows upwardly through the reactor bed. In a preferred embodiment, partially treated effluent material is recycled from the top of the bed to the bottom of the bed for further treatment. The methane and carbon dioxide gases are then separated from the residual effluent material and purified water.

Jewell, William J. (202 Eastwood Ave., Ithaca, NY 14850)

1981-01-01T23:59:59.000Z

136

Methane Hydrate Advisory Committee | Department of Energy  

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

Methane Hydrate Advisory Methane Hydrate Advisory Committee Methane Hydrate Advisory Committee The Methane Hydrate Advisory Committee was created in response to provisions of the Methane Hydrate Research and Development Act of 2000 and reauthorized by the Energy Policy Act of 2005. The Committee is to advise the Secretary of Energy on potential applications of methane hydrate; assist in developing recommendations and priorities for the methane hydrate research and development program; and submit to Congress one or more reports on an assessment of the research program and an assessment of the DOE 5-year research plan. The Committee's charter stipulates that up to 15 members can be appointed by the Secretary of Energy, representing institutions of higher education, industrial enterprises and oceanographic institutions and state agencies.

137

Methane Hydrate Production Feasibility | Department of Energy  

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

Production Feasibility Production Feasibility Methane Hydrate Production Feasibility The red curves are temperature profiles for various water depths; the blue line shows methane hydrate stability relative to temperature and pressure. The area enclosed by the two curves represents the area of methane hydrate stability. The red curves are temperature profiles for various water depths; the blue line shows methane hydrate stability relative to temperature and pressure. The area enclosed by the two curves represents the area of methane hydrate stability. Methane, the predominant component of natural gas, forms hydrate in the presence of water, low temperatures and high pressures. Alternatively, when the temperature is increased or the pressure decreased so that hydrates are outside their stability field, they dissociate into methane and water.

138

Biofuels Digest | Open Energy Information  

Open Energy Info (EERE)

Digest Digest Jump to: navigation, search Name Biofuels Digest Address 801 Brickell Avenue Suite 900 Place Miami, Florida Zip 33131 Sector Services Product Information Year founded 2007 Number of employees 1-10 Phone number 786-393-8530 Website http://www.biofuelsdigest.com Coordinates 25.765653Ā°, -80.190405Ā° 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":25.765653,"lon":-80.190405,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

139

Formation and retention of methane in coal. Final report  

SciTech Connect

The formation and retention of methane in coalbeds was studied for ten Utah coal samples, one Colorado coal sample and eight coal samples from the Argonne Premium Coal Sample Bank.Methane gas content of the Utah and Colorado coals varied from zero to 9 cm{sup 3}/g. The Utah coals were all high volatile bituminous coals. The Colorado coal was a gassy medium volatile bituminous coal. The Argonne coals cover a range or rank from lignite to low volatile bituminous coal and were used to determine the effect of rank in laboratory studies. The methane content of six selected Utah coal seams and the Colorado coal seam was measured in situ using a special sample collection device and a bubble desorbometer. Coal samples were collected at each measurement site for laboratory analysis. The cleat and joint system was evaluated for the coal and surrounding rocks and geological conditions were noted. Permeability measurements were performed on selected samples and all samples were analyzed for proximate and ultimate analysis, petrographic analysis, {sup 13}C NMR dipolar-dephasing spectroscopy, and density analysis. The observed methane adsorption behavior was correlated with the chemical structure and physical properties of the coals.

Hucka, V.J.; Bodily, D.M.; Huang, H.

1992-05-15T23:59:59.000Z

140

NETL: Methane Hydrates - DOE/NETL Projects  

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

Petrophysical Characterization and Reservoir Simulator for Gas Hydrate Production and Hazard Avoidance in the Gulf of Mexico Petrophysical Characterization and Reservoir Simulator for Gas Hydrate Production and Hazard Avoidance in the Gulf of Mexico DE-FC26-02NT41327 Goal The project goal was to develop new methodologies to characterize the physical properties of methane hydrate and hydrate sediment systems. Performers Westport Technology Center International - Houston, TX University of Houston - Houston, TX Results Project researchers created a pressure cell for measuring acoustic velocity and resistivity on hydrate-sediment cores. They utilized the measurements for input to an existing reservoir model for evaluating possible offshore hydrate accumulations. The organization of an industry-led Advisory Board and the development of a Research Management Plan have been completed. The development of a handbook for transporting, preserving, and storing hydrate core samples brought from the field to the laboratory was completed and distributed for review by industry and researchers.

Note: This page contains sample records for the topic "methane digester property" 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

NETL: Methane Hydrates - DOE/NETL Projects  

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

If you need help finding information on a particular project, please contact the content manager. If you need help finding information on a particular project, please contact the content manager. Search Hydrates Projects Active Projects | Completed Projects Click on project number for a more detailed description of the project. Project Number Project Name Primary Performer DE-FC26-01NT41332 Alaska North Slope Gas Hydrate Reservoir Characterization BP Exploration Alaska, Inc. DE-FC26-01NT41330 Characterizing Natural Gas Hydrates in the Deep Water Gulf of Mexico: Applications for Safe Exploration Chevron Energy Technology Company DE-FE0009897 Hydrate-Bearing Clayey Sediments: Morphology, Physical Properties, Production and Engineering/Geological Implications Georgia Tech Research Corporation DE-FE0009904 Structural and Stratigraphic Controls on Methane Hydrate Occurrence and Distribution: Gulf of Mexico, Walker Ridge 313 and Green Canyon 955 Oklahoma State University

142

NETL: Methane Hydrates - DOE/NETL Projects  

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

Mechanical Testing of Gas Hydrate/Sediment Samples Mechanical Testing of Gas Hydrate/Sediment Samples DE-AT26-99FT40267 Goal Develop understanding of the mechanical characteristics of hydrate-containing sediments. Background The ACE CRREL has a unique group of experienced personnel that have studied the mechanical characteristics of ice and permafrost that can be applied to the study and characterization of the mechanical properties of gas hydrates. The effort aims to quantify the mechanical characteristics of methane hydrate and hydrate cemented sediments for use in models of the dynamic behavior of sediments related to drilling and seafloor installations in the Gulf of Mexico. Performers US Army Corp of Engineers, Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory (CRREL) - project management and research products

143

Ozone treatment of biomass to enhance digestibility  

E-Print Network (OSTI)

is very resistant to enzymatic degradation. Lignocellulosic materials require pretreatment to enhance their digestibility. The main objective of this research was to further enhance the digestibility of biomass (bagasse) with ozonation as a follow...

Almendarez, Maria Elena

2000-01-01T23:59:59.000Z

144

Kinetic modeling and experimentation of anaerobic digestion  

E-Print Network (OSTI)

Anaerobic digesters convert organic waste (agricultural and food waste, animal or human manure, and other organic waste), into energy (in the form of biogas or electricity). An added benefit to bio-digestion is a leftover ...

Rea, Jonathan (Jonathan E.)

2014-01-01T23:59:59.000Z

145

Inactivation of poliovirus in digested sludge.  

Science Journals Connector (OSTI)

...Inactivation of poliovirus in digested sludge. R L Ward C S Ashley The effect of anaerobically digested sludge on poliovirus during incubation at temperatures...Although virus was fully recoverable from sludge, its infectivity decreased in proportion...

R L Ward; C S Ashley

1976-06-01T23:59:59.000Z

146

?enseignement de ?endoscopie digestive en Italie  

Science Journals Connector (OSTI)

En Italie, nous disposons de deux écoles de postgraduat : Gastroentérologie et Endoscopie Digestive et ?autre part : Chirurgie Digestive et Endoscopie Chirurgicale. Le premier cours dure quatre ans, le second cin...

A. Russo

1991-07-01T23:59:59.000Z

147

Methane production from marine biomass  

SciTech Connect

The overall concept of the giant brown kelp farm and conversion system, the integrated research program engaged in its study, and IGT's work on biogasification process development are discussed. A summary of results to date on anaerobic digestion will be emphasized. (MHR)

Chynoweth, D.P.; Srivastava, V.J.

1980-01-01T23:59:59.000Z

148

Nickel crystallite thermometry during methanation  

SciTech Connect

A magnetic method to measure the average temperature of superparamagnetic nickel crystallites has been applied during CO methanation. The method takes advantage of the temperature dependence of the low field magnetization of such catalysts; however, the adsorption of carbon monoxide and the formation of surface carbon species complicate the interpretation of results. Calibrations to account for temperature change and the adsorption of reactants are described. The calibration for the effects of CO is based on the assumption that the interaction of CO with nickel is the same for methanation and disproportionation. Interphase heat transfer calculations based on the thermometric data compare favorably with previous results from ethane hyrogenolysis, and give no indication of microscopic temperature differences between the nickel crystallites and support.

Ludlow, D.K.; Cale, T.S.

1986-01-01T23:59:59.000Z

149

Doubling of atmospheric methane supported  

SciTech Connect

Atmospheric methane over the past 27,000 years was measured by analyzing air trapped in glacial ice in Greenland and Antarctica. Atmospheric concentrations were stable over that period until about 200 years b.p. In the last 200 years they have more than doubled. This change in concentration is correlated with the increase in human population; the implications for climate modification are discussed. 1 figure, 3 references.

Kerr, R.A.

1984-11-23T23:59:59.000Z

150

A study on the solubility of heavy hydrocarbons in liquid methane and methane containing mixtures.  

E-Print Network (OSTI)

??The solubilities of the hydrocarbons n-butane, n-pentane, n-hexane, n-octane, and n-nonane in liquid methane and of n-hexane in the mixed solvents of methane and ethane… (more)

Brew, T. C. L.

2009-01-01T23:59:59.000Z

151

Plasma catalytic reforming of methane  

Science Journals Connector (OSTI)

Thermal plasma technology can be efficiently used in the production of hydrogen and hydrogen-rich gases from methane and a variety of fuels. This article describes progress in plasma reforming experiments and calculations of high temperature conversion of methane using heterogeneous processes. The thermal plasma is a highly energetic state of matter that is characterized by extremely high temperatures (several thousand degrees Celsius), and a high degree of dissociation and a substantial degree of ionization. The high temperatures accelerate the reactions involved in the reforming process. Hydrogen-rich gas (40% H2, 17% CO2 and 33% N2, for partial oxidation/water shifting) can be efficiently made in compact plasma reformers. Experiments have been carried out in a small device (2–3 kW) and without the use of efficient heat regeneration. For partial oxidation/water shifting, it was determined that the specific energy consumption in the plasma reforming processes is 16 MJ/kg H2 with high conversion efficiencies. Larger plasmatrons, better reactor thermal insulation, efficient heat regeneration and improved plasma catalysis could also play a major role in specific energy consumption reduction and increasing the methane conversion. A system has been demonstrated for hydrogen production with low CO content (?1.5%) with power densities of ?30 kW (H2 HHV)/l of reactor, or ?10 m3/h H2 per liter of reactor. Power density should further increase with increased power and improved design.

L Bromberg; D.R Cohn; A Rabinovich; N Alexeev

1999-01-01T23:59:59.000Z

152

Chapter 14 - Coal bed methane  

Science Journals Connector (OSTI)

Publisher Summary Methane adsorbed to the surface of coal is a very old issue with some new commercial ramifications. This explosive gas has made underground coal mines dangerous both from the risk of explosion and the possibility of an oxygen-poor atmosphere that wouldn't support life. The miner's main concern with coal bed methane (CBM) has been how to get rid of it. Techniques to deal with CBM in mines have ranged from the classic canary in a cage to detect an oxygen-poor atmosphere to huge ventilation fans to force the replacement of a methane-rich environment with outside air, to drilling CBM wells in front of the coal face to try to degas the coal prior to exposing the mine to the CBM. All these techniques have met with some amount of success. None of the techniques to prevent CBM from fouling the air in an underground mine has been totally successful. With the CBM's unique method of gas storage, the preponderance of the gas is available only to very low coalface pressures. The coalface pressure is set by a combination of flowing wellhead pressure and the hydrostatic head exerted by standing liquid within the well bore. Effective compression strategies can lower the wellhead pressure to very low values. Effective deliquification techniques can reduce or remove the backpressure caused by accumulated liquid. CBM's economic impact is briefly explained in this chapter.

James F. Lea; Henry V. Nickens; Mike R. Wells

2008-01-01T23:59:59.000Z

153

NETL: Methane Hydrates - DOE/NETL Projects  

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

Characterization and Decomposition Kinetic Studies of Methane Hydrate in Host Sediments under Subsurface Mimic Conditions Last Reviewed 02/17/2010 Characterization and Decomposition Kinetic Studies of Methane Hydrate in Host Sediments under Subsurface Mimic Conditions Last Reviewed 02/17/2010 EST-380-NEDA Goal The purpose of this study is to establish sediment lithology and quantification of methane in hydrates hosted in fine-grained sediments from the Gulf of Mexico (GoM), a marine site of methane hydrate occurrence. The results will help establish a correlation between laboratory data and hydrate accumulation field data on dispersed hydrates in the natural environment. Performer Brookhaven National Laboratory (BNL), Upton, New York 11973 Background Gas hydrates are located in permafrost and marine environments and show potential as a vast methane source worldwide. However, methane is about 17 times more potent a greenhouse gas than CO2 and the inherent instability of

154

Methane Hydrates R&D Program  

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

Methane Hydrates R&D Program Methane Hydrates R&D Program Gas hydrates are a naturally-occurring combination of methane gas and water that form under specific conditions of low temperature and high pressure. Once thought to be rare in nature, gas hydrates are now known to occur in great abundance in association with arctic permafrost and in the shallow sediments of the deep-water continental shelves. The most recent estimates of gas hydrate abundance suggest that they contain

155

,"Federal Offshore California Coalbed Methane Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore California Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013...

156

Miscellaneous States Coalbed Methane Proved Reserves Revision...  

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

Revision Decreases (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

157

,"Colorado Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

158

,"Arkansas Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

159

,"Wyoming Coalbed Methane Proved Reserves, Reserves Changes,...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

160

,"Miscellaneous States Coalbed Methane Proved Reserves (Billion...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

Note: This page contains sample records for the topic "methane digester property" 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

A guide to coalbed methane operations  

SciTech Connect

A guide to coalbed methane production is presented. The guide provides practical information on siting, drilling, completing, and producing coalbed methane wells. Information is presented for experienced coalbed methane producers and coalbed methane operations. The information will assist in making informed decisions about producing this resource. The information is presented in nine chapters on selecting and preparing of field site, drilling and casing the wellbore, wireline logging, completing the well, fracturing coal seams, selecting production equipment and facilities, operating wells and production equipment, treating and disposing of produced water, and testing the well.

Hollub, V.A.; Schafer, P.S.

1992-01-01T23:59:59.000Z

162

,"Montana Coalbed Methane Proved Reserves, Reserves Changes,...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Montana Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

163

,"Oklahoma Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

164

,"Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

165

,"Virginia Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Virginia Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

166

CO2 Sequestration Enhances Coalbed Methane Production.  

E-Print Network (OSTI)

??Since 1980s, petroleum engineers and geologists have conducted researches on Enhanced Coalbed Methane Recovery (ECBM). During this period, many methods are introduced to enhance the… (more)

Pang, Yu

2013-01-01T23:59:59.000Z

167

,"Pennsylvania Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

168

,"Miscellaneous Coalbed Methane Proved Reserves, Reserves Changes...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

169

,"Alabama Coalbed Methane Proved Reserves, Reserves Changes,...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Alabama Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

170

,"California - Coastal Region Coalbed Methane Proved Reserves...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

171

ANALYSIS OF METHANE PRODUCING COMMUNITIES WITHIN UNDERGROUND COAL BEDS  

E-Print Network (OSTI)

ANALYSIS OF METHANE PRODUCING COMMUNITIES WITHIN UNDERGROUND COAL BEDS by Elliott Paul Barnhart ..................................................................................14 Ability of the Consortium to Produce Methane from Coal and Metabolites ................16.............................................................................................21 Coal and Methane Production

Maxwell, Bruce D.

172

Model calibration and validation for OFMSW and sewage sludge co-digestion reactors  

SciTech Connect

Highlights: > Disintegration is the limiting step of the anaerobic co-digestion process. > Disintegration kinetic constant does not depend on the waste particle size. > Disintegration kinetic constant depends only on the waste nature and composition. > The model calibration can be performed on organic waste of any particle size. - Abstract: A mathematical model has recently been proposed by the authors to simulate the biochemical processes that prevail in a co-digestion reactor fed with sewage sludge and the organic fraction of municipal solid waste. This model is based on the Anaerobic Digestion Model no. 1 of the International Water Association, which has been extended to include the co-digestion processes, using surface-based kinetics to model the organic waste disintegration and conversion to carbohydrates, proteins and lipids. When organic waste solids are present in the reactor influent, the disintegration process is the rate-limiting step of the overall co-digestion process. The main advantage of the proposed modeling approach is that the kinetic constant of such a process does not depend on the waste particle size distribution (PSD) and rather depends only on the nature and composition of the waste particles. The model calibration aimed to assess the kinetic constant of the disintegration process can therefore be conducted using organic waste samples of any PSD, and the resulting value will be suitable for all the organic wastes of the same nature as the investigated samples, independently of their PSD. This assumption was proven in this study by biomethane potential experiments that were conducted on organic waste samples with different particle sizes. The results of these experiments were used to calibrate and validate the mathematical model, resulting in a good agreement between the simulated and observed data for any investigated particle size of the solid waste. This study confirms the strength of the proposed model and calibration procedure, which can thus be used to assess the treatment efficiency and predict the methane production of full-scale digesters.

Esposito, G., E-mail: giovanni.esposito@unicas.it [Department of Mechanics, Structures and Environmental Engineering, University of Cassino, via Di Biasio 43, 03043 Cassino (Italy); Frunzo, L., E-mail: luigi.frunzo@unina.it [Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, via Cintia, Monte S. Angelo, I-80126 Naples (Italy); Panico, A., E-mail: anpanico@unina.it [Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples (Italy); Pirozzi, F., E-mail: francesco.pirozzi@unina.it [Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples (Italy)

2011-12-15T23:59:59.000Z

173

Seismic-Scale Rock Physics of Methane Hydrate  

SciTech Connect

We quantify natural methane hydrate reservoirs by generating synthetic seismic traces and comparing them to real seismic data: if the synthetic matches the observed data, then the reservoir properties and conditions used in synthetic modeling might be the same as the actual, in-situ reservoir conditions. This approach is model-based: it uses rock physics equations that link the porosity and mineralogy of the host sediment, pressure, and hydrate saturation, and the resulting elastic-wave velocity and density. One result of such seismic forward modeling is a catalogue of seismic reflections of methane hydrate which can serve as a field guide to hydrate identification from real seismic data. We verify this approach using field data from known hydrate deposits.

Amos Nur

2009-01-08T23:59:59.000Z

174

Scientists detect methane levels three times larger than expected...  

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

methane that actually preceded recent concerns about potential emissions from fracking," Dubey said. Scientists detect methane levels three times larger than expected over...

175

Three-dimensional model synthesis of the global methane cycle  

E-Print Network (OSTI)

39, Ehhalt, D. H. , The atmo•heric cycle of methane, Tellugworld-wide increase in t•heric methane, 1978-1987, Science,

1991-01-01T23:59:59.000Z

176

Texas--State Offshore Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Texas State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and...

177

Louisiana--State Offshore Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 LA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and...

178

Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Federal Offshore Texas Coalbed Methane Proved Reserves, Reserves Changes, and Production...

179

California--State Offshore Coalbed Methane Proved Reserves (Billion...  

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

Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 CA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and Production...

180

Texas--RRC District 9 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 9 Coalbed Methane Proved Reserves,...

Note: This page contains sample records for the topic "methane digester property" 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

North Dakota Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 North Dakota Coalbed Methane Proved...

182

Texas--RRC District 6 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 6 Coalbed Methane Proved Reserves,...

183

California (with State off) Coalbed Methane Proved Reserves ...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 California Coalbed Methane Proved Reserves,...

184

Alaska (with Total Offshore) Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Alaska Coalbed Methane Proved Reserves, Reserves...

185

Texas--RRC District 1 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 1 Coalbed Methane Proved Reserves,...

186

Alaska (with Total Offshore) Coalbed Methane Proved Reserves...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Alaska Coalbed Methane Proved Reserves,...

187

Michigan Coalbed Methane Proved Reserves (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Michigan Coalbed Methane Proved Reserves,...

188

Other States Natural Gas Coalbed Methane, Reserves Based Production...  

Gasoline and Diesel Fuel Update (EIA)

Other States Natural Gas Coalbed Methane, Reserves Based Production (Billion Cubic Feet) Other States Natural Gas Coalbed Methane, Reserves Based Production (Billion Cubic Feet)...

189

California (with State off) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production California Coalbed Methane Proved Reserves, Reserves...

190

Texas (with State Offshore) Coalbed Methane Proved Reserves ...  

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

Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0...

191

Prediction of coalbed methane reservoir performance with type curves.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoirs are dual-porosity systems that are characterized by… (more)

Bhavsar, Amol Bhaskar.

2005-01-01T23:59:59.000Z

192

Louisiana--South Onshore Coalbed Methane Proved Reserves (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 LA, South Onshore Coalbed Methane Proved...

193

New York Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production New York Coalbed Methane Proved Reserves, Reserves...

194

Texas--RRC District 5 Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 5 Coalbed Methane Proved...

195

Texas--RRC District 1 Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 1 Coalbed Methane Proved...

196

North Dakota Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production North Dakota Coalbed Methane Proved Reserves,...

197

Mississippi (with State off) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Mississippi Coalbed Methane Proved Reserves, Reserves...

198

The Optimization of Well Spacing in a Coalbed Methane Reservoir.  

E-Print Network (OSTI)

??Numerical reservoir simulation has been used to describe mechanism of methane gas desorption process, diffusion process, and fluid flow in a coalbed methane reservoir. The… (more)

Sinurat, Pahala Dominicus

2012-01-01T23:59:59.000Z

199

Louisiana--South Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production LA, South Onshore Coalbed Methane Proved Reserves,...

200

Lower 48 Federal Offshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production Federal Offshore U.S. Coalbed Methane Proved...

Note: This page contains sample records for the topic "methane digester property" 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

Mississippi (with State off) Coalbed Methane Proved Reserves...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 Mississippi Coalbed Methane Proved Reserves,...

202

Texas--RRC District 8 Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8 Coalbed Methane Proved Reserves,...

203

Diffusion Characterization of Coal for Enhanced Coalbed Methane Production.  

E-Print Network (OSTI)

??This thesis explores the concept of displacement of sorbed methane and enhancement of methane recovery by injection of CO2 into coal, while sequestering CO2. The… (more)

Chhajed, Pawan

2011-01-01T23:59:59.000Z

204

Development of gas production type curves for coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists on methane production from the coal seams. The unique coal characteristic results in a dual-porosity system.… (more)

Garcia Arenas, Anangela.

2004-01-01T23:59:59.000Z

205

Four Corners methane hotspot points to coal-related sources  

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

methane hotspot points to coal-related sources Methane is very efficient at trapping heat in the atmosphere and, like carbon dioxide, it contributes to global warming. October...

206

Plasma catalytic reforming of methane  

SciTech Connect

Thermal plasma technology can be efficiently used in the production of hydrogen and hydrogen-rich gases from methane and a variety of fuels. This paper describes progress in plasma reforming experiments and calculations of high temperature conversion of methane using heterogeneous processes. The thermal plasma is a highly energetic state of matter that is characterized by extremely high temperatures (several thousand degrees Celsius) and high degree of dissociation and substantial degree of ionization. The high temperatures accelerate the reactions involved in the reforming process. Hydrogen-rich gas (50% H{sub 2}, 17% CO and 33% N{sub 2}, for partial oxidation/water shifting) can be efficiently made in compact plasma reformers. Experiments have been carried out in a small device (2--3 kW) and without the use of efficient heat regeneration. For partial oxidation/water shifting, it was determined that the specific energy consumption in the plasma reforming processes is 16 MJ/kg H{sub 2} with high conversion efficiencies. Larger plasmatrons, better reactor thermal insulation, efficient heat regeneration and improved plasma catalysis could also play a major role in specific energy consumption reduction and increasing the methane conversion. A system has been demonstrated for hydrogen production with low CO content ({approximately} 1.5%) with power densities of {approximately} 30 kW (H{sub 2} HHV)/liter of reactor, or {approximately} 10 m{sup 3}/hr H{sub 2} per liter of reactor. Power density should further increase with increased power and improved design.

Bromberg, L.; Cohn, D.R.; Rabinovich, A. [Massachusetts Inst. of Technology, Cambridge, MA (United States). Plasma Science and Fusion Center; Alexeev, N. [Russian Academy of Sciences, Moscow (Russian Federation). Baikov Inst. of Metallurgy

1998-08-01T23:59:59.000Z

207

The 1991 coalbed methane symposium proceedings  

SciTech Connect

The proceedings of the 1991 coalbed methane symposium are presented. The proceedings contains 50 papers on environmental aspects of recovering methane from coal seams, reservoir characterization and testing mine safety and productivity, coalbed stimulation, geology and resource assessment, well completion and production technologies, reservoir modeling and case histories, and resources and technology.

Not Available

1991-01-01T23:59:59.000Z

208

Technical Note Methane gas migration through geomembranes  

E-Print Network (OSTI)

and Fick's law. This chart can be used by landfill designers to evaluate the methane gas transmission rate for a selected geomembrane type and thickness and expected methane gas pressure in the landfill. KEYWORDS landfill usually consists, from bottom to top, of: graded landfill surface; a gas-venting layer; a low

209

Modeling of Oceanic Gas Hydrate Instability and Methane Release in Response to Climate Change  

SciTech Connect

Paleooceanographic evidence has been used to postulate that methane from oceanic hydrates may have had a significant role in regulating global climate, implicating global oceanic deposits of methane gas hydrate as the main culprit in instances of rapid climate change that have occurred in the past. However, the behavior of contemporary oceanic methane hydrate deposits subjected to rapid temperature changes, like those predicted under future climate change scenarios, is poorly understood. To determine the fate of the carbon stored in these hydrates, we performed simulations of oceanic gas hydrate accumulations subjected to temperature changes at the seafloor and assessed the potential for methane release into the ocean. Our modeling analysis considered the properties of benthic sediments, the saturation and distribution of the hydrates, the ocean depth, the initial seafloor temperature, and for the first time, estimated the effect of benthic biogeochemical activity. The results show that shallow deposits--such as those found in arctic regions or in the Gulf of Mexico--can undergo rapid dissociation and produce significant methane fluxes of 2 to 13 mol/yr/m{sup 2} over a period of decades, and release up to 1,100 mol of methane per m{sup 2} of seafloor in a century. These fluxes may exceed the ability of the seafloor environment (via anaerobic oxidation of methane) to consume the released methane or sequester the carbon. These results will provide a source term to regional or global climate models in order to assess the coupling of gas hydrate deposits to changes in the global climate.

Reagan, Matthew; Reagan, Matthew T.; Moridis, George J.

2008-04-15T23:59:59.000Z

210

Arctic Methane, Hydrates, and Global Climate  

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

Arctic Methane, Hydrates, and Global Climate Arctic Methane, Hydrates, and Global Climate Speaker(s): Matthew T. Reagan Date: March 17, 2010 - 12:00pm Location: 90-3122 Paleooceanographic evidence has been used to postulate that methane may have had a significant role in regulating past climate. However, the behavior of contemporary permafrost deposits and oceanic methane hydrate deposits subjected to rapid temperature changes, like those now occurring in the arctic and those predicted under future climate change scenarios, has only recently been investigated. A recent expedition to the west coast of Spitsbergen discovered substantial methane gas plumes exiting the seafloor at depths that correspond to the upper limit of the receding gas hydrate stability zone. It has been suggested that these plumes may be the

211

NETL: Methane Hydrates - DOE/NETL Projects  

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

Methane Recovery from Hydrate-bearing Sediments Last Reviewed 11/30/2011 Methane Recovery from Hydrate-bearing Sediments Last Reviewed 11/30/2011 DE-FC26-06NT42963 Goal The goal of this project is to develop observational and experimental data that can provide a better understanding of the basic mechanisms at work in a methane hydrate reservoir that is under production. To this end, a thorough physical understanding of underlying phenomena associated with methane hydrate production will be acquired through unique, multi-scale experiments and associated analyses. In addition, one or more mathematical models that account for the observed phenomena and provide insights that may help to optimize methane hydrate production methods will be developed. Performers Georgia Tech Research Corporation, Atlanta, Georgia 30332 Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee 37831

212

The effects of blending hydrogen with methane on engine operation, efficiency, and emissions  

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

-01-0474 -01-0474 The effects of blending hydrogen with methane on engine operation, efficiency, and emissions Thomas Wallner and Henry K. Ng Argonne National Laboratory Robert W. Peters University of Alabama at Birmingham Copyright Ā© 2007 SAE International ABSTRACT Hydrogen is considered one of the most promising future energy carriers and transportation fuels. Because of the lack of a hydrogen infrastructure and refueling stations, widespread introduction of vehicles powered by pure hydrogen is not likely in the near future. Blending hydrogen with methane could be one solution. Such blends take advantage of the unique combustion properties of hydrogen and, at the same time, reduce the demand for pure hydrogen. In this paper, the authors analyze the combustion properties of hydrogen/methane

213

OXIDATIVE COUPLING OF METHANE USING INORGANIC MEMBRANE REACTORS  

SciTech Connect

The objective of this research is to study the oxidative coupling of methane in catalytic inorganic membrane reactors. A specific target is to achieve conversion of methane to C{sub 2} hydrocarbons at very high selectivity and higher yields than in conventional non-porous, co-feed, fixed bed reactors by controlling the oxygen supply through the membrane. A membrane reactor has the advantage of precisely controlling the rate of delivery of oxygen to the catalyst. This facility permits balancing the rate of oxidation and reduction of the catalyst. In addition, membrane reactors minimize the concentration of gas phase oxygen thus reducing non selective gas phase reactions, which are believed to be a main route for the formation of CO{sub x} products. Such gas phase reactions are a cause of decreased selectivity in the oxidative coupling of methane in conventional flow reactors. Membrane reactors could also produce higher product yields by providing better distribution of the reactant gases over the catalyst than the conventional plug flow reactors. Membrane reactor technology also offers the potential for modifying the membranes both to improve catalytic properties as well as to regulate the rate of the permeation/diffusion of reactants through the membrane to minimize by-product generation. Other benefits also exist with membrane reactors, such as the mitigation of thermal hot-spots for highly exothermic reactions such as the oxidative coupling of methane. The application of catalytically active inorganic membranes has potential for drastically increasing the yield of reactions which are currently limited by either thermodynamic equilibria, product inhibition, or kinetic selectivity.

Dr. Y.H. Ma; Dr. W.R. Moser; Dr. A.G. Dixon; Dr. A.M. Ramachandra; Dr. Y. Lu; C. Binkerd

1998-04-01T23:59:59.000Z

214

Nitrogen availability and indirect measurements of greenhouse gas emissions from aerobic and anaerobic biowaste digestates applied to agricultural soils  

SciTech Connect

Highlights: • Nitrogen release in digestate-amended soil depends on the digestate type. • Overall N release is modulated by digestate mineral and mineralisable N contents. • Microbial immobilisation does not influence overall release of digestate N in soil. • Digestate physical properties and soil type interact to affect overall N recovery. • High labile C inputs in digestate may promote denitrification in fine-textured soil. - Abstract: Recycling biowaste digestates on agricultural land diverts biodegradable waste from landfill disposal and represents a sustainable source of nutrients and organic matter (OM) to improve soil for crop production. However, the dynamics of nitrogen (N) release from these organic N sources must be determined to optimise their fertiliser value and management. This laboratory incubation experiment examined the effects of digestate type (aerobic and anaerobic), waste type (industrial, agricultural and municipal solid waste or sewage sludge) and soil type (sandy loam, sandy silt loam and silty clay) on N availability in digestate-amended soils and also quantified the extent and significance of the immobilisation of N within the soil microbial biomass, as a possible regulatory mechanism of N release. The digestate types examined included: dewatered, anaerobically digested biosolids (DMAD); dewatered, anaerobic mesophilic digestate from the organic fraction of municipal solid waste (DMADMSW); liquid, anaerobic co-digestate of food and animal slurry (LcoMAD) and liquid, thermophilic aerobic digestate of food waste (LTAD). Ammonium chloride (NH{sub 4}Cl) was included as a reference treatment for mineral N. After 48 days, the final, maximum net recoveries of mineral N relative to the total N (TN) addition in the different digestates and unamended control treatments were in the decreasing order: LcoMAD, 68%; LTAD, 37%, DMAD, 20%; and DMADMSW, 11%. A transient increase in microbial biomass N (MBN) was observed with LTAD application, indicating greater microbial activity in amended soil and reflecting the lower stability of this OM source, compared to the other, anaerobic digestate types, which showed no consistent effects on MBN compared to the control. Thus, the overall net release of digestate N in different soil types was not regulated by N transfer into the soil microbial biomass, but was determined primarily by digestate properties and the capacity of the soil type to process and turnover digestate N. In contrast to the sandy soil types, where nitrate (NO{sub 3}{sup -}) concentrations increased during incubation, there was an absence of NO{sub 3}{sup -} accumulation in the silty clay soil amended with LTAD and DMADMSW. This provided indirect evidence for denitrification activity and the gaseous loss of N, and the associated increased risk of greenhouse gas emissions under certain conditions of labile C supply and/or digestate physical structure in fine-textured soil types. The significance and influence of the interaction between soil type and digestate stability and physical properties on denitrification processes in digestate-amended soils require urgent investigation to ensure management practices are appropriate to minimise greenhouse gas emissions from land applied biowastes.

Rigby, H.; Smith, S.R., E-mail: s.r.smith@imperial.ac.uk

2013-12-15T23:59:59.000Z

215

Methane Digesters and Biogas Recovery - Masking the Environmental Consequences of Industrial Concentrated Livestock Production  

E-Print Network (OSTI)

Energy Production . C.Benefits and Renewable Energy Production One source ofsource of renewable energy production from such facilities.

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

216

Methane Digesters and Biogas Recovery - Masking the Environmental Consequences of Industrial Concentrated Livestock Production  

E-Print Network (OSTI)

Renewable Energy Production .Benefits and Renewable Energy Production One source ofauspicious source of renewable energy production from such

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

217

Department of Energy Advance Methane Hydrates Science and Technology Projects  

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

Descriptions for Energy Department Methane Hydrates Science and Technology Projects, August 31, 2012

218

New Methane Hydrate Research: Investing in Our Energy Future | Department  

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

Methane Hydrate Research: Investing in Our Energy Future Methane Hydrate Research: Investing in Our Energy Future New Methane Hydrate Research: Investing in Our Energy Future August 31, 2012 - 1:37pm Addthis Methane hydrates are 3D ice-lattice structures with natural gas locked inside. If methane hydrate is either warmed or depressurized, it will release the trapped natural gas. Methane hydrates are 3D ice-lattice structures with natural gas locked inside. If methane hydrate is either warmed or depressurized, it will release the trapped natural gas. Jenny Hakun What Are Methane Hydrates? Methane hydrates are 3D ice-lattice structures with natural gas locked inside. The substance looks remarkably like white ice, but it does not behave like ice. If methane hydrate is either warmed or depressurized, it will release the trapped natural gas.

219

Methane Hydrates and Climate Change | Department of Energy  

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

Hydrates and Climate Change Hydrates and Climate Change Methane Hydrates and Climate Change Methane hydrates store huge volumes of methane formed by the bacterial decay of organic matter or leaked from underlying oil and natural gas deposits. The active formation of methane hydrates in the shallow crust prevents methane, a greenhouse gas, from entering the atmosphere. On the other hand, warming of arctic sediments or ocean waters has the potential to cause methane hydrate to dissociate, releasing methane into the deepwater sediments, the ocean or atmosphere. DOE is conducting research to understand the mechanisms and volumes involved in these little-studied processes. DOE environmental and climate change research projects related to Arctic methane hydrate deposits include: Characterization of Methane Degradation and Methane-Degrading

220

Diffusive Accumulation of Methane Bubbles in Seabed  

E-Print Network (OSTI)

We consider seabed bearing methane bubbles. In the absence of fractures the bubbles are immovably trapped in a porous matrix by surface tension forces; therefore the dominant mechanism of transfer of gas mass becomes the diffusion of gas molecules through the liquid. The adequate description of this process requires accounting "other-than-normal" (non-Fickian) diffusion effects, thermodiffusion and gravity action. We evaluate the diffusive flux of aqueous methane and predict the possibility of existence of bubble mass accumulation zones (which can appear independently from the presence/absence of hydrate stability zone) and effect of non-Fickian drift on the capacity of shallow and deep methane-hydrate deposits.

Goldobin, D S; Levesley, J; Lovell, M A; Rochelle, C A; Jackson, P; Haywood, A; Hunter, S; Rees, J

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

Supported nickel catalysts for low temperature methane steam reforming: comparison between metal additives and support modification  

Science Journals Connector (OSTI)

The effect of Ag (1 wt%) and Au (1 wt%) on the catalytic properties of Ni/Al2O3 (7 wt% Ni) for methane steam reforming (MSR) was studied in parallel with...2 (6 wt%) and La2O3 (6 wt%) addition. The addition of 1 ...

Monica Dan; Maria Mihet; Alexandru R. Biris…

2012-02-01T23:59:59.000Z

222

Statistical Digest No. 70 Fishery Statistics of  

E-Print Network (OSTI)

. These statistics include data on the volume and value of landed catches, employment, quantity of gear operatedStatistical Digest No. 70 Statistics of the United States 1976 Washington National Marine Fisheries Service #12;#12;Statistical Digest No. 70 Fishery Statistics of the United States

223

Chemical Reactor Analysis and Optimal Digestion  

E-Print Network (OSTI)

J 310 Chemical Reactor Analysis and Optimal Digestion An optimal digestion theory can be readily derived from basic principles o f chemical reactor analysis and design Deborah L. Penry and Peter for formulating and solving optimization problems (Bellman 1957), the entire process is optimized only

Jumars, Pete

224

T-728: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let...  

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

8: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let Remote Users Conduct Bypass Attacks T-728: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let Remote Users Conduct...

225

E-Print Network 3.0 - atmospheric methane extracted Sample Search...  

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

search results for: atmospheric methane extracted Page: << < 1 2 3 4 5 > >> 1 Oceanic sediment methane, including methane clathrate hydrates (hydrates), is the Earth's largest...

226

Hydrogen Safety Issues Compared to Safety Issues with Methane and Propane  

E-Print Network (OSTI)

Issues with Methane and Propane Michael A. Green LawrenceSAFETY ISSUES WITH METHANE AND PROPANE M. A. Green Lawrencehydrogen. Methane and propane are commonly used by ordinary

Green, Michael A.

2005-01-01T23:59:59.000Z

227

Development of water production type curves for horizontal wells in coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from the coal seams. The key parameters for the evaluation of coalbed methane… (more)

Burka Narayana, Praveen Kumar.

2007-01-01T23:59:59.000Z

228

Tool to predict the production performance of vertical wells in a coalbed methane reservoir.  

E-Print Network (OSTI)

??Coalbed Methane (CBM) is an unconventional gas resource that consists of methane production from coal seams. Coalbed Methane gas production is controlled be interactions of… (more)

Enoh, Michael E.

2007-01-01T23:59:59.000Z

229

Methane Hydrate Program Annual Report to Congress  

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

FY 2010 FY 2010 Methane Hydrate Program Annual Report to Congress September 2011 U.S. Department of ENERGY United States Department of Energy Washington, DC 20585 Department of Energy | September 2011 FY 2010 Methane Hydrate Program Annual Report to Congress | Page 2 Message from the Secretary Section 968 of the Energy Policy Act of 2005 requires the Department of Energy to submit to Congress an annual report on the results of methane hydrate research. I am pleased to submit the enclosed report entitled, U.S. Department of Energy FY 2010 Methane Hydrate Program Report to Congress. The report was prepared by the Department of Energy's Office of Fossil Energy and summarizes the progress being made in this important area of

230

NETL: Methane Hydrates - DOE/NETL Projects  

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

Laboratory Studies in Support of Characterization of Recoverable Resources from Methane Hydrate Deposits Last Reviewed 5/10/2012 Laboratory Studies in Support of Characterization of Recoverable Resources from Methane Hydrate Deposits Last Reviewed 5/10/2012 ESD05-048 Goal The project is bringing new laboratory measurements and evaluation techniques to bear on the difficult problems of characterization and gas recovery from methane hydrate deposits. Performer Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Background LBNL is performing laboratory tests to provide data to support the characterization and development of methane hydrate deposits. Major areas of research underway include hydrologic measurements, combined geomechanical/geophysical measurements, and synthetic hydrate formation studies. Hydrologic Measurements Relatively little research has been done to experimentally determine

231

NETL: Methane Hydrates - DOE/NETL Projects  

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

Collection and Microbiological Analysis of Gas Hydrate Cores Collection and Microbiological Analysis of Gas Hydrate Cores FWP-4340-60 and FWP-42C1-01 Goal Determine the presence and activity of methanogens in methane hydrate-bearing sediments. Background The project was set up to determine a fundamental modeling parameter - the amount of methane generated in deep sediments by methanogenic microorganisms. This would allow methane distribution models of gas hydrate reservoirs to accurately reflect an unknown volume and the distribution of biogenic methane within in a reservoir. The personnel at INEL have experience in similar biologic research and are considered to be experts by their global peers. Performer Idaho National Engineering and Environmental Laboratory (INEEL) - sample collection and analysis Location

232

methane_hydrates | netl.doe.gov  

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

hydrate and its potential as a fuel source, please read the 2011 Methane Hydrates Primer. Information on other elements of the program can be found under the links below. Fire...

233

Hydraulic fracturing accelerates coalbed methane recovery  

SciTech Connect

Methane production from deep coal seams that never will be mined requires hydraulic fracturing for faster, optimal recovery. Since this can be a complex process, proper formation evaluation beforehand is essential, according to this paper.

Holditch, S.A. (Texas A and M Univ. (US)); Ely, J.W.; Semmelbeck, M.E.; Carter, R.H. (S.A. Holditch and Associates (US)); Hinkel, J.J.; Jeffrey, R.G. Jr. (Dowell Schlumberger (US))

1990-11-01T23:59:59.000Z

234

Mikrobiologie und Ökophysiologie des Methan-Kreislaufs  

Science Journals Connector (OSTI)

Methan ist ein Spurengas in der Atmosphäre (1,8 ppmv), dessen Konzentration aufgrund von anthropogenen Aktivitäten jährlich mit etwa 0,5–1% zunimmt. Es wird zusammen mit CO2, N2O (Lachgas), O3 (Ozon) und Fluorchl...

Professor em. Dr. sc. agr. habil. Johannes C. G. Ottow

2011-01-01T23:59:59.000Z

235

Virginia Coalbed Methane Proved Reserves Extensions (Billion...  

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

Extensions (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

236

Oklahoma Coalbed Methane Proved Reserves Extensions (Billion...  

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

Extensions (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

237

Montana Coalbed Methane Production (Billion Cubic Feet)  

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

Production (Billion Cubic Feet) Montana Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 12 12 13...

238

Virginia Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Virginia Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 56 81...

239

Pennsylvania Coalbed Methane Proved Reserves Revision Decreases...  

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

Decreases (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

240

Colorado Coalbed Methane Production (Billion Cubic Feet)  

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

Production (Billion Cubic Feet) Colorado Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 12...

Note: This page contains sample records for the topic "methane digester property" 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

Alabama Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Alabama Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 23...

242

Wyoming Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Wyoming Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 133 278...

243

Virginia Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

244

Arkansas Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

245

Kansas Coalbed Methane Production (Billion Cubic Feet)  

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

Production (Billion Cubic Feet) Kansas Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 17 25 38...

246

Colorado Coalbed Methane Proved Reserves Revision Increases ...  

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

Increases (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

247

Oklahoma Coalbed Methane Production (Billion Cubic Feet)  

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

Production (Billion Cubic Feet) Oklahoma Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 58 68...

248

Arkansas Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Arkansas Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2 3 3 3...

249

Pennsylvania Coalbed Methane Proved Reserves Revision Increases...  

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

Increases (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

250

Virginia Coalbed Methane Proved Reserves Revision Decreases ...  

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

Decreases (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

251

Colorado Coalbed Methane Proved Reserves Extensions (Billion...  

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

Extensions (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

252

Oklahoma Coalbed Methane Proved Reserves Revision Decreases ...  

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

Decreases (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

253

Montana Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Montana Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

254

Wyoming Coalbed Methane Proved Reserves Acquisitions (Billion...  

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

Acquisitions (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

255

Utah Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Utah Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 74 83 103...

256

Wyoming Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

257

Arkansas Coalbed Methane Proved Reserves Revision Increases ...  

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

Increases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

258

Oklahoma Coalbed Methane Proved Reserves Revision Increases ...  

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

Increases (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

259

Miscellaneous States Coalbed Methane Proved Reserves Adjustments...  

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

Adjustments (Billion Cubic Feet) Miscellaneous States Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

260

Pennsylvania Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Pennsylvania Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3 5...

Note: This page contains sample records for the topic "methane digester property" 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

Oklahoma Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

262

Pennsylvania Coalbed Methane Proved Reserves Extensions (Billion...  

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

Extensions (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

263

Colorado Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

264

Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion...  

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

Acquisitions (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

265

Colorado Coalbed Methane Proved Reserves Acquisitions (Billion...  

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

Acquisitions (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

266

Oklahoma Coalbed Methane Proved Reserves Acquisitions (Billion...  

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

Acquisitions (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

267

Colorado Coalbed Methane Proved Reserves Revision Decreases ...  

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

Decreases (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

268

Arkansas Coalbed Methane Proved Reserves Revision Decreases ...  

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

Decreases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

269

Virginia Coalbed Methane Proved Reserves Revision Increases ...  

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

Increases (Billion Cubic Feet) Virginia Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

270

Pennsylvania Coalbed Methane Proved Reserves Adjustments (Billion...  

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

Adjustments (Billion Cubic Feet) Pennsylvania Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

271

Processes for Methane Production from Gas Hydrates  

Science Journals Connector (OSTI)

The main cost here is only that of the pipeline used to transport the gas to the production platform. For subsea systems that do not ... group of wells. Transporting methane from the production site to the shore ...

2010-01-01T23:59:59.000Z

272

Methane Hydrates R&D Program  

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

abundance suggest that they contain perhaps more organic carbon that all the world's oil, gas, and coal combined. The primary mission of the Methane Hydrates R&D Program is to...

273

Functionally gradient material for membrane reactors to convert methane gas into value-added products  

DOE Patents (OSTI)

A functionally gradient material for a membrane reactor for converting methane gas into value-added-products includes an outer tube of perovskite, which contacts air; an inner tube which contacts methane gas, of zirconium oxide, and a bonding layer between the perovskite and zirconium oxide layers. The bonding layer has one or more layers of a mixture of perovskite and zirconium oxide, with the layers transitioning from an excess of perovskite to an excess of zirconium oxide. The transition layers match thermal expansion coefficients and other physical properties between the two different materials. 7 figs.

Balachandran, U.; Dusek, J.T.; Kleefisch, M.S.; Kobylinski, T.P.

1996-11-12T23:59:59.000Z

274

Functionally gradient material for membrane reactors to convert methane gas into value-added products  

DOE Patents (OSTI)

A functionally gradient material for a membrane reactor for converting methane gas into value-added-products includes an outer tube of perovskite, which contacts air; an inner tube which contacts methane gas, of zirconium oxide, and a bonding layer between the perovskite and zirconium oxide layers. The bonding layer has one or more layers of a mixture of perovskite and zirconium oxide, with the layers transitioning from an excess of perovskite to an excess of zirconium oxide. The transition layers match thermal expansion coefficients and other physical properties between the two different materials.

Balachandran, Uthamalingam (Hinsdale, IL); Dusek, Joseph T. (Lombard, IL); Kleefisch, Mark S. (Napersville, IL); Kobylinski, Thadeus P. (Lisle, IL)

1996-01-01T23:59:59.000Z

275

E-Print Network 3.0 - anaerobic sludge digestion Sample Search...  

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

digestion Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic sludge digestion...

276

E-Print Network 3.0 - anaerobic sludge digester Sample Search...  

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

digester Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic sludge digester...

277

Reduced gas pressure operation of sludge digesters: Expanded studies. Final report  

SciTech Connect

Previous investigations strongly suggested that the municipal anaerobic sludge digestion process could be enhanced by reactor operation with subatmospheric headspace pressures. Enhanced solids destruction and methane production along with increased process stability were observed in these earlier studies. However, due to the small scale of the anaerobic reactors used ( {approx}1.5 L), definitive steady-state measurements could not be obtained. These expanded studies were undertaken to verify and define the magnitude of the benefits that might be obtained with vacuum operation of sludge digesters. Four reactors ({approx}15.0 L) were fed municipal sludge at three different organic loading rates while being maintained with a 15-day solids retention time. One reactor had a constant headspace pressure of 1.02 atm; a second was maintained at 0.75 atm; and the remaining two reactors were operated for the majority of the day at 1.02 atm, and for part of the day with a 0.75 atm headspace pressure. Additional small-scale, batch experiments were performed to help identify controlling digestion mechanisms. The results of these expanded studies indicate that vacuum operation did not yield significant advantages over the organic loading range investigated (0.088 to 0.352 lb VSS/ft{sup 3}{center_dot}d).

Not Available

1993-09-01T23:59:59.000Z

278

The different adsorption mechanism of methane molecule onto a boron nitride and a graphene flakes  

SciTech Connect

Graphene and single layer hexagonal boron-nitride are two newly discovered 2D materials with wonderful physical properties. Using density functional theory, we study the adsorption mechanism of a methane molecule over a hexagonal flake of single layer hexagonal boron-nitride (h-BN) and compare the results with those of graphene. We found that independent of the used functional in our ab-initio calculations, the adsorption energy in the h-BN flake is larger than that for graphene. Despite of the adsorption energy profile of methane over a graphene flake, we show that there is a long range behavior beyond minimum energy in the adsorption energy of methane over h-BN flake. This result reveals the higher sensitivity of h-BN sheet to the adsorption of a typical closed shell molecule with respect to graphene. The latter gives insight in the recent experiments of graphene over hexagonal boron nitride.

Seyed-Talebi, Seyedeh Mozhgan [Shahid Chamran University, Golestan boulevard, Ahvaz, Khouzestan (Iran, Islamic Republic of); Neek-Amal, M., E-mail: neekamal@srttu.edu [Shahid Rajaee Teacher Training University, Lavizan, Tehran (Iran, Islamic Republic of)

2014-10-21T23:59:59.000Z

279

Capture and Use of Coal Mine Ventilation-Air Methane  

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

Capture and use of Coal Mine Capture and use of Coal Mine Ventilation - air Methane Background Methane emissions from coal mines represent about 10 percent of the U.S. anthropogenic methane released to the atmosphere. Methane-the second most important non-water greenhouse gas-is 21 times as powerful as carbon dioxide (CO 2 ) in its global warming potential. Ventilation-air methane (VAM)-the exhaust air from underground coal mines-is the largest source of coal mine methane, accounting for about half of the methane emitted from coal mines in the United States. Unfortunately, because of the low methane concentration (0.3-1.5 percent) in ventilation air, its beneficial use is difficult. However, oxidizing the methane to CO 2 and water reduces its global warming potential by 87 percent. A thermal

280

Greenhouse gases emissions accounting for typical sewage sludge digestion with energy utilization and residue land application in China  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer GHGs emissions from sludge digestion + residue land use in China were calculated. Black-Right-Pointing-Pointer The AD unit contributes more than 97% of total biogenic GHGs emissions. Black-Right-Pointing-Pointer AD with methane recovery is attractive for sludge GHGs emissions reduction. - Abstract: About 20 million tonnes of sludge (with 80% moisture content) is discharged by the sewage treatment plants per year in China, which, if not treated properly, can be a significant source of greenhouse gases (GHGs) emissions. Anaerobic digestion is a conventional sewage sludge treatment method and will continue to be one of the main technologies in the following years. This research has taken into consideration GHGs emissions from typical processes of sludge thickening + anaerobic digestion + dewatering + residue land application in China. Fossil CO{sub 2}, biogenic CO{sub 2}, CH{sub 4,} and avoided CO{sub 2} as the main objects is discussed respectively. The results show that the total CO{sub 2}-eq is about 1133 kg/t DM (including the biogenic CO{sub 2}), while the net CO{sub 2}-eq is about 372 kg/t DM (excluding the biogenic CO{sub 2}). An anaerobic digestion unit as the main GHGs emission source occupies more than 91% CO{sub 2}-eq of the whole process. The use of biogas is important for achieving carbon dioxide emission reductions, which could reach about 24% of the total CO{sub 2}-eq reduction.

Niu Dongjie, E-mail: niudongjie@tongji.edu.cn [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); UNEP-Tongji Institute of Environment for Sustainable Development, 1239 Siping Road, Shanghai 200092 (China); Huang Hui [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); Dai Xiaohu [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); National Engineering Research Center for Urban Pollution Control, Shanghai 200092 (China); Zhao Youcai [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China)

2013-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

Enteric bacteria in aerobically digested sludge.  

Science Journals Connector (OSTI)

...Research Article Enteric bacteria in aerobically digested sludge. S R Farrah G Bitton Indicator bacteria, Salmonella...aerobic bacteria were determined in samples of undigested sludge and sludge that had been treated by one or two stages of aerobic...

S R Farrah; G Bitton

1984-04-01T23:59:59.000Z

282

BETO Ranks High in Biofuels Digest’s Top 125 in the Advanced Bioeconomy  

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

Biofuels Digest recently released its “Top 125 in the Advanced Bioeconomy,” ranking Bioenergy Technologies Office (BETO) Director Dr. Jonathan Male , Deputy Director Dr. Valerie Reed, Technology...

283

Methane Power Inc | Open Energy Information  

Open Energy Info (EERE)

Methane Power Inc Methane Power Inc Jump to: navigation, search Logo: Methane Power Inc. Name Methane Power Inc. Address 121 Edinburgh South Drive Place Cary, NC Zip 27511 Sector Renewable Energy Product Methane Power is a renewable energy project developer that focuses on landfill gas-to-energy projects. Currently, they are a supplier of landfill gas generated energy to Duke Energy in North Carolina. Phone number 919-297-7206 Website http://www.methanepower.net Coordinates 35.7395875Ā°, -78.8029226Ā° 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":35.7395875,"lon":-78.8029226,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

284

Carbon deposition in steam reforming and methanation  

SciTech Connect

The purpose of this review is to survey recent studies of carbon deposition on metals used as catalysts in steam reforming and methanation, emphasizing research where significant progress has been made. Where possible, an attempt is made to treat the fundamental nature of carbon formation and deactivation by carbon and the relationships between these two phenomena. Steam reforming and methanation are emphasized in this review because (1) deactivation of catalysts by carbon deposits is a serious concern in both processes, (2) much of the previous research with carbon formation on metals involved one or the other of these two reactions, and (3) there are interesting differences and similarities between these two reactions; for example, methanation is typically carried out at moderate reaction temperatures (200-450/sup 0/C) while steam reforming is typically carried out at significantly higher reaction temperatures (600-900/sup 0/C). Yet the two reactions are very closely related, since methane steam reforming is the reverse of methanation of CO. Moreover, there is evidence that some of the carbons formed in these two different processes are similar in their morphology.

Bartholomew, C.H.

1982-01-01T23:59:59.000Z

285

through the digestive tract of patients with a malabsorption syndrome. In addition, our  

E-Print Network (OSTI)

digestibility car- bon from dietary CHO. Effect of algal fibre supplementation (Eucheuma cottonii) on intestinal of their nutritional properties, this work inves- tigated the possible effects of algal polysac- charides sequence of test meals (800 g of maize starch + casein) sup- plemented either with 40 g of algal fibres

Boyer, Edmond

286

The viscoelastic behaviour of raw and anaerobic digested sludge: strong similarities with soft-glassy materials  

E-Print Network (OSTI)

1 The viscoelastic behaviour of raw and anaerobic digested sludge: strong similarities with soft confronted with a dramatically increasing flow of sewage sludge. To improve treatment efficiency, process reliable flow properties to simulate the process, this work is an attempt to approach sludge rheological

Paris-Sud XI, UniversitƩ de

287

Effect of packing material on methane activation in a dielectric barrier discharge reactor  

SciTech Connect

The conversion of methane is measured in a planar-type dielectric barrier discharge reactor using ?-Al{sub 2}O{sub 3} (sphere), ?-Al{sub 2}O{sub 3} (sphere), and ?-Al{sub 2}O{sub 3} (16–20 mesh). Investigations on the surface properties and shape of the three packing materials clearly indicate that methane activation is considerably affected by the material used. Capacitances inside the discharge gap are estimated from charge–voltage plots, and a comparison of the generated and transferred charges for different packing conditions show that the difference in surface properties between ?- and ?-phase Al{sub 2}O{sub 3} affects the discharge characteristics. Moreover, all packing conditions show different charge characteristics that are related to the electron density. Finally, the packing material's shape affects the local electron temperature, which is strongly related to methane conversion. The combined results indicate that both microscale and macroscale variations in a packing material affect the discharge characteristics, and a packing material should be considered carefully for effective methane activation.

Jo, Sungkwon; Hoon Lee, Dae; Seok Kang, Woo; Song, Young-Hoon [Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 305-343 (Korea, Republic of)] [Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 305-343 (Korea, Republic of)

2013-12-15T23:59:59.000Z

288

Natural Gas Infrastructure R&D and Methane Emissions Mitigation...  

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

Natural Gas Infrastructure R&D and Methane Emissions Mitigation Workshop Natural Gas Infrastructure R&D and Methane Emissions Mitigation Workshop November 12, 2014 11:00AM EST to...

289

Numerical modeling of methane venting from lake sediments  

E-Print Network (OSTI)

The dynamics of methane transport in lake sediments control the release of methane into the water column above, and the portion that reaches the atmosphere may contribute significantly to the greenhouse effect. The observed ...

Scandella, Benjamin P. (Benjamin Paul)

2010-01-01T23:59:59.000Z

290

Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

291

U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

292

Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

293

Texas--RRC District 4 Onshore Coalbed Methane Proved Reserves...  

Gasoline and Diesel Fuel Update (EIA)

4 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 4 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3...

294

Louisiana (with State Offshore) Coalbed Methane Proved Reserves...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Louisiana (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

295

Texas--RRC District 2 Onshore Coalbed Methane Proved Reserves...  

Annual Energy Outlook 2012 (EIA)

Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 2 Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

296

Eastern States Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Coalbed Methane Production (Billion Cubic Feet) Eastern States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

297

Western States Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Western States Coalbed Methane Production (Billion Cubic Feet) Western States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

298

Texas--RRC District 10 Coalbed Methane Proved Reserves (Billion...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Texas--RRC District 10 Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

299

Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet)  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

300

Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

Note: This page contains sample records for the topic "methane digester property" 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

Methane Adsorption and Dissociation and Oxygen Adsorption and...  

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

Methane Adsorption and Dissociation and Oxygen Adsorption and Reaction with CO on Pd Nanoparticles on MgO(100) and on Pd(111). Methane Adsorption and Dissociation and Oxygen...

302

NETL: Methane Hydrates - DOE/NETL Projects  

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

Gas Hydrate Production Trial Using CO2 / CH4 Exchange Completed Gas Hydrate Production Trial Using CO2 / CH4 Exchange Completed DE-NT0006553 Goal The goal of this project is to define, plan, conduct and evaluate the results of a field trial of a methane hydrate production methodology whereby carbon dioxide (CO2) molecules are exchanged in situ for methane (CH4) molecules within a hydrate structure, releasing the methane for production. The objective is to evaluate the viability of this hydrate production technique and to understand the implications of the process at a field scale. image showing Conceptual rendering of proposed CO2 - CH4 exchange methodology for the production of natural gas from hydrates Conceptual rendering of proposed CO2 - CH4 exchange methodology for the

303

Direct use of methane in coal liquefaction  

DOE Patents (OSTI)

This invention relates to a process for converting solid carbonaceous material, such as coal, to liquid and gaseous hydrocarbons utilizing methane, generally at a residence time of about 20-120 minutes at a temperature of 250.degree.-750.degree. C., preferably 350.degree.-450.degree. C., pressurized up to 6000 psi, and preferably in the 1000-2500 psi range, preferably directly utilizing methane 50-100% by volume in a mix of methane and hydrogen. A hydrogen donor solvent or liquid vehicle such as tetralin, tetrahydroquinoline, piperidine, and pyrolidine may be used in a slurry mix where the solvent feed is 0-100% by weight of the coal or carbonaceous feed. Carbonaceous feed material can either be natural, such as coal, wood, oil shale, petroleum, tar sands, etc., or man-made residual oils, tars, and heavy hydrocarbon residues from other processing systems.

Sundaram, Muthu S. (Shoreham, NY); Steinberg, Meyer (Melville, NY)

1987-01-01T23:59:59.000Z

304

Direct use of methane in coal liquefaction  

DOE Patents (OSTI)

This invention relates to a process for converting solid carbonaceous material, such as coal, to liquid and gaseous hydrocarbons utilizing methane, generally at a residence time of about 20 to 120 minutes at a temperature of 250 to 750/sup 0/C, preferably 350 to 450/sup 0/C, pressurized up to 6000 psi, and preferably in the 1000 to 2500 psi range, preferably directly utilizing methane 50 to 100% by volume in a mix of methane and hydrogen. A hydrogen donor solvent or liquid vehicle such as tetralin, tetrahydroquinoline, piperidine, and pyrolidine may be used in a slurry mix where the solvent feed is 0 to 100% by weight of the coal or carbonaceous feed. Carbonaceous feed material can either be natural, such as coal, wood, oil shale, petroleum, tar sands, etc., or man-made residual oils, tars, and heavy hydrocarbon residues from other processing systems. 1 fig.

Sundaram, M.S.; Steinberg, M.

1985-06-19T23:59:59.000Z

305

MethaneHydrateRD_FC.indd  

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

gas is an important energy gas is an important energy resource for the United States, providing nearly one-quarter of total energy use. The Department of Energy's Office of Fossil Energy (FE) has played a major role in developing technologies to help tap new, unconventional sources of natural gas. FOSSIL ENERGY RESEARCH BENEFITS Methane Hydrate R&D "The (DOE) Program has supported and managed a high-quality research portf olio that has enabled signifi cant progress toward the (DOE) Program's long-term goals." The Nati onal Academies 2010 One of these is methane hydrate - molecules of natural gas trapped in ice crystals. Containing vast amounts of natural gas, methane hydrate occurs in a variety of forms in sediments within and below thick permafrost in Arctic regions, and in the

306

Measurements of Methane Emissions at Natural Gas Production Sites  

E-Print Network (OSTI)

Measurements of Methane Emissions at Natural Gas Production Sites in the United States #12;Why = 21 #12;Need for Study Ā· Estimates of methane emissions from natural gas production , from academic in assumptions in estimating emissions Ā· Measured data for some sources of methane emissions during natural gas

Lightsey, Glenn

307

Gravimetric study of adsorbed intermediates in methanation of carbon monoxide  

SciTech Connect

The purpose of this study is to more fully elucidate the adsorbed intermediates and mechanism involved in catalytic methanation of CO on a typical nickel methanation catalyst. Rates of adsorption and desorption of surface species and of gasification of carbon were measured gravimetrically to determine their kinetics and possible roles in methanation. 19 refs.

Gardner, D.C.; Bartholomew, C.H.

1981-08-01T23:59:59.000Z

308

Planetary and Space Science 54 (2006) 11771187 Titan's methane cycle  

E-Print Network (OSTI)

Abstract Methane is key to sustaining Titan's thick nitrogen atmosphere. However, methane is destroyed and the pressure induced opacity in the infrared, particularly by CH4Ā­N2 and H2Ā­N2 collisions in the troposphere), whose reaction with carbon grains or carbon dioxide in the crustal pores produces methane gas

Atreya, Sushil

309

METHANE IN SUBSURFACE: MATHEMATICAL MODELING AND COMPUTATIONAL CHALLENGES  

E-Print Network (OSTI)

advanced models of adsorption occuring in coalbed methane recovery processes, and discuss the underlying methods, hysteresis, coalbed methane, mean-field equi- librium models AMS(MOS) subject classifications. 76 applications important for global climate and energy studies, namely Enhanced Coalbed Methane (ECBM) recovery

Peszynska, Malgorzata

310

Methane in lakes and wetlands Microbiological production, ecosystem  

E-Print Network (OSTI)

Methane in lakes and wetlands Microbiological production, ecosystem uptake, climatological significance LAKES AND WETLANDS Ā­ A RELEVANT METHANE SOURCE Lakes and other wetlands are an important source methane from wetlands will respond to future climatic change. Dr. Paul Bodelier (Netherlands Institute

MĆ¼hlemann, Oliver

311

Detection and Production of Methane Hydrate  

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

July-September 2007 July-September 2007 Detection and Production of Methane Hydrate Submitted by: Rice University University of Houston George J. Hirasaki Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Phone: 713-348-5416; FAX: 713-348-5478; Email: gjh@rice.edu Prepared for: United States Department of Energy National Energy Technology Laboratory December, 2007 Office of Fossil Energy Table of Contents DOE Methane Hydrate Program Peer Review.................................................. 3 Task 5: Carbon Inputs and Outputs to Gas Hydrate Systems ........................... 3 Task 6: Numerical Models for Quantification of Hydrate and Free Gas Accumulations....................................................................................................

312

Property  

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

7 7 AUDIT REPORT PERSONAL PROPERTY AT THE OAK RIDGE OPERATIONS OFFICE AND THE OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES APRIL 1998 Page 10 DEPARTMENT OF ENERGY Washington, DC 20585 April 6, 1998 MEMORANDUM FOR THE MANAGER, OAK RIDGE OPERATIONS OFFICE AND THE DIRECTOR, OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION FROM: Terry L. Brendlinger Eastern Regional Audit Office Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Personal Property at the Oak Ridge Operations Office and the Office of Scientific and Technical Information" BACKGROUND The Oak Ridge Operations Office (Operations Office) and the Office of Scientific and Technical Information

313

Pilot-scale anaerobic co-digestion of municipal biomass waste and waste activated sludge in China: Effect of organic loading rate  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Co-digestion of municipal biomass waste (MBW) and waste activated sludge (WAS) was examined on a pilot-scale reactor. Black-Right-Pointing-Pointer System performance and stability under OLR of 1.2, 2.4, 3.6, 4.8, 6.0 and 8.0 kg VS (m{sup 3} d){sup -1} were analyzed. Black-Right-Pointing-Pointer A maximum methane production rate of 2.94 m{sup 3} (m{sup 3} d){sup -1} was achieved at OLR of 8.0 kg VS (m{sup 3} d){sup -1} and HRT of 15d. Black-Right-Pointing-Pointer With the increasing OLRs, pH values, VS removal rate and methane concentration decreased and VFA increased. Black-Right-Pointing-Pointer The changing of biogas production rate can be a practical approach to monitor and control anaerobic digestion system. - Abstract: The effects of organic loading rate on the performance and stability of anaerobic co-digestion of municipal biomass waste (MBW) and waste activated sludge (WAS) were investigated on a pilot-scale reactor. The results showed that stable operation was achieved with organic loading rates (OLR) of 1.2-8.0 kg volatile solid (VS) (m{sup 3} d){sup -1}, with VS reduction rates of 61.7-69.9%, and volumetric biogas production of 0.89-5.28 m{sup 3} (m{sup 3} d){sup -1}. A maximum methane production rate of 2.94 m{sup 3} (m{sup 3} d){sup -1} was achieved at OLR of 8.0 kg VS (m{sup 3} d){sup -1} and hydraulic retention time of 15 days. With increasing OLRs, the anaerobic reactor showed a decrease in VS removal rate, average pH value and methane concentration, and a increase of volatile fatty acid concentration. By monitoring the biogas production rate (BPR), the anaerobic digestion system has a higher acidification risk under an OLR of 8.0 kg VS (m{sup 3} d){sup -1}. This result remarks the possibility of relating bioreactor performance with BPR in order to better understand and monitor anaerobic digestion process.

Liu Xiao, E-mail: liuxiao07@mails.tsinghua.edu.cn [School of Environment, Tsinghua University, Beijing 100084 (China); Wang Wei; Shi Yunchun; Zheng Lei [School of Environment, Tsinghua University, Beijing 100084 (China); Gao Xingbao [Chinese Research Academy of Environmental Sciences, Beijing 100012 (China); Qiao Wei [State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249 (China); Zhou Yingjun [Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540 (Japan)

2012-11-15T23:59:59.000Z

314

Unconventional gas resources. [Eastern Gas Shales, Western Gas Sands, Coalbed Methane, Methane from Geopressured Systems  

SciTech Connect

This document describes the program goals, research activities, and the role of the Federal Government in a strategic plan to reduce the uncertainties surrounding the reserve potential of the unconventional gas resources, namely, the Eastern Gas Shales, the Western Gas Sands, Coalbed Methane, and methane from Geopressured Aquifers. The intent is to provide a concise overview of the program and to identify the technical activities that must be completed in the successful achievement of the objectives.

Komar, C.A. (ed.)

1980-01-01T23:59:59.000Z

315

File:Methane.pdf | Open Energy Information  

Open Energy Info (EERE)

Methane.pdf Methane.pdf Jump to: navigation, search File File history File usage File:Methane.pdf Size of this preview: 448 Ć— 600 pixels. Go to page 1 2 3 4 5 Go! next page ā†’ next page ā†’ Full resolution ā€ˇ(1,218 Ć— 1,630 pixels, file size: 929 KB, MIME type: application/pdf, 5 pages) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 15:51, 9 February 2012 Thumbnail for version as of 15:51, 9 February 2012 1,218 Ć— 1,630, 5 pages (929 KB) Graham7781 (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information) File usage The following page links to this file: Hydraulic Fracturing Retrieved from "http://en.openei.org/w/index.php?title=File:Methane.pdf&oldid=404017"

316

Hydroelectric Reservoirs -the Carbon Dioxide and Methane  

E-Print Network (OSTI)

Hydroelectric Reservoirs - the Carbon Dioxide and Methane Emissions of a "Carbon Free" Energy an overview on the greenhouse gas production of hydroelectric reservoirs. The goals are to point out the main how big the greenhouse gas emissions from hydroelectric reservoirs are compared to thermo-power plants

Fischlin, Andreas

317

High Temperature Solar Splitting of Methane  

E-Print Network (OSTI)

-term commercialization opportunities #12;Why Use Solar Energy?Why Use Solar Energy? Ā· High concentrations possible (>1000High Temperature Solar Splitting of Methane to Hydrogen and Carbon High Temperature Solar Splitting and worldwide) Ā­ Sufficient to power the world (if we choose to) Ā· Advantages tradeoff against collection area

318

California - Coastal Region Coalbed Methane Proved Reserves ...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 - No Data...

319

Generating power with drained coal mine methane  

SciTech Connect

The article describes the three technologies most commonly used for generating electricity from coal mine methane: internal combustion engines, gas turbines, and microturbines. The most critical characteristics and features of these technologies, such as efficiency, output and size are highlighted. 5 refs.

NONE

2005-09-01T23:59:59.000Z

320

Global atmospheric methane: budget, changes and dangers  

Science Journals Connector (OSTI)

...contribute emissions to an air...larger. Reducing emissions from many...emissions related to economic...climate|greenhouse gas mitigation...Prospects for reducing emissions Methane is...reductions in greenhouse warming...agriculture, energy sectors...oil and gas) and landfills...

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

Enhancement of Biogenic Coalbed Methane Production and Back Injection of Coalbed Methane Co-Produced Water  

SciTech Connect

Biogenic methane is a common constituent in deep subsurface environments such as coalbeds and oil shale beds. Coalbed methane (CBM) makes significant contributions to world natural gas industry and CBM production continues to increase. With increasing CBM production, the production of CBM co-produced water increases, which is an environmental concern. This study investigated the feasibility in re-using CBM co-produced water and other high sodic/saline water to enhance biogenic methane production from coal and other unconventional sources, such as oil shale. Microcosms were established with the selected carbon sources which included coal, oil shale, lignite, peat, and diesel-contaminated soil. Each microcosm contained either CBM coproduced water or groundwater with various enhancement and inhibitor combinations. Results indicated that the addition of nutrients and nutrients with additional carbon can enhance biogenic methane production from coal and oil shale. Methane production from oil shale was much greater than that from coal, which is possibly due to the greater amount of available Dissolved Organic Carbon (DOC) from oil shale. Inconclusive results were observed from the other sources since the incubation period was too low. WRI is continuing studies with biogenic methane production from oil shale.

Song Jin

2007-05-31T23:59:59.000Z

322

Ethanol and Methane Production from Oil Palm Frond by Two Stage SSF  

Science Journals Connector (OSTI)

Abstract A two step, included process producing ethanol from oil palm fronts (OPF) by two-stage simultaneous saccharification and Saccharomyces cerevisiae fermentation followed by anaerobic digestion of its effluent to produce methane was investigated. OPF was soaked in dilute sulfuric acid, hydrogen peroxide and water consequently pretreated by microwave for preparing of cellulose and followed by simultaneous saccharification and fermentation. The result indicated OPF soaking in water gave a maximal ethanol yield was 0.32 g-ethanol/g-glucose which was 62.75% of the ethanol theoretical yield (0.51g-ethanol/g-glucose). The effluent from the ethanol production process was used to produce methane with the yield of 514 ml CH4/g VS added. Therefore, soaking in water and microwave co-pretreatment could helpful due to its low toxicity and low corrosion compare to sulfuric acid and hydrogen peroxide which improves the efficiency of enzymatic hydrolysis. The maximum energy output of the process (745 kWh/ ton of OPF) was about 72% of the energy contributed by cellulose fraction, contained in the oil palm frond.

Tussanee Srimachai; Veerasak Thonglimp; Sompong O-Thong

2014-01-01T23:59:59.000Z

323

Coal Bed Methane Protection Act (Montana) | Department of Energy  

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

Coal Bed Methane Protection Act (Montana) Coal Bed Methane Protection Act (Montana) Coal Bed Methane Protection Act (Montana) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Rural Electric Cooperative Tribal Government Institutional Fuel Distributor Program Info State Montana Program Type Environmental Regulations Provider Montana Department of Natural Resources and Conservation The Coal Bed Methane Protection Act establishes a long-term coal bed methane protection account and a coal bed methane protection program for the purpose of compensating private landowners and water right holders for damage to land and to water quality and availability that is attributable to the development of coal bed methane wells. The Act aims to provide for

324

Methane Hydrates - The National R&D Program  

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

Methane Hydrates R&D Program Methane Hydrates R&D Program The National Methane Hydrates R&D Program Welcome to the information portal for the National Methane Hydrate R&D Program. Over the past eight years, research carried out under this program has resulted in significant advances in our understanding of methane hydrates, their role in nature, and their potential as a future energy resource. This success is largely due to an unprecedented level of cooperation between federal agencies, industry, national laboratories, and academic institutions. For a quick introduction to methane hydrate and its potential as a fuel source, please read the 2011 Methane Hydrates Primer. Information on other elements of the program can be found under the remaining Key Links. Read More.

325

Influence of bed materials on methanogenic characteristics and immobilized microbes in anaerobic digester  

Science Journals Connector (OSTI)

This paper reports and discusses the effects of bed materials on the performance of methanogenic fluidized bed reactors with acetic acid as the sole organic substrate. Four bed materials (carbon filter, rock wool, loofah sponge and polyurethane foam) were evaluated and compared for their methanogenic characteristics and immobilized microbes. The present results indicated that the characteristics of the bed materials for immobilization had a significant influence on the methane production. The loofah sponge and polyurethane foam were suggested to be suitable for the bed material in anaerobic digestion. The best methane yield was obtained from the loofah reactor among the four kinds of bed materials. The main cellular morphologies present in the biofilms of the four different materials on the colonization were observed using scanning electron microscopy. The microphotographs indicated that the biofilm was primarily composed of coccus, diplococci-shaped Methanosarcina-like cells, long rods of Methanobacterium and coccobacillus of Methanobrevibacter-like bacteria. The morphologies observed from the microscopic analysis indicated that the different bed materials could provide specific conditions for the adherence of distinct microorganism types. Furthermore, a 16S rRNA phylogenetic analysis was conducted to compare the immobilized archaeal population. The results of the 16S rRNA phylogenetic analysis indicated that the major immobilized methanogens were Methanobacterium formicicum, Methanosarcina barkeri and Methanosarcina mazei in all the bed materials. A similar clone distribution was observed with the loofah sponge and the carbon felt.

Yingnan Yang; Chika Tada; Md Shohidullah Miah; Kenichiro Tsukahara; Tatsuo Yagishita; Shigeki Sawayama

2004-01-01T23:59:59.000Z

326

NETL: Methane Hydrates - DOE/NETL Projects - Natural Gas Hydrates in  

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

Natural Gas Hydrates in Permafrost and Marine Settings: Resources, Properties, and Environmental Issues Last Reviewed 12/30/2013 Natural Gas Hydrates in Permafrost and Marine Settings: Resources, Properties, and Environmental Issues Last Reviewed 12/30/2013 DE-FE0002911 Goal The objective of this DOE-USGS Interagency Agreement is to provide world-class expertise and research in support of the goals of the 2005 Energy Act for National Methane Hydrates R&D, the DOE-led U.S. interagency roadmap for gas hydrates research, and elements of the USGS mission related to energy resources, global climate, and geohazards. This project extends USGS support to the DOE Methane Hydrate R&D Program previously conducted under DE-AI26-05NT42496. Performer U.S. Geological Survey at Woods Hole, MA, Denver, CO, and Menlo Park, CA Background The USGS Interagency Agreement (IA) involves laboratory research and

327

Electron-induced dry reforming of methane in a temperature-controlled dielectric barrier discharge reactor  

Science Journals Connector (OSTI)

Dry reforming of methane has the potential to reduce the greenhouse gases methane and carbon dioxide and to generate hydrogen-rich syngas. In reforming methane, plasma-assisted reforming processes may have advantages over catalytic processes because they are free from coking and their response time for mobile applications is quick. Although plasma-assisted reforming techniques have seen recent developments, systematic studies that clarify the roles that electron-induced chemistry and thermo-chemistry play are needed for a full understanding of the mechanisms of plasma-assisted reformation. Here, we developed a temperature-controlled coaxial dielectric barrier discharge (DBD) apparatus to investigate the relative importance of electron-induced chemistry and thermo-chemistry in dry reforming of methane. In the tested background temperature range 297–773 K, electron-induced chemistry, as characterized by the physical properties of micro-discharges, was found to govern the conversions of CH4 and CO2, while thermo-chemistry influenced the product selectivities because they were found to depend on the background temperature. Comparisons with results from arc-jet reformation indicated that thermo-chemistry is an efficient conversion method. Our findings may improve designs of plasma-assisted reformers by using relatively hotter plasma sources. However, detailed chemical kinetic studies are needed.

Xuming Zhang; Min Suk Cha

2013-01-01T23:59:59.000Z

328

Digestion Experiments With Texas Feeding Stuffs.  

E-Print Network (OSTI)

477-514-15m TEXAS AGRICULTURAL EXPERIMENT STATION BULLETIN NO. 166. MAK, 1914 DIVISION OF CHEMISTRY Digestion Experiments With Texas Feeding Stuffs Digeisston oExxprp gmWmhETa FdWSEu oEfTm1a ep2Wu VON BOECKMANN-JONES CO., PRINTERS, AUSTIN... EXPERIMENTS WITH TEXAS FEEDING STUFFS B Y Gr. S. PRAPS., P H . D., Chemist. This bulletin contains the results of digestion tests with the ordi? nary fodder groups of certain feeding stuffs. Other results have been published in Bulletin 149...

Fraps, G. S.

1914-01-01T23:59:59.000Z

329

Digestion Experiments on Men with Cottonseed Meal.  

E-Print Network (OSTI)

in Charge W . Z. M i l l e r , B . S., Scientific Assistant , Animal Husbandman SUBSTATION NO . 6 : Krum, Denton County D IV ISION OF EN TOM OLOGY T - W - B u e l l , B . S., Superintendent W ilm on N ew e ll , M . S., Entomologist in SUBSTATION... beings. Mendel and Fine (J . Biol. Chem. I I , I ) fed cottonseed flour to dogs and found that 71.6 per cent of the proteins were digested, on an average, and when meat was fed to the same animals that 91.0 per cent protein was digested. Since...

Rather, J. B. (James Burness)

1913-01-01T23:59:59.000Z

330

A new temperature controlled digester for anaerobic digestion for biogas production  

Science Journals Connector (OSTI)

Various types of insulating composite materials were used on ceramic digesters for the control of temperature. Maintenance of temperature is highlighted in this paper. The above types of digesters can adequately control the temperature, especially in the winter season. The results of extensive experimental and theoretical studies have been cited in this paper. This work is beneficial for those plants which are generally in higher altitude stations with low atmospheric temperature, like Leh (India). These types of digesters were found to be very useful for the production of biogas, especially from aquatic biomass like water hyacinth.

Upama Misra; Sanjay Singh; Amarika Singh; G.N. Pandey

1992-01-01T23:59:59.000Z

331

Economic implications of anaerobic digesters on dairy farms in Texas  

E-Print Network (OSTI)

-selling price, digesters are less economically feasible than current waste management strategies, lagoons, even after considering potential environmental penalties. However, selling electricity and capturing by-product heat for cost savings makes the digester...

Jackson, Randy Scott, Jr.

2007-09-17T23:59:59.000Z

332

Regulation of methane genes and genome expression  

SciTech Connect

At the start of this project, it was known that methanogens were Archaeabacteria (now Archaea) and were therefore predicted to have gene expression and regulatory systems different from Bacteria, but few of the molecular biology details were established. The goals were then to establish the structures and organizations of genes in methanogens, and to develop the genetic technologies needed to investigate and dissect methanogen gene expression and regulation in vivo. By cloning and sequencing, we established the gene and operon structures of all of the “methane” genes that encode the enzymes that catalyze methane biosynthesis from carbon dioxide and hydrogen. This work identified unique sequences in the methane gene that we designated mcrA, that encodes the largest subunit of methyl-coenzyme M reductase, that could be used to identify methanogen DNA and establish methanogen phylogenetic relationships. McrA sequences are now the accepted standard and used extensively as hybridization probes to identify and quantify methanogens in environmental research. With the methane genes in hand, we used northern blot and then later whole-genome microarray hybridization analyses to establish how growth phase and substrate availability regulated methane gene expression in Methanobacterium thermautotrophicus ?H (now Methanothermobacter thermautotrophicus). Isoenzymes or pairs of functionally equivalent enzymes catalyze several steps in the hydrogen-dependent reduction of carbon dioxide to methane. We established that hydrogen availability determine which of these pairs of methane genes is expressed and therefore which of the alternative enzymes is employed to catalyze methane biosynthesis under different environmental conditions. As were unable to establish a reliable genetic system for M. thermautotrophicus, we developed in vitro transcription as an alternative system to investigate methanogen gene expression and regulation. This led to the discovery that an archaeal protein, designated TFE, that had sequences in common with the eukaryotic general transcription factor TFIIE, stimulated archaeal transcription initiation and that the archaeal TATA-box binding protein (TBP) remained attached to the promoter region whereas the transcription factor TFB dissociated from the template DNA following initiation. DNA sequences that directed the localized assembly of archaeal histones into archaeal nucleosomes were identified, and we established that transcription by an archaeal RNA polymerase was slowed but not blocked by archaeal nucleosomes. We developed a new protocol to purify archaeal RNA polymerases and with this enzyme and additional improvements to the in vitro transcription system, we established the template requirements for archaeal transcription termination, investigated the activities of proteins predicted to be methane gene regulators, and established how TrpY, a novel archaeal regulator of expression of the tryptophan biosynthetic operon functions in M. thermautotrophicus. This also resulted in the discovery that almost all M. thermautotrophicus mutants isolated as spontaneously resistant to 5-methyl tryptophan (5MTR) had mutations in trpY and were therefore 5MTR through de-repressed trp operon expression. This established a very simple, practical procedure to determine and quantify the DNA sequence changes that result from exposure of this Archaeon to any experimental mutagenesis protocol. Following the discovery that the Thermococcus kodakaraensis was amenable to genetic manipulation, we established this technology at OSU and subsequently added plasmid expression, a reporter system and additional genetic selections to the T. kodakaraensis genetic toolbox. We established that transcription and translation are coupled in this Archaeon, and by combining in vitro transcription and in vivo genetics, we documented that both TFB1 and TFB2 support transcription initiation in T. kodakaraensis. We quantified the roles of ribosome binding sequences and alternative initiation codons in translation initiation, established that polarity e

John N. Reeve

2009-09-09T23:59:59.000Z

333

Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana)  

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

The Indiana Department of Environmental Management requires permits before the construction or expansion of biomass anaerobic digestion or gasification facilities.

334

Digestibility and Production Coefficients of Hog Feeds.  

E-Print Network (OSTI)

LIDEARY, A t% !*I COLLEGE, CA%!PUS. TEXAS AGRICULTURAL EXPERIMENT STATiON A. B. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS 7 BULLETIN NO. 454 SEPTEMBER, 1932 Digestibility and Production Coefficients of Hog Feeds AGRICULTURAI... .................................................................. 16 Compositjon and feeding values of pig feeds 17 Standards for pig feeding ----__.-_._----------- 1 22 Summary ----__..-----_--_-.---.--------------------- 23 Ref erenczs --------------.---------- 24 BULLETIN NO. 454 SEPTEMBER, 1932...

Fraps, G. S. (George Stronach)

1932-01-01T23:59:59.000Z

335

Digestion Experiments with Texas Hays and Fodders.  

E-Print Network (OSTI)

. T. MILNER. .College Station I I STATION STAFF. I ............................................. B. YOUNGIILOOD, M S. .Director ......................................... M. FRANCIS, D. V. S.. Veterinarian.... B. Gottlieb, and T. L. Ogier. Special mention should be made of the services of J. B. Rather. TABLE +COMPOSITION OF FEEDING STUFFS AND RESIDUES FROM DIGESTION ZSPERTMENTS. Nitro- Pro- Ether Crude tein. 1 - 1 fiber. I frr$: TVater. 1 Labora...

Fraps, G. S. (George Stronach)

1912-01-01T23:59:59.000Z

336

Raman spectroscopic and mass spectrometric investigations of the hydrogen isotopes and isotopically labelled methane  

SciTech Connect

Suitable analytical methods must be tested and developed for monitoring the individual process steps within the fuel cycle of a fusion reactor and for tritium accountability. The utility of laser-Raman spectroscopy accompanied by mass spectrometry with an Omegatron was investigated using the analysis of all hydrogen isotopes and isotopically labeled methanes as an example. The Omegatron is useful for analyzing all hydrogen isotopes mixed with the stable helium isotopes. The application of this mass spectrometer were demonstrated by analyzing mixtures of deuterated methanes. In addition, it was employed to study the radiochemical Witzbach exchange reaction between tritium and methanes. A laser-Raman spectrometer was designed for analysis of tritium-containing gases and was built from individual components. A tritium-compatible, metal-sealed Raman cuvette having windows with good optical properties and additional means for measuring the stray light was first used successfully in this work. The Raman spectra of the hydrogen isotopes were acquired in the pure rotation mode and in the rotation-vibration mode and were used for on. The deuterated methanes were measured by Raman spectroscopy, the wavenumbers determined were assigned to the corresponding vibrations, and the wavenumbers for the rotational fine-structure were summarized in tables. The fundamental Vibrations of the deuterated methanes produced Witzbach reactions were detected and assigned. The fundamental vibrations of the molecules were obtained with Raman spectroscopy for the first time in this work. The @-Raman spectrometer assembled is well suited for the analysis of tritium- containing gases and is practical in combination with mass spectrometry using an Omegatron, for studying gases used in fusion.

Jewett, J.R., Fluor Daniel Hanford

1997-02-24T23:59:59.000Z

337

NETL: Methane Hydrates - DOE/NETL Projects  

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

In Situ Sampling and Characterization of Naturally Occurring Methane Hydrate Using the D/V JOIDES Resolution Last Reviewed 02/05/2010 In Situ Sampling and Characterization of Naturally Occurring Methane Hydrate Using the D/V JOIDES Resolution Last Reviewed 02/05/2010 DE-FC26-01NT41329 photo of a man showing the pressure core sampler on the deck of JOIDES Resolution Pressure core sampler on deck courtesy Texas A&M University Goal The goal of the project was to characterize hydrate accumulation at Hydrate Ridge (offshore Oregon) and improve the ability to use geophysical and subsurface logging to identify hydrates. A follow-on goal was to characterize hydrate accumulation at offshore Vancouver Island, BC, Canada. Background This project focused on physically verifying the existence of hydrates at Hydrate Ridge through the collection of pressurized and non-pressurized core samples and logging data. This study developed and tested tools to

338

NETL: Methane Hydrates - DOE/NETL Projects  

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

Detection and Production of Methane Hydrate Last Reviewed 5/15/2012 Detection and Production of Methane Hydrate Last Reviewed 5/15/2012 DE-FC26-06NT42960 Goal The goal of this project is to improve the understanding of regional and local differences in gas hydrate systems from three perspectives: as an energy resource, as a geohazard, and as a long-term influence on global climate. Performers Rice University, Houston, TX University of Texas, Austin, TX Oklahoma State University, Stillwater, OK Background Heterogeneity in the distribution of gas hydrate accumulations impacts all aspects of research into gas hydrate natural systems. The challenge is to delineate, understand, and appreciate these differences at the regional and local scales, where differences in in situ concentrations are relevant to the importance of gas hydrate as a resource, a geohazard, and a factor in

339

NETL: Methane Hydrates - DOE/NETL Projects  

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

- Methane Hydrate Research - Geoscience Evaluations and Field Studies Last Reviewed 3/18/2013 - Methane Hydrate Research - Geoscience Evaluations and Field Studies Last Reviewed 3/18/2013 Project Goals The primary goals of the DOE/NETL Natural Gas Hydrate Field Studies (NGHFS) project are: Conduct field-based studies that advance the ability to predict, detect, characterize, and understand distribution of and controls on natural gas hydrate occurrences. Analyze geologic, geochemical, and microbiologic data for indications of past and current changes to the stability of natural gas hydrate in marine settings. Develop links between the U.S. Gas Hydrate Program and international R&D efforts through direct participation in international field programs and workshops. Evaluate the potential role natural gas hydrates may play in the global carbon cycle through analysis of modern and paleo-natural gas

340

NETL: Methane Hydrates - DOE/NETL Projects  

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

Phase 1 - Characterization and Qualification of the Methane Hydrate Resource Potential Associated with the Barrow Gas Fields Phase 1 - Characterization and Qualification of the Methane Hydrate Resource Potential Associated with the Barrow Gas Fields DE-FC26-06NT42962 Goal The goal of this project is to characterize and quantify the postulated gas hydrate resource associated with the Barrow Gas Fields Ā– three producing fields located in a permafrost region near Barrow, the North Slope's biggest population center and economic hub. Map of the North Slope Borough showing the location of its eight major communities, including Barrow, the site of this research project. Map of the North Slope Borough showing the location of its eight major communities, including Barrow, the site of this research project. Performers North Slope Borough, Barrow, Alaska (North Slope Borough) 99723

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341

NETL: Methane Hydrates - DOE/NETL Projects  

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

Methane Hydrate Production from Alaskan Permafrost Last Reviewed 02/05/2010 Methane Hydrate Production from Alaskan Permafrost Last Reviewed 02/05/2010 DE-FC26-01NT41331 photo of new Anadarko drilling rig in place at Hot Ice No.1 on Alaska's North Slope Hot Ice No. 1 Drilling Platform courtesy Anadarko Petroleum Corp. Goal The goal of the project was to develop technologies for drilling and recovering hydrates in arctic areas. The specific objectives were to drill, core, and test a well through the hydrate stability zone in northern Alaska Performers Maurer Technology, Inc.* - Project coordination with DOE Anadarko Petroleum Corporation - Overall project management for the design, construction, and operation of the Arctic Drilling Platform and mobile core lab, and field coring operations Noble Engineering and Development* - Real time data collection and

342

Detection and Production of Methane Hydrate  

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

Oil & Natural Gas Technology Oil & Natural Gas Technology DOE Award No.: DE-FC26-06NT42960 Quarterly Progress Report Reporting Period: April-June 2007 Detection and Production of Methane Hydrate Submitted by: Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Prepared for: United States Department of Energy National Energy Technology Laboratory August, 2007 Office of Fossil Energy Detection and Production of Methane Hydrate Quarterly Progress Report Reporting Period: April-June 2007 Prepared by: George Hirasaki Rice University August 2007 CONTRACT NO. DE-FC26-06NT42960 Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Phone: 713-348-5416; Fax: 713-348-5478; Email: gjh@rice.edu

343

Methane Hydrate Field Studies | Department of Energy  

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

Field Studies Field Studies Methane Hydrate Field Studies Arctic/Alaska North Slope Field Studies Since 2001, DOE has conducted field trials of exploration and production technology in the Alaska North Slope. Although Alaska methane hydrate resources are smaller than marine deposits and currently lack outlets to commercial markets, Alaska provides an excellent laboratory to study E&P technology. The research also has implications for various Alaska resources, including potential gas hydrate resources for local communities, conventional "stranded" gas, as well as Alaska's large unconventional oil resources. The hydrate deposits have been delineated in the process of developing underlying oil fields, and drilling costs are much lower than offshore. DOE-BP Project

344

Enhanced carbon monoxide utilization in methanation process  

DOE Patents (OSTI)

Carbon monoxide - containing gas streams are passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. The active carbon is subsequently reacted with steam or hydrogen to form methane. Surprisingly, hydrogen and water vapor present in the feed gas do not adversely affect CO utilization significantly, and such hydrogen actually results in a significant increase in CO utilization.

Elek, Louis F. (Peekskill, NY); Frost, Albert C. (Congers, NY)

1984-01-01T23:59:59.000Z

345

NETL: Methane Hydrates - DOE/NETL Projects  

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

Support of Gulf of Mexico Hydrate Research Consortium: Activities to Support Establishment of Sea Floor Monitoring Station Support of Gulf of Mexico Hydrate Research Consortium: Activities to Support Establishment of Sea Floor Monitoring Station DE-FC26-02NT41328 Goal Determine the potential impacts of gas hydrate instability in terms of the release of methane into seafloor sediments, the ocean and the atmosphere. Performers University of California, San Diego (Scripps Institution of Oceanography) - manage geochemical, hydrological and sedimentological investigations Texas A&M University - manage field monitoring program Location La Jolla, California 92093 Background This project will monitor, characterize, and quantify the rates of formation and dissociation of methane gas hydrates at and near the seafloor in the northern Gulf of Mexico, and determine linkages between formation/dissociation and physical/chemical parameters of the deposits over the course of a year. The stability and response of shallow gas hydrates to temperature and chemical perturbations will be monitored in situ, and localized seafloor and water column environmental impacts of hydrate formation and dissociation characterized. The following will be determined: 1) The equilibrium/steady state conditions for structure II methane gas hydrates at the field site,2) whether the system is in dynamic equilibrium and the local hydrology is characterized by steady state episodic fluid flow, and 3) how fluid fluxes and fluid composition work together to dynamically influence gas hydrate stability.

346

Alternative technologies to steam-methane reforming  

SciTech Connect

Steam-methane reforming (SMR) has been the conventional route for hydrogen and carbon monoxide production from natural gas feedstocks. However, several alternative technologies are currently finding favor for an increasing number of applications. The competing technologies include: steam-methane reforming combined with oxygen secondary reforming (SMR/O2R); autothermal reforming (ATR); thermal partial oxidation (POX). Each of these alternative technologies uses oxygen as a feedstock. Accordingly, if low-cost oxygen is available, they can be an attractive alternate to SMR with natural gas feedstocks. These technologies are composed technically and economically. The following conclusions can be drawn: (1) the SMR/O2R, ATR and POX technologies can be attractive if low-cost oxygen is available; (2) for competing technologies, the H{sub 2}/CO product ratio is typically the most important process parameter; (3) for low methane slip, the SMR/O2R, ATR and POX technologies are favored; (4) for full CO{sub 2} recycle, POX is usually better than ATR; (5) relative to POX, the ATR is a nonlicensed technology that avoids third-party involvement; (6) economics of each technology are dependent on the conditions and requirements for each project and must be evaluated on a case-by-case basis.

Tindall, B.M.; Crews, M.A. [Howe-Baker Engineers, Inc., Tyler, TX (United States)

1995-11-01T23:59:59.000Z

347

Carbon dioxide adsorption and methanation on ruthenium  

SciTech Connect

The adsorption and methanation of carbon dioxide on a ruthenium-silica catalyst were studied using temperature-programmed desorption (TPD) and temperature-programmed reaction (TPR). Carbon dioxide adsorption was found to be activated; CO/sub 2/ adsorption increased significantly as the temperature increased from 298 to 435 K. During adsorption, some of the CO/sub 2/ dissociated to carbon monoxide and oxygen; upon hydrogen exposure at room temperature, the oxygen reacted to water. Methanation of adsorbed CO and of adsorbed CO/sub 2/, using TPR in flowing hydrogen, yielded a CH/sub 4/ peak with a peak temperature of 459 K for both adsorbates, indicating that both reactions follow the same mechanism after adsorption. This peak temperature did not change with initial surface coverage of CO, indicating that methanation is first order in CO coverage. The desorption and reaction spectra for Ru/SiO/sub 2/ were similar to those previously obtained for Ni/SiO/sub 2/, but both CO/sub 2/ formation and CH/sub 4/ formation proceeded faster on Ru. Also, the details of CO desorption and the changes in CO/sub 2/ and CO desorptions with initial coverage were different on the two metals. 5 figures, 3 tables.

Zagli, E.; Falconer, J.L.

1981-05-01T23:59:59.000Z

348

International Cooperation in Methane Hydrates | Department of Energy  

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

Oil & Gas Ā» Methane Hydrate Ā» Oil & Gas Ā» Methane Hydrate Ā» International Cooperation in Methane Hydrates International Cooperation in Methane Hydrates In 1982 the multi-national Deep Sea Drilling Program (DSDP) recovered the first subsea substantial methane hydrate deposits, which spurred methane hydrate research in the US and other countries. The successor programs, the Ocean Drilling Program (ODP) and the Integrated Ocean Drilling Program (IODP) sampled hydrate deposits off Oregon (ODP 204, 2002) and in the Cascadia Margin off Vancouver Island, Canada (ODP 146, 1992 and IODP 311, 2005). In the Atlantic Ocean off the US, ODP Leg 146 sampled hydrate deposits on the Blake Ridge and Carolina Rise in 1995. International cooperation helps scientists in the US and other countries

349

METHANE HYDRATE ADVISORY COMMITTEE U.S. Department of Energy  

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

METHANE HYDRATE ADVISORY COMMITTEE METHANE HYDRATE ADVISORY COMMITTEE U.S. Department of Energy Advisory Committee Charter - - - - ---- ---- ------~ 1. Committee's Official Designation. Methane Hydrate Advisory Committee (MHAC) 2. Authority:. This charter establishes the Methane Hydrate Advisory Committee (Committee) pursuant to Title IX, Subtitle F, Section 968, Methane Hydrate Research of the Energy Policy Act of 2005 (EPACT), Public Law 109-58. This charter establishes the MHAC under the authority of the Department of Energy (DOE). The MHAC is being renewed in accordance with the provisions of the Federal Advisory Committee Act (FACA), as amended, 5 U.S.C., App.2. 3. Objectives and Scope of Activities. The Committee provides advice to the Secretary of Energy by developing recommendations and broad programmatic priorities for the methane

350

Process for separating nitrogen from methane using microchannel process technology  

DOE Patents (OSTI)

The disclosed invention relates to a process for separating methane or nitrogen from a fluid mixture comprising methane and nitrogen, the process comprising: (A) flowing the fluid mixture into a microchannel separator, the microchannel separator comprising a plurality of process microchannels containing a sorption medium, the fluid mixture being maintained in the microchannel separator until at least part of the methane or nitrogen is sorbed by the sorption medium, and removing non-sorbed parts of the fluid mixture from the microchannel separator; and (B) desorbing the methane or nitrogen from the sorption medium and removing the desorbed methane or nitrogen from the microchannel separator. The process is suitable for upgrading methane from coal mines, landfills, and other sub-quality sources.

Tonkovich, Anna Lee (Marysville, OH); Qiu, Dongming (Dublin, OH); Dritz, Terence Andrew (Worthington, OH); Neagle, Paul (Westerville, OH); Litt, Robert Dwayne (Westerville, OH); Arora, Ravi (Dublin, OH); Lamont, Michael Jay (Hilliard, OH); Pagnotto, Kristina M. (Cincinnati, OH)

2007-07-31T23:59:59.000Z

351

Hydrogen production in Multi-Channel Membrane Reactor via Steam Methane Reforming and Methane Catalytic Combustion  

Science Journals Connector (OSTI)

Abstract A novel Multi-Channel Membrane Reactor (MCMR) was designed and built for the small-scale production of hydrogen via Steam Methane Reforming (SMR). The prototype alternates an SMR gas channel to produce hydrogen catalytically, with a Methane Catalytic Combustion (MCC) gas channel to provide the heat of reaction needed by the endothermic reforming. A palladium–silver membrane inside the reforming gas channel shifts the reaction equilibrium, allowing lower operating temperatures, and producing pure hydrogen in a single vessel. Using an innovative air-spray coating technique, channels were coated with Ru–MgO–La2O3/?-Al2O3 and Pd/?-Al2O3 catalyst particles for the SMR and MCC reactions, respectively. Results for the proof-of-concept MCMR showed that methane conversion in the reformer of 91% and a hydrogen purity in excess of 99.99% were possible with the reformer operating at 570 °C and 15 bar.

Alexandre Vigneault; John R. Grace

2014-01-01T23:59:59.000Z

352

Waste-to-wheel analysis of anaerobic-digestion-based renewable natural gas pathways with the GREET model.  

SciTech Connect

In 2009, manure management accounted for 2,356 Gg or 107 billion standard cubic ft of methane (CH{sub 4}) emissions in the United States, equivalent to 0.5% of U.S. natural gas (NG) consumption. Owing to the high global warming potential of methane, capturing and utilizing this methane source could reduce greenhouse gas (GHG) emissions. The extent of that reduction depends on several factors - most notably, how much of this manure-based methane can be captured, how much GHG is produced in the course of converting it to vehicular fuel, and how much GHG was produced by the fossil fuel it might displace. A life-cycle analysis was conducted to quantify these factors and, in so doing, assess the impact of converting methane from animal manure into renewable NG (RNG) and utilizing the gas in vehicles. Several manure-based RNG pathways were characterized in the GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation) model, and their fuel-cycle energy use and GHG emissions were compared to petroleum-based pathways as well as to conventional fossil NG pathways. Results show that despite increased total energy use, both fossil fuel use and GHG emissions decline for most RNG pathways as compared with fossil NG and petroleum. However, GHG emissions for RNG pathways are highly dependent on the specifics of the reference case, as well as on the process energy emissions and methane conversion factors assumed for the RNG pathways. The most critical factors are the share of flared controllable CH{sub 4} and the quantity of CH{sub 4} lost during NG extraction in the reference case, the magnitude of N{sub 2}O lost in the anaerobic digestion (AD) process and in AD residue, and the amount of carbon sequestered in AD residue. In many cases, data for these parameters are limited and uncertain. Therefore, more research is needed to gain a better understanding of the range and magnitude of environmental benefits from converting animal manure to RNG via AD.

Han, J.; Mintz, M.; Wang, M. (Energy Systems)

2011-12-14T23:59:59.000Z

353

Community-Scale Anaerobic Digesters Webinar | Department of Energy  

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

Community-Scale Anaerobic Digesters Webinar Community-Scale Anaerobic Digesters Webinar Community-Scale Anaerobic Digesters Webinar April 16, 2013 1:00PM MDT Webinar This free webinar will be held on April 16, 2013, from 1-2:15 p.m. Mountain Daylight Time. It will provide information on San Jose, California's, commercial-scale, high solids dry fermentation anaerobic digestion system, and the Forest County Potawatomi Community's anaerobic digester project. Implementing Anaerobic Digestion in San Jose's Integrated Processing Infrastructure This presentation will provide background on San Jose, California's, leading-edge program using the nation's first commercial-scale, high solids dry fermentation anaerobic digestion system to process commercial organics from more than 8,000 businesses in the city. Phase one of the Zero Waste

354

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

SciTech Connect

''Conventional'' waste landfills emit methane, a potent greenhouse gas, in quantities such that landfill methane is a major factor in global climate change. Controlled landfilling is a novel approach to manage landfills for rapid completion of total gas generation, maximizing gas capture and minimizing emissions of methane to the atmosphere. With controlled landfilling, methane generation is accelerated and brought to much earlier completion by improving conditions for biological processes (principally moisture levels) in the landfill. Gas recovery efficiency approaches 100% through use of surface membrane cover over porous gas recovery layers operated at slight vacuum. A field demonstration project's results at the Yolo County Central Landfill near Davis, California are, to date, highly encouraging. Two major controlled landfilling benefits would be the reduction of landfill methane emissions to minuscule levels, and the recovery of greater amounts of landfill methane energy in much shorter times than with conventional landfill practice. With the large amount of US landfill methane generated, and greenhouse potency of methane, better landfill methane control can play a substantial role in reduction of US greenhouse gas emissions.

Don Augenstein

1999-01-11T23:59:59.000Z

355

,"New Mexico Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2012,"6...

356

Warum Methan in der Atmosphäre ansteigt — Die Rolle von Archaebakterien  

Science Journals Connector (OSTI)

Methan ist ein brennbares Gas, das nach seiner Herkunft auch als Erdgas, Grubengas oder Sumpfgas bezeichnet wird. Es ist der einfachste Kohlenwasserstoff. Seine Summenformel ist CH4.

Rudolf K. Thauer

1992-01-01T23:59:59.000Z

357

Spektroskopische Vorgänge in Explosionszonen von Methan und anderen Kohlenwasserstoffen  

Science Journals Connector (OSTI)

Zur Untersuchung gelangen stehende Explosionen von Methan-Sauerstoff und vergleichsweise die von Acetylen- bzw. Benzoldampf-Sauerstoff. Die einzelnen Zonen bei der Verbrennung werden spektrographisch festgehal...

F. J. Lauer

1933-01-01T23:59:59.000Z

358

,"New York Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New York Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

359

Oxidation of methane by a biological dicopper centre  

Science Journals Connector (OSTI)

... Cu(I) ions and their implications. J. Am. Chem. Soc. 118, 12766–12776 (1996) Chan, S. I. et al. Redox potentiometry studies of particulate methane ...

Ramakrishnan Balasubramanian; Stephen M. Smith; Swati Rawat; Liliya A. Yatsunyk; Timothy L. Stemmler; Amy C. Rosenzweig

2010-04-21T23:59:59.000Z

360

,"California--State Offshore Coalbed Methane Proved Reserves...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","California--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

Note: This page contains sample records for the topic "methane digester property" 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

,"Texas (with State Offshore) Coalbed Methane Proved Reserves...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Texas (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

362

,"Louisiana--State Offshore Coalbed Methane Proved Reserves ...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

363

,"Lower 48 Federal Offshore Coalbed Methane Proved Reserves ...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

364

,"Texas--State Offshore Coalbed Methane Proved Reserves (Billion...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Texas--State Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

365

,"Louisiana (with State Offshore) Coalbed Methane Proved Reserves...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana (with State Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

366

,"Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--Texas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013...

367

,"Alaska (with Total Offshore) Coalbed Methane Proved Reserves...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Alaska (with Total Offshore) Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

368

,"Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Kansas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

369

,"North Louisiana Coalbed Methane Proved Reserves, Reserves Changes...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

370

,"Louisiana--South Onshore Coalbed Methane Proved Reserves (Billion...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

371

,"Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

372

,"Ohio Coalbed Methane Proved Reserves, Reserves Changes, and...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2010,"630...

373

,"Montana Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Montana Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

374

,"U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Extensions (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

375

,"Michigan Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

376

Ohio Coalbed Methane Proved Reserves Revision Increases (Billion...  

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

W Withheld to avoid disclosure of individual company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Reserves Revision Increases...

377

,"Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2010 ,"Release...

378

Ohio Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

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

Available; W Withheld to avoid disclosure of individual company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Reserves Adjustments...

379

,"Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

380

,"U.S. Coalbed Methane Proved Reserves New Field Discoveries...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves New Field Discoveries (Billion Cubic Feet)",1,"Annual",201...

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


381

,"Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Alabama Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

382

,"Kansas Coalbed Methane Proved Reserves, Reserves Changes, and...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Kansas Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

383

Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries...  

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

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

384

,"Louisiana--North Coalbed Methane Proved Reserves (Billion Cubic...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

385

,"NM, West Coalbed Methane Proved Reserves, Reserves Changes...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

386

WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS.  

E-Print Network (OSTI)

??WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS Applications of waterjeting to drill horizontal wells for the purpose of degassing coalbeds prior to mining… (more)

Funmilayo, Gbenga M.

2010-01-01T23:59:59.000Z

387

,"U.S. Coalbed Methane Production (Billion Cubic Feet)"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Production (Billion Cubic Feet)",1,"Annual",2013 ,"Release Date:","124...

388

,"Florida Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

389

,"U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic...

390

,"Utah Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Utah Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

391

,"West Virginia Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","West Virginia Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

392

,"New Mexico Coalbed Methane Proved Reserves, Reserves Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

393

,"Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

394

,"TX, RRC District 2 Onshore Coalbed Methane Proved Reserves...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

395

,"Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

396

,"U.S. Coalbed Methane Proved Reserves, Reserves Changes, and...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

397

,"U.S. Coalbed Methane Proved Reserves Acquisitions (Billion...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet)",1,"Annual",2013...

398

Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries...  

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

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

399

,"North Dakota Coalbed Methane Proved Reserves (Billion Cubic...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

400

,"Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

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


401

,"U.S. Coalbed Methane Proved Reserves Revision Increases (Billion...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet)",1,"Annual",2013...

402

,"U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet)",1,"Annual",2013...

403

,"Utah Coalbed Methane Proved Reserves, Reserves Changes, and...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Utah Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2013,"630...

404

,"TX, RRC District 10 Coalbed Methane Proved Reserves, Reserves...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

405

,"Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic...  

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

Coalbed Methane Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

406

,"TX, RRC District 4 Onshore Coalbed Methane Proved Reserves...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

407

,"NM, East Coalbed Methane Proved Reserves, Reserves Changes...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

408

,"TX, RRC District 3 Onshore Coalbed Methane Proved Reserves...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

409

,"Texas Coalbed Methane Proved Reserves, Reserves Changes, and...  

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

410

,"U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet)",1,"Annual",2013...

411

,"U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

412

Utah Coalbed Methane Proved Reserves New Reservoir Discoveries...  

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

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1...

413

,"West Virginia Coalbed Methane Proved Reserves (Billion Cubic...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","West Virginia Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

414

UPGRADING METHANE USING ULTRA-FAST THERMAL SWING ADSORPTION  

SciTech Connect

The purpose of this project is to design and demonstrate an approach to upgrade low-BTU methane streams from coal mines to pipeline-quality natural gas. The objective of Phase I of the project was to assess the feasibility of upgrading low-Btu methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys' modular microchannel process technology. The project is on schedule and under budget. For Task 1.1, the open literature, patent information, and vendor contacts were surveyed to identify adsorbent candidates for experimental validation and subsequent demonstration in an MPT-based ultra-fast TSA separation for methane upgrading. The leading candidates for preferential adsorption of methane over nitrogen are highly microporous carbons. A Molecular Gate{trademark} zeolite from Engelhard Corporation has emerged as a candidate. For Task 1.2, experimental evaluation of adsorbents was initiated, and data were collected on carbon (MGN-101) from PICA, Inc. This carbon demonstrated a preferential capacity for methane over nitrogen, as well as a reasonable thermal swing differential capacity for a 90% methane and 10% nitrogen mixture. A similar methane swing capacity at 2 psig was measured. The mixture composition is relevant because gob gas contains nearly 85% methane and must be purified to 97% methane for pipeline quality.

Anna Lee Tonkovich

2004-01-01T23:59:59.000Z

415

Presentations from June 6-7 2013 Methane Hydrates Advisory Meeting...  

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

June 6-7 2013 Methane Hydrates Advisory Meeting Presentations from June 6-7 2013 Methane Hydrates Advisory Meeting ConocoPhillips test results and data analysis Methane Hydrate...

416

Mechanistic studies of electron transfer, complex formation, C-H bond activation, and product binding in soluble methane monooxygenase  

E-Print Network (OSTI)

Chapter 1. Soluble Methane Monooxygenase: Activation of Dioxygen and Methane The mechanisms by which soluble methane monooxygenase uses dioxygen to convert methane selectively to methanol have come into sharp focus. Diverse ...

Kopp, Daniel Arthur

2003-01-01T23:59:59.000Z

417

Methane production using resin-wafer electrodeionization  

DOE Patents (OSTI)

The present invention provides an efficient method for creating natural gas including the anaerobic digestion of biomass to form biogas, and the electrodeionization of biogas to form natural gas and carbon dioxide using a resin-wafer deionization (RW-EDI) system. The method may be further modified to include a wastewater treatment system and can include a chemical conditioning/dewatering system after the anaerobic digestion system. The RW-EDI system, which includes a cathode and an anode, can either comprise at least one pair of wafers, each a basic and acidic wafer, or at least one wafer comprising of a basic portion and an acidic portion. A final embodiment of the RW-EDI system can include only one basic wafer for creating natural gas.

Snyder, Seth W; Lin, YuPo; Urgun-Demirtas, Meltem

2014-03-25T23:59:59.000Z

418

Calculation of the compressibility factor and thermodynamic properties for methane  

E-Print Network (OSTI)

to formulate these tables which are probably the most accurate to date. CHAPTER III EQUATIONS The Series Expansion For the present work a Berlin expansion was used in the form Z: PV/RT: Co + C)P + Csp + C3P + C~P + Csp where Ce = 1. 0 (2... capacity foliose directly from the results of Equations (9) and (10). Application of the definition (11) to these equations results in 5 6 Cp Cpo R i=1 n=l n~n+1 A Tp(pi 1) i i, n (12) and 5 6 R P P n~n+1 A. T Pi Pideal ~ L i i, n i=1 n=l (13) 14...

Dowling, Dennis William

2012-06-07T23:59:59.000Z

419

Effect of Sulfur Compounds and Higher Homologues of Methane on Hydrogen Cyanide Production by the Andrussow Method  

Science Journals Connector (OSTI)

The influence of sulfur compounds, higher homologues of methane on the parameters ofoxidative ammonolysis of methane was studied.

N. V. Trusov

2001-10-01T23:59:59.000Z

420

A systemic approach for dimensioning and designing anaerobic bio-digestion/energy generation biomass supply networks  

Science Journals Connector (OSTI)

Abstract Anaerobic bio-digestion/energy generation complexes using animal waste raw materials represent an important component of renewable energy initiatives and policies worldwide, and are significant contributors to broaden sustainability efforts. In such projects bio-power feasibility depends heavily on generation complex access to biomass which is of costly transportation. As a result, an important component of renewable energy planning is the optimization of a logistics system to guarantee low-cost access to animal waste. This access is a function of local characteristics including number and geographic location of organic waste sources, operating and maintenance costs of the generation facility, energy prices, and marginal contribution of biomass collected and delivered to the anaerobic bio-digestion unit. Because biomass exhibits high transportation costs per unit of energy ultimately generated, and because different types of biomass have different biogas-generating properties, design of the supply logistics system can be the determinant factor towards economic viability of energy generation from an anaerobic bio-digestion plant. Indeed, to address this problem it is helpful to consider the farms, the logistics system, the anaerobic bio-digestion plant, and the generation plant as subsystems in an integrated system. Additionally, the existence of an outlet for manure may allow farmers to significantly raise boundaries of one constraint they face, namely disposing of animal waste, therefore permitting increases in farm production capacity. This paper suggests and outlines a systematic methodology to address the design of such systems.

Joćo Neiva de Figueiredo; Sérgio Fernando Mayerle

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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

Crab digestive phospholipase: A new invertebrate member  

Science Journals Connector (OSTI)

Crab digestive phospholipase (CDPL) was purified from the hepatopancreas of Carcinus mediterraneus crabs. Homogeneous enzyme was obtained after two chromatography steps: anion exchange and size exclusion HPLC column. Homogeneous CDPL has a molecular mass of 14 kDa as determined by SDS/PAGE analysis. Unlike known digestive phospholipases like porcine PLA2 (PPPL), CDPL displayed its maximal activity at 50 °C and not at 37 °C. A specific activity of 40 U/mg for the purified CDPL was measured using PC as substrate under optimal conditions (pH 8 and 50 °C) in the presence of 8 mM sodium deoxycholate (NaDC) and 10 mM CaCl2. In contrast to PPPL, purified CDPL was completely inactivated at 60 °C. The N-terminal sequence was determined by automatic Edman degradation. No similarity between 12 N-terminal amino acid residues of CDPL was found with those of known digestive phospholipases. CDPL appears to be a new member of invertebrate phospholipases, and it is potentially useful for treat phospholipid-rich industrial effluents, or to synthesize useful chemical compounds which can be used in the food industry.

Slim Cherif; Abir Ben Bacha; Yassine Ben Ali; Habib Horchani; Wiem Rekik; Youssef Gargouri

2010-01-01T23:59:59.000Z

422

Method of digesting an explosive nitro compound  

DOE Patents (OSTI)

The present invention is a process wherein bleaching oxidants are used to digest explosive nitro compounds. The process has an excellent reaction rate for digesting explosives and operates under multivariate conditions. Reaction solutions may be aqueous, non-aqueous or a combination thereof, and can also be any pH, but preferably have a pH between 2 and 9. The temperature may be ambient as well as any temperature above which freezing of the solution would occur and below which any degradation of the bleaching oxidant would occur or below which any explosive reaction would be initiated. The pressure may be any pressure, but is preferably ambient or atmospheric, or a pressure above a vapor pressure of the aqueous solution to avoid boiling of the solution. Because the bleaching oxidant molecules are small, much smaller than an enzyme molecule for example, they can penetrate the microstructure of plastic explosives faster. The bleaching oxidants generate reactive hydroxyl radicals, which can destroy other organic contaminants, if necessary, along with digesting the explosive nitro compound.

Shah, Manish M. (Richland, WA)

2000-01-01T23:59:59.000Z

423

Exploiting coalbed methane and protecting the global environment  

SciTech Connect

The global climate change caused by greenhouse gases (GHGs) emission has received wide attention from all countries in the world. Global environmental protection as a common problem has confronted the human being. As a main component of coalbed methane, methane is an important factor influencing the production safety of coal mine and threatens the lives of miners. The recent research on environment science shows that methane is a very harmful GHG. Although methane gas has very little proportion in the GHGs emission and its stayed period is also very short, it has very obvious impact on the climate change. From the estimation, methane emission in the coal-mining process is only 10% of the total emission from human`s activities. As a clean energy, Methane has mature recovery technique before, during and after the process of mining. Thus, coalbed methane is the sole GHG generated in the human`s activities and being possible to be reclaimed and utilized. Compared with the global greenhouse effect of other GHGs emission abatement, coalbed methane emission abatement can be done in very low cost with many other benefits: (1) to protect global environment; (2) to improve obviously the safety of coal mine; and (3) to obtain a new kind of clean energy. Coal is the main energy in China, and coalbed contains very rich methane. According to the exploration result in recent years, about 30000{approximately}35000 billion m{sup 2} methane is contained in the coalbed below 2000 m in depth. China has formed a good development base in the field of reclamation and utilization of coalbed methane. The author hopes that wider international technical exchange and cooperation in the field will be carried out.

Yuheng, Gao

1996-12-31T23:59:59.000Z

424

Methane Steam Reforming in Hydrogen-permeable Membrane Reactor for Pure Hydrogen Production  

Science Journals Connector (OSTI)

Steam reforming of methane over a ruthenium catalyst has been carried ... hydrogen separation from the reaction mixture, the methane conversion significantly exceeds the equilibrium value, which ... an important ...

Yasuyuki Matsumura; Jianhua Tong

2008-12-01T23:59:59.000Z

425

Texas--RRC District 8A Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8A Coalbed Methane Proved Reserves,...

426

Texas--RRC District 8A Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 8A Coalbed Methane Proved...

427

Texas--RRC District 7C Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 7C Coalbed Methane Proved Reserves,...

428

Texas--RRC District 7B Coalbed Methane Proved Reserves (Billion...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 TX, RRC District 7B Coalbed Methane Proved...

429

Development of gas production type curves for horizontal wells in coalbed methane reservoirs.  

E-Print Network (OSTI)

??Coalbed methane is an unconventional gas resource that consists of methane production from coal seams .The unique difference between CBM and conventional gas reservoirs is… (more)

Nfonsam, Allen Ekahnzok.

2006-01-01T23:59:59.000Z

430

Texas--RRC District 7B Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

company data. Release Date: 1242014 Next Release Date: 12312015 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 7B Coalbed Methane Proved Reserves,...

431

E-Print Network 3.0 - atmospheric methane consumption Sample...  

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

Oxidation of Methane with Air in AC Electric Gas Discharge Summary: , and specific energy consumption. Methane and oxygen conversions increased with input power but...

432

Presentations from the March 27th - 28th Methane Hydrates Advisory...  

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

the March 27th - 28th Methane Hydrates Advisory Committee Meeting Presentations from the March 27th - 28th Methane Hydrates Advisory Committee Meeting International Gas Hydrate...

433

E-Print Network 3.0 - anthropogenic methane emissions Sample...  

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

regional assessments... and global lake methane emissions, contributing to the greenhouse effect, are poorly known. We developed... predictions of methane emissions from easily...

434

A ROBUST AUDIO FINGERPRINT'S BASED IDENTIFICATION METHOD An audio fingerprint is a small digest of an audio file  

E-Print Network (OSTI)

A ROBUST AUDIO FINGERPRINT'S BASED IDENTIFICATION METHOD ABSTRACT An audio fingerprint is a small digest of an audio file computed from its main perceptual properties. Like human fingerprints, audio fingerprints allow to identify an audio file among a set of candidates but does not allow to reĀ­ trieve any

Brun, Chez Luc

435

Methane Production from Acetate and Associated Methane Fluxes from Anoxic Coastal Sediments  

Science Journals Connector (OSTI)

...ORGANIC-RICH COASTAL MARINE BASIN .1. METHANE SEDIMENT-WATER...IRRIGATION IN CAPE LOOKOUT BIGHT, NORTH-CAROLINA, SCIENCE...sediments ofa small coastal basin on the Outer Banks ofNorth...site was Cape Lookout Bight, North Carolina, an organic-rich marine basin of approximately 2 km2...

FRANCIS J. SANSONE; CHRISTOPHER S. MARTENS

1981-02-13T23:59:59.000Z

436

Water production in enhanced coalbed methane operations  

Science Journals Connector (OSTI)

Coalbed methane (CBM) formations provides a considerable amount of the US natural gas production and have the potential of storing significant amounts of carbon dioxide (CO2) through enhanced gas recovery operations. Enhanced coalbed methane (ECBM) recovery by injection of CO2 or a mixture of CO2 and nitrogen (N2) has been proven to recover additional natural gas resources. However, since coalbeds are normally saturated with water and can be in communication with an aquifer, a large amount of water is often co-produced during the natural gas extraction. The conventional approach for CBM production relies on the reduction of the gas partial pressure in the coal seam. This can be accomplished by either pumping the formation water to the surface and/or by injecting gases such as N2 and CO2. Disposal of the produced water is an environmental challenge as harmful impurities must be removed by appropriate purification techniques. Consequently, a reduction of water production in CBM operations is desirable. In this paper we present a numerical investigation of the potential reduction in water production during ECBM operations that are commonly used to increase methane (CH4) recovery. We use a three-dimensional coalbed model with an aquifer located at the bottom to investigate the amounts of gas and water produced in ECBM operations per volume of coal seam as a function of aquifer strength and sorption characteristics including sorption induced strain. The amount of gas/water that is produced varies significantly depending on the aquifer strength and injection gas composition. We demonstrate that injection of CO2 and/or N2 in some settings reduces the water handling problem substantially. CBM is an important worldwide energy source with a large number of formations being excellent candidates for ECBM recovery processes. Our analysis of the interplay between coal characteristics, aquifer support and the resultant behavior in terms of gas/water production provides valuable input for optimization of future planning and operations.

M. Jamshidi; K. Jessen

2012-01-01T23:59:59.000Z

437

Storms, polar deposits and the methane cycle in Titan's atmosphere  

Science Journals Connector (OSTI)

...2004GL021415 . Lorenz, R.D , 2006The sand seas on Titan: Cassini RADAR...Stevenson1985Thermodynamics of clathrate hydrate at low and high pressures with...constituent, methane, exists as a gas, liquid and solid, and cycles...constituent, methane, exists as a gas, liquid and solid, and cycles...

2009-01-01T23:59:59.000Z

438

Development of a Series of National Coalbed Methane Databases  

E-Print Network (OSTI)

Development of a Series of National Coalbed Methane Databases Mohaghegh, S. D., Nunsavathu, U Growing Interest in Coalbed Methane Ā­ Elevated natural gas prices Ā­ Demand for clean energy sources DatabaseDatabase One Location Reservoir & Sorption Collection Ā­ 126 Coalbed Areas Ā­ 34 Parameters Ordered

Mohaghegh, Shahab

439

Rapid communication Mapping urban pipeline leaks: Methane leaks across Boston  

E-Print Network (OSTI)

Rapid communication Mapping urban pipeline leaks: Methane leaks across Boston Nathan G. Phillips a of methane (CH4) in the United States. To assess pipeline emissions across a major city, we mapped CH4 leaks signatures w20& lighter (m Ā¼ Ć?57.8&, Ć?1.6& s.e., n Ā¼ 8). Repairing leaky natural gas distribution systems

Jackson, Robert B.

440

Anaerobic Methane Oxidation in a Landfill-Leachate Plume  

E-Print Network (OSTI)

Anaerobic Methane Oxidation in a Landfill-Leachate Plume E T H A N L . G R O S S M A N , * , L U I Landfill, OK, provides an excellent natural laboratory for the study of anaerobicprocessesimpactinglandfill enrichment indicated that 80-90% of the original landfill methane was oxidized over the 210-m transect. First

Grossman, Ethan L.

Note: This page contains sample records for the topic "methane digester property" 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.


441

Photofragment imaging of methane Albert J. R. Heck  

E-Print Network (OSTI)

on CH4. Ā© 1996 American Institute of Physics. S0021-9606 96 03810-3 INTRODUCTION Knowledge about the photo dissociation pathways of the methane molecule is of fundamental importance as it is of central, the photochemistry of methane in the atmosphere is mostly driven by intense solar atomic emission lines

Zare, Richard N.

442

The thermal decomposition of methane in a tubular reactor  

SciTech Connect

The reaction rate of methane decomposition using a tubular reactor having a 1 inch inside diameter with an 8 foot long heated zone was investigated in the temperature range of 700 to 900 C with pressures ranging from 28.2 to 56.1 atm. Representing the rate by a conventional model, {minus}dC{sub CH4}/dt= k1 C{sub CH4} {minus}k2 C{sub H2}{sup 2}, the rate constant k1 for methane decomposition was determined. The activation energy, 31.3 kcal/mol, calculated by an Arrhenius Plot was lower than for previously published results for methane decomposition. This result indicates that submicron particles found in the reactor adhere to the inside of the reactor and these submicron high surface area carbon particles tend to catalyze the methane decomposition. The rate constant has been found to be approximately constant at 900 C with pressure range cited above. The rate of methane decomposition increases with methane partial pressure in first-order. The rate of the methane decomposition is favored by higher temperatures and pressures while the thermochemical equilibrium of methane decomposition is favored by lower pressures. 8 refs., 7 figs., 2 tabs.

Kobayashi, Atsushi; Steinberg, M.

1992-01-01T23:59:59.000Z

443

Methane Hydrate Production Technologies to be Tested on Alaska's North  

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

Methane Hydrate Production Technologies to be Tested on Alaska's Methane Hydrate Production Technologies to be Tested on Alaska's North Slope Methane Hydrate Production Technologies to be Tested on Alaska's North Slope October 24, 2011 - 1:00pm Addthis Washington, DC - The U.S. Department of Energy, the Japan Oil, Gas and Metals National Corporation, and ConocoPhillips will work together to test innovative technologies for producing methane gas from hydrate deposits on the Alaska North Slope. The collaborative testing will take place under the auspices of a Statement of Intent for Cooperation in Methane Hydrates signed in 2008 and extended in 2011 by DOE and Japan's Ministry of Economy, Trade, and Industry. The production tests are the next step in both U.S. and Japanese national efforts to evaluate the response of gas hydrate reservoirs to alternative

444

Energy Department Advances Research on Methane Hydrates - the World's  

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

Research on Methane Hydrates - the Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource August 31, 2012 - 1:00pm Addthis Washington, DC - The Energy Department today announced the selection of 14 new research projects across 11 states that will be a part of an expanding portfolio of projects designed to increase our understanding of methane hydrates' potential as a future energy supply. Methane hydrates are 3D ice-lattice structures with natural gas locked inside, and are found both onshore and offshore - including under the Arctic permafrost and in ocean sediments along nearly every continental shelf in the world. Today's projects build on the completion of a successful, unprecedented test

445

EA-1157: Methyl Chloride via Oxyhydrochlorination of Methane: A Building  

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

57: Methyl Chloride via Oxyhydrochlorination of Methane: A 57: Methyl Chloride via Oxyhydrochlorination of Methane: A Building Black for Chemicals and Fuels from Natural Gas, Carrollton, Kentucky EA-1157: Methyl Chloride via Oxyhydrochlorination of Methane: A Building Black for Chemicals and Fuels from Natural Gas, Carrollton, Kentucky SUMMARY This EA evaluates the environmental impacts for the proposal to advance Oxyhydrochlorination technology to an integrated engineering-scale process. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD September 27, 1996 EA-1157: Finding of No Significant Impact Methyl Chloride via Oxyhydrochlorination of Methane: A Building Black for Chemicals and Fuels from Natural Gas September 27, 1996 EA-1157: Final Environmental Assessment Methyl Chloride via Oxyhydrochlorination of Methane: A Building Black for

446

Energy Department Advances Research on Methane Hydrates - the World's  

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

Energy Department Advances Research on Methane Hydrates - the Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource Energy Department Advances Research on Methane Hydrates - the World's Largest Untapped Fossil Energy Resource August 31, 2012 - 1:20pm Addthis News Media Contact (202) 586-4940 WASHINGTON, D.C. - The Energy Department today announced the selection of 14 new research projects across 11 states that will be a part of an expanding portfolio of projects designed to increase our understanding of methane hydrates' potential as a future energy supply. Methane hydrates are 3D ice-lattice structures with natural gas locked inside, and are found both onshore and offshore - including under the Arctic permafrost and in ocean sediments along nearly every continental shelf in the world.

447

DOE Announces $2 Million Funding for Methane Hydrates Projects | Department  

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

DOE Announces $2 Million Funding for Methane Hydrates Projects DOE Announces $2 Million Funding for Methane Hydrates Projects DOE Announces $2 Million Funding for Methane Hydrates Projects November 7, 2005 - 12:43pm Addthis Seeks to Unlock World's Biggest Potential Source of "Ice That Burns" WASHINGTON, DC - The Department of Energy (DOE) today announced a total of $2 million in funding to five research projects that will assess the energy potential, safety, and environmental aspects of methane hydrate exploration and development. Termed the "ice that burns," methane hydrates are crystalline solids that release a flammable gas when melted. They are considered the Earth's biggest potential source of hydrocarbon energy and could be a key element in meeting natural gas demand in the United States,

448

A STUDY ON SPHERICAL EXPANDING FLAME SPEEDS OF METHANE, ETHANE, AND METHANE/ETHANE MIXTURES AT ELEVATED PRESSURES  

E-Print Network (OSTI)

High-pressure experiments and chemical kinetics modeling were performed for laminar spherically expanding flames for methane/air, ethane/air, methane/ethane/air and propane/air mixtures at pressures between 1 and 10 atm and equivalence ratios...

De Vries, Jaap

2010-07-14T23:59:59.000Z

449

NETL: Methane Hydrates - DOE/NETL Projects  

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

Gas Hydrate Research in Deep Sea Sediments - New Zealand Task Gas Hydrate Research in Deep Sea Sediments - New Zealand Task DE-AI26-06NT42878 Goal The objective of this research is to determine the extent and dynamics of gas hydrate deposits and their relation to areas of focused fluid flux at and beneath the seafloor. Specific objectives include: a). Refine geophysical, geochemical and microbiological technologies for prospecting hydrate distribution and content; b). Contribute to establishing high-priority geographical regions of prospective interest, in terms of methane volume estimates; c). Prediction of environmental effects and geologic risks at the continental margin associated to the natural resource occurrence and resource exploitation; and d). Expand understanding of the biogeochemical parameters and associated microbial community diversity in shallow sediments that influence the porewater sulfate gradient observed through anaerobic oxidation of methane. To accomplish these objectives, the Naval Research Laboratory (NRL) collaborated with New ZealandĀ’s Institute of Geological and Nuclear Sciences (GNS) in a research cruise off the coast of New Zealand. NRL has conducted similar research cruises off the west coast and east coast of the United States, in the Gulf of Mexico and off the coast of Chile.

450

Kinetics of methanation on nickel catalysts  

SciTech Connect

Extensive steady-state and transient measurements of the disproportionation of carbon monoxide, the hydrogenation of deposited carbon, and methanation of carbon monoxide were performed over 2 and 10% nickel on silica support. The results indicated that the methanation of carbon monoxide involves competitively adsorbed species; that the reaction is nearly zero order in carbon monoxide at 0.1-0.5 atm CO and 1 atm H/sub 2/, but negative at higher CO partial pressures and that it becomes less negative with increasing temperature or increasing hydrogen pressure; and that the reaction order with respect to hydrogen changes from 0.5 to 1.0 with increasing CO pressure and decreasing H/sub 2/ pressure. A reaction mechanism is proposed which consists of the molecular adsorption of CO, the dissociative adsorption of H/sub 2/, dissociation of the surface CO species, and reaction of two adsorbed hydrogen atoms with the oxygen; and a multistep hydrogenation and desorption process for the adsorbed carbon. The dissociation and reaction of adsorbed CO is probably the rate-limiting step. The kinetic behavior is best represented with the assumption of a heterogeneous catalyst surface, containing three types of sites of widely varying activity.

Ho, S.V.; Harriott, P.

1980-08-01T23:59:59.000Z

451

Using Carbon Dioxide to Enhance Recovery of Methane from Gas Hydrate Reservoirs: Final Summary Report  

SciTech Connect

Carbon dioxide sequestration coupled with hydrocarbon resource recovery is often economically attractive. Use of CO2 for enhanced recovery of oil, conventional natural gas, and coal-bed methane are in various stages of common practice. In this report, we discuss a new technique utilizing CO2 for enhanced recovery of an unconventional but potentially very important source of natural gas, gas hydrate. We have focused our attention on the Alaska North Slope where approximately 640 Tcf of natural gas reserves in the form of gas hydrate have been identified. Alaska is also unique in that potential future CO2 sources are nearby, and petroleum infrastructure exists or is being planned that could bring the produced gas to market or for use locally. The EGHR (Enhanced Gas Hydrate Recovery) concept takes advantage of the physical and thermodynamic properties of mixtures in the H2O-CO2 system combined with controlled multiphase flow, heat, and mass transport processes in hydrate-bearing porous media. A chemical-free method is used to deliver a LCO2-Lw microemulsion into the gas hydrate bearing porous medium. The microemulsion is injected at a temperature higher than the stability point of methane hydrate, which upon contacting the methane hydrate decomposes its crystalline lattice and releases the enclathrated gas. Small scale column experiments show injection of the emulsion into a CH4 hydrate rich sand results in the release of CH4 gas and the formation of CO2 hydrate

McGrail, B. Peter; Schaef, Herbert T.; White, Mark D.; Zhu, Tao; Kulkarni, Abhijeet S.; Hunter, Robert B.; Patil, Shirish L.; Owen, Antionette T.; Martin, P F.

2007-09-01T23:59:59.000Z

452

Cu- and Ag-modified cerium oxide catalysts for methane oxidation  

SciTech Connect

The catalytic activity of nanocrystalline doped ceria and Cu- and Ag-modified ceria for the complete oxidation of methane was studied in this work. The catalyst structure was studied by X-ray diffraction (XRD) and related to the availability of low-temperature oxygen species. Selected samples were also analyzed by STEM/EDX, HRTEM, and XPS. Temperature-programmed reduction (TPR) by H{sub 2} and CH{sub 4}, as well as oxygen chemisorption, measurements were used to characterize the different oxygen species present on the catalyst. La and Zr were used as dopants to modify the crystal size and reduction properties of ceria. Enhanced activity for the complete oxidation of methane is discussed in terms of ceria reducibility, crystal size, and formation of oxygen defects at the surface (extrinsic oxygen vacancies). Addition of transition metal oxides (CuO) or transition metals (Ag) improves the low-temperature oxidation activity of cerium oxide. The interaction of ceria with Ag and CuO is a strong function of the crystal size of ceria. In the presence of the transition metal or metal oxide, a small crystal size of ceria favors the formation of highly reducible oxygen species and enhances the methane oxidation activity.

Kundakovic, L.; Flytzani-Stephanopoulis, M. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering] [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering

1998-10-01T23:59:59.000Z

453

A review on recent advances in the numerical simulation for coalbed-methane-recovery process  

SciTech Connect

The recent advances in numerical simulation for primary coalbed methane (CBM) recovery and enhanced coalbed-methane recovery (ECBMR) processes are reviewed, primarily focusing on the progress that has occurred since the late 1980s. Two major issues regarding the numerical modeling will be discussed in this review: first, multicomponent gas transport in in-situ bulk coal and, second, changes of coal properties during methane (CH{sub 4}) production. For the former issues, a detailed review of more recent advances in modeling gas and water transport within a coal matrix is presented. Further, various factors influencing gas diffusion through the coal matrix will be highlighted as well, such as pore structure, concentration and pressure, and water effects. An ongoing bottleneck for evaluating total mass transport rate is developing a reasonable representation of multiscale pore space that considers coal type and rank. Moreover, few efforts have been concerned with modeling water-flow behavior in the coal matrix and its effects on CH{sub 4} production and on the exchange of carbon dioxide (CO{sub 2}) and CH{sub 4}. As for the second issue, theoretical coupled fluid-flow and geomechanical models have been proposed to describe the evolution of pore structure during CH{sub 4} production, instead of traditional empirical equations. However, there is currently no effective coupled model for engineering applications. Finally, perspectives on developing suitable simulation models for CBM production and for predicting CO{sub 2}-sequestration ECBMR are suggested.

Wei, X.R.; Wang, G.X.; Massarotto, P.; Golding, S.D.; Rudolph, V. [University of Queensland, Brisbane, Qld. (Australia)

2007-12-15T23:59:59.000Z

454

Field-project designs for carbon dioxide sequestration and enhanced coalbed methane production  

SciTech Connect

Worldwide concerns about global warming and possible contributions to it from anthropogenic carbon dioxide have become important during the past several years. Coal seams may make excellent candidates for CO{sub 2} sequestration; coal-seam sequestration could enhance methane production and improve sequestration economics. Reservoir-simulation computations are an important component of any engineering design before carbon dioxide is injected underground. We have performed such simulations for a hypothetical pilot-scale project in representative coal seams. In these simulations we assume four horizontal production wells that form a square, that is, two wells drilled at right angles to each other forming two sides of a square, with another pair of horizontal wells similarly drilled to form the other two sides. Four shorter horizontal wells are drilled from a vertical well at the center of the square, forming two straight lines orthogonal to each other. By modifying coal properties, especially sorption rate, we have approximated different types of coals. By varying operational parameters, such as injector length, injection well pressure, time to injection, and production well pressure, we can evaluate different production schemes to determine an optimum for each coal type. Any optimization requires considering a tradeoff between total CO{sub 2} sequestered and the rate of methane production. Values of total CO{sub 2} sequestered and methane produced are presented for multiple coal types and different operational designs. 30 refs., 11 figs., 1 tab.

W. Neal Sams; Grant Bromhal; Sinisha Jikich; Turgay Ertekin; Duane H. Smith [EG& amp; G Technical Services, Morgantown, WV (United States). National Energy Technology Laboratory

2005-12-01T23:59:59.000Z

455

Index to the Digest of Green Reports and Studies Complete "Green"  

E-Print Network (OSTI)

Index to the Digest of Green Reports and Studies Complete "Green" Publication Title Author and Organization Status of Digest Summary Web Address of Complete Publication Link to Green Digest Summary 1 of 25.labormarketinfo.edd.ca.gov/conte ntpub/GreenDigest/Bay-Region-Solar- Industry-Workforce-Study.pdf #12;Index to the Digest of Green

456

The mucosal/epithelial barrier disruption and transport of pancreatic digestive enzymes in early stages of intestinal ischemia  

E-Print Network (OSTI)

Allows Entry of Digestive Enzymes during Early Periods ofas Barrier to Digestive Enzymes in the Ischemic Rat SmallAllows Entry of Digestive Enzymes during Early Periods of

Chang, Marisol

2012-01-01T23:59:59.000Z

457

List of Anaerobic Digestion Incentives | Open Energy Information  

Open Energy Info (EERE)

Anaerobic Digestion Incentives Anaerobic Digestion Incentives Jump to: navigation, search The following contains the list of 285 Anaerobic Digestion Incentives. CSV (rows 1 - 285) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Advanced Energy Job Stimulus Program (Ohio) Industry Recruitment/Support Ohio Commercial Fed. Government Industrial Institutional Local Government Nonprofit State Government

458

aerobic sludge digestion: Topics by E-print Network  

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

of organic wastes) and digestion (anaerobic treatment of organic wastes combined with biogas production) are important waste management strategies with increasing significance...

459

Enhanced Biomass Digestion with Wood Wasp Bacteria - Energy Innovation...  

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

Enhanced Biomass Digestion with Wood Wasp Bacteria Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Plant biomass represents a...

460

Commercialization of Anaerobic Contact Process for Anaerobic Digestion of Algae.  

E-Print Network (OSTI)

??The commercialization of anaerobic contact process for the digestion of algal biomass has been shown to be feasible on a technical and economic basis. The… (more)

Andlay, Gunjan

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane digester property" 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.


461

Anaerobic Digestion Optimization for Enhanced Renewable Biomethane Production.  

E-Print Network (OSTI)

??The scope of this research project was to operate suspended growth, continuous stirred tank reactor (CSTR) anaerobic digesters at the bench-scale level to evaluate improved… (more)

Stover, Ted Ross

2011-01-01T23:59:59.000Z

462

Effects of metals on {alpha}-amylase activity in the digestive gland of the green mussel, Perna viridis L.  

SciTech Connect

A number of digestive enzymes in the green mussel, Perna viridis L., have been reported, and {alpha}-amylase is believed to have a higher activity than the others. Small plankton, on which the green mussel feeds, may supply plenty of starch and glycogen. They may be an important source of nutrients for the green mussel and the ability of the latter to make good use of them depends mainly on the activities of amylase. The effect of heavy metals on amylase activity is also important as the ability of the mussel`s digestive gland to accumulate these metals is well known. High concentrations of heavy metals, especially lead, have been observed in the water around Singapore. The in vitro inhibition of some metals on the activities of digestive enzymes from the green mussel has been observed, but kinetic properties of the inhibition and the in vivo inhibition of the heavy metals on digestive enzymes are little understood. In the present study, in vitro inhibition of four metals (Pb, Cd, Zn and Hg) on the activity of {alpha}-amylase from the digestive gland of the green mussel will be compared. Their effects on the K{sub M} and V{sub max} values of {alpha}-amylase will also be compared. Finally, lead is either added to the food or water, to see how it affects the activity of {alpha}-amylase and how this effect acts in combination with starvation. 12 refs., 3 figs., 3 tabs.

Yan, T.; Teo, L.H.; Sin, Y.M. [National Univ. of Singapore (Singapore)] [National Univ. of Singapore (Singapore)

1996-04-01T23:59:59.000Z

463

Batch load anaerobic digestion of dairy manure  

E-Print Network (OSTI)

flask. Influent was added through a funnel in a rubber stopper in the top of the flask. The flask was kept in a water bath to maintain the optimum temperature of 32 C, 0 A liquid displacement system was used to collect the biogas and measure.... Biogas production was measured with a Rockwell No, 175 S Test Meter. Electrical energy input to the system was measured with a watt-hour meter. The energy required for digester heating was determined by the time required to expend the propane in sn...

Egg, Richard P

2012-06-07T23:59:59.000Z

464

Quantitative gas-chromatographische Simultanbestimmung von Wasserstoff, Methan, Äthan und Äthylen  

Science Journals Connector (OSTI)

Die quantitative gas-chromatographische Bestimmung von Wasserstoff, Methan, Äthan und Äthylen führt bei Verwendung einer...

H. W. Dürbeck

465

EFFECTS OF WATER SPRAYS AND SCRUBBER EXHAUST ON FACE METHANE CONCENTRATIONS  

E-Print Network (OSTI)

methane levels. KEYWORDS Ventilation, water sprays, methane, coal mining, dust scrubber INTRODUCTIONChapter 65 EFFECTS OF WATER SPRAYS AND SCRUBBER EXHAUST ON FACE METHANE CONCENTRATIONS Ch.D. Taylor-mounted scrubber and water sprays can reduced methane levels at the face. The current research was conducted

Saylor, John R.

466

Global methane emissions from landfills: New methodology and annual estimates 19801996  

E-Print Network (OSTI)

Change: Instruments and techniques; KEYWORDS: landfill, landfill gas, methane emissions, methanotrophy

467

Research on Methane-Electricity-Heatpump System Model in Cold Area  

Science Journals Connector (OSTI)

The heat energy loss of methane liquid is the most important reason for low temperature of methane biochemical reaction in cold area by energy-flow analysis. The heat energy recovery of methane liquid can build a self-energizing system. Vegetable greenhouses ... Keywords: cold area, self-energizing, methane, heat pump, model

Zhang Chenghu; Pan Yawen; Ma Fang; Sun Dexing; Qiu Shan

2011-01-01T23:59:59.000Z

468

The Study of Two Stages Anaerobic Digestion Application and Suitable Bio-Film as an Effort to Improve Bio-Gas Productivity from Jatropha Curcas Linn Capsule Husk  

Science Journals Connector (OSTI)

Abstract The conversion program from kerosene to LPG in Indonesia has positive impact on saving budget of fuel subsidized. However, the program does not only depend on LPG supply from overseas but also inadvisable related to the LPG availability in the world. Bio-gas is renewable energy which categorized as modern cooking oil. This gaseous bio- fuel is feasible in Indonesia due to plenty of bio-gas resources such as bio-mass and waste, simple technology, supporting tropical climate on bio-gas process, no food competition on material supply, minimizing global warming, reducing water pollution and producing organic fertilizer. Some series of study are conducted on dried Jatropha curcas Linn. capsule husk (JCL-CH) as bio-gas feedstock. The objective of the study is to create technology for managing JCL integrally according to bio-refinery principle. This paper will present two studies, JCL-CH performance in single stage digester compared with two stages digester in laboratory and palm fiber compared with glass wool as bio-film/bio-carrier in methanogenesis reactor. The studies were conducted in Research Laboratory PT. Bumimas Ekapersada, Bekasi, West Java from March until May 2012. A liter of glass bottle as digester, arranged in Randomized Complete Design, three replications per treatment placed in 32 °C water bath. The bio-gas feedstock was put continuously with Organic Loading Rate – OLR or concentration 1: 12 in single stage compared with 1: 12 and 1: 8 in two stages. The observed parameters were pH, temperature, bio-gas volume, methane concentration, volatile solid and acetic acid concentration. Bio-gas volume was measured by water displacement method and methane concentration was measured by gas chromatography. T-test was used for statistical analysis. The studies showed that two stages digester more efficient since it can increase methane concentration and bio-gas volume/gram VS. The bio-gas volume increase 63.83% in OLR 1: 8. Glass wool was more effective as bio-film carrier compared with palm fiber.

Praptiningsih G. Adinurani; Tony Liwang; Salafudin; Leopold O. Nelwan; Yosephianus Sakri; Satriyo K. Wahono; Roy Hendroko

2013-01-01T23:59:59.000Z

469

NETL: Methane Hydrates - DOE/NETL Projects - Controls On Methane Expulsion  

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

Controls On Methane Expulsion During Melting Of Natural Gas Hydrate Systems Last Reviewed 12/24/2013 Controls On Methane Expulsion During Melting Of Natural Gas Hydrate Systems Last Reviewed 12/24/2013 DE-FE0010406 Goal The project goal is to predict, given characteristic climate-induced temperature change, the conditions under which gas will be expelled from existing accumulations of gas hydrate into the shallow ocean or directly to the atmosphere. When those conditions are met, the fraction of the gas accumulation that escapes and the rate of escape shall be quantified. The predictions shall be applicable in Arctic regions and in gas hydrate systems at the updip limit of the stability zone on continental margins. The behavior shall be explored in response to both longer term changes in sea level (e.g., twenty-thousand years) and shorter term due to atmospheric

470

Preliminary resource assessment of coalbed methane in the United States  

SciTech Connect

Preliminary results of the DOE Methane Recovery from Coalbeds Project reveal that many of the coal regions in the United States have significant volumes of coalbed methane. These results show that 45 cooperative wells drilled to date have helped to update the estimates of methane in the various coal regions. The most promising coal region is in the Green River Basin where preliminary estimates show that the methane potential may be over 23 trillion cubic feet. Another area of considerable interest is in the Arkoma Basin where the methane content of coal samples ranged from 200 to 400 cubic feet per ton (cf/ton) of coal. The methane estimte in this basin is between 1.6 to 3.6 trillion cubic feet. The Piceance Creek coal region is an area presently generating considerable interest and industry activity. The methane content of the coal samples extracted from this basin averaged over 100 cf/ton. The Northern Appalachian region also shows considerable promise.

Not Available

1981-04-01T23:59:59.000Z

471

Methane emission by bubbling from Gatun Lake, Panama  

SciTech Connect

We studied methane emission by bubbling from Gatun Lake, Panama, at water depths of less than 1 m to about 10 m. Gas bubbles were collected in floating traps deployed during 12- to 60-hour observation periods. Comparison of floating traps and floating chambers showed that about 98% of methane emission occurred by bubbling and only 2% occurred by diffusion. Average methane concentration of bubbles at our sites varied from 67% to 77%. Methane emission by bubbling occurred episodically, with greatest rates primarily between the hours of 0800 and 1400 LT. Events appear to be triggered by wind. The flux of methane associated with bubbling was strongly anticorrelated with water depth. Seasonal changes in water depth caused seasonal variation of methane emission. Bubble methane fluxes through the lake surface into the atmosphere measured during 24-hour intervals were least (10-200 mg m{sup -2} d{sup -1}) at deeper sites (>7 m) and greatest (300-2000 mg m{sup -2} d{sup -1}) at shallow sites (<2 m). 37 refs., 11 figs., 5 tabs.

Keller, M. [National Center for Atmospheric Research, Boulder, CO (United States)] [National Center for Atmospheric Research, Boulder, CO (United States); Stallard, R.F. [Geological Survey, Denver, CO (United States)] [Geological Survey, Denver, CO (United States)

1994-04-20T23:59:59.000Z

472

Methane hydrate formation and dissociation in a partially saturated sand  

SciTech Connect

To predict the behavior of hydrate-bearing sediments and the economic extractability of natural gas from reservoirs containing gas hydrates, we need reservoir simulators that properly represent the processes that occur, as well as accurate parameters. Several codes are available that represent some or all of the expected processes, and values for some parameters are available. Where values are unavailable, modelers have used estimation techniques to help with their predictions. Although some of these techniques are well respected, measurements are needed in many cases to verify the parameters. We have performed a series of experiments in a partially water saturated silica sand sample. The series included methane hydrate formation, and dissociation by both thermal stimulation and depressurization. The sample was 7.6 cm in diameter and 25 cm in length. In addition to measuring the system pressure and temperatures at four locations in the sample, we measured local density within the sample using x-ray computed tomography. Our goals in performing the experiment were to gather information for estimating thermal properties of the medium and to examine nonequilibrium processes.

Kneafsey, Timothy J.; Tomutsa, Liviu; Taylor, Charles E.; Gupta, Arvind; Moridis, George; Freifeld, Barry; Seol, Yongkoo

2004-11-24T23:59:59.000Z

473

Landfill Methane Project Development Handbook | Open Energy Information  

Open Energy Info (EERE)

Landfill Methane Project Development Handbook Landfill Methane Project Development Handbook Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Landfill Methane Project Development Handbook Agency/Company /Organization: United States Environmental Protection Agency Sector: Climate, Energy Focus Area: Biomass, - Landfill Gas Phase: Determine Baseline, Evaluate Options, Get Feedback Resource Type: Guide/manual User Interface: Website Website: www.epa.gov/lmop/publications-tools/handbook.html Cost: Free References: Project Development Handbook[1] The handbook describes the process of implementing a waste-to-energy landfill gas project. Overview "Approximately 250 million tons of solid waste was generated in the United States in 2008 with 54 percent deposited in municipal solid waste (MSW)

474

Coalbed methane production potential in U. S. basins  

SciTech Connect

The major emphasis of the U.S. DOE's coalbed methane research has been on estimating the magnitude of the resource and developing systems for recovery. Methane resource estimates for 16 basins show that the greatest potential is in the Piceance, Northern Appalachian, Central Appalachian, Powder River, and Greater Green River coal basins. Small, high-potential target areas have been selected for in-depth analysis of the resource. Industry interest is greatest in the Warrior, San Juan, Piceance, Raton Mesa, and Northern and Central Appalachian basins. Production curves for several coalbed methane wells in these basins are included.

Byer, C.W.; Mroz, T.H.; Covatch, G.L.

1987-07-01T23:59:59.000Z

475

Nickel Catalysts Supported on Barium Hexaaluminate for Enhanced CO Methanation  

Science Journals Connector (OSTI)

(4, 5) Since Sabatier and Senderens discovered that some metals such as Ni, Ru, Rh, Pt, Fe, and Co could be used in the methanation reaction in 1902,(6) many methanation catalysts have been developed. ... In short, although Ni/Al2O3 catalysts have been extensively explored, their thermal stability and resistance to carbon deposition still need to be improved. ... Meanwhile, the catalyst coatings on the walls of micro-channel reactor showed high activity and stability, having the excellent catalytic performance for methanation reaction in micro-channel reactors and the reliability in long-term use as well. ...

Jiajian Gao; Chunmiao Jia; Jing Li; Fangna Gu; Guangwen Xu; Ziyi Zhong; Fabing Su

2012-07-16T23:59:59.000Z

476

Electronic stucture of methane hydrate studied by Compton scattering  

Science Journals Connector (OSTI)

High-resolution Compton scattering spectra of methane, methane hydrate, and ice were measured using incident photon energy of 56.4keV at beamline ID15B of the European Synchrotron Radiation Facility. The experimental Compton profiles are compared to calculations employing density-functional theory using model atomic clusters. The hydrate has a cagelike structure built up from water molecules and the related Compton profile is observed to change apparently when compared to hexagonal ice. Furthermore, the influence of the guest-host interactions between the methane molecules and the water molecules of the cages on the Compton profile is discussed.

C. Sternemann; S. Huotari; M. Hakala; M. Paulus; M. Volmer; C. Gutt; T. Buslaps; N. Hiraoka; D. D. Klug; K. Hämäläinen; M. Tolan; J. S. Tse

2006-05-03T23:59:59.000Z

477

US EPA Landfill Methane Outreach Program | Open Energy Information  

Open Energy Info (EERE)

Landfill Methane Outreach Program Landfill Methane Outreach Program Jump to: navigation, search Name US EPA Landfill Methane Outreach Program Agency/Company /Organization United States Environmental Protection Agency Sector Energy, Land Focus Area Biomass Topics Policies/deployment programs, Resource assessment, Background analysis Resource Type Software/modeling tools, Workshop Website http://www.epa.gov/lmop/intern Country China, Ecuador, Mexico, Philippines, Thailand, Ukraine, Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama Eastern Asia, South America, Central America, South-Eastern Asia, South-Eastern Asia, Eastern Europe, Central America, Central America, Central America, Central America, Central America, Central America, Central America References LMOP[1]

478

NETL: Methane Hydrates - DOE/NETL Projects  

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

Numerical Simulation Last Reviewed 3/8/2013 Numerical Simulation Last Reviewed 3/8/2013 Project Goal The goal of NETL's gas hydrate numerical simulation studies is to obtain pertinent, high-quality information on the behavior of gas hydrates in their natural environment under either production (methane gas extraction) or climate change scenarios. This research is closely linked with NETL's experimental and field studies programs to ensure the validity of input datasets and scenarios. Project Performers Brian Anderson, NETL/RUA Fellow (West Virginia University) Hema Siriwardane, NETL/RUA Fellow (West Virginia University) Eugene Myshakin, NETL/URS Project Locations National Energy Technology Laboratory, Pittsburgh PA, and Morgantown WV West Virginia University, Morgantown, WV Background Field-scale hydrate production tests rely heavily on reservoir-scale

479

NETL: Methane Hydrates - DOE/NETL Projects  

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

Heat flow and gas hydrates on the continental margin of India Last Reviewed 12/15/2011 Heat flow and gas hydrates on the continental margin of India Last Reviewed 12/15/2011 DE-NT0005669 Goal The goals of this project are to construct maps of apparent and residual heat flow through the western continental margin of India and to investigate the relationship of residual heat flow anomalies to fluid flow and gas hydrate distribution in the subsurface. Performer Oregon State University, College of Oceanic and Atmospheric Science, Corvallis, OR 97331 Map of the four regions sampled during NGHP Expedition 01 Map of the four regions sampled during NGHP Expedition 01 Background Gas hydrate distribution in sediments depends on methane supply, which in turn depends on fluid flow. When drilling data are available to calibrate seismic observations of the base of the gas hydrate stability zone (GHSZ),

480

NETL: Methane Hydrates - ANS Research Project  

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

Well - Location Maps Well - Location Maps Maps of Prospect The Mt. Elbert prospect is located within the Milne Point Unit on AlaskaĀ’s North Slope. The Milne Point field, one of a number of distinct oil fields on the North Slope, extends offshore into the Beaufort Sea and is situated north of the large Kuparuk Field and northwest of the well known Prudhoe Bay Field. Map showing project location Map showing Milne Point Unit on AlaskaĀ’s North Slope The work done under the Ā“Alaska North Slope Gas Hydrate Reservoir CharacterizationĀ” project has resulted in a characterization of two large prospective methane hydrate accumulations (or trends); the Eileen Trend, which underlies but extends well beyond the Milne Point field, and the Tarn Trend to the west of the Kuparuk Field.

Note: This page contains sample records for the topic "methane digester property" 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

NETL: Methane Hydrates - DOE/NETL Projects  

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

Gathering, Processing and Evaluating Seismic and Physical Data on Gas Hydrates in the Gulf of Mexico Last Reviewed 02/05/2010 Gathering, Processing and Evaluating Seismic and Physical Data on Gas Hydrates in the Gulf of Mexico Last Reviewed 02/05/2010 DE-AT26-97FT34343 photo of piston core apparatus prior to being dropped Piston core apparatus with 6-ton weight prior to being dropped Photo courtesy USGS Goal The goal of the project is to characterize hydrates in the Gulf of Mexico (GOM) and further develop field techniques for characterizing hydrates. Performer US Geological Survey, Woods Hole Field Center Location Woods Hole Massachusetts Background Oceanic methane hydrates are a major emerging research topic spanning energy resource issues, global climate change, seafloor stability, ocean acoustics, impact on deep marine biota, and a number of special topics. Recent developments in the last five years have both broadened and deepened

482

Performance tests for steam methane reformers  

SciTech Connect

Most of the synthesis gas plants in operation in the United States for production of hydrogen, carbon monoxide, methanol, and ammonia use steam methane reforming (SMR). Economic projections indicate that the SMR plant may continue to be the most favorable process choice through the 1980s or until partial oxidation or coal gasification processes are technically proven. The complexity of an efficiently designed SMR plant for production of these chemicals requires a thorough understanding of many unit operations to correctly evaluate the performance of an operating plant. Air Products and Chemicals, Inc. (APCI) owns and operates various types of SMR plants for production of hydrogen and carbon monoxide gases for pipe line sales, liquid hydrogen for merchant sale, methanol and ammonia. Over the past few years, APCI has developed guidelines and procedures for plant performance tests done at its major SMR plants. This article documents the plant test procedure used in conducting onsite SMR plant performance tests.

Wang, S.I.; DiMartino, S.P.; Patel, N.M.; Smith, D.D.

1982-08-01T23:59:59.000Z

483

Biological sources and sinks of methane in tropical habitats and tropical atmospheric chemistry. Doctoral thesis  

SciTech Connect

The contents of this study include: two methods for measuring methane emission from a tropical lake; methane emission by bubbling from Gatun Lake, Panama; methane emission from wetlands in central Panama; consumption of atmospheric methane in soils of central Panama: effects of agricultural development; a seasonal study of soil-atmosphere methane, carbon dioxide, and 222Rn flux in a tropical moist forest; and the effects of tropical deforestation on global and regional atmospheric chemistry.

Keller, M.M.

1990-01-01T23:59:59.000Z

484

Joint Polar Satellite System Science Seminar Annual Digest  

E-Print Network (OSTI)

iii Joint Polar Satellite System Science Seminar Annual Digest 2013 #12;#12;Joint Polar Satellite Polar Satellite System (JPSS) Program Science, it is my pleasure to present this digest, which services, such as forecasting of severe weather events and environmental monitoring of land, ocean

485

EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas | Department of  

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

907: Biogas Anaerobic Digester Facility, Oakley, Kansas 907: Biogas Anaerobic Digester Facility, Oakley, Kansas EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas Summary This EA evaluates the environmental impacts of a proposal by DOE and USDA to provide funding to Western Plains Energy, LLC (WPE) to construct, purchase equipment, and operate a new Biogas Anaerobic Digester at WPE's existing Ethanol Facility, located at 3022 County Road 18, Grinnell Township (Oakley), Gove County, Kansas. The proposed facility will include a receiving building, digester, and related infrastructure. Based on the analysis in USDA's Final EA and FONSI, DOE has determined that DOE's proposed action does not constitute a major Federal action that would significantly affect the quality of the human or natural environment.

486

Anaerobic batch co-digestion of Spartina alterniflora and potato  

Science Journals Connector (OSTI)

The potential of mesophilic anaerobic batch digestion for the treatment of Spartina alterniflora, an invasive species widely distributed along Chinese coastlines, through co-digestion with readily biodegradable organics has been assessed. The accumulative biogas yield from S. alterniflora alone was 251 ml/g Total Solid (TS) (at 35°C), at TS of 6%, co-digestion with 80% of S. alterniflora and 20% of potato representing 6% of TS, gave a biogas yield of 383 ml/g TS (at 35°C). This is an increase of 52.5% compared with that obtained from digestion of pure S. alterniflora. In conclusion, using readily biodegradable potato as co-substrate of S. alterniflora can increase its anaerobic digestibility and biogas yield.

Jihong Li; Shiguan Yang; Zheng Zheng; Huamin Song; Zhuo Meng

2011-01-01T23:59:59.000Z

487

Key Science and Engineering Indicators: Digest 2012 | Data.gov  

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

Key Science and Engineering Indicators: Digest 2012 Key Science and Engineering Indicators: Digest 2012 BusinessUSA Data/Tools Apps Challenges Let's Talk BusinessUSA You are here Data.gov Ā» Communities Ā» BusinessUSA Ā» Data Key Science and Engineering Indicators: Digest 2012 Dataset Summary Description This 2012 digest of key S&E indicators is an interactive tool that draws from the National Science Board's (NSB's) Science and Engineering Indicators report. The digest serves to draw attention to important trends and data points from across Indicators and to introduce readers to the data resources available in the report. Tags {science,engineering,indicators,statistics,nsf,nsb,srs,federal,government,education,labor,employment,workforce,research,development,industry,international,global,r&d,technology,patents,"research citations"}

488

E-Print Network 3.0 - artificial digestion methods Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... (oxygen free) digestion of organic matter whereby the organic matter is converted...

489

E-Print Network 3.0 - animal manure digestion Sample Search Results  

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

with other organic wastes. Co-digestion has the primary advan- tage... to generate biogas from animal manure. Some com- mon anaerobic digester configurations used on farms...

490

E-Print Network 3.0 - anaerobic digestion Sample Search Results  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

491

E-Print Network 3.0 - anaerobic digestion technology Sample Search...  

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

technology on livestock farms... dioxide (EPA AgStar 2006). Benefits and Challenges of Biogas Technology Anaerobic digestion can convert... digester. Resources which ... Source:...

492

E-Print Network 3.0 - anaerobic digestion analysis Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

493

E-Print Network 3.0 - anaerobic digesters current Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

494

E-Print Network 3.0 - anaerobic digestion usa Sample Search Results  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

495

E-Print Network 3.0 - anaerobic digestion final Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

496

E-Print Network 3.0 - anaerobic digestion performance Sample...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

497

E-Print Network 3.0 - anaerobically digested cattle Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

498

E-Print Network 3.0 - acid digestion procedure Sample Search...  

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

Collection: Environmental Sciences and Ecology 6 www.manuremanagement.cornell.edu Biogas Casebook Summary: digester. Methanogens Active in phase 3 of the digestion process...

499

E-Print Network 3.0 - acid digestibility coefficients Sample...  

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

Medicine ; Environmental Sciences and Ecology 18 5. oktober 2009 Precision control of biogas plants Summary: coupling of digesters and post digestion 2) Process inhibition 3)...

500

E-Print Network 3.0 - anaerobic digestion heat Sample Search...  

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

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...