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Note: This page contains sample records for the topic "methane production system" 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

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...

2

Enhanced Renewable Methane Production System  

treatment that enhances the heating value of biogas, delivering a gas that is close to pipeline quality. This system offers

3

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

The basic energy conversion system being considered in thisEnergy Fixation and Conversion with Algal Bacterial Systems/energy producer based on current methane prices. bility of a kelp to methane conversion system

Haven, Kendall F.

2011-01-01T23:59:59.000Z

4

Marine biomass system: anaerobic digestion and production of methane  

DOE Green Energy (OSTI)

Two approaches to kelp conversion to methane are described. First, a large (10.56 mi/sup 2/) oceanic farm using an artificial substrate and an upwelling system to deliver nutrient-rich deep ocean water to the kelp bed is described. This system can yield as much as 50 tons of kelp (dry ash free - DAF) per acre-year. Kelp are harvested by a specially designed 30,000 DWT ship and delivered to an onshore processing plant as a ground kelp slurry. The second system involves the use of a natrual coastal kelp bed. Growth rates in this bed are stimulated by a nutrient rich sewer outfall. A conceptual model is presented for calculation of the growth rate of kelp in this natural bed which can reach 15 tons (DAF) per acre-year. The harvest activity and processing plant are similar to those for oceanic farm system. In the next section of this report, the overall concept of kelp production and conversion to methane is discussed. In Section III the general design of the ocean farm system is presented and discussed while Section IV contains a similar description for the natural bed system. Section V presents the capital requirements and operational labor, resources and material requirements. Section VI describes the environmental residuals created by the operation of either system and, to the extent possible, quantifies the rate at which these residuals are generated. In addition to the technical data reported herein, cost data have been generated for the various processes and components utilized in each solar technology. The requirements for costing information basically arise from the need to compute parameters such as investment demands, employment patterns, material demands and residual levels associated with each technology for each of several national and regional scenarios.

Haven, K.F.; Henriquez, M.; Ritschard, R.L.

1979-04-01T23:59:59.000Z

5

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

Performance Data For Anaerobic Digestion of Various Types ofMARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OFMARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF

Haven, Kendall F.

2011-01-01T23:59:59.000Z

6

Coalbed Methane Production  

Gasoline and Diesel Fuel Update (EIA)

Methane Production (Billion Cubic Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2006 2007 2008 2009...

7

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

synthetic natural gas (SNG) via anaerobic decomposition byof algal substrate for an SNG process involves increasingof characteristics for SNG production. Limiting factors in

Haven, Kendall F.

2011-01-01T23:59:59.000Z

8

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

9

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

10

Florida Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Florida Coalbed Methane Proved Reserves, Reserves Changes, and...

11

Michigan Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Michigan Coalbed Methane Proved Reserves, Reserves Changes, and...

12

Kentucky Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Kentucky Coalbed Methane Proved Reserves, Reserves Changes, and...

13

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....................................................................................................

14

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.

15

Enhanced Microbial Pathways for Methane Production from Oil Shale  

Science Conference Proceedings (OSTI)

Methane from oil shale can potentially provide a significant contribution to natural gas industry, and it may be possible to increase and continue methane production by artificially enhancing methanogenic activity through the addition of various substrate and nutrient treatments. Western Research Institute in conjunction with Pick & Shovel Inc. and the U.S. Department of Energy conducted microcosm and scaled-up reactor studies to investigate the feasibility and optimization of biogenic methane production from oil shale. The microcosm study involving crushed oil shale showed the highest yield of methane was produced from oil shale pretreated with a basic solution and treated with nutrients. Incubation at 30 C, which is the estimated temperature in the subsurface where the oil shale originated, caused and increase in methane production. The methane production eventually decreased when pH of the system was above 9.00. In the scaled-up reactor study, pretreatment of the oil shale with a basic solution, nutrient enhancements, incubation at 30 C, and maintaining pH at circumneutral levels yielded the highest rate of biogenic methane production. From this study, the annual biogenic methane production rate was determined to be as high as 6042 cu. ft/ton oil shale.

Paul Fallgren

2009-02-15T23:59:59.000Z

16

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)...

17

Arkansas Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (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...

18

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...

19

Kansas Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

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...

20

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...

Note: This page contains sample records for the topic "methane production system" 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

Wyoming Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (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...

22

Oklahoma Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

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...

23

Montana Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

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...

24

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...

25

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production LA, South Onshore Coalbed Methane Proved Reserves, Reserves...

26

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production California Coalbed Methane Proved Reserves, Reserves Changes,...

27

Texas (with State Offshore) Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Texas Coalbed Methane Proved Reserves, Reserves Changes, and...

28

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

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8 Coalbed Methane Proved Reserves, Reserves...

29

Texas--RRC District 5 Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 5 Coalbed Methane Proved Reserves, Reserves...

30

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

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 6 Coalbed Methane Proved Reserves, Reserves...

31

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

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Federal Offshore U.S. Coalbed Methane Proved Reserves, Reserves...

32

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 9 Coalbed Methane Proved Reserves, Reserves...

33

Texas--RRC District 3 Onshore Coalbed Methane Production (Billion...  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 3 Onshore Coalbed Methane Proved Reserves,...

34

Texas--RRC District 4 Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 4 Onshore Coalbed Methane Proved Reserves,...

35

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 1 Coalbed Methane Proved Reserves, Reserves...

36

New York Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production New York Coalbed Methane Proved Reserves, Reserves Changes, and...

37

Texas--RRC District 10 Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 10 Coalbed Methane Proved Reserves, Reserves...

38

North Dakota Coalbed Methane Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production North Dakota Coalbed Methane Proved Reserves, Reserves Changes,...

39

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production LA, State Offshore Coalbed Methane Proved Reserves, Reserves...

40

Texas--RRC District 2 Onshore Coalbed Methane Production (Billion...  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 2 Onshore Coalbed Methane Proved Reserves,...

Note: This page contains sample records for the topic "methane production system" 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

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Alaska Coalbed Methane Proved Reserves, Reserves Changes, and...

42

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, State Offshore Coalbed Methane Proved Reserves, Reserves...

43

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

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production Mississippi Coalbed Methane Proved Reserves, Reserves Changes,...

44

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

45

Sorghums for methane production. Annual report, April 1983-March 1984  

Science Conference Proceedings (OSTI)

The objective of this research is to develop an integrated system for methane production utilizing high-energy sorghum as the feedstock. Because of its wide geographic adaptability, its high gas-production potential, and the fact that it is already cultivated on over 15 million acres annually in the U.S., sorghum represents a significant potential energy resource that can be converted to methane by anaerobic digestion. This report provides specifics of research activities in the sorghums-for-methane program sponsored by Gas Research Institute and cofunded by Texas Agricultural Experiment Station. Researchers in the program include plant breeders, sorghum physiologists, agronomists, agricultural and systems engineers, and agricultural economists. Major research emphases are genetic manipulation, physiology and production systems, harvesting, storage, processing, and conversion systems; and economic and systems analyses. First-year results indicate that: (1) the proposed sorghum-methane system is in the realm of economic feasibility, and (2) research emphases in storage and high-efficiency conversion are critical to the economic implementation of the system. An innovative approach to combine the storage and conversion processes in a two-stage system is being investigated. Increased research emphasis is being placed on storage and conversion aspects of the system.

Hiler, E.A.; Miller, F.R.; Monk, R.L.; McBee, G.G.; Creelman, R.A.

1984-06-01T23:59:59.000Z

46

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

Annual Energy Outlook 2012 (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...

47

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

Annual Energy Outlook 2012 (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...

48

Sources of biogenic methane to form marine gas hydrates: In situ production or upward migration?  

SciTech Connect

Potential sources of biogenic methane in the Carolina Continental Rise -- Blake Ridge sediments have been examined. Two models were used to estimate the potential for biogenic methane production: (1) construction of sedimentary organic carbon budgets, and (2) depth extrapolation of modern microbial production rates. While closed-system estimates predict some gas hydrate formation, it is unlikely that >3% of the sediment volume could be filled by hydrate from methane produced in situ. Formation of greater amounts requires migration of methane from the underlying continental rise sediment prism. Methane may be recycled from below the base of the gas hydrate stability zone by gas hydrate decomposition, upward migration of the methane gas, and recrystallization of gas hydrate within the overlying stability zone. Methane bubbles may also form in the sediment column below the depth of gas hydrate stability because the methane saturation concentration of the pore fluids decreases with increasing depth. Upward migration of methane bubbles from these deeper sediments can add methane to the hydrate stability zone. From these models it appears that recycling and upward migration of methane is essential in forming significant gas hydrate concentrations. In addition, the depth distribution profiles of methane hydrate will differ if the majority of the methane has migrated upward rather than having been produced in situ.

Paull, C.K.; Ussler, W. III; Borowski, W.S.

1993-09-01T23:59:59.000Z

49

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

50

Table 16: Coalbed methane proved reserves and production, 2007...  

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

: Coalbed methane proved reserves and production, 2007 - 2011" "billion cubic feet" ,,"Reserves",,,,,,"Production" "State and Subdivision",,2007,2008,2009,2010,2011,,2007,2008,2009...

51

CFD Modeling of Methane Production from Hydrate-Bearing Reservoir  

Science Conference Proceedings (OSTI)

Methane hydrate is being examined as a next-generation energy resource to replace oil and natural gas. The U.S. Geological Survey estimates that methane hydrate may contain more organic carbon the the world's coal, oil, and natural gas combined. To assist in developing this unfamiliar resource, the National Energy Technology Laboratory has undertaken intensive research in understanding the fate of methane hydrate in geological reservoirs. This presentation reports preliminary computational fluid dynamics predictions of methane production from a subsurface reservoir.

Gamwo, I.K.; Myshakin, E.M.; Warzinski, R.P.

2007-04-01T23:59:59.000Z

52

Detection and Production of Methane Hydrate  

Science Conference Proceedings (OSTI)

This project seeks to understand regional differences in gas hydrate systems from the perspective of as an energy resource, geohazard, and long-term climate influence. Specifically, the effort will: (1) collect data and conceptual models that targets causes of gas hydrate variance, (2) construct numerical models that explain and predict regional-scale gas hydrate differences in 2-dimensions with minimal 'free parameters', (3) simulate hydrocarbon production from various gas hydrate systems to establish promising resource characteristics, (4) perturb different gas hydrate systems to assess potential impacts of hot fluids on seafloor stability and well stability, and (5) develop geophysical approaches that enable remote quantification of gas hydrate heterogeneities so that they can be characterized with minimal costly drilling. Our integrated program takes advantage of the fact that we have a close working team comprised of experts in distinct disciplines. The expected outcomes of this project are improved exploration and production technology for production of natural gas from methane hydrates and improved safety through understanding of seafloor and well bore stability in the presence of hydrates. The scope of this project was to more fully characterize, understand, and appreciate fundamental differences in the amount and distribution of gas hydrate and how this would affect the production potential of a hydrate accumulation in the marine environment. The effort combines existing information from locations in the ocean that are dominated by low permeability sediments with small amounts of high permeability sediments, one permafrost location where extensive hydrates exist in reservoir quality rocks and other locations deemed by mutual agreement of DOE and Rice to be appropriate. The initial ocean locations were Blake Ridge, Hydrate Ridge, Peru Margin and GOM. The permafrost location was Mallik. Although the ultimate goal of the project was to understand processes that control production potential of hydrates in marine settings, Mallik was included because of the extensive data collected in a producible hydrate accumulation. To date, such a location had not been studied in the oceanic environment. The project worked closely with ongoing projects (e.g. GOM JIP and offshore India) that are actively investigating potentially economic hydrate accumulations in marine settings. The overall approach was fivefold: (1) collect key data concerning hydrocarbon fluxes which is currently missing at all locations to be included in the study, (2) use this and existing data to build numerical models that can explain gas hydrate variance at all four locations, (3) simulate how natural gas could be produced from each location with different production strategies, (4) collect new sediment property data at these locations that are required for constraining fluxes, production simulations and assessing sediment stability, and (5) develop a method for remotely quantifying heterogeneities in gas hydrate and free gas distributions. While we generally restricted our efforts to the locations where key parameters can be measured or constrained, our ultimate aim was to make our efforts universally applicable to any hydrate accumulation.

George Hirasaki; Walter Chapman; Gerald Dickens; Colin Zelt; Brandon Dugan; Kishore Mohanty; Priyank Jaiswal

2011-12-31T23:59:59.000Z

53

Table 16. Coalbed methane proved reserves and production, 2007 - 2011  

U.S. Energy Information Administration (EIA)

Table 16: Coalbed methane proved reserves and production, 2007 – 2011 billion cubic feet State and Subdivision 2007 2008 2009 2010 2011 2007 2008 2009 2010 2011

54

NETL: News Release - Methane Hydrate Production Technologies...  

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

of CO2 molecules for methane molecules in the solid-water hydrate lattice, the release of methane gas, and the permanent storage of CO2 in the formation. This field experiment will...

55

Hydrogen Production from Methane Using Oxygen-permeable Ceramic Membranes.  

E-Print Network (OSTI)

??Non-porous ceramic membranes with mixed ionic and electronic conductivity have received significant interest as membrane reactor systems for the conversion of methane and higher hydrocarbons… (more)

Faraji, Sedigheh

2010-01-01T23:59:59.000Z

56

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

57

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

Science Conference Proceedings (OSTI)

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

58

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

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

Production (Billion Cubic Feet) U.S. 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 91 1990's...

59

New Mexico Coalbed Methane Production (Billion Cubic Feet)  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) New Mexico 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 56...

60

New Mexico--West Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) New Mexico--West 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...

Note: This page contains sample records for the topic "methane production system" 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

Louisiana--North Coalbed Methane Production (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Louisiana--North 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...

62

Lower 48 States Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) Lower 48 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 Year-9 2000's...

63

New Mexico--East Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) New Mexico--East 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...

64

West Virginia Coalbed Methane Production (Billion Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

Production (Billion Cubic Feet) West 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 30...

65

Enhanced Coalbed Methane Production While Sequestration CO2 in...  

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

Road South Park, PA 15129 412-854-6676 dickwinschel@consolenergy.com EnhancEd coalbEd MEthanE Production WhilE SEquEStrating co 2 in unMinEablE coal SEaMS Background CONSOL Energy...

66

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a drilling hazard by the oil and gas industry for years. Drilling engineers working in Russia, Canada and the USA have documented numerous problems, including drilling kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrates as a potential energy source agree that the resource potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained from physical samples taken from actual hydrate-bearing rocks. This gas-hydrate project is a cost-shared partnership between Maurer Technology, Anadarko Petroleum, Noble Corporation, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. The project team drilled and continuously cored the Hot Ice No. 1 well on Anadarko-leased acreage beginning in FY 2003 and completed in 2004. An on-site core analysis laboratory was built and used for determining physical characteristics of hydrates and surrounding rock. After the well was logged, a 3D vertical seismic profile (VSP) was recorded to calibrate the shallow geologic section with seismic data and to investigate techniques to better resolve lateral subsurface variations of potential hydrate-bearing strata. Paulsson Geophysical Services, Inc. deployed their 80 level 3C clamped borehole seismic receiver array in the wellbore to record samples every 25 ft. Seismic vibrators were successively positioned at 1185 different surface positions in a circular pattern around the wellbore. This technique generated a 3D image of the subsurface. Correlations were generated of these seismic data with cores, logging, and other well data. Unfortunately, the Hot Ice No. 1 well did not encounter hydrates in the reservoir sands, although brine-saturated sands containing minor amounts of methane were encountered within the hydrate stability zone (HSZ). Synthetic seismograms created from well log data were in agreement with reflectivity data measured by the 3D VSP survey. Modeled synthetic seismograms indicated a detectable seismic response would be expected in the presence of hydrate-bearing sands. Such a response was detected in the 3D VSP data at locations up-dip to the west of the Hot Ice No. 1 wellbore. Results of this project suggest that the presence of hydrate-bearing strata may not be related as simply to HSZ thickness as previously thought. Geological complications of reservoir facies distribution within fluvial-deltaic environments will require sophisticated detection technologies to assess the locations of recoverable volumes of methane contained in hydrates. High-resolution surface seismic data and more rigorous well log data analysis offer the best near-term potential. The hydrate resource potential is huge, but better tools are needed to accurately assess their location, distribution and economic recoverability.

Donn McGuire; Thomas Williams; Bjorn Paulsson; Alexander Goertz

2005-02-01T23:59:59.000Z

67

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

68

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

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 8A Coalbed Methane Proved Reserves, Reserves...

69

Texas--RRC District 7B Coalbed Methane Production (Billion Cubic...  

Annual Energy Outlook 2012 (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC District 7B Coalbed Methane Proved Reserves, Reserves...

70

Texas--RRC District 7C Coalbed Methane Production (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

data. Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane Estimated Production TX, RRC Distict 7C Coalbed Methane Proved Reserves, Reserves...

71

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is in the final stages of a cost shared partnership between Maurer Technology, Noble Corporation, Anadarko Petroleum, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. The work scope drilled and cored a well The HOT ICE No.1 on Anadarko leases beginning in FY 2003 and completed in 2004. An on-site core analysis laboratory was built and utilized for determining the physical characteristics of the hydrates and surrounding rock. The well was drilled from a new Anadarko Arctic Platform that has a minimal footprint and environmental impact. The final efforts of the project are to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists developing reservoir models. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in this report.

Thomas E. Williams; Keith Millheim; Buddy King

2004-06-01T23:59:59.000Z

72

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is in the final stages of a cost shared partnership between Maurer Technology, Noble Corporation, Anadarko Petroleum, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. The work scope drilled and cored a well The HOT ICE No.1 on Anadarko leases beginning in FY 2003 and completed in 2004. An on-site core analysis laboratory was built and utilized for determining the physical characteristics of the hydrates and surrounding rock. The well was drilled from a new Anadarko Arctic Platform that has a minimal footprint and environmental impact. The final efforts of the project are to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists developing reservoir models. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in this report.

Thomas E. Williams; Keith Millheim; Buddy King

2004-07-01T23:59:59.000Z

73

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Oil-field engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in Arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrates agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is a cost-shared partnership between Maurer Technology, Anadarko Petroleum, Noble Corporation, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to help identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. As part of the project work scope, team members drilled and cored the HOT ICE No. 1 on Anadarko leases beginning in January 2003 and completed in March 2004. Due to scheduling constraints imposed by the Arctic drilling season, operations at the site were suspended between April 21, 2003 and January 30, 2004. An on-site core analysis laboratory was designed, constructed and used for determining physical characteristics of frozen core immediately after it was retrieved from the well. The well was drilled from a new and innovative Anadarko Arctic Platform that has a greatly reduced footprint and environmental impact. Final efforts of the project were to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists for future hydrate operations. Unfortunately, no gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in the project reports.

Thomas E. Williams; Keith Millheim; Bill Liddell

2005-03-01T23:59:59.000Z

74

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. The work scope drilled and cored a well The Hot Ice No. 1 on Anadarko leases beginning in FY 2003 and completed in 2004. An on-site core analysis laboratory was built and utilized for determining the physical characteristics of the hydrates and surrounding rock. The well was drilled from a new Anadarko Arctic Platform that has a minimal footprint and environmental impact. The final efforts of the project are to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists developing reservoir models. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in this report. The Hot Ice No. 1 well was drilled from the surface to a measured depth of 2300 ft. There was almost 100% core recovery from the bottom of surface casing at 107 ft to total depth. Based on the best estimate of the bottom of the methane hydrate stability zone (which used new data obtained from Hot Ice No. 1 and new analysis of data from adjacent wells), core was recovered over its complete range. Approximately 580 ft of porous, mostly frozen, sandstone and 155 of conglomerate were recovered in the Ugnu Formation and approximately 215 ft of porous sandstone were recovered in the West Sak Formation. There were gas shows in the bottom part of the Ugnu and throughout the West Sak. No hydrate-bearing zones were identified either in recovered core or on well logs. The base of the permafrost was found at about 1260 ft. With the exception of the deepest sands in the West Sak and some anomalous thin, tight zones, all sands recovered (after thawing) are unconsolidated with high porosity and high permeability. At 800 psi, Ugnu sands have an average porosity of 39.3% and geometrical mean permeability of 3.7 Darcys. Average grain density is 2.64 g/cc. West Sak sands have an average porosity of 35.5%, geometrical mean permeability of 0.3 Darcys, and average grain density of 2.70 g/cc. There were several 1-2 ft intervals of carbonate-cemented sandstone recovered from the West Sak. These intervals have porosities of only a few percent and very low permeability. On a well log they appear as resistive with a high sonic velocity. In shallow sections of other wells these usually are the only logs available. Given the presence of gas in Hot Ice No. 1, if only resistivity and sonic logs and a mud log had been available, tight sand zones may have been interpreted as containing hydrates. Although this finding does not imply that all previously mapped hydrate zones are merely tight sands, it does add a note of caution to the practice of interpreting the presence of hydrates from old well information. The methane hydrate stability zone below the Hot Ice No. 1 location includes thick sections of sandstone and conglomerate which would make excellent reservoir rocks for hydrates and below the permafrost zone shallow gas. The Ugnu formation comprises a more sand-rich section than does the West Sak formation, and the Ugnu sands when cleaned and dried are slightly more porous and significantly more permeable than the West Sak.

Richard Sigal; Kent Newsham; Thomas Williams; Barry Freifeld; Timothy Kneafsey; Carl Sondergeld; Shandra Rai; Jonathan Kwan; Stephen Kirby; Robert Kleinberg; Doug Griffin

2005-02-01T23:59:59.000Z

75

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is a cost-shared partnership between Maurer Technology, Anadarko Petroleum, Noble Corporation, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to help identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. As part of the project work scope, team members drilled and cored a well (the Hot Ice No. 1) on Anadarko leases beginning in January 2003 and completed in March 2004. Due to scheduling constraints imposed by the Arctic drilling season, operations at the site were suspended between April 21, 2003 and January 30, 2004. An on-site core analysis laboratory was constructed and used for determining physical characteristics of frozen core immediately after it was retrieved from the well. The well was drilled from a new and innovative Anadarko Arctic Platform that has a greatly reduced footprint and environmental impact. Final efforts of the project were to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists for future hydrate operations. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in the project reports. Documenting the results of this effort are key to extracting lessons learned and maximizing the industry's benefits for future hydrate exploitation. In addition to the Final Report, several companion Topical Reports are being published.

Thomas E. Williams; Keith Millheim; Bill Liddell

2004-11-01T23:59:59.000Z

76

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project was a cost-shared partnership between Maurer Technology, Noble Corporation, Anadarko Petroleum, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. The work scope included drilling and coring a well (Hot Ice No. 1) on Anadarko leases beginning in FY 2003 and completed in 2004. During the first drilling season, operations were conducted at the site between January 28, 2003 to April 30, 2003. The well was spudded and drilled to a depth of 1403 ft. Due to the onset of warmer weather, work was then suspended for the season. Operations at the site were continued after the tundra was re-opened the following season. Between January 12, 2004 and March 19, 2004, the well was drilled and cored to a final depth of 2300 ft. An on-site core analysis laboratory was built and utilized for determining the physical characteristics of the hydrates and surrounding rock. The well was drilled from a new Anadarko Arctic Platform that has a minimal footprint and environmental impact. The final efforts of the project are to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists planning hydrate exploration and development projects. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in this and other project reports. This Topical Report contains details describing logging operations.

Steve Runyon; Mike Globe; Kent Newsham; Robert Kleinberg; Doug Griffin

2005-02-01T23:59:59.000Z

77

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is a cost-shared partnership between Maurer Technology, Anadarko Petroleum, Noble Corporation, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to help identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. As part of the project work scope, team members drilled and cored a well (the Hot Ice No. 1) on Anadarko leases beginning in January 2003 and completed in March 2004. Due to scheduling constraints imposed by the Arctic drilling season, operations at the site were suspended between April 21, 2003 and January 30, 2004. An on-site core analysis laboratory was constructed and used for determining physical characteristics of frozen core immediately after it was retrieved from the well. The well was drilled from a new and innovative Anadarko Arctic Platform that has a greatly reduced footprint and environmental impact. Final efforts of the project were to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists for future hydrate operations. No gas hydrates were encountered in this well; however, a wealth of information was generated and is contained in the project reports. Documenting the results of this effort are key to extracting lessons learned and maximizing the industry's benefits for future hydrate exploitation.

Thomas E. Williams; Keith Millheim; Bill Liddell

2005-02-01T23:59:59.000Z

78

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project was a cost-shared partnership between Maurer Technology, Noble Corporation, Anadarko Petroleum, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. The work scope included drilling and coring a well (Hot Ice No. 1) on Anadarko leases beginning in FY 2003 and completed in 2004. During the first drilling season, operations were conducted at the site between January 28, 2003 to April 30, 2003. The well was spudded and drilled to a depth of 1403 ft. Due to the onset of warmer weather, work was then suspended for the season. Operations at the site were continued after the tundra was re-opened the following season. Between January 12, 2004 and March 19, 2004, the well was drilled and cored to a final depth of 2300 ft. An on-site core analysis laboratory was built and implemented for determining physical characteristics of the hydrates and surrounding rock. The well was drilled from a new Anadarko Arctic Platform that has a minimal footprint and environmental impact. Final efforts of the project are to correlate geology, geophysics, logs, and drilling and production data and provide this information to scientists developing reservoir models and to research teams for developing future gas-hydrate projects. No gas hydrates were encountered in this well; however, a wealth of information was generated and has been documented by the project team. This Topical Report documents drilling and coring operations and other daily activities.

Ali Kadaster; Bill Liddell; Tommy Thompson; Thomas Williams; Michael Niedermayr

2005-02-01T23:59:59.000Z

79

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

Science Conference Proceedings (OSTI)

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is in the final stages of a cost-shared partnership between Maurer Technology, Noble Corporation, Anadarko Petroleum, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. Hot Ice No. 1 was planned to test the Ugnu and West Sak sequences for gas hydrates and a concomitant free gas accumulation on Anadarko's 100% working interest acreage in section 30 of Township 9N, Range 8E of the Harrison Bay quadrangle of the North Slope of Alaska. The Ugnu and West Sak intervals are favorably positioned in the hydrate-stability zone over an area extending from Anadarko's acreage westward to the vicinity of the aforementioned gas-hydrate occurrences. This suggests that a large, north-to-south trending gas-hydrate accumulation may exist in that area. The presence of gas shows in the Ugnu and West Sak reservoirs in wells situated eastward and down dip of the Hot Ice location indicate that a free-gas accumulation may be trapped by gas hydrates. The Hot Ice No. 1 well was designed to core from the surface to the base of the West Sak interval using the revolutionary and new Arctic Drilling Platform in search of gas hydrate and free gas accumulations at depths of approximately 1200 to 2500 ft MD. A secondary objective was the gas-charged sands of the uppermost Campanian interval at approximately 3000 ft. Summary results of geophysical analysis of the well are presented in this report.

Donn McGuire; Steve Runyon; Richard Sigal; Bill Liddell; Thomas Williams; George Moridis

2005-02-01T23:59:59.000Z

80

Methane Decomposition: Production of Hydrogen and Carbon Filaments  

E-Print Network (OSTI)

) is an obvious source for hydrogen. Steam reforming of methane represents the current trend for hydrogen. The process required to eliminate CO from the hydrogen produced in the steam reformer is briefly described below. The steam reformer products containing B10% CO (depending on the feedstock and conditions

Goodman, Wayne

Note: This page contains sample records for the topic "methane production system" 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

US COALBED METHANE The Past: Production The Present: Reserves  

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

Panel 2 of 2 Panel 2 of 2 US COALBED METHANE The Past: Production The Present: Reserves The Future: Resources Annual coalbed methane gas production data through 12/31/2006 was obtained from 17 state oil & gas regulatory entities or geological surv eys and one producing company. Data for 2006 were not yet av ailable for West Virginia and Pennsy lvania so the 2005 v olumes were assumed to repeat in 2006. Produced CBM gas v olumes from each state were clas sified by basin. The cumulative production pie chart to the left shows the sum of all reported CBM gas volumes by basin through 2006. The San Juan Bas in dominates the chart. The only other bas in to ex ceed 10% is the Pow der River Basin (12%). Relative cumulative production volumes by basin are spatially depicted in the c

82

Enhancement of methane production in the anaerobic digestion of sewage sludges  

DOE Green Energy (OSTI)

The effect of powdered activated carbon on stressed anaerobic digesters utilizing a sewage sludge substrate was evaluated. The addition of carbon resulted in increased methanee production and greater process stability. The degree of enhancement appeared to be proportional to carbon concentration over the dose range studied (500-10,000 mg/l). A maximum increase in methane production of about 150% was observed at the highest carbon dose. The effect of 1500 mg/l carbon, 4000 mg/l coal, and 4000 mg/l flyash on relatively unstressed digesters was also examined. Units using a sewage sludge substrate were operated at 10 and 20 day SRT's. A 12% increase in methane production was observed in a carbon dosed digester functioning at a 10 day detention time. Enhancement was not evident with carbon at a 20 day SRT. No significant improvement in methane production was obtained in any of the digesters using coal or flyash as additives. Using the experimental data, a technique was developed for estimating the efficiencies of the methane forming and acid forming steps in the anaerobic digestion process. The results indicated that in stressed systems both stages of the digestion process were enhanced by the addition of powdered carbon. In the relatively unstressed systems, when enhancement did occur, only the scid forming step was affected. This information will supplement current research at determining the mechanism(s) by which carbon enhances the digestion process.Based on the results of this study, it appears that the benefits of carbon addition are greatest in stressed systems. Only very moderate increases in methane production would probably be attainable in well operating digesters. Coal and flyash do not seem to be effective in enhancing gas production in unstressed systems. However, their effectiveness has not been tested in stressed situations.

Spencer, R.R.

1978-05-10T23:59:59.000Z

83

Methane Hydrate Production from Alaskan Permafrost  

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

DOE and Maurer Technology are to evaluate the subsurface hydrate occurrence and its production potential. It is anticipated that it will require two to three months from spud...

84

APPENDIX E: METHANE EMISSIONS FROM NATURAL GAS PRODUCTION, OIL PRODUCTION, COAL MINING, AND  

E-Print Network (OSTI)

APPENDIX E: METHANE EMISSIONS FROM NATURAL GAS PRODUCTION, OIL PRODUCTION, COAL MINING, AND OTHER PRODUCTION, COAL MINING, AND OTHER SOURCES An Appendix to the Report "A Lifecycle Emissions Model (LEM of natural gas, which is mostly CH4, occurs through natural gas production, oil production, and coal mining

Delucchi, Mark

85

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is in the second year of a three-year endeavor being sponsored by Maurer Technology, Noble, and Anadarko Petroleum, in partnership with the DOE. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition. We plan to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. We also plan to design and implement a program to safely and economically drill, core and produce gas from arctic hydrates. The current work scope is to drill and core a well on Anadarko leases in FY 2003 and 2004. We are also using an on-site core analysis laboratory to determine some of the physical characteristics of the hydrates and surrounding rock. The well is being drilled from a new Anadarko Arctic Platform that will have minimal footprint and environmental impact. We hope to correlate geology, geophysics, logs, and drilling and production data to allow reservoir models to be calibrated. Ultimately, our goal is to form an objective technical and economic evaluation of reservoir potential in Alaska.

Thomas E. Williams; Keith Millheim; Buddy King

2004-03-01T23:59:59.000Z

86

METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST  

SciTech Connect

Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the US have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates. This gas-hydrate project is in the second year of a three-year endeavor being sponsored by maurer Technology, noble, and Anadarko Petroleum, in partnership with the DOE. The purpose of the project is to build on previous and ongoing R and D in the area of onshore hydrate deposition. They plan to identify, quantify and predict production potential for hydrates located on the North Slope of Alaska. They also plan to design and implement a program to safely and economically drill, core and produce gas from arctic hydrates. The current work scope is to drill and core a well on Anadarko leases in FY 2003 and 2004. They are also using an on-site core analysis laboratory to determine some of the physical characteristics of the hydrates and surrounding rock. The well is being drilled from a new Anadarko Arctic Platform that will have minimal footprint and environmental impact. They hope to correlate geology, geophysics, logs, and drilling and production data to allow reservoir models to be calibrated. Ultimately, the goal is to form an objective technical and economic evaluation of reservoir potential in Alaska.

Thomas E. Williams; Keith Millheim; Buddy King

2003-12-01T23:59:59.000Z

87

System for recovering methane gas from liquid waste  

SciTech Connect

A system for and method of recovering methane gas from liquid waste which is stored within a pit is disclosed herein. The methane gas is produced by causing the liquid waste to undergo anaerobic fermentation. Therefore, it is necessary to close the pit in an air tight fashion. This is carried out using a cover sheet which is fixedly disposed over the pit in an air tight but readily disengagable fashion. The liquid waste within this air tight pit is preferably agitated intermittently during its storage therein whereby to increase the amount of methane gas produced.

Grabis, D.W.

1983-07-19T23:59:59.000Z

88

Table 17. Coalbed methane proved reserves, reserves changes, and production, 201  

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

Coalbed methane proved reserves, reserves changes, and production, 2011" Coalbed methane proved reserves, reserves changes, and production, 2011" "billion cubic feet" ,,"Changes in Reserves During 2011" ,"Published",,,,,,,,"New Reservoir" ,"Proved",,"Revision","Revision",,,,"New Field","Discoveries","Estimated","Proved" ,"Reserves","Adjustments","Increases","Decreases","Sales","Acquisitions","Extensions","Discoveries","in Old Fields","Production","Reserves" "State and Subdivision",40543,"(+,-)","(+)","(-)","(-)","(+)","(+)","(+)","(+)","(-)",40908

89

Production of Organic Oxygenates in the Partial Oxidation of Methane in a Silent Electric Discharge Reactor  

E-Print Network (OSTI)

Significant amounts of these reserves are located in remote areas. Steam reforming to synthesis gasProduction of Organic Oxygenates in the Partial Oxidation of Methane in a Silent Electric Discharge, Room T 335, Norman, Oklahoma 73019 This study on the partial oxidation of methane in a silent electric

Mallinson, Richard

90

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

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

Coalbed Methane Proved Reserves, Reserves Changes, and Production" Coalbed Methane Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2011,"6/30/1989" ,"Release Date:","8/1/2013" ,"Next Release Date:","8/1/2014" ,"Excel File Name:","ng_enr_coalbed_dcu_nus_a.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/ng/ng_enr_coalbed_dcu_nus_a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

91

Methane production during the anaerobic decomposition of composted and raw organic refuse in simulated landfill cells  

E-Print Network (OSTI)

Methane contributes 20% annually to increases in global warming, and is explosive at concentrations of 5-15% in air. Landfills contribute 15% to total methane emissions. This study was conducted to determine the potential decrease in methane production from landfills if organic waste is composted prior to. The quantities and rates of methane production were measured from simulated landfill cells containing composted and raw simulated refuse. The refuse was composted in an open pile and characterized by temperature, pH, ash content and C02 evolved during aerobic respiration. Assuming a 1 0% lignin content, the labile carbon fraction was reduced by an estimated 71 % during composting. Over a of six month period, simulated landfill cells filled with raw waste generated 66 M3 methane per Mg of dry refuse, while cells containing compost produced 31 M3 methane per Mg of dry compost. Per unit weight of dry raw material, composted waste placed in a landfill produced only 23% of the methane that was generated from raw refuse.

West, Margrit Evelyn

1995-01-01T23:59:59.000Z

92

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

93

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 (â??Methane in the Arctic Shelfâ?ť 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 (â??metagenomesâ?ť). 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

94

Evaluating the effects of essential oils and condensed tannin on fermentation and methane production under in vitro conditions.  

E-Print Network (OSTI)

??The effects of essential oils (EO) and condensed tannin (CT) on methane production and fermentation were evaluated under in vitro conditions. Experiment one screened the… (more)

Pinski, Brittany

2013-01-01T23:59:59.000Z

95

Seasonal Production and Emission of Methane from Rice Fields, Final Report  

DOE Green Energy (OSTI)

B 139 - Methane (CH4) is a greenhouse gas regarded second only to carbon dioxide in its ability to cause global warming. Methane is important because of its relatively fast increase, and also because it is, per molecule, some 60 times more effective than carbon dioxide in causing global warming. The largest present anthropogenic sources of methane are rice fields, cattle and biomass burning. The global emissions from these sources are still not well known. In the middle 1980s there were few available data on methane emissions from rice fields leading to estimates of a global source between 100-280 Tg/yr. Extensive worldwide research during the last decade has shown that the global emissions from rice fields are more likely to be in the range of 30-80Tg/yr. While this work has led to a substantial reduction in the estimated emissions, the uncertainty is still quite large, and seriously affects our ability to include methane in integrated assessments for future climate change and environmental management.China dominated estimates of methane emissions from rice fields because it was, and is, the largest producer of rice, and major increases in rice production had taken place in the country over the last several decades. This report summarizes the work in Sichuan Province, China, in each of the following areas: the design of the experiment; the main results on methane emissions from rice fields, delineating the factors controlling emissions; production of methane in the soil; a survey of water management practices in sample of counties in Sichuan province; and results of ambient measurements including data from the background continental site. B139

Khalil, M. Aslam K.; Rasmussen,Reinhold A.

2002-12-03T23:59:59.000Z

96

Enhanced Renewable Methane Production System Benefits ...  

The treatment enhances the heating value of biogas, delivering a gas that is close to pipeline quality. In addition, ...

97

INTEGRATED POWER GENERATION SYSTEMS FOR COAL MINE WASTE METHANE UTILIZATION  

DOE Green Energy (OSTI)

An integrated system to utilize the waste coal mine methane (CMM) at the Federal No. 2 Coal Mine in West Virginia was designed and built. The system includes power generation, using internal combustion engines, along with gas processing equipment to upgrade sub-quality waste methane to pipeline quality standards. The power generation has a nominal capacity of 1,200 kw and the gas processing system can treat about 1 million cubic feet per day (1 MMCFD) of gas. The gas processing is based on the Northwest Fuel Development, Inc. (NW Fuel) proprietary continuous pressure swing adsorption (CPSA) process that can remove nitrogen from CMM streams. The two major components of the integrated system are synergistic. The byproduct gas stream from the gas processing equipment can be used as fuel for the power generating equipment. In return, the power generating equipment provides the nominal power requirements of the gas processing equipment. This Phase III effort followed Phase I, which was comprised of a feasibility study for the project, and Phase II, where the final design for the commercial-scale demonstration was completed. The fact that NW Fuel is desirous of continuing to operate the equipment on a commercial basis provides the validation for having advanced the project through all of these phases. The limitation experienced by the project during Phase III was that the CMM available to operate the CPSA system on a commercial basis was not of sufficiently high quality. NW Fuel's CPSA process is limited in its applicability, requiring a relatively high quality of gas as the feed to the process. The CPSA process was demonstrated during Phase III for a limited time, during which the processing capabilities met the expected results, but the process was never capable of providing pipeline quality gas from the available low quality CMM. The NW Fuel CPSA process is a low-cost ''polishing unit'' capable of removing a few percent nitrogen. It was never intended to process CMM streams containing high levels of nitrogen, as is now the case at the Federal No.2 Mine. Even lacking the CPSA pipeline delivery demonstration, the project was successful in laying the groundwork for future commercial applications of the integrated system. This operation can still provide a guide for other coal mines which need options for utilization of their methane resources. The designed system can be used as a complete template, or individual components of the system can be segregated and utilized separately at other mines. The use of the CMM not only provides an energy fuel from an otherwise wasted resource, but it also yields an environmental benefit by reducing greenhouse gas emissions. The methane has twenty times the greenhouse effect as compared to carbon dioxide, which the combustion of the methane generates. The net greenhouse gas emission mitigation is substantial.

Peet M. Soot; Dale R. Jesse; Michael E. Smith

2005-08-01T23:59:59.000Z

98

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

DOE Green Energy (OSTI)

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

99

Upgrading drained coal mine methane to pipeline quality: a report on the commercial status of system suppliers  

Science Conference Proceedings (OSTI)

In today's scenario of growing energy demand worldwide and rising natural gas prices, any methane emitted into the atmosphere is an untapped resource of energy and potentially a lost opportunity for additional revenue. In 2005, 9.7% of the total US anthropogenic emissions of methane were attributed to coal production. In recent years, many gassy coal mines have seized the opportunity to recover coal mine methane (CMM) and supply it to natural gas pipeline systems. With natural gas prices in the US exceeding $7.00 per million Btu, CMM pipeline sales brought in an annual revenue topping $97 million in 2005. However, significant opportunity still exists for tapping into this resource as 22% of the drained CMM remains unutilized as of 2005, primarily because its quality does not meet the requirements of natural gas pipeline systems. Recent advances in technologies now offer off-the-shelf options in the US that can upgrade the drained CMM to pipeline quality. These gas upgrading technologies are not only opening up the market to lower-quality methane resources but also providing significant means for reducing emissions, since methane is over 20 times a more potent greenhouse gas than carbon dioxide. This report reviews current gas upgrading technologies available in the market for removal of typical CMM contaminants, provides examples of their successful commercial implementation and compiles a list of vendors specific to nitrogen rejection systems, since nitrogen exposes the biggest challenge to upgrading CMM. 2 figs., 3 tabs., 9 apps.

Carothers, F.P.; Schultz, M.L.

2008-01-15T23:59:59.000Z

100

Production and Ebullition of Methane in a Shallow Eutrophic Lake (Lake Elsinore, CA)  

E-Print Network (OSTI)

monoxide, methane, carbon dioxide and total gaseous mercuryFluxes of methane and carbon dioxide from a small productiveebullition of methane and carbon dioxide from a eutrophied

Martinez, Denise Nicole

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Synthesis Gas Production from Partial Oxidation of Methane with Air in AC Electric Gas Discharge  

E-Print Network (OSTI)

depending on the ratio of hydrogen to carbon monoxide. Most synthesis gas is produced by the steam reform reaction. Industrially, steam reforming is performed over a Ni/ Al2O3 catalyst.9 The typical problemSynthesis Gas Production from Partial Oxidation of Methane with Air in AC Electric Gas Discharge K

Mallinson, Richard

102

Anaerobic digestion for methane generation and ammonia reforming for hydrogen production  

E-Print Network (OSTI)

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

103

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

104

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

105

Development of Risk Assessment System for Coal-Bed Methane Underbalanced Drilling  

Science Conference Proceedings (OSTI)

As there are a lot of factors with complexity and uncertainty, the process of coal-bed methane under balanced drilling has great risk. In order to overcome the one-sidedness and limitation caused by single evaluation method, the combined evaluation model ... Keywords: coal-bed methane, underbalanced drilling, combined evaluation model, risk assessment system

Xiujuan Yang; Qingyang Wen; Xiangzhen Yan; Yan Xia

2010-12-01T23:59:59.000Z

106

Methane and carbon dioxide production from simulated anaerobic degradation of cattle carcasses  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer This study evaluates methane and carbon dioxide production after land burial of cattle carcasses. Black-Right-Pointing-Pointer Disposal of animal mortalities is often overlooked in evaluating the environmental impacts of animal production. Black-Right-Pointing-Pointer we quantify annual emissions from cattle carcass disposal in the United States as 1.6 Tg CO{sub 2} equivalents. - Abstract: Approximately 2.2 million cattle carcasses require disposal annually in the United States. Land burial is a convenient disposal method that has been widely used in animal production for disposal of both daily mortalities as well as during catastrophic mortality events. To date, greenhouse gas production after mortality burial has not been quantified, and this study represents the first attempt to quantify greenhouse gas emissions from land burial of animal carcasses. In this study, anaerobic decomposition of both homogenized and unhomogenized cattle carcass material was investigated using bench-scale reactors. Maximum yields of methane and carbon dioxide were 0.33 and 0.09 m{sup 3}/kg dry material, respectively, a higher methane yield than that previously reported for municipal solid waste. Variability in methane production rates were observed over time and between reactors. Based on our laboratory data, annual methane emissions from burial of cattle mortalities in the United States could total 1.6 Tg CO{sub 2} equivalents. Although this represents less than 1% of total emissions produced by the agricultural sector in 2009, greenhouse gas emissions from animal carcass burial may be significant if disposal of swine and poultry carcasses is also considered.

Yuan Qi; Saunders, Samuel E. [Department of Civil Engineering, Peter Kiewit Institute, University of Nebraska-Lincoln, Omaha, NE (United States); Bartelt-Hunt, Shannon L., E-mail: sbartelt2@unl.edu [Department of Civil Engineering, Peter Kiewit Institute, University of Nebraska-Lincoln, Omaha, NE (United States)

2012-05-15T23:59:59.000Z

107

Monitoring Coal Bed Methane Production: A Case Study from the Powder River Basin, Wyoming, United States of America.  

E-Print Network (OSTI)

1 Monitoring Coal Bed Methane Production: A Case Study from the Powder River Basin, Wyoming, United The growing significance of the Powder River Basin's Coal Bed Methane (CBM) to United States domestic energy approximates 6% above the coal as well as inside the coal layer. This difference can be attributed primarily

Harris, Jerry M.

108

Time-series analysis for the episodic production and transport of methane from the Glacial Lake Agassiz peatlands, northern Minnesota. Final report  

SciTech Connect

The large peat basins of North America are an important reservoir in the global carbon cycle and a significant source of atmospheric methane. The authors investigated carbon cycling in the Glacial Lake Agassiz peatlands (GLAP) of Minnesota. Initially in 1990, they identified a dramatic change in the concentration of methane in the pore-waters of the raised bogs in the GLAP during an extreme drought. This methane dissipated when the drought broke in 1991 and the occurrence of deep methane is related to changes in the direction of groundwater flow in the peat column. The production of methane and its diffusive loss to the atmosphere was modeled and was about 10 times less than that measured directly in chambers at the land surface. It is clear from the reversals in hydraulic heat, changes in pore-water chemical composition over time, and paleostratigraphic markers, that regional ground water flow systems that are controlled by climate change are unexpectedly a major control over methanogenesis and carbon cycling in GLAP. Seismic profiles made showed that buried bedrock ridges particularly deflect regional groundwater flow upwards towards the land surface and towards raised bog landforms. In addition, high-resolution GPS measurements from data stations funded by this DOE project have shown this year that the peakland land surface elevation changes daily on a scale of cms, and seasonally on a scale of 10s of cm. This most recent observation is exciting because it may reflect episodic degassing of free phase methane from the peat column to the atmosphere, a source for methane previously unaccounted for by methane researchers.

Siegel, D.I.

1998-01-01T23:59:59.000Z

109

Field-project designs for carbon dioxide sequestration and enhanced coalbed methane production  

Science Conference Proceedings (OSTI)

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& G Technical Services, Morgantown, WV (United States). National Energy Technology Laboratory

2005-12-01T23:59:59.000Z

110

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

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

Production (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S....

111

Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production  

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

Seam Well Completion Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy Office of Fossil Energy and National Energy Technology Laboratory Strategic Center for Natural Gas September 2003 DOE/NETL-2003/1193 Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy National Energy Technology Laboratory (NETL) (Strategic Center for Natural Gas) DOE/NETL-2003/1193 September 2003 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal

112

Methane production from hog manure in small-scale units  

SciTech Connect

Fuel gas production from manure on small-sized (100 to 500 hogs) family-operated farms can become an economically sound proposition within a decade if current price rise trends for fossil fuels continue. Minimum plant cost resulting from an optimistic assumption of the state of digestion technology leads to a fuel gas cost about equal to LPG cost on a Btu basis. Hog farms with over 3000 animals would permit digester gas costs, which would match LPG cost. It may be better to build a plant before LPG costs rise to meet gas costs in order to take advantage of lower plant costs, which will generate future cost savings. The credit for gas produced makes digestion competitive with aerobic methods for manure disposal whose capital costs are much lower.

Silveston, P.L.

1976-01-01T23:59:59.000Z

113

Utilization of coal mine methane for methanol and SCP production. Topical report, May 5, 1995--March 4, 1996  

SciTech Connect

The feasibility of utilizing a biological process to reduce methane emissions from coal mines and to produce valuable single cell protein (SCP) and/or methanol as a product has been demonstrated. The quantities of coal mine methane from vent gas, gob wells, premining wells and abandoned mines have been determined in order to define the potential for utilizing mine gases as a resource. It is estimated that 300 MMCFD of methane is produced in the United States at a typical concentration of 0.2-0.6 percent in ventilation air. Of this total, almost 20 percent is produced from the four Jim Walter Resources (JWR) mines, which are located in very gassy coal seams. Worldwide vent gas production is estimated at 1 BCFD. Gob gas methane production in the U.S. is estimated to be 38 MMCFD. Very little gob gas is produced outside the U.S. In addition, it is estimated that abandoned mines may generate as much as 90 MMCFD of methane. In order to make a significant impact on coal mine methane emissions, technology which is able to utilize dilute vent gases as a resource must be developed. Purification of the methane from the vent gases would be very expensive and impractical. Therefore, the process application must be able to use a dilute methane stream. Biological conversion of this dilute methane (as well as the more concentrated gob gases) to produce single cell protein (SCP) and/or methanol has been demonstrated in the Bioengineering Resources, Inc. (BRI) laboratories. SCP is used as an animal feed supplement, which commands a high price, about $0.11 per pound.

1998-12-31T23:59:59.000Z

114

Geochemical assessment of gaseous hydrocarbons: mixing of bacterial and thermogenic methane in the deep subsurface petroleum system, Gulf of Mexico continental slope  

E-Print Network (OSTI)

Mixtures of bacterial and thermogenic methane are found both at vents at the seafloor and in reservoirs in the deep subsurface of the Gulf of Mexico continental slope. The C1-C5 gas that most recently charged reservoirs of Jolliet (GC 184), Genesis (GC 160/161) and Petronius (VK 786) fields is estimated to include 17%-28%, 31%-51%, 31%-49% bacterial methane, respectively. Geochemical assessment of the reservoir gas in the fields show that the gas may be the product of thermal cracking of Upper Jurassic crude oil before final migration to the reservoirs. The gas from three different fields is of similar thermal maturity levels. In contrast to oil in reservoirs in the fields, which shows biodegradation effects, the C1-C5 reservoir gas is unaltered by biodegradation. Late gas migration may have occurred at or near present burial depth and flushed the reservoir system of previously biodegraded hydrocarbon gas to include any previous bacterial methane. Molecular and isotopic properties of reservoir gas and oil suggest that bacterial methane mixed with thermogenic hydrocarbon gas before entering the reservoirs. Thus the source of the bacterial methane is logically deeper than the present depth (>~4 km) and temperatures of the reservoirs. High sedimentation rate and low geothermal gradient may offer conditions favorable for generation and preservation of bacterial methane in deep subsurface petroleum system of the Gulf slope. Bacterial methane dispersed across the large drainage areas of the deep subsurface petroleum system may have been swept by migrating fluids at >4 km, and then charged both vents (GC 185, GC 233 and GC 286) at the seafloor and reservoirs in the deep subsurface. The volume of bacterial methane from geologically significant depth in rapidly subsiding basins may be underestimated.

Ozgul, Ercin

2002-08-01T23:59:59.000Z

115

Methyl Chloride from Direct Methane Partial Oxidation: A High-Temperature Shilov-Like Catalytic System  

SciTech Connect

The intention of this study is to demonstrate and evaluate the scientific and economic feasibility of using special solvents to improve the thermal stability of Pt-catalyst in the Shilov system, such that a high reaction temperature could be achieved. The higher conversion rate (near 100%) of methyl chloride from partial oxidation of methane under the high temperature ({approx} 200 C) without significant Pt0 precipitation has been achieved. High concentration of the Cl- ion has been identified as the key for the stabilization of the Pt-catalysts. H/D exchange measurements indicated that the over oxidation will occur at the elevated temperature, developments of the effective product separation processes will be necessary in order to rationalize the industry-visible CH4 to CH3Cl conversion.

Yongchun Tang; John (Qisheng) Ma

2012-03-23T23:59:59.000Z

116

The landfill methane balance: Model and practical applications  

SciTech Connect

A rational mass-balance framework is described for improved quantification of landfill methane processes at a given site. The methane balance model examines the partitioning of methane generated into methane recovered (via extraction systems), methane emitted, methane oxidized, methane migrated, and methane storage. This model encourages use of field-based data to better quantify rates of methane recovery and emissions.

Bogner, J.; Spokas, K.

1995-10-01T23:59:59.000Z

117

Production of hydrobromic acid from bromine, methane and steam for hydrogen production. 1997 annual report, December 15, 1996--January 31, 1998  

DOE Green Energy (OSTI)

The solar-driven reaction between bromine and steam was studied. The goal was to make hydrobromic acid for hydrogen production and energy storage use via a reversible, high efficiency hydrogen/bromine fuel cell. While the reaction was technically successful and was demonstrated at NREL, it was determined to be uneconomical in today`s economy due to present high capital costs of the solar hardware. In an effort to provide for an interim process that can be utilized to produce hydrogen and store energy until the cost of solar hardware decreases, SRT`s process was modified to include the addition of methane. The new concept entails (i) reaction of bromine with methane and steam to produce hydrogen bromide and carbon dioxide and (ii) electrolysis of the stored hydrogen bromide for production of H{sub 2(g)} and recovery of Br{sub 2(1)}. Electrolyzers are available today for the electrolysis of HBr. In addition, a vendor for a reversible H{sub 2}-Br{sub 2} fuel has been identified. Most components of the envisioned system are commercially available. At present, the reactor needs the most development. In the SRT process, the electrical power required to split water is reduced effectively in half by the production of hydrogen bromide. The SRT concept is very attractive from an economic viewpoint as well. A reversible electrolytic fuel cell employed in the SRT process is capitalized via its use in load leveling by the utility. Thus, the price of SRT-produced hydrogen reflects only the cost of methane, reactor system capital costs and off-peak electrical power.

NONE

1998-07-17T23:59:59.000Z

118

Method and system for ethanol production  

DOE Patents (OSTI)

A transition metal carbonyl and a tertiary amine are employed as a homogeneous catalytic system in methanol or a less volatile solvent to react methanol with carbon monoxide and hydrogen gas producing ethanol and carbon dioxide. The gas contains a high carbon monoxide to hydrogen ratio as is present in a typical gasifier product. The reaction has potential for anhydrous ethanol production as carbon dioxide rather than water is produced. The only other significant by product is methane. Selected transition metal carbonyls include those of iron, ruthenium and possibly manganese and osmium. Selected amines include trimethylamine, N-Methylpyrrolidine, 24-diazabicyclooctane, dimethyneopentylamine and 2-pryidinol.

Feder, Harold M. (Darien, IL); Chen, Michael J. (Darien, IL)

1981-01-01T23:59:59.000Z

119

Method and system for ethanol production  

DOE Patents (OSTI)

A transition metal carbonyl and a tertiary amine are employed as a homogeneous catalytic system in methanol or a less volatile solvent to react methanol with carbon monoxide and hydrogen gas producing ethanol and carbon dioxide. The gas contains a high carbon monoxide to hydrogen ratio as is present in a typical gasifier product. The reaction has potential for anhydrous ethanol production as carbon dioxide rather than water is produced. The only other significant by-product is methane. Selected transition metal carbonyls include those of iron, ruthenium and possibly manganese and osmium. Selected amines include trimethylamine, N-Methylpyrrolidine, 24-diazabicyclooctane, dimethyneopentylamine and 2-pryidinol.

Feder, H.M.; Chen, M.J.

1980-05-21T23:59:59.000Z

120

Microbiological aspects of methane production during pig manure storage DABERT Patrick, VEDRENNE Fabien, BRARD Camille and BELINE Fabrice  

E-Print Network (OSTI)

during 120-150 days at 30°C. During the simulated storage, biogas production was monitored by pressure (and / or inoculation) had little impact on biogas production. Raw slury Diluted slurry Diluted (biogas) anaerobic digesters, thus having a beneficial impact on methane production. Acknowledgements Part

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "methane production system" 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

Production of hydrogen bromide by bromine-methane reactions at elevated temperature.  

SciTech Connect

Hydrogen bromide is a potentially useful intermediate for hydrogen production by electrolysis because it has a low cell potential and is extremely soluble in water. Processes have been proposed to exploit these properties, but among the important issues to be resolved is the efficiency of HBr production from hydrocarbon precursors. This investigation evaluated a fundamental facet of such a technology by studying the reaction of methane and bromine at elevated temperature to determine the yield and kinetics of HBr formation. Laboratory experimentation and computational chemistry were combined to provide a description of this reaction for possible application to reactor design at a larger scale. Experimental studies with a tubular flow reactor were used to survey a range of reactant ratios and reactor residence times at temperatures between 500 C and 800 C. At temperatures near 800 C with excess methane, conversions of bromine to HBr exceeded 90% and reaction products included solid carbon (soot) in stoichiometric amounts. At lower temperatures, HBr conversion was significantly reduced, the products included much less soot, and the formation of bromocarbon compounds was indicated qualitatively. Calculations of chemical equilibrium behavior and reaction kinetics for the experimental conditions were performed using the Sandia CHEMKIN package. An elementary multistep mechanism for the gas-phase chemistry was used together with a surface mechanism that assumed facile deposition of radical species at the reactor walls. Simulations with the laminar-flow boundary-layer code of the CHEMKIN package gave reasonable agreement with experimental data.

Bradshaw, Robert W.; Larson, Richard S.

2003-05-01T23:59:59.000Z

122

Effect of industrial by-products containing electron acceptors on mitigating methane emission during rice cultivation  

Science Conference Proceedings (OSTI)

Three industrial by-products (fly ash, phosphogypsum and blast furnace slag), were evaluated for their potential re-use as soil amendments to reduce methane (CH{sub 4}) emission resulting from rice cultivation. In laboratory incubations, CH{sub 4} production rates from anoxic soil slurries were significantly reduced at amendment levels of 0.5%, 1%, 2% and 5% (wt wt{sup -1}), while observed CO{sub 2} production rates were enhanced. The level of suppression in methane production was the highest for phosphogypsum, followed by blast slag and then fly ash. In the greenhouse experiment, CH{sub 4} emission rates from the rice planted potted soils significantly decreased with the increasing levels (2-20 Mg ha{sup -1}) of the selected amendments applied, while rice yield simultaneously increased compared to the control treatment. At 10 Mg ha{sup -1} application level of the amendments, total seasonal CH{sub 4} emissions were reduced by 20%, 27% and 25%, while rice grain yields were increased by 17%, 15% and 23% over the control with fly ash, phosphogypsum, and blast slag amendments, respectively. The suppression of CH{sub 4} production rates as well as total seasonal CH{sub 4} flux could be due to the increased concentrations of active iron, free iron, manganese oxides, and sulfate in the amended soil, which acted as electron acceptors and controlled methanogens' activity by limiting substrates availability. Among the amendments, blast furnace slag and fly ash contributed mainly to improve the soil nutrients balance and increased the soil pH level towards neutral point, but soil acidity was developed with phosphogypsum application. Conclusively, blast slag among the selected amendments would be a suitable soil amendment for reducing CH{sub 4} emissions as well as sustaining rice productivity.

Ali, Muhammad Aslam [Department of Environmental Science, Bangladesh Agricultural University, Mymensingh 2202 (Bangladesh); Lee, Chang Hoon [Functional Cereal Crop Research Division, National Institute of Crop Science, RDA, 1085, Naey-dong, Milyang (Korea, Republic of); Kim, Sang Yoon [Division of Applied Life Science, Graduate School (Brain Korea 21 Program), Gyeongsang National University, Jinju 660-701 (Korea, Republic of); Kim, Pil Joo [Division of Applied Life Science, Graduate School (Brain Korea 21 Program), Gyeongsang National University, Jinju 660-701 (Korea, Republic of); Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 660-701 (Korea, Republic of)], E-mail: pjkim@gnu.ac.kr

2009-10-15T23:59:59.000Z

123

Greenhouse gas emissions in biogas production systems  

E-Print Network (OSTI)

Augustin J et al. Automated gas chromatographic system forof the atmospheric trace gases methane, carbon dioxide, andfuel consumption and of greenhouse gas (GHG) emissions from

Dittert, Klaus; Senbayram, Mehmet; Wienforth, Babette; Kage, Henning; Muehling, Karl H

2009-01-01T23:59:59.000Z

124

Methane drainage with horizontal boreholes in advance of longwall mining: an analysis. Final report  

SciTech Connect

The US Department of Energy (DOE) Morgantown Energy Technology Center has implemented a comprehensive program to demonstrate the technical and economic viability of coalbed methane as an energy resource. The program is directed toward solution of technical and institutional problems impeding the recovery and use of large quantities of methane contained in the nation's minable and unminable coalbeds. Conducted in direct support of the DOE Methane Recovery from Coalbeds Project, this study analyzes the economic aspects of a horizontal borehole methane recovery system integrated as part of a longwall mine operation. It establishes relationships between methane selling price and annual mine production, methane production rate, and the methane drainage system capital investment. Results are encouraging, indicating that an annual coal production increase of approximately eight percent would offset all associated drainage costs over the range of methane production rates and capital investments considered.

Gabello, D.P.; Felts, L.L.; Hayoz, F.P.

1981-05-01T23:59:59.000Z

125

NIST: Methane Symmetry Operations - Introduction  

Science Conference Proceedings (OSTI)

Methane Symmetry Operations. ... At least three T d symmetry classification systems are widely used at present in the methane literature [5-13]. ...

126

Development of vanidum-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report, 1996  

DOE Green Energy (OSTI)

Activities this past quarter, focused on acquisition of kinetic data for oxidation of formaldehyde and methanol on these catalysts. In the next quarter these results will be used to propose a simple reaction network and kinetic model. To date we have completed Task 1: Laboratory Setup and Task 2: Process Variable Study. Activities in the current quarter focused on finalizing these tasks and on Task 3: Promoters and Supports, this task is approximately 50% completed. Task 4: Advanced Catalysts is to be initiated in the next quarter. Specific accomplishments this quarter include: finalizing and calibrating a new reaction product analytical system with markedly improved precision and accuracy relative to older. approaches; development of procedures for accurately feeding formaldehyde to the reactor; examination of formaldehyde and methanol oxidation kinetics over vanadyl pyrophosphate at a range of temperatures; and preliminary studies of methane oxidation over a silica support.

McCormick, R.L.; Alptekin, G.O.

1996-06-01T23:59:59.000Z

127

Potential for CO2 Sequestration and Enhanced Coalbed Methane Production, Blue Creek Field, NW Black Warrior Basin, Alabama  

E-Print Network (OSTI)

Carbon dioxide (CO2) is a primary source of greenhouse gases. Injection of CO2 from power plants near coalbed reservoirs is a win-win method to reducing emissions of CO2 to the atmosphere. Limited studies have investigated CO2 sequestration and enhanced coalbed methane production in San Juan and Alberta basins, but reservoir modeling is needed to assess the potential of the Black Warrior basin. Alabama ranks 9th nationally in CO2 emissions from power plants; two electricity generation plants are adjacent to the Black Warrior coalbed methane fairway. This research project was a reservoir simulation study designed to evaluate the potential for CO2 sequestration and enhanced coalbed methane (ECBM) recovery in the Blue Creek Field of Black Warrior basin, Alabama. It considered the injection and production rate, the components of injected gas, coal dewatering, permeability anisotropy, various CO2 soak times, completion of multiple reservoir layers and pressure constraints at the injector and producer. The simulation study was based on a 5-spot well pattern 40-ac well spacing. Injection of 100 percent CO2 in coal seams resulted in average volumes of 0.57 Bcf of sequestered CO2 and average volumes of 0.2 Bcf of enhance methane production for the Mary Lee coal zone only, from an 80-acre 5-spot well pattern. For the entire Blue Creek field of the Black Warrior basin, if 100 percent CO2 is injected in the Pratt, Mary Lee and Black Creek coal zones, enhance methane resources recovered are estimated to be 0.3 Tcf, with a potential CO2sequestration capacity of 0.88 Tcf. The methane recovery factor is estimated to be 68.8 percent, if the three coal zones are completed but produced one by one. Approximately 700 wells may be needed in the field. For multi-layers completed wells, the permeability and pressure are important in determining the breakthrough time, methane produced and CO2 injected. Dewatering and soaking do not benefit the CO2 sequestration process but allow higher injection rates. Permeability anisotropy affects CO2 injection and enhanced methane recovery volumes of the field. I recommend a 5-spot pilot project with the maximum well BHP of 1,000 psi at the injector, minimum well BHP of 500 psi at the producer, maximum injection rate of 70 Mscf/D, and production rate of 35 Mscf/D. These technical results, with further economic evaluation, could generate significant projects for CO2 sequestration and enhance coalbed methane production in Blue Creek field, Black Warrior Basin, Alabama.

He, Ting

2009-12-01T23:59:59.000Z

128

Resource Assessment & Production Testing for Coal Bed Methane in the Illinois Basin  

Science Conference Proceedings (OSTI)

In order to assess the economic coal bed methane potential of the Illinois Basin, the geological surveys of Illinois, Indiana and Kentucky performed a geological assessment of their respective parts of the Illinois Basin. A considerable effort went into generating cumulative coal thickness and bed structure maps to identify target areas for exploratory drilling. Following this, the first project well was drilled in White County, Illinois in October 2003. Eight additional wells were subsequently drilled in Indiana (3) and Kentucky (5) during 2004 and 2005. In addition, a five spot pilot completion program was started with three wells being completed. Gas contents were found to be variable, but generally higher than indicated by historical data. Gas contents of more than 300 scf/ton were recovered from one of the bore holes in Kentucky. Collectively, our findings indicate that the Illinois Basin represents a potentially large source of economic coal bed methane. Additional exploration will be required to refine gas contents and the economics of potential production.

Cortland Eble; James Drahovzal; David Morse; Ilham Demir; John Rupp; Maria Mastalerz; Wilfrido Solano

2005-11-01T23:59:59.000Z

129

Table 17. Coalbed methane proved reserves, reserves changes, and production, 2011  

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

Coalbed methane proved reserves, reserves changes, and production, 2011 Coalbed methane proved reserves, reserves changes, and production, 2011 billion cubic feet Published New Reservoir Proved Revision Revision New Field Discoveries Estimated Proved Reserves Adjustments Increases Decreases Sales Acquisitions Extensions Discoveries in Old Fields Production Reserves State and Subdivision 12/31/10 (+,-) (+) (-) (-) (+) (+) (+) (+) (-) 12/31/11 Alaska 0 0 0 0 0 0 0 0 0 0 0 Lower 48 States 17,508 -15 2,071 1,668 1,775 1,710 736 0 13 1,763 16,817 Alabama 1,298 -45 23 86 104 219 3 0 0 98 1,210 Arkansas 28 0 0 3 0 0 0 0 0 4 21 California 0 0 0 0 0 0 0 0 0 0 0 Colorado 6,485 73 698 367 1,034 1,021 220 0 0 516 6,580 Florida 0 0 0 0 0 0 0 0 0 0 0 Kansas 258 -6 24 14 0 0 3 0 0 37 228 Kentucky 0 0 0 0 0 0 0 0 0 0 0 Louisiana 0 0 0 0 0 0 0 0 0 0 0 North Onshore 0 0 0 0 0 0 0 0 0 0 0 South Onshore 0 0 0 0 0 0 0 0 0 0 0 State Offshore 0 0 0 0 0 0 0 0 0 0 0 Michigan 0 0 0 0 0 0 0 0 0 0 0 Mississippi 0 0 0 0 0 0 0 0 0

130

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, July 15, 1992--July 14, 1993  

SciTech Connect

The role of freshwater peatlands in the global methane cycle remains uncertain. Field measurements of methane emissions tend to be highly variable across a peatland and exhibit sharp seasonal fluctuations. The process of extrapolating these variable measurements to regional estimates is further complicated by rudimentary knowledge of the environmental controls can the production and emissions of methane from peat. The distribution of methanogenesis within the peat profile will strongly influence the response of methane emissions to potential climatic changes. During the summers of 1990 and 1991 we conducted a study on the mechanisms for the production, transport, and storage of methane within the Glacial Lake Agassiz peatland region as the regional climate shifted from extreme drought to a period of normal rainfall. This natural experiment provided unexpected insights on the linkages among climate, hydrology, and the methane cycle in large peat basins. This report presents project progress for period July 15, 1992--July 14, 1993

Siegel, D.I.

1993-06-24T23:59:59.000Z

131

Processing cellulosic solids for methane production by a combined chemical and biological process  

Science Conference Proceedings (OSTI)

Cellulosic solids are pretreated by calcium hydroxide to produce salts of volatile organic acids and other water-soluble substances. Pure cellulose, sawdust, and waste paper are used as model substances for the study of alkaline degradation. It was found that sawdust is more difficult to degrade than the other two substances. The cooking conditions for high conversion of model substance and high yield of organic acids are found to be 275/sup 0/C to 300/sup 0/C with the corresponding reaction time from 30 to 15 minutes. The cooking liquor can be readily fermented in an anaerobic fluidized-bed digester for methane production. The cooking liquor from different reaction conditions can all be digested by the methanogens. Higher than 90% of COD can be removed under the conditions of low organic loading rate (<2.0 g COD/1/day) and low hydraulic retention time (1.5-2.0 days).

Tsai, G.J.; Tsao, G.T.

1987-01-01T23:59:59.000Z

132

Study on the Methane Production Capacity and Energy Output of Different Temperatures during Anaerobic Digestion of Swine Manure  

Science Conference Proceedings (OSTI)

This study was carried out by experimenting with the self-manufactured digestion devices which were fed with swine manure as material with a domesticated inoculums added as yeast. The experiment was on the condition of 6.6% mass fraction of total solid, ... Keywords: anaerobic digestion, methane production capacity, temperature, energy, swine manure

Rong-rong Wei; Guan-wen Cheng; Jie-jun Luo; Liang Ling; Zong-qiang Zhu; Xu Shan; Wen-yuan Wei

2009-10-01T23:59:59.000Z

133

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

134

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 10, July 1, 1995--September 31, 1995  

DOE Green Energy (OSTI)

This document is the tenth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes}. Activities focused on testing of additional modified and promoted catalysts and characterization of these materials. Attempts at improving the sensitivity of our GC based analytical systems were also made with some success. Methanol oxidation studies were initiated. These results are reported. Specific accomplishments include: (1) Methane oxidation testing of a suite of catalysts promoted with most of the first row transition metals was completed. Several of these materials produced low, difficult to quantify yields of formaldehyde. (2) Characterization of these materials by XRD and FTIR was performed with the goal of correlating activity and selectivity with catalyst properties. (3) We began to characterize catalysts prepared via modified synthesis methods designed to enhance acidity using TGA measurements of acetonitrile chemisorption and methanol dehydration to dimethyl ether as a test reaction. (4) A catalyst prepared in the presence of naphthalene methanol as a structural disrupter was tested for activity in methane oxidation. It was found that this material produced low yields of formaldehyde which were difficult to quantify. (5) Preparation of catalysts with no Bronsted acid sites. This was accomplished by replacement of exchangeable protons with potassium, and (6) Methanol oxidation studies were initiated to provide an indication of catalyst activity for decomposition of this desired product and as a method of characterizing the catalyst surface.

McCormick, R.L.

1995-12-07T23:59:59.000Z

135

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report No. 9, April 1995--June 1995  

DOE Green Energy (OSTI)

This document is the ninth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes}. Activities were focused on fine tuning of the microreactor system by elimination of transport effects and improvements in the analytical system. Process variable studies were conducted on vanadyl pyrophosphate and screening studies were conducted on several modified catalyst. One additional catalyst was prepared and characterization studies continued. These results are reported.

McCormick, R.L.

1995-09-14T23:59:59.000Z

136

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland  

SciTech Connect

Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dioxide, and dissolved organic carbon form the deeper portions of these peatlands is unknown. Our DOE research program is to conduct an integrated ecologic and hydrogeochemical study of the Glacial Lake Agassiz peatlands (northern Minnesota) to better understand the carbon dynamics in globally significant peat basins. Specifically, our study will provide local and regional data on (1), rates of carbon accumulation and loss and fluxes of methane in the peat profiles; (2) the physical and botanical factors controlling the production of methane and carbon dioxide in the wetland; and (3) the role of hydrogeologic processes in controlling the fluxes of gases and solutes through the peat. We intend to use computer simulation models, calibrated to field data, to scale-up from local to regional estimates of methane and carbon dioxide within the basin. How gases and dissolved organic carbon escapes form peatlands in unknown. It has been suggested that the concentrations of methane produced in the upper peat are sufficient to produce diffusion gradients towards the surface. Alternatively, gas may move through the peat profile by groundwater advection.

Siegel, D.I.

1992-04-09T23:59:59.000Z

137

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly report, July - September 1996  

DOE Green Energy (OSTI)

This document covers the period July-September, 1996. Activities included studies of the oxidation of dimethyl ether over vanadyl pyrophosphate and synthesis of all previously acquired kinetic data. This synthesis revealed the need for additional data on methane and methanol oxidation and these experiments were performed. A further series of methanol oxidation/dehydration experiments was conducted on samples with varying surface acidity that have been described in earlier reports. Oxidation of methane over Cr- promoted VPO was also reinvestigated. The kinetic studies performed to date allow us to determine optimum conditions for methanol and formaldehyde production from methane using VPO catalysts, and in particular determine the effect of lean conditions (excess oxygen), oxygen deficient conditions (used in most other methane oxidation studies), and the potential of using the catalyst as a stoichiometric oxidant or oxygen carrier. However, unpromoted VPO yields only CO as the primary oxidation product. Studies of promoters have shown improvements in the formaldehyde selectivity but no methanol has been observed. The best promoters tested have been Fe and Cr (results for Cr are described in this report). We have also examined the use of iron phosphate for the methane conversion reaction. FePO{sub 4}is a more selectivity catalyst than the promoted VPO materials. Support of this iron phosphate on silica results in further improvements in selectivity. Current work is directed at understanding the improved selectivity for promoted VPO and at obtaining a knowledge of the optimum conditions for methane conversion of iron phosphate. 15 refs., 2 figs., 1 tab.

McCormick, R.L.; Alptekin, G.O.

1996-12-01T23:59:59.000Z

138

UNDERSTANDING METHANE EMISSIONS SOURCES AND VIABLE MITIGATION MEASURES IN THE NATURAL GAS TRANSMISSION SYSTEMS: RUSSIAN AND U.S. EXPERIENCE  

Science Conference Proceedings (OSTI)

This article will compare the natural gas transmission systems in the U.S. and Russia and review experience with methane mitigation technologies in the two countries. Russia and the United States (U.S.) are the world's largest consumers and producers of natural gas, and consequently, have some of the largest natural gas infrastructure. This paper compares the natural gas transmission systems in Russia and the U.S., their methane emissions and experiences in implementing methane mitigation technologies. Given the scale of the two systems, many international oil and natural gas companies have expressed interest in better understanding the methane emission volumes and trends as well as the methane mitigation options. This paper compares the two transmission systems and documents experiences in Russia and the U.S. in implementing technologies and programs for methane mitigation. The systems are inherently different. For instance, while the U.S. natural gas transmission system is represented by many companies, which operate pipelines with various characteristics, in Russia predominately one company, Gazprom, operates the gas transmission system. However, companies in both countries found that reducing methane emissions can be feasible and profitable. Examples of technologies in use include replacing wet seals with dry seals, implementing Directed Inspection and Maintenance (DI&M) programs, performing pipeline pump-down, applying composite wrap for non-leaking pipeline defects and installing low-bleed pneumatics. The research methodology for this paper involved a review of information on methane emissions trends and mitigation measures, analytical and statistical data collection; accumulation and analysis of operational data on compressor seals and other emission sources; and analysis of technologies used in both countries to mitigate methane emissions in the transmission sector. Operators of natural gas transmission systems have many options to reduce natural gas losses. Depending on the value of gas, simple, low-cost measures, such as adjusting leaking equipment components, or larger-scale measures, such as installing dry seals on compressors, can be applied.

Ishkov, A.; Akopova, Gretta; Evans, Meredydd; Yulkin, Grigory; Roshchanka, Volha; Waltzer, Suzie; Romanov, K.; Picard, David; Stepanenko, O.; Neretin, D.

2011-10-01T23:59:59.000Z

139

U.S. and Japan Complete Successful Field Trial of Methane Hydrate Production Technologies  

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

Methane Hydrates May Exceed the Energy Content of All Other Fossil Fuels Combined; Could Ensure Decades of Affordable Natural Gas and Cut America’s Foreign Oil Dependence

140

Evaluation of Phytoremediation of Coal Bed Methane Product Water and Waters of Quality Similar to that Associated with Coal Bed Methane Reserves of the Powder River Basin, Montana and Wyoming  

SciTech Connect

U.S. emphasis on domestic energy independence, along with advances in knowledge of vast biogenically sourced coalbed methane reserves at relatively shallow sub-surface depths with the Powder River Basin, has resulted in rapid expansion of the coalbed methane industry in Wyoming and Montana. Techniques have recently been developed which constitute relatively efficient drilling and methane gas recovery and extraction techniques. However, this relatively efficient recovery requires aggressive reduction of hydrostatic pressure within water-saturated coal formations where the methane is trapped. Water removed from the coal formation during pumping is typically moderately saline and sodium-bicarbonate rich, and managed as an industrial waste product. Current approaches to coalbed methane product water management include: surface spreading on rangeland landscapes, managed irrigation of agricultural crop lands, direct discharge to ephermeral channels, permitted discharge of treated and untreated water to perennial streams, evaporation, subsurface injection at either shallow or deep depths. A Department of Energy-National Energy Technology Laboratory funded research award involved the investigation and assessment of: (1) phytoremediation as a water management technique for waste water produced in association with coalbed methane gas extraction; (2) feasibility of commercial-scale, low-impact industrial water treatment technologies for the reduction of salinity and sodicity in coalbed methane gas extraction by-product water; and (3) interactions of coalbed methane extraction by-product water with landscapes, vegetation, and water resources of the Powder River Basin. Prospective, greenhouse studies of salt tolerance and water use potential of indigenous, riparian vegetation species in saline-sodic environments confirmed the hypothesis that species such as Prairie cordgrass, Baltic rush, American bulrush, and Nuttall's alkaligrass will thrive in saline-sodic environments when water supplies sourced from coalbed methane extraction are plentiful. Constructed wetlands, planted to native, salt tolerant species demonstrated potential to utilize substantial volumes of coalbed methane product water, although plant community transitions to mono-culture and limited diversity communities is a likely consequence over time. Additionally, selected, cultured forage quality barley varieties and native plant species such as Quail bush, 4-wing saltbush, and seaside barley are capable of sustainable, high quality livestock forage production, when irrigated with coalbed methane product water sourced from the Powder River Basin. A consequence of long-term plant water use which was enumerated is elevated salinity and sodicity concentrations within soil and shallow alluvial groundwater into which coalbed methane product water might drain. The most significant conclusion of these investigations was the understanding that phytoremediation is not a viable, effective technique for management of coalbed methane product water under the present circumstances of produced water within the Powder River Basin. Phytoremediation is likely an effective approach to sodium and salt removal from salt-impaired sites after product water discharges are discontinued and site reclamation is desired. Coalbed methane product water of the Powder River Basin is most frequently impaired with respect to beneficial use quality by elevated sodicity, a water quality constituent which can cause swelling, slaking, and dispersion of smectite-dominated clay soils, such as commonly occurring within the Powder River Basin. To address this issue, a commercial-scale fluid-bed, cationic resin exchange treatment process and prototype operating treatment plant was developed and beta-tested by Drake Water Technologies under subcontract to this award. Drake Water Technologies secured U.S. Patent No. 7,368,059-B2, 'Method for removal of benevolent cations from contaminated water', a beta Drake Process Unit (DPU) was developed and deployed for operation in the Powder River Basin. First year operatio

James Bauder

2008-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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)

represent components of dynamic biogeochemical environments with inputs and outputs of methane, accurate rates of biological methane production are poorly understood. Recent...

142

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

143

Simulation study of the effect of well spacing, effect of permeability anisotropy, and effect of Palmer and Mansoori model on coalbed methane production  

E-Print Network (OSTI)

Interference for adjacent wells may be beneficial to Coalbed-Methane production. The effect is the acceleration of de-watering which should lead to earlier and higher gas rate peaks. It is inherent that permeability anisotropy exists in the coalbed methane formation. It means that the placement of wells (wells configuration) has an effect on the development of coalbed methane field. The effect of Palmer-Mansoori Theory is increasing effective permeability at lower pressures due to matrix shrinkage during desorption. This effect should increase the gas recovery of coalbed methane production. Palmer and Mansoori model should be considered and included to coalbed methane reservoir simulation. These effects and phenomena can be modeled with the CMG simulator. A systematic sensitivity study of various reservoir and operating parameters will result in generalized guidelines for operating these reservoirs more effectively.

Zulkarnain, Ismail

2005-12-01T23:59:59.000Z

144

Geothermal source potential and utilization for methane generation and alcohol production  

DOE Green Energy (OSTI)

A study was conducted to assess the technical and economic feasibility of integrating a geothermally heated anaerobic digester with a fuel alcohol plant and cattle feedlot. Thin stillage produced from the alcohol production process and manure collected from the cattle feedlot would be digested in anaerobic digesters to produce biogas, a mixture of methane and carbon dioxide, and residue. The energy requirements to maintain proper digester temperatures would be provided by geothermal water. The biogas produced in the digesters would be burned in a boiler to produce low-pressure steam which would be used in the alcohol production process. The alcohol plant would be sized so that the distiller's grains byproduct resulting from the alcohol production would be adequate to supply the daily cattle feed requirements. A portion of the digester residue would substitute for alfalfa hay in the cattle feedlot ration. The major design criterion for the integrated facilty was the production of adequate distiller's grain to supply the daily requirements of 1700 head of cattle. It was determined that, for a ration of 7 pounds of distiller's grain per head per day, a 1 million gpy alcohol facility would be required. An order-of-magnitude cost estimate was prepared for the proposed project, operating costs were calculated for a facility based on a corn feedstock, the economic feasibility of the proposed project was examined by calculating its simple payback, and an analysis was performed to examine the sensitivity of the project's economic viability to variations in feedstock costs and alcohol and distiller's grain prices.

Austin, J.C.

1981-11-01T23:59:59.000Z

145

Dry matter losses during hay production and storage of sweet sorghum used for methane production  

SciTech Connect

Losses from production and storage of large round hay bales from sweet sorghum were measured. Dry matter losses from hay production were 55.3%. Storage losses were 18.1% and 10.1% for outdoor and indoor storage, respectively. It was concluded hay storage of sweet sorghum used for anaerobic digestion is not a viable option.

Coble, C.G.; Egg, R.

1987-01-01T23:59:59.000Z

146

Processing high solids concentration of municipal solid waste by anaerobic digester for methane production  

SciTech Connect

Cellulosic solids are pretreated by calcium hydroxide to produce salts of volatile orangic acids and other water-soluble substances. Pure cellulose, sawdust, and waste paper are used as model substances for the study of alkaline degradation. It is found that sawdust is more difficult to degrade than the other two substances. The cooking conditions for high conversion of model substances and high yeild of orangic acids are found to be 275/degree/C to 300/degree/C with the corresponding reaction time from 30 minutes to 15 minutes. The cooking liquor can be readily fermented in an anaerobic fluidized-bed digester for methane production. The cooking liquor from different reaction conditions can all be digested by the methanogens. Higher than 90% of COD can be removed under the conditions of low organic loading rate (<2.0 g COD/1/day) and low hydraulic retention time (1.5 to 2.0 days). 14 refs., 10 figs., 2 tabs.

Tsao, G.T.

1988-01-01T23:59:59.000Z

147

Methane to methanol conversion  

DOE Green Energy (OSTI)

The purpose of this project is to develop a novel process by which natural gas or methane from coal gasification products can be converted to a transportable liquid fuel. It is proposed that methanol can be produced by the direct, partial oxidation of methane utilizing air or oxygen. It is anticipated that, compared to present technologies, the new process might offer significant economic advantages with respect to capital investment and methane feedstock purity requirements. Results to date are discussed. 6 refs.

Finch, F.T.; Danen, W.C.; Lyman, J.L.; Oldenborg, R.C.; Rofer, C.K.; Ferris, M.J.

1990-01-01T23:59:59.000Z

148

The basics of coalbed methane  

Science Conference Proceedings (OSTI)

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

149

Drilling and Production Testing the Methane Hydrate Resource Potential Associated with the Barrow Gas Fields  

SciTech Connect

In November of 2008, the Department of Energy (DOE) and the North Slope Borough (NSB) committed funding to develop a drilling plan to test the presence of hydrates in the producing formation of at least one of the Barrow Gas Fields, and to develop a production surveillance plan to monitor the behavior of hydrates as dissociation occurs. This drilling and surveillance plan was supported by earlier studies in Phase 1 of the project, including hydrate stability zone modeling, material balance modeling, and full-field history-matched reservoir simulation, all of which support the presence of methane hydrate in association with the Barrow Gas Fields. This Phase 2 of the project, conducted over the past twelve months focused on selecting an optimal location for a hydrate test well; design of a logistics, drilling, completion and testing plan; and estimating costs for the activities. As originally proposed, the project was anticipated to benefit from industry activity in northwest Alaska, with opportunities to share equipment, personnel, services and mobilization and demobilization costs with one of the then-active exploration operators. The activity level dropped off, and this benefit evaporated, although plans for drilling of development wells in the BGF's matured, offering significant synergies and cost savings over a remote stand-alone drilling project. An optimal well location was chosen at the East Barrow No.18 well pad, and a vertical pilot/monitoring well and horizontal production test/surveillance well were engineered for drilling from this location. Both wells were designed with Distributed Temperature Survey (DTS) apparatus for monitoring of the hydrate-free gas interface. Once project scope was developed, a procurement process was implemented to engage the necessary service and equipment providers, and finalize project cost estimates. Based on cost proposals from vendors, total project estimated cost is $17.88 million dollars, inclusive of design work, permitting, barging, ice road/pad construction, drilling, completion, tie-in, long-term production testing and surveillance, data analysis and technology transfer. The PRA project team and North Slope have recommended moving forward to the execution phase of this project.

Steve McRae; Thomas Walsh; Michael Dunn; Michael Cook

2010-02-22T23:59:59.000Z

150

Dry-thermophilic anaerobic digestion of organic fraction of municipal solid waste: Methane production modeling  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Methane generation may be modeled by means of modified product generation model of Romero Garcia (1991). Black-Right-Pointing-Pointer Organic matter content and particle size influence the kinetic parameters. Black-Right-Pointing-Pointer Higher organic matter content and lower particle size enhance the biomethanization. - Abstract: The influence of particle size and organic matter content of organic fraction of municipal solid waste (OFMSW) in the overall kinetics of dry (30% total solids) thermophilic (55 Degree-Sign C) anaerobic digestion have been studied in a semi-continuous stirred tank reactor (SSTR). Two types of wastes were used: synthetic OFMSW (average particle size of 1 mm; 0.71 g Volatile Solids/g waste), and OFMSW coming from a composting full scale plant (average particle size of 30 mm; 0.16 g Volatile Solids/g waste). A modification of a widely-validated product-generation kinetic model has been proposed. Results obtained from the modified-model parameterization at steady-state (that include new kinetic parameters as K, Y{sub pMAX} and {theta}{sub MIN}) indicate that the features of the feedstock strongly influence the kinetics of the process. The overall specific growth rate of microorganisms ({mu}{sub max}) with synthetic OFMSW is 43% higher compared to OFMSW coming from a composting full scale plant: 0.238 d{sup -1} (K = 1.391 d{sup -1}; Y{sub pMAX} = 1.167 L CH{sub 4}/gDOC{sub c}; {theta}{sub MIN} = 7.924 days) vs. 0.135 d{sup -1} (K = 1.282 d{sup -1}; Y{sub pMAX} = 1.150 L CH{sub 4}/gDOC{sub c}; {theta}{sub MIN} = 9.997 days) respectively. Finally, it could be emphasized that the validation of proposed modified-model has been performed successfully by means of the simulation of non-steady state data for the different SRTs tested with each waste.

Fdez-Gueelfo, L.A., E-mail: alberto.fdezguelfo@uca.es [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Alvarez-Gallego, C. [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Sales, D. [Department of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Romero Garcia, L.I. [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain)

2012-03-15T23:59:59.000Z

151

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 11, October--December 1995  

DOE Green Energy (OSTI)

Activities during this report period focused on testing of additional modified and promoted catalysts and characterization of these materials. Methanol oxidation studies were performed as a method of acid site characterization. Improvements to the product gas analysis system continued to be developed. These results are reported. Specific accomplishments include: (1) Obtaining and interpreting infrared spectra of modified catalysts prepared to enhance surface acidity. (2) Testing of these catalysts in methanol oxidation as a method of acid site characterization and to determine catalytic activity for conversion of this desired product. Catalysts were quite active for methanol conversion to dimethyl ether. Two of the modified catalysts prepared in this work exhibited the highest activity for this reaction, presumably because of their higher surface areas. (3) Determination that acidity modifications had no effect on activity for methane conversion.

McCormick, R.L.

1996-04-16T23:59:59.000Z

152

EFFECTS OF TEMPERATURE AND GAS MIXING ON FORMATION PRESSURE, CO2 SEQUESTRATION AND METHANE PRODUCTION IN  

E-Print Network (OSTI)

(CO2) injected into subsurface coalbeds replaces adsorbed methane (CH4) on coal surfaces, allowing and levels of CO2 adsorption on coal surfaces, and swelling/shrinkage of coal due to adsorption of CO2 injection. (3) CO2 is more than twice as adsorbing on coal as CH4, and remains tightly bound to coal

153

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 reservoir simulation model reflects the response of a reservoir system and the relationship among coalbed methane reservoir properties, operation procedures, and gas production. This work presents a procedure to select the optimum well spacing scenario by using a reservoir simulation. This work uses a two-phase compositional simulator with a dual porosity model to investigate well-spacing effects on coalbed methane production performance and methane recovery. Because of reservoir parameters uncertainty, a sensitivity and parametric study are required to investigate the effects of parameter variability on coalbed methane reservoir production performance and methane recovery. This thesis includes a reservoir parameter screening procedures based on a sensitivity and parametric study. Considering the tremendous amounts of simulation runs required, this work uses a regression analysis to replace the numerical simulation model for each wellspacing scenario. A Monte Carlo simulation has been applied to present the probability function. Incorporated with the Monte Carlo simulation approach, this thesis proposes a well-spacing study procedure to determine the optimum coalbed methane development scenario. The study workflow is applied in a North America basin resulting in distinct Net Present Value predictions between each well-spacing design and an optimum range of well-spacing for a particular basin area.

Sinurat, Pahala Dominicus

2010-12-01T23:59:59.000Z

154

Why not methane--5. Delivering methane  

SciTech Connect

A discussion showed that the methane delivery system in the U.S. consists of 350,000 mi of underground high-pressure pipelines, 650,000 mi of distribution mains and connections to 45 million energy users. This delivery system now carries much less natural gas than it could carry because of the regulation-caused shortages of recent years. The delivery system is also connected to an efficient storage system of exhausted underground gas wells into which methane from any source (e.g., gasification of coal or vegetation) could be pumped and then recovered as needed. This storage system could be readily expanded and could thus be used for strategic storage of methane. Enough methane could be stored to replace foreign oil if the foreign supply should be interrupted; and methane can be quickly delivered nation-wide, whereas strategic oil storage requires unusual and expensive provisions for delivery. Natural gas usage could be increased by 20Vertical Bar3< in two years and would reduce payments for imported oil by about $10 billion. Doubling the amount of methane used in the U.S. would eliminate the need for foreign oil entirely.

Luntey, E.

1979-01-01T23:59:59.000Z

155

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

156

Utah Coalbed Methane Proved Reserves New Field Discoveries (Billion...  

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

Release Date: 812013 Next Release Date: 812014 Referring Pages: Coalbed Methane New Field Discoveries Utah Coalbed Methane Proved Reserves, Reserves Changes, and Production...

157

Storage of methane as volatile fatty acids for intermittent fuel use  

SciTech Connect

A process for on-site production of methane from sweet potato canning wastes was developed. In this process methane is stored conveniently as a liquid in the form of organic acids which are produced in an acid pond. When methane is needed, the acids are pumped into a methane pond underneath a sludge blanket, where high rates of methane production begin shortly after feeding. A demonstration plant has been designed and is being constructed using the existing pond system and facilities in a sweet potato canning factory in Louisiana. The methane produced is burned on-site to generate process steam for use in the main plant. 14 references, 10 figures, 3 tables.

Nghiem, N.P.; Mehta, K.; Callihan, C.D.

1983-01-01T23:59:59.000Z

158

RESOURCE ASSESSMENT & PRODUCTION TESTING FOR COAL BED METHANE IN THE ILLINOIS BASIN  

SciTech Connect

The geological surveys of Illinois, Indiana and Kentucky have completed the initial geologic assessment of their respective parts of the Illinois Basin. Cumulative thickness maps have been generated and target areas for drilling have been selected. The first well in the Illinois area of the Illinois Basin coal bed methane project was drilled in White County, Illinois in October 2003. This well was cored in the major coal interval from the Danville to the Davis Coals and provided a broad spectrum of samples for further analyses. Sixteen coal samples and three black shale samples were taken from these cores for canister desorption tests and were the subject of analyses that were completed over the following months, including desorbed gas volume, gas chemical and isotope composition, coal proximate, calorific content and sulfur analyses. Drilling programs in Indiana and Kentucky are expected to begin shortly.

Cortland Eble; James Drahovzal; David Morse; Ilham Demir; John Rupp; Maria Mastalerz; Wilfrido Solano

2004-06-01T23:59:59.000Z

159

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

E-Print Network (OSTI)

and animal production; and fossil fuel use in production andas a result of burning fossil fuels for production of feedcrops. 67 Fossil fuel burning and "land-use changes, which

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

160

Extracting value from coal mine methane  

Science Conference Proceedings (OSTI)

Emerging US policy to regulate greenhouse gas (GHG) emissions through a cap-and-trade program presents mine managers with a new opportunity to explore and develop methane utilization or abatement projects that generate value from the anodization of carbon offset credits. In addition, the rising focus on US energy security and domestic energy supply is promoting mine managers and engineers to give further consideration to the importance of their methane gas by-products. The market through which coal mine methane offset projects can be developed and carbon offset credits monetized is quickly maturing. While many methane utilization projects have previously been uneconomical, the carbon offset credit market provides a new set of financing tools for mine engineers to capitalize these projects today. Currently , there are two certification programs that have approved project protocols for CMM projects. The Voluntary Carbon Standard (VCS) offers a methodology approved under the Clean Development Mechanism, the international compliance based offset market under the Kyoto Protocol. The VCS protocol is applicable to projects that combust ventilation air methane (VAM) and methane extracted from pre-and post-mine drainage systems. The Chicago Climate Exchange (CCX), which operates a voluntary yet binding cap-and-trade market, also has an approved protocol for CMM projects. CCX's protocol can be applied to projects combusting VAM, and methane extracted from pre-and-post-mine drainage systems, as well as abandoned mines. The article describes two case studies - Developing a gob gas utilization project financed by carbon offset credits and First VAM oxidation system to be commissioned at an operating mine in the US. 1 tab., 4 photos.

Liebert, B. [Verdao Group (United States)

2009-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, January 15, 1991--July 14, 1992  

SciTech Connect

Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dioxide, and dissolved organic carbon form the deeper portions of these peatlands is unknown. Our DOE research program is to conduct an integrated ecologic and hydrogeochemical study of the Glacial Lake Agassiz peatlands (northern Minnesota) to better understand the carbon dynamics in globally significant peat basins. Specifically, our study will provide local and regional data on (1), rates of carbon accumulation and loss and fluxes of methane in the peat profiles; (2) the physical and botanical factors controlling the production of methane and carbon dioxide in the wetland; and (3) the role of hydrogeologic processes in controlling the fluxes of gases and solutes through the peat. We intend to use computer simulation models, calibrated to field data, to scale-up from local to regional estimates of methane and carbon dioxide within the basin. How gases and dissolved organic carbon escapes form peatlands in unknown. It has been suggested that the concentrations of methane produced in the upper peat are sufficient to produce diffusion gradients towards the surface. Alternatively, gas may move through the peat profile by groundwater advection.

Siegel, D.I.

1992-04-09T23:59:59.000Z

162

Toyota production system.  

E-Print Network (OSTI)

??Background: There are various manufacturing methods and systems in automobile industries throughout the world. Of these, many practice lean manufacturing methods. The most effective and… (more)

Vyas, Kewalkumar Chandrakant

2011-01-01T23:59:59.000Z

163

EIA - Greenhouse Gas Emissions - Methane Emissions  

Gasoline and Diesel Fuel Update (EIA)

oil production dropping by 28 percent from 1990 to 2009, methane emissions from petroleum exploration and production have declined by the same percentage. Residential wood...

164

Dense ceramic membranes for converting methane to syngas  

DOE Green Energy (OSTI)

Dense mixed-oxide ceramics capable of conducting both electrons and oxygen ions are promising materials for partial oxygenation of methane to syngas. We are particularly interested in an oxide based on the Sr-Fe-Co-O system. Dense ceramic membrane tubes have been fabricated by a plastic extrusion technique. The sintered tubes were then used to selectively transport oxygen from air through the membrane to make syngas without the use of external electrodes. The sintered tubes have operated for >1000 h, and methane conversion efficiencies of >98% have been observed. Mechanical properties, structural integrity of the tubes during reactor operation, results of methane conversion, selectivity of methane conversion products, oxygen permeation, and fabrication of multichannel configurations for large-scale production of syngas will be presented.

Balachandran, U.; Dusek, J.T.; Picciolo, J.J.; Ma, B.; Maiya, P.S.; Mieville, R.L. [Argonne National Lab., IL (United States); Kleefisch, M.S.; Udovich, C.A. [Amoco Exploration/Production, Naperville, IL (United States)

1995-07-01T23:59:59.000Z

165

Mitigation of methane emission from Fakse landfill using a biowindow system  

Science Conference Proceedings (OSTI)

Landfills are significant sources of atmospheric methane (CH{sub 4}) that contributes to climate change, and therefore there is a need to reduce CH{sub 4} emissions from landfills. A promising cost efficient technology is to integrate compost into landfill covers (so-called 'biocovers') to enhance biological oxidation of CH{sub 4}. A full scale biocover system to reduce CH{sub 4} emissions was installed at Fakse landfill, Denmark using composted yard waste as active material supporting CH{sub 4} oxidation. Ten biowindows with a total area of 5000 m{sup 2} were integrated into the existing cover at the 12 ha site. To increase CH{sub 4} load to the biowindows, leachate wells were capped, and clay was added to slopes at the site. Point measurements using flux chambers suggested in most cases that almost all CH{sub 4} was oxidized, but more detailed studies on emissions from the site after installation of the biocover as well as measurements of total CH{sub 4} emissions showed that a significant portion of the emission quantified in the baseline study continued unabated from the site. Total emission measurements suggested a reduction in CH{sub 4} emission of approximately 28% at the end of the one year monitoring period. This was supported by analysis of stable carbon isotopes which showed an increase in oxidation efficiency from 16% to 41%. The project documented that integrating approaches such a whole landfill emission measurements using tracer techniques or stable carbon isotope measurements of ambient air samples are needed to document CH{sub 4} mitigation efficiencies of biocover systems. The study also revealed that there still exist several challenges to better optimize the functionality. The most important challenges are to control gas flow and evenly distribute the gas into the biocovers.

Scheutz, Charlotte, E-mail: chs@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej - Building 113, 2800 Kongens Lyngby (Denmark); Fredenslund, Anders M., E-mail: amf@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej - Building 113, 2800 Kongens Lyngby (Denmark); Chanton, Jeffrey, E-mail: jchanton@fsu.edu [Department of Earth, Ocean and Atmospheric Science, 117 N. Woodward Avenue, Florida State University, Tallahassee, Fl 32306-4320 (United States); Pedersen, Gitte Bukh, E-mail: gbp@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej - Building 113, 2800 Kongens Lyngby (Denmark); Kjeldsen, Peter, E-mail: pk@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej - Building 113, 2800 Kongens Lyngby (Denmark)

2011-05-15T23:59:59.000Z

166

Where can I find shale gas and coal bed methane production and ...  

U.S. Energy Information Administration (EIA)

Where is the boundary for state and federal offshore oil and gas production? Which states consume and produce the most natural gas?

167

Influence of coal quality factors on seam permeability associated with coalbed methane production.  

E-Print Network (OSTI)

??Cleats are natural fractures in coal that serve as permeability avenues for darcy flow of gas and water to the well bore during production. Theoretically,… (more)

Wang, Xingjin

2007-01-01T23:59:59.000Z

168

U.S. and Japan Complete Successful Field Trial of Methane Hydrate...  

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

Japan Complete Successful Field Trial of Methane Hydrate Production Technologies U.S. and Japan Complete Successful Field Trial of Methane Hydrate Production Technologies May 2,...

169

Particulate Waste Product Combustion System  

E-Print Network (OSTI)

The disposal of low value by-products from the processing of agricultural food crops presents many energy consuming problems to the food producing industry. Consequently, industry has the continuous problem of utilization or disposal of the by-products within the frame work of its economic structure. The system presented here is an approach to an economical way of utilizing waste by-products for an energy source there-by reducing dependency on traditional fuel sources.

King, D. R.; Chastain, C. E.

1984-01-01T23:59:59.000Z

170

ENHANCED COAL BED METHANE PRODUCTION AND SEQUESTRATION OF CO2 IN UNMINEABLE COAL SEAMS  

Science Conference Proceedings (OSTI)

The availability of clean, affordable energy is essential for the prosperity and security of the United States and the world in the 21st century. Emissions of carbon dioxide (CO{sub 2}) into the atmosphere are an inherent part of electricity generation, transportation, and industrial processes that rely on fossil fuels. These energy-related activities are responsible for more than 80 percent of the U.S. greenhouse gas emissions, and most of these emissions are CO{sub 2}. Over the last few decades, an increased concentration of CO{sub 2} in the earth's atmosphere has been observed. Carbon sequestration technology offers an approach to redirect CO{sub 2} emissions into sinks (e.g., geologic formations, oceans, soils and vegetation) and potentially stabilize future atmospheric CO{sub 2} levels. Coal seams are attractive CO{sub 2} sequestration sinks, due to their abundance and proximity to electricity-generation facilities. The recovery of marketable coalbed methane (CBM) provides a value-added stream, potentially reducing the cost to sequester CO{sub 2} gas. Much research is needed to evaluate this technology in terms of CO{sub 2} storage capacity, sequestration stability, commercial feasibility and overall economics. CONSOL Energy Inc., Research & Development (CONSOL), with support from the US DOE, has embarked on a seven-year program to construct and operate a coal bed sequestration site composed of a series of horizontally drilled wells that originate at the surface and extend through two overlying coal seams. Once completed, all of the wells will be used initially to drain CBM from both the upper (mineable) and lower (unmineable) coal seams. After sufficient depletion of the reservoir, centrally located wells in the lower coal seam will be converted from CBM drainage wells to CO{sub 2} injection ports. CO{sub 2} will be measured and injected into the lower unmineable coal seam while CBM continues to drain from both seams. In addition to metering all injected CO{sub 2} and recovered CBM, the program includes additional monitoring wells to further examine horizontal and vertical migration of CO{sub 2}. This is the fifth Technical Progress report for the project. Progress this period was focused on reclamation of the north access road and north well site, and development of revised drilling methods. This report provides a concise overview of project activities this period and plans for future work.

William A. Williams

2004-03-01T23:59:59.000Z

171

Modelling and Experimental Study of Methane Catalytic Cracking as a Hydrogen Production Technology.  

E-Print Network (OSTI)

??Production of hydrogen is primarily achieved via catalytic steam reforming, partial oxidation,and auto-thermal reforming of natural gas. Although these processes are mature technologies, they are… (more)

Amin, Ashraf Mukhtar Lotfi

2011-01-01T23:59:59.000Z

172

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

E-Print Network (OSTI)

re- 35. John Paul, Anaerobic Digestion A Feel Good StrategyFACING VILOPMENT OF ANAEROBIC DIGESTION OF ANIMAl. WASTE INthan $40 million for anaerobic digestion systems." 19 The

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

173

Non-oxidative conversion of methane with continuous hydorgen removal  

SciTech Connect

The objective is to overcome the restrictions of non-oxidative methane pyrolysis and oxidative coupling of methane by transferring hydrogen across a selective inorganic membrane between methane and air streams, without simultaneous transport of hydrocarbon reactants or products. This will make the overall reaction system exothermic, remove the thermodynamic barrier to high conversion, and eliminate the formation of carbon oxides. Our approach is to couple C-H bond activation and hydrogen removal by passage of hydrogen atoms through a dense ceramic membrane. In our membrane reactor, catalytic methane pyrolysis produces C2+ hydrogen carbons and aromatics on the one side of the membrane and hydrogen is removed through an oxide film and combusted with air on the opposite side. This process leads to a net reaction with the stoichiometry and thermodynamic properties of oxidative coupling, but without contact between the carbon atoms and oxygen species.

Borry, R.W. III [California Univ., Berkeley, CA (United States). Dept. of Chemical Engineering; Iglesia, E. [California Univ., Berkeley, CA (United States). Lawrence Berkeley Lab.

1997-12-31T23:59:59.000Z

174

ENHANCED COAL BED METHANE PRODUCTION AND SEQUESTRATION OF CO2 IN UNMINEABLE COAL SEAMS  

Science Conference Proceedings (OSTI)

This is the sixth semi-annual Technical Progress report under the subject agreement. During this report period, progress was made on drilling the north, center, and south well sites. Water production commenced at the center and south well sites. New drilling plans were formulated for the last remaining well, which is in the Upper Freeport Seam at the north site. Core samples were submitted to laboratories for analytical testing. These aspects of the project are discussed in detail in this report.

William A. Williams

2004-10-01T23:59:59.000Z

175

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

176

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

177

TOYOTA PRODUCTION SYSTEMTOYOTA PRODUCTION SYSTEM ( TPS ) 1930( TPS ) 1930s  

E-Print Network (OSTI)

Why Leany #12;// ? ? ?? ?? #12;#12;TOYOTA PRODUCTION SYSTEMTOYOTA PRODUCTION SYSTEM. 80 : (Standard Work- CPG) 2 Toyota2. Toyota // waste value 3. (time, human effort

Laksanacharoen, Sathaporn

178

Table 16. Coalbed Methane Proved Reserves, Reserves ...  

U.S. Energy Information Administration (EIA)

aIncludes Illinois and Indiana. Note: The above table is based on coalbed methane proved reserves and production volumes as reported to the EIA on ...

179

NETL: Methane Hydrates - DOE/NETL Projects  

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

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...

180

Coal mine methane global review  

Science Conference Proceedings (OSTI)

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

Note: This page contains sample records for the topic "methane production system" 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

Fire in the Ice, August 2010 Methane Hydrate Newsletter  

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

Figure 1: Simulation results of coupled thermo-dynamic and geomechanical changes around a hot Figure 1: Simulation results of coupled thermo-dynamic and geomechanical changes around a hot production well intersecting an HBS near a sloping seafloor after 30 years of production and heating (Rutqvist and Moridis, 2010). CONTENTS Geohazards of In Situ Gas Hydrates ...........................................1 Behavior of Methane Released in the Deep Ocean.....5 Core-Scale Heterogeneity ............6 Gas Volume Ratios ........................9 The Role of Methane Hydrates in the Earth System ....................12 Announcements .......................15 * Inter-Laboratory Comparison Project * Mississippi Canyon 118 * Research Fellowship * Call for Papers * Call for Abstracts * Upcoming Meetings Spotlight on Research .......... 20 Graham Westbrook CONTACT

182

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 13, April--June, 1996  

DOE Green Energy (OSTI)

The specific objectives of this project are: to determine optimum conditions for methanol and formaldehyde production from methane using VPO catalysts, in particular to determine the effect of lean conditions (excess oxygen), oxygen deficient conditions (used in most other methane oxidation studies), and the potential of using the catalyst as a stoichiometric oxidant or oxygen carrier; to utilize promoters and catalyst supports to improve oxygenate yield relative to the base case catalysts; to provide a preliminary understanding of how these promoters and supports actually effect catalyst properties; and use the information obtained to prepare advanced catalysts which will be tested for activity, selectivity, and stability. Activities this quarter included analysis of all previously acquired data for methane, methanol, and formaldehyde oxidation over vanadyl pyrophosphate and testing of supported, promoted, and iron phosphate catalysts. Some experiments have been conducted with a small percentage of butane in the feed gas to help retain the catalyst in a reduced state and these results are reported. Iron phosphate, and iron phosphate supported on silica have also been tested in a preliminary way.

McCormick, R.L.; Alptekin, G.O.

1996-07-30T23:59:59.000Z

183

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

184

Thermal dissociation behavior and dissociation enthalpies of methane-carbon dioxide mixed hydrates  

E-Print Network (OSTI)

of Methane– Title: Carbon Dioxide Mixed Hydrates Tae-Hyukof methane with carbon dioxide in hydrate has been proposedsequestration of carbon dioxide ( CO 2 ) and/or production

Kwon, T.H.

2012-01-01T23:59:59.000Z

185

HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM  

Science Conference Proceedings (OSTI)

The objective of this project is to improve the productivity and lower the expense of existing vacuum blasting technology. This technology is used to remove radioactive contamination, PCBs, and lead-based paint and provides worker protection by continuously recycling the material and dust for the decontamination tasks. The proposed work would increase the cleaning rate and provide safe and cost-effective decontamination of the DOE sites. This work focuses on redesigning and improving existing vacuum blasting technology including blast head nozzles, ergonomic handling of the blast head by reducing its weight; brush-ring design, vacuum level regulator, efficiency of the dust separator, and operational control sensors. The redesign is expected to enhance the productivity and economy of the vacuum blasting system by at least 50% over current vacuum blasting systems. There are three phases in the project. Phase I consists of developing and testing mathematical models. Phase II consists of pre-prototype design and fabrication and pre-prototype unit testing. Phase III consists of prototype design and field verification testing. In phase I, mathematical models are developed and analyzed for the nozzle, blast head, wind curtain, and dust separator, first as individual devices and then combined as an integrated model. This allows study of respective airflow and design parameters. The Contractor shall, based on the results of the mathematical modeling studies, design experimental models of the components and test these models. In addition, the Contractor shall develop sensors to detect the relationship of the blast head to the blast surfaces and controls to minimize the dependency on an operator's skill and judgment to obtain optimum positioning, as well as real-time characterization sensors to determine as the blast head is moving the depth to which coatings must be removed, thereby improving production and minimizing waste. In phase II, the Contractor shall design and construct a pre-prototype of the nozzle, blast head with wind curtain, sensors, and dust separator and test this system to assess the performance of the new design under controlled conditions at the contractor's facility. In phase III, the Contractor shall design and construct a prototype of the High Productivity Vacuum Blasting System, based on the results of the pre-prototype design and testing performed. This unit will be a full-scale prototype and will be tested at a designated Department of Energy (DOE) facility. Based on the results, the system performance, the productivity, and the economy of the improved vacuum blasting system will be evaluated.

William S. McPhee

1999-05-31T23:59:59.000Z

186

Coalbed Methane  

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

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 part of the U.S. energy portfolio. A major reason for this is resource characterization and the establishment of efficient recovery methods pioneered by Office of Fossil Energy R&D.

187

NETL: Methane Hydrates - DOE/NETL Projects - Controls On Methane...  

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

On Methane Expulsion During Melting Of Natural Gas Hydrate Systems Last Reviewed 6242013 DE-FE0010406 Goal The project goal is to predict, given characteristic climate-induced...

188

Coalbed Methane Estimated Production  

Annual Energy Outlook 2012 (EIA)

2006 2007 2008 2009 2010 2011 View History U.S. 1,758 1,753 1,966 1,914 1,886 1,763 1989-2011 Federal Offshore U.S. 0 0 0 0 0 0 2005-2011 Pacific (California) 0 0 0 0 0 0 2005-2011...

189

Ultra-Deepwater Production Systems  

SciTech Connect

The report herein is a summary of the work performed on three projects to demonstrate hydrocarbon drilling and production methods applicable to deep and ultra deepwater field developments in the Gulf of Mexico and other like applications around the world. This work advances technology that could lead to more economic development and exploitation of reserves in ultra-deep water or remote areas. The first project is Subsea Processing. Its scope includes a review of the ''state of the art'' in subsea components to enable primary production process functions such as first stage liquids and gas separation, flow boosting, chemical treatment, flow metering, etc. These components are then combined to allow for the elimination of costly surface production facilities at the well site. A number of studies were then performed on proposed field development projects to validate the economic potential of this technology. The second project involved the design and testing of a light weight production riser made of composite material. The proposed design was to meet an actual Gulf of Mexico deepwater development project. The various engineering and testing work is reviewed, including test results. The third project described in this report encompasses the development and testing of a close tolerance liner drilling system, a new technology aimed at reducing deepwater drilling costs. The design and prototype testing in a test well are described in detail.

Ken L. Smith; Marc E. Leveque

2005-05-31T23:59:59.000Z

190

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 8, January--March, 1995  

DOE Green Energy (OSTI)

Activities during this quarter focused on fine tuning of catalyst characterization and synthesis techniques. Improvements in catalyst activity test methods were also implemented but more remains to be done. Specific accomplishments include: improved characterization of vanadyl pyrophosphate (VPO) and Si promoted VPO by FTIR and FTIR of chemisorbed bases; several minor improvements in catalyst preparation technique resulting in enhanced catalyst yield, better control of catalyst composition, and generation of less waste; preliminary pulsed reaction data on methane oxidation were also acquired. Preliminary activity measurements for methane conversion (without oxygen) in a pulsed reactor over VPO indicate that the primary reaction product is CO. Carbon dioxide is also formed but selectivity to CO{sub 2} decreases with number of pulses. These results suggest that selectivity to partially oxidized products improves with catalyst reduction and suggest that some surface modification will be required to obtain oxidized hydrocarbon products. Note that catalyst activation (conversion from the precursor to VPO) has been carried out using air. For butane oxidation catalysts VPO is activated in a 1% butane/air mixture which produces a slightly reduced catalyst.

McCormick, R.L.

1995-05-25T23:59:59.000Z

191

Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 5, November 16, 1987--January 15, 1988  

DOE Green Energy (OSTI)

The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that later can be converted to either liquid fuels or value-added chemicals, as economics dictate. During this reporting period, we have synthesized and tested several novel catalysts for methane reforming (Tasks 1 and 2) and for partial oxidation of methane (Tasks 3 and 4). We started to test a mixed metal system, an FeRu{sub 3} cluster. This catalyst was supported both on zeolite and on magnesium oxide and the systems were tested for methane reforming at various reaction temperatures. We also prepared and tested a monomeric ruthenium catalyst supported on magnesium oxide. We found that methane is activated at a lower temperature with the basic magnesium oxide support than with acidic supports such as zeolite or alumina. Methane conversions increased with temperature, but the production of coke also increased. We prepared a sterically hindered ruthenium porphyrin encapsulated in a zeolite supercage for catalysis of methane oxidation. The results showed that only carbon dioxide was produced. Addition of axial base to this catalyst gave similar results. Another type of catalyst, cobalt Schiff base complexes, was also prepared and tested for methane oxidation. In this case, no methane conversion was observed at temperatures ranging from 200 to 450{degrees}C. These complexes do not appear to be stable under the reaction conditions.

Wilson, R.B. Jr.; Chan Yee Wai

1988-02-05T23:59:59.000Z

192

Conversion of methane to higher hydrocarbons (Biomimetic catalysis of the conversion of methane to methanol). Final report  

DOE Green Energy (OSTI)

In addition to inorganic catalysts that react with methane, it is well-known that a select group of aerobic soil/water bacteria called methanotrophs can efficiently and selectively utilize methane as the sole source of their energy and carbon for cellular growth. The first reaction in this metabolic pathway is catalyzed by the enzyme methane monooxygenase (MMO) forming methanol. Methanol is a technology important product from this partial oxidation of methane since it can be easily converted to liquid hydrocarbon transportation fuels (gasoline), used directly as a liquid fuel or fuel additive itself, or serve as a feedstock for chemicals production. This naturally occurring biocatalyst (MMO) is accomplishing a technologically important transformation (methane directly to methanol) for which there is currently no analogous chemical (non-biological) process. The authors approach has been to use the biocatalyst, MMO, as the initial focus in the development of discrete chemical catalysts (biomimetic complexes) for methane conversion. The advantage of this approach is that it exploits a biocatalytic system already performing a desired transformation of methane. In addition, this approach generated needed new experimental information on catalyst structure and function in order to develop new catalysts rationally and systematically. The first task is a comparative mechanistic, biochemical, and spectroscopic investigation of MMO enzyme systems. This work was directed at developing a description of the structure and function of the catalytically active sites in sufficient detail to generate a biomimetic material. The second task involves the synthesis, characterization, and chemical reactions of discrete complexes that mimic the enzymatic active site. These complexes were synthesized based on their best current understanding of the MMO active site structure.

Watkins, B.E.; Taylor, R.T.; Satcher, J.H. [and others

1993-09-01T23:59:59.000Z

193

Ultra-Deepwater Production Systems  

Science Conference Proceedings (OSTI)

This report includes technical progress made during the period October, 2003 through September, 2004. At the end of the last technical progress report, the subsea processing aspects of the work program had been dropped due to the lack of commercial opportunity within ConocoPhillips, and the program had been redirected towards two other promising deepwater technologies: the development and demonstration of a composite production riser, and the development and testing of a close-tolerance liner drilling system. This report focuses on these two technologies.

K. L. Smith; M. E. Leveque

2004-09-30T23:59:59.000Z

194

Direct production of hydrogen and aromatics from methane or natural gas: Review of recent U.S. patents  

DOE Green Energy (OSTI)

Since the year 2000, the United States Patent and Trademark Office (USPTO) has granted a dozen patents for inventions related to methane dehydroaromatization processes. One of them was granted to UOP LLC (Des Plaines). It relates to a catalyst composition and preparation method. Two patents were granted to Conoco Phillips Company (Houston, TX). One was aimed at securing a process and operating conditions for methane aromatization. The other was aimed at securing a process that may be integrated with separation of wellhead fluids and blending of the aromatics produced from the gas with the crude. Nine patents were granted to ExxonMobil Chemical Patents Inc. (Houston, TX). Most of these were aimed at securing a dehydroaromatization process where methane-containing feedstock moves counter currently to a particulate catalyst. The coked catalyst is heated or regenerated either in the reactor, by cyclic operation, or in annex equipment, and returned to the reactor. The reactor effluent stream may be separated in its main components and used or recycled as needed. A brief summary of those inventions is presented in this review.

Lucia M. Petkovic; Daniel M. Ginosar

2012-03-01T23:59:59.000Z

195

Methane conversion to methanol  

DOE Green Energy (OSTI)

The objective of this research study is to demonstrate the effectiveness of a catalytic membrane reactor for the partial oxidation of methane. The specific goals are to demonstrate that we can improve product yield, demonstrate the optimal conditions for membrane reactor operation, determine the transport properties of the membrane, and provide demonstration of the process at the pilot plant scale. The last goal will be performed by Unocal, Inc., our industrial partner, upon successful completion of this study.

Noble, R.D.; Falconer, J.L.

1992-06-01T23:59:59.000Z

196

Biogreen Energy Systems Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

Systems Pvt Ltd Place Pune, Maharashtra, India Zip 411 038 Product Biogreen makes steam turbines, biogas engines, and converts kitchen waste into methane rich biogas....

197

NETL: Methane Hydrates - DOE/NETL Projects  

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

goal was to develop new methodologies to characterize the physical properties of methane hydrate and hydrate sediment systems. Performers Westport Technology Center...

198

Assessment of the methane oxidation capacity of compacted soils intended for use as landfill cover materials  

SciTech Connect

The microbial oxidation of methane in engineered cover soils is considered a potent option for the mitigation of emissions from old landfills or sites containing wastes of low methane generation rates. A laboratory column study was conducted in order to derive design criteria that enable construction of an effective methane oxidising cover from the range of soils that are available to the landfill operator. Therefore, the methane oxidation capacity of different soils was assessed under simulated landfill conditions. Five sandy potential landfill top cover materials with varying contents of silt and clay were investigated with respect to methane oxidation and corresponding soil gas composition over a period of four months. The soils were compacted to 95% of their specific proctor density, resulting in bulk densities of 1.4-1.7 g cm{sup -3}, reflecting considerably unfavourable conditions for methane oxidation due to reduced air-filled porosity. The soil water content was adjusted to field capacity, resulting in water contents ranging from 16.2 to 48.5 vol.%. The investigated inlet fluxes ranged from 25 to about 100 g CH{sub 4} m{sup -2} d{sup -1}, covering the methane load proposed to allow for complete oxidation in landfill covers under Western European climate conditions and hence being suggested as a criterion for release from aftercare. The vertical distribution of gas concentrations, methane flux balances as well as stable carbon isotope studies allowed for clear process identifications. Higher inlet fluxes led to a reduction of the aerated zone, an increase in the absolute methane oxidation rate and a decline of the relative proportion of oxidized methane. For each material, a specific maximum oxidation rate was determined, which varied between 20 and 95 g CH{sub 4} m{sup -2} d{sup -1} and which was positively correlated to the air-filled porosity of the soil. Methane oxidation efficiencies and gas profile data imply a strong link between oxidation capacity and diffusive ingress of atmospheric air. For one material with elevated levels of fine particles and high organic matter content, methane production impeded the quantification of methane oxidation potentials. Regarding the design of landfill cover layers it was concluded that the magnitude of the expected methane load, the texture and expected compaction of the cover material are key variables that need to be known. Based on these, a column study can serve as an appropriate testing system to determine the methane oxidation capacity of a soil intended as landfill cover material.

Rachor, Ingke, E-mail: i.rachor@ifb.uni-hamburg.de [University of Hamburg, Institute of Soil Science, Allende-Platz 2, 20146 Hamburg (Germany); Gebert, Julia; Groengroeft, Alexander; Pfeiffer, Eva-Maria [University of Hamburg, Institute of Soil Science, Allende-Platz 2, 20146 Hamburg (Germany)

2011-05-15T23:59:59.000Z

199

Biological conversion of biomass to methane. Quarterly progress report  

DOE Green Energy (OSTI)

Progress in comparative studies of complete-mix and multi-stage reactors for use in the anaerobic fermentation of organic solids for methane production is reported. Results indicate that if a balanced population of organisms can be maintained in the initial stage, multi-stage fermentation is more efficient than a complete-mix system. However, if the system is stressed, failure of the multi-staged system is more rapid. When the first stage is not inhibited due to a short retention time, the waste stabilization in the additional stages is minimal. Further studies on the effect of retention time on reaction rates indicate that the type of reactor design desired will depend upon the objective of the system. If it is desired to maximize the conversion of solids to methane, a staged system will produce more methane per unit volume of reactor for a given quantity of substrate. If the objective is to maximize methane production per unit volume of reactor, a single-stage reactor operating at near the minimum retention is required. Results of studies on the fermentation of manures and corn stover are discussed briefly. (JGB)

Pfeffer, J T

1978-01-01T23:59:59.000Z

200

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 35.2225°, -80.837539° 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":""}]}

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201

Methane (CH4)  

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

Methane (CH4) Gateway Pages to Methane Data Modern Records of Atmospheric Methane (CH4) and a 2000-year Ice-core Record from Law Dome, Antarctica 800,000-year Ice-Core Records of...

202

Design of product development systems  

E-Print Network (OSTI)

The development of successful new products in less time and using fewer resources is key to the financial success of most consumer product companies. In this thesis we have studied the development of new products and how ...

Aguirre Granados, Adrian

2008-01-01T23:59:59.000Z

203

State-of-the-art in coalbed methane drilling fluids  

SciTech Connect

The production of methane from wet coalbeds is often associated with the production of significant amounts of water. While producing water is necessary to desorb the methane from the coal, the damage from the drilling fluids used is difficult to assess, because the gas production follows weeks to months after the well is drilled. Commonly asked questions include the following: What are the important parameters for drilling an organic reservoir rock that is both the source and the trap for the methane? Has the drilling fluid affected the gas production? Are the cleats plugged? Does the 'filtercake' have an impact on the flow of water and gas? Are stimulation techniques compatible with the drilling fluids used? This paper describes the development of a unique drilling fluid to drill coalbed methane wells with a special emphasis on horizontal applications. The fluid design incorporates products to match the delicate surface chemistry on the coal, a matting system to provide both borehole stability and minimize fluid losses to the cleats, and a breaker method of removing the matting system once drilling is completed. This paper also discusses how coal geology impacts drilling planning, drilling practices, the choice of drilling fluid, and completion/stimulation techniques for Upper Cretaceous Mannville-type coals drilled within the Western Canadian Sedimentary Basin. A focus on horizontal coalbed methane (CBM) wells is presented. Field results from three horizontal wells are discussed, two of which were drilled with the new drilling fluid system. The wells demonstrated exceptional stability in coal for lengths to 1000 m, controlled drilling rates and ease of running slotted liners. Methods for, and results of, placing the breaker in the horizontal wells are covered in depth.

Baltoiu, L.V.; Warren, B.K.; Natras, T.A.

2008-09-15T23:59:59.000Z

204

Four Critical Needs to Change the Hydrate Energy Paradigm from Assessment to Production: The 2007 Report to Congress by the U.S. Federal methane Hydrate Advisory Committee  

Science Conference Proceedings (OSTI)

This work summarizes a two-year study by the U.S. Federal Methane Hydrate Advisory Committee recommending the future needs for federally-supported hydrate research. The Report was submitted to the US Congress on August 14, 2007 and includes four recommendations regarding (a) permafrost hydrate production testing, (b) marine hydrate viability assessment (c) climate effect of hydrates, and (d) international cooperation. A secure supply of natural gas is a vital goal of the U.S. national energy policy because natural gas is the cleanest and most widely used of all fossil fuels. The inherent cleanliness of natural gas, with the lowest CO2 emission per unit of heat energy of any fossil fuel, means substituting gas for coal and fuel oil will reduce emissions that can exacerbate the greenhouse effect. Both a fuel and a feedstock, a secure and reasonably priced supply of natural gas is important to industry, electric power generators, large and small commercial enterprises, and homeowners. Because each volume of solid gas hydrate contains as much as 164 standard volumes of methane, hydrates can be viewed as a concentrated form of natural gas equivalent to compressed gas but less concentrated than liquefied natural gas (LNG). Natural hydrate accumulations worldwide are estimated to contain 700,000 TCF of natural gas, of which 200,000 TCF are located within the United States. Compared with the current national annual consumption of 22 TCF, this estimate of in-place gas in enormous. Clearly, if only a fraction of the hydrated methane is recoverable, hydrates could constitute a substantial component of the future energy portfolio of the Nation (Figure 1). However, recovery poses a major technical and commercial challenge. Such numbers have sparked interest in natural gas hydrates as a potential, long-term source of energy, as well as concerns about any potential impact the release of methane from hydrates might have on the environment. Energy-hungry countries such as India and Japan are outspending the United States on hydrate science and engineering R&D by a factor of 10, and may bring this resource to market as much as a decade before the United States.

Mahajan,D.; Sloan, D.; Brewer, P.; Dutta, N.; Johnson, A.; Jones, E.; Juenger, K.; Kastner, M.; Masutani, S.; Swenson, R.; Whelan, J.; Wilson, s.; Woolsey, R.

2009-03-11T23:59:59.000Z

205

Methane, ammonia, and their irradiation products at the surface of an intermediate-size KBO? A portrait of Plutino (90482) Orcus  

E-Print Network (OSTI)

Orcus is an intermediate-size 1000km-scale Kuiper Belt Object in 3:2 mean-motion resonance with Neptune, in an orbit very similar to that of Pluto. We present visible and near-infrared photometry and spectroscopy obtained with the Keck 10m-telescope and the Gemini 8m-telescope . We confirm the unambiguous detection of crystalline water ice as well as absorption in the 2.2\\mu m region. Both in the visible and near-infrared Orcus' spectral properties appear to be homogeneous over time (and probably rotation) at the resolution available. From Hapke radiative transfer models involving intimate mixtures of various ices we find for the first time that ammonium (NH+4) and traces of ethane (C2 H6), which are most probably solar irradiation products of ammonia and methane, and a mixture of methane and ammonia (diluted or not) are the best candidates to improve the description of the data with respect to a simple water ice mixture (Haumea type surface). The possible more subtle structure of the 2.2\\mu m band(s) should ...

Delsanti, Audrey; Guilbert, Aurélie; Bauer, James; Yang, Bin; Meech, Karen J

2010-01-01T23:59:59.000Z

206

Feasibility analysis of ternary feed mixtures of methane with oxygen, steam, and carbon dioxide for the production of methanol synthesis gas  

SciTech Connect

The feasibility of ternary feed mixtures of CH{sub 4} with O{sub 2}, H{sub 2}O, and CO{sub 2} is analyzed in relation to the production of methanol syngas. Stoichiometric constraints are formulated in terms of three parameters characterizing the steam, partial oxidation, and carbon dioxide reforming reactions of methane. The equilibrium analysis is conducted using the methanol balance ratio {mu} and methane slip fraction {chi} as explicit design parameters. General results are derived for the feasibility of each ternary feed combination as a function of pressure and temperature in the range 1 < {mu} < 3 under carbon-free conditions. Numerical calculations indicate that CH{sub 4}/O{sub 2}/CO{sub 2} feeds can be used in single-stage adiabatic reformers at low values of {mu}, but the produced syngas requires further treatment. Reforming based on CH{sub 4}/O{sub 2}/H{sub 2}O feeds is endothermic at {mu} {ge} 2 under typical reaction conditions, thus requiring the application of a two-stage process involving primary and secondary reformers. Utilization of CH{sub 4}/O{sub 2}/H{sub 2}O feeds in single-stage adiabatic reactors is feasible for {mu} = 1.7--1.9, yielding syngas which can be upgraded by partial CO{sub 2} removal. The endothermic CH{sub 4}/CO{sub 2}/H{sub 2}O feed combination is always feasible for 1 < {mu} < 3.

Tjatjopoulos, G.J. [Chemical Process Engineering Research Inst., Thessaloniki (Greece). Foundation for Research and Technology; Vasalos, I.A. [Aristotle Univ. of Thessaloniki (Greece). Chemical Engineering Dept.

1998-04-01T23:59:59.000Z

207

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

208

Software and Systems Division Products  

Science Conference Proceedings (OSTI)

... Other Products. DADS - Dictionary of Algorithms; ADLF parser (ADL activity diagrams to text form); SCRIBA; Metadata Conformance Analyzer.

2011-10-06T23:59:59.000Z

209

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

210

Monitoring system-of-systems requirements in multi product lines  

Science Conference Proceedings (OSTI)

[Context and motivation] Large-scale software-intensive systems are often considered as systems of systems comprising several interrelated product lines from which system variants are derived to meet the overall requirements. [Question/problem] ...

Thomas Klambauer, Gerald Holl, Paul Grünbacher

2013-04-01T23:59:59.000Z

211

Hydraulic fracturing and wellbore completion of coalbed methane wells in the Powder River Basin, Wyoming: Implications for water and gas production  

SciTech Connect

Excessive water production (more than 7000 bbl/month per well) from many coalbed methane (CBM) wells in the Powder River Basin of Wyoming is also associated with significant delays in the time it takes for gas production to begin. Analysis of about 550 water-enhancement activities carried out during well completion demonstrates that such activities result in hydraulic fracturing of the coal. Water-enhancement activities, consists of pumping 60 bbl of water/min into the coal seam during approximately 15 min. This is done to clean the well-bore and to enhance CBM production. Hydraulic fracturing is of concern because vertical hydraulic fracture growth could extend into adjacent formations and potentially result in excess CBM water production and inefficient depressurization of coals. Analysis of the pressure-time records of the water-enhancement tests enabled us to determine the magnitude of the least principal stress (S{sub 3}) in the coal seams of 372 wells. These data reveal that because S{sub 3} switches between the minimum horizontal stress and the overburden at different locations, both vertical and horizontal hydraulic fracture growth is inferred to occur in the basin, depending on the exact location and coal layer. Relatively low water production is observed for wells with inferred horizontal fractures, whereas all of the wells associated with excessive water production are characterized by inferred vertical hydraulic fractures. The reason wells with exceptionally high water production show delays in gas production appears to be inefficient depressurization of the coal caused by water production from the formations outside the coal. To minimize CBM water production, we recommend that in areas of known vertical fracture propagation, the injection rate during the water-enhancement tests should be reduced to prevent the propagation of induced fractures into adjacent water-bearing formations.

Colmenares, L.B.; Zoback, M.D. [Stanford University, Stanford, CA (United States). Dept. of Geophysics

2007-01-15T23:59:59.000Z

212

Renewable Energy 32 (2007) 12431257 Methane generation in landfills  

E-Print Network (OSTI)

2006 Abstract Methane gas is a by-product of landfilling municipal solid wastes (MSW). Most tonnes of methane annually, 70% of which is used to generate heat and/or electricity. The landfill gas. All rights reserved. Keywords: Landfill gas; Renewable energy; Municipal solid waste; Biogas; Methane

Columbia University

213

NIST: Methane Symmetry Operations  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Version History Methane Symmetry Operations. JT Hougen Optical Technology Division Gloria Wiersma ...

2010-10-05T23:59:59.000Z

214

A HYBRID ADSORBENT-MEMBRANE REACTOR (HAMR) SYSTEM FOR HYDROGEN PRODUCTION  

E-Print Network (OSTI)

methane-steam reformers, and for meeting the product purity requirements for PEM operation. Here we reforming of methane (SRM) reaction has been developed and analyzed for a range of temperature and pressure gas shift (WGS) and steam reforming reactions. The reactor characteristics have been investigated

Southern California, University of

215

Low-Cost Hydrogen Distributed Production System Development  

DOE Green Energy (OSTI)

H{sub 2}Gen, with the support of the Department of Energy, successfully designed, built and field-tested two steam methane reformers with 578 kg/day capacity, which has now become a standard commercial product serving customers in the specialty metals and PV manufacturing businesses. We demonstrated that this reformer/PSA system, when combined with compression, storage and dispensing (CSD) equipment could produce hydrogen that is already cost-competitive with gasoline per mile driven in a conventional (non-hybrid) vehicle. We further showed that mass producing this 578 kg/day system in quantities of just 100 units would reduce hydrogen cost per mile approximately 13% below the cost of untaxed gasoline per mile used in a hybrid electric vehicle. If mass produced in quantities of 500 units, hydrogen cost per mile in a FCEV would be 20% below the cost of untaxed gasoline in an HEV in the 2015-2020 time period using EIA fuel cost projections for natural gas and untaxed gasoline, and 45% below the cost of untaxed gasoline in a conventional car. This 20% to 45% reduction in fuel cost per mile would accrue even though hydrogen from this 578 kg/day system would cost approximately $4.14/kg, well above the DOE hydrogen cost targets of $2.50/kg by 2010 and $2.00/kg by 2015. We also estimated the cost of a larger, 1,500 kg/day SMR/PSA fueling system based on engineering cost scaling factors derived from the two H{sub 2}Gen products, a commercial 115 kg/day system and the 578 kg/day system developed under this DOE contract. This proposed system could support 200 to 250 cars per day, similar to a medium gasoline station. We estimate that the cost per mile from this larger 1,500 kg/day hydrogen fueling system would be 26% to 40% below the cost per mile of untaxed gasoline in an HEV and ICV respectively, even without any mass production cost reductions. In quantities of 500 units, we are projecting per mile cost reductions between 45% (vs. HEVs) and 62% (vs ICVs), with hydrogen costing approximately $2.87/kg, still above the DOE's 2010 $2.50/kg target. We also began laboratory testing of reforming ethanol, which we showed is currently the least expensive approach to making renewable hydrogen. Extended testing of neat ethanol in micro-reactors was successful, and we also were able to reform E-85 acquired from a local fueling station for 2,700 hours, although some modifications were required to handle the 15% gasoline present in E-85. We began initial tests of a catalyst-coated wall reformer tube that showed some promise in reducing the propensity to coke with E-85. These coated-wall tests ran for 350 hours. Additional resources would be required to commercialize an ethanol reformer operating on E-85, but there is no market for such a product at this time, so this ethanol reformer project was moth-balled pending future government or industry support. The two main objectives of this project were: (1) to design, build and test a steam methane reformer and pressure swing adsorption system that, if scaled up and mass produced, could potentially meet the DOE 2015 cost and efficiency targets for on-site distributed hydrogen generation, and (2) to demonstrate the efficacy of a low-cost renewable hydrogen generation system based on reforming ethanol to hydrogen at the fueling station.

C.E. (Sandy) Thomas, Ph.D., President; Principal Investigator, and

2011-03-10T23:59:59.000Z

216

Design and economics of a lignite-to-SNG (substitute natural gas) facility using Lurgi gasifiers with in-line conversion of by-product liquids to methane. Topical report (Final), December 1985-November 1986  

SciTech Connect

A first-pass conceptual design and screening cost estimate was prepared for a hypothetical plant to convert lignite to methane using Lurgi dry-bottom gasifiers and employing a black box reactor to convert by-product liquids in the gas phase to methane. Results were compared to those from conventional and modified Lurgi-plant designs. The in-line conversion plant can potentially reduce the cost of gas from a Lurgi plant by about 20%. Due to reduced capital investment, over $200 million could be invested in the reactor before the cost of gas from the in-line conversion plant is as high as that of a Lurgi plant.

Smelser, S.C.

1986-11-01T23:59:59.000Z

217

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

218

Fluxes of methane between landfills and the atmosphere: Natural and engineered controls  

SciTech Connect

Field measurement of landfill methane emissions indicates natural variability spanning more than 2 seven orders of magnitude, from approximately 0.0004 to more than 4000 g m{sub -2} day{sup -1}. This wide range reflects net emissions resulting from production (methanogenesis), consumption (methanotrophic oxidation), and gaseous transport processes. The determination of an {open_quotes}average{close_quotes} emission rate for a given field site requires sampling designs and statistical techniques which consider spatial and temporal variability. Moreover, particularly at sites with pumped gas recovery systems, it is possible for methanotrophic microorganisms in aerated cover soils to oxidize all of the methane from landfill sources below and, additionally, to oxidize methane diffusing into cover soils from atmospheric sources above. In such cases, a reversed soil gas concentration gradient is observed in shallow cover soils, indicating bidirectional diffusional transport to the depth of optimum methane oxidation. Rates of landfill methane oxidation from field and laboratory incubation studies range up to 166 g m{sup -2} day{sup -1} among the highest for any natural setting, providing an effective natural control on net emissions. Estimates of worldwide landfill methane emissions to the atmosphere have ranged from 9 to 70 Tg yr{sup -1}, differing mainly in assumed methane yields from estimated quantities of landfilled refuse. At highly controlled landfill sites in developed countries, landfill methane is often collected via vertical wells or horizontal collectors. Recovery of landfill methane through engineered systems can provide both environmental and energy benefits by mitigating subsurface migration, reducing surface emissions, and providing an alternative energy resource for industrial boiler use, on-site electrical generation, or upgrading to a substitute natural gas.

Bogner, J. [Argonne National Lab., IL (United States); Meadows, M. [ETSU, Harwell, Oxfordshire (United Kingdom); Czepiel, P. [Harvard Univ., Cambridge, MA (United States)

1997-08-01T23:59:59.000Z

219

Air Products Hydrogen Energy Systems | Department of Energy  

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

Air Products Hydrogen Energy Systems Air Products Hydrogen Energy Systems Hydrogen Infrastructure Air Products Hydrogen Energy Systems More Documents & Publications Quadrennial...

220

THE REACTIONS OF ENERGETIC CARBON ATOMS IN METHANE OXYGEN AND PHASE DEPENDENCE RADIATION DAMAGE EFFECTS  

DOE Green Energy (OSTI)

Studies were made on the reactions of C/sup 11/ in methane containing oxygen. The nuclear reactions C/sup 12/(n,2n) and C/sup 12/(p,pn) were used to produce C/sup 11/. Concomitant radiolysis of the methane during C/sup 11/ production clearly affected product distribution. C/sup 11/-labeled ethane and propane decreased while methane, ethylene, and acetylene decreased. It was assumed that reduction by hydrogen atoms was probably occurring in the unscavenged system. The effects of oxygen and of phase are discussed. In all cases, in duplicate systems, the product distributions resulting from inducing the C/sup 12/(p,pn) reaction were the same within experimental error as those resulting from the C/sup 12/(n,2n) reaction. (P.C.H.)

Stoecklin, G.; Stangl, H.; Christman, D.R.; Cumming, J.B.; Wolf, A.P.

1963-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

High-pressure/high-temperature gas-solubility study in hydrogen-phenanthrene and methane-phenanthrene systems using static and chromatographic techniques  

SciTech Connect

The design and discovery of sources for alternative energy such as coal liquefaction has become of major importance over the past two decades. One of the major problems in such design in the lack of available data, particularly, for gas solubility in polycyclic aromatics at high temperature and pressure. Static and gas-liquid partition chromatographic methods were used for the study of hydrogen-phenanthrene and methane-phenanthrene systems. The static data for these two binaries were taken along 398.2, 423.2, 448.2, and 473.2 K isotherms up to 25.23 MPa. Gas-liquid partition chromatography was used to study the infinite dilution behavior of methane, ethane, propane, n-butane, and carbon dioxide in the hydrogen-phenanthrene system as well as hydrogen, ethane, n-butane, and carbon dioxide in the methane-phenanthrene binary. The principle objective was to examine the role of the elution gas. Temperatures were along the same isotherms as the static data and up to 20.77 MPa. With the exception of carbon dioxide, Henry's constants were calculated for all systems. Expressions for the heat of solution as a function of pressure were derived for both binary and chromatographic data. Estimates of delta H/sub i/sup sol/ at high pressure were presented.

Malone, P.V.

1987-01-01T23:59:59.000Z

222

GRI methane chemistry program review meeting  

SciTech Connect

Methane is an important greenhouse gas which affects the atmosphere directly by the absorption and re-emission of infrared radiation as well as indirectly, through chemical interactions. Emissions of several important greenhouse gases (GHGS) including methane are increasing, mainly due to human activity. Higher concentrations of these gases in the atmosphere are projected to cause a decrease in the amount of infrared radiation escaping to space, and a subsequent warming of global climate. It is therefore vital to understand not only the causes of increased production of methane and other GHGS, but the effect of higher GHG concentrations on climate, and the possibilities for reductions of these emissions. In GRI-UIUC methane project, the role of methane in climate change and greenhouse gas abatement strategies is being studied using several distinct approaches. First, a detailed treatment of the mechanisms controlling each important methane source and sink, and hence the atmospheric concentration of methane, is being developed for use with the UIUC Integrated Science Assessment Model. The focus of this study is to resolve the factors which determine methane emissions and removal, including human population, land use, energy demand, global temperature, and regional concentrations of the hydroxyl radical, carbon monoxide, nitrous oxides, non-methane hydrocarbons, water vapor, tropospheric and stratospheric ozone.

Dignon, J.; Grant, K.; Grossman, A.; Wuebles, D.; Brasseur, G.; Madronich, S.; Huang, T.; Chang, J.; Lott, B.

1997-02-01T23:59:59.000Z

223

Design of highly distributed biofuel production systems .  

E-Print Network (OSTI)

??This thesis develops quantitative methods for evaluation and design of large-scale biofuel production systems with a particular focus on bioreactor-based fuel systems. In Chapter 2,… (more)

Luo, Dexin

2011-01-01T23:59:59.000Z

224

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)

225

Associative computer: a hybrid connectionistic production system  

Science Conference Proceedings (OSTI)

In this paper, we introduce a connectionistic hybrid production system, which relies on the distributed representation and the usage of associative memories. Benefits of the distributed representation include heuristics resulting from pictogram representation. ... Keywords: Connectionism, Distributed representation, Learning, Problem solving, Production system

Andreas Wichert

2005-06-01T23:59:59.000Z

226

Ethanol production method and system  

DOE Patents (OSTI)

Ethanol is selectively produced from the reaction of methanol with carbon monoxide and hydrogen in the presence of a transition metal carbonyl catalyst. Methanol serves as a solvent and may be accompanied by a less volatile co-solvent. The solution includes the transition metal carbonyl catalysts and a basic metal salt such as an alkali metal or alkaline earth metal formate, carbonate or bicarbonate. A gas containing a high carbon monoxide to hydrogen ratio, as is present in a typical gasifer product, is contacted with the solution for the preferential production of ethanol with minimal water as a byproduct. Fractionation of the reaction solution provides substantially pure ethanol product and allows return of the catalysts for reuse.

Chen, M.J.; Rathke, J.W.

1983-05-26T23:59:59.000Z

227

Methanol production method and system  

DOE Patents (OSTI)

Ethanol is selectively produced from the reaction of methanol with carbon monoxide and hydrogen in the presence of a transition metal carbonyl catalyst. Methanol serves as a solvent and may be accompanied by a less volatile co-solvent. The solution includes the transition metal carbonyl catalysts and a basic metal salt such as an alkali metal or alkaline earth metal formate, carbonate or bicarbonate. A gas containing a high carbon monoxide to hydrogen ratio, as is present in a typical gasifer product, is contacted with the solution for the preferential production of ethanol with minimal water as a byproduct. Fractionation of the reaction solution provides substantially pure ethanol product and allows return of the catalysts for reuse.

Chen, Michael J. (Darien, IL); Rathke, Jerome W. (Bolingbrook, IL)

1984-01-01T23:59:59.000Z

228

Methane recovery from animal manures: A current opportunities casebook  

DOE Green Energy (OSTI)

One manure management system provides not only pollution prevention but also converts a manure management problem into a new profit center. Economic evaluations and case studies of operating systems indicate that the anaerobic digestion of livestock manures is a commercially-available bioconversion technology with considerable potential for providing profitable co-products including a cost-effective renewable fuel for livestock production operations. This Casebook examines some of the current opportunities for the recovery of methane from the anaerobic digestion of animal manures. The economic evaluations are based on engineering studies of digesters that generate electricity from the recovered methane. Regression models, which can be used to estimate digester cost and internal rate of return, are developed from the evaluations. Finally, anaerobic digestion has considerable potential beyond agribusiness. Examples of digesters currently employed by other industries are provided.

Lusk, P. [Resource Development Associates, Marietta, GA (United States)

1994-12-01T23:59:59.000Z

229

HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM  

SciTech Connect

The purpose of the project is to increase the productivity and economics of existing vacuum blasting technology. This technology is used to remove radioactive contamination, PCB's and lead-base paint and provides worker and environmental protection by continuously recycling the blast media and the full containment of the dust generated in the process.

Dr. M.A. Ebadian

2000-01-13T23:59:59.000Z

230

NETL: Methane Hydrates - DOE/NETL Projects  

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

Production of Methane Hydrate Last Reviewed 5152012 DE-FC26-06NT42960 Goal The goal of this project is to improve the understanding of regional and local differences in gas...

231

HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM  

Science Conference Proceedings (OSTI)

The Department of Energy (DOE) needs improved technologies to decontaminate large areas of both concrete and steel surfaces. The technology should have high operational efficiency, minimize exposures to workers, and produce low levels of secondary waste. In order to meet the DOE's needs, an applied research and development project for the improvement of a current decontamination technology, Vacuum Blasting, is proposed. The objective of this project is to improve the productivity and lower the expense of the existing vacuum blasting technology which has been widely used in DOE sites for removing radioactive contamination, PCBs, and lead-based paint. The proposed work would increase the productivity rate and provide safe and cost-effective decontamination of the DOE sites.

William S. McPhee

2001-08-31T23:59:59.000Z

232

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

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

,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Utah Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2011,"6...

233

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

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

ame","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2011,"6301989"...

234

NETL: Methane Hydrates - DOE/NETL Projects - Verification Of...  

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

will help to determine bottomhole pressure, predict more accurate production rates of methane and water, and facilitate the selection of hydrate reservoirs for economic...

235

Resource Recovery of Coal Bed Methane Formation Water.  

E-Print Network (OSTI)

??During the excavation of natural gas, petroleum hydrocarbon-polluted brine water, termed production water, is drawn from the coal bed methane formations (CBMF) along with the… (more)

Bishop, Catherine Elizabeth

2006-01-01T23:59:59.000Z

236

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

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

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

237

System for thermochemical hydrogen production  

DOE Patents (OSTI)

Method and apparatus are described for joule boosting a SO/sub 3/ decomposer using electrical instead of thermal energy to heat the reactants of the high temperature SO/sub 3/ decomposition step of a thermochemical hydrogen production process driven by a tandem mirror reactor. Joule boosting the decomposer to a sufficiently high temperature from a lower temperature heat source eliminates the need for expensive catalysts and reduces the temperature and consequent materials requirements for the reactor blanket. A particular decomposer design utilizes electrically heated silicon carbide rods, at a temperature of 1250/sup 0/K, to decompose a cross flow of SO/sub 3/ gas.

Werner, R.W.; Galloway, T.R.; Krikorian, O.H.

1981-05-22T23:59:59.000Z

238

Air Products Hydrogen Energy Systems  

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

Kiczek,Edward F. [KICZEKEF@airproducts.com] Kiczek,Edward F. [KICZEKEF@airproducts.com] Sent: Monday, April 18, 2011 7:40 PM To: Gopstein, Avi (S4) Subject: Hydrogen Infrastructure Latest Advancements Attachments: Air Products Written Comments to 2011 2012 AB118 Investment Plan.pdf Follow Up Flag: Follow up Flag Status: Flagged Categories: QTR Transparency Avi, You may recall we met in DC when the McKinsey team from Germany came to discuss the EU study on hydrogen infrastructure. At that time I mention a significant advance in infrastructure that would be announced soon. Attached is our testimony to the California Energy Commission on deploying that technology. We were awarded the project to build 9 stations in southern California with the backing of

239

Heat pipe methanator  

DOE Patents (OSTI)

A heat pipe methanator for converting coal gas to methane. Gravity return heat pipes are employed to remove the heat of reaction from the methanation promoting catalyst, transmitting a portion of this heat to an incoming gas pre-heat section and delivering the remainder to a steam generating heat exchanger.

Ranken, William A. (Los Alamos, NM); Kemme, Joseph E. (Los Alamos, NM)

1976-07-27T23:59:59.000Z

240

Direct conversion of methane to C sub 2 's and liquid fuels  

DOE Green Energy (OSTI)

Objectives of the project are to discover and evaluate novel catalytic systems for the conversion of methane or by-product light hydrocarbon gases either indirectly (through intermediate light gases rich in C{sub 2}'s) or directly to liquid hydrocarbon fuels, and to evaluate, from an engineering perspective, different conceptualized schemes. The approach is to carry out catalyst testing on several specific classes of potential catalysts for the conversion of methane selectively to C{sub 2} products. Promoted metal oxide catalysts were tested. Several of these exhibited similar high ethylene to ethane ratios and low carbon dioxide to carbon monoxide ratios observed for the NaCl/{alpha}-alumina catalyst system reported earlier. Research on catalysts containing potentially activated metals began with testing of metal molecular sieves. Silver catalysts were shown to be promising as low temperature catalysts. Perovskites were tested as potential methane coupling catalysts. A layered perovskite (K{sub 2}La{sub 2}Ti{sub 3}O{sub 10}) gave the highest C{sub 2} yield. Work continued on the economic evaluation of a hypothetical process converting methane to ethylene. An engineering model of the methane coupling system has been prepared. 47 refs., 17 figs., 57 tabs.

Warren, B.K.; Campbell, K.D.

1989-11-22T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

The NOAA Products Validation System (NPROVS)  

Science Conference Proceedings (OSTI)

The following report summarizes the NOAA Products Validation System (NPROVS), operated at the NOAA National Environmental Satellite, Data, and Information Service (NESDIS) Center for Satellite Applications and Research (STAR). NPROVS provides ...

Tony Reale; Bomin Sun; Franklin H. Tilley; Michael Pettey

2012-05-01T23:59:59.000Z

242

Study of Methane Reforming in Warm Non-Equilibrium Plasma Discharges  

E-Print Network (OSTI)

Utilization of natural gas in remote locations necessitates on-site conversion of methane into liquid fuels or high value products. The first step in forming high value products is the production of ethylene and acetylene. Non-thermal plasmas, due to their unique nonequilibrium characteristics, offer advantages over traditional methods of methane reforming. Different kinds of non-thermal plasmas are being investigated for methane reforming. Parameters of these processes like flow rate, discharge size, temperature and other variables determine efficiency of conversion. An efficient process is identified by a high yield and low specific energy of production for the desired product. A study of previous work reveals that higher energy density systems are more efficient for methane conversion to higher hydrocarbons as compared to low energy density systems. Some of the best results were found to be in the regime of warm discharges. Thermal equilibrium studies indicate that higher yields of ethylene are possible with an optimal control of reaction kinetics and fast quenching. With this idea, two different glow discharge reactor systems are designed and constructed for investigation of methane reforming. A counter flow micro plasma discharge system was used to investigate the trends of methane reforming products and the control parameters were optimized to get best possible ethylene yields while minimizing its specific energy. Later a magnetic glow discharge system is used and better results are obtained. Energy costs lower than thermal equilibrium calculations were achieved with magnetic glow discharge systems for both ethylene and acetylene. Yields are obtained from measurements of product concentrations using gas chromatography and power measurements are done using oscilloscope. Energy balance and mass balances are performed for product measurement accuracy and carbon deposition calculations. Carbon deposition is minimized through control of the temperature and residence time conditions in magnetic glow discharges. Ethylene production is observed to have lower specific energies at higher powers and lower flow rates in both reactors. An ethylene selectivity of 40 percent is achieved at an energy cost of 458MJ/Kg and an input energy cost of 5 MJ/Kg of methane.

Parimi, Sreekar

2010-12-01T23:59:59.000Z

243

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

244

Operation of an aircraft engine using liquefied methane fuel  

SciTech Connect

The operation of a reciprocating aircraft engine on methane fuel is demonstrated. Since storage of the methane fuel in the gaseous state would impractical for a flight fuel system, a liquid storage system was used. System valving was configured to deliver only liquid methane to the engine supply line. The equipment description includes photo and diagram illustrations of the liquid methane storage dewar, and photos of the methane heat exchanger, pressure regulator and air-fuel mixer. The engine test results are presented for gasoline and methane in terms of RPM, horsepower, fuel flow, specific energy consumption and standard conditions horsepower. Conclusions include the finding that conversion of an aircraft reciprocating engine to operate on liquified methane is possible with very satisfactory results.

Raymer, J.A.

1982-01-01T23:59:59.000Z

245

Entanglement production in Quantized Chaotic Systems  

E-Print Network (OSTI)

Quantum chaos is a subject whose major goal is to identify and to investigate different quantum signatures of classical chaos. Here we study entanglement production in coupled chaotic systems as a possible quantum indicator of classical chaos. We use coupled kicked tops as a model for our extensive numerical studies. We find that, in general, presence of chaos in the system produces more entanglement. However, coupling strength between two subsystems is also very important parameter for the entanglement production. Here we show how chaos can lead to large entanglement which is universal and describable by random matrix theory (RMT). We also explain entanglement production in coupled strongly chaotic systems by deriving a formula based on RMT. This formula is valid for arbitrary coupling strengths, as well as for sufficiently long time. Here we investigate also the effect of chaos on the entanglement production for the mixed initial state. We find that many properties of the mixed state entanglement production are qualitatively similar to the pure state entanglement production. We however still lack an analytical understanding of the mixed state entanglement production in chaotic systems.

Jayendra N. Bandyopadhyay; Arul Lakshminarayan

2005-01-20T23:59:59.000Z

246

Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 9, October 1--December 31, 1988  

DOE Green Energy (OSTI)

The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that later can be converted to either liquid fuels or value-added chemicals, as economics dictate. During this reporting period, we completed our IR spectroscopic examination of the Ru{sub 4}/MgO and FeRu{sub 3}/MgO systems under nitrogen and methane by examining FeRu{sub 3}/MgO under methane. This system behaved quite differently than the same system under nitrogen. Under methane, only one very broad peak is observed at room temperature. Upon heating, the catalyst transformed so that by 300{degrees}C, the spectrum of FeRu{sub 3}/MgO under methane was the same as that of Ru{sub 4}/MgO. This suggests that methane promotes the segregation of the metals in the mixed metal system. The differences in catalytic activity between the FeRu{sub 3}/MgO and Ru{sub 4}/MgO systems may then be due to the presence of IR transparent species such as iron ions which cause different nucleation in the ruthenium clusters. We examined several systems for activity in the methane dehydrogenation reaction. Focusing on systems which produce C{sub 6} hydrocarbons since this is the most useful product. These systems all displayed low activity so that the amount of hydrocarbon product is very low. Some C{sub 6} hydrocarbon is observed over zeolite supports, but its production ceases after the first few hours of reaction. We prepared a new system, Ru{sub 4} supported on carbon, and examined its reactivity. Its activity was very low and in fact the carbon support had the same level of activity. We synthesized four new systems for examination as catalysts in the partial oxidation of methane. Three of these (PtTSPC/MgO, PtTSPC and PdTSPC on carbon) are analogs of PdTSPC/MgO. This system is of interest because we have observed the production of ethane from methane oxidation over PdTSPC/MgO at relatively low temperatures and we wished to explore its generality among close analogs.

Wilson, R.B. Jr.; Posin, B.M.; Chan, Yee Wai

1989-03-10T23:59:59.000Z

247

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

248

Application of numerical, experimental and life cycle assessment methods to the investigation of natural gas production from methane hydrate deposits using carbon dioxide clathrate sequestration.  

E-Print Network (OSTI)

??Natural gas hydrates, commonly called methane (CH4) hydrates, are ice-like materials belonging to the family of clathrates that form at low temperature and high pressure.… (more)

Nago, Annick

2013-01-01T23:59:59.000Z

249

Methane Recovery from Animal Manures The Current Opportunities Casebook  

DOE Green Energy (OSTI)

Growth and concentration of the livestock industry create opportunities for the proper disposal of the large quantities of manures generated at dairy, swine, and poultry farms. Pollutants from unmanaged livestock wastes can degrade the environment, and methane emitted from decomposing manure may contribute to global climate change. One management system not only helps prevent pollution but can also convert a manure problem into a new profit center. Economic evaluations and case studies of operating systems indicate that the anaerobic digestion of livestock manures is a commercially viable conversion technology with considerable potential for providing profitable coproducts, including a cost-effective renewable fuel for livestock production operations. This casebook examines some of the current opportunities for recovering methane from anaerobic digestion animal manures.

Lusk, P.

1998-09-22T23:59:59.000Z

250

Applied reaction dynamics: Efficient synthesis gas production via single collision partial oxidation of methane to CO on Rh,,111...  

E-Print Network (OSTI)

of the synthetic fuels examined in the journal paper, namely Fischer-Tropsch fuels (diesel and gasoline blendstocks processes included in our analysis. 2 Synthetic Fuels Included in the Analysis 2.1 Fischer-Tropsch Fuels The product of Fischer-Tropsch (FT) synthesis is a mixture of straight-chain hydrocarbons (olefins

Sibener, Steven

251

Direct catalytic conversion of methane and light hydrocarbon gases. Final report, October 1, 1986--July 31, 1989  

DOE Green Energy (OSTI)

This project explored conversion of methane to useful products by two techniques that do not involve oxidative coupling. The first approach was direct catalytic dehydrocoupling of methane to give hydrocarbons and hydrogen. The second approach was oxidation of methane to methanol by using heterogenized versions of catalysts that were developed as homogeneous models of cytochrome-P450, an enzyme that actively hydroxylates hydrocarbons by using molecular oxygen. Two possibilities exist for dehydrocoupling of methane to higher hydrocarbons: The first, oxidative coupling to ethane/ethylene and water, is the subject of intense current interest. Nonoxidative coupling to higher hydrocarbons and hydrogen is endothermic, but in the absence of coke formation the theoretical thermodynamic equilibrium yield of hydrocarbons varies from 25% at 827{degrees}C to 65% at 1100{degrees}C (at atmospheric pressure). In this project we synthesized novel, highly dispersed metal catalysts by attaching metal clusters to inorganic supports. The second approach mimics microbial metabolism of methane to produce methanol. The methane mono-oxygenase enzyme responsible for the oxidation of methane to methanol in biological systems has exceptional selectivity and very good rates. Enzyme mimics are systems that function as the enzymes do but overcome the problems of slow rates and poor stability. Most of that effort has focused on mimics of cytochrome P-450, which is a very active selective oxidation enzyme and has a metalloporphyrin at the active site. The interest in nonporphyrin mimics coincides with the interest in methane mono-oxygenase, whose active site has been identified as a {mu}-oxo dinuclear iron complex.We employed mimics of cytochrome P-450, heterogenized to provide additional stability. The oxidation of methane with molecular oxygen was investigated in a fixed-bed, down-flow reactor with various anchored metal phthalocyanines (PC) and porphyrins (TPP) as the catalysts.

Wilson, R.B. Jr.; Posin, B.M.; Chan, Yee-Wai

1995-06-01T23:59:59.000Z

252

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.

253

Production of elemental sulfur and methane from H{sub 2}S and CO{sub 2} derived from a coal desulfurization process. Final report, September 1, 1993--March 31, 1997  

DOE Green Energy (OSTI)

The purpose of this study was to experimentally and theoretically investigate the feasibility of producing elemental sulfur, carbon monoxide, hydrogen and possible methane from hydrogen sulfide and carbon dioxide through catalytic reactions. A novel experimental system that could evaluate potential catalysts and adsorbents under controlled laboratory conditions was designed and constructed. Additionally an effective simulation program capable of providing valuable thermodynamic information on the reaction system was compiled. The following tasks have been performed: (1) design and construction of an experimental system for the catalyst preparation and catalyst screening studies including frequent modifications of the experimental setup to meet specific application needs; (2) installation and calibration of related analytical instruments, and investigation of the temperature distribution profile inside the reactor; (3) preparation, reduction, sulfidation of potential catalysts, and measurements of specific surface area of catalysts; (4) decomposition of H{sub 2}S under both non-catalytic condition and catalytic condition with the CoO-MoO{sub 3}-alumina catalyst at moderate temperatures around 550 C. Analyses of the product gas by gas chromatograph; and (5) thermodynamic studies on the theoretical conversions of H{sub 2}S for various temperatures, pressures and ratios of H{sub 2}S to CO{sub 2}. Based on the results of the above tasks, bench scale experiments were performed with the CoO-MoO{sub 3}-alumina catalyst at moderate temperatures around 550 C to investigate the adsorption effects of solid sorbents in order to remove sulfur from the reaction environment. Four kinds of adsorbents have been tested along with several designs of solid adsorbent feed systems.

Jiang, X.; Khang, S.J.; Keener, T.C.

1997-12-31T23:59:59.000Z

254

The Numerical Simulation of Conventional Ground Coalbed Methane Development  

Science Conference Proceedings (OSTI)

The migration, accumulation, and production of coalbed methane (CBM) are absolutely different from the conventional natural gas. The mechanism of the migration and production of CBM are researched and the geological model of CBM reservoir simulation ... Keywords: coalbed methane, numerical simulation, desportion-diffusion, two phase flow, fully implicit finite difference

Lin Xiaoying; Liu Guowei; Su Xianbo

2009-07-01T23:59:59.000Z

255

Levelized life-cycle costs for four residue-collection systems and four gas-production systems  

DOE Green Energy (OSTI)

Technology characterizations and life-cycle costs were obtained for four residue-collection systems and four gas-production systems. All costs are in constant 1981 dollars. The residue-collection systems were cornstover collection, wheat-straw collection, soybean-residue collection, and wood chips from forest residue. The life-cycle costs ranged from $19/ton for cornstover collection to $56/ton for wood chips from forest residues. The gas-production systems were low-Btu gas from a farm-size gasifier, solar flash pyrolysis of biomass, methane from seaweed farms, and hydrogen production from bacteria. Life-cycle costs ranged from $3.3/10/sup 6/ Btu for solar flash pyrolysis of biomass to $9.6/10/sup 6/ Btu for hydrogen from bacteria. Sensitivity studies were also performed for each system. The sensitivity studies indicated that fertilizer replacement costs were the dominate costs for the farm-residue collection, while residue yield was most important for the wood residue. Feedstock costs were most important for the flash pyrolysis. Yields and capital costs are most important for the seaweed farm and the hydrogen from bacteria system.

Thayer, G.R.; Rood, P.L.; Williamson, K.D. Jr.; Rollett, H.

1983-01-01T23:59:59.000Z

256

Selective methane oxidation over promoted oxide catalysts  

DOE Green Energy (OSTI)

Principal accomplishments have been achieved in all three areas of selective catalytic oxidation of methane that have been pursued in this research project. These accomplishments are centered on the development of catalyst systems that produce high space time yields of C{sub 2} hydrocarbon products, formaldehyde, and methanol from methane/air mixtures at moderate temperatures and at ambient pressure. The accomplishments can be summarized as the following: the SO{sub 4}{sup 2{minus}}/SrO/La{sub 2}O{sub 3} catalyst developed here has been further optimized to produce 2 kg of C{sub 2} hydrocarbons/kg catalyst/hr at 550C; V{sub 2}O{sub 5}SiO{sub 2} catalysts have been prepared that produce up to 1.5 kg formaldehyde/kg catalyst/hr at 630C with CO{sub 2} selectivities; and a novel dual bed catalyst system has been designed and tested that produces over 100 g methanol/kg catalyst/hr at 600C.

Klier, K.; Herman, R.G.

1995-06-01T23:59:59.000Z

257

Dense ceramic membranes for methane conversion  

DOE Green Energy (OSTI)

This report focuses on a mechanism for oxygen transport through mixed- oxide conductors as used in dense ceramic membrane reactors for the partial oxidation of methane to syngas (CO and H{sub 2}). The in-situ separation of O{sub 2} from air by the membrane reactor saves the costly cryogenic separation step that is required in conventional syngas production. The mixed oxide of choice is SrCo{sub 0.5}FeO{sub x}, which exhibits high oxygen permeability and has been shown in previous studies to possess high stability in both oxidizing and reducing conditions; in addition, it can be readily formed into reactor configurations such as tubes. An understanding of the electrical properties and the defect dynamics in this material is essential and will help us to find the optimal operating conditions for the conversion reactor. In this paper, we discuss the conductivities of the SrFeCo{sub 0.5}O{sub x} system that are dependent on temperature and partial pressure of oxygen. Based on the experimental results, a defect model is proposed to explain the electrical properties of this system. The oxygen permeability of SrFeCo{sub 0.5}O{sub x} is estimated by using conductivity data and is compared with that obtained from methane conversion reaction.

Balachandran, U.; Mieville, R.L.; Ma, B. [Argonne National Lab., IL (United States); Udovich, C.A. [Amoco Oil Co., Naperville, IL (United States)

1996-05-01T23:59:59.000Z

258

Methane oxidation over dual redox catalysts  

SciTech Connect

The objective of this research is to develop approaches to direct catalytic oxidation of methane over oxides that are doubly doped with transition metal ions. The desired process aims at employing a double redox mechanism, where one redox couple is utilized for activation of oxygen and another for the trapping of CH{sub 3} radicals. The methyl radicals can either recombine, giving C{sub 2} hydrocarbons, or be converted, via electron transfer reaction, to carbocations. The latter species can react with surface OH{sup {minus}} groups to form methanol or formaldehyde. To choose from several possible catalytic systems, this research initially involved the characterization of the micromorphology and crystalline dimensions of zinc oxide catalysts doped with Cu, Fe, and Sn by scanning electron microscopy. In addition, the determination of surface composition and oxidation states by X-ray photoelectron spectroscopy was carried out. A newly constructed high temperature catalytic testing system has been calibrated (flow meters and temperature controllers), tested for possible gas leaks and integrated with a gas chromatographic analytical unit. A preliminary catalytic test study over a Cu/Fe/ZnO sample was performed. The following products of the methane coupling reaction was found: C{sub 2}H{sub 6}, C{sub 2}H{sub 4} and H{sub 2}O together with CO{sub 2}. The maximum space time yield of 14 mmol C{sub 2} hydrocarbons/g cat/h was obtained at 848{degrees}C.

Klier, K.; Herman, R.G.; Sojka, Z.

1989-09-01T23:59:59.000Z

259

NETL: Methane Hydrates - Methane Hydrate Library  

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

Ridge region Ongoing areas of study in the Hydrate Ridge region Map showing where gas hydrates occur off the Cascadia Margin Locations of methane hydrate off the Cascadia Margin...

260

NETL: Methane Hydrates - Methane Hydrate Reference Shelf  

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

Hydrates Primer provides background and general information about the history of hydrate R&D, the science of methane hydrates, their occurrences, and R&D related issues. Photo...

Note: This page contains sample records for the topic "methane production system" 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

Remote sensor improves methane leakage surveys  

SciTech Connect

The remote sensing methane detector (RSMD) described in this paper is the result of a twelve year cooperative research program sponsored by the Columbia Gas System Service Corp., Environmental Research and Technology, Inc. and the Gas Research Institute. It is a hand-held, rechargeable battery-powered sensor that operates eight hours on one charge with a sensitivity very specific to methane. It can be scanned along the right of way to detect any methane in its path, up to at least 50 feet away. The RSMD is methane specific in that it only sense methane with minor sensitivity to ethane. This makes it particularly useful in industrial areas where present instruments are confused by solvents. It cannot be poisoned by silicones or leaded gasoline, since it is an optical system. When a cloud of methane has been detected by the RSMD, a sample cell attachment can be used to determine methane concentration in parts per million. A low power microcomputer is used in the RSMD to control its operation.

Eberle, A.C.; Kebabian, P.L.; Kruse, J.R.

1984-12-01T23:59:59.000Z

262

Utilization of geothermal energy for methane production for J. A. Albertson Land and Cattle Company. Final report  

DOE Green Energy (OSTI)

The feasibility of an integrated system to utilize a geothermal resource for a bioconversion plant. This integrated facility would use the manure from approximately 30,000 head of feedlot cattle as a feedstock for an anaerobic digestion plant. The findings on engineering design, geological assessment, environmental, economic, and institutional requirements of the proposed project are summarized. (MHR)

Not Available

1980-07-01T23:59:59.000Z

263

NETL: Methane Hydrates - DOE/NETL Projects - Advanced Hydrate...  

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

is to develop analytical techniques capable of quantitatively evaluating the nature of methane hydrate reservoir systems through modeling of their acoustic response using...

264

NETL: Methane Hydrates - DOE/NETL Projects - GAS HYDRATE DYNAMICS...  

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

the first systematic geochemical and microbiological data to constrain subseafloor methane sinks and the spatio-temporal changes in the nature of microbial systems and pore...

265

NETL-ORD Methane Hydrate Project - Micro XCT Characterization...  

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

the experimental systempressure vessel development and system parameter optimization, methane hydrate will be formed and dissociated in packed sediments. Micro-XCT scans will be...

266

Study on the Principle and Technology of Coal and Methane Simultaneous Extraction Based on the Mining Fissure Elliptic Parabolic Zone  

Science Conference Proceedings (OSTI)

Coal and coal-bed methane are all valuable energy resource, if they can be extracted simultaneously and safely, the triple purposes of mine safety production, new energy resource supply and environment protection can be fulfilled. The coal-bed methane ... Keywords: Mining induced fissure, Elliptic Parabolic Zone, Relieved methane, Coal, methane simultaneous extraction

Lin Haifei; Li Shugang; Cheng Lianhua; Pan Hongyu

2011-02-01T23:59:59.000Z

267

A Systems Framework for Assessing Plumbing Products-Related Water...  

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

A Systems Framework for Assessing Plumbing Products-Related Water Conservation Title A Systems Framework for Assessing Plumbing Products-Related Water Conservation Publication Type...

268

Discovery of New Materials to Capture Methane | U.S. DOE Office...  

Office of Science (SC) Website

produce high-purity methane from natural gas systems and separate methane from coal mine ventilation systems. Print Text Size: A A A Subscribe FeedbackShare Page Click to...

269

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

270

Plasma—Methane Reformation  

INL thermal plasma methane reformation process produces hydrogen and elemental carbon from natural gas and other hydrocarbons, such as natural gas or ...

271

Trends Online Methane Emissions  

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

Emissions Introduction Annual Estimates of Global Anthropogenic Methane Emissions: 1860-1994 - D.I. Stern and R.K. Kaufmann Contents-Trends | CDIAC Home 102001...

272

Dairy methane generator. Final report  

Science Conference Proceedings (OSTI)

Details of the work completed under this contract are presented. During the winter of 1979-80 three students enrolled, in the Mechanical Design Engineering Technology program at the Pennsylvania State University's Capitol Campus (Middletown, PA), undertook a feasibility study for the utilization of the manure generated by the dairy cows located on Mr. Thomas B. Williams farm for the generation and use of methane gas. The results of their effort was the design of an Anaerobic Digester/Electric Generation System. This preliminary designed system was later changed and improved by another group of P.S.U. MDET students in the spring of 1980. The final design included working drawings and an economic analysis of the estimated investment necessary to complete the Methane Generator/Electric Power Generation System.

Williams, T.B.

1981-09-30T23:59:59.000Z

273

ADVANCED GASIFICATION-BASED FUEL CONVERSION AND ELECTRIC ENERGY PRODUCTION SYSTEM  

SciTech Connect

Boise Cascade Corporation and the Gas Technology Institute (GTI) are cooperating to develop, demonstrate and place in continuous operation an advanced biomass gasification-based power generation system suitable for near-term commercial deployment in the Forest Products Industry. The system will be used in conjunction with, rather than in place of, existing wood waste fired boilers and flue gas cleanup systems. The novel system will include three advanced technological components based on GTI's RENUGAS{reg_sign} and METHANE de-NOX{reg_sign} technologies, and a gas turbine-based power generation concept developed in DOE's High Performance Power System (HIPPS) program. The system has, as its objective, to avoid the major hurdles of high-pressure gasification, i.e., high-pressure fuel feeding and ash removal, and hot gas cleaning that are typical for conventional IGCC power generation. It aims to also minimize capital intensity and technology risks. The system is intended to meet the immediate needs of the forest products industry for highly efficient and environmentally friendly electricity and steam generation systems utilizing existing wood waste as fuel resources.

Joseph Rabovitser; Bruce Bryan

2002-01-01T23:59:59.000Z

274

ADVANCED GASIFICATION-BASED FUEL CONVERSION AND ELECTRIC ENERGY PRODUCTION SYSTEM  

DOE Green Energy (OSTI)

Boise Cascade Corporation and the Gas Technology Institute (GTI) are cooperating to develop, demonstrate and place in continuous operation an advanced biomass gasification-based power generation system suitable for near-term commercial deployment in the Forest Products Industry. The system will be used in conjunction with, rather than in place of, existing wood waste fired boilers and flue gas cleanup systems. The novel system will include three advanced technological components based on GTI's RENUGAS{reg_sign} and METHANE de-NOX{reg_sign} technologies, and a gas turbine-based power generation concept developed in DOE's High Performance Power System (HIPPS) program. The system has, as its objective, to avoid the major hurdles of high-pressure gasification, i.e., high-pressure fuel feeding and ash removal, and hot gas cleaning that are typical for conventional IGCC power generation. It aims to also minimize capital intensity and technology risks. The system is intended to meet the immediate needs of the forest products industry for highly efficient and environmentally friendly electricity and steam generation systems utilizing existing wood waste as fuel resources.

Joseph Rabovitser; Bruce Bryan

2002-01-01T23:59:59.000Z

275

Methane Hydrate Advisory Committee Charter | Department of Energy  

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

Charter Methane Hydrate Advisory Committee Charter Methane Hydrate Advisory Committee Charter Methane Hydrate Advisory Committee Charter...

276

Potential of Floriculture Residue For Biogas Production.  

E-Print Network (OSTI)

??Production of methane reach biogas through anaerobic digestion of organic material provides versatile carrier of renewable energy, as methane can be used in replacement for… (more)

TAMRAT, ASNAKE

2008-01-01T23:59:59.000Z

277

Method and system for ethanol production  

DOE Patents (OSTI)

A transition metal carbonyl and a tertiary amine are employed as a homogeneous catalytic system in methanol or a less volatile solvent to react methanol with carbon monoxide and hydrogen gas producing ethanol and carbon dioxide. The gas contains a high carbon monoxide to hydrogen ratio as is present in a typical gasifier product. The reaction has potential for anhydrous ethanol production as carbon dioxide rather than water is produced. Selected transition metal carbonyls include those of iron, rhodium ruthenium, manganese in combination with iron and possibly osmium. Selected amines include trimethylamine, N-Methylpyrrolidine, 2,4-diazabicyclooctane, dimethylneopentylamine, N-methylpiperidine and derivatives of N-methylpiperidine.

Feder, Harold M. (Darien, IL); Chen, Michael J. (Darien, IL)

1983-01-01T23:59:59.000Z

278

Method and system for ethanol production  

DOE Patents (OSTI)

A transition metal carbonyl and a tertiary amine are employed as a homogeneous catalytic system in methanol or a less volatile solvent to react methanol with carbon monoxide and hydrogen gas producing ethanol and carbon dioxide. The gas contains a high carbon monoxide to hydrogen ratio as is present in a typical gasifier product. The reaction has potential for anhydrous ethanol production as carbon dioxide rather than water is produced. Selected transition metal carbonyls include those of iron, rhodium, ruthenium, manganese in combination with iron and possibly osmium. Selected amines include trimethylamine, N-Methylpyrrolidine, 2,4-diazabicyclooctane, dimethylneopentylamine, N-methylpiperidine and derivatives of N-methylpiperidine.

Feder, H.M.; Chen, M.J.

1981-09-24T23:59:59.000Z

279

Parallel machine architecture for production rule systems  

DOE Patents (OSTI)

A parallel processing system for production rule programs utilizes a host processor for storing production rule right hand sides (RHS) and a plurality of rule processors for storing left hand sides (LHS). The rule processors operate in parallel in the recognize phase of the system recognize -Act Cycle to match their respective LHS's against a stored list of working memory elements (WME) in order to find a self consistent set of WME's. The list of WME is dynamically varied during the Act phase of the system in which the host executes or fires rule RHS's for those rules for which a self-consistent set has been found by the rule processors. The host transmits instructions for creating or deleting working memory elements as dictated by the rule firings until the rule processors are unable to find any further self-consistent working memory element sets at which time the production rule system is halted.

Allen, Jr., John D. (Knoxville, TN); Butler, Philip L. (Knoxville, TN)

1989-01-01T23:59:59.000Z

280

Production system improvement : floor area reduction and inventory optimization  

E-Print Network (OSTI)

This thesis shows improvements of a medical device production system. The demand at the Medical Device Manufacturing Company (MDMCą) is low for the occlusion system product and there is a need to introduce other production ...

Yang, Tianying, M. Eng. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Methane cracking over a bituminous coal char  

Science Conference Proceedings (OSTI)

Methane cracking over a bed of Chinese bituminous coal char was studied using a fixed-bed reactor at atmospheric pressure and temperatures between 1073 and 1223 K. Methane conversion over the fresh char increased with increasing temperature to 90% at 1223 K. Hydrogen was the only gas-phase product that was detected during the experimentation. The char was shown to exert a significant catalytic effect on methane cracking by comparing results from experiments with the raw char and demineralised char as well as from blank experiments using quartz. It was further shown that the ash was not the source of the catalytic effect of the char. However, both methane conversion and hydrogen yield decreased with increasing reaction time, irrespective of other experimental conditions, indicating that the char rapidly became deactivated following the exposure to methane. It was speculated that the deposition of carbon from methane cracking was responsible for this deactivation, which is supported by scanning electron microscopy (SEM) image analysis. It was demonstrated that the catalytic activity of the deactivated char can be partially recovered by burning off the carbon deposits with an oxidizing gas mixture containing 0.46% oxygen. 10 refs., 11 figs., 1 tab.

Zhi-qiang Sun; Jin-hu Wu; Mohammad Haghighi; John Bromly; Esther Ng; Hui Ling Wee; Yang Wang; Dong-ke Zhang [Chinese Academy of Sciences, Taiyuan (China). Institute of Coal Chemistry

2007-06-15T23:59:59.000Z

282

Methane level rise blamed in greenhouse effect  

SciTech Connect

As scientists continue to probe effects of global warming trends and the greenhouse effect, increasing attention is being placed on the impact of methane. Last year, scientists at the University of California in Irvine found there were almost 1.7 parts per million of methane in the troposphere- 11% higher that a decade ago and climbing at 1% annually. European scientists came up with similar analyses, and the belief is that methane is currently 2.4 times higher than it has ever been in the last 160,000 years. The big challenge now is to identify the sources of the methane. About 15 to 20% can be traced to oil and gas wells, coal mining and other tapping of the gas trapped in the planet's crust. Other sources are bacteria working in tropical rain forests, burned-off clearings, etc. Cattle figure high on the list of methane generators. When domesticated herds of sheep, goats, pigs, etc. are figured, the total rises to 73 million metric tons per year- a 435% increase since 1890. Rice paddies are also rated a major source of methane. It's estimated that 115 million metric tons rise from rice paddies a year, as much as is coming from natural swamps and wetlands. When scientists added up all the published estimates of methane production, the total ranged from 400 million to 640 million metric tons a year. Estimates of how much methane the atmosphere can handle are similarly uncertain, ranging from 300 million to 650 million metric tons a year.

1989-01-01T23:59:59.000Z

283

Thermodynamic investigation into steam-methane reforming and the synthesis of methane from carbon monoxide and hydrogen  

SciTech Connect

In this study the stream-methane equilibrium reaction was investigated by considering both methane synthesis from hydrogen and carbon monoxide and by considering steam-methane reforming from methane and steam. A FORTRAN computer program was written to carry out all the calculations over a wide range of temperatures, pressures, and initial compositions. The products of each process as a function of pressure, temperature, and starting ratio of reactant gases were calculated, as well as the heats involved. In both processes the minimum ratios above which no carbon precipitates were determined as a function of temperature and pressure were given.

Wu, L.H.; Lietzke, M.H.

1976-11-01T23:59:59.000Z

284

PYROLYSIS OF METHANE IN A SUPERSONIC, ARC-HEATED FLOW  

E-Print Network (OSTI)

arc pyrolysis of methane at supersonic conditions, representative of conditions in the reformer is then reformed or cracked to produce hydrogen. The hy- drocarbon of choice is methane because of its highest material instead of as a fuel. Amongst various hydrogen production technologies,7 steam reformation

Texas at Arlington, University of

285

Combined Steam Reforming and Partial Oxidation of Methane to Synthesis Gas under Electrical Discharge  

E-Print Network (OSTI)

Combined Steam Reforming and Partial Oxidation of Methane to Synthesis Gas under Electrical production from simultaneous steam reforming and partial oxidation of methane using an ac corona discharge and steam reforming has a benefit in terms of balancing the heat load. Methane conversions can be achieved

Mallinson, Richard

286

An assessment of subsea production systems  

E-Print Network (OSTI)

The decreasing gap between technology and the it?s applicability in the oil industry has led to a rapid development of deepwater resources. Beginning with larger fields where the chances of economic success are high, to marginal fields where project economics becomes a more critical parameter, the petroleum industry has come a long way. However, the ever growing water depths and harsher environments being encountered are presently posing challenges to subsea production. Being able to develop a field and then proceeding to ensure flow for the life of the field comprises many situations where the production equipment can fail and falter or through external factors, be deemed unavailable. Some of the areas where most of the current developments in subsea production are being seen are in subsea processing, flow assurance, long term well monitoring and intervention technologies ? areas that pose some of the biggest challenges to smooth operation in the deepwater environment. This research highlights the challenges to overcome in subsea production and well systems and details the advances in technology to mitigate those problems. The emphasis for this part of the research is on multiphase pumping, subsea processing, flow assurance, sustained casing pressure problems and well intervention. Furthermore, most operators realize a reduced ultimate recovery from subsea reservoirs owing to the higher backpressure imposed by longer flowlines and taller risers. This study investigates the reasons for this by developing a global energy balance and detailing measures to improve production rates and ultimate recoveries. The conclusions from this energy balance are validated by simulating a deepwater field under various subsea production scenarios.

Devegowda, Deepak

2003-12-01T23:59:59.000Z

287

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."

288

Gas Production From a Cold, Stratigraphically Bounded Hydrate Deposit at the Mount Elbert Site, North Slope, Alaska  

E-Print Network (OSTI)

Mallik 2002 Gas Hydrate Production Research Well Program,Of Methane Hydrate Production Methods To Reservoirs WithNumerical Studies of Gas Production From Methane Hydrates,

Moridis, G.J.

2010-01-01T23:59:59.000Z

289

The Effect of Oxygen to Methane Ratio on the Methane-wet Air Autothermal Reforming and Carbon Deposition in the Micro-chamber  

Science Conference Proceedings (OSTI)

Considering the problems of catalyst carbon deposition and reforming endothermic reaction in micro-reforming chamber, coupled methane catalyst partial oxidation and steam methane reforming can make the micro-reforming system auto-supply heat and inhibit ... Keywords: micro-chamber, autothermal reforming, carbon deposition, oxygen to methane ratio

Ran Jingyu; Tu Weifeng

2011-01-01T23:59:59.000Z

290

Methods for applying microchannels to separate methane using liquid absorbents, especially ionic liquid absorbents from a mixture comprising methane and nitrogen  

SciTech Connect

Methods of using microchannel separation systems including absorbents to improve thermal efficiency and reduce parasitic power loss. Energy is typically added to desorb methane and then energy or heat is removed to absorb methane using a working solution. The working solution or absorbent may comprise an ionic liquid, or other fluids that demonstrate a difference in affinity between methane and nitrogen in a solution.

Tonkovich, Anna Lee Y. (Dublin, OH); Litt, Robert D. (Westerville, OH); Dongming, Qiu (Dublin, OH); Silva, Laura J. (Plain City, OH); Lamont, Micheal Jay (Plain City, OH); Fanelli, Maddalena (Plain City, OH); Simmons, Wayne W. (Plain city, OH); Perry, Steven (Galloway, OH)

2011-10-04T23:59:59.000Z

291

DEVELOPMENT OF COAL BED METHANE UTILIZING GIS TECHNOLOGIES  

Science Conference Proceedings (OSTI)

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 were the advancements in Geographical Information Systems (GIS) technologies generating terra-bytes of new data for the oil and gas industry. Coupled to these accelerating initiatives are many environmental concerns relating to production wastes and water table depletion of fresh water resources. It is these concerns that prompted a vital need within the industry for the development of Best Management Practices (BMPs) and mitigation strategies utilizing GIS technologies for efficient environmental protection in conjunction with effective production of CBM. This was accomplished by developing a framework to take advantage of a combination of investigative field research joined with leading edge GIS technologies for the creation of environmentally characterized regions of study. Once evaluated these regions had BMP's developed to address their unique situations for Coal Bed Methane production and environmental protection. Results of the project will be used to support the MBOGC's Programmatic Environmental Impact Statement as required by the Montana Environmental Policy Act (MEPA) and by the BLM for NEPA related issues for acreage having federally owned minerals.

J. Daniel Arthur

2003-04-01T23:59:59.000Z

292

Insights Into the P-To-Q Conversion in the Catalytic Cycle of Methane Monooxygenase From a Synthetic Model System  

DOE Green Energy (OSTI)

For the catalytic cycle of soluble methane monooxygenase (sMMO), it has been proposed that cleavage of the O-O bond in the ({mu}-peroxo)diiron(III) intermediate P gives rise to the diiron(IV) intermediate Q with an Fe{sub 2}({mu}-O){sub 2} diamond core, which oxidizes methane to methanol. As a model for this conversion, ({mu}-oxo) diiron(III) complex 1 ([Fe{sup III}{sub 2}({mu}-O)({mu}-O{sub 2}H{sub 3})(L){sub 2}]{sup 3+}, L = tris(3,5-dimethyl-4-methoxypyridyl-2-methyl)amine) has been treated consecutively with one eq of H{sub 2}O{sub 2} and one eq of HClO{sub 4} to form 3 ([Fe{sup IV}{sub 2}({mu}-O){sub 2}(L){sub 2}]{sup 4+}). In the course of this reaction a new species, 2, can be observed before the protonation step; 2 gives rise to a cationic peak cluster by ESI-MS at m/z 1,399, corresponding to the [Fe{sub 2}O{sub 3}L{sub 2}H](OTf){sub 2}{sup +} ion in which 1 oxygen atom derives from 1 and the other two originate from H{sub 2}O{sub 2}. Moessbauer studies of 2 reveal the presence of two distinct, exchange coupled iron(IV) centers, and EXAFS fits indicate a short Fe-O bond at 1.66 {angstrom} and an Fe-Fe distance of 3.32 {angstrom}. Taken together, the spectroscopic data point to an HO-Fe{sup IV}-O-Fe{sup IV} = O core for 2. Protonation of 2 results in the loss of H{sub 2}O and the formation of 3. Isotope labeling experiments show that the [Fe{sup IV}{sub 2}({mu}-O){sub 2}] core of 3 can incorporate both oxygen atoms from H{sub 2}O{sub 2}. The reactions described here serve as the only biomimetic precedent for the conversion of intermediates P to Q in the sMMO reaction cycle and shed light on how a peroxodiiron(III) unit can transform into an [Fe{sup IV}{sub 2}({mu}-O){sub 2}] core.

Xue, G.; Fiedler, A.T.; Martinho, M.; Munck, E.; Que, L.; Jr.

2009-05-28T23:59:59.000Z

293

Methane Hydrate Advisory Committee Meeting Minutes | Department...  

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

Methane Hydrate Advisory Committee Meeting Minutes Methane Hydrate Advisory Committee Meeting Minutes Methane Hydrate Advisory Committee Meeting Minutes June 6th - 7th, 2013...

294

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

295

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

296

Methane Hydrate Annual Reports  

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

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. Listed are the Annual Reports per...

297

System for the production of plasma  

DOE Patents (OSTI)

The present invention provides a system for the production of a plasma by concentrating and focusing a laser beam on the plasma-forming material with a lightfocusing member which comprises a parabolic axicon in conjunction with a coaxial conical mirror. The apex of the conical mirror faces away from the focus of the parabolic axicon such that the conical mirror serves to produce a virtual line source along the axis of the cone. Consequently, irradiation from a laser parallel to the axis toward the apex of the conical mirror will be concentrated at the focus of the parabolic axicon, impinging upon the plasma-forming material there introduced to produce a plasma. The system is adaptable to irradiation of a target pellet introduced at the focus of the parabolic axicon and offers an advantage in that the target pellet can be irradiated with a high degree of radial and spherical symmetry.

Bakken, George S. (Ann Arbor, MI)

1978-01-01T23:59:59.000Z

298

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

299

Novel catalysts for methane activation. Quarterly report No. 4, July 1, 1993--September 30, 1993  

DOE Green Energy (OSTI)

The objectives of this project are to test novel fullerene based catalysts for application in methane activation. Fullerenes are a recently discovered allotrope of carbon that have been found to possess unusual properties, some of which may be ideal for methane conversion to higher hydrocarbons. The project is divided into three technical tasks. Task 1 deals with the synthesis and characterization of the fullerenes and fullerene soots, Task 2 with the testing of the catalysts, and Task 3 with the evaluation of the results and technical reporting requirements. This quarter the authors concentrated on Task 2. In this task they expanded the capabilities of the system so they can include the effect of diluents during the methane activation experiments and continued work on evaluating the fullerene soot. They investigated the base-line conditions for both thermal reactions and soot-catalyzed reactions of methane. They also added the capability to add diluents such as hydrogen and helium into the reaction system to determine their respective effects on selectivity during the methane activation experiments. They found that the fullerene soot significantly decreased the threshold for the methane activation and C{sub 2} products at temperatures as low as 800{degrees}C, whereas the pure thermal reaction required temperatures in the range of 900 to 950{degrees}C. However, under their conditions the selectivity to C{sub 2} was much lower for the fullerene soot, than for the thermal case. They found that the presence of H{sub 2} helped the selectivity to some degree at a given temperature, but still formed a considerable amount of coke under these condition.

Hirschon, A.S.; Wu, H.J.; Malhotra, R.; Wilson, R.B.

1993-12-03T23:59:59.000Z

300

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

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301

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.

302

Integrated Hydrogen Production, Purification and Compression System  

DOE Green Energy (OSTI)

The project was started in April 2005 with the objective to meet the DOE target of delivered hydrogen of <$1.50/gge, which was later revised by DOE to $2-$3/gge range for hydrogen to be competitive with gasoline as a fuel for vehicles. For small, on-site hydrogen plants being evaluated at the time for refueling stations (the 'forecourt'), it was determined that capital cost is the main contributor to the high cost of delivered hydrogen. The concept of this project was to reduce the cost by combining unit operations for the entire generation, purification, and compression system (refer to Figure 1). To accomplish this, the Fluid Bed Membrane Reactor (FBMR) developed by MRT was used. The FBMR has hydrogen selective, palladium-alloy membrane modules immersed in the reformer vessel, thereby directly producing high purity hydrogen in a single step. The continuous removal of pure hydrogen from the reformer pushes the equilibrium 'forward', thereby maximizing the productivity with an associated reduction in the cost of product hydrogen. Additional gains were envisaged by the integration of the novel Metal Hydride Hydrogen Compressor (MHC) developed by Ergenics, which compresses hydrogen from 0.5 bar (7 psia) to 350 bar (5,076 psia) or higher in a single unit using thermal energy. Excess energy from the reformer provides up to 25% of the power used for driving the hydride compressor so that system integration improved efficiency. Hydrogen from the membrane reformer is of very high, fuel cell vehicle (FCV) quality (purity over 99.99%), eliminating the need for a separate purification step. The hydride compressor maintains hydrogen purity because it does not have dynamic seals or lubricating oil. The project team set out to integrate the membrane reformer developed by MRT and the hydride compression system developed by Ergenics in a single package. This was expected to result in lower cost and higher efficiency compared to conventional hydrogen production technologies. The overall objective was to develop an integrated system to directly produce high pressure, high-purity hydrogen from a single unit, which can meet the DOE cost H2 cost target of $2 - $3/gge when mass produced. The project was divided into two phases with the following tasks and corresponding milestones, targets and decision points. Phase 1 - Task 1 - Verify feasibility of the concept, perform a detailed techno-economic analysis, and develop a test plan; and Task 2: Build and experimentally test a Proof of Concept (POC) integrated membrane reformer/metal hydride compressor system. Phase 2 - Task 3: Build an Advanced Prototype (AP) system with modifications based on POC learning and demonstrate at a commercial site; and Task 4: Complete final product design for mass manufacturing units capable of achieving DOE 2010 H2 cost and performance targets.

Tamhankar, Satish; Gulamhusein, Ali; Boyd, Tony; DaCosta, David; Golben, Mark

2011-06-30T23:59:59.000Z

303

NETL: Methane Hydrates - Barrow Gas Fields - North Slope Borough...  

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

- Drilling and Production Testing the Methane Hydrate Resource Potential associated with the Barrow Gas Fields Last Reviewed 04062010 DE-FC26-06NT42962 Goal The goal of this...

304

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 35.7395875°, -78.8029226° 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":""}]}

305

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report No. 6, July--September 1994  

DOE Green Energy (OSTI)

This is the eighth quarterly technical progress report. During this quarter the project was initiated, after transfer via a novation agreement, at the Colorado School of Mines. Project initiation activities have included: set up of catalyst synthesis apparatus; training on x-ray diffraction and FTIR apparatus; set up of catalyst testing reactor; set up of reactor product analytical systems; and set up of method development for measuring catalyst acidity via FTIR. At the end of this quarter significant progress had been made towards completion of these initiation activities. Several catalyst syntheses have been performed and the catalysts characterized by x-ray diffraction and FTIR. The catalyst testing reactor system is operational. Reactor product analysis system is nearing completion. Initiation of this system was delayed by the unavailability of a Valco valve which has just recently arrived. Set up of the in-situ FTIR cell for catalyst acidity studies has begun. In this report the results of several catalyst syntheses are reported along with characterization results. In particular, impregnation of vanadyl pyrophosphate with potassim nitrate dramatically reduced the number of surface hydroxyl groups. Such groups may be important in the non-selective, total oxidation of hydrocarbons. Also, preliminary experimental results on FTIR spectra of adsorbed pyridine are presented. It is shown that pyridine adsorbed on the catalyst surface can be easily observed by the diffuse reflectance IR technique. We plan to apply this technique to measurement of the acid site strength of surfaces modified with promoters.

McCormick, R.L.

1995-01-10T23:59:59.000Z

306

NETL: Methane Hydrates - Global Assessment of Methane Gas Hydrates  

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

Assessment of Methane Gas Hydrates Last Reviewed 6142013 DE-FE0003060 Goal The goal of this project is to develop a global assessment of methane gas hydrates that will facilitate...

307

Parametric and predictive analysis of horizontal well configurations for coalbed methane reservoirs in Appalachian Basin.  

E-Print Network (OSTI)

??It has been a well-established fact that the Appalachian Basin represents a high potential region for the Coalbed Methane (CBM) production. The thin coal beds… (more)

Maricic, Nikola.

2004-01-01T23:59:59.000Z

308

Assessing systems adaptability to a product family  

Science Conference Proceedings (OSTI)

In many cases, product families are established on top of a successful pilot product. While this approach provides an option to measure many concrete attributes like performance and memory footprint, adequateness and adaptability of the architecture ... Keywords: adaptability, assessment, product line architecture, software product lines

Mika Korhonen; Tommi Mikkonen

2004-07-01T23:59:59.000Z

309

Development of a purpose built landfill system for the control of methane emissions from municipal solid waste  

E-Print Network (OSTI)

of landfill gas (LFG). Economic feasibility of the proposed system has been tested by comparing unit cost with gas recovery option. In the present paper, a methodology called purpose build landfill system (PBLF of the proposed system. A purpose built landfill system (PBLS) is a semi-engi- neered landfill with gas recovery

Columbia University

310

Formation and emission of methane in rice soils: Experimental determination and modeling analysis. Final report  

DOE Green Energy (OSTI)

Rice paddy soils have been identified as a major source of methane emissions contributing to the observed atmospheric increase in methane. This points to the need for a method of quantifying and predicting methane emissions for the widely varying conditions used in rice agriculture throughout the world. In the present work, a mathematical model for estimating the emission of methane from rice paddy soils is developed and refined. Kinetic parameters for methanogenesis in a Louisiana rice soil are determined from laboratory data on methane production from acetic acid substrate. Use of a stirred reactor allows simultaneous measurement of acetate consumption and methane production while minimizing mass transfer limitations. An existing model for rice plant growth is utilized to provide data on the availability of root exudates as a carbon source for the methanogens. The final methane model includes the kinetic parameters, plant data, and estimated transport parameters. With adjustments in these parameters, it provides an acceptable match to field data.

Law, V.J.; Bhattacharya, S.K.

1993-08-31T23:59:59.000Z

311

Methane Emissions - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Carbon Dioxide Equivalent; Estimated 2003 ... for about 8.7 percent of total U.S. greenhouse gas emissions when weighted by methane’s global warming potential factor.

312

Thermal Conversion of Methane to Acetylene  

DOE Green Energy (OSTI)

This report describes the experimental demonstration of a process for the direct thermal conversion of methane to acetylene. The process utilizes a thermal plasma heat source to dissociation products react to form a mixture of acetylene and hydrogen. The use of a supersonic expansion of the hot gas is investigated as a method of rapidly cooling (quenching) the product stream to prevent further reaction or thermal decomposition of the acetylene which can lower the overall efficiency of the process.

Fincke, James Russell; Anderson, Raymond Paul; Hyde, Timothy Allen; Wright, Randy Ben; Bewley, Randy Lee; Haggard, Delon C; Swank, William David

2000-01-01T23:59:59.000Z

313

Cryogenic methane separation/catalytic hydrogasification process analysis. Quarterly report  

Science Conference Proceedings (OSTI)

The objective of this coordinated research program is to obtain the most attractive combinations of acid gas removal, methane separation for the Exxon Catalytic Coal Gasification (CCG) and the Rockwell/Cities Service Hydrogasification processes. The program is divided into nine subtasks with each subtask studying the effect of variation of a key design parameter on the treatment cost of the SNG produced. Progress reports of 8 subtasks are presented. The following are some of the highlights. Subtask 1 - Heat and material balance and equipment sizing was completed for the cryogenic methane separation. The overall material balance is presented in a table. Subtask 2 - Preliminary designs for MEA and DEA gas removal systems were established. Subtasks 3 to 5 - Economic evaluation is in proress. Subtask 6 - The SNG product compressor train was simulated for the case where sufficient SNG fuel is withdrawn from the product compressors to fire the dryer reactivation heater. Subtask 7 - Acid gas removal and cryogenic separation equipment was resized to accommodate Exxon's request for a two-train plant design. Subtask 8 - The Benfield and Selexol systems will be evaluated for acid gas removal.

Klosek, J.

1981-02-13T23:59:59.000Z

314

Dynamic simulation of nuclear hydrogen production systems  

E-Print Network (OSTI)

Nuclear hydrogen production processes have been proposed as a solution to rising CO 2 emissions and low fuel yields in the production of liquid transportation fuels. In these processes, the heat of a nuclear reactor is ...

Ramírez Muńoz, Patricio D. (Patricio Dario)

2011-01-01T23:59:59.000Z

315

Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 6, January 16, 1988--April 15, 1988  

DOE Green Energy (OSTI)

The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that later can be converted to either liquid fuels or value-added chemicals, as economics dictate. During this reporting period, we synthesized several phthalocyanine catalysts supported on magnesia (MgO) in Task 3. In Task 4 we have tested these catalysts for oxidation of methane and did a number of blank experiments to determine the cause of the low methanol yield we have observed. Magnesia supported catalysts were prepared by first synthesizing the various metal tetrasulfophthalocyanines (TSPCs), converting them to the acid form, and then supporting these complexes on a basic support (MgO) by a neutralization reaction. The metals used were Ru, Pd, Cu, Fe, Co, Mn, and Mo. CoTSPC was also synthesized in zeolite Y using our standard template techniques described in Quarterly Report No. 1. These complexes were examined for catalytic activity in the oxidation of methane. The PdTSPC/MgO had greater activity, and oxidized some of the methane (selectivity of 2.8% from the methane oxidized at 375{degrees}C) to ethane. This is a much lower temperature for this reaction than previously reported in the literature. We also examined the reactivity of various components of the system in the oxidation of the product methanol. The reactor showed some activity for the oxidation of methanol to carbon dioxide. When zeolite or magnesia were added, this activity increased. The magnesia oxidized most of the methanol to carbon dioxide, while the zeolite reduced some of the methanol to hydrocarbons. With oxygen in the feed gas stream (i.e., the conditions of our methane oxidation), a very large fraction of the methanol was oxidized to carbon dioxide when passed over magnesia. From this, we can conclude that any methanol formed in the oxidation of methane would probably be destroyed very quickly on the catalyst bed.

Wilson, R.B. Jr.; Chan, Yee Wai; Posin, B.M.

1988-05-20T23:59:59.000Z

316

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

317

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

318

Quantum discord in matrix product systems  

SciTech Connect

We consider a class of quantum systems with spin-flip symmetry and derive the quantum correlation measured by the quantum discord (QD). As an illustration, we investigate the QD in a three-body interaction model and an XYZ interaction model, whose ground states can be expressed as matrix product states, and the QD is exactly soluble. We show that the QD behaves differently than the quantum entanglement (QE) in many ways; for example, they may show opposite monotonicity and completely different finite-size effects. Furthermore, we compare the capability of the QD and the QE to detect quantum phase transitions (QPTs) and find that the QD is more reliable than the QE for signaling QPTs in these models: In the three-body interaction model, the QE is singular at the quantum critical point, however, it exhibits an additional singularity in the noncritical region, while the analyticity of the QD can be used to identify the quantum critical point perfectly; and in the XYZ interaction model, the QE vanishes in the thermodynamic limit, thus losing its ability to detect QPTs, while the QD still functions very well.

Sun Zhaoyu; Li Liang; Du Guihuan [Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074 (China); Yao Kailun; Liu Jiwei; Luo Bo; Li Neng; Li Haina [School of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China)

2010-09-15T23:59:59.000Z

319

Conversion of methane and acetylene into gasoline range hydrocarbons  

E-Print Network (OSTI)

Conversion of methane and acetylene to higher molecular weight hydrocarbons over zeolite catalyst (HZSM-5) was studied The reaction between methane and acetylene successfully produced high molecular weight hydrocarbons, such as naphthalene, benzene, indene, azulene, fluorene, and biphenyl substituted compounds. Also, lighter hydrocarbons, such as ethylene and isobutene were produced. The reaction was conducted at different operating temperatures and different molar feed composition. The results showed that the conversion of both reactants increased with increasing the operating temperature; for example a conversion of 95.1% was achieved for acetylene at 350°C and 98.6% at 412°C. In addition, the conversion of both reactants decreased with increasing the molar feed ratio of methane to acetylene. A conversion of 96.4% for acetylene was achieved at a molar feed ratio of 6 to 1 (methane to acetylene) and 80.9% at a molar feed ration of 20 to 1 (methane to acetylene). The reaction of methane and ethane over HZSM-5 catalyst also led to the production of high molecular weight hydrocarbons, mainly aromatics, and some lighter products such as propane, and ethylene. Also methane by itself showed the ability to react over HZSM-5 to produce a small amount of aromatics, and ethylene.

Alkhawaldeh, Ammar

2000-01-01T23:59:59.000Z

320

A study in product-service systems strategies  

E-Print Network (OSTI)

What are examples of successful companies innovating in services to create Product- Service Systems that can command a price that exceeds the cost of capital and enhance, protect, or replace the core products? After a brief ...

Moran, Mark D

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Methane emissions from natural wetlands  

SciTech Connect

Analyses of air trapped in polar ice cores in conjunction with recent atmospheric measurements, indicate that the atmospheric methane concentration increased by about 250% during the past two or three hundred years (Rasmussen and Khalil, 1984). Because methane is a potent ``greenhouse`` gas, the increasing concentrations are expected to contribute to global warning (Dickinson and Cicerone, 1986). The timing of the methane increase suggests that it is related to the rapid growth of the human population and associated industrialization and agricultural development. The specific causes of the atmospheric methane concentration increase are not well known, but may relate to either increases in methane sources, decreases in the strengths of the sinks, or both.

Meyer, J.L. [Georgia Univ., Athens, GA (United States); Burke, R.A. Jr. [Environmental Protection Agency, Athens, GA (United States). Environmental Research Lab.

1993-09-01T23:59:59.000Z

322

Marine methane cycle simulations for the period of early global warming  

Science Conference Proceedings (OSTI)

Geochemical environments, fates, and effects are modeled for methane released into seawater by the decomposition of climate-sensitive clathrates. A contemporary global background cycle is first constructed, within the framework of the Parallel Ocean Program. Input from organics in the upper thermocline is related to oxygen levels, and microbial consumption is parameterized from available rate measurements. Seepage into bottom layers is then superimposed, representing typical seabed fluid flow. The resulting CH{sub 4} distribution is validated against surface saturation ratios, vertical sections, and slope plume studies. Injections of clathrate-derived methane are explored by distributing a small number of point sources around the Arctic continental shelf, where stocks are extensive and susceptible to instability during the first few decades of global warming. Isolated bottom cells are assigned dissolved gas fluxes from porous-media simulation. Given the present bulk removal pattern, methane does not penetrate far from emission sites. Accumulated effects, however, spread to the regional scale following the modeled current system. Both hypoxification and acidification are documented. Sensitivity studies illustrate a potential for material restrictions to broaden the perturbations, since methanotrophic consumers require nutrients and trace metals. When such factors are considered, methane buildup within the Arctic basin is enhanced. However, freshened polar surface waters act as a barrier to atmospheric transfer, diverting products into the deep return flow. Uncertainties in the logic and calculations are enumerated including those inherent in high-latitude clathrate abundance, buoyant effluent rise through the column, representation of the general circulation, and bacterial growth kinetics.

Elliott, S.; Maltrud, M.; Reagan, M.T.; Moridis, G.J.; Cameron-Smith, P.J.

2011-01-02T23:59:59.000Z

323

Predicting methane fermentation biodegradability  

Science Conference Proceedings (OSTI)

Estimation of the feedstock digestibility in cows by procedures developed by Van Soest was performed. By feeding cows feedstuff of different lignin content, cell wall digestibility can be estimated. In this article a digestibility model has been employed and tested along with other models for the rapid prediction of substrate methane fermentation biodegradability.

Chandler, J.A.; Jewell, W.J.; Gossett, J.M.; Van Soest, P.J.; Robertson, J.B.

1980-01-01T23:59:59.000Z

324

Hypothesis for increased atmospheric methane input from hydrocarbon seeps on exposed continental shelves during glacial low sea level  

E-Print Network (OSTI)

.- 2 Sept.1998 '" HYDROGEN PRODUCTION FROM COAL AND COAL BED METHANE, USING BYPRODUCT CO2 FOR ENHANCED METHANE RECOVERY AND SEQUESTERING THE CO2 IN mE COAL BED RH Williams, Center for Energy and Environmental that are poorly endowed with conventional hydrocarbon resources but coal- and coal-bed-methane-rich would

Luyendyk, Bruce

325

Biogas production from a systems analytical perspective.  

E-Print Network (OSTI)

??Anaerobic digestion and the production of biogas can provide an efficient means of meeting several objectives concerning energy, environmental and waste management policy. Interest in… (more)

Berglund, Maria

2006-01-01T23:59:59.000Z

326

Greenhouse gas emissions in biogas production systems  

E-Print Network (OSTI)

from soils amended with biogas waste compared to otherCrutzen et al. 2008). Biogas production from organicamounts of fermentation effluent (biogas waste) remain after

Dittert, Klaus; Senbayram, Mehmet; Wienforth, Babette; Kage, Henning; Muehling, Karl H

2009-01-01T23:59:59.000Z

327

Integratedenergy storage system for optimal energy production.  

E-Print Network (OSTI)

?? This project served to analyze the effects that energy storage can have on energy production.  The study was aimed at Johannes CHP bio fuel.… (more)

Stevens, Kristoffer

2013-01-01T23:59:59.000Z

328

NETL: Oil & Natural Gas Technologies Reference Shelf - Coalbed Methane  

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

Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Coalbed Methane Production and Reclamation Field Tour Author: John Wheaton, Montana Tech of the University of Montana, Butte, MT. Venue: The tour will be conducted starting in Gillette, WY, and extend along the northern Powder River Basin, on June 3, 2007, under the auspices of the American Society for Mining and Reclamation (http://ces.ca.uky.edu/asmr/ [external site]). Abstract: This field tour will emphasize successful reclamation in an alternative type of coal industry in the Powder River Basin: coalbed methane. The tour will leave Gillette, WY, at 7:30 a.m., Sunday, June 3, 2007, and travel to Sheridan, WY, and back, touring coalbed methane production areas. Stops will include active drilling and producing areas to learn about the footprint and approach to development of coalbed methane. Reclamation includes drilling pads and linear trenching for water and gas pipelines. Produced-water management is a major expense and concern. Among the water management options we plan to see are stock-watering facilities, infiltration ponds, irrigation sites, and water treatment facilities. A landowner will join us and be able to answer questions from the ranching perspective for part of the tour. Lunches are included in the price of the tour.

329

Methods and systems for chemoautotrophic production of organic compounds  

SciTech Connect

The present disclosure identifies pathways, mechanisms, systems and methods to confer chemoautotrophic production of carbon-based products of interest, such as sugars, alcohols, chemicals, amino acids, polymers, fatty acids and their derivatives, hydrocarbons, isoprenoids, and intermediates thereof, in organisms such that these organisms efficiently convert inorganic carbon to organic carbon-based products of interest using inorganic energy, such as formate, and in particular the use of organisms for the commercial production of various carbon-based products of interest.

Fischer, Curt R.; Che, Austin J.; Shetty, Reshma P.; Kelly, Jason R.

2013-01-08T23:59:59.000Z

330

Recruiting Suppliers for Reverse Production Systems: an MDP ...  

E-Print Network (OSTI)

Key words Recruiting, Reverse Production System, MDP Heuristics. 1. ...... It is very important to select an action wisely as this is the exploration part of the RL.

331

A New System at NERSC: Carver Goes into Production  

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

InfiniBand technology. The image above shows Carver from the front. A new system is in production at the Department of Energy's National Energy Research Scientific Computing...

332

BIOGAS PRODUCTION SYSTEM DESIGN FOR CONDOMINIUM AND ITS FEASIBILITY.  

E-Print Network (OSTI)

??The research is concerned with designing of Biogas Production System for Condominium and studying its Feasibility by crosschecking field survey and information from literatures. The… (more)

Bekele, Gaddisa

2011-01-01T23:59:59.000Z

333

Photoelectrochemical Water Systems for H2 Production (Presentation)  

DOE Green Energy (OSTI)

This Photoelectrochemical Water Systems for Hydrogen Production presentation by the National Renewable Energy Laboratory's John Turner was given at the DOE Hydrogen Program's 2007 Annual Merit Review.

Turner, J. A.; Deutsch, T.; Head, J.; Vallett, P.

2007-05-17T23:59:59.000Z

334

INTEGRATED ENERGY SYSTEMS: PRODUCTIVITY & BUILDING SCIENCE  

E-Print Network (OSTI)

of Large Commercial HVAC Systems Led by Erik Kolderup, Eley Associates, Inc. Advanced VAV System Design will modify their rating system for tubular daylighting devices; and 2) U-factor results will affect how NFRC) E3 10/03 Advanced VAV System Design Guideline (Eley) E4 5/03 Integrated Design of Small Commercial

335

Acetic Acid from the Carbonylation of Chloride Methane Over Rhodium Based Catalysts  

E-Print Network (OSTI)

on an indirect route via synthesis gas (syngas), i.e., methane is first con- verted to syngas before it is further transformed into other useful products [6]. However, the production of syngas from methane) 130:286­290 DOI 10.1007/s10562-009-0017-9 #12;[12], which is produced from syngas feedstock with Cu

Bao, Xinhe

336

Upgrading Methane Using Ultra-Fast Thermal Swing Adsorption  

Science Conference Proceedings (OSTI)

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 technical feasibility and cost of upgrading low-BTU methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys modular microchannel process technology. The objective of Phase II is to demonstrate the process at the bench-scale. Natural gas upgrading systems have six main unit operations: feed compressor, dehydration unit, nitrogen rejection unit, deoxygenator, carbon dioxide scrubber, and a sales compressor. The NRU is the focus of the development program, and a bench-scale demonstration has been initiated. The Velocys NRU system targets producing methane with greater than 96% purity and at least 90% recovery for final commercial operation. A preliminary cost analysis of the methane upgrading system, including the Velocys NRU, suggests that costs below $2.00 per million (MM) BTU methane may be achieved. The cost for a conventional methane upgrading system is well above $2.30 per MM BTU, as benchmarked in an Environmental Protection Agency study. The project is on schedule and on budget. Task 4, a bench-scale demonstration of the ultra-fast TSA system is complete. Rapid thermal swing of an adsorbent bed using microchannels has been successfully demonstrated and the separation of a 70% methane and 30% nitrogen was purified to 92% methane. The bench-scale demonstration unit was small relative to the system dead volume for the initial phase of experiments and a purge step was added to sweep the dead volume prior to desorbing the bed and measuring purity. A technical and economic feasibility assessment was completed in Task 3. The proposed Velocys technology appears feasible for the methane upgrading market. Evaluated categories include adsorbent selection, rapid-cycle valve selection, microchannel manufacturability assessment, and system design and cost. The selected adsorbent, granular microporous carbon from either Barnaby-Sutcliffe or Calgon, experimentally demonstrated sufficient methane capacity under differential temperature at 100 pounds per square inch gauge. Several valve options were identified, including candidates that can operate millions of cycles between refurbishment. The microchannel adsorber and desorber designs were made using internal Velocys manufacturability standards, and the associated costs are acceptable as included with the complete nitrogen rejection unit (NRU) cost projection. A system design and cost estimate was completed for the NRU section of the methane upgrading system. As integrated into the complete system, the cost is in line with the market requirement.

Anna Lee Tonkovich

2005-07-01T23:59:59.000Z

337

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

338

Methane Recovery from Animal Manures The Current Opportunities Casebook  

DOE Green Energy (OSTI)

Growth and concentration of the livestock industry create opportunities for the proper disposal of the large quantities of manures generated at dairy, swine, and poultry farms. Pollutants from unmanaged livestock wastes can degrade the environment, and methane emitted from decomposing manure may contribute to global climate change. One management system not only provides pollution prevention but also can convert a manure problem into a new profit center. Economic evaluations and case studies of operating systems indicate that the anaerobic digestion (AD) of livestock manures is a commercially available bioconversion technology with considerable potential for providing profitable coproducts, including a cost-effective renewable fuel for livestock production operations. This Casebook examines some of the current opportunities for the recovery of methane from the AD animal manures. U.S. livestock operations currently employ four types of anaerobic digester technology: slurry, plug-flow, complete-mix, and covered lagoon. An introduction to the engineering economies of these technologies is provided, and possible end-use applications for the methane gas generated by the digestion process are discussed. The economic evaluations are based on engineering studies of digesters that generate electricity from the recovered methane. Case studies of operating digesters, with project and maintenance histories and the operators ''lessons learned,'' are included as reality checks. Factors necessary for successful projects, as well as a list of reasons explaining why some AD projects fail, are provided. The role of farm management is key; not only must digesters be well engineered and built with high-quality components, they must also be sited at farms willing to incorporate the uncertainties of a new technology. More than two decades of research has provided much information about how manure can be converted to an energy source; however, the American farmer has not been motivated to adopt new practices. More cost-effective and easily managed manure management techniques are still needed to encourage farmers to use animal manure for conversion into energy and nutrients, especially for smaller farms. AD benefits farmers monetarily and mitigates possible manure pollution problems, thereby sustaining development while maintaining environmental quality. Moreover, rural economic development will benefit from the implicit multiplier effect resulting from jobs created by implementing digester systems. Promising future waste-to-profit activities may add to the economic performance of AD. New end-use applications, which provide added value to coproducts, are discussed.

Lusk, P.

1998-09-01T23:59:59.000Z

339

Integrated Operation of INL HYTEST System and High-Temperature Steam Electrolysis for Synthetic Natural Gas Production  

SciTech Connect

The primary feedstock for synthetic fuel production is syngas, a mixture of carbon monoxide and hydrogen. Current hydrogen production technologies rely upon fossil fuels and produce significant quantities of greenhouse gases as a byproduct. This is not a sustainable means of satisfying future hydrogen demands, given the current projections for conventional world oil production and future targets for carbon emissions. For the past six years, the Idaho National Laboratory has been investigating the use of high-temperature steam electrolysis (HTSE) to produce the hydrogen feedstock required for synthetic fuel production. High-temperature electrolysis water-splitting technology, combined with non-carbon-emitting energy sources, can provide a sustainable, environmentally-friendly means of large-scale hydrogen production. Additionally, laboratory facilities are being developed at the INL for testing hybrid energy systems composed of several tightly-coupled chemical processes (HYTEST program). The first such test involved the coupling of HTSE, CO2 separation membrane, reverse shift reaction, and methanation reaction to demonstrate synthetic natural gas production from a feedstock of water and either CO or a simulated flue gas containing CO2. This paper will introduce the initial HTSE and HYTEST testing facilities, overall coupling of the technologies, testing results, and future plans.

Carl Marcel Stoots; Lee Shunn; James O'Brien

2010-06-01T23:59:59.000Z

340

Formalizing production systems with rule-based ontologies  

Science Conference Proceedings (OSTI)

In this paper we proposed a new semantics for the combination of production systems with arbitraryDL ontologies. Unlike previous approaches, the semantics presented here allow looping rules and can handle inconsistencies produced by the ... Keywords: knowledge representation, ontologies, production systems, transaction logic, well-founded semantics

Martín Rezk; Michael Kifer

2012-03-01T23:59:59.000Z

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


341

Multi-Area Power System Reliability and Production Costing  

Science Conference Proceedings (OSTI)

Multi-area power system operation can reduce costs without jeopardizing service reliability, but the interconnection of systems requires new means for estimating costs and reliability. This report describes methods for evaluating production costs and power system reliability in multi-area power systems.

1990-08-28T23:59:59.000Z

342

Sequence Stratigraphy and Architecture of Lower Pennsylvanian Strata, Southern West Virginia: Potential for Carbon Sequestration and Enhanced Coal-Bed Methane Recovery in the Pocahontas Basin.  

E-Print Network (OSTI)

??Carbon dioxide sequestration in coal-bed methane fields has potential to add significant recoverable reserves and extend the production life of coal-bed methane fields while at… (more)

Rouse, William Allan

2009-01-01T23:59:59.000Z

343

Method of producing a methane rich gas mixture from mine gas  

SciTech Connect

A pressure-swing adsorption system is used to enrich the methane content of mine gas obtained from bores around mine shafts or galleries from the customary 25 to 45% by volume to a product gas quality of 50% by volume. Using a carbon molecular sieve adsorbent, the adsorption is carried out at 5 to 8 bar and is followed by a uniflow expansion to an intermediate pressure and a counterflow expansion to a flushing pressure of 1.1 to 2 bar. Counterflow flushing is carried out with waste gas and the product gas is a mixture of the gases obtained by counterflow expansion and flushing.

Richter, E.; Giessler, K.; Knoblauch, K.; Korbacher, W.

1985-06-04T23:59:59.000Z

344

Covered Product Category: Centrifugal Pumping System | Department of Energy  

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

Centrifugal Pumping System Centrifugal Pumping System Covered Product Category: Centrifugal Pumping System October 7, 2013 - 11:25am Addthis FEMP provides acquisition guidance across a variety of product categories, including centrifugal pumping systems. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Buying Energy-Efficient Centrifugal Pumping Systems The most common applications for pumps at Federal facilities are for fresh water supply, hydronic heating and cooling systems, wastewater treatment, and drainage. For these applications, the most common type of pump is the centrifugal pump. Proper pump selection should consider both constant and variable flow and

345

NETL: Methane Hydrates - Barrow Gas Fields - North Slope Borough, Alaska  

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

Phase 2- Drilling and Production Testing the Methane Hydrate Resource Potential associated with the Barrow Gas Fields Last Reviewed 04/06/2010 Phase 2- Drilling and Production Testing the Methane Hydrate Resource Potential associated with the Barrow Gas Fields Last Reviewed 04/06/2010 DE-FC26-06NT42962 Goal The goal of this project is to evaluate, design, drill, log, core and production test methane hydrate resources in the Barrow Gas Fields near Barrow, Alaska to determine its impact on future free gas production and its viability as an energy source. Photo of Barrow welcome sign Performers North Slope Borough, Barrow, Alaska 99723 Petrotechnical Resources Alaska (PRA), Fairbanks, AK 99775 University of Alaska Fairbanks, Fairbanks, AK 99775 Background Phase 1 of the Barrow Gas Fields Hydrate Study provided very strong evidence for the existence of hydrates updip of the East Barrow and Walakpa Gas Fields. Full-field history matched reservoir modeling supported the

346

Energy Department Expands Research into Methane Hydrates, a Vast, Untapped  

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

Expands Research into Methane Hydrates, a Vast, Expands Research into Methane Hydrates, a Vast, Untapped Potential Energy Resource of the U.S. Energy Department Expands Research into Methane Hydrates, a Vast, Untapped Potential Energy Resource of the U.S. November 20, 2013 - 12:08pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Today, U.S. Energy Secretary Ernest Moniz announced nearly $5 million in funding across seven research projects nationwide designed to increase our understanding of methane hydrates - a large, completely untapped natural gas resource-and what it could mean for the environment, as well as American economic competiveness and energy security. "The recent boom in natural gas production - in part due to long-term Energy Department investments beginning in the 70's and 80's - has had

347

NETL: News Release - DOE Study Raises Estimates of Coalbed Methane  

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

December 16, 2002 December 16, 2002 DOE Study Raises Estimates of Coalbed Methane Potential in Powder River Basin Actual Production Will Hinge on Water Disposal Method WASHINGTON, DC - The Powder River Basin, a vast region of high plains in Wyoming and Montana known for producing low-sulfur coal, is also becoming a primary source of America's fastest growing natural gas resource, coalbed methane. Now, a new Department of Energy report projects that the region may hold more coalbed methane than previously estimated but the amount that will actually be produced will depend largely on the choice of the water disposal method. MORE INFO Download report [7.35MB PDF] The study, Powder River Basin Coalbed Methane Development and Produced Water Management Study, was prepared by Advanced Resources International of

348

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

349

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

350

NETL: Methane Hydrates - Interagency Coordination  

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

Links to interagency pdf. The multi-faceted issues associated with naturally occurring methane hydrates demand a coordinated approach to studying (1) the potential of this resource...

351

Performance comparison between partial oxidation and methane steam reforming processes for solid oxide fuel cell (SOFC) micro combined heat and  

E-Print Network (OSTI)

Performance comparison between partial oxidation and methane steam reforming processes for solid recirculation are used along with steam methane reforming. Further Steam Methane Reforming process produces Cell fueled by natural gas with two different types of pre-reforming systems, namely Steam Reforming

Liso, Vincenzo

352

Importance of systems biology in engineering microbes for biofuel production  

SciTech Connect

Microorganisms have been rich sources for natural products, some of which have found use as fuels, commodity chemicals, specialty chemicals, polymers, and drugs, to name a few. The recent interest in production of transportation fuels from renewable resources has catalyzed numerous research endeavors that focus on developing microbial systems for production of such natural products. Eliminating bottlenecks in microbial metabolic pathways and alleviating the stresses due to production of these chemicals are crucial in the generation of robust and efficient production hosts. The use of systems-level studies makes it possible to comprehensively understand the impact of pathway engineering within the context of the entire host metabolism, to diagnose stresses due to product synthesis, and provides the rationale to cost-effectively engineer optimal industrial microorganisms.

Mukhopadhyay, Aindrila; Redding, Alyssa M.; Rutherford, Becky J.; Keasling, Jay D.

2009-12-02T23:59:59.000Z

353

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

354

Development of computer simulations for landfill methane recovery  

DOE Green Energy (OSTI)

Two- and three-dimensional finite-difference computer programs simulating methane recovery systems in landfills have been developed. These computer programs model multicomponent combined pressure and diffusional flow in porous media. Each program and the processes it models are described in this report. Examples of the capabilities of each program are also presented. The two-dimensional program was used to simulate methane recovery systems in a cylindrically shaped landfill. The effects of various pump locations, geometries, and extraction rates were determined. The three-dimensional program was used to model the Puente Hills landfill, a field test site in southern California. The biochemical and microbiological details of methane generation in landfills are also given. Effects of environmental factors, such as moisture, oxygen, temperature, and nutrients on methane generation are discussed and an analytical representation of the gas generation rate is developed.

Massmann, J.W.; Moore, C.A.; Sykes, R.M.

1981-12-01T23:59:59.000Z

355

System for analyzing coal liquefaction products  

SciTech Connect

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams.

Dinsmore, Stanley R. (Norris, TN); Mrochek, John E. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

356

System for analyzing coal-liquefaction products  

DOE Patents (OSTI)

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams. 4 figures.

Dinsmore, S.R.; Mrochek, J.E.

1982-10-29T23:59:59.000Z

357

Direct catalytic conversion of methane and light hydrocarbon gases. Quarterly report No. 3, April 16--July 15, 1987  

DOE Green Energy (OSTI)

The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that can, as economics dictate, be subsequently converted either to liquid fuels or value-added chemicals. In this program we are exploring two approaches to developing such catalysts. The first approach consists of developing advanced catalysts for reforming methane. We will prepare the catalysts by reacting organometallic complexes of transition metals (Fe, Ru, Rh, and Re) with zeolitic and rare-earth-exchanged zeolitic supports to produce surface-confined metal complexes in the zeolite pores. Our second approach entails synthesizing the porphyrin and phthalocyanine complexes of Cr, Mn, Ru, Fe, and/or Co within the pores of zeolitic supports for use as selective oxidation catalysts for methane and light hydrocarbons. During this reporting period, we concentrated on synthesizing and testing methane oxidation catalysts using the automated GC sampling system. We modified our preparation method of zeolite-encapsulated phthalocyanines (PC). The catalysts have higher complex loading, and the uncomplexed metal ions were back-exchanged by sodium ions (to remove any uncomplexed metal ions). Four metal ions were used: cobalt, iron, ruthenium, and manganese. We also synthesized four zeolite-encapsulated tetraphenylporphyrin (TPP) complexes using the same metals. These catalysts were tested for methane oxidation in the temperature range from 300{degrees} to 500{degrees}C at 50 psig pressure. The RUPC, COTPP, and MNTPP showed activity toward the formation of methanol. The RUPC zeolite gave the best methanol yield. The methane conversion was 4.8%, and the selectivity to methanol is 11.3% at 375{degrees}C. Again, the major products are carbon dioxide and water in every catalyst we tested during this reporting period.

Wilson, R.B. Jr.; Chan, Yee Wai

1987-08-28T23:59:59.000Z

358

Regulation of methane genes and genome expression  

DOE Green Energy (OSTI)

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

359

Method for redesign of microbial production systems  

DOE Patents (OSTI)

A computer-assisted method for identifying functionalities to add to an organism-specific metabolic network to enable a desired biotransformation in a host includes accessing reactions from a universal database to provide stoichiometric balance, identifying at least one stoichiometrically balanced pathway at least partially based on the reactions and a substrate to minimize a number of non-native functionalities in the production host, and incorporating the at least one stoichiometrically balanced pathway into the host to provide the desired biotransformation. A representation of the metabolic network as modified can be stored.

Maranas, Costas D. (Port Matilda, PA); Burgard, Anthony P. (State College, PA); Pharkya, Priti (State College, PA)

2010-11-02T23:59:59.000Z

360

Method for redesign of microbial production systems  

Science Conference Proceedings (OSTI)

A computer-assisted method for identifying functionalities to add to an organism-specific metabolic network to enable a desired biotransformation in a host includes accessing reactions from a universal database to provide stoichiometric balance, identifying at least one stoichiometrically balanced pathway at least partially based on the reactions and a substrate to minimize a number of non-native functionalities in the production host, and incorporating the at least one stoichiometrically balanced pathway into the host to provide the desired biotransformation. A representation of the metabolic network as modified can be stored.

Maranas, Costas D. (State College, PA); Burgard, Anthony P. (San Diego, CA); Pharkya, Priti (San Diego, CA)

2012-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

New Materials Make Methane Capture Possible  

Science Conference Proceedings (OSTI)

May 8, 2013... SBN, captured enough medium source methane to turn it to high purity methane, which in turn could be used to generate efficient electricity.

362

NETL: Methane Hydrates - DOE/NETL Projects  

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

with sampling and observation from the surface ship. Activities included collection of methane hydrate, sediment, water, and other materials from methane hydrate and seep sites...

363

NIST: Methane Symmetry Operations - Td Symmetry Species  

Science Conference Proceedings (OSTI)

Table of Contents Methane Symmetry Operations. 11. ... Magnetic-dipole transitions are observed in molecular-beam studies of methane [42]. ...

364

MethaneHydrateRD_FC.indd  

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

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...

365

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

366

NETL: Methane Hydrates - DOE/NETL Projects  

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

– Formation and Dissociation of Methane Hydrates Last Reviewed 07/7/2011 – 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 – NETL Office of Research & Development Jeong Choi – Oak Ridge Institute for Science and Education Jongho Cha-Virginia Polytech Institute Project Location National Energy Technology Laboratory - Morgantown, West Virginia

367

Characteristics of backup workloads in production systems  

Science Conference Proceedings (OSTI)

Data-protection class workloads, including backup and long-term retention of data, have seen a strong industry shift from tape-based platforms to disk-based systems. But the latter are traditionally designed to serve as primary storage and there has ...

Grant Wallace; Fred Douglis; Hangwei Qian; Philip Shilane; Stephen Smaldone; Mark Chamness; Windsor Hsu

2012-02-01T23:59:59.000Z

368

Leveling Intermittent Renewable Energy Production Through Biomass Gasification-Based Hybrid Systems  

SciTech Connect

The increased use of intermittent renewable power in the United States is forcing utilities to manage increasingly complex supply and demand interactions. This paper evaluates biomass pathways for hydrogen production and how they can be integrated with renewable resources to improve the efficiency, reliability, dispatchability, and cost of other renewable technologies. Two hybrid concepts were analyzed that involve co-production of gaseous hydrogen and electric power from thermochemical biorefineries. Both of the concepts analyzed share the basic idea of combining intermittent wind-generated electricity with a biomass gasification plant. The systems were studied in detail for process feasibility and economic performance. The best performing system was estimated to produce hydrogen at a cost of $1.67/kg. The proposed hybrid systems seek to either fill energy shortfalls by supplying hydrogen to a peaking natural gas turbine or to absorb excess renewable power during low-demand hours. Direct leveling of intermittent renewable electricity production is accomplished with either an indirectly heated biomass gasifier, or a directly heated biomass gasifier. The indirect gasification concepts studied were found to be cost competitive in cases where value is placed on controlling carbon emissions. A carbon tax in the range of $26-40 per metric ton of CO{sub 2} equivalent (CO{sub 2}e) emission makes the systems studied cost competitive with steam methane reforming (SMR) to produce hydrogen. However, some additional value must be placed on energy peaking or sinking for these plants to be economically viable. The direct gasification concept studied replaces the air separation unit (ASU) with an electrolyzer bank and is unlikely to be cost competitive in the near future. High electrolyzer costs and wind power requirements make the hybridization difficult to justify economically without downsizing the system. Based on a direct replacement of the ASU with electrolyzers, hydrogen can be produced for $0.27 premium per kilogram. Additionally, if a non-renewable, grid-mix electricity is used, the hybrid system is found to be a net CO{sub 2}e emitter.

Dean, J.; Braun, R.; Penev, M.; Kinchin, C.; Munoz, D.

2010-01-01T23:59:59.000Z

369

A New System at NERSC: Carver Goes into Production  

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

New Carver System New Carver System Goes into Production A New System at NERSC: Carver Goes into Production May 28, 2010 carverracks.jpg Built on IBM iDataPlex technology, Carver is comprised of 400 compute nodes interconnected by the latest 4X QDR InfiniBand technology. The image above shows Carver from the front. A new system is in production at the Department of Energy's National Energy Research Scientific Computing Center (NERSC). Built on IBM iDataPlex technology, the new system is called "Carver" in honor of American scientist and inventor George Washington Carver. Carver replaces NERSC's Opteron "Jacquard" cluster and IBM Power5 "Bassi" system, which were both decommissioned at the end of April. NERSC is a world leader in providing high-performance computing resources for science,

370

Hybrid Cooling Systems for Low-Temperature Geothermal Power Production  

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

LLC. Contract No. DE-AC36-08GO28308 Hybrid Cooling Systems for Low-Temperature Geothermal Power Production Andrea Ashwood and Desikan Bharathan Technical Report NREL...

371

Production system improvement : floor area reduction and cycle time analysis  

E-Print Network (OSTI)

A medical device company challenged a research team to reduce the manufacturing floor space required for an occlusion system product by one third. The team first cataloged equipment location and size, detailed the processes ...

Peterson, Jennifer J. (Jennifer Jeanne)

2012-01-01T23:59:59.000Z

372

A system-wide productivity figure of merit  

Science Conference Proceedings (OSTI)

The goal of this note is to combine productivity and performance benchmark measurement and subjective evaluations into a single system-wide figure of merit that could, for example, be used for budget justifications and procurements. With simplifying ...

Declan Murphy; Thomas Nash; Lawrence Votta

2006-01-01T23:59:59.000Z

373

Steady-state and transient catalytic oxidation and coupling of methane  

DOE Green Energy (OSTI)

This project addresses the conversion of methane from natural gas into ethane, ethylene and higher hydrocarbons. Our research explores the mechanistic and practical implications of carrying out the methane oxidative coupling reaction in reactor designs other than conventional packed-beds with co-fed reactants. These alternate reactor designs are needed to prevent the full oxidation of methane, which limits C{sub 2}, yields in methane oxidative coupling reactions. The research strategy focuses on preventing contact between the 0{sub 2} reactant required for favorable overall thermodynamics and the C{sub 2+} products of methane coupling. The behavior of various reactor designs are simulated using detailed kinetic transport models. These simulations have suggested that the best way to prevent high C0{sub 2} yields is to separate the oxygen and hydrocarbon streams altogether. As a result, the project has focused on the experimental demonstration of proton transport membrane reactors for the selective conversion of methane into higher hydrocarbons.

Iglesia, E.; Perry, D.L.; Heinemann, H.

1995-06-01T23:59:59.000Z

374

Investigations into methane accumulation in coal storage silos  

SciTech Connect

The ventilation systems of coal storage silos are normally capable of rapidly dispersing any accumulations of methane in the atmosphere above the coal pile surface. However, the results of an investigation which is presented in this report show that hazardous concentrations of methane can accumulate within the coal pile. Methane trapped within the coal pile is released into the atmosphere of the loading gallery when coal is discharged from a silo. If the methane released is of a flammable concentration it is necessary to ventilate the gallery to reduce the risk of an ignition. This report proposes a simple test, which, after further investigations may prove to be an effective method to calculate gallery ventilation requirements.

Kolada, R.J.

1985-01-01T23:59:59.000Z

375

Investigations on catalyzed steam gasification of biomass. Appendix A. Feasibility study of methane production via catalytic gasification of 2000 tons of wood per day  

DOE Green Energy (OSTI)

A study has been made of the economic feasibility of producing substitute natural gas (SNG) from wood via catalytic gasification with steam. The plant design in this study was developed from information on gasifier operation supplied by the Pacific Northwest Laboratory (PNL). The plant is designed to process 2000 tons per day of dry wood to SNG. Plant production is 21.6 MM scfd of SNG with a HHV of 956 Btu per scf. All process and support facilities necessary to convert wood to SNG are included. The plant location is Newport, Oregon. The capital cost for the plant is $95,115,000 - September, 1980 basis. Gas production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. For utility financing, the gas production costs are respectively $5.09, $5.56, $6.50, and $8.34 per MM Btu for wood costs of $5, $10, $20, and $40 per dry ton delivered to the plant at a moisture content of 49.50 wt %. For private investor financing, the corresponding product costs are $6.62, $7.11, $8.10, and $10.06 per MM Btu. The cost calculated by the utility financing method includes a return on equity of 15% and an interest rate of 10% on the debt. The private investor financing method, which is 100% equity financing, incorporates a discounted cash flow (DCF) return on equity of 12%. The thermal efficiency without taking an energy credit for by-product char is 58.3%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

376

Measuring impact of CONWIP control on production rate and inventory distribution for a flexible production system through simulation  

E-Print Network (OSTI)

This research investigates the production output and inventory distribution of a manufacturing system that produces multiple part types on flexible machines while incorporating CONWIP inventory controls. The production ...

Lampe, Erik Joseph

2007-01-01T23:59:59.000Z

377

Interim report Assessment of Baseline and Advanced Hydrogen Production Plants Case 1-1 Baseline Steam Methane Reforming (SMR) Hydrogen Plant With CO2 Capture  

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

CO CO 2 CAPTURE READY COAL POWER PLANTS DOE/NETL-2007/1301 Final Report April 2008 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States

378

Investigations on catalyzed steam gasification of biomass: feasibility study of methane production via catalytic gasification of 200 tons of wood per day  

DOE Green Energy (OSTI)

This report is a result of an additional study made of the economic feasibility of producing substitute natural gas (SNG) from wood via catalytic gasification with steam. The report has as its basis the original 2000 tons of wood per day study generated from process development unit testing performed by the Pacific Northwest Laboratory. The goal of this additional work was to determine the feasibility of a smaller scale plant one-tenth the size of the original or 200 tons of dry wood feed per day. Plant production based on this wood feed is 2.16 MM Scfd of SNG with a HHV of 956 Btu per Scf. All process and support facilities necessary to convert wood to SNG are included in this study. The plant location is Newport, Oregon. The capital cost for the plant is $26,680,000 - September 1980 basis. Gas production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. These wood prices represent the cost of unchipped wood delivered to the plant site. For utility financing, the gas production costs are, respectively, $14.34, $14.83, $15.86, and $17.84 per MM Btu for wood costs of $5, $10, $20, and $40 per dry ton. For private investor financing, the corresponding product costs are $18.76, $19.26, $20.28, and $22.31 per MM Btu for the corresponding wood costs. The costs calculated by the utility financing method includes a return on equity of 15% and an interest rate of 10% on the debt. The private investor financing method, which is 100% equity financing, incorporates a discounted cash flow (DCF) return on equity of 12%. The thermal efficiency without taking an energy credit for char is 57.4%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

379

Methanation of gas streams containing carbon monoxide and hydrogen  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams having a relatively high concentration of hydrogen are pretreated so as to remove the hydrogen in a recoverable form for use in the second step of a cyclic, essentially two-step process for the production of methane. The thus-treated streams are then passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. This active carbon is reacted with said hydrogen removed from the feed gas stream to form methane. The utilization of the CO in the feed gas stream is appreciably increased, enhancing the overall process for the production of relatively pure, low-cost methane from CO-containing waste gas streams.

Frost, Albert C. (Congers, NY)

1983-01-01T23:59:59.000Z

380

Enhanced Schwinger's pair production in many-center systems  

E-Print Network (OSTI)

Electron-positron pair production is considered for many-center systems with multiple bare nuclei immersed in a constant electric field. It is shown that there are two distinct regimes where the pair production rate is enhanced. At small interatomic distance, the effective charge of the nuclei approaches the critical charge where the ground state dives into the negative continuum. This facilitates the transition from the negative to the positive energy states, which in turns, increases the pair production rate. At larger atomic distance, the enhancement is due to the crossing of resonances and the pair production proceeds by the Resonantly Enhanced Pair Production (REPP) mechanism. These processes are studied within a simple one-dimensional model. A numerical method is developed to evaluate the transmission coefficient in relativistic quantum mechanics, which is required in the calculation of the pair production rate. The latter is evaluated for systems with many (up to five) nuclei. It is shown that the production rate for many-center systems can reach a few orders of magnitude above Schwinger's tunnelling result in a static field.

François Fillion-Gourdeau; Emmanuel Lorin; André D. Bandrauk

2013-05-24T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Upgrading Methane Using Ultra-Fast Thermal Swing Adsorption  

Science Conference Proceedings (OSTI)

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 technical feasibility and cost of upgrading low-BTU methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys modular microchannel process technology. The objective of Phase II is to demonstrate the process at the bench scale. The project is on schedule and on budget. A technical and economic feasibility assessment was completed in Task 3. The proposed Velocys technology appears feasible for the methane upgrading market. Evaluated categories include adsorbent selection, rapid-cycle valve selection, microchannel manufacturability assessment, and system design and cost. The selected adsorbent, granular microporous carbon from either Barnaby-Sutcliffe or Calgon, experimentally demonstrated sufficient methane capacity under differential temperature at 100 pounds per square inch gauge. Several valve options were identified, including candidates that can operate millions of cycles between refurbishment. The microchannel adsorber and desorber designs were made using internal Velocys manufacturability standards, and the associated costs are acceptable as included with the complete nitrogen rejection unit (NRU) cost projection. A system design and cost estimate was completed for the NRU section of the methane upgrading system. As integrated into the complete system, the cost is in line with the market requirement. The system has six main unit operations: feed compressor, dehydration unit, nitrogen rejection unit, deoxygenator, carbon dioxide scrubber, and a sales compressor. The NRU is the focus of the development program, and a bench-scale demonstration will be initiated in the next fiscal year. The Velocys NRU system targets producing methane with greater than 96% purity and at least 90% recovery for final commercial operation. A preliminary cost analysis of the methane upgrading system, including the Velocys NRU, suggests that costs below $2.00 per million (MM) BTU methane may be achieved. The cost for a conventional methane upgrading system is well above $2.30 per MM BTU, as benchmarked in an Environmental Protection Agency study.

Anna Lee Tonkovich

2004-07-01T23:59:59.000Z

382

Comparison of models for predicting landfill methane recovery. Final report  

DOE Green Energy (OSTI)

Landfill methane models are tools used to project methane generation over time from a mass of landfilled waste. These models are used for sizing landfill gas (LFG) collection systems, evaluations and projections of LFG energy uses, and regulatory purposes. The objective of this project was to select various landfill methane models and to provide a comparison of model outputs to actual long-term gas recovery data from a number of well managed and suitable landfills. Another objective was to use these data to develop better estimates of confidence limits that can be assigned to model projections. This project assessed trial model forms against field data from available landfills where methane extraction was maximized, waste filling history was well-documented, and other pertinent site information was of superior quality. Data were obtained from 18 US landfills. Four landfill methane models were compared: a zero-order, a simple first order, a modified first order, and a multi-phase first order model. Models were adjusted for best fit to field data to yield parameter combinations based on the minimized residual errors between predicted and experienced methane recovery. The models were optimized in this way using two data treatments: absolute value of the differences (arithmetic error minimization) and absolute value of the natural log of the ratios (logarithmic error minimization).

Vogt, W.G. [SCS Engineers, Reston, VA (United States); Augenstein, D. [Institute for Environmental Management, Palo Alto, CA (United States)

1997-03-01T23:59:59.000Z

383

Atmospheric Methane at Cape Meares, Oregon, U.S.A.: A High-Resolution Data  

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

Atmospheric Trace Gases » Methane » Atmospheric Trace Gases » Methane » Atmospheric Methane, Cape Meares Atmospheric Methane at Cape Meares, Oregon, U.S.A.: A High-Resolution Data Base for the Period 1979-1992 DOI: 10.3334/CDIAC/atg.db1007 data Data (DB1007) Investigators M. A. K. Khalil and R. A. Rasmussen Description This data base presents continuous automated atmospheric methane (CH4) measurements taken at the atmospheric monitoring facility in Cape Meares, Oregon, by the Oregon Graduate Institute of Science and Technology. The Cape Meares data represent some 119,000 individual atmospheric methane measurements carried out during 1979-1992. Analysis of ambient air (collected 12 to 72 times daily) was carried out by means of an automated sampling and measurement system, using the method of gas chromatography and

384

Selective methane oxidation over promoted oxide catalysts. Topical report, September 8, 1992--September 7, 1996  

DOE Green Energy (OSTI)

The objective of this research was to selectively oxidize methane to C{sub 2} hydrocarbons and to oxygenates, in particular formaldehyde and methanol, in high space time yields using air at the oxidant under milder reaction conditions that heretofore employed over industrially practical oxide catalysts. The research carried out under this US DOE-METC contract was divided into the following three tasks: Task 1, maximizing selective methane oxidation to C{sub 2}{sup +} products over promoted SrO/La{sub 2}O{sub 3} catalysts; Task 2, selective methane oxidation to oxygenates; and Task 3, catalyst characterization and optimization. Principal accomplishments include the following: the 1 wt% SO{sub 4}{sup 2{minus}}/SrO/La{sub 2}O{sub 3} promoted catalyst developed here produced over 2 kg of C{sub 2} hydrocarbons/kg catalyst/hr at 550 C; V{sub 2}O{sub 5}/SiO{sub 2} catalysts have been prepared that produce up to 1.5 kg formaldehyde/kg catalyst/hr at 630 C with low CO{sub 2} selectivities; and a novel dual bed catalyst system has been designed and utilized to produce over 100 g methanol/kg catalyst/hr at 600 C with the presence of steam in the reactant mixture.

Klier, K.; Herman, R.G.

1996-12-31T23:59:59.000Z

385

An Integrative Modeling Framework to Evaluate the Productivity and Sustainability of Biofuel Crop Production Systems  

Science Conference Proceedings (OSTI)

The potential expansion of biofuel production raises food, energy, and environmental challenges that require careful assessment of the impact of biofuel production on greenhouse gas (GHG) emissions, soil erosion, nutrient loading, and water quality. In this study, we describe a spatially-explicit integrative modeling framework (SEIMF) to understand and quantify the environmental impacts of different biomass cropping systems. This SEIMF consists of three major components: 1) a geographic information system (GIS)-based data analysis system to define spatial modeling units with resolution of 56 m to address spatial variability, 2) the biophysical and biogeochemical model EPIC (Environmental Policy Integrated Climate) applied in a spatially-explicit way to predict biomass yield, GHG emissions, and other environmental impacts of different biofuel crops production systems, and 3) an evolutionary multi-objective optimization algorithm for exploring the trade-offs between biofuel energy production and unintended ecosystem-service responses. Simple examples illustrate the major functions of the SEIMF when applied to a 9-county Regional Intensive Modeling Area (RIMA) in SW Michigan to 1) simulate biofuel crop production, 2) compare impacts of management practices and local ecosystem settings, and 3) optimize the spatial configuration of different biofuel production systems by balancing energy production and other ecosystem-service variables. Potential applications of the SEIMF to support life cycle analysis and provide information on biodiversity evaluation and marginal-land identification are also discussed. The SEIMF developed in this study is expected to provide a useful tool for scientists and decision makers to understand sustainability issues associated with the production of biofuels at local, regional, and national scales.

Zhang, Xuesong; Izaurralde, Roberto C.; Manowitz, David H.; West, T. O.; Post, W. M.; Thomson, Allison M.; Bandaru, V. P.; Nichols, J.; Williams, J.R.

2010-09-08T23:59:59.000Z

386

An integrative modeling framework to evaluate the productivity and sustainability of biofuel crop production systems  

Science Conference Proceedings (OSTI)

The potential expansion of biofuel production raises food, energy, and environmental challenges that require careful assessment of the impact of biofuel production on greenhouse gas (GHG) emissions, soil erosion, nutrient loading, and water quality. In this study, we describe a spatially explicit integrative modeling framework (SEIMF) to understand and quantify the environmental impacts of different biomass cropping systems. This SEIMF consists of three major components: (1) a geographic information system (GIS)-based data analysis system to define spatial modeling units with resolution of 56 m to address spatial variability, (2) the biophysical and biogeochemical model Environmental Policy Integrated Climate (EPIC) applied in a spatially-explicit way to predict biomass yield, GHG emissions, and other environmental impacts of different biofuel crops production systems, and (3) an evolutionary multiobjective optimization algorithm for exploring the trade-offs between biofuel energy production and unintended ecosystem-service responses. Simple examples illustrate the major functions of the SEIMF when applied to a nine-county Regional Intensive Modeling Area (RIMA) in SW Michigan to (1) simulate biofuel crop production, (2) compare impacts of management practices and local ecosystem settings, and (3) optimize the spatial configuration of different biofuel production systems by balancing energy production and other ecosystem-service variables. Potential applications of the SEIMF to support life cycle analysis and provide information on biodiversity evaluation and marginal-land identification are also discussed. The SEIMF developed in this study is expected to provide a useful tool for scientists and decision makers to understand sustainability issues associated with the production of biofuels at local, regional, and national scales.

Zhang, X [University of Maryland; Izaurralde, R. C. [University of Maryland; Manowitz, D. [University of Maryland; West, T. O. [University of Maryland; Thomson, A. M. [University of Maryland; Post, Wilfred M [ORNL; Bandaru, Vara Prasad [ORNL; Nichols, Jeff [ORNL; Williams, J. [AgriLIFE, Temple, TX

2010-10-01T23:59:59.000Z

387

Innovative production system goes in off Ivory Coast  

Science Conference Proceedings (OSTI)

The phased field development of the Lion and Panthere fields, offshore the Ivory Coast, includes a small floating production, storage, and offloading (FPSO) tanker with minimal processing capability as an early oil production system (EPS). For the long-term production scheme, the FPSO will be replaced by a converted jack up mobile offshore production system (MOPS) with full process equipment. The development also includes guyed-caisson well platforms, pipeline export for natural gas to fuel an onshore power plant, and a floating storage and offloading (FSO) tanker for oil export. Pipeline export for oil is a future possibility. This array of innovative strategies and techniques seldom has been brought together in a single project. The paper describes the development plan, early oil, jack up MOPS, and transport and installation.

Childers, M. [Oceaneering Production Systems, Houston, TX (United States); Barnes, J. [Paragon Engineering Services Inc., Houston, TX (United States)]|[UMC Petroleum Corp., Houston, TX (United States)

1995-07-17T23:59:59.000Z

388

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

389

Research, development, and demonstration of algal production raceway (APR) systems for the production of hydrocarbon resources  

DOE Green Energy (OSTI)

A fractional factorial experimental design was used to determine the maximum production and photosynthetic efficiency that could be achieved in shallow algal mass culture systems (SAMCS) of the marine diatom Phaeodactylum tricornutum. Dilution rate and CO/sub 2/ supply were found to be the most important system parameters. Maximum production was found to be about 25 g dry wt m/sup -2/d/sup -1/. This production corresponded to a photosynthetic efficiency of 5.6%. These figures are 50 to 100% better than the production rates achieved in earlier P. tricornutum cultures using conventional culture techniques. The results are consistent with a theoretical model of the impact of the flashing light effect on algal mass culture production. This model predicts that at the typical irradiances in Hawaii, full utilization of the flashing light effect should enhance production by 70% to over 200%. It was concluded that the use of foil arrays in the experimental flume creates systematic vertical mixing on a time scale suitable for utilizing the flashing light effect. Production of P. tricornutum culture is probably limited by temperature. P. tricornutum cannot survive at temperatures in excess of 25/sup 0/C in outdoor mass cultures. Growth of mesophilic species in the temperature range 30 to 35/sup 0/C may well result in even higher production than that achieved with P. tricornutum.

Laws, E.A.

1984-02-01T23:59:59.000Z

390

Methane Hydrate Advisory Committee Meeting Minutes, June 6th...  

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

Methane Hydrate Advisory Committee Meeting Minutes, June 6th-7th, 2013 Methane Hydrate Advisory Committee Meeting Minutes, June 6th-7th, 2013 Methane Hydrate Advisory Committee...

391

Methane Hydrate Research and Development Act of 2000 | Department...  

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

Research and Development Act of 2000 Methane Hydrate Research and Development Act of 2000 Methane Hydrate Research and Development Act of 2000 Methane Hydrate Research and...

392

Methane Hydrate Advisory Committee Meeting Minutes, January 2010...  

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

January 2010 Methane Hydrate Advisory Committee Meeting Minutes, January 2010 Methane Hydrate Advisory Committee Meeting Minutes January, 2010 Atlanta, GA Methane Hydrate Advisory...

393

Department of Energy Advance Methane Hydrates Science and Technology...  

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

Advance Methane Hydrates Science and Technology Projects Department of Energy Advance Methane Hydrates Science and Technology Projects Descriptions for Energy Department Methane...

394

Methane Hydrate Advisory Committee Meeting Minutes, March 2010...  

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

March 2010 Methane Hydrate Advisory Committee Meeting Minutes, March 2010 Methane Hydrate Advisory Committee Meeting Minutes March 2010 Washington, DC Methane Hydrate Advisory...

395

Methods and systems for the production of hydrogen  

DOE Patents (OSTI)

Methods and systems are disclosed for the production of hydrogen and the use of high-temperature heat sources in energy conversion. In one embodiment, a primary loop may include a nuclear reactor utilizing a molten salt or helium as a coolant. The nuclear reactor may provide heat energy to a power generation loop for production of electrical energy. For example, a supercritical carbon dioxide fluid may be heated by the nuclear reactor via the molten salt and then expanded in a turbine to drive a generator. An intermediate heat exchange loop may also be thermally coupled with the primary loop and provide heat energy to one or more hydrogen production facilities. A portion of the hydrogen produced by the hydrogen production facility may be diverted to a combustor to elevate the temperature of water being split into hydrogen and oxygen by the hydrogen production facility.

Oh, Chang H. (Idaho Falls, ID); Kim, Eung S. (Ammon, ID); Sherman, Steven R. (Augusta, GA)

2012-03-13T23:59:59.000Z

396

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

397

Shale oil production system reference case study. Final report  

DOE Green Energy (OSTI)

Material balances, utility balances, and overall processing schemes were developed for two reference shale oil production systems. For both cases, crushed and sized oil shale is fed into a mix of surface retorts specified for this study, which handle both coarse and fine ore. Case 1A produces an upgraded crude product suitable for refinery feedstock, and Case 1B produces a crude shale oil. The reference system uses room-and-pillar mining, three different types of retorts not unlike those proposed for the White River Shale Project on Federal Lease Tracts U-a and U-b, a straightforward upgrading of the raw shale oil to a refinery feedstock syncrude, and pipeline transportation of that product. In addition to the production of an upgraded product, there is also a modified system for producing raw shale oil that is minimally upgraded for pipeline transportation purposes. The capital cost estimate for the two reference cases has 26 cost elements, excluding, for example, any land or finance costs. A more complete list of excluded cost elements is provided in Section VII. The two distinct cases, production of raw and upgraded shale oil, were included to avoid foreclosing the issue of on- or off-site upgrading. The difference in estimated capital cost ($795M vs. $875M) amounts to about 10 percent.

Not Available

1979-06-01T23:59:59.000Z

398

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.

399

Production process for advanced space satellite system cables/interconnects.  

SciTech Connect

This production process was generated for the satellite system program cables/interconnects group, which in essences had no well defined production process. The driver for the development of a formalized process was based on the set backs, problem areas, challenges, and need improvements faced from within the program at Sandia National Laboratories. In addition, the formal production process was developed from the Master's program of Engineering Management for New Mexico Institute of Mining and Technology in Socorro New Mexico and submitted as a thesis to meet the institute's graduating requirements.

Mendoza, Luis A.

2007-12-01T23:59:59.000Z

400

Methanation process utilizing split cold gas recycle  

DOE Patents (OSTI)

In the methanation of feed gas comprising carbon monoxide and hydrogen in multiple stages, the feed gas, cold recycle gas and hot product gas is mixed in such proportions that the mixture is at a temperature sufficiently high to avoid carbonyl formation and to initiate the reaction and, so that upon complete reaction of the carbon monoxide and hydrogen, an excessive adiabatic temperature will not be reached. Catalyst damage by high or low temperatures is thereby avoided with a process that utilizes extraordinarily low recycle ratios and a minimum of investment in operating costs.

Tajbl, Daniel G. (Evanston, IL); Lee, Bernard S. (Lincolnwood, IL); Schora, Jr., Frank C. (Palatine, IL); Lam, Henry W. (Rye, NY)

1976-07-06T23:59:59.000Z

Note: This page contains sample records for the topic "methane production system" 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

Modeling pure methane hydrate dissociation using a numerical simulator from a novel combination of X-ray computed tomography and macroscopic data  

SciTech Connect

The numerical simulator TOUGH+HYDRATE (T+H) was used to predict the transient pure methane hydrate (no sediment) dissociation data. X-ray computed tomography (CT) was used to visualize the methane hydrate formation and dissociation processes. A methane hydrate sample was formed from granular ice in a cylindrical vessel, and slow depressurization combined with thermal stimulation was applied to dissociate the hydrate sample. CT images showed that the water produced from the hydrate dissociation accumulated at the bottom of the vessel and increased the hydrate dissociation rate there. CT images were obtained during hydrate dissociation to confirm the radial dissociation of the hydrate sample. This radial dissociation process has implications for dissociation of hydrates in pipelines, suggesting lower dissociation times than for longitudinal dissociation. These observations were also confirmed by the numerical simulator predictions, which were in good agreement with the measured thermal data during hydrate dissociation. System pressure and sample temperature measured at the sample center followed the CH{sub 4} hydrate L{sub w}+H+V equilibrium line during hydrate dissociation. The predicted cumulative methane gas production was within 5% of the measured data. Thus, this study validated our simulation approach and assumptions, which include stationary pure methane hydrate-skeleton, equilibrium hydrate-dissociation and heat- and mass-transfer in predicting hydrate dissociation in the absence of sediments. It should be noted that the application of T+H for the pure methane hydrate system (no sediment) is outside the general applicability limits of T+H.

Gupta, A.; Moridis, G.J.; Kneafsey, T.J.; Sloan, Jr., E.D.

2009-08-15T23:59:59.000Z

402

On the production behavior of enhanced geothermal systems with CO2 as working fluid  

E-Print Network (OSTI)

temperature pressure Production/Injection pattern area (Fig.injection pressure (downhole) production pressure (downhole)On the Production Behavior of Enhanced Geothermal Systems

Pruess, K.

2008-01-01T23:59:59.000Z

403

Energy and protein production from pulp mill wastes. Quarterly report, December 15, 1978-March 15, 1979  

SciTech Connect

The objective for the past quarter included reversing the decline in productivity from the methane fermenters, confirming methane and yeast production from acetate, and making trial runs on kraft mill and semichemical mill effluents. Although methane production remained low (20 cc/hr) addition of 2% methanol doubled production. Progress has been made on identifying possible viruses that might be preventing higher methane production. Confirmation that acetate can be used as a substrate for methane production has been obtained. An initial test on the Decker filtrate from a kraft mill gave 20 cc/hr methane production.

Jurgensen, M.F.; Patton, J.T.

1979-03-15T23:59:59.000Z

404

Transient Supersonic Methane-Air Flames  

E-Print Network (OSTI)

The purpose of this study was to investigate the thermochemical properties of a transient supersonic flame. Creation of the transient flame was controlled by pulsing air in 200 millisecond intervals into a combustor filled with flowing methane. The combustor was designed following well-known principles of jet engine combustors. A flame holder and spark plug combination was used to encourage turbulent mixing and ignition of reactant gases, and to anchor the transient flame. Combustion created a high temperature and pressure environment which propelled a flame through a choked de Laval nozzle. The nozzle accelerated the products of combustion to a Mach number of 1.6, creating an underexpanded transient flame which burned for approximately 25 milliseconds. Qualitative information of the flame was gathered by two optical systems. An intensified charge-coupled device (ICCD) was constructed from constitutive components to amplify and capture the chemiluminescence generated by the transient flame, as well as the spatial structure of the flame at specific phases. To gather temporal data of a single transient event as it unfolded, a z-type schlieren optical system was constructed for use with a high speed camera. The system resolves the data in 1 millisecond increments, sufficient for capturing the transient phenomenon. The transient system was modeled computationally in Cantera using the GRI-3.0 reaction mechanism. Experimental conditions were simulated within the zero- dimensional computation by explicit control of the reacting gas mass flow rates within the system. Results from the computational model were used to describe the ignition process. The major limitation of the zero-dimensional reactor model is homogeneity and lack of spatial mixing. In this work a Lagrangian tracking model was used to describe the flame behavior and properties as it travels within the zero-dimensional reactor towards the nozzle. Following this, the flow expansion through the de Laval nozzle was calculated using one-dimensional isentropic relations. The computed reactor model data was then contrasted to experimental results from the ICCD and high speed schlieren images to fully describe the events in the transient supersonic flame.

Richards, John L.

2012-05-01T23:59:59.000Z

405

Microbial methane formation from hard coal and timber in an abandoned coal mine  

Science Conference Proceedings (OSTI)

About 7% of the global annual methane emissions originate from coal mining. Also, mine gas has come into focus of the power industry and is being used increasingly for heat and power production. In many coal deposits worldwide, stable carbon and hydrogen isotopic signatures of methane indicate a mixed thermogenic and biogenic origin. In this study, we have measured in an abandoned coal mine methane fluxes and isotopic signatures of methane and carbon dioxide, and collected samples for microbiological and phylogenetic investigations. Mine timber and hard coal showed an in-situ production of methane with isotopic signatures similar to those of the methane in the mine atmosphere. Enrichment cultures amended with mine timber or hard coal as sole carbon sources formed methane over a period of nine months. Predominantly, acetoclastic methanogenesis was stimulated in enrichments containing acetate or hydrogen/carbon dioxide. Molecular techniques revealed that the archaeal community in enrichment cultures and unamended samples was dominated by members of the Methanosarcinales. The combined geochemical and microbiological investigations identify microbial methanogenesis as a recent source of methane in abandoned coal mines.

Kruger, M.; Beckmann, S.; Engelen, B.; Thielemann, T.; Cramer, B.; Schippers, A.; Cypionka, H. [Federal Institute for Geoscience and Natural Resources BGR, Hannover (Germany)

2008-07-01T23:59:59.000Z

406

Comparision of methods and software tools for availability assessment of production systems.  

E-Print Network (OSTI)

?? This thesis presents and considers several different methods for computation of availability and production availability for production system. It is assumed that the system… (more)

Vesteraas, Astrid Hetland

2008-01-01T23:59:59.000Z

407

State-of-the-art report on methane fermentation of biomass  

Science Conference Proceedings (OSTI)

Research and development on biogas have emphasized technologies for expediting natural methane generation from anaerobic digestion of biomass. This indepth study reviews the status of biogas technology in developing countries and assesses the feasibility and desirability of expanding biogas production. First, based on an extensive review of the literature, the principal technical, social, economic, and environmental issues associated with methane production from farm-and feedlot-scale biogas plants and from marine biomass, urban refuse, and landfill are delineated. The microbiological processes underlying anaerobic digestion and the influences of various environmental factors (e.g., mixing, heating, toxicity, pH, retention time, nutrients) on the digestion process are then described. Raw materials available for biogas, different biogas plant designs (e.g., Chinese, Indian, Philippine, and bag), and the maintenance, operation, and safety of biogas plants are discussed. Next, the composition, fuel value, and processing of biogas are examined; attention is also given to the uses of sludge by-products. The ecological, health, and sociocultural implications of constructing and operating biogas plants in developing countries are reviewed and the status of biogas technology is described. The authors conclude that in both developed and developing countries the energy value obtained through biogas generation is only slightly greater than the costs involved. Thus, a major factor in implementing biogas projects is reclamation of by-products for animal feed and fertilizer. In rural areas where kerosene is expensive and labor inexpensive, a very simple biogas system prod

Woods, S.L.; Vause, K.H.; Skrinde, R.T.

1980-09-01T23:59:59.000Z

408

Advanced Turbine Systems Program: Conceptual design and product development  

SciTech Connect

Objective is to provide the conceptual design and product development plant for an ultra high efficiency, environmentally superior, and cost competitive industrial gas turbine system to be commercialized by the year 2000 (secondary objective is to begin early development of technologies critical to the success of ATS). This report addresses the remaining 7 of the 9 subtasks in Task 8, Design and Test of Critical Components: catalytic combustion, recuperator, high- temperature turbine disc, advanced control system, and ceramic materials.

1996-12-31T23:59:59.000Z

409

Evaluation of Coal Bed Methane Resource Based on Mapgis in Hancheng Mining Area  

Science Conference Proceedings (OSTI)

The spatial database of coal bed methane (CBM)is established on the analysis of data about CBM in Hancheng mining area. the relationship between the content of methane and main structure line, the radius of buffer area for structure control of gas is ... Keywords: geological information system, spatial database, spatial analysis, coal bed gad, Hancheng mining area

Chen Lingxia; Chen Lianwu

2011-02-01T23:59:59.000Z

410

Optimal Control and Equilibrium Behavior of Production-Inventory Systems  

Science Conference Proceedings (OSTI)

The relationship between commodity inventory and short-term price variations has received considerable attention, but the understanding has been limited to single-stage cross-sectional relation. In this paper, we aim to deepen our understanding of the ... Keywords: optimal control, petroleum industry, production-inventory system, rational expectations equilibrium

Owen Q. Wu; Hong Chen

2010-08-01T23:59:59.000Z

411

Soy Protein ProductsChapter 6 Uses in Food Systems  

Science Conference Proceedings (OSTI)

Soy Protein Products Chapter 6 Uses in Food Systems Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry 92B3B17CCACD0D1166530AEA8D994D92 AOCS Press Downloadable pdf of Chapter 6 Uses in

412

On-Board Hydrogen Gas Production System For Stirling Engines  

DOE Patents (OSTI)

A hydrogen production system for use in connection with Stirling engines. The production system generates hydrogen working gas and periodically supplies it to the Stirling engine as its working fluid in instances where loss of such working fluid occurs through usage through operation of the associated Stirling engine. The hydrogen gas may be generated by various techniques including electrolysis and stored by various means including the use of a metal hydride absorbing material. By controlling the temperature of the absorbing material, the stored hydrogen gas may be provided to the Stirling engine as needed. A hydrogen production system for use in connection with Stirling engines. The production system generates hydrogen working gas and periodically supplies it to the Stirling engine as its working fluid in instances where loss of such working fluid occurs through usage through operation of the associated Stirling engine. The hydrogen gas may be generated by various techniques including electrolysis and stored by various means including the use of a metal hydride absorbing material. By controlling the temperature of the absorbing material, the stored hydrogen gas may be provided to the Stirling engine as needed.

Johansson, Lennart N. (Ann Arbor, MI)

2004-06-29T23:59:59.000Z

413

Microchannel Process Technology for Compact Methane Steam Reforming  

Science Conference Proceedings (OSTI)

The study of microchannel reaction engineering and applications to compact chemical reactors has expanded rapidly both academically and industrially in recent years. Velocys{reg_sign}, a spin-out company from Battelle Memorial Institute, is commercializing microchannel process technology for large-scale chemical processing. Hydrogen production at industrial rates in compact Velocys hardware is made possible through increases in both heat and mass transfer rates for highly active and novel catalysts. In one example, a microchannel methane steam reforming reactor is presented with integrated catalytic partial oxidation of methane prior to catalytic combustion with low excess air (25%) to generate the required energy for undothermic methane steam reforming in adjacent channels. Heat transfer rates from the exothermic reactions exceed 18 W/cm{sup 2} of interplanar heat transfer surface area and exceed 65 W/cm{sup 3} of total reaction volume for a methane steam reforming contact time near 4 milliseconds. The process intensity of the Velocys methane steam reformer well exceeds that of conventional steam reformers, which have a typical volumetric heat flux below 1 W/cm{sup 3}. The integration of multiple unit operations and improvements in process intensification result in significant capital and operating cost savings for commercial applications.

Tonkovich, A L.; Perry, Steve; Wang, Yong; Qiu, Dongming; LaPlante, Timothy J.; Rogers, William A.

2004-12-01T23:59:59.000Z

414

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

415

Energy Department Expands Research into Methane Hydrates, a Vast, Untapped  

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

0, 2013 0, 2013 Energy Department Expands Research into Methane Hydrates, a Vast, Untapped Potential Energy Resource of the U.S. WASHINGTON - Today, U.S. Energy Secretary Ernest Moniz announced nearly $5 million in funding across seven research projects nationwide designed to increase our understanding of methane hydrates - a large, completely untapped natural gas resource-and what it could mean for the environment, as well as American economic competiveness and energy security. "The recent boom in natural gas production - in part due to long-term Energy Department investments beginning in the 70's and 80's - has had a transformative impact on our energy landscape, helping to reduce greenhouse gas emissions and support thousands of American jobs," said Secretary Moniz. "While our research into methane hydrates is still in its early stages, these investments will increase our understanding of this domestic resource and the potential to safely and sustainably unlock the natural gas held within."

416

Ceramic Systems - Environmental Design to Robotic Production Workflow  

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

Ceramic Systems - Environmental Design to Robotic Production Workflow Ceramic Systems - Environmental Design to Robotic Production Workflow Speaker(s): Martin Bechthold Date: February 1, 2013 - 1:00pm Location: 90-4133 Seminar Host/Point of Contact: Dane Lay The current design practice for high performance, custom facade systems easily disconnects the initial façade design from the fabrication phase. The early design phases typically involve a series of iterative tests during which the environmental performance of different design variants is verified through simulations or physical measurements. After completing the environmental design, construction and fabrication constraints are incorporated. Time, budget constraints, and workflow incompatibilities are common obstacles that prevent design teams from verifying, through

417

Advanced Turbine Systems (ATS) program conceptual design and product development  

SciTech Connect

Achieving the Advanced Turbine Systems (ATS) goals of 60% efficiency, single-digit NO{sub x}, and 10% electric power cost reduction imposes competing characteristics on the gas turbine system. Two basic technical issues arise from this. The turbine inlet temperature of the gas turbine must increase to achieve both efficiency and cost goals. However, higher temperatures move in the direction of increased NO{sub x} emission. Improved coatings and materials technologies along with creative combustor design can result in solutions to achieve the ultimate goal. GE`s view of the market, in conjunction with the industrial and utility objectives, requires the development of Advanced Gas Turbine Systems which encompass two potential products: a new aeroderivative combined-cycle system for the industrial market, and a combined-cycle system for the utility sector that is based on an advanced frame machine. The GE Advanced Gas Turbine Development program is focused on two specific products: (1) a 70 MW class industrial gas turbine based on the GE90 core technology utilizing an innovative air cooling methodology; (2) a 200 MW class utility gas turbine based on an advanced Ge heavy-duty machine utilizing advanced cooling and enhancement in component efficiency. Both of these activities required the identification and resolution of technical issues critical to achieving ATS goals. The emphasis for the industrial ATS was placed upon innovative cycle design and low emission combustion. The emphasis for the utility ATS was placed on developing a technology base for advanced turbine cooling, while utilizing demonstrated and planned improvements in low emission combustion. Significant overlap in the development programs will allow common technologies to be applied to both products. GE Power Systems is solely responsible for offering GE products for the industrial and utility markets.

1996-08-31T23:59:59.000Z

418

A neuro-fuzzy monitoring system application to flexible production systems  

Science Conference Proceedings (OSTI)

The multiple reconfiguration and the complexity of the modern production system lead to design intelligent monitoring aid systems. Accordingly, the use of neuro-fuzzy technics seems very promising. In this paper, we propose a new monitoring aid system ... Keywords: CMMS, FMECA, SCADA, UML, diagnosis, fault tree, maintenance, monitoring, neural network, neuro-fuzzy

N. Palluat; D. Racoceanu; N. Zerhouni

2006-08-01T23:59:59.000Z

419

Energy-efficient alcohol-fuel production. Technical final report  

Science Conference Proceedings (OSTI)

The proposed utilization schedule for the alcohol fuel plant and methane generator is to produce 180 proof ethanol during the spring, summer, and fall (April to October). The ethanol will be used in the farm tractors and trucks during the planting, growing, and harvesting seasons. Some alcohol can be stored for use during the winter. The still will not be operated during the winter (November to March) when the methane from the digester will be used to replace fuel oil for heating a swine farrowing building. There are tentative plans to develop a larger methane generator, which will utilize all of the manure (dairy, beef, horses, and swine) produced on the ISU farm. If this project is completed, there will be enough methane to produce all of the alcohol fuel needed to operate all of the farm equipment, heat the buildings, and possibly generate electricity for the farm. The methane generating system developed is working so well that there is a great deal of interest in expanding the project to where it could utilize all of the livestock waste on the farm for methane production.

Not Available

1982-01-01T23:59:59.000Z

420

Discovery of New Materials to Capture Methane | U.S. DOE Office of Science  

Office of Science (SC) Website

Discovery of New Materials to Capture Methane Discovery of New Materials to Capture Methane Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) News & Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: sc.bes@science.doe.gov More Information » April 2013 Discovery of New Materials to Capture Methane Predicted materials could economically produce high-purity methane from natural gas systems and separate methane from coal mine ventilation systems. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Berend Smit, UC-Berkeley

Note: This page contains sample records for the topic "methane production system" 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

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 – Santa Barbara, Santa Barbara (UCSB), CA 93106 Background The global methane reservoir in the form of gas hydrate is estimated at 500–10,000 Gt (KVENVOLDEN, 1995; MILKOV, 2004). This pool of carbon

422

NETL: Methane Hydrates - DOE/NETL Projects  

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

as described by Dillon, et al. (1998). Failure would be accompanied by the release of methane gas, but a portion of the methane is likely to be oxidized unless the gas release is...

423

Miscellaneous States Coalbed Methane Proved Reserves (Billion...  

Gasoline and Diesel Fuel Update (EIA)

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...

424

NETL: Methane Hydrates - DOE/NETL Projects  

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

Methane Degradation and Methane-Degrading Microbes in Alaska Coastal Waters Last Reviewed 5152012 DE-NT0005666 Goal The goal of this project is gain a better understanding of...

425

Engineering Design of a Continuous Duty $\\gamma$ -Production Proton Target for the Contraband Detection System  

E-Print Network (OSTI)

Engineering Design of a Continuous Duty $\\gamma$ -Production Proton Target for the Contraband Detection System

Rathke, J; Klein, J

1999-01-01T23:59:59.000Z

426

Multiple-part-type systems in high volume manufacturing : Kanban System design for automatic production scheduling  

E-Print Network (OSTI)

A Kanban Production System is designed to help a factory line meet fluctuating demands for multiple part types. Based on the parameter settings of the Control-Point Policy, the optimum Kanban levels are obtained. The ...

Lee, Kaizhao

2008-01-01T23:59:59.000Z

427

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

428

U.S. and Japan Complete Successful Field Trial of Methane Hydrate  

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

U.S. and Japan Complete Successful Field Trial of Methane Hydrate U.S. and Japan Complete Successful Field Trial of Methane Hydrate Production Technologies U.S. and Japan Complete Successful Field Trial of Methane Hydrate Production Technologies May 2, 2012 - 1:00pm Addthis Washington, DC - U.S. Energy Secretary Steven Chu announced today the completion of a successful, unprecedented test of technology in the North Slope of Alaska that was able to safely extract a steady flow of natural gas from methane hydrates - a vast, entirely untapped resource that holds enormous potential for U.S. economic and energy security. Building upon this initial, small-scale test, the Department is launching a new research effort to conduct a long-term production test in the Arctic as well as research to test additional technologies that could be used to locate,

429

Selective methane oxidation over promoted oxide catalysts  

DOE Green Energy (OSTI)

Objective was to selectively oxidize methane to C{sub 2} hydrocarbons and to oxygenates, in particular formaldehyde and methanol, in high space time yields under relatively mild reaction conditions. Results in this document are reported under the headings: methane oxidation over silica, methane oxidation over Sr/La{sub 2}O{sub 3} catalysts, and oxidative coupling of methane over sulfate-doped Sr/La{sub 2}O{sub 3} catalysts. 24 refs, 10 figs, 4 tabs.

Klier, K.; Herman, R.G.

1993-12-31T23:59:59.000Z

430

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.

Noceti, Richard P. (Pittsburgh, PA); Taylor, Charles E. (Pittsburgh, PA); D' Este, Joseph R. (Pittsburgh, PA)

1998-01-01T23:59:59.000Z

431

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

432

QUEST FOR NEW MATERIALS FOR METHANE STORAGE ...  

Science Conference Proceedings (OSTI)

Quest for New Materials for Methane Storage: Gas Adsorption and Neutron Diffraction Measurements. Yang Peng, 1,2 Vaiva ...

433

EIA - Greenhouse Gas Emissions - Methane Emissions  

U.S. Energy Information Administration (EIA)

Residential wood consumption accounted for just over 45 percent of U.S. methane emissions from stationary combustion in 2009.

434

NIST: Methane Symmetry Operations - Nuclear spin functions  

Science Conference Proceedings (OSTI)

Methane Symmetry Operations. 9. Symmetry Properties of Laboratory-Fixed Nuclear Spin Functions, Nuclear Spin Statistics, and Parities. ...

435

Coalbed Methane Production - Energy Information Administration  

U.S. Energy Information Administration (EIA)

-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: *Eastern States ...

436

Detection and Production of Methane Hydrate  

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

and Rice to be appropriate. The initial ocean locations are Blake Ridge, Hydrate Ridge, Peru Margin and GOM. The permafrost location is Mallik. Although the ultimate goal of the...

437

Colorado Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: 12: 1990's: 26: 48: 82: 125: 179: 226: 274: 312: 401: 432: 2000's: 451: 490: 520 ...

438

Utah Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA)

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: 97: 82: 75: 66: 73: 71: 71: 2010's: 66: 60-

439

Ohio Coalbed Methane Production (Billion Cubic Feet)  

U.S. Energy Information Administration (EIA)

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-

440

Louisiana (with State Offshore) Coalbed Methane Production ...  

U.S. Energy Information Administration (EIA)

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: 1: 1: 2010's: 0: 0-

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441

System issues and tradeoffs associated with syngas production and combustion  

DOE Green Energy (OSTI)

The purpose of this article is to provide an overview of the basic technology of coal gasification for the production of syngas and the utilization of that syngas in power generation. The common gasifier types, fixed/moving bed, fluidized bed, entrained flow, and transport, are described, and accompanying typical product syngas compositions are shown for different coal ranks. Substantial variation in product gas composition is observed with changes in gasifier and coal feed type. Fuel contaminants such as sulfur, nitrogen, ash, as well as heavy metals such as mercury, arsenic, and selenium, can be removed to protect the environment and downstream processes. A variety of methods for syngas utilization for power production are discussed, including both present (gas turbine and internal combustion engines) and future technologies, including oxy-fuel, chemical looping, fuel cells, and hybrids. Goals to improve system efficiencies, further reduce NOx emissions, and provide options for CO2 sequestration require advancements in many aspects of IGCC plants, including the combustion system. Areas for improvements in combustion technology that could minimize these tradeoffs between cost, complexity, and performance are discussed.

Casleton, K.H.; Richards, G.A.; Breault, R.W.

2008-06-01T23:59:59.000Z

442

Methane Emissions from Rice Fields - Final Report  

SciTech Connect

Methane (Ch4) is a greenhouse gas regarded second only to carbon dioxide in its ability to cause global warming. Methane is important because of its relatively fast increase, and also because it is, per molecule, some 60 times more effective than carbon dioxide in causing global warming. The largest present anthropogenic sources of methane are rice fields, cattle and biomass burning.

Khalil, M. Aslam; Rasmussen,Reinhold A.

2002-12-03T23:59:59.000Z

443

Biogeochemistry of Microbial Coal-Bed Methane  

E-Print Network (OSTI)

Biogeochemistry of Microbial Coal-Bed Methane Dariusz Strapo´c,1, Maria Mastalerz,2 Katherine, biodegradation Abstract Microbial methane accumulations have been discovered in multiple coal- bearing basins low-maturity coals with predominantly microbial methane gas or uplifted coals containing older

Macalady, Jenn

444

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

445

C: Applying the Toyota Production System to a Hospital Pharmacy  

E-Print Network (OSTI)

This paper presents the early results of an action research project to apply the principles of the Toyota Production System to a hospital pharmacy. We demonstrate that work systems can be improved through Bowen and Spear’s [3] Rules-in-Use: defining activities better, making simpler and more direct connections, and/or smoothing pathways. We also extend this work by introducing a problem-solving tool to facilitate process improvement. The paper will describe the interventions attempted, the results, and implications for applying the Rules-in-Use to health care environments.

Durward K. Sobek; Cindy Jimmerson

2003-01-01T23:59:59.000Z

446

Cost Analysis of a Concentrator Photovoltaic Hydrogen Production System  

SciTech Connect

The development of efficient, renewable methods of producing hydrogen are essential for the success of the hydrogen economy. Since the feedstock for electrolysis is water, there are no harmful pollutants emitted during the use of the fuel. Furthermore, it has become evident that concentrator photovoltaic (CPV) systems have a number of unique attributes that could shortcut the development process, and increase the efficiency of hydrogen production to a point where economics will then drive the commercial development to mass scale.

Thompson, J. R.; McConnell, R. D.; Mosleh, M.

2005-08-01T23:59:59.000Z

447

The development of solid methane neutron moderators at the Intense Pulsed Neutron Source facility of Argonne National Laboratory.  

DOE Green Energy (OSTI)

The Intense Pulsed Neutron Source (IPNS) started using solid methane moderators in 1985 because of their efficient conversion (about 3.5 times greater than was achieved with a liquid hydrogen moderator) of fast neutrons to long wavelength neutrons. However, the solid methane moderators experienced numerous failures due to pressure surges caused by a combination of (1) the release of stored energy, which occurred when methane radiolytic products recombined, and (2) the expansion of hydrogen, which built up in the solid methane during irradiation. During the ensuing years studies were made to determine how to operate the solid methane moderators without causing failure. The rate at which stored energy built up during irradiation and the temperature at which hydrogen was released during annealing were determined. Since 1993 IPNS has successfully operated the solid methane moderators (at about 30 K) by periodically annealing to the liquid state around 90 K after every roughly three days of irradiation.

Carpenter, J. M.; Miller, M. E.; Scott, T. L.

1999-03-10T23:59:59.000Z

448

Direct conversion of methane to C sub 2 's and liquid fuels  

DOE Green Energy (OSTI)

Research on promoted metal oxide catalysts has continued with the study of alkaline earth/metal oxide halide catalysts. A barium bromide/alumina catalyst was comparable in methane conversion and selectivity to C{sub 2}'s to barium chloride/alumina catalysts. The effects of varying methane to oxygen feed ratios were explored for one of the best alkaline earth catalysts and one of the best literature catalysts (Li/MgO). A significant decrease in the selectivity to C{sub 2}'s is observed upon addition of ethane to the feed gas (feed gas methane/ethane ratio of 3). This observation demonstrates that a significant amount of ethane should not be recycled during methane oxidation over these types of catalysts under process conditions used. Methane oxidation over barium carbonate alone results in high enough selectivities and methane conversions to suggest an oxidized barium species may be responsible for methane oxidation on barium/metal oxide catalysts. Methane coupling studies have continued using layered perovskite catalysts in the cofeed mode and double perovskite catalysts in the sequential mode. Addition of sodium to the double perovskite LaCaMnCoO{sub 6} resulted in a catalyst with improved selectivity over the one without sodium. A reactor system containing two reactors in under construction. These reactors will be used to study different feed diluents, including steam. One reactor will be used to study the effects of pressure on the reaction. Process economics were explored for a hypothetical methane coupling scheme employing a feed mixture of 7/2/1 nitrogen/methane/oxygen. Economic evaluations of the first two of a series of cases based on extrapolations of Union Carbide methane coupling results have been completed. 33 refs., 17 figs., 2 tabs.

Warren, B.K.; Campbell, K.D.; Matherne, J.L.

1990-02-14T23:59:59.000Z

449

Nuclear-Renewables Energy System for Hydrogen and Electricity Production  

Science Conference Proceedings (OSTI)

Technical Paper / Safety and Technology of Nuclear Hydrogen Production, Control, and Management / Nuclear Hydrogen Production

Geoffrey Haratyk; Charles W. Forsberg

450

Capture and Use of Coal Mine Ventilation Air Methane  

Science Conference Proceedings (OSTI)

CONSOL Energy Inc., in conjunction with MEGTEC Systems, Inc., and the U.S. Department of Energy with the U.S. Environmental Protection Agency, designed, built, and operated a commercial-size thermal flow reversal reactor (TFRR) to evaluate its suitability to oxidize coal mine ventilation air methane (VAM). Coal mining, and particularly coal mine ventilation air, is a major source of anthropogenic methane emissions, a greenhouse gas. Ventilation air volumes are large and the concentration of methane in the ventilation air is low; thus making it difficult to use or abate these emissions. This test program was conducted with simulated coal mine VAM in advance of deploying the technology on active coal mine ventilation fans. The demonstration project team installed and operated a 30,000 cfm MEGTEC VOCSIDIZER oxidation system on an inactive coal mine in West Liberty, WV. The performance of the unit was monitored and evaluated during months of unmanned operation at mostly constant conditions. The operating and maintenance history and how it impacts the implementation of the technology on mine fans were investigated. Emission tests showed very low levels of all criteria pollutants at the stack. Parametric studies showed that the equipment can successfully operate at the design specification limits. The results verified the ability of the TFRR to oxidize {ge}95% of the low and variable concentration of methane in the ventilation air. This technology provides new opportunities to reduce greenhouse gas emissions by the reduction of methane emissions from coal mine ventilation air. A large commercial-size installation (180,000 cfm) on a single typical mine ventilation bleeder fan would reduce methane emissions by 11,000 to 22,100 short tons per year (the equivalent of 183,000 to 366,000 metric tonnes carbon dioxide).

Deborah Kosmack

2008-10-31T23:59:59.000Z

451

Formation mechanism for polycyclic aromatic hydrocarbons in methane flames  

E-Print Network (OSTI)

exhausts,7­17 coal-fired, electricity generating power plants,18,19 tobacco smoke,20 residential wood applications including heating systems and gas turbines for electric power generation.62­64 The combustion propane,57,58 butane,59 ethane,31,53,60 and other aliphatic61 flames. Methane is used as fuel in many