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Note: This page contains sample records for the topic "hydrogen landfill gas" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Landfill gas with hydrogen addition A fuel for SI engines  

Science Journals Connector (OSTI)

The recent quest to replace fossil fuels with renewable and sustainable energy sources has increased interest on utilization of landfill and bio gases. It is further augmented due to environment concerns and global warming caused by burning of conventional fossil fuels, energy security concerns and high cost of crude oil, and renewable nature of these gases. The main portion of landfill gas or biogas is comprised of methane and carbon dioxide with some other gases in small proportions. Methane if released directly to the atmosphere causes about 21 times global warming effects than carbon dioxide. Thus landfill gas is generally flared, where the energy recovery is not in place in practice. Using landfill gas to generate energy not only encourages more efficient collection reducing emissions into the atmosphere but also generates revenues for operators and local governments. However, use of landfill gases for energy production is not always perceived as an attractive option because of some disadvantages. Thus it becomes necessary to address these disadvantages involved by studying landfill gases in a technological perspective and motivate utilization of landfill gas for future energy needs. This paper discussed landfill gas as a fuel for a spark ignition engine to produce power in an effective way. It has been shown that though the performance and combustion characteristics of the landfill gas fueled engine deteriorated in comparison with methane operation, increasing compression ratio and advancing spark timing improved the performance of the landfill gas operation in par with methane operation. The effects due to composition changes in the landfill gas were found more pronounced at lean and rich mixture operation than at stoichiometry. In addition, the effects of additions of hydrogen up to 30% in the landfill gas were studied. Addition of even small quantities of hydrogen such as 35% delivered better performance improvement particularly at the lean and rich limit operations and extended the operational limits. Additions of hydrogen also improved the combustion characteristics and reduced cyclic variations of landfill gas operations especially at the lean and rich mixtures.

S.O. Bade Shrestha; G. Narayanan

2008-01-01T23:59:59.000Z

2

Removal of Hydrogen Sulfide from Landfill Gas Using a Solar Regenerable Adsorbent.  

E-Print Network [OSTI]

??Landfill gas is a complex mix of gases, containing methane, carbon dioxide, nitrogen and hydrogen sulfide, created by the action of microorganisms within the landfill. (more)

Kalapala, Sreevani

2014-01-01T23:59:59.000Z

3

Landfill gas recovery  

Science Journals Connector (OSTI)

Landfill gas recovery ... However, by referring to landfills as dumps, the article creates a misimpression. ... The answers revolve around the relative emissions from composting facilities and landfills and the degree to which either finished compost or landfill gas is used beneficially. ...

Morton A. Barlaz

2009-04-29T23:59:59.000Z

4

Effect of Hydrogen Sulfide in Landfill Gas on Anode Poisoning of Solid Oxide Fuel Cells.  

E-Print Network [OSTI]

??The world is facing an energy crisis and there is an immediate need to find a sustainable source of energy. Landfill gas has the potential (more)

Khan, Feroze

2012-01-01T23:59:59.000Z

5

Landfill Gas Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of landfill gas energy resources and technologies supplemented by specific information to apply landfill gas energy within the Federal sector.

6

Landfill Gas | Open Energy Information  

Open Energy Info (EERE)

Landfill Gas Incentives Retrieved from "http:en.openei.orgwindex.php?titleLandfillGas&oldid267173" Category: Articles with outstanding TODO tasks...

7

Enhancing landfill gas recovery  

Science Journals Connector (OSTI)

The landfilling of municipal solid waste (MSW) may cause potential environmental impacts like global warming (GW), soil contaminations, and groundwater pollution. The degradation of MSW in anaerobic circumstances generates methane emissions, and can hence contribute the GW. As the GW is nowadays considered as one of the most serious environmental threats, the mitigation of methane emissions should obviously be aimed at on every landfill site where methane generation occurs. In this study, the treatment and utilization options for the generated LFG at case landfills which are located next to each other are examined. The yearly GHG emission balances are estimated for three different gas management scenarios. The first scenario is the combined heat and power (CHP) production with a gas engine. The second scenario is the combination of heat generation for the asphalt production process in the summer and district heat production by a water boiler in the winter. The third scenario is the LFG upgrading to biomethane. The estimation results illustrate that the LFG collection efficiency affects strongly on the magnitudes of GHG emissions. According to the results, the CHP production gives the highest GHG emission savings and is hence recommended as a gas utilization option for case landfills. Furthermore, aspects related to the case landfills' extraction are discussed.

Antti Niskanen; Hanna Vrri; Jouni Havukainen; Ville Uusitalo; Mika Horttanainen

2013-01-01T23:59:59.000Z

8

Landfill Gas-to-Hydrogen - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

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

20 20 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Shannon Baxter-Clemmons (Primary Contact), Russ Keller 1 South Carolina Hydrogen Fuel Cell Alliance P.O. Box 12302 Columbia, SC 29211 Phone: (803) 727-2897 Emails: baxterclemmons@schydrogen.org; russ.keller@ati.org DOE Managers HQ: Pete Devlin Phone: (202) 586-4905 Email: Peter.Devlin@ee.doe.gov GO: Gregory Kleen Phone: (720) 356-1672 Email: Gregory.Kleen@go.doe.gov Contract Number: DE-FG36-08GO18113 Subcontractor: 1 Advanced Technology International, Charleston, SC Project Start Date: March 1, 2011 Project End Date: January 31, 2013 Fiscal Year (FY) 2012 Objectives Validate that a financially viable business case * exists for a full-scale deployment of commercially

9

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

USA ICEF2006-1578 LANDFILL GAS FUELED HCCI DEMONSTRATIONengine that runs on landfill gas. The project team led bynatural gas and simulated landfill gas as a fuel source.

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

10

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

USA ICEF2006-1578 LANDFILL GAS FUELED HCCI DEMONSTRATIONengine that runs on landfill gas. The project team led bygas and simulated landfill gas as a fuel source. This

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

11

Landfill Gas Generation and Transport In Bioreactor Landfill  

Science Journals Connector (OSTI)

The activation gas and water flow each other in Bioreactor Landfill. Based on the porous media seepage and ... of water and waste components decomposition for describing landfill gas flow have been developed, and...

Qi-Lin Feng; Lei Liu; Qiang Xue; Ying Zhao

2010-01-01T23:59:59.000Z

12

Monitoring of Gin Drinkers' Bay landfill, Hong Kong: I. Landfill gas on top of the landfill  

Science Journals Connector (OSTI)

The present study centered on the composition of landfill gas and its effects on soil and ... at the Gin Drinkers' Bay (GDB) landfill in Hong Kong This first part of ... the study was a whole-year monitoring of landfill

M. H. Wong; C. T. Yu

13

LATERAL LANDFILL GAS MIGRATION: CHARACTERIZATION AND  

E-Print Network [OSTI]

LATERAL LANDFILL GAS MIGRATION: CHARACTERIZATION AND PRELIMINARY MODELING RESULTS O.BOUR*, E,UniversitéLaval, Sainte-Foy, Canada SUMMARY: Lateral landfill gas migration occurs in the surroundings of a MSW landfill complementary physical measures were used to build a conceptual model of lateral landfill gas migration

Boyer, Edmond

14

Landfill Gas Sequestration in Kansas  

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

Road Road P.O. Box 880 Morgantown, WV 26505-0880 304-285-4132 Heino.beckert@netl.doe.gov David newell Principal Investigator Kansas Geological Survey 1930 Constant Avenue Lawrence, KS 66045 785-864-2183 dnewall@kgs.uk.edu LandfiLL Gas sequestration in Kansas Background Municipal solid waste landfills are the largest source of anthropogenic methane emissions in the United States, accounting for about 34 percent of these emissions in 2004. Most methane (CH 4 ) generated in landfills and open dumps by anaerobic decomposition of the organic material in solid-waste-disposal landfills is either vented to the atmosphere or converted to carbon dioxide (CO 2 ) by flaring. The gas consists of about 50 percent methane (CH 4 ), the primary component of natural gas, about 50 percent carbon dioxide (CO

15

RCWMD Badlands Landfill Gas Project Biomass Facility | Open Energy...  

Open Energy Info (EERE)

RCWMD Badlands Landfill Gas Project Biomass Facility Jump to: navigation, search Name RCWMD Badlands Landfill Gas Project Biomass Facility Facility RCWMD Badlands Landfill Gas...

16

Penrose Landfill Gas Conversion LLC | Open Energy Information  

Open Energy Info (EERE)

Penrose Landfill Gas Conversion LLC Place: Los Angeles, California Product: Owner of landfill gas plant. References: Penrose Landfill Gas Conversion LLC1 This article is a stub....

17

Winnebago County Landfill Gas Biomass Facility | Open Energy...  

Open Energy Info (EERE)

Winnebago County Landfill Gas Biomass Facility Facility Winnebago County Landfill Gas Sector Biomass Facility Type Landfill Gas Location Winnebago County, Wisconsin Coordinates...

18

Landfill Gas | OpenEI  

Open Energy Info (EERE)

Landfill Gas Landfill Gas Dataset Summary Description The UK Department of Energy and Climate Change (DECC) publishes annual renewable energy generation and capacity by region (9 regions in England, plus Wales, Scotland and Northern Ireland). Data available 2003 to 2009. Data is included in the DECC Energy Trends: September 2010 Report (available: http://www.decc.gov.uk/assets/decc/Statistics/publications/trends/558-tr...) Source UK Department of Energy and Climate Change (DECC) Date Released September 30th, 2010 (4 years ago) Date Updated Unknown Keywords Energy Generation Hydro Landfill Gas Other Biofuels Renewable Energy Consumption Sewage Gas wind Data application/zip icon 2 Excel files, 1 for generation, 1 for capacity (zip, 24.9 KiB) Quality Metrics Level of Review Peer Reviewed

19

Occupational Safety at Landfill Sites - Hazards and Pollution Due to Landfill Gas  

Science Journals Connector (OSTI)

Landfill gas is formed on a large scale ... of methane gas which escapes every year from landfill sites in the Federal Republic of Germany ... about 2.5 million standard cubic metres. Landfill gas (LFG) with its ...

Volkmar Wilhelm

1993-01-01T23:59:59.000Z

20

Lessons from Loscoe: the uncontrolled migration of landfill gas  

Science Journals Connector (OSTI)

...the uncontrolled migration of landfill gas G. M. Williams 1 N. Aitkenhead...Environment, 1989. The Control of Landfill Gas. HMSO, London. Doelle, H...1988. Trace constituents in landfill gas. Gas Research Institute. Frost...

G. M. Williams; N. Aitkenhead

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

Natural Gas Nitric Oxide/Nitrogen Dioxide Neal Road LandfillThe methane, nitrogen and carbon dioxide concentrations ofmethane, 30% nitrogen and 30% carbon dioxide. The recorded

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

22

Influence assessment of landfill gas pumping  

Science Journals Connector (OSTI)

Changes in CH4 gas concentrations arising in a landfill as a consequence of a number of gas extraction pumping rates, are characterized. The field-monitored results indicate a fairly free flow of gas through the ...

Edward A. McBean; Anthony J. Crutcher; Frank A. Rovers

1984-04-01T23:59:59.000Z

23

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

Journal of Engineering for Gas Turbines and Power, 121:569-operations with natural gas: Fuel composition implications,USA ICEF2006-1578 LANDFILL GAS FUELED HCCI DEMONSTRATION

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

24

Federal Energy Management Program: Landfill Gas Resources and Technologies  

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

Landfill Gas Landfill Gas Resources and Technologies to someone by E-mail Share Federal Energy Management Program: Landfill Gas Resources and Technologies on Facebook Tweet about Federal Energy Management Program: Landfill Gas Resources and Technologies on Twitter Bookmark Federal Energy Management Program: Landfill Gas Resources and Technologies on Google Bookmark Federal Energy Management Program: Landfill Gas Resources and Technologies on Delicious Rank Federal Energy Management Program: Landfill Gas Resources and Technologies on Digg Find More places to share Federal Energy Management Program: Landfill Gas Resources and Technologies on AddThis.com... Energy-Efficient Products Technology Deployment Renewable Energy Federal Requirements Renewable Resources & Technologies

25

Community Renewable Energy Success Stories: Landfill Gas-to-Energy...  

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

Stories: Landfill Gas-to-Energy Projects Webinar (text version) Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects Webinar (text version) Below is the text...

26

Development of Biochar-Amended Landfill Cover for Landfill Gas Mitigation.  

E-Print Network [OSTI]

??Development of Biochar-Amended Landfill Cover for Landfill Gas Mitigation Poupak Yaghoubi Department of Civil Engineering University of Illinois at Chicago Chicago, Illinois (2011) Dissertation Chairperson: (more)

Yaghoubi, Poupak

2012-01-01T23:59:59.000Z

27

Ni catalysts derived from MgAl layered double hydroxides for hydrogen production from landfill gas conversion  

Science Journals Connector (OSTI)

A layered double hydroxide (LDH) precursor with a hydrotalcite-like structure containing Ni/Mg/Al cations was prepared. A series of Ni catalysts containing mixed-oxides and spinel phases were then obtained through thermal treatment of the LDH precursor. X-ray diffraction (XRD), transmission electron microscopy (TEM), and temperature-programmed reduction (TPR) revealed that the LDH derived Ni catalysts have well-dispersed nickel phases upon reduction. The thermal treatment temperatures have noticeable effects on the specific surface area, pore volume, phase transformation, particle size, and reducibility of the catalysts. Thermal treatment temperatures up to 700C promote the generation of mesopores which facilitate an increase in specific area and pore volume. Beyond 700C sintering occurs, mesopores collapse, and specific area and pore volume decrease. High thermal treatment temperatures favor the phase transformation to spinel solid solutions and the particle size growth. Metal-support interaction is enhanced but reducibility is hindered due to the formation of spinel solid solution phases. The LDH derived Ni catalysts were tested for landfill gas conversion at 750C and have shown excellent activity and stability in terms of methane conversion. At gas hourly space velocity (GHSV) of 240,000h?1 and pressure of 1atm, 81% methane conversion was achieved during a 48h test period without apparent catalyst deactivation.

Qingsong Wang; Wei Ren; Xueliang Yuan; Ruimin Mu; Zhanlong Song; Xiaolin Wang

2012-01-01T23:59:59.000Z

28

Forecast and Control Methods of Landfill Emission Gas to Atmosphere  

Science Journals Connector (OSTI)

The main component of landfill gas is CH4, its release is a potential hazard to the environment. To understand the gas law and landfill gas production are the prerequisite for effective control of landfill gas. This paper selects three kinds of typical ... Keywords: Landfill gas, German model, IPCC model, Marticorena dynamic model

Wang Qi; Yang Meihua; Wang Jie

2011-02-01T23:59:59.000Z

29

Tapping Landfill Gas to Provide Significant Energy Savings and...  

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

Two Large Landfill Projects BroadRock Renewables, LLC built two high efficiency electricity generating facilities that utilize landfill gas in California and Rhode Island. The...

30

Landfill Gas: From Rubbish to Resource  

Science Journals Connector (OSTI)

The prospects of using landfill gas (LFG) as a high-grade fuel...Kyoto Protocols, and energy prices, are discussed. Adsorption cycles suggested in the late 1980s by Sircar and co-workers for treating LFG are revi...

Kent S. Knaebel; Herbert E. Reinhold

2003-03-01T23:59:59.000Z

31

Landfill Gas Formation, Recovery and Emission in The Netherlands  

Science Journals Connector (OSTI)

Landfills are one of the main sources of methane in The Netherlands. Methane emissions from landfills are estimated to be about 180580 ... at a total of 7601730 ktonnes. Landfill gas recovery and utilization is...

Hans Oonk

1994-01-01T23:59:59.000Z

32

Capturing, Purifying, and Liquefying Landfill Gas for Transportation Fuel  

E-Print Network [OSTI]

Capturing, Purifying, and Liquefying Landfill Gas for Transportation Fuel TRANSPORTATION ENERGY alternative fuel, and purified landfill gas could provide a renewable domestic source of it. Landfills from landfills and use it in natural gas applications such as fueling motor vehicles. Project

33

Characterization of Landfill Gas Composition at the Fresh Kills Municipal Solid-Waste Landfill  

Science Journals Connector (OSTI)

Characterization of Landfill Gas Composition at the Fresh Kills Municipal Solid-Waste Landfill ... The most common disposal method in the United States for municipal solid waste (MSW) is burial in landfills. ... Under the New Source Performance Standards and Emission Guidelines for MSW landfills, MSW operators are required to determine the nonmethane organic gas generation rate of their landfill through modeling and/or measurements. ...

Bart Eklund; Eric P. Anderson; Barry L. Walker; Don B. Burrows

1998-06-18T23:59:59.000Z

34

Landfill Gas Resources and Technologies | Department of Energy  

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

Landfill Gas Resources and Technologies Landfill Gas Resources and Technologies Landfill Gas Resources and Technologies October 7, 2013 - 9:27am Addthis Photo of a bulldozer on top of a large trash mound in a landfill with a cloudy sky in the backdrop. Methane and other gases produced from landfill decomposition can be leveraged for energy. This page provides a brief overview of landfill gas energy resources and technologies supplemented by specific information to apply landfill gas energy within the Federal sector. Overview Landfill gases are a viable energy resource created during waste decomposition. Landfills are present in most communities. These resources can be tapped to generate heat and electricity. As organic waste decomposes, bio-gas is produced made up of roughly half methane, half carbon dioxide, and small amounts of non-methane organic

35

Using landfill gas for energy: Projects that pay  

SciTech Connect (OSTI)

Pending Environmental Protection Agency regulations will require 500 to 700 landfills to control gas emissions resulting from decomposing garbage. Conversion of landfill gas to energy not only meets regulations, but also creates energy and revenue for local governments.

NONE

1995-02-01T23:59:59.000Z

36

Modeling and simulation of landfill gas production from pretreated MSW landfill simulator  

Science Journals Connector (OSTI)

The cumulative landfill gas (LFG) production and its rate ... simulated for pretreated municipal solid waste (MSW) landfill using four models namely first order exponential ... . Considering the behavior of the p...

Rasool Bux Mahar; Abdul Razaque Sahito

2014-04-01T23:59:59.000Z

37

Landfill gas cleanup for carbonate fuel cell power generation. Final report  

SciTech Connect (OSTI)

Landfill gas represents a significant fuel resource both in the US and worldwide. The emissions of landfill gas from existing landfills has become an environmental liability contributing to global warming and causing odor problems. Landfill gas has been used to fuel reciprocating engines and gas turbines, and may also be used to fuel carbonate fuel cells. Carbonate fuel cells have high conversion efficiencies and use the carbon dioxide present in landfill gas as an oxidant. There are, however, a number of trace contaminants in landfill gas that contain chlorine and sulfur which are deleterious to fuel cell operation. Long-term economical operation of fuel cells fueled with landfill gas will, therefore, require cleanup of the gas to remove these contaminants. The overall objective of the work reported here was to evaluate the extent to which conventional contaminant removal processes could be combined to economically reduce contaminant levels to the specifications for carbonate fuel cells. A pilot plant cleaned approximately 970,000 scf of gas over 1,000 hours of operation. The testing showed that the process could achieve the following polished gas concentrations: less than 80 ppbv hydrogen sulfide; less than 1 ppmv (the detection limit) organic sulfur; less than 300 ppbv hydrogen chloride; less than 20--80 ppbv of any individual chlorinated hydrocarbon; and 1.5 ppm sulfur dioxide.

Steinfield, G.; Sanderson, R.

1998-02-01T23:59:59.000Z

38

DETERMINATION OF GUIDANCE VALUES FOR CLOSED LANDFILL GAS EMISSIONS  

E-Print Network [OSTI]

DETERMINATION OF GUIDANCE VALUES FOR CLOSED LANDFILL GAS EMISSIONS O. BOUR*, S. BERGER**, C Gambetta, 74 000 Annecy SUMMARY: In order to promote active landfill gas collection and treatment or natural attenuation, it is necessary to identify trigger values concerning landfill gas emissions

Boyer, Edmond

39

Soil gas investigations at the Sanitary Landfill  

SciTech Connect (OSTI)

A soil gas survey was performed at the 740-G Sanitary Landfill of Savannah River Plant during December, 1990. The survey monitored the presence and distribution of the C{sub 1}C{sub 4} hydrocarbons; the C{sub 5}-C{sub 10} normal paraffins; the aromatic hydrocarbons, BTXE; selected chlorinated hydrocarbons; and mercury. Significant levels of several of these contaminants were found associated with the burial site. In the northern area of the Landfill, methane concentrations ranged up to 63% of the soil gas and were consistently high on the western side of the access road. To the east of the access road in the northern and southern area high concentrations of methane were encountered but were not consistently high. Methane, the species found in highest concentration in the landfill, was generated in the landfill as the result of biological oxidation of cellulose and other organics to carbon dioxide followed by reduction of the carbon dioxide to methane. Distributions of other species are the result of burials in the landfill of solvents or other materials.

Wyatt, D.E.; Pirkle, R.J.; Masdea, D.J.

1992-07-01T23:59:59.000Z

40

Soil gas investigations at the Sanitary Landfill  

SciTech Connect (OSTI)

A soil gas survey was performed at the 740-G Sanitary Landfill of Savannah River Plant during December, 1990. The survey monitored the presence and distribution of the C[sub 1]C[sub 4] hydrocarbons; the C[sub 5]-C[sub 10] normal paraffins; the aromatic hydrocarbons, BTXE; selected chlorinated hydrocarbons; and mercury. Significant levels of several of these contaminants were found associated with the burial site. In the northern area of the Landfill, methane concentrations ranged up to 63% of the soil gas and were consistently high on the western side of the access road. To the east of the access road in the northern and southern area high concentrations of methane were encountered but were not consistently high. Methane, the species found in highest concentration in the landfill, was generated in the landfill as the result of biological oxidation of cellulose and other organics to carbon dioxide followed by reduction of the carbon dioxide to methane. Distributions of other species are the result of burials in the landfill of solvents or other materials.

Wyatt, D.E.; Pirkle, R.J.; Masdea, D.J.

1992-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

landfill  

Science Journals Connector (OSTI)

landfill, landfill(ed) site, refuse dump, garbage dump ... depository, trash disposal site (US); sanitary landfill [Landfills may often release a toxic soup of...] ? Abfalldeponie f [Zur Endlagerung ...

2014-08-01T23:59:59.000Z

42

Franklin County Sanitary Landfill - Landfill Gas (LFG) to Liquefied Natural Gas (LNG) - Project  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

FRANKLIN COUNTY SANITARY FRANKLIN COUNTY SANITARY LANDFILL - LANDFILL GAS (LFG) TO LIQUEFIED NATURAL GAS (LNG) - PROJECT January/February 2005 Prepared for: National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 Table of Contents Page BACKGROUND AND INTRODUCTION .......................................................................................1 SUMMARY OF EFFORT PERFORMED ......................................................................................2 Task 2B.1 - Literature Search and Contacts Made...................................................................2 Task 2B.2 - LFG Resource/Resource Collection System - Project Phase One.......................3 Conclusion.................................................................................................................................5

43

Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Renewable Natural Gas Renewable Natural Gas From Landfill Powers Refuse Vehicles to someone by E-mail Share Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on Facebook Tweet about Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on Twitter Bookmark Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on Google Bookmark Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on Delicious Rank Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on Digg Find More places to share Alternative Fuels Data Center: Renewable Natural Gas From Landfill Powers Refuse Vehicles on AddThis.com... April 13, 2013

44

Methane Gas Utilization Project from Landfill at Ellery (NY)  

SciTech Connect (OSTI)

Landfill Gas to Electric Energy Generation and Transmission at Chautauqua County Landfill, Town of Ellery, New York. The goal of this project was to create a practical method with which the energy, of the landfill gas produced by the decomposing waste at the Chautauqua County Landfill, could be utilized. This goal was accomplished with the construction of a landfill gas to electric energy plant (originally 6.4MW and now 9.6MW) and the construction of an inter-connection power-line, from the power-plant to the nearest (5.5 miles) power-grid point.

Pantelis K. Panteli

2012-01-10T23:59:59.000Z

45

Is converting landfill gas to energy the best option?  

Science Journals Connector (OSTI)

Is converting landfill gas to energy the best option? ... But when it comes to new discards, critics say that the hype over landfill-gas-to-energy(LFGTE) projects may have perverse outcomes, such as discouraging the diversion of organic waste from landfills and actually increasing the amount of methane being released. ... In the notice, EDF suggests that EPA tighten current controls, which require the capture and flaring of landfill gas at sites with more than 2.5 million metric tons of waste, by bringing regulation to smaller landfills and defining LFGTE projects as the best demonstrated technology (BDT). ...

Janet Pelley

2008-12-10T23:59:59.000Z

46

Characteristics of vegetation and its relationship with landfill gas in closed landfill  

Science Journals Connector (OSTI)

An investigation was carried out to elucidate landfill gas (LFG) and the vegetation characteristics in closed landfill. The results indicate that the stabilization process of the landfill is an important factor influencing the components of landfill gases. The coverage, height and species of vegetation increase with the closed time of landfill. Fourteen species were observed in the investigated cells, dominated by Phragmites australis, an invasive perennial plant. The concentrations of methane and carbon dioxide from vegetated cover soil were lower than those from non-vegetated cover soil.

Chai Xiaoli; Zhao Xin; Lou Ziyang; Takayuki Shimaoka; Hirofumi Nakayama; Cao Xianyan; Zhao Youcai

2011-01-01T23:59:59.000Z

47

Landfill gas emission prediction using Voronoi diagrams and importance sampling  

Science Journals Connector (OSTI)

Municipal solid waste (MSW) landfills are among the nation's largest emitters of methane, a key greenhouse gas, and there is considerable interest in quantifying the surficial methane emissions from landfills. There are limitations in obtaining accurate ... Keywords: Air dispersion modeling, Delaunay tessellation, Kriging, Least squares, MSW landfill, Voronoi diagram

K. R. Mackie; C. D. Cooper

2009-10-01T23:59:59.000Z

48

E-Print Network 3.0 - annual landfill gas Sample Search Results  

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

gas emissions and potential aqueous... Transfer Stations (MTS); Life Cycle Assessment (LCA); Landfill Gas (LFG): Geographic Wormation Systems (GIS... . Landfills generate gas...

49

Slippage solution of gas pressure distribution in process of landfill gas seepage  

Science Journals Connector (OSTI)

A mathematical model of landfill gas migration was established under presumption of the ... a large impact on gas pressure distribution. Landfill gas pressure and pressure gradient considering slippage effect...

Qiang Xue; Xia-ting Feng; Bing Liang

2005-12-01T23:59:59.000Z

50

Migration of landfill gas and its control by groutinga case history  

Science Journals Connector (OSTI)

...research-article Article Migration of landfill gas and its control by grouting-a...London. Parker, A. 1981. Landfill gas problems-case histories. Proceedings of Landfill Gas Symposium, UK AERE Harwell. Rees...

J. G. Raybould; D. J. Anderson

51

Analysis of Changes in Landfill Gas Output and the Economic Potential for Development of a Landfill Gas Control Prototype.  

E-Print Network [OSTI]

??The relationship between changes in local atmospheric conditions and the performance of the landfill gas collection system installed at the Rockingham County (NC) municipal solid (more)

Harrill, David Justin

2014-01-01T23:59:59.000Z

52

Capture and Utilisation of Landfill Gas  

E-Print Network [OSTI]

about 955 landfills that recovered biogas. The largest number of such landfills were in the USA landfills in Denmark that in total captured 5,800Nm3 of biogas per hour, equivalent to 276.4MW of contained #12;Biomass US DATA ON GENERATION OF BIOGAS AT LANDFILLS Eileen Berenyi, a Research Associate of EEC

Columbia University

53

Lopez Landfill Gas Utilization Project Biomass Facility | Open Energy  

Open Energy Info (EERE)

Lopez Landfill Gas Utilization Project Biomass Facility Lopez Landfill Gas Utilization Project Biomass Facility Jump to: navigation, search Name Lopez Landfill Gas Utilization Project Biomass Facility Facility Lopez Landfill Gas Utilization Project Sector Biomass Facility Type Landfill Gas Location Los Angeles County, California Coordinates 34.3871821°, -118.1122679° 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":34.3871821,"lon":-118.1122679,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

54

UNFCCC-Consolidated baseline and monitoring methodology for landfill gas  

Open Energy Info (EERE)

UNFCCC-Consolidated baseline and monitoring methodology for landfill gas UNFCCC-Consolidated baseline and monitoring methodology for landfill gas project activities Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UNFCCC-Consolidated baseline and monitoring methodology for landfill gas project activities Agency/Company /Organization: United Nations Framework Convention on Climate Change (UNFCCC) Sector: Climate, Energy Focus Area: Renewable Energy, Non-renewable Energy, - Landfill Gas Topics: Baseline projection, GHG inventory Resource Type: Guide/manual Website: cdm.unfccc.int/public_inputs/meth/acm0001/index.html Cost: Free Language: English References: UNFCCC-Consolidated baseline and monitoring methodology for landfill gas project activities[1] This article is a stub. You can help OpenEI by expanding it. References

55

Balefill Landfill Gas Utilization Proj Biomass Facility | Open Energy  

Open Energy Info (EERE)

Balefill Landfill Gas Utilization Proj Biomass Facility Balefill Landfill Gas Utilization Proj Biomass Facility Jump to: navigation, search Name Balefill Landfill Gas Utilization Proj Biomass Facility Facility Balefill Landfill Gas Utilization Proj Sector Biomass Facility Type Landfill Gas Location Bergen County, New Jersey Coordinates 40.9262762°, -74.07701° 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":40.9262762,"lon":-74.07701,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

56

Olinda Landfill Gas Recovery Plant Biomass Facility | Open Energy  

Open Energy Info (EERE)

Olinda Landfill Gas Recovery Plant Biomass Facility Olinda Landfill Gas Recovery Plant Biomass Facility Jump to: navigation, search Name Olinda Landfill Gas Recovery Plant Biomass Facility Facility Olinda Landfill Gas Recovery Plant Sector Biomass Facility Type Landfill Gas Location Orange County, California Coordinates 33.7174708°, -117.8311428° 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":33.7174708,"lon":-117.8311428,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

57

Spadra Landfill Gas to Energy Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Spadra Landfill Gas to Energy Biomass Facility Spadra Landfill Gas to Energy Biomass Facility Jump to: navigation, search Name Spadra Landfill Gas to Energy Biomass Facility Facility Spadra Landfill Gas to Energy Sector Biomass Facility Type Landfill Gas Location Los Angeles County, California Coordinates 34.3871821°, -118.1122679° 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":34.3871821,"lon":-118.1122679,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

58

Hartford Landfill Gas Utilization Proj Biomass Facility | Open Energy  

Open Energy Info (EERE)

Hartford Landfill Gas Utilization Proj Biomass Facility Hartford Landfill Gas Utilization Proj Biomass Facility Jump to: navigation, search Name Hartford Landfill Gas Utilization Proj Biomass Facility Facility Hartford Landfill Gas Utilization Proj Sector Biomass Facility Type Landfill Gas Location Hartford County, Connecticut Coordinates 41.7924343°, -72.8042797° 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":41.7924343,"lon":-72.8042797,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

59

Woodland Landfill Gas Recovery Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Gas Recovery Biomass Facility Landfill Gas Recovery Biomass Facility Jump to: navigation, search Name Woodland Landfill Gas Recovery Biomass Facility Facility Woodland Landfill Gas Recovery Sector Biomass Facility Type Landfill Gas Location Kane County, Illinois Coordinates 41.987884°, -88.4016041° 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":41.987884,"lon":-88.4016041,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

60

Bioenergy recovery from landfill gas: A case study in China  

Science Journals Connector (OSTI)

Landfill gas (LFG) utilization which means a synergy...3/h and the methane concentration was above 90%. The process and optimization of the pilot-scale test were also reported in the paper. The product gas was of...

Wei Wang; Yuxiang Luo; Zhou Deng

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

The influence of air inflow on CH4 composition ratio in landfill gas  

Science Journals Connector (OSTI)

When landfill gas is collected, air inflow into the landfill...4 productivity. The decline of CH4 content in landfill gas (LFG) negatively affects energy projects. We...2 was an effective indicator of air inflow ...

Seung-Kyu Chun

2014-02-01T23:59:59.000Z

62

The Emissions of Major Aromatic Voc as Landfill Gas from Urban Landfill Sites in Korea  

Science Journals Connector (OSTI)

In this study, concentrations of major aromatic VOCs were determined from landfill gas (LFG) at a total of five...?1 (WJ in wintertime). The LFG flux values of aromatic VOC, when compared to the contribution of n...

Ki-Hyun Kim; Sung Ok Baek; Ye-Jin Choi

2006-07-01T23:59:59.000Z

63

Landfill gas cleanup for carbonate fuel cell power generation. Final report  

SciTech Connect (OSTI)

To utilize landfill gas for power generation using carbonate fuel cells, the LFG must be cleaned up to remove sulfur and chlorine compounds. This not only benefits the operation of the fuel cell, but also benefits the environment by preventing the emission of these contaminants to the atmosphere. Commercial technologies for gas processing are generally economical in relatively large sizes (3 MMSCFD or larger), and may not achieve the low levels of contaminants required. To address the issue of LFG clean-up for fuel cell application, a process was developed utilizing commercially available technology. A pilot-scale test facility utilizing this process was built at a landfill site in Anoka, Minnesota using the EPRI fuel cell test facility used for coal gas testing. The pilot plant was tested for 1000 hours, processing 970,000 SCF (27,500 Nm{sup 3}) of landfill gas. Testing indicated that the process could achieve the following concentrations of contaminants in the clean gas: Less than 80 ppbv hydrogen sulfide; less than 1 ppm (the detection limit) organic sulfur; less than 300 ppbv hydrogen chloride; less than 20--80 ppbv if any individual chlorinated hydrocarbon; and 1.5 ppm (average) Sulfur Dioxide. The paper describes the LFG composition for bulk and trace compounds; evaluation of various methods to clean landfill gas; design of a LFG cleanup system; field test of pilot-scale gas cleanup process; fuel cell testing on simulated landfill gas; single cell testing on landfill gas contaminants and post test analysis; and design and economic analyses of a full scale gas cleanup system.

Steinfeld, G.; Sanderson, R.

1998-02-01T23:59:59.000Z

64

LANDFILL-GAS-TO-ENERGY PROJECTS: AN ANALYSIS OF NET PRIVATE AND SOCIAL BENEFITS  

E-Print Network [OSTI]

Materials Table A1: Model Results for West Lake Landfill WEST LAKE IC Engine Gas Turbine Steam Turbine Landfill WEST COUNTY IC Engine Gas Turbine Steam Turbine Average Landfill Gas Generation (mmcf/yr) 1,075 1,735 $1,250 Table A3: Model Results for Modern Landfill MODERN IC Engine Gas Turbine Steam Turbine Average

Jaramillo, Paulina

65

Estimation of Landfill Gas Generation Rate and Gas Permeability Field of Refuse Using Inverse Modeling  

Science Journals Connector (OSTI)

Landfill methane must be captured to reduce emissions of greenhouse gases; moreover it can be used as an alternative energy source. However, despite the widespread use of landfill gas (LFG) collection systems for...

Yoojin Jung; Paul Imhoff; Stefan Finsterle

2011-10-01T23:59:59.000Z

66

Passive drainage and biofiltration of landfill gas: behaviour and performance in a temperate climate.  

E-Print Network [OSTI]

??Microbial oxidation of methane has attracted interest as an alternative process for treating landfill gas emissions. Approaches have included enhanced landfill cover layers and biocovers, (more)

Dever, Stuart Anthony

2009-01-01T23:59:59.000Z

67

Effects of landfill gas on subtropical woody plants  

Science Journals Connector (OSTI)

An account is given of the influence of landfill gas on tree growth in the field at...Acacia confusa, Albizzia lebbek, Aporusa chinensis, Bombax malabaricum, Castanopsis fissa, Liquidambar formosana, Litsea gluti...

G. Y. S. Chan; M. H. Wong; B. A. Whitton

68

July 17, 2012, Webinar: Landfill Gas-to-Energy Projects  

Office of Energy Efficiency and Renewable Energy (EERE)

This webinar, held July 17, 2012, provided information on the challenges and benefits of developing successful community landfill gas-to-energy projects in Will County, Illinois, and Escambia...

69

Feasibility study: utilization of landfill gas for a vehicle fuel system, Rossman's landfill, Clackamas County, Oregon  

SciTech Connect (OSTI)

In 1978, a landfill operator in Oregon became interested in the technical and economic feasibility of recovering the methane generated in the landfill for the refueling of vehicles. DOE awarded a grant for a site-specific feasibility study of this concept. This study investigated the expected methane yield and the development of a conceptual gas-gathering system; gas processing, compressing, and storage systems; and methane-fueled vehicle systems. Cost estimates were made for each area of study. The results of the study are presented. Reasoning that gasoline prices will continue to rise and that approximately 18,000 vehicles in the US have been converted to operate on methane, a project is proposed to use this landfill as a demonstration site to produce and process methane and to fuel a fleet (50 to 400) vehicles with the gas produced in order to obtain performance and economic data on the systems used from gas collection through vehicle operation. (LCL)

None

1981-01-01T23:59:59.000Z

70

Numerical Simulation of the Radius of Influence for Landfill Gas Wells  

Science Journals Connector (OSTI)

...of the Radius of Influence for Landfill Gas Wells Harold Vigneault a * * Corresponding...used to quantify the efficiency of landfill gas recovery wells for unlined landfills...Results will help with the design of landfill gas recovery systems. In North America...

Harold Vigneault; Ren Lefebvre; Miroslav Nastev

71

Evaluating fugacity models for trace components in landfill gas  

Science Journals Connector (OSTI)

A fugacity approach was evaluated to reconcile loadings of vinyl chloride (chloroethene), benzene, 1,3-butadiene and trichloroethylene in waste with concentrations observed in landfill gas monitoring studies. An evaluative environment derived from fictitious but realistic properties such as volume, composition, and temperature, constructed with data from the Brogborough landfill (UK) test cells was used to test a fugacity approach to generating the source term for use in landfill gas risk assessment models (e.g. GasSim). SOILVE, a dynamic Level II model adapted here for landfills, showed greatest utility for benzene and 1,3-butadiene, modelled under anaerobic conditions over a 10year simulation. Modelled concentrations of these components (95?300?gm?3; 43?gm?3) fell within measured ranges observed in gas from landfills (24?300180?000?gm?3; 2070?gm?3). This study highlights the need (i) for representative and time-referenced biotransformation data; (ii) to evaluate the partitioning characteristics of organic matter within waste systems and (iii) for a better understanding of the role that gas extraction rate (flux) plays in producing trace component concentrations in landfill gas.

Sophie Shafi; Andrew Sweetman; Rupert L. Hough; Richard Smith; Alan Rosevear; Simon J.T. Pollard

2006-01-01T23:59:59.000Z

72

Diversity and activity of methanotrophs in landfill cover soils with and without landfill gas recovery systems  

Science Journals Connector (OSTI)

Abstract Aerobic CH4 oxidation plays an important role in mitigating CH4 release from landfills to the atmosphere. Therefore, in this study, oxidation activity and community of methanotrophs were investigated in a subtropical landfill. Among the three sites investigated, the highest CH4 concentration was detected in the landfill cover soil of the site (A) without a landfill gas (LFG) recovery system, although the refuse in the site had been deposited for a longer time (?1415 years) compared to the other two sites (?611 years) where a LFG recovery system was applied. In April and September, the higher CH4 flux was detected in site A with 72.4 and 51.7gm?2d?1, respectively, compared to the other sites. The abundance of methanotrophs assessed by quantification of pmoA varied with location and season. A linear relationship was observed between the abundance of methanotrophs and CH4 concentrations in the landfill cover soils (R=0.827, P<0.001). The key factors influencing the methanotrophic diversity in the landfill cover soils were pH, the water content and the CH4 concentration in the soil, of which pH was the most important factor. Type I methanotrophs, including Methylococcus, Methylosarcina, Methylomicrobium and Methylobacter, and type II methanotrophs (Methylocystis) were all detected in the landfill cover soils, with Methylocystis and Methylosarcina being the dominant genera. Methylocystis was abundant in the slightly acidic landfill cover soil, especially in September, and represented more than 89% of the total terminal-restriction fragment abundance. These findings indicated that the LFG recovery system, as well as physical and chemical parameters, affected the diversity and activity of methanotrophs in landfill cover soils.

Yao Su; Xuan Zhang; Fang-Fang Xia; Qi-Qi Zhang; Jiao-Yan Kong; Jing Wang; Ruo He

2014-01-01T23:59:59.000Z

73

Meteorological parameters as an important factor on the energy recovery of landfill gas in landfills  

Science Journals Connector (OSTI)

The effect of meteorological factors on the composition and the energy recovery of the landfill gas (LFG) were evaluated in this study. Landfill gas data consisting of methane carbon dioxide and oxygen content as well as LFG temperature were collected from April 2009 to March 2010 along with meteorological data. The data set were first used to visualize the similarity by using self-organizing maps and to calculate correlation factors. Then the data was used with ANN to further analyze the impacts of meteorological factors. In both analysis it is seen that the most important meteorological parameter effective on LFG energy content is soil temperatures. Furthermore ANN was found to be successful in explaining variations of methane content and temperature of LFG with correlation coefficients of 0.706 and 0.984 respectively. ANN was proved itself to be a useful tool for estimating energy recovery of the landfill gas.

?brahim Uyanik; Bestamin zkaya; Selami Demir; Mehmet akmakci

2012-01-01T23:59:59.000Z

74

Toxic oxide deposits from the combustion of landfill gas and biogas  

Science Journals Connector (OSTI)

Oxide deposits found in combustion systems of landfill gas fired power stations contain relatively high concentrations ... They are selectively transported as part of the landfill gas into the gas-burning devices...

Dietmar Glindemann; Peter Morgenstern

1996-06-01T23:59:59.000Z

75

Carbon dioxide removal and capture for landfill gas up-grading  

Science Journals Connector (OSTI)

Within the frame of an EC financially supported project - LIFE05 ENV/IT/000874 GHERL (Greenhouse Effect Reduction from Landfill)a pilot plant was set up in order to demonstrate the feasibility of applying chemical absorption to remove carbon dioxide from landfill gas. After proper upgrading - basically removal of carbon dioxide, hydrogen sulphide, ammonia and other trace gas compoundthe gas might be fed into the distribution grid for natural gas or used as vehicle fuel, replacing a fossil fuel thus saving natural resources and carbon dioxide emissions. Several experiences in Europe have been carried out concerning the landfill gas - and biogas from anaerobic digestion - quality up-grading through CO2 removal, but in all of them carbon dioxide was vented to the atmosphere after separation, without any direct benefit in terms of greenhouse gases reduction. With respect to those previous experiences, in this work the attention was focused on CO2 removal from landfill gas with an effective capture process, capable of removing carbon dioxide from atmosphere, through a globally carbon negative process. In particular, processes capable of producing final solid products were investigated, with the aim of obtaining as output solid compounds which can be either used in the chemical industry or disposed off. The adopted absorption process is based on using aqueous solutions of potassium hydroxide, with the final aim of producing potassium carbonate. Potassium carbonate is a product which has several applications in the chemical industry if obtained with adequate quality. It can be sold as a pulverised solid, or in aqueous solution. Several tests were carried out at the pilot plant, which was located at a landfill site, in order to feed it with a fraction of the on-site collected landfill gas. The results of the experimental campaign are reported, explained and commented in the paper. Also a discussion on economic issues is presented.

Lidia Lombardia; Andrea Corti; Ennio Carnevale; Renato Baciocchi; Daniela Zingaretti

2011-01-01T23:59:59.000Z

76

Removal and determination of trimethylsilanol from the landfill gas  

Science Journals Connector (OSTI)

The removal and determination of trimethylsilanol (TMSOH) in landfill gas has been studied before and after the special E3000-ITC System. The system works according to principle of temperature swing. The performance of TMSOH and humidity removal was 20% and more than 90%, respectively. The six of active carbons and impinger method were tested on the full-scale landfill in Poland for TMSOH and siloxanes determination. The extraction method and absorption in acetone were used. The concentration of TMSOH and siloxanes were found in range from 23.6 to 29.2mg/m3 and from 18.0 to 38.9mg/m3, respectively. The content of TMSOH in biogas originating from landfill was 41% out of all siloxanes. Moreover, the used system is alternative to other existing technique of landfill gas purification.

Grzegorz Piechota; Manfred Hagmann; Roman Buczkowski

2012-01-01T23:59:59.000Z

77

The landfill gas activity of the IEA bioenergy agreement  

Science Journals Connector (OSTI)

Landfill gas (LFG) is a renewable source of useful energy. Its world wide annual energy potential is in the range of a few hundred TWh. Today it is only marginally exploited. LFG is also an important contributor to the atmospheres CH4-content, it can be estimated to contribute about 25% of the methane coming from anthropogenic sources. In comparison to many other sources of methane emissions such as peat bogs, rice paddies, termites and sheep, landfills can be considered to be point sources, i.e. they are stationary and of limited extension. For this reason landfill gas (LFG) utilisation is one of the most cost effective ways to combat the greenhouse effect. The aim of the IEA activity on LFG is to promote information exchange and co-operation between national programmes in order to promote the proliferation of landfill gas utilisation. During the period 19921994 the LFG activity has had six participating countries: Canada, Denmark, Norway, The Netherlands, Sweden, UK and USA. In the past three-year period, the activity has been mainly directed towards establishing networks and obtaining an over-view of data related to LFG in the member countries. Numerous contacts have been established and perhaps of most importance for the future of the activity are the links towards organisations involved in the development of landfill technology, such as ISWA and SWANA. The gathering and evaluation of data within the LFG area from the member countries has resulted in a number of documents that are to be published within the near future. These documents cover information on LFG utilisation, landfill research, landfill gas potentials, landfill emission assessment and also non-technical barriers to LFG utilisation.

A Lagerkvist

1995-01-01T23:59:59.000Z

78

An Empirical Analysis of Gas Well Design and Pumping Tests for Retrofitting Landfill Gas Collection.  

E-Print Network [OSTI]

??Retrofitting a landfill with a gas collection system is an expensive and time consuming endeavor. Such an undertaking usually consists of longer-term extraction testing programs (more)

Stevens, Derek

2013-01-01T23:59:59.000Z

79

Albany Landfill Gas Utilization Project Biomass Facility | Open Energy  

Open Energy Info (EERE)

Utilization Project Biomass Facility Utilization Project Biomass Facility Jump to: navigation, search Name Albany Landfill Gas Utilization Project Biomass Facility Facility Albany Landfill Gas Utilization Project Sector Biomass Facility Type Landfill Gas Location Albany County, New York Coordinates 42.5756797°, -73.9359821° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.5756797,"lon":-73.9359821,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

80

List of Landfill Gas Incentives | Open Energy Information  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 377 Landfill Gas Incentives. CSV (rows 1 - 377) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Advanced Energy Fund (Ohio) Public Benefits Fund Ohio Commercial Industrial Institutional Residential Utility Biomass CHP/Cogeneration Fuel Cells Fuel Cells using Renewable Fuels Geothermal Electric

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Landfill-Gas-to-Energy Projects:? Analysis of Net Private and Social Benefits  

Science Journals Connector (OSTI)

Under these standards, large landfills (that is, those with the potential to emit more than 50 Mg/year of nonmethane volatile organic compounds) have to collect and combust the landfill gas. ... Since the 1996 enact ment of the New Source Performance Standard and Emission Guidelines for Municipal Solid Waste Landfills, the Landfill Methane Outreach Program has become a tool to help landfills meet the new regulations. ... The costs of a collection system depend on different site factors, such as landfill depth, number of wells required, etc. Table 1 provides average collection system costs for landfills of three different sizes. ...

Paulina Jaramillo; H. Scott Matthews

2005-08-27T23:59:59.000Z

82

Landfill Gas Cleanup for Carbonate Fuel Cell Power Generation: Final Report  

SciTech Connect (OSTI)

Landfill gas represents a significant fuel resource both in the United States and worldwide. The emissions of landfill gas from existing landfills has become an environmental liability contributing to global warming and causing odor problems. Landfill gas has been used to fuel reciprocating engines and gas turbines, and may also be used to fuel carbonate fuel cells. Carbonate fuel cells have high conversion efficiencies and use the carbon dioxide present in landfill gas as an oxidant. There are, however, a number of trace contaminants in landfill gas that contain chlorine and sulfur which are deleterious to fuel cell operation. Long-term economical operation of fuel cells fueled with landfill gas will, therefore, require cleanup of the gas to remove these contaminants. The overall objective of the work reported here was to evaluate the extent to which conventional contaminant removal processes could be combined.

Steinfeld, G.; Sanderson, R.

1998-02-01T23:59:59.000Z

83

Powering Microturbines With Landfill Gas, October 2002 | Department...  

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

7.4 Landfill Methane Utilization CHP and Bioenergy Systems for Landfills and Wastewater Treatment Plants CHP and Bioenergy for Landfills and Wastewater Treatment Plants:...

84

Landfill  

Science Journals Connector (OSTI)

Landfill, also known as adump (US) or atip (UK), is asite for the disposal of waste materials by burial and is the oldest form of waste treatment . Historically, landfills have been one of the most common...

2008-01-01T23:59:59.000Z

85

Upgrading of Landfill Gas by Membranes Experiences with Operating a Pilot Plant  

Science Journals Connector (OSTI)

In the last years the interest in using landfill gas as an energy source has risen ... has been constructed on the premises of a landfill dump in Neuss. In a two-stage-process, landfill gas is upgraded in order t...

R. Rautenbach; K. Welsch

1990-01-01T23:59:59.000Z

86

Modeling the final phase of landfill gas generation from long-term observations  

Science Journals Connector (OSTI)

For waste management, methane emissions from landfills and their effect on climate change are of serious concern. Current models for biogas generation that focus on the economic use of the landfill gas are usuall...

Johannes Tintner; Manfred Khleitner; Erwin Binner; Norbert Brunner

2012-06-01T23:59:59.000Z

87

Renewable Hydrogen: Technology Review and Policy Recommendations for State-Level Sustainable Energy Futures  

E-Print Network [OSTI]

a solar and landfill gas demonstration in Canada, and aSolar-Powered Landfill Gas Conversion in Saskatoon, Canadasolar concentrators to produce electricity and hydrogen from landfill gas. Canada

Lipman, Timothy; Edwards, Jennifer Lynn; Brooks, Cameron

2006-01-01T23:59:59.000Z

88

Landfill  

Science Journals Connector (OSTI)

The solid wastes and refuse disposed of by burial in pits constructed for the purpose, natural depressions, or abandoned quarries or other artificial excavations. Localities used in this way are called landfill s...

2008-01-01T23:59:59.000Z

89

Impact of using high-density polyethylene geomembrane layer as landfill intermediate cover on landfill gas extraction  

Science Journals Connector (OSTI)

Clay is widely used as a traditional cover material for landfills. As clay becomes increasingly costly and scarce, and it also reduces the storage capacity of landfills, alternative materials with low hydraulic conductivity are employed. In developing countries such as China, landfill gas (LFG) is usually extracted for utilization during filling stage, therefore, the intermediate covering system is an important part in a landfill. In this study, a field test of LFG extraction was implemented under the condition of using high-density polyethylene (HDPE) geomembrane layer as the only intermediate cover on the landfill. Results showed that after welding the HDPE geomembranes together to form a whole airtight layer upon a larger area of landfill, the gas flow in the general pipe increased 25% comparing with the design that the HDPE geomembranes were not welded together, which means that the gas extraction ability improved. However as the heat isolation capacity of the HDPE geomembrane layer is low, the gas generation ability of a shallow landfill is likely to be weakened in cold weather. Although using HDPE geomembrane layer as intermediate cover is acceptable in practice, the management and maintenance of it needs to be investigated in order to guarantee its effective operation for a long term.

Zezhi Chen; Huijuan Gong; Mengqun Zhang; Weili Wu; Yu Liu; Jin Feng

2011-01-01T23:59:59.000Z

90

Passive drainage and biofiltration of landfill gas: Results of Australian field trial  

Science Journals Connector (OSTI)

A field scale trial was undertaken at a landfill site in Sydney, Australia (20042008), to investigate passive drainage and biofiltration of landfill gas as a means of managing landfill gas emissions from low to moderate gas generation landfill sites. The objective of the trial was to evaluate the effectiveness of a passive landfill gas drainage and biofiltration system at treating landfill gas under field conditions, and to identify and evaluate the factors that affect the behaviour and performance of the system. The trial results showed that passively aerated biofilters operating in a temperate climate can effectively oxidise methane in landfill gas, and demonstrated that maximum methane oxidation efficiencies greater than 90% and average oxidation efficiencies greater than 50% were achieved over the 4years of operation. The trial results also showed that landfill gas loading was the primary factor that determined the behaviour and performance of the passively aerated biofilters. The landfill gas loading rate was found to control the diffusion of atmospheric oxygen into the biofilter media, limiting the microbial methane oxidation process. The temperature and moisture conditions within the biofilter were found to be affected by local climatic conditions and were also found to affect the behaviour and performance of the biofilter, but to a lesser degree than the landfill gas loading.

Stuart A. Dever; Gareth E. Swarbrick; Richard M. Stuetz

2011-01-01T23:59:59.000Z

91

Numerical Early Warning Model Research of Landfill Gas Permeation and Diffusion Considering Flow-Temperature Coupling  

Science Journals Connector (OSTI)

Based on seepage mechanics in porous medium gas and heat transfer theory, numerical early warning model is established, which is on quantitative description of migration and release of landfill gas and penetration and diffusion of energy, and dynamic ... Keywords: component, landfill gas, flow-temperature coupling, gas pressure and temperature distribution, numerical early warning model

Xue Qiang; Feng Xia-ting; Ma Shi-jin; Zhou Xiao-jun

2009-10-01T23:59:59.000Z

92

Renewable LNG: Update on the World's Largest Landfill Gas to LNG Plant  

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

LNG LNG Update on the world's largest landfill gas to LNG plant Mike McGowan Head of Government Affairs Linde NA, Inc. June 12, 2012 $18.3 billion global sales A leading gases and engineering company Linde North America Profile $2.3 billion in gases sales revenue in North America in 2011 5,000 employees throughout the U.S., Canada and the Caribbean Supplier of compressed and cryogenic gases and technology Atmospheric gases - oxygen, nitrogen, argon Helium LNG and LPG Hydrogen Rare gases Plant engineering and supply LNG Petrochemicals Natural gas processing Atmospheric gases 3 Linde's alternative fuels portfolio Green hydrogen production - Magog, Quebec Renewable liquefied natural gas production - Altamont, CA Biogas fueling, LNG import terminal - Sweden

93

Natural Gas and Hydrogen Infrastructure Opportunities Workshop...  

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

Natural Gas and Hydrogen Infrastructure Opportunities Workshop Agenda Natural Gas and Hydrogen Infrastructure Opportunities Workshop Agenda Agenda for the Natural Gas and Hydrogen...

94

Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects Webinar (text version)  

Office of Energy Efficiency and Renewable Energy (EERE)

Below is the text version of the Webinar titled "Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects," originally presented on July 17, 2012.

95

Application of landfill gas as a liquefied natural gas fuel for refuse trucks in Texas  

E-Print Network [OSTI]

truck operations. The purpose of this thesis is to develop a methodology that can be used to evaluate the use of LFG generated at landfills as a Liquefied Natural Gas (LNG) fuel source for refuse trucks in Texas. The methodology simulates the gas...

Gokhale, Bhushan

2007-04-25T23:59:59.000Z

96

Vapor phase transport at a hillside landfill  

Science Journals Connector (OSTI)

...ambient density gradients. Post-landfill gas input reverses the direction of...landfill may explain observations of landfill gas found at depth. Post-landfill...of gas generation. Transport of landfill gas is shown to be dominated by diffusion...

P. H. Stauffer; N. D. Rosenberg

97

The modelling of biochemical-thermal coupling effect on gas generation and transport in MSW landfill  

Science Journals Connector (OSTI)

The landfill gas generation was investigated based on the theories of the thermodynamics, microbial dynamics and chemical dynamics. The coupling model was developed for describing the gas transport and heat release. And the relationship between the gas generation rate and the temperature was proposed. The parameters in the gas generation model were obtained by bioreactor test in order to evaluate the volume of gas production of the Erfeishan landfill in China. The simulation results shown that the operating life of the landfill will be overestimated if the model does not consider the thermal effect during degradation of the solid substrate.

Liu Lei; Liang Bing; Xue Qiang; Zhao Ying; Yang Chun

2011-01-01T23:59:59.000Z

98

Landfill gas cleanup for carbonate fuel cell power generation. CRADA final report  

SciTech Connect (OSTI)

The overall objective of the work reported here was to evaluate the extent to which conventional contaminant removal processes could be combined to economically reduce contaminant levels to the specifications for carbonate fuel cells. The technical effort was conducted by EPRI, consultant David Thimsen, Kaltec of Minnesota, Energy Research Corporation (ERC) and Interpoll Laboratories. The Electric Power Research Institute (EPRI) made available two test skids originally used to test an ERC 30 kW carbonate fuel cell at the Destec Coal Gasification Plan in Plaquemine, LA. EPRI`s carbonate fuel cell pilot plant was installed at the Anoka County Regional Landfill in Ramsey, Minnesota. Additional gas cleaning equipment was installed to evaluate a potentially inexpensive, multi-stage gas cleaning process to remove sulfur and chlorine in the gas to levels acceptable for long-term, economical carbonate fuel cell operation. The pilot plant cleaned approximately 970,000 scf (27,500 Nm{sup 3}) of gas over 1,000 hours of operation. The testing showed that the process could achieve the following polished gas concentrations. Less than 80 ppbv hydrogen sulfide; less than 1 ppmv (the detection limit) organic sulfur; less than 300 ppbv hydrogen chloride; less than 20--80 ppbv of any individual chlorined hydrocarbon; and 1.5 ppm sulfur dioxide. These were the detection limits of the analytical procedures employed. It is probable that the actual concentrations are below these analytical limits.

Steinfeld, G.; Sanderson, R.

1998-02-01T23:59:59.000Z

99

Study on optimization model of energy collection efficiency and its power generation benefit evaluation of landfill gas  

Science Journals Connector (OSTI)

An optimization model for joint biogas energy collection efficiency that targets the prediction model for landfill gas output dynamics and the optimization model for gas well output has been established. The model was used to comprehensively analyze and evaluate the collection efficiency of a landfill gas well together with the long-term monitoring the gas output of the gas well within Chenjiachong Landfill. The collection efficiency increased by more than 50% than the original collection of landfill biogas and the power generation efficiency increased more than two times after the reservoir area of the landfill was optimized and regulated.

Xue Qiang

2013-01-01T23:59:59.000Z

100

July 17, 2012, Webinar: Landfill Gas-to-Energy Projects | Department of  

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

July 17, 2012, Webinar: Landfill Gas-to-Energy Projects July 17, 2012, Webinar: Landfill Gas-to-Energy Projects July 17, 2012, Webinar: Landfill Gas-to-Energy Projects This webinar, held July 17, 2012, provided information on the challenges and benefits of developing successful community landfill gas-to-energy projects in Will County, Illinois, and Escambia County, Florida. Download the presentations below, watch the webinar (WMV 112 MB) or view the text version. Find more CommRE webinars. Prairie View RDF Gas to Energy Facility: A Public/Private Partnership Will County partnered with Waste Management, using a portion of the county's DOE Energy Efficiency and Conservation Block Grant (EECBG) funding, to develop the Prairie View Recycling and Disposal Facility. A gas purchase agreement was executed in 2010 and the facility became operational

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Tracer method to measure landfill gas emissions from leachate collection systems  

Science Journals Connector (OSTI)

This paper describes a method developed for quantification of gas emissions from the leachate collection system at landfills and present emission data measured at two Danish landfills with no landfill gas collection systems in place: Fakse landfill and AV Milj. Landfill top covers are often designed to prevent infiltration of water and thus are made from low permeable materials. At such sites a large part of the gas will often emit through other pathways such as the leachate collection system. These point releases of gaseous constituents from these locations cannot be measured using traditional flux chambers, which are often used to measure gas emissions from landfills. Comparing tracer measurements of methane (CH4) emissions from leachate systems at Fakse landfill and AV Milj to measurements of total CH4 emissions, it was found that approximately 47% (351kg CH4 d?1) and 27% (211kg CH4 d?1), respectively, of the CH4 emitting from the sites occurred from the leachate collection systems. Emission rates observed from individual leachate collection wells at the two landfills ranged from 0.1 to 76kg CH4 d?1. A strong influence on emission rates caused by rise and fall in atmospheric pressure was observed when continuously measuring emission from a leachate well over a week. Emission of CH4 was one to two orders of magnitude higher during periods of decreasing pressure compared to periods of increasing pressure.

Anders M. Fredenslund; Charlotte Scheutz; Peter Kjeldsen

2010-01-01T23:59:59.000Z

102

Effects of a temporary HDPE cover on landfill gas emissions: Multiyear evaluation with the static chamber approach at an Italian landfill  

Science Journals Connector (OSTI)

According to the European Landfill Directive 1999/31/EC and the related Italian Legislation (D. Lgs. No. 36/2003), monitoring and control procedures of landfill gas emissions, migration and external dispersions are clearly requested. These procedures could be particularly interesting in the operational circumstance of implementing a temporary cover, as for instance permitted by the Italian legislation over worked-out landfill sections, awaiting the evaluation of expected waste settlements. A possible quantitative approach for field measurement and consequential evaluation of landfill CO2, CH4 emission rates in pairs consists of the static, non-stationary accumulation chamber technique. At the Italian level, a significant and recent situation of periodical landfill gas emission monitoring is represented by the sanitary landfill for non-hazardous waste of the Fano town district, where monitoring campaigns with the static chamber have been annually conducted during the last 5years (20052009). For the entire multiyear monitoring period, the resulting CO2, CH4 emission rates varied on the whole up to about 13,100g CO2 m?2d?1 and 3800g CH4 m?2d?1, respectively. The elaboration of these landfill gas emission data collected at the Fano case-study site during the monitoring campaigns, presented and discussed in the paper, gives rise to a certain scientific evidence of the possible negative effects derivable from the implementation of a temporary HDPE cover over a worked-out landfill section, notably: the lateral migration and concentration of landfill gas emissions through adjacent, active landfill sections when hydraulically connected; and consequently, the increase of landfill gas flux velocities throughout the reduced overall soil cover surface, giving rise to a flowing through of CH4 emissions without a significant oxidation. Thus, these circumstances are expected to cause a certain increase of the overall GHG emissions from the given landfill site.

Bruno Capaccioni; Cristina Caramiello; Fabio Tatno; Alessandro Viscione

2011-01-01T23:59:59.000Z

103

Hollow fiber membrane process for the pretreatment of methane hydrate from landfill gas  

Science Journals Connector (OSTI)

Abstract Landfill gas is major source of green house effect because it is mainly composed of CH4 and CO2. Especially, the separation of CH4 from landfill gas was studied actively due to its high heating value which can be used for energy resource. In this study, polymeric hollow fiber membrane was produced by drywet phase inversion method to separate CH4 from the landfill gas. The morphology of the membranes was examined by scanning electron microscopy (SEM) to understand and correlate the morphology with the performance of the membrane. Firstly, single gas permeation and mixed gas separation were performed in lab-scale. After then, a pilot scale membrane process was designed using a simulation program. The manufactured process settled in Gyeong-ju landfill site and operated at various conditions. As a result, CH4 was concentrated to 88vol.% and also CO2 removal efficiency increases up to 86.7%.

KeeHong Kim; WonKil Choi; HangDae Jo; JongHak Kim; Hyung Keun Lee

2014-01-01T23:59:59.000Z

104

Hydrogen | Department of Energy  

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

electric cooperatives* to offer net metering to customers who generate electricity using solar energy, wind energy, hydropower, hydrogen, biomass, landfill gas, geothermal energy,...

105

Tapping Landfill Gas to Provide Significant Energy Savings and...  

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

- Case Study, 2013 BroadRock Renewables LLC, in collaboration with DCO Energy, operates combined cycle electric generating plants at the Central Landfill in Johnston, Rhode...

106

Landfill Gas Resources and Technologies | Department of Energy  

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

Using methane in these applications helps keep it out of the atmosphere, reducing air pollution. Federal Application Before conducting an assessment or deploying landfill...

107

Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects  

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

Community Renewable Energy Success Stories: Landfill Gas-to-Energy Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects Webinar (text version) Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects Webinar (text version) Below is the text version of the Webinar titled "Community Renewable Energy Success Stories: Landfill Gas-to-Energy Projects," originally presented on July 17, 2012. Recorded Voice: The broadcast is now starting. All attendees are in listen-only mode. Sarah Busche: Hello, everyone. Good afternoon and welcome to today's webinar. This is sponsored by the U.S. Department of Energy. My name is Sarah Busche, and I'm here with Devin Egan, and we're broadcasting live from the National Renewable Energy Laboratory in Golden, Colorado. We're going to give folks

108

Modified landfill gas generation rate model of first-order kinetics and two-stage reaction  

Science Journals Connector (OSTI)

This investigation was carried out to establish a new domestic landfill gas (LFG) generation rate model that takes...L 0), the reaction rate constant in the first stage (K 1), and ...

Jiajun Chen; Hao Wang

2009-09-01T23:59:59.000Z

109

Renewable LNG: Update on the World's Largest Landfill Gas to LNG Plant  

Broader source: Energy.gov [DOE]

Success story about LNG from landfill gas. Presented by Mike McGowan, Linde NA, Inc., at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

110

Distributed Hydrogen Production from Natural Gas: Independent...  

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

Distributed Hydrogen Production from Natural Gas: Independent Review Panel Report Distributed Hydrogen Production from Natural Gas: Independent Review Panel Report Independent...

111

Natural Gas and Hydrogen Infrastructure Opportunities: Markets...  

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

Natural Gas and Hydrogen Infrastructure Opportunities: Markets and Barriers to Growth Natural Gas and Hydrogen Infrastructure Opportunities: Markets and Barriers to Growth...

112

Emission assessment at the Burj Hammoud inactive municipal landfill: Viability of landfill gas recovery under the clean development mechanism  

Science Journals Connector (OSTI)

This paper examines landfill gas (LFG) emissions at a large inactive waste disposal site to evaluate the viability of investment in LFG recovery through the clean development mechanism (CDM) initiative. For this purpose, field measurements of LFG emissions were conducted and the data were processed by geospatial interpolation to estimate an equivalent site emission rate which was used to calibrate and apply two LFG prediction models to forecast LFG emissions at the site. The mean CH4 flux values calculated through tessellation, inverse distance weighing and kriging were 0.1880.014, 0.2240.012 and 0.2370.008lCH4/m2hr, respectively, compared to an arithmetic mean of 0.24l/m2hr. The flux values are within the reported range for closed landfills (0.060.89l/m2hr), and lower than the reported range for active landfills (0.422.46l/m2hr). Simulation results matched field measurements for low methane generation potential (L0) values in the range of 19.8102.6m3/ton of waste. LFG generation dropped rapidly to half its peak level only 4yrs after landfill closure limiting the sustainability of LFG recovery systems in similar contexts and raising into doubt promoted CDM initiatives for similar waste.

Mutasem El-Fadel; Layale Abi-Esber; Samer Salhab

2012-01-01T23:59:59.000Z

113

Emission assessment at the Burj Hammoud inactive municipal landfill: Viability of landfill gas recovery under the clean development mechanism  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer LFG emissions are measured at an abandoned landfill with highly organic waste. Black-Right-Pointing-Pointer Mean headspace and vent emissions are 0.240 and 0.074 l CH{sub 4}/m{sup 2} hr, respectively. Black-Right-Pointing-Pointer At sites with high food waste content, LFG generation drops rapidly after site closure. Black-Right-Pointing-Pointer The viability of LFG recovery for CDMs in developing countries is doubtful. - Abstract: This paper examines landfill gas (LFG) emissions at a large inactive waste disposal site to evaluate the viability of investment in LFG recovery through the clean development mechanism (CDM) initiative. For this purpose, field measurements of LFG emissions were conducted and the data were processed by geospatial interpolation to estimate an equivalent site emission rate which was used to calibrate and apply two LFG prediction models to forecast LFG emissions at the site. The mean CH{sub 4} flux values calculated through tessellation, inverse distance weighing and kriging were 0.188 {+-} 0.014, 0.224 {+-} 0.012 and 0.237 {+-} 0.008 l CH{sub 4}/m{sup 2} hr, respectively, compared to an arithmetic mean of 0.24 l/m{sup 2} hr. The flux values are within the reported range for closed landfills (0.06-0.89 l/m{sup 2} hr), and lower than the reported range for active landfills (0.42-2.46 l/m{sup 2} hr). Simulation results matched field measurements for low methane generation potential (L{sub 0}) values in the range of 19.8-102.6 m{sup 3}/ton of waste. LFG generation dropped rapidly to half its peak level only 4 yrs after landfill closure limiting the sustainability of LFG recovery systems in similar contexts and raising into doubt promoted CDM initiatives for similar waste.

El-Fadel, Mutasem, E-mail: mfadel@aub.edu.lb [Department of Civil and Environmental Engineering, American University of Beirut (Lebanon); Abi-Esber, Layale; Salhab, Samer [Department of Civil and Environmental Engineering, American University of Beirut (Lebanon)

2012-11-15T23:59:59.000Z

114

Int. J. Environment and Pollution, V0/. IS, No.4, 2001 Economic evaluation of a landfill system with gas  

E-Print Network [OSTI]

Int. J. Environment and Pollution, V0/. IS, No.4, 2001 Economic evaluation of a landfill system. Landfill technology, as it is the most widely employed and is regarded as the most suitable and simple and externalities are examined. A cost-benefit analysis of a landfill system with gas recovery (LFSGR) has been

Columbia University

115

A Multimedia Study of Hazardous Waste Landfill Gas Migration  

Science Journals Connector (OSTI)

Hazardous waste landfills pose uniquely challenging environmental problems which arise as a result of the chemical complexity of waste sites, their involvement of many environmental media, and their very size ...

Robert D. Stephens; Nancy B. Ball; Danny M. Mar

1986-01-01T23:59:59.000Z

116

DOE/EA-1624: Environmental Assessment for Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities (December 2008)  

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

Auburn Landfill Gas Electric Generators and Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities Auburn, New York Final Environmental Assessment DOE/EA-1624 Prepared for: U.S. Department of Energy National Energy Technology Laboratory January 2009 INTENTIONALLY LEFT BLANK AUBURN LANDFILL GAS ELECTRIC GENERATORS AND ANAEROBIC DIGESTER ELECTRIC FACILITIES FINAL EA DOE/EA-1624 i Table of Contents 1.0 INTRODUCTION .......................................................................................................................................... 1 1.1 BACKGROUND............................................................................................................................................... 2 1.2 PURPOSE AND NEED ...................................................................................................................................... 4

117

Recovery Act: Brea California Combined Cycle Electric Generating Plant Fueled by Waste Landfill Gas  

SciTech Connect (OSTI)

The primary objective of the Project was to maximize the productive use of the substantial quantities of waste landfill gas generated and collected at the Olinda Landfill near Brea, California. An extensive analysis was conducted and it was determined that utilization of the waste gas for power generation in a combustion turbine combined cycle facility was the highest and best use. The resulting Project reflected a cost effective balance of the following specific sub-objectives: Meeting the environmental and regulatory requirements, particularly the compliance obligations imposed on the landfill to collect, process and destroy landfill gas Utilizing proven and reliable technology and equipment Maximizing electrical efficiency Maximizing electric generating capacity, consistent with the anticipated quantities of landfill gas generated and collected at the Olinda Landfill Maximizing equipment uptime Minimizing water consumption Minimizing post-combustion emissions The Project produced and will produce a myriad of beneficial impacts. o The Project created 360 FTE construction and manufacturing jobs and 15 FTE permanent jobs associated with the operation and maintenance of the plant and equipment. o By combining state-of-the-art gas clean up systems with post combustion emissions control systems, the Project established new national standards for best available control technology (BACT). o The Project will annually produce 280,320 MWhs of clean energy o By destroying the methane in the landfill gas, the Project will generate CO2 equivalent reductions of 164,938 tons annually. The completed facility produces 27.4 MWnet and operates 24 hours a day, seven days a week.

Galowitz, Stephen

2012-12-31T23:59:59.000Z

118

Delivery and viability of landfill gas CDM projects in AfricaA South African experience  

Science Journals Connector (OSTI)

The eThekwini Municipality (Durban, South Africa) landfill gas Clean Development Mechanism (CDM) project was the first to be registered and verified in Africa. The idea for the project was developed in 2002, yet it was not until the end of 2006 that the smaller Component One (1MW) was registered, while the larger Component Two (9MW) followed only in March 2009. Valuable lessons were learnt from Component One, and these were applied to Component Two. The paper describes the Durban CDM process, the lessons learnt, and assesses the viability of landfill gas to electricity CDM projects in Africa. It concludes that small to medium sized landfill gas to electricity CDM projects are not viable in Africa unless there is a renewable energy feed-in-tariff, or unless the gas is simply flared rather than being utilised for power generation.

R. Couth; C. Trois; J. Parkin; L.J. Strachan; A. Gilder; M. Wright

2011-01-01T23:59:59.000Z

119

Development of correction factors for landfill gas emission model suiting Indian condition to predict methane emission from landfills  

Science Journals Connector (OSTI)

Abstract Methane emission from landfill gas emission (LandGEM) model was validated through the results of laboratory scale biochemical methane potential assay. Results showed that LandGEM model over estimates methane (CH4) emissions; and the true CH4 potential of waste depends on the level of segregation. Based on these findings, correction factors were developed to estimate CH4 emission using LandGEM model especially where the level of segregation is negligible or does not exist. The correction factors obtained from the study were 0.94, 0.13 and 0.74 for food waste, mixed un-segregated municipal solid waste (MSW) and vegetable wastes, respectively.

Avick Sil; Sunil Kumar; Jonathan W.C. Wong

2014-01-01T23:59:59.000Z

120

Composition for absorbing hydrogen from gas mixtures  

DOE Patents [OSTI]

A hydrogen storage composition is provided which defines a physical sol-gel matrix having an average pore size of less than 3.5 angstroms which effectively excludes gaseous metal hydride poisons while permitting hydrogen gas to enter. The composition is useful for separating hydrogen gas from diverse gas streams which may have contaminants that would otherwise render the hydrogen absorbing material inactive.

Heung, Leung K. (Aiken, SC); Wicks, George G. (Aiken, SC); Lee, Myung W. (Aiken, SC)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Suitability of Tedlar gas sampling bags for siloxane quantification in landfill gas  

Science Journals Connector (OSTI)

Landfill or digester gas can contain man-made volatile methylsiloxanes (VMS), usually in the range of a few milligrams per normal cubic metre (Nm3). Until now, no standard method for siloxane quantification exists and there is controversy with respect to which sampling procedure is most suitable. This paper presents an analytical and a sampling procedure for the quantification of common VMS in biogas via GCMS and polyvinyl fluoride (Tedlar) bags. Two commercially available Tedlar bag models are studied. One is equipped with a polypropylene valve with integrated septum, the other with a dual port fitting made from stainless steel. Siloxane recovery in landfill gas samples is investigated as a function of storage time, temperature, surface-to-volume ratio and background gas. Recovery was found to depend on the type of fitting employed. The siloxanes sampled in the bag with the polypropylene valve show high and stable recovery, even after more than 30 days. Sufficiently low detection limits below 10?gNm?3 and good reproducibility can be achieved. The method is therefore well applicable to biogas, greatly facilitating sampling in comparison with other common techniques involving siloxane enrichment using sorption media.

M. Ajhar; B. Wens; K.H. Stollenwerk; G. Spalding; S. Yce; T. Melin

2010-01-01T23:59:59.000Z

122

Des Plaines Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Des Plaines Landfill Biomass Facility Jump to: navigation, search Name Des Plaines Landfill Biomass Facility Facility Des Plaines Landfill Sector Biomass Facility Type Landfill Gas...

123

Lessons from Loscoe: the uncontrolled migration of landfill gas  

Science Journals Connector (OSTI)

...was considered of fundamental importance in determining...making the situation safe, even though in...with coal mining operations. In 1983 smells...central heating boiler had been ignited...different landfill operation and completion scenarios...how to improve the operation and engineering...

G. M. Williams; N. Aitkenhead

124

Effects of Landfill Gas on Growth and Nitrogen Fixation of Two Leguminous Trees (Acacia Confusa, Leucaena Leucocephala)  

Science Journals Connector (OSTI)

A study was made on the effects of landfill gas on ARA (acetylene reducing activity) of ... The effects of the three main components of landfill gas, O2, CO2 and CH4, were first measured separately over a 1-hr pe...

Y. S. G. Chan; M. H. Wong; B. A. Whitton

1998-10-01T23:59:59.000Z

125

Performance of an Internal Combustion Engine Operating on Landfill Gas and the Effect of Syngas Addition  

Science Journals Connector (OSTI)

Performance of an Internal Combustion Engine Operating on Landfill Gas and the Effect of Syngas Addition ... The performance of a four-stroke Honda GC160E spark ignition (SI) internal combustion (IC) engine operating on landfill gas (LFG) was investigated, as well as the impact of H2 and CO (syngas) addition on emissions and engine efficiency. ... In addition, variation across both the syngas content (up to 15%) and the ratio of H2 to CO in the syngas (H2/CO = 0.5, 1, and 2) were tested. ...

McKenzie P. Kohn; Jechan Lee; Matthew L. Basinger; Marco J. Castaldi

2011-02-07T23:59:59.000Z

126

The HERMES Polarized Hydrogen Internal Gas Target  

E-Print Network [OSTI]

internal gas targets. The HERMES hydrogen target is an internal polarized gas target using the storage cell frame on the right. atomic hydrogen beam and focuses it into a storage cell. The storage cellThe HERMES Polarized Hydrogen Internal Gas Target J. Stewart for The HERMES Collaboration

127

Tapping Landfill Gas to Provide Significant Energy Savings and Greenhouse Gas Reductions- Case Study, 2013  

Broader source: Energy.gov [DOE]

Case study overviewing two large landfill projects in California and Rhode Island funded by the Recovery Act

128

Property:Building/SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

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

129

Property:Building/SPPurchasedEngyPerAreaKwhM2DigesterLandfillGas | Open  

Open Energy Info (EERE)

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

130

Property:Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

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

131

IEA-Renewable Energy Technologies, Bioenergy Agreement Task 37: Energy from Biogas and Landfill Gas  

E-Print Network [OSTI]

EFP-06 IEA- Renewable Energy Technologies, Bioenergy Agreement Task 37: Energy from Biogas-Bioenergy, Task 37- Energy from Biogas and Landfill Gas", via samarbejde, informationsudveksling, fælles analyser. biogas fra anaerob udrådning (AD) som en integreret gylle og affalds behandlings teknologi. Arbejdet

132

Landfill gas upgrading with pilot-scale water scrubber: Performance assessment with absorption water recycling  

Science Journals Connector (OSTI)

A pilot-scale counter current absorption process for upgrading municipal solid waste (MSW) landfill gas to produce vehicle fuel was studied using absorption, desorption and drying units and water as an absorbent. Continuous water recycling was used without adding new water to the system. The process parameters were defined by a previous study made with this pilot system. The effect of pressure (2025bar), temperature (1025C) and water flow speed (5.511l/min) on the upgrading performance, trace compounds (siloxanes, halogenated compounds) and water quality were investigated. Raw landfill gas flow was kept constant at 7.41Nm3/h. Methane (CH4) and carbon dioxide (CO2) contents in the product gas were 8690% and 4.58.0% with all studied pressures and temperatures. The remaining fraction in product gas was nitrogen (N2) (from 1% to 7%). Organic silicon compounds (siloxanes) were reduced by 16.6% and halogenated compounds similarly by 90.1% by water absorption. From studied process parameters, only water flow speed affected the removal of siloxanes and halogen compounds. The absorbent water pH was between 4.44.9, sulphide concentration between 0.11.0mg/l and carbonate concentration between 5001000mg/l. The product gas drying system reduced the siloxane concentration by 99.1% and halogenated compounds by 99.9% compared to the raw landfill gas. In conclusion, the pilot-scale gas upgrading process studied appears to be able to produce gas with high energy content (approx 8690% methane) using a closed water circulation system. When using a standard gas drying system, all trace compounds can be removed by over 99% compared to raw landfill gas.

J. Lntel; S. Rasi; J. Lehtinen; J. Rintala

2012-01-01T23:59:59.000Z

133

Catalytically upgraded landfill gas as a cost-effective alternative for fuel cells  

Science Journals Connector (OSTI)

The potential use of landfill gas as feeding fuel for the so-called molten carbonate fuel cells (MCFC) imposes the need for new upgrading technologies in order to meet the much tougher feed gas specifications of this type of fuel cells in comparison to gas engines. Nevertheless, MCFC has slightly lower purity demands than low temperature fuel cells. This paper outlines the idea of a new catalytic purification process for landfill gas conditioning, which may be supposed to be more competitive than state-of-the-art technologies and summarises some lab-scale results. This catalytic process transforms harmful landfill gas minor compounds into products that can be easily removed from the gas stream by a subsequent adsorption step. The optimal process temperature was found to be in the range 250400C. After a catalyst screening, two materials were identified, which have the ability to remove all harmful minor compounds from landfill gas. The first material was a commercial alumina that showed a high activity towards the removal of organic silicon compounds. The alumina protects both a subsequent catalyst for the removal of other organic minor compounds and the fuel cell. Due to gradual deactivation caused by silica deposition, the activated alumina needs to be periodically replaced. The second material was a commercial V2O5/TiO2-based catalyst that exhibited a high activity for the total oxidation of a broad spectrum of other harmful organic minor compounds into a simpler compound class acid gases (HCl, HF and SO2), which can be easily removed by absorption with, e.g. alkalised alumina. The encouraging results obtained allow the scale-up of this LFG conditioning process to test it under real LFG conditions.

W. Urban; H. Lohmann; J.I. Salazar Gmez

2009-01-01T23:59:59.000Z

134

Natural Gas Utilities Options Analysis for the Hydrogen Economy...  

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

Natural Gas Utilities Options Analysis for the Hydrogen Economy Natural Gas Utilities Options Analysis for the Hydrogen Economy Presentation by 12-Richards to DOE Hydrogen Pipeline...

135

Evaluation of Natural Gas Pipeline Materials for Hydrogen Science...  

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

Evaluation of Natural Gas Pipeline Materials for Hydrogen Science Evaluation of Natural Gas Pipeline Materials for Hydrogen Science Presentation by 04-Adams to DOE Hydrogen...

136

The Microbial Community of Landfill Soils and the Influence of Landfill Gas on Soil Recovery and Revegetation  

Science Journals Connector (OSTI)

An extensive database for soil microbiological and physicochemical conditions has been established from samples taken from restored landfill sites in South East England. The sites...

Sharon D. Wigfull; Paul Birch

1990-01-01T23:59:59.000Z

137

Instrumentation for the Measurement of Landfill Gas Emissions  

Science Journals Connector (OSTI)

Where problems of gas emission are suspected, the reliable detection and measurement of the gas is essential if solutions to the problem are to be designed, constructed and monitored for their effectiveness. T...

D. Crowhurst

1988-01-01T23:59:59.000Z

138

Mechanics of biocell landfill settlements.  

E-Print Network [OSTI]

??Prediction of landfill gas generation and settlements are of concerns in design and maintenance of biocell landfills. Accurate settlement prediction is essential for design of (more)

Hettiarachchi, Chamil Hiroshan

2005-01-01T23:59:59.000Z

139

Integrated Combined Heat and Power/Advanced Reciprocating Internal Combustion Engine System for Landfill Gas to Power Applications  

Broader source: Energy.gov [DOE]

Landfill gas (LFG), composed largely of methane and carbon dioxide, is used in over 450 operational projects in 43 states. These projects convert a large source of greenhouse gases into a fuel that...

140

Synergies in Natural Gas and Hydrogen Fuels | Department of Energy  

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

Synergies in Natural Gas and Hydrogen Fuels Synergies in Natural Gas and Hydrogen Fuels Presentation by Brian Bonner, Air Products and Chemicals, Inc., at the Natural Gas and...

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

The reduction of greenhouse gas emissions using various thermal systems in a landfill site  

Science Journals Connector (OSTI)

In this paper, the Greenhouse Gas (GHG) emissions from an uncontrolled landfill site filled with Municipal Solid Waste (MSW) are compared with those from controlled sites in which collected Landfill Gases (LFG) are utilised by various technologies. These technologies include flaring, conventional electricity generation technologies such as Internal Combustion Engine (ICE) and Gas Turbine (GT) and an emerging technology, Solid Oxide Fuel Cell (SOFC). The results show that SOFC is the best option for reducing the GHG emissions among the studied technologies. In the case when SOFC is used, GHG emissions from the controlled site are reduced by 63% compared to the uncontrolled site. This case has a specific lifetime GHG emission of 2.38 tonnes CO2 .eq/MWh when only electricity is produced and 1.12 tonnes CO2.eq/MWh for a cogeneration application.

C. Ozgur Colpan; Ibrahim Dincer; Feridun Hamdullahpur

2009-01-01T23:59:59.000Z

142

Natural Gas and Hydrogen Infrastructure Opportunities Workshop  

Broader source: Energy.gov [DOE]

Argonne National Laboratory held a Natural Gas and Hydrogen Infrastructure Opportunities Workshop October 18-19, 2011, in Lemont, Illinois. The workshop objectives were to convene industry and...

143

Natural Gas and Hydrogen Infrastructure Opportunities Workshop...  

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

* Convene industry and other stakeholders to share current statusstate-of-the art for natural gas and hydrogen infrastructure. * Identify key challenges (both technical and...

144

Natural Gas and Hydrogen Infrastructure Opportunities: Markets...  

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

h presentation slides: Natural Gas and hydrogen Infrastructure opportunities: markets and Barriers to Growth Matt Most, Encana Natural Gas 1 OctOber 2011 | ArgOnne nAtiOnAl...

145

Municipal solid waste degradation and landfill gas resources characteristics in self-recirculating sequencing batch bioreactor landfill  

Science Journals Connector (OSTI)

Based on the degradation characteristics of municipal solid waste (MSW) in China, the traditional anaerobic sequencing batch bioreactor landfill (ASBRL) was optimized, and an improved anaerobic sequencing batch b...

Xiao-zhi Zhou ???; Shu-xun Sang ???; Li-wen Cao ???

2012-12-01T23:59:59.000Z

146

Hydrogen gas sensor and method of manufacture  

DOE Patents [OSTI]

A sensor for measuring the pressure of hydrogen gas in a nuclear reactor, and method of manufacturing the same. The sensor comprises an elongated tube of hydrogen permeable material which is connected to a pressure transducer through a feedthrough tube which passes through a wall at the boundary of the region in which hydrogen is present. The tube is pressurized and flushed with hydrogen gas at an elevated temperature during the manufacture of the sensor in order to remove all gasses other than hydrogen from the device.

McKee, John M. (Hinsdale, IL)

1991-01-01T23:59:59.000Z

147

Global methane emissions from landfills: New methodology and annual estimates 19801996  

E-Print Network [OSTI]

Change: Instruments and techniques; KEYWORDS: landfill, landfill gas, methane emissions, methanotrophy

148

In-situ Removal of Hydrogen Sulphide from Landfill Gas.  

E-Print Network [OSTI]

?? This project was compiled in co-operation with the Royal Institute of Technology, Stockholm and Veolia Environmental Services (Australia) at the Woodlawn Bioreactor in NSW, (more)

Lazarevic, David Andrew

2007-01-01T23:59:59.000Z

149

Premixed Combustion of Hydrogen Augmented Natural Gas  

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

Premixed Combustion of Hydrogen Premixed Combustion of Hydrogen Augmented Natural Gas * Lean premixed combustion * Effective for emission reduction with natural gas * High hydrogen flame speed requires care in premixer design for SGH fuels * UC Irvine study quantifies effectiveness of hydrogen augmentation strategy * Lean stability limit improves linearly with hydrogen augmentation * Emissions reduction can be achieved * Two OEM's and the California Energy Commission have used the results to help guide them on adapting to hydrogen fuel UC Irvine Scott Samuelsen / Vince McDonell Project 98-01-SR062 1200 1300 1400 1500 1600 1700 1800 1900 0 10 20 30 40 50 60 Hydrogen Volume in Main Fuel (%) Adiabatic Flame Temperature (K) P0(3/4) High Stability High Stability Low emission Low emission operational zone operational zone

150

Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels, Lesssons...  

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

Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels, Lesssons Learned for the Safe Deployment of Vehicles Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels,...

151

Natural Gas Utilities Options Analysis for the Hydrogen Economy...  

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

Natural Gas Utilities Options Analysis for the Hydrogen Economy Natural Gas Utilities Options Analysis for the Hydrogen Economy Objectives: Identify business opportunities and...

152

Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels, Lesssons...  

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

to ensure safe use of onboard and bulk storage hydrogen and compressed natural gas tanks * Enhance domestic and international harmonization between natural gas and hydrogen...

153

Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel...  

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

Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel Aftertreatment and Other Applications Onboard Plasmatron Generation of Hydrogen rich Gas for Diesel Aftertreatment and...

154

Emerging technologies for the management and utilization of landfill gas. Final report, August 1994-August 1997  

SciTech Connect (OSTI)

The report gives information on emerging technologies that are considered to be commercially available (Tier 1), currently undergoing research and development (Tier 2), or considered as potentially applicable (Tier 3), for the management of landfill gas (LFG) emissions or for the utilization of methane (CH4) and carbon dioxide (CO2) from LFG. The emerging technologies that are considered to be Tier 1 are: (1) phosphoric acid fuel cells, (2) processes for converting CH4 from LFG to compressed LFG for vehicle fuel or other fuel uses, and (3) use of LFG as a fuel source for leachate evaporation systems. The Tier 2 technologies covered in the report are: (1) operation of landfills as anaerobic bioreactors, (2) operation of landfills are aerobic bioreactors, (3) production of ethanol from LFG, (4) production of commercial CO2 from LFG, and (5) use of LFG to provide fuel for heat and CO2 enhancement in greenhouses. Tier 3 technologies, considered as potentially applicable for LFG. include Stirling and Organic Rankine Cycle engines.

Roe, S.; Reisman, J.; Strait, R.; Doorn, M.

1998-02-01T23:59:59.000Z

155

Adsorption characteristics of siloxanes in landfill gas by the adsorption equilibrium test  

SciTech Connect (OSTI)

Highlights: Equilibrium test was attempted to evaluate adsorption characteristics of siloxane. L2 had higher removal efficiency in carbon compared to noncarbon adsorbents. Total adsorption capacity of siloxane was 300 mg/g by coal activated carbon. Adsorption characteristics rely on size of siloxane molecule and adsorbent pore. Conversion of siloxane was caused by adsorption of noncarbon adsorbents. - Abstract: Due to the increase in energy cost by constantly high oil prices and the obligation to reduce greenhouse effect gases, landfill gas is frequently used as an alternative energy source for producing heat and electricity. Most of landfill gas utility facilities, however, are experiencing problems controlling siloxanes from landfill gas as their catalytic oxidizers are becoming fouled by silicon dioxide dust. To evaluate adsorption characteristics of siloxanes, an adsorption equilibrium test was conducted and parameters in the Freundlich and Langmuir isotherms were analyzed. Coconut activated carbon (CA1), coal activated carbon (CA2), impregnated activated carbon (CA3), silicagel (NCA1), and activated alumina (NCA2) were used for the adsorption of the mixed siloxane which contained hexamethyldisiloxane (L2), octamethylcyclotetrasiloxane (D4), and decamethylcyclopentasiloxane (D5). L2 had higher removal efficiency in noncarbon adsorbents compared to carbon adsorbents. The application of Langmuir and Freundlich adsorption isotherm demonstrated that coconut based CA1 and CA3 provided higher adsorption capacity on L2. And CA2 and NCA1 provided higher adsorption capacity on D4 and D5. Based on the experimental results, L2, D4, and D5 were converted by adsorption and desorption in noncarbon adsorbents. Adsorption affinity of siloxane is considered to be affect by the pore size distribution of the adsorbents and by the molecular size of each siloxane.

Nam, Sangchul; Namkoong, Wan [Department of Environmental Engineering, Konkuk University, Hwayang-Dong, Gwangjin-Gu, Seoul 143-701 (Korea, Republic of); Kang, Jeong-Hee; Park, Jin-Kyu [Department of Environmental Engineering, Anyang University, Anyang 5-Dong, Manan-Gu, Anyang-Si, Gyeonggi-Do 430-714 (Korea, Republic of); Lee, Namhoon, E-mail: nhlee@anyang.ac.kr [Department of Environmental Engineering, Anyang University, Anyang 5-Dong, Manan-Gu, Anyang-Si, Gyeonggi-Do 430-714 (Korea, Republic of)

2013-10-15T23:59:59.000Z

156

High-pressure Storage Vessels for Hydrogen, Natural Gas andHydrogen...  

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

Gas and Blends - Materials Testing and Design Requirements for Hydrogen Components and Tanks International Hydrogen Fuel and Pressure Vessel Forum 2010 Proceedings Hydrogen...

157

Passive landfill gas emission Influence of atmospheric pressure and implications for the operation of methane-oxidising biofilters  

Science Journals Connector (OSTI)

A passively vented landfill site in Northern Germany was monitored for gas emission dynamics through high resolution measurements of landfill gas pressure, flow rate and composition as well as atmospheric pressure and temperature. Landfill gas emission could be directly related to atmospheric pressure changes on all scales as induced by the autooscillation of air, diurnal variations and the passage of pressure highs and lows. Gas flux reversed every 20h on average, with 50% of emission phases lasting only 10h or less. During gas emission phases, methane loads fed to a connected methane oxidising biofiltration unit varied between near zero and 247g CH4 h?1m?3 filter material. Emission dynamics not only influenced the amount of methane fed to the biofilter but also the establishment of gas composition profiles within the biofilter, thus being of high relevance for biofilter operation. The duration of the gas emission phase emerged as most significant variable for the distribution of landfill gas components within the biofilter.

Julia Gebert; Alexander Groengroeft

2006-01-01T23:59:59.000Z

158

Synergies in Natural Gas and Hydrogen Fuels  

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

F presentation slides: synergies in Natural Gas and hydrogen Fuels Brian Bonner, Air Products and Chemicals, Inc. 1 OctOber 2011 | ArgOnne nAtiOnAl lAbOrAtOry NG Workshop summary...

159

Pilot scale evaluation of the BABIU process Upgrading of landfill gas or biogas with the use of MSWI bottom ash  

Science Journals Connector (OSTI)

Abstract Biogas or landfill gas can be converted to a high-grade gas rich in methane with the use of municipal solid waste incineration bottom ash as a reactant for fixation of CO2 and H2S. In order to verify results previously obtained at a laboratory scale with 6590kg of bottom ash (BA), several test runs were performed at a pilot scale, using 5001000kg of bottom ash and up to 9.2Nm3/h real landfill gas from a landfill in the Tuscany region (Italy). The input flow rate was altered. The best process performance was observed at a input flow rate of 3.7Nm3/(htBA). At this flow rate, the removal efficiencies for H2S were approximately 99.599%.

P. Mostbauer; L. Lombardi; T. Olivieri; S. Lenz

2014-01-01T23:59:59.000Z

160

Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure  

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

Natural Gas and Natural Gas and Hydrogen Infrastructure Opportunities Workshop to someone by E-mail Share Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on Facebook Tweet about Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on Twitter Bookmark Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on Google Bookmark Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on Delicious Rank Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on Digg Find More places to share Fuel Cell Technologies Office: Natural Gas and Hydrogen Infrastructure Opportunities Workshop on AddThis.com...

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Development of a Compressed Hydrogen Gas  

E-Print Network [OSTI]

Kpsi "Saran Wrap" Tank Energy Density for Hydrogen Storage Systems " Advance the development of a cost · Satisfying hydrogen gas permeation requirements · Increasing energy density efficiency · Developing cost · Design » T700 carbon fiber overwrap with high interspersed winding pattern with design FOS of 2.45 » NGV

162

domestic refuse landfill  

Science Journals Connector (OSTI)

domestic refuse landfill, domestic waste landfill, house waste landfill, house refuse landfill ? Hausmllaufschttung f

2014-08-01T23:59:59.000Z

163

Influence of Landfill Gas on the Microdistribution of Grass Establishment Through Natural Colonization  

Science Journals Connector (OSTI)

Many revegetated landfills have poor cover including bare areas where plants do not grow. This study, on the Bisasar Road Landfill site in South Africa, assessed grass species preferences to microhabitat condi...

Douglas H. Trotter; John A. Cooke

2005-03-01T23:59:59.000Z

164

Natural Gas Utilities Options Analysis for the Hydrogen  

E-Print Network [OSTI]

> Natural Gas Utilities Options Analysis for the Hydrogen Economy Hydrogen Pipeline R&D Project of strategic options for the natural gas industry as hydrogen energy systems evolve ­ Vehicle to encourage of tradeoffs ­ NY state qualifies natural gas-run fuel cells, CA only renewable hydrogen (potential for partial

165

Regenerable Hydrogen Chloride Removal Sorbent and Regenerable Multifunctional Hydrogen Sulfide and Hydrogen Chloride Removal Sorbent for High Temperature Gas Streams  

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

Hydrogen Chloride and Hydrogen Sulfide Hydrogen Chloride and Hydrogen Sulfide Removal Sorbents for High Temperature Gas Streams Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 7,767,000 entitled "Regenerable Hydrogen Chloride Removal Sorbent and Regenerable Multifunctional Hydrogen Sulfide and Hydrogen Chloride Removal Sorbent for High Temperature Gas Streams." Disclosed in this patent is the invention of a unique regenerable sorbent process that can remove contaminants from gas produced by the gasification of fossil fuels. Specifically, the process removes hydrogen chloride by using the regenerable sorbent and simultaneously extracts hydrogen chloride compounds and hydrogen

166

All of Hanford's underground waste tanks generate hydrogen gas...  

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

of Hanford's underground waste tanks generate hydrogen gas to some degree since the radioactivity in the waste releases hydrogen from basic nuclear reactions. The routine release...

167

INTEGRATED CRYOGENIC SYSTEM FOR CO 2 SEPARATION AND LNG PRODUCTION FROM LANDFILL GAS  

Science Journals Connector (OSTI)

An integrated cryogenic system to separate carbon dioxide ( CO 2 ) and produce LNG from landfill gas is investigated and designed. The main objective of this design is to eliminate the requirement of a standard CO 2 removal process in the liquefaction system such distillation or (temperature or pressure) swing adsorption and to directly separate carbon dioxide as frost at the liquefying channel of methane. Two identical sets of heat exchangers are installed in parallel and switched alternatively with a time period so that one is in separation?liquefaction mode while the other is in CO 2 clean?up mode. A thermal regeneration scheme is presented for the purpose of saving energy and avoiding the stoppage of LNG production followed by the flow switching. The switching period is determined from results of a combined heat and mass transfer analysis on the CO 2 freeze?out process.

H. M. Chang; M. J. Chung; S. B. Park

2010-01-01T23:59:59.000Z

168

Natural Gas Utilities Options Analysis for the Hydrogen  

E-Print Network [OSTI]

> Natural Gas Utilities Options Analysis for the Hydrogen Economy Hydrogen Pipeline R&D Project > GTI focuses on energy & environmental issues ­ Specialize on natural gas & hydrogen > Our main Natural Gas Gas Hydrates Kent Perry Executive Director Exploration & Production Technology Distributed

169

(sanitary) landfill  

Science Journals Connector (OSTI)

(sanitary) landfill, landfill(ed) site, refuse dump, garbage dump...Landfills may often release a toxic soup of...] ? Abfalldeponie f [Zur Endlagerung von Abfallstoffen oder von Industrieprodukten al...

2014-08-01T23:59:59.000Z

170

Calcite precipitation in landfills: an essential product of waste stabilization  

Science Journals Connector (OSTI)

...and carbon dioxide observed for landfill gas do not reflect the amount of bicarbonate...reactions within the waste) and landfill gas. Both of these are potentially...Brief summaries of leachate and landfill gas compositions and their evolution...

D. A. C. Manning

171

Chlorofluorocarbons as tracers of landfill leachate in surface and groundwater  

Science Journals Connector (OSTI)

...considerably lower concentrations in landfill gas. CFCs and CCl4 in leachate may...all groundwater, leachate and landfill gas samples were taken on 6 April 2004...at the central site facility. Landfill gas was sampled by attaching a thick...

A. E. Foley; T. C. Atkinson; Y. Zhao

172

Blending Hydrogen into Natural Gas Pipeline Networks: A Review...  

Energy Savers [EERE]

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues The United States has 11...

173

Landfill Gas Conversion to LNG and LCO{sub 2}. Phase II Final Report for January 25, 1999 - April 30, 2000  

SciTech Connect (OSTI)

This report summarizes work on the development of a process to produce LNG (liquefied methane) for heavy vehicle use from landfill gas (LFG) using Acrion's CO{sub 2} wash process for contaminant removal and CO{sub 2} recovery.

Brown, W. R.; Cook, W. J.; Siwajek, L. A.

2000-10-20T23:59:59.000Z

174

Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels  

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

Compressed Natural Gas Compressed Natural Gas and Hydrogen Fuels Workshop to someone by E-mail Share Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on Facebook Tweet about Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on Twitter Bookmark Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on Google Bookmark Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on Delicious Rank Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on Digg Find More places to share Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels Workshop on AddThis.com... Publications Program Publications Technical Publications Educational Publications

175

Electric power generation using a phosphoric acid cell on a municipal solid waste landfill gas stream. Technology verification report, November 1997--July 1998  

SciTech Connect (OSTI)

The report gives results of tests to verify the performance of a landfill gas pretreatment unit (GPU) and a phosphoric acid fuel cell system. The complete system removes contaminants from landfill gas and produces electricity for on-site use or connection to an electric grid. Performance data were collected at two sites determined to be representative of the U.S. landfill market. The Penrose facility, in Los Angeles, CA, was the first test site. The landfill gas at this site represented waste gas recovery from four nearby landfills, consisting primarily of industrial waste material. It produced approximately 3000 scf of gas/minute, and had a higher heating value of 446 Btu/scf at about 44% methane concentration. The second test site, in Groton, CT, was a relatively small landfill, but with greater heat content gas (methane levels were about 57% and the average heating value was 585 Btu/scf). The verification test addressed contaminant removal efficiency, flare destruction efficiency, and the operational capability of the cleanup system, and the power production capability of the fuel cell system.

Masemore, S.; Piccot, S.

1998-08-01T23:59:59.000Z

176

Phase equilibrium conditions for simulated landfill gas hydrate formation in aqueous solutions of tetrabutylammonium nitrate  

Science Journals Connector (OSTI)

Abstract Hydrate phase equilibrium conditions for the simulated landfill gas (LFG) of methane and carbon dioxide (50mol% methane, 50mol% carbon dioxide) were investigated with the pressure range of (1.90 to 13.83)MPa and temperature range of (280.0 to 288.3)K at (0.050, 0.170, 0.340, and 0.394) mass fraction (w) of tetrabutylammonium nitrate (TBANO3). The phase boundary between liquidvaporhydrate (LVH) phases and liquidvapor (LV) phases was determined by employing an isochoric pressure-search method. The phase equilibrium data measured showed that TBANO3 appeared a remarkable promotion effect at w TBANO 3 =0.394, corresponding to TBANO326H2O, but inhibition effect at w TBANO 3 =(0.050, or 0.170) on the semiclathrate hydrate formation. In addition, the application of TBANO3 at 0.340 mass fraction, corresponding to TBANO332H2O, displayed promotion effect at lower pressures (below 6.38MPa) and inhibition effect at higher pressures (above 6.38MPa).

Ling-Li Shi; De-Qing Liang; Dong-Liang Li

2014-01-01T23:59:59.000Z

177

slag landfill  

Science Journals Connector (OSTI)

slag landfill [Context: the impacts of Cu 2+ emissions from the slag landfill to the groundwater were assessed to be...] ? Schlackendeponie f ...

2014-08-01T23:59:59.000Z

178

Metal-modified and vertically aligned carbon nanotube sensors array for landfill gas  

Science Journals Connector (OSTI)

Vertically aligned carbon nanotube (CNT) layers were synthesized on Fe-coated low-cost alumina substrates using radio-frequency plasma enhanced chemical vapour deposition (RF-PECVD) technology. A miniaturized CNT-based gas sensor array was developed for monitoring landfill gas (LFG) at a temperature of 150??C. The sensor array was composed of 4 sensing elements with unmodified CNT, and CNT loaded with 5?nm nominally thick sputtered nanoclusters of platinum (Pt), ruthenium (Ru) and silver (Ag). Chemical analysis of multicomponent gas mixtures constituted of CO2, CH4, H2, NH3, CO and NO2 has been performed by the array sensor responses and pattern recognition based on principal component analysis (PCA). The PCA results demonstrate that the metal-decorated and vertically aligned CNT sensor array is able to discriminate the NO2 presence in the multicomponent mixture LFG. The NO2 gas detection in the mixture LFG was proved to be very sensitive, e.g.: the CNT:Ru sensor shows a relative change in the resistance of 1.50% and 0.55% for NO2 concentrations of 3.3?ppm and 330?ppb dispersed in the LFG, respectively, with a wide NO2 gas concentration range measured from 0.33 to 3.3?ppm, at the sensor temperature of 150??C. The morphology and structure of the CNT networks have been characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. A forest-like nanostructure of vertically aligned CNT bundles in the multi-walled form appeared with a height of about 10 ?m and a single-tube diameter varying in the range of 5?35?nm. The intensity ratio of the Raman spectroscopy D-peak and G-peak indicates the presence of disorder and defects in the CNT networks. The size of the metal (Pt, Ru, Ag) nanoclusters decorating the CNT top surface varies in the range of 5?50?nm. Functional characterization based on electrical charge transfer sensing mechanisms in the metal-modified CNT-chemoresistor array demonstrates high sensitivity by providing minimal sub-ppm level detection, e.g., download up to 100?ppb NO2, at the sensor temperature of 150??C. The gas sensitivity of the CNT sensor array depends on operating temperature, showing a lower optimal temperature of maximum sensitivity for the metal-decorated CNT sensors compared to unmodified CNT sensors. Results indicate that the recovery mechanisms in the CNT chemiresistors can be altered by a rapid heating pulse from room temperature to about 110??C. A comparison of the NO2 gas sensitivity for the chemiresistors based on disorderly networked CNTs and vertically aligned CNTs is also reported. Cross-sensitivity towards relative humidity of the CNT sensors array is investigated. Finally, the sensing properties of the metal-decorated and vertically aligned CNT sensor arrays are promising to monitor gas events in the LFG for practical applications with low power consumption and moderate sensor temperature.

M Penza; R Rossi; M Alvisi; E Serra

2010-01-01T23:59:59.000Z

179

Evalutation of Natural Gas Pipeline Materials and Infrastructure for Hydrogen/Mixed Gas Service  

Broader source: Energy.gov [DOE]

Objectives: To assist DOE-EE in evaluating the feasibility of using the existing natural gas transmission and distribution piping network for hydrogen/mixed gas delivery

180

Natural Gas and Hydrogen Infrastructure Opportunities Workshop  

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

ANL-12/8 ANL-12/8 summAry report Natural Gas and Hydrogen I n f r a s t r u c t u r e O p p O r t u n I t I e s WorksHop October 18-19, 2011 Argonne National Laboratory | Argonne, IL compiled by romesh Kumar & shabbir ahmed february 21, 2012 AckNoWLedGemeNts Active participation by the Workshop attendees is gratefully acknowledged. Special thanks to the plenary speakers for their insightful comments and their help in leading the discussions as panel session moderators, including: Steve Chalk (DOe/ee), Bill Liss (Gas Technology Institute), Brian Bonner (Air Products and Chemicals, Inc.), and

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Evaluation of landfill gas production and emissions in a MSW large-scale Experimental Cell in Brazil  

Science Journals Connector (OSTI)

Landfill gas (LFG) emissions from municipal solid waste (MSW) landfills are an important environmental concern in Brazil due to the existence of several uncontrolled disposal sites. A program of laboratory and field tests was conducted to investigate gas generation in and emission from an Experimental Cell with a 36,659-ton capacity in Recife/PE Brazil. This investigation involved waste characterisation, gas production and emission monitoring, and geotechnical and biological evaluations and was performed using three types of final cover layers. The results obtained in this study showed that waste decomposes 45 times faster in a tropical wet climate than predicted by traditional first-order models using default parameters. This fact must be included when considering the techniques and economics of projects developed in tropical climate countries. The design of the final cover layer and its geotechnical and biological behaviour proved to have an important role in minimising gas emissions to the atmosphere. Capillary and methanotrophic final cover layers presented lower CH4 flux rates than the conventional layer.

Felipe Juc Maciel; Jos Fernando Thom Juc

2011-01-01T23:59:59.000Z

182

Hydrogen-Enhanced Natural Gas Vehicle Program  

SciTech Connect (OSTI)

The project objective is to demonstrate the viability of HCNG fuel (30 to 50% hydrogen by volume and the remainder natural gas) to reduce emissions from light-duty on-road vehicles with no loss in performance or efficiency. The City of Las Vegas has an interest in alternative fuels and already has an existing hydrogen refueling station. Collier Technologies Inc (CT) supplied the latest design retrofit kits capable of converting nine compressed natural gas (CNG) fueled, light-duty vehicles powered by the Ford 5.4L Triton engine. CT installed the kits on the first two vehicles in Las Vegas, trained personnel at the City of Las Vegas (the City) to perform the additional seven retrofits, and developed materials for allowing other entities to perform these retrofits as well. These vehicles were used in normal service by the City while driver impressions, reliability, fuel efficiency and emissions were documented for a minimum of one year after conversion. This project has shown the efficacy of operating vehicles originally designed to operate on compressed natural gas with HCNG fuel incorporating large quantities of exhaust gas recirculation (EGR). There were no safety issues experienced with these vehicles. The only maintenance issue in the project was some rough idling due to problems with the EGR valve and piping parts. Once the rough idling was corrected no further maintenance issues with these vehicles were experienced. Fuel economy data showed no significant changes after conversion even with the added power provided by the superchargers that were part of the conversions. Driver feedback for the conversions was very favorable. The additional power provided by the HCNG vehicles was greatly appreciated, especially in traffic. The drivability of the HCNG vehicles was considered to be superior by the drivers. Most of the converted vehicles showed zero oxides of nitrogen throughout the life of the project using the State of Nevada emissions station.

Hyde, Dan; Collier, Kirk

2009-01-22T23:59:59.000Z

183

Well-to-Wheels analysis of landfill gas-based pathways and their addition to the GREET model.  

SciTech Connect (OSTI)

Today, approximately 300 million standard cubic ft/day (mmscfd) of natural gas and 1600 MW of electricity are produced from the decomposition of organic waste at 519 U.S. landfills (EPA 2010a). Since landfill gas (LFG) is a renewable resource, this energy is considered renewable. When used as a vehicle fuel, compressed natural gas (CNG) produced from LFG consumes up to 185,000 Btu of fossil fuel and generates from 1.5 to 18.4 kg of carbon dioxide-equivalent (CO{sub 2}e) emissions per million Btu of fuel on a 'well-to-wheel' (WTW) basis. This compares with approximately 1.1 million Btu and 78.2 kg of CO{sub 2}e per million Btu for CNG from fossil natural gas and 1.2 million Btu and 97.5 kg of CO{sub 2}e per million Btu for petroleum gasoline. Because of the additional energy required for liquefaction, LFG-based liquefied natural gas (LNG) requires more fossil fuel (222,000-227,000 Btu/million Btu WTW) and generates more GHG emissions (approximately 22 kg CO{sub 2}e /MM Btu WTW) if grid electricity is used for the liquefaction process. However, if some of the LFG is used to generate electricity for gas cleanup and liquefaction (or compression, in the case of CNG), vehicle fuel produced from LFG can have no fossil fuel input and only minimal GHG emissions (1.5-7.7 kg CO{sub 2}e /MM Btu) on a WTW basis. Thus, LFG-based natural gas can be one of the lowest GHG-emitting fuels for light- or heavy-duty vehicles. This report discusses the size and scope of biomethane resources from landfills and the pathways by which those resources can be turned into and utilized as vehicle fuel. It includes characterizations of the LFG stream and the processes used to convert low-Btu LFG into high-Btu renewable natural gas (RNG); documents the conversion efficiencies and losses of those processes, the choice of processes modeled in GREET, and other assumptions used to construct GREET pathways; and presents GREET results by pathway stage. GREET estimates of well-to-pump (WTP), pump-to-wheel (PTW), and WTW energy, fossil fuel, and GHG emissions for each LFG-based pathway are then summarized and compared with similar estimates for fossil natural gas and petroleum pathways.

Mintz, M.; Han, J.; Wang, M.; Saricks, C.; Energy Systems

2010-06-30T23:59:59.000Z

184

Workshop Notes from ""Compressed Natural Gas and Hydrogen Fuels...  

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

Workshop Notes from ""Compressed Natural Gas and Hydrogen Fuels: Lessons Learned for the Safe Deployment of Vehicles"" Workshop, December 10-11, 2009 Workshop Notes from...

185

Distributed Hydrogen Production from Natural Gas: Independent Review Panel Report  

Broader source: Energy.gov [DOE]

Independent review report on the available information concerning the technologies needed for forecourts producing 150 kg/day of hydrogen from natural gas.

186

Distributed Hydrogen Production from Natural Gas: Independent Review  

SciTech Connect (OSTI)

Independent review report on the available information concerning the technologies needed for forecourts producing 150 kg/day of hydrogen from natural gas.

Fletcher, J.; Callaghan, V.

2006-10-01T23:59:59.000Z

187

Byxbee Park Sanitary Landfill Biomass Facility | Open Energy...  

Open Energy Info (EERE)

Facility Facility Byxbee Park Sanitary Landfill Sector Biomass Facility Type Landfill Gas Location Santa Clara County, California Coordinates 37.2938907, -121.7195459...

188

Renewable Energy 32 (2007) 12431257 Methane generation in landfills  

E-Print Network [OSTI]

. Some of the modern regulated landfills attempt to capture and utilize landfill biogas, a renewable collecting landfill biogas worldwide. The landfills that capture biogas in the US collect about 2.6 million. All rights reserved. Keywords: Landfill gas; Renewable energy; Municipal solid waste; Biogas; Methane

Columbia University

189

Development of a Natural Gas-to-Hydrogen Fueling System  

E-Print Network [OSTI]

compressors Reliable & cost effective hydrogen fueling system #12;9 Accomplishments > Comprehensive subsystem> Development of a Natural Gas-to- Hydrogen Fueling System DOE Hydrogen & Fuel Cell Merit Review integrator, fuel processing subsystem ­ FuelMaker Corporation > Maker of high-quality high

190

Renewable Hydrogen: Technology Review and Policy Recommendations for State-Level Sustainable Energy Futures  

E-Print Network [OSTI]

municipal solid waste landfill gas and waste gases fromin Israel, a solar and landfill gas demonstration in Canada,23. Solar-Powered Landfill Gas Conversion in Saskatoon,

Lipman, Timothy; Edwards, Jennifer Lynn; Brooks, Cameron

2006-01-01T23:59:59.000Z

191

An overview of hydrogen gas production from solar energy  

Science Journals Connector (OSTI)

Hydrogen production plays a very important role in the development of hydrogen economy. Hydrogen gas production through solar energy which is abundant, clean and renewable is one of the promising hydrogen production approaches. This article overviews the available technologies for hydrogen generation using solar energy as main source. Photochemical, electrochemical and thermochemical processes for producing hydrogen with solar energy are analyzed from a technological environmental and economical point of view. It is concluded that developments of improved processes for hydrogen production via solar resource are likely to continue in order to reach competitive hydrogen production costs. Hybrid thermochemical processes where hydrocarbons are exclusively used as chemical reactants for the production of syngas and the concentrated solar radiation is used as a heat source represent one of the most promising alternatives: they combine conventional and renewable energy representing a proper transition towards a solar hydrogen economy.

Simon Koumi Ngoh; Donatien Njomo

2012-01-01T23:59:59.000Z

192

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

193

E-Print Network 3.0 - annual international landfill Sample Search...  

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

-end of lifetime average collection efficiencies for international greenhouse gas (GHG) inventories for landfills... t h e U . S i THE IMPORTANCE OF LANDFILL GAS CAPTURE AND...

194

A renewable energy plan for the Oak Grove Sanitary Landfill In Winder, Georgia.  

E-Print Network [OSTI]

??Oak Grove Sanitary Landfill in Winder, Georgia is already refining its landfill gas (LFG) and sending it through the natural gas pipeline. This is more (more)

Hambrick, Tracy L.

2011-01-01T23:59:59.000Z

195

Hydrogen Gas Production from Nuclear Power Plant in Relation to Hydrogen Fuel Cell Technologies Nowadays  

Science Journals Connector (OSTI)

Recently world has been confused by issues of energy resourcing including fossil fuel use global warming and sustainable energy generation. Hydrogen may become the choice for future fuel of combustion engine. Hydrogen is an environmentally clean source of energy to end?users particularly in transportation applications because without release of pollutants at the point of end use. Hydrogen may be produced from water using the process of electrolysis. One of the GEN?IV reactors nuclear projects (HTGRs HTR VHTR) is also can produce hydrogen from the process. In the present study hydrogen gas production from nuclear power plant is reviewed in relation to commercialization of hydrogen fuel cell technologies nowadays.

2010-01-01T23:59:59.000Z

196

Low-NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity...  

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

NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity Fuels - Fact Sheet, 2011 Low-NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity Fuels - Fact Sheet, 2011...

197

Delivery of Hydrogen Produced from Natural Gas  

E-Print Network [OSTI]

for transportation and stationary power. DOE Milestone #12;Hydrogen Delivery Options · Gaseous hydrogen - Pipelines · Materials Development - Repair, smart pipe, liners · Operational Technologies - Compressors, modeling, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areas

198

Natural Gas and Hydrogen Infrastructure Opportunities Workshop Agenda  

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

WORKSHOP OBJECTIVES: * Convene industry and other stakeholders to share current status/state-of-the art for natural gas and hydrogen infrastructure. * Identify key challenges (both technical and non-technical, such as permitting, installation, codes and standards) preventing or delaying the widespread deployment of natural gas and hydrogen infrastructure. Identify synergies between natural gas and hydrogen fuels. * Identify and prioritize opportunities to address the challenges reported above, and determine roles and opportunities for both government and industry stakeholders. TUESDAY, OCTOBER 18, 2011 9:00-10:00 AM Registration and Continental Breakfast 10:00-10:15 AM Welcome n Dr. Peter Littlewood, Argonne Associate Laboratory Director for

199

Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Landfills Convert Landfills Convert Biogas Into Renewable Natural Gas to someone by E-mail Share Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Facebook Tweet about Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Twitter Bookmark Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Google Bookmark Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Delicious Rank Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Digg Find More places to share Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on AddThis.com... May 25, 2013 Landfills Convert Biogas Into Renewable Natural Gas

200

Biological Water Gas Shift DOE Hydrogen, Fuel Cell, and Infrastructure  

E-Print Network [OSTI]

Biological Water Gas Shift DOE Hydrogen, Fuel Cell, and Infrastructure Technologies Program Review was produced from water in a linked cyanobacterial- hydrogenase hybrid system Isolated mutants and cloned 2

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


201

Gaseous fueled vehicles: A role for natural gas and hydrogen  

SciTech Connect (OSTI)

The commercialization of gaseous hydrogen fueled vehicles requires both the development of hydrogen fueled vehicles and the establishment of a hydrogen fueling infrastructure. These requirements create a classic chicken and egg scenario in that manufacturers will not build and consumers will not buy vehicles without an adequate refueling infrastructure and potential refueling station operators will not invest the needed capital without an adequate market to serve. One solution to this dilemma is to create a bridging strategy whereby hydrogen is introduced gradually via another carrier. The only contending alternative fuel that can act as a bridge to hydrogen fueled vehicles is natural gas. To explore this possibility, IGT is conducting emission tests on its dedicated natural gas vehicle (NGV) test platform to determine what, if any, effects small quantities of hydrogen have on emissions and performance. Furthermore, IGT is actively developing an adsorbent based low-pressure natural gas storage system for NGV applications. This system has also shown promise as a storage media for hydrogen. A discussion of our research results in this area will be presented. Finally, a review of IGT's testing facility will be presented to indicate our capabilities in conducted natural gas/hydrogen vehicle (NGHV) research. 3 refs., 10 figs.

Blazek, C.F.; Jasionowski, W.J.

1991-01-01T23:59:59.000Z

202

A High Density Polarized Hydrogen Gas Target for Storage Rings  

E-Print Network [OSTI]

A High Density Polarized Hydrogen Gas Target for Storage Rings K. Zapfe \\Lambday , B. Braun z , H of gaseous polarized hydrogen was formed by injecting polarized H atoms (produced by Stern­Gerlach spin separation) into a storage cell consisting of a cylindrical tube open at both ends. The target was placed

203

Evaluation of Natural Gas Pipeline Materials for Hydrogen Science  

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

Thad M. Adams Thad M. Adams Materials Technology Section Savannah River National Laboratory DOE Hydrogen Pipeline R&D Project Review Meeting January 5-6, 2005 Evaluation of Natural Gas Pipeline Materials for Hydrogen Service Hydrogen Technology at the Savannah Hydrogen Technology at the Savannah River Site River Site * Tritium Production/Storage/Handling and Hydrogen Storage/Handling since 1955 - Designed, built and currently operate world's largest metal hydride based processing facility (RTF) - DOE lead site for tritium extraction/handling/separation/storage operations * Applied R&D provided by Savannah River National Laboratory - Largest hydrogen R&D staff in country * Recent Focus on Related National Energy Needs - Current major effort on hydrogen energy technology

204

(sanitary) landfill reclamation  

Science Journals Connector (OSTI)

(sanitary) landfill reclamation, reclamation of (sanitary) landfills [For industrial and commercial development] ? Deponielandgewinnung f, Kippenlandgewinnung

2014-08-01T23:59:59.000Z

205

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

Broader source: Energy.gov [DOE]

This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipelines.

206

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

Fuel Cell Technologies Publication and Product Library (EERE)

This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipeline

207

Fuel Cell Technologies Office: Compressed Natural Gas and Hydrogen Fuels  

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

Compressed Natural Gas and Hydrogen Fuels Workshop Compressed Natural Gas and Hydrogen Fuels Workshop Fuel experts from China, India, and the United States shared lessons learned about deploying CNG- and hydrogen-fueled vehicles in public transit fleets and the consumer sector at the Compressed Natural Gas and Hydrogen Fuels: Lessons Learned for the Safe Deployment of Vehicles workshop. The U.S. Department of Energy (DOE) and the U.S. Department of Transportation (DOT) hosted the workshop on December 10-11, 2009. Here you'll find information about the workshop's focus, agenda and notes, and presentations. Some of the following documents are available as Adobe Acrobat PDFs. Download Adobe Reader. Focus of the Workshop The workshop aimed to: Compare fuel properties-including blends-industries, and applications (e.g., product specifications, tanks, reliability, safety procedures, risk mitigation, and dispensing)

208

Method for making hydrogen rich gas from hydrocarbon fuel  

DOE Patents [OSTI]

A method of forming a hydrogen rich gas from a source of hydrocarbon fuel in which the hydrocarbon fuel contacts a two-part catalyst comprising a dehydrogenation portion and an oxide-ion conducting portion at a temperature not less than about 400 C for a time sufficient to generate the hydrogen rich gas while maintaining CO content less than about 5 volume percent. There is also disclosed a method of forming partially oxidized hydrocarbons from ethanes in which ethane gas contacts a two-part catalyst comprising a dehydrogenation portion and an oxide-ion conducting portion for a time and at a temperature sufficient to form an oxide. 4 figs.

Krumpelt, M.; Ahmed, S.; Kumar, R.; Doshi, R.

1999-07-27T23:59:59.000Z

209

Method for making hydrogen rich gas from hydrocarbon fuel  

DOE Patents [OSTI]

A method of forming a hydrogen rich gas from a source of hydrocarbon fuel in which the hydrocarbon fuel contacts a two-part catalyst comprising a dehydrogenation portion and an oxide-ion conducting portion at a temperature not less than about 400.degree. C. for a time sufficient to generate the hydrogen rich gas while maintaining CO content less than about 5 volume percent. There is also disclosed a method of forming partially oxidized hydrocarbons from ethanes in which ethane gas contacts a two-part catalyst comprising a dehydrogenation portion and an oxide-ion conducting portion for a time and at a temperature sufficient to form an oxide.

Krumpelt, Michael (Naperville, IL); Ahmed, Shabbir (Bolingbrook, IL); Kumar, Romesh (Naperville, IL); Doshi, Rajiv (Downers Grove, IL)

1999-01-01T23:59:59.000Z

210

Analyzing Natural Gas Based Hydrogen Infrastructure - Optimizing Transitions from Distributed to Centralized H2 Production  

E-Print Network [OSTI]

50% of daily production H 2 gas storage costs (separate fromNatural gas is currently the lowest cost hydrogen productioncosts are calculated for each station. On-site natural gas steam reformers The hydrogen production

Yang, Christopher; Ogden, Joan M

2005-01-01T23:59:59.000Z

211

Natural Gas Utilities Options Analysis for the Hydrogen Economy  

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

6 January 2005 6 January 2005 Oak Ridge National Laboratory Oak Ridge, TN Mark E. Richards Manager, Advanced Energy Systems 2 Gas Technology Institute > GTI is an independent non-profit R&D organization > GTI focuses on energy & environmental issues - Specialize on natural gas & hydrogen > Our main facility is an 18- acre campus near Chicago - Over 350,000 ft 2 GTI's Main Research Facility GTI's Energy & Environmental Technology Center 3 GTI RD&D Organization Robert Stokes Vice-President Research & Deployment Hydrogen Fuel Processing Low-Temperature Fuel Cells High-Temperature Fuel Cells Vehicle Fuel Infrastructure Gerry Runte Executive Director Hydrogen Energy Systems Gasification & Hot Gas Cleanup Process Engineering Thermal Waste Stabilization

212

Flashback Detection Sensor for Hydrogen Augmented Natural Gas Combustion  

SciTech Connect (OSTI)

The use of hydrogen augmented fuel is being investigated by various researchers as a method to extend the lean operating limit, and potentially reduce thermal NOx formation in natural gas fired lean premixed (LPM) combustion systems. The resulting increase in flame speed during hydrogen augmentation, however, increases the propensity for flashback in LPM systems. Real-time in-situ monitoring of flashback is important for the development of control strategies for use of hydrogen augmented fuel in state-of-the-art combustion systems, and for the development of advanced hydrogen combustion systems. The National Energy Technology Laboratory (NETL) and Woodward Industrial Controls are developing a combustion control and diagnostics sensor (CCADS), which has already been demonstrated as a useful sensor for in-situ monitoring of natural gas combustion, including detection of important combustion events such as flashback and lean blowoff. Since CCADS is a flame ionization sensor technique, the low ion concentration produced in pure hydrogen combustion raises concerns of whether CCADS can be used to monitor flashback in hydrogen augmented combustion. This paper discusses CCADS tests conducted at 0.2-0.6 MPa (2-6 atm), demonstrating flashback detection with fuel compositions up to 80% hydrogen (by volume) mixed with natural gas. NETLs Simulation Validation (SimVal) combustor offers full optical access to pressurized combustion during these tests. The CCADS data and high-speed video show the reaction zone moves upstream into the nozzle as the hydrogen fuel concentration increases, as is expected with the increased flame speed of the mixture. The CCADS data and video also demonstrate the opportunity for using CCADS to provide the necessary in-situ monitor to control flashback and lean blowoff in hydrogen augmented combustion applications.

Thornton, J.D.; Chorpening, B.T.; Sidwell, T.; Strakey, P.A.; Huckaby, E.D.; Benson, K.J. (Woodward)

2007-05-01T23:59:59.000Z

213

E-Print Network 3.0 - atomic hydrogen gas Sample Search Results  

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

and Fuel Summary: : Physical storage of compressed hydrogen gas in high pressure tanks (up to 700 bar); Physical storage... of a material either as hydrogen molecules (H2...

214

Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas  

SciTech Connect (OSTI)

To make the coal-to-hydrogen route economically attractive, improvements are being sought in each step of the process: coal gasification, water-carbon monoxide shift reaction, and hydrogen separation. This report addresses the use of membranes in the hydrogen separation step. The separation of hydrogen from synthesis gas is a major cost element in the manufacture of hydrogen from coal. Separation by membranes is an attractive, new, and still largely unexplored approach to the problem. Membrane processes are inherently simple and efficient and often have lower capital and operating costs than conventional processes. In this report current ad future trends in hydrogen production and use are first summarized. Methods of producing hydrogen from coal are then discussed, with particular emphasis on the Texaco entrained flow gasifier and on current methods of separating hydrogen from this gas stream. The potential for membrane separations in the process is then examined. In particular, the use of membranes for H{sub 2}/CO{sub 2}, H{sub 2}/CO, and H{sub 2}/N{sub 2} separations is discussed. 43 refs., 14 figs., 6 tabs.

Not Available

1986-02-01T23:59:59.000Z

215

Gas storage materials, including hydrogen storage materials  

DOE Patents [OSTI]

A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

2014-11-25T23:59:59.000Z

216

COMBUSTIVE APPROACH FOR MEASURING TOTAL VOLATILE PHOSPHORUS CONTENT IN LANDFILL GAS  

Science Journals Connector (OSTI)

A technique was developed to measure the total gaseous phosphorus content in biogas. The amount of air needed for a neutral to oxidising flame was mixed with the biogas. The gas mixture was burnt in a closed quar...

JORIS ROELS; FRANK VANHAECKE; WILLY VERSTRAETE

2005-02-01T23:59:59.000Z

217

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

SciTech Connect (OSTI)

The United States has 11 distinct natural gas pipeline corridors: five originate in the Southwest, four deliver natural gas from Canada, and two extend from the Rocky Mountain region. This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipelines.

Melaina, M. W.; Antonia, O.; Penev, M.

2013-03-01T23:59:59.000Z

218

Landfill Bioreactors  

Science Journals Connector (OSTI)

Modern waste disposal has evolved from open dumping to the current practice of sanitary landfilling. Although this approach has proved to be a good alternative for preventing a variety of negative human healt...

Dr. J. Patrick A. Hettiaratchi PhD; PEng

2012-01-01T23:59:59.000Z

219

R&D Research/Demonstration Greenhouse Using Methane Gas from a Landfill for Co-Generation  

Science Journals Connector (OSTI)

A research/demonstration greenhouse for the production of greenhouse tomatoes using the single truss tomato production ... from landfills or other sources for heating and lighting to maximize crop production whil...

William J. Roberts

1997-01-01T23:59:59.000Z

220

(sanitary) landfill operator  

Science Journals Connector (OSTI)

(sanitary) landfill operator, Mllkippenbetreiber m, Mlldeponiebetreiber, Kippenbetreiber, Deponiebetreiber

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Dynamic gas bearing turbine technology in hydrogen plants  

Science Journals Connector (OSTI)

Dynamic Gas Bearing Turbines - although applied for helium refrigerators and liquefiers for decades - experienced limitations for hydrogen applications due to restrictions in axial bearing capacity. With a new design concept for gas bearing turbines developed in 2004 axial bearing capacity was significantly improved enabling the transfer of this technology to hydrogen liquefiers. Prior to roll-out of the technology to industrial plants the turbine bearing technology passed numerous tests in R&D test benches and subsequently proved industrial scale demonstration at Linde Gas' hydrogen liquefier in Leuna Germany. Since its installation this turbine has gathered more than 16 000 successful operating hours and has outperformed its oil bearing brother in terms of performance maintainability as well as reliability. The present paper is based on Linde Kryotechnik AG's paper published in the proceedings of the CEC 2009 concerning the application of Dynamic Gas Bearing Turbines in hydrogen applications. In contrast to the former paper this publication focuses on the steps towards final market launch and more specifically on the financial benefits of this turbine technology both in terms of capital investment as well as operating expenses.

Klaus Ohlig; Stefan Bischoff

2012-01-01T23:59:59.000Z

222

Ignition Delay Times of Natural Gas/Hydrogen Blends at Elevated Pressures  

E-Print Network [OSTI]

Applications of natural gases that contain high levels of hydrogen have become a primary interest in the gas turbine market. For reheat gas turbines, understanding of the ignition delay times of high-hydrogen natural gases is important for two...

Brower, Marissa

2012-10-19T23:59:59.000Z

223

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

SciTech Connect (OSTI)

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

Don Augenstein

1999-01-11T23:59:59.000Z

224

High-pressure Storage Vessels for Hydrogen, Natural Gas and Hydrogen-Natural Gas Blends  

Broader source: Energy.gov [DOE]

These slides were presented at the International Hydrogen Fuel and Pressure Vessel Forum on September 27 29, 2010, in Beijing, China.

225

Natural Gas and Hydrogen Infrastructure Opportunities: Markets and Barriers to Growth  

Broader source: Energy.gov [DOE]

Presentation by Matt Most, Encana Natural Gas, at the Natural Gas and Hydrogen Infrastructure Opportunities Workshop held October 18-19, 2011, in Lemont, Illinois.

226

Low-NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity Fuels- Fact Sheet, 2011  

Broader source: Energy.gov [DOE]

Factsheet summarizing how this project will modify a gas turbine combustion system to operate on hydrogen-rich opportunity fuels

227

SAFETY OF HYDROGEN/NATURAL GAS MIXTURES BY PIPELINES: ANR FRENCH PROJECT HYDROMEL  

E-Print Network [OSTI]

1 SAFETY OF HYDROGEN/NATURAL GAS MIXTURES BY PIPELINES: ANR FRENCH PROJECT HYDROMEL Hébrard, J.1 linked with Hydrogen/Natural gas mixtures transport by pipeline, the National Institute of Industrial scenario, i.e. how the addition of a quantity of hydrogen in natural gas can increase the potential

Boyer, Edmond

228

Control of Natural Gas Catalytic Partial Oxidation for Hydrogen Generation in Fuel Cell Applications1  

E-Print Network [OSTI]

Control of Natural Gas Catalytic Partial Oxidation for Hydrogen Generation in Fuel Cell Ghosh3 , Huei Peng2 Abstract A fuel processor that reforms natural gas to hydrogen-rich mixture to feed of the hydrogen in the fuel processor is based on catalytic partial oxidation of the methane in the natural gas

Peng, Huei

229

Hydrogen and Hydrogen/Natural Gas Station and Vehicle Operations - 2006 Summary Report  

SciTech Connect (OSTI)

This report is a summary of the operations and testing of internal combustion engine vehicles that were fueled with 100% hydrogen and various blends of hydrogen and compressed natural gas (HCNG). It summarizes the operations of the Arizona Public Service Alternative Fuel Pilot Plant, which produces, compresses, and dispenses hydrogen fuel. Other testing activities, such as the destructive testing of a CNG storage cylinder that was used for HCNG storage, are also discussed. This report highlights some of the latest technology developments in the use of 100% hydrogen fuels in internal combustion engine vehicles. Reports are referenced and WWW locations noted as a guide for the reader that desires more detailed information. These activities are conducted by Arizona Public Service, Electric Transportation Applications, the Idaho National Laboratory, and the U.S. Department of Energys Advanced Vehicle Testing Activity.

Francfort; Donald Karner; Roberta Brayer

2006-09-01T23:59:59.000Z

230

Evaluation of air injection and extraction tests in a landfill site in Korea: implications for landfill management  

Science Journals Connector (OSTI)

Air extraction and injection were evaluated for extracting hazardous landfill gas and enhancing degradation of organic materials in a landfill in Korea. From the pilot and full ... pressure radius of influence wa...

J. Lee; C. Lee; K. Lee

2002-11-01T23:59:59.000Z

231

WATER-GAS SHIFT WITH INTEGRATED HYDROGEN SEPARATION PROCESS  

SciTech Connect (OSTI)

Optimization of the water-gas shift (WGS) reaction system for hydrogen production for fuel cells is of particular interest to the energy industry. To this end, it is desirable to couple the WGS reaction to hydrogen separation using a semi-permeable membrane, with both processes carried out at high temperatures to improve reaction kinetics and permeation. Reduced equilibrium conversion of the WGS reaction at high temperatures is overcome by product H{sub 2} removal via the membrane. This project involves fundamental research and development of novel cerium oxide-based catalysts for the water-gas-shift reaction and the integration of these catalysts with Pd-alloy H{sub 2}-separation membranes supplying high purity hydrogen for fuel cell use. Conditions matching the requirements of coal gasifier-exit gas streams will be examined in the project. The first-year screening studies of WGS catalysts identified Cu-ceria as the most promising high-temperature shift catalyst for integration with H{sub 2}-selective membranes. Formulations containing iron oxide were found to deactivate in the presence of CO{sub 2}, and were thus eliminated from further consideration. Cu-containing ceria catalysts, on the other hand, showed high stability in CO{sub 2}-rich gases. This type gas will be present over much of the catalyst, as the membrane removes the hydrogen produced from the shift reaction. Several catalyst formulations were prepared, characterized and tested in the first year of study. Details from the catalyst development and testing work were given in our first annual technical report. Hydrogen permeation through Pd and Pd-alloy foils was investigated in a small membrane reactor constructed during the first year of the project. The effect of temperature on the hydrogen flux through pure Pd, Pd{sub 60}Cu{sub 40} and Pd{sub 75}Ag{sub 25} alloy membranes, each 25 {micro}m thick, was evaluated in the temperature range from 250 C to 500 C at upstream pressure of 4.4 atm and permeate hydrogen pressure of 1 atm. Flux decay was observed for the Pd-Cu membrane above 500 C. From 350-450 C, an average hydrogen flux value of 0.2 mol H{sub 2}/m{sup 2}/s was measured over this Pd-alloy membrane. These results are in good agreement with literature data. In this year's report, we discuss reaction rate measurements, optimization of catalyst kinetics by proper choice of dopant oxide (lanthana) in ceria, long-term stability studies, and H{sub 2} permeation data collected with unsupported flat, 10 {micro}m-thick Pd-Cu membranes over a wide temperature window and in various gas mixtures. The high-temperature shift catalyst composition was further improved, by proper selection of dopant type and amount. The formulation 10 at%Cu-Ce(30 at%La)Ox was the best; this was selected for further kinetic studies. WGS reaction rates were measured in a simulated coal-gas mixture. The stability of catalyst performance was examined in 40-hr long tests. A series of hydrogen permeation tests were conducted in a small flat-membrane reactor using the 10 m{micro}-thick Pd-Cu membranes. Small inhibitory effects of CO and CO{sub 2} were found at temperatures above 350 C, while H{sub 2}O vapor had no effect on hydrogen permeation. No carbon deposition took place during many hours of membrane operation. The reaction extent on the blank (catalyst-free) membrane was also negligible. A larger flat-membrane reactor will be used next year with the catalyst wash coated on screens close coupled with the Pd-Cu membrane.

Maria Flytzani-Stephanopoulos, PI; Jerry Meldon, Co-PI; Xiaomei Qi

2002-12-01T23:59:59.000Z

232

Estimating Policy-Driven Greenhouse Gas Emissions Trajectories in California: The California Greenhouse Gas Inventory Spreadsheet (GHGIS) Model  

E-Print Network [OSTI]

decision support tool for landfill gas-to energy projects,industrial emissions e. Landfills f. Solid waste treatmentreductions Forests, dairy, landfills 75% overall savings HFC

Greenblatt, Jeffery B.

2014-01-01T23:59:59.000Z

233

Ground Gas Handbook  

Science Journals Connector (OSTI)

...pathways of least resistance to gas transport, and applications are discussed, such as migrating landfill gas emissions, also from leaking landfill gas collection systems, as well as natural gas and oil-field gas leakage from abandoned production...

Allen W Hatheway

234

High-Frequency Gas Discharge Plasma in Hydrogen  

Science Journals Connector (OSTI)

The high-frequency electric field required to maintain a hydrogen plasma has been measured as a function of pressure and plasma electron density. A theory of the plasma based on a solution of the Boltzmann transport equation has been developed to predict this field; it agrees satisfactorily with experiment. The theory has no adjustable parameters, and uses only the probabilities of collision, excitation, and ionization of the gas by electrons, and the ionic mobility.

David J. Rose and Sanborn C. Brown

1955-04-15T23:59:59.000Z

235

The selective adsorption of hydrogen sulfide from natural gas streams  

E-Print Network [OSTI]

, and Mr. Ovid Baker of Magnolia Petroleum Company. The author also wishes to thank the Linde Company for ths Molecular Sieve type adsorbents and technical information on the same. He also wishes to thank Mr. R. D. Henley and We Magnolia Petroleum... Effect of Water Vapor on Adsorptive Capacity of Bed. 31 Table VI Abbreviated Comparison of Adsorbents. 32 INTRODUCTIOM INTRODUC TION The separation of mercaptans and hydrogen sulfide from natural gas produced from sour reservoirs is a problem which...

Fails, James Clayton

2012-06-07T23:59:59.000Z

236

DEVELOPMENT OF A NATURAL GAS TO HYDROGEN FUEL STATION William E. Liss  

E-Print Network [OSTI]

DEVELOPMENT OF A NATURAL GAS TO HYDROGEN FUEL STATION William E. Liss P: 847-768-0753; E: william hurdles facing on-board liquid fuel reforming. This program leverages efforts to develop natural gas for compressed natural gas vehicles. The integrated natural gas-to-hydrogen system includes a high efficiency

237

The world's largest landfill  

Science Journals Connector (OSTI)

The world's largest landfill ... GeoChip-Based Analysis of Microbial Functional Gene Diversity in a Landfill Leachate-Contaminated Aquifer ... GeoChip-Based Analysis of Microbial Functional Gene Diversity in a Landfill Leachate-Contaminated Aquifer ...

Joseph M. Suflita; Charles P. Gerba; Robert K. Ham; Anna C. Palmisano; William L. Rathje; Joseph A. Robinson

1992-08-01T23:59:59.000Z

238

Silica membranes for hydrogen separation from coal gas. Final report  

SciTech Connect (OSTI)

This project is a continuation of a previous DOE-UCR project (DE-FG22- 89PC89765) dealing with the preparation of silica membranes highly permselective to hydrogen at elevated temperatures, suitable for hydrogen separation from coal gas. The membranes prepared in the previous project had very high selectivity but relatively low permeance. Therefore, the general objectives of this project were to improve the permeance of these membranes and to obtain fundamental information about membrane structure and properties. The specific objectives were: (1) to explore new silylation reagents and reaction conditions with the purpose of reducing the thickness and increasing the permeance of silica membranes prepared by chemical vapor deposition (CVD), (2) to characterize the membrane structure, (3) to delineate mechanism and kinetics of deposition, (4) to measure the permeability of silica layers at different extents of deposition, and (5) to mathematically model the relationship between structure and deposition kinetics.

Gavalas, G.R.

1996-01-01T23:59:59.000Z

239

Method of generating hydrogen gas from sodium borohydride  

DOE Patents [OSTI]

A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or ruthenium. The micro-disperse particles can have a substantially uniform diameter of 1-10 microns, and preferably about 3-5 microns. Ruthenium or cobalt catalytic nanoparticles can be incorporated in the micro-disperse particles of sodium borohydride, which allows a rapid and complete reaction to occur without the problems associated with caking and scaling of the surface by the reactant product sodium metaborate. A closed loop water management system can be used to recycle wastewater from a PEM fuel cell to supply water for reacting with the micro-disperse particles of sodium borohydride in a compact hydrogen gas generator. Capillary forces can wick water from a water reservoir into a packed bed of micro-disperse fuel particles, eliminating the need for using an active pump.

Kravitz, Stanley H. (Placitas, NM); Hecht, Andrew M. (Sandia Park, NM); Sylwester, Alan P. (Albuquerque, NM); Bell, Nelson S. (Albuquerque, NM)

2007-12-11T23:59:59.000Z

240

Semi-pilot scale test for production of hydrogen-rich fuel gas from different wastes by means of a gasification and smelting process with oxygen multi-blowing  

Science Journals Connector (OSTI)

In Europe, most wastes are deposited in landfills, but a European Council directive has called for a 30% reduction of the landfill amount. Though the cement industry commonly burns waste as an alternative fuel together with fossil fuel (so-called waste co-incineration), it is necessary to reconsider this co-incineration from the viewpoints of sustainable development and cement quality. Gasification and smelting processes (GSPs) for waste can convert waste to slag and fuel gas, which can be used by the energy sector and industry, so these processes are desirable in that they provide wide social benefit. Considering its low environmental impact and good economic performance, a GSP that uses a one-process furnace and oxygen multi-blowing was tested on a semi-pilot scale (1.7 tons/day) to convert different wastes (municipal waste, plastic waste and refuse of polyvinyl chloride with a chlorine content of 48%) to slag and hydrogen-rich fuel gas. The results show that the techniques applied in this test increase the quality of the produced fuel gas, strictly control pollutants, and prolong the life of the plant. Furthermore, the tested GSP has the potential to be linked with a hydrogen-based system through its production of hydrogen-rich fuel gas.

R. Kikuchi; H. Sato; Y. Matsukura; T. Yamamoto

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Hydrogenation of Hexene-1 by Gas Phase Spillover Hydrogen. Influence of Substances Added in the Reaction Chamber, Without Contact to the Catalyst  

Science Journals Connector (OSTI)

The activation and reaction zone in a gas phase hydrogen spillover experiment were separated by a frit as in [1]. In the activation zone hydrogen was activated by a Pt/Al2O3 catalyst, the activated hydrogen react...

E. Baumgarten; R. Krupp

2000-05-01T23:59:59.000Z

242

Landfill Methane Project Development Handbook | Open Energy Information  

Open Energy Info (EERE)

Landfill Methane Project Development Handbook Landfill Methane Project Development Handbook Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Landfill Methane Project Development Handbook Agency/Company /Organization: United States Environmental Protection Agency Sector: Climate, Energy Focus Area: Biomass, - Landfill Gas Phase: Determine Baseline, Evaluate Options, Get Feedback Resource Type: Guide/manual User Interface: Website Website: www.epa.gov/lmop/publications-tools/handbook.html Cost: Free References: Project Development Handbook[1] The handbook describes the process of implementing a waste-to-energy landfill gas project. Overview "Approximately 250 million tons of solid waste was generated in the United States in 2008 with 54 percent deposited in municipal solid waste (MSW)

243

DOE Hydrogen and Fuel Cells Program Record 12024: Hydrogen Production Cost Using Low-Cost Natural Gas  

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

2024 Date: September 19, 2012 2024 Date: September 19, 2012 Title: Hydrogen Production Cost Using Low-Cost Natural Gas Originator: Sara Dillich, Todd Ramsden & Marc Melaina Approved by: Sunita Satyapal Date: September 24, 2012 Item: Hydrogen produced and dispensed in distributed facilities at high-volume refueling stations using current technology and DOE's Annual Energy Outlook (AEO) 2009 projected prices for industrial natural gas result in a hydrogen levelized cost of $4.49 per gallon-gasoline-equivalent (gge) (untaxed) including compression, storage and dispensing costs. The hydrogen production portion of this cost is $2.03/gge. In comparison, current analyses using low-cost natural gas with a price of $2.00 per MMBtu can decrease the hydrogen levelized cost to $3.68 per gge (untaxed) including

244

Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles  

Broader source: Energy.gov [DOE]

Agenda for the Transitioning the Transportation Sector--Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles workshop held September 9, 2014.

245

Overview of Two Hydrogen Energy Storage Studies: Wind Hydrogen in California and Blending in Natural Gas Pipelines (Presentation)  

SciTech Connect (OSTI)

This presentation provides an overview of two NREL energy storage studies: Wind Hydrogen in California: Case Study and Blending Hydrogen Into Natural Gas Pipeline Networks: A Review of Key Issues. The presentation summarizes key issues, major model input assumptions, and results.

Melaina, M. W.

2013-05-01T23:59:59.000Z

246

UNFCCC-Consolidated baseline and monitoring methodology for landfill...  

Open Energy Info (EERE)

TOOL Name: UNFCCC-Consolidated baseline and monitoring methodology for landfill gas project activities AgencyCompany Organization: United Nations Framework Convention on...

247

WATER-GAS SHIFT WITH INTEGRATED HYDROGEN SEPARATION PROCESS  

SciTech Connect (OSTI)

This project involved fundamental research and development of novel cerium oxide-based catalysts for the water-gas-shift reaction and the integration of these catalysts with Pd-alloy H{sub 2} -separation membranes supplying high purity hydrogen for fuel cell use. Conditions matching the requirements of coal gasifier-exit gas streams were examined in the project. Cu-cerium oxide was identified as the most promising high-temperature water-gas shift catalyst for integration with H{sub 2}-selective membranes. Formulations containing iron oxide were found to deactivate in the presence of CO{sub 2}. Cu-containing ceria catalysts, on the other hand, showed high stability in CO{sub 2}-rich gases. This type gas will be present over much of the catalyst, as the membrane removes the hydrogen produced from the shift reaction. The high-temperature shift catalyst composition was optimized by proper selection of dopant type and amount in ceria. The formulation 10at%Cu-Ce(30at%La)O{sub x} showed the best performance, and was selected for further kinetic studies. WGS reaction rates were measured in a simulated coal-gas mixture. The apparent activation energy, measured over aged catalysts, was equal to 70.2 kJ/mol. Reaction orders in CO, H{sub 2}O, CO{sub 2} and H{sub 2} were found to be 0.8, 0.2, -0.3, and -0.3, respectively. This shows that H{sub 2}O has very little effect on the reaction rate, and that both CO{sub 2} and H{sub 2} weakly inhibit the reaction. Good stability of catalyst performance was found in 40-hr long tests. A flat (38 cm{sup 2}) Pd-Cu alloy membrane reactor was used with the catalyst washcoated on oxidized aluminum screens close coupled with the membrane. To achieve higher loadings, catalyst granules were layered on the membrane itself to test the combined HTS activity/ H{sub 2} -separation efficiency of the composite. Simulated coal gas mixtures were used and the effect of membrane on the conversion of CO over the catalyst was evidenced at high space velocities. Equilibrium CO conversion at 400 C was measured at a space velocity of 30,000 h{sup -1} with the 10{micro}m- thick Pd{sub 60}Cu{sub 40} membrane operating under a pressure differential of 100 psi. No carbon deposition took place during operation. The performance of the coupled Cu-ceria catalyst/membrane system at 400 C was stable in {approx} 30 h of continuous operation. The overall conclusion from this project is that Cu-doped ceria catalysts are suitable for use in high-temperature water-gas shift membrane reactors. CO{sub 2}-rich operation does not affect the catalyst activity or stability; neither does it affect hydrogen permeation through the Pd-Cu membrane. Operation in the temperature range of 400-430 C is recommended.

Maria Flytzani-Stephanopoulos; Xiaomei Qi; Scott Kronewitter

2004-02-01T23:59:59.000Z

248

ARTICLE IN PRESS Modeling hydrogen sulfide emissions across the gas liquid interface  

E-Print Network [OSTI]

production methods in the US have led to the emergence of large- scale commeARTICLE IN PRESS Modeling hydrogen sulfide emissions across the gas­ liquid interface-film theory Hydrogen sulfide Process-based model Lagoon flux Mass transfer a b s t r a c t Hydrogen sulfide (H

Aneja, Viney P.

249

The hydrogen energy economy: its long-term role in greenhouse gas reduction  

E-Print Network [OSTI]

The hydrogen energy economy: its long-term role in greenhouse gas reduction Geoff Dutton, Abigail for Climate Change Research Technical Report 18 #12;The Hydrogen Energy Economy: its long term role 2005 This is the final report from Tyndall research project IT1.26 (The Hydrogen energy economy: its

Watson, Andrew

250

Winery waste makes fuel Electricity, bacteria break organics in wastewater into hydrogen gas  

E-Print Network [OSTI]

MSNBC.com Winery waste makes fuel Electricity, bacteria break organics in wastewater into hydrogen method for generating hydrogen fuel from wastewater is now operating at a California winery material in the wastewater into hydrogen gas. There is a lot more energy locked in the wastewater than

251

New Report Describes Joint Opportunities for Natural Gas and Hydrogen Fuel Cell Vehicle Markets  

Broader source: Energy.gov [DOE]

Sandia National Laboratories, supported by the DOEs Vehicle Technologies and Fuel Cell Technologies Offices, recently released the workshop report Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles. Held in September 2014, the workshop considered common opportunities and challenges in expanding the use of hydrogen and natural gas as transportation fuels.

252

Detailed Studies of a HighDensity Polarized Hydrogen Gas Target for Storage Rings  

E-Print Network [OSTI]

Detailed Studies of a High­Density Polarized Hydrogen Gas Target for Storage Rings Kirsten Zapfe 1 (1996) 293 Abstract A high­density target of polarized atomic hydrogen gas for applications in storage rings was produced by injecting atoms from an atomic beam source into a T­shaped storage cell

253

Colton Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Colton Landfill Biomass Facility Colton Landfill Biomass Facility Jump to: navigation, search Name Colton Landfill Biomass Facility Facility Colton Landfill Sector Biomass Facility Type Landfill Gas Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° 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":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

254

Girvin Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Girvin Landfill Biomass Facility Girvin Landfill Biomass Facility Jump to: navigation, search Name Girvin Landfill Biomass Facility Facility Girvin Landfill Sector Biomass Facility Type Landfill Gas Location Duval County, Florida Coordinates 30.3500511°, -81.6035062° 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":30.3500511,"lon":-81.6035062,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

255

Acme Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Biomass Facility Landfill Biomass Facility Jump to: navigation, search Name Acme Landfill Biomass Facility Facility Acme Landfill Sector Biomass Facility Type Landfill Gas Location Contra Costa County, California Coordinates 37.8534093°, -121.9017954° 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":37.8534093,"lon":-121.9017954,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

256

BKK Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

BKK Landfill Biomass Facility BKK Landfill Biomass Facility Jump to: navigation, search Name BKK Landfill Biomass Facility Facility BKK Landfill Sector Biomass Facility Type Landfill Gas Location Los Angeles County, California Coordinates 34.3871821°, -118.1122679° 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":34.3871821,"lon":-118.1122679,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

257

Dane County Landfill | Open Energy Information  

Open Energy Info (EERE)

Dane County Landfill Dane County Landfill Jump to: navigation, search Name Dane County Landfill Facility Dane County Landfill #2 Rodefeld Sector Biomass Facility Type Landfill Gas Location Dane County, Wisconsin Coordinates 43.0186073°, -89.5497632° 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":43.0186073,"lon":-89.5497632,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

258

Westchester Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Biomass Facility Landfill Biomass Facility Jump to: navigation, search Name Westchester Landfill Biomass Facility Facility Westchester Landfill Sector Biomass Facility Type Landfill Gas Location Cook County, Illinois Coordinates 41.7376587°, -87.697554° 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":41.7376587,"lon":-87.697554,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

259

Kiefer Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Kiefer Landfill Biomass Facility Kiefer Landfill Biomass Facility Jump to: navigation, search Name Kiefer Landfill Biomass Facility Facility Kiefer Landfill Sector Biomass Facility Type Landfill Gas Location Sacramento County, California Coordinates 38.47467°, -121.3541631° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.47467,"lon":-121.3541631,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

260

Milliken Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Milliken Landfill Biomass Facility Milliken Landfill Biomass Facility Jump to: navigation, search Name Milliken Landfill Biomass Facility Facility Milliken Landfill Sector Biomass Facility Type Landfill Gas Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° 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":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

List of Hydrogen Incentives | Open Energy Information  

Open Energy Info (EERE)

List of Hydrogen Incentives List of Hydrogen Incentives Jump to: navigation, search The following contains the list of 59 Hydrogen Incentives. CSV (rows 1 - 59) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Biomass Equipment & Materials Compensating Tax Deduction (New Mexico) Sales Tax Incentive New Mexico Commercial Industrial Anaerobic Digestion Biodiesel Biomass CHP/Cogeneration Ethanol Hydrogen Landfill Gas Methanol Microturbines Municipal Solid Waste Yes Business Energy Tax Credit (Oregon) Corporate Tax Credit Oregon Agricultural Commercial Construction Industrial Multi-Family Residential Building Insulation Caulking/Weather-stripping Comprehensive Measures/Whole Building Duct/Air sealing Heat recovery Lighting Biodiesel Biomass CHP/Cogeneration

262

Reduction of titania by methane-hydrogen-argon gas mixture  

SciTech Connect (OSTI)

Reduction of titania using methane-containing gas was investigated in a laboratory fixed-bed reactor in the temperature range 1,373 to 1,773 K. The reduction production product is titanium oxycarbide, which is a solid solution of TiC and TiO. At 1,373 K, the formation rate of TiC is very slow. The rate and extent of reaction increase with increasing temperature to 1,723 K. A further increase in temperature to 1,773 K does not affect the reaction rate and extent. An increase in methane concentration to 8 vol pct favors the reduction process. A further increase in methane concentration above 8 vol pct causes excessive carbon deposition, which has a negative effect on the reaction rate. Hydrogen partial pressure should be maintained above 35 vol pct to depress the cracking of methane. Addition of water vapor to the reducing gas strongly retards the reduction reaction, even at low concentrations of 1 to 2 vol pct. Carbon monoxide also depresses the reduction process, but its effect is significant only at higher concentrations, above 10 vol pct.

Zhang, G.; Ostrovski, O.

2000-02-01T23:59:59.000Z

263

An alternative methodology for the analysis of electrical resistivity data from a soil gas study  

Science Journals Connector (OSTI)

......causes a problem, especially in landfill gas models. The uncertainties originate...the gas in the soil pores. In landfill gas models, several authors (e...Lamborn J. , 2007. Developing a landfill gas model, inTenth International Waste......

Sara Johansson; Hkan Rosqvist; Mats Svensson; Torleif Dahlin; Virginie Leroux

2011-08-01T23:59:59.000Z

264

Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas. Task 1, Literature survey  

SciTech Connect (OSTI)

To make the coal-to-hydrogen route economically attractive, improvements are being sought in each step of the process: coal gasification, water-carbon monoxide shift reaction, and hydrogen separation. This report addresses the use of membranes in the hydrogen separation step. The separation of hydrogen from synthesis gas is a major cost element in the manufacture of hydrogen from coal. Separation by membranes is an attractive, new, and still largely unexplored approach to the problem. Membrane processes are inherently simple and efficient and often have lower capital and operating costs than conventional processes. In this report current ad future trends in hydrogen production and use are first summarized. Methods of producing hydrogen from coal are then discussed, with particular emphasis on the Texaco entrained flow gasifier and on current methods of separating hydrogen from this gas stream. The potential for membrane separations in the process is then examined. In particular, the use of membranes for H{sub 2}/CO{sub 2}, H{sub 2}/CO, and H{sub 2}/N{sub 2} separations is discussed. 43 refs., 14 figs., 6 tabs.

Not Available

1986-02-01T23:59:59.000Z

265

Carbonates and oxalates in sediments and landfill: monitors of death and decay in natural and artificial systems  

Science Journals Connector (OSTI)

...intermediate stage in the production of landfill gas and as a sink for ammonia as ammonium...waste are monitored by analysis of landfill gas and leachate. Gas compositional...years. Fig. 3. Evolution in landfill gas composition with time, showing...

DAVID A. C. MANNING

266

The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study  

E-Print Network [OSTI]

The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh conditions that elucidate the role of oxygen in the functioning of silicon carbide field-effect gas sensors hydrogen-depleted state; competition between hydrogen oxidation and hydrogen diffusion to metal/ oxide

Tobin, Roger G.

267

Formation of ordered gas-solid structures via solidification in metal-hydrogen systems  

SciTech Connect (OSTI)

This work contains theoretical discussions concerning the large amount of previously published experimental data related to gas eutectic transformations in metal-hydrogen systems. Theories of pore nucleation and growth in these gas-solid materials will be presented and related to observed morphologies and structures. This work is intended to be helpful to theorists that work with metal-hydrogen systems, and experimentalists engaged in manufacturing technology development of these ordered gas-solid structures.

Shapovalov, V.I. [State Metallurgical Academy of Ukraine (Ukraine); [Sandia National Labs., Albuquerque, NM (United States)

1998-12-31T23:59:59.000Z

268

LANDFILL GAS CONVERSION TO LNG AND LCO{sub 2}. PHASE 1, FINAL REPORT FOR THE PERIOD MARCH 1998-FEBRUARY 1999  

SciTech Connect (OSTI)

Process designs and economics were developed to produce LNG and liquid carbon dioxide (CO{sub 2}) from landfill gas (LFG) using the Acrion CO{sub 2} wash process. The patented Acrion CO{sub 2} wash process uses liquid CO{sub 2} to absorb contaminants from the LFG. The process steps are compression, drying, CO{sub 2} wash contaminant removal and CO{sub 2} recovery, residual CO{sub 2} removal and methane liquefaction. Three flowsheets were developed using different residual CO{sub 2} removal schemes. These included physical solvent absorption (methanol), membranes and molecular sieves. The capital and operating costs of the flowsheets were very similar. The LNG production cost was around ten cents per gallon. In parallel with process flowsheet development, the business aspects of an eventual commercial project have been explored. The process was found to have significant potential commercial application. The business plan effort investigated the economics of LNG transportation, fueling, vehicle conversion, and markets. The commercial value of liquid CO{sub 2} was also investigated. This Phase 1 work, March 1998 through February 1999, was funded under Brookhaven National laboratory contract 725089 under the research program entitled ``Liquefied Natural Gas as a Heavy Vehicle Fuel.'' The Phase 2 effort will develop flowsheets for the following: (1) CO{sub 2} and pipeline gas production, with the pipeline methane being liquefied at a peak shaving site, (2) sewage digester gas as an alternate feedstock to LFG and (3) the use of mixed refrigerants for process cooling. Phase 2 will also study the modification of Acrion's process demonstration unit for the production of LNG and a market site for LNG production.

COOK,W.J.; NEYMAN,M.; SIWAJEK,L.A.; BROWN,W.R.; VAN HAUWAERT,P.M.; CURREN,E.D.

1998-02-25T23:59:59.000Z

269

Landfill Leachate Control  

Science Journals Connector (OSTI)

Leachate refers to the liquid, contaminated water, that results from the interaction between any water in a landfill, e.g., as the result of rainwater infiltration, and the waste emplaced in the landfill. Lea...

Dr. Haluk Akgn; Jaak J. K. Daemen

2012-01-01T23:59:59.000Z

270

Landfill Methane Oxidation Across Climate Types in the U.S.  

Science Journals Connector (OSTI)

Methane oxidation in landfill covers was determined by stable isotope analyses over 37 seasonal sampling events at 20 landfills with intermediate covers over four years. Values were calculated two ways: by assuming no isotopic fractionation during gas ...

Jeffrey Chanton; Tarek Abichou; Claire Langford; Gary Hater; Roger Green; Doug Goldsmith; Nathan Swan

2010-12-06T23:59:59.000Z

271

DOE Fuel Cell Technologies Office Record 12024: Hydrogen Production Cost Using Low-Cost Natural Gas  

Broader source: Energy.gov [DOE]

This program record from the U.S. Department of Energy's Fuel Cell Technologies Office provides information about the cost of hydrogen production using low-cost natural gas.

272

Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels, Lesssons Learned for the Safe Deployment of Vehicles  

Broader source: Energy.gov [DOE]

This agenda provides information about the Compressed Natural Gas and Hydrogen Fuels workshop hosted by the U.S. departments of Energy and Transportation on December 10-11, 2009 in Washington, D.C.

273

Life Cycle Assessment of Hydrogen Production via Natural Gas Steam Reforming  

Broader source: Energy.gov [DOE]

A life cycle assessment of hydrogen production via natural gas steam reforming was performed to examine the net emissions of greenhouse gases as well as other major environmental consequences.

274

SELECTIVE FILTER FOR SnO2 BASED GAS SENSOR : APPLICATION TO HYDROGEN TRACE DETECTION  

E-Print Network [OSTI]

are requested in several fields such as applications [1], fuel cell [2], radioactive waste storage and diverse selectivity of a sensor includes the addition of a catalyst to the tin oxide powder. In the case of hydrogen1 SELECTIVE FILTER FOR SnO2 BASED GAS SENSOR : APPLICATION TO HYDROGEN TRACE DETECTION G

Paris-Sud XI, Université de

275

Workshop Notes from "Compressed Natural Gas and Hydrogen Fuels...  

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

hydrogen blends, and their industries and applications (e.g., product specifications, tanks, reliability, safety procedures, risk mitigation, and dispensing). In the keynote...

276

Hydrogen Leak Detection Low-Cost Distributed Gas Sensors  

Broader source: Energy.gov [DOE]

Presentation slides from the April 3, 2012, Fuel Cell Technologies Program webinar "America's Next Top Energy Innovator Runner-Up Presents Hydrogen Detection Technologies".

277

Design of an underground compressed hydrogen gas storage.  

E-Print Network [OSTI]

??Hydrogen has received significant attention throughout the past decade as the United States focuses on diversifying its energy portfolio to include sources of energy beyond (more)

Powell, Tobin Micah

2011-01-01T23:59:59.000Z

278

A Low-Carbon Fuel Standard for California, Part 1: Technical Analysis  

E-Print Network [OSTI]

role of hydrogen in landfill gas utilization. Sacramento,landfills (yielding landfill gas) and livestock-manure-Diverted Methane in landfill gas Methane in biogas from

Farrell, Alexander E.; Sperling, Dan

2007-01-01T23:59:59.000Z

279

A Low-Carbon Fuel Standard for California Part 1: Technical Analysis  

E-Print Network [OSTI]

role of hydrogen in landfill gas utilization. Sacramento,landfills (yielding landfill gas) and livestock-manure-Diverted Methane in landfill gas Methane in biogas from

2007-01-01T23:59:59.000Z

280

Hydrogen and elemental carbon production from natural gas and other hydrocarbons  

DOE Patents [OSTI]

Diatomic hydrogen and unsaturated hydrocarbons are produced as reactor gases in a fast quench reactor. During the fast quench, the unsaturated hydrocarbons are further decomposed by reheating the reactor gases. More diatomic hydrogen is produced, along with elemental carbon. Other gas may be added at different stages in the process to form a desired end product and prevent back reactions. The product is a substantially clean-burning hydrogen fuel that leaves no greenhouse gas emissions, and elemental carbon that may be used in powder form as a commodity for several processes.

Detering, Brent A. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Landfill site selection and landfill liner design for Ankara, Turkey  

Science Journals Connector (OSTI)

Considering the high population growth rate of Ankara, it is inevitable that landfill(s) will be required in the area ... scope of this study is to select alternative landfill sites for Ankara based on the growin...

Gzde P?nar Yal; Haluk Akgn

2013-11-01T23:59:59.000Z

282

Technical Note Methane gas migration through geomembranes  

E-Print Network [OSTI]

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

283

Illinois Turning Landfill Trash into Future Cash | Department of Energy  

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

Turning Landfill Trash into Future Cash Turning Landfill Trash into Future Cash Illinois Turning Landfill Trash into Future Cash September 28, 2010 - 5:35pm Addthis Illinois Turning Landfill Trash into Future Cash Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Will County, Illinois officials yesterday formally broke ground on a new $7 million project (that includes $1 million of Energy Efficiency Conservation Block Grant funds) to turn methane gas from the Prairie View Landfill into electricity in a partnership with Waste Management. Will County will receive revenue from the sale of the gas created from decomposing garbage which will be harnessed and converted to generate 4.8 megawatts of green electrical power and used to power up to 8,000 homes. The future revenue generated from the sale of the gas and the sale of the

284

Reaction rate kinetics for the non-catalytic hydrogenation of Texas lignite with tetralin and hydrogen gas  

E-Print Network [OSTI]

recorder 2 ? i2 9 power supply 3 ? Air motor agitator ? Fluidized sand bath 5 ? TC-4B temp. controller 6 ? Quench tank 7 ? Thermometer S ? Pneumatic fail-safe 9 ? Air filter 10 ? Air flow regulator ll ? Condensate trap 12 ? T-reactor system 13... by: Chairman of Commi tee) (Member) (Member) (He d of Devartment) May 1980 ABSTRACT Reaction Rate Kinetics for the Non-Catalytic Hydrogenation of Texas Lignite with Tetralin and Hydrogen Gas. (May 1980) David Allen Shumbera, B. S. , Texas A...

Shumbera, David Allen

2012-06-07T23:59:59.000Z

285

Wood Gas Processing To Generate Pure Hydrogen Suitable for PEM Fuel Cells  

Science Journals Connector (OSTI)

Wood Gas Processing To Generate Pure Hydrogen Suitable for PEM Fuel Cells ... A temperature profile along the three reactors was set, attempting to optimize the overall CO conversion rate. ... Low GHSV, low sulfur loads in the feed gas (see Table 7), and the approach of temperature optimization enabled high overall conversion rates. ...

Silvester Fail; Nicolas Diaz; Florian Benedikt; Michael Kraussler; Julian Hinteregger; Klaus Bosch; Marius Hackel; Reinhard Rauch; Hermann Hofbauer

2014-10-31T23:59:59.000Z

286

Gas-Phase Thiophene Hydrogenation to Tetrahydrothiophene over Sulfide Catalysts  

Science Journals Connector (OSTI)

Thiophene hydrogenation to tetrahydrothiophene over supported transition metal sulfides is studied....T = 240C and P...= 2 MPa showed that aluminosilicate-supported PdS is one to two orders of magnitude more act...

A. V. Mashkina; L. G. Sakhaltueva

2002-01-01T23:59:59.000Z

287

Blending Hydrogen into Natural Gas Pipeline Networks: A Review...  

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

applied repair procedures have been investigated to determine if they can be used for pipeline repair under hydrogen service. The focus was on the pipeline load and the effect...

288

Evaluation of Natural Gas Pipeline Materials for Hydrogen Science  

Broader source: Energy.gov [DOE]

Presentation by 04-Adams to DOE Hydrogen Pipeline R&D Project Review Meeting held January 5-6, 2005 at Oak Ridge National Laboratory in Oak Ridge, Tennessee.

289

Landfill Bioreactor Financial AnalysisMonterey Peninsula Landfill, Marina, California  

Science Journals Connector (OSTI)

The Monterey Peninsula Landfill, owned and operated by the Monterey Regional ... that is permitted under the State of California landfill regulations. In order to evaluate the potential...

S. Purdy; R. Shedden

2009-01-01T23:59:59.000Z

290

University of Washington Montlake Landfill Oversight Committee  

E-Print Network [OSTI]

University of Washington Montlake Landfill Oversight Committee Montlake Landfill Project Guide Department with the review and approval of the Montlake Landfill Oversight Committee. #12;Montlake Landfill ...................................................................................................................................3 Figure 1 ­ Approximate Boundaries of the Montlake Landfill

Wilcock, William

291

Aerobic landfill bioreactor  

DOE Patents [OSTI]

The present invention includes a method of decomposing municipal solid waste (MSW) within a landfill by converting the landfill to aerobic degradation in the following manner: (1) injecting air via the landfill leachate collection system (2) injecting air via vertical air injection wells installed within the waste mass; (3) applying leachate to the waste mass using a pressurized drip irrigation system; (4) allowing landfill gases to vent; and (5) adjusting air injection and recirculated leachate to achieve a 40% to 60% moisture level and a temperature between 120.degree. F. and 140.degree. F. in steady state.

Hudgins, Mark P (Aiken, SC); Bessette, Bernard J (Aiken, SC); March, John (Winterville, GA); McComb, Scott T. (Andersonville, SC)

2000-01-01T23:59:59.000Z

292

Aerobic landfill bioreactor  

DOE Patents [OSTI]

The present invention includes a system of decomposing municipal solid waste (MSW) within a landfill by converting the landfill to aerobic degradation in the following manner: (1) injecting air via the landfill leachate collection system (2) injecting air via vertical air injection wells installed within the waste mass; (3) applying leachate to the waste mass using a pressurized drip irrigation system; (4) allowing landfill gases to vent; and (5) adjusting air injection and recirculated leachate to achieve a 40% to 60% moisture level and a temperature between 120.degree. F. and 140.degree. F. in steady state.

Hudgins, Mark P (Aiken, SC); Bessette, Bernard J (Aiken, SC); March, John C (Winterville, GA); McComb, Scott T. (Andersonville, SC)

2002-01-01T23:59:59.000Z

293

Leachate Free Hazardous Waste Landfill  

Science Journals Connector (OSTI)

Experiences of the past few decades have shown that controlling leachate cannot be done by sealing only the landfill bed, but rather by sealing landfill top cover.

Dipl.Ing. Karl Rohrhofer; Dr.Techn. Fariar Kohzad

1990-01-01T23:59:59.000Z

294

Influence of hydrogen patterning gas on electric and magnetic properties of perpendicular magnetic tunnel junctions  

SciTech Connect (OSTI)

To identify the degradation mechanism in magnetic tunnel junctions (MTJs) using hydrogen, the properties of the MTJs were measured by applying an additional hydrogen etch process and a hydrogen plasma process to the patterned MTJs. In these studies, an additional 50?s hydrogen etch process caused the magnetoresistance (MR) to decrease from 103% to 14.7% and the resistance (R) to increase from 6.5?k? to 39?k?. Moreover, an additional 500?s hydrogen plasma process decreased the MR from 103% to 74% and increased R from 6.5?k? to 13.9?k?. These results show that MTJs can be damaged by the hydrogen plasma process as well as by the hydrogen etch process, as the atomic bonds in MgO may break and react with the exposed hydrogen gas. Compounds such as MgO hydrate very easily. We also calculated the damaged layer width (DLW) of the patterned MTJs after the hydrogen etching and plasma processes, to evaluate the downscaling limitations of spin-transfer-torque magnetic random-access memory (STT-MRAM) devices. With these calculations, the maximum DLWs at each side of the MTJ, generated by the etching and plasma processes, were 23.8?nm and 12.8?nm, respectively. This result validates that the hydrogen-based MTJ patterning processes cannot be used exclusively in STT-MRAMs beyond 20?nm.

Jeong, J. H., E-mail: juno@fris.tohoku.ac.jp [Graduate School of Engineering, Tohoku University, Sendai (Japan); Semiconductor R and D Center, Samsung Electronics Co., Ltd., Hwasung (Korea, Republic of); Endoh, T. [Graduate School of Engineering, Tohoku University, Sendai (Japan); Center for Innovative Integrated Electronic Systems, Tohoku University, Sendai (Japan); Kim, Y.; Kim, W. K.; Park, S. O. [Semiconductor R and D Center, Samsung Electronics Co., Ltd., Hwasung (Korea, Republic of)

2014-05-07T23:59:59.000Z

295

Recovery of hydrogen and other components from refinery gas stream by partial condensation using preliminary reflux condensation  

SciTech Connect (OSTI)

A process is disclosed for separating a hydrogen-containing refinery-type gas mixture into various fractions using reflux condensation, drying and partial condensation and phase separation.

Beddome, R.A.; Fenner, G.W.; Saunders, J.B.

1984-04-17T23:59:59.000Z

296

Risk-informed separation distances for hydrogen gas storage facilities.  

SciTech Connect (OSTI)

The use of risk information in establishing code and standard requirements enables: (1) An adequate and appropriate level of safety; and (2) Deployment of hydrogen facilities are as safe as gasoline facilities. This effort provides a template for clear and defensible regulations, codes, and standards that can enable international market transformation.

Houf, William G.; Merilo, Erik (SRI); Winters, William Stanley, Jr.; Dedrick, Daniel E.; Groethe, Mark (SRI); LaChance, Jeffrey L.; Ruggles, Adam James; Moen, Christopher D.; Schefer, Robert W.; Keller, Jay O.; Zhang, Yao; Evans, Gregory Herbert

2010-09-01T23:59:59.000Z

297

Ris Energy Report 3 Hydrogen is a gas at ambient temperatures and pressures,  

E-Print Network [OSTI]

, hydrogen in the gaseous state has an extremely high ability to diffuse through solid materials be stored as a gas, a liquid or a solid. In the case of solid storage, the hydrogen exists as a chemical.0 70 10.0 141.0 Methanol 12.5 99 19.0 22.7 Gasoline 33.4 47.6 Lead/Acid Battery 0.2 Advanced battery 0

298

Workshop Agenda: Compressed Natural Gas and Hydrogen Fuels, Lesssons Learned for the Safe Deployment of Vehicles  

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

AGENDA AGENDA U. S. Department of Transportation and U.S. Department of Energy Compressed Natural Gas and Hydrogen Fuels: Lessons Learned for the Safe Deployment of Vehicles December 10-11, 2009 - Washington, DC A workshop to promote exchange of information among experts on compressed natural gas and hydrogen fuels for vehicles and to share lessons learned from deployment of these vehicles in public transit, fleets, and consumer transportation throughout the world. Workshop Objectives: * To coordinate lessons learned by identifying similarities and critical differences between compressed natural gas and hydrogen properties, including CNG-H2 blends, and their industries and applications (e.g., product specifications, tanks, reliability, safety procedures, risk mitigation, and dispensing)

299

E-Print Network 3.0 - assessing landfill performance Sample Search...  

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

and WTE waste management options... Transfer Stations (MTS); Life Cycle Assessment (LCA); Landfill Gas (LFG): Geographic Wormation Systems (GIS... . Care has been taken to...

300

E-Print Network 3.0 - areas treating landfill Sample Search Results  

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

Conference COMPARISON OF AIR EMISSIONS FROM WASTE MANAGEMENT FACILITIES Summary: .K. dioxins emissions have been reported in the fugitive gas emissions from landfills as well as...

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


301

Sorption model of trichloroethylene (TCE) and benezene in municipal landfill materials.  

E-Print Network [OSTI]

??This research is intended to establish a mathematical model describing the mass transfer of trace gas in landfill. Experimental data used for calibration were reported (more)

Chuang, Yuh-Lin

2012-01-01T23:59:59.000Z

302

System design and performance of a spiral groove gas seal for hydrogen service  

SciTech Connect (OSTI)

In the past, typical seal designs for low molecular weight gases, such as hydrogen, incorporated high pressure oil seal systems. Technology of the seventies and eighties produced a new concept - the spiral groove gas seal. This paper discusses the problems related to oil seal systems, as well as the design, application and performance of a dry gas seal. It also discusses the limitations encountered with the start-up and operation of a dry gas seal in a high pressure, oil-soluble mixture of light hydrocarbons. Results show how the spiral groove gas seal can handle adverse demands without seal failure.

Pecht, G.G.; Carter, D. (John Crane, Inc., Morton Grove, IL (USA) Marathon Petroleum Co., Robinson, IL (USA))

1990-09-01T23:59:59.000Z

303

Analysis of Lignin Hydrogenation Products by Gas Chromatography  

Science Journals Connector (OSTI)

......M. Merriman. Oxidative degradation of wood. IV. Refinement in the methylation-gas chromatographic technique of analysis. Tappi. 55: 719-21 (1972). Manuscript received June 2,1980; revision received December 22,1980. 237...

T.P. Schultz; C.L. Chen; I.S. Goldstein; F.P. Scaringelli

1981-05-01T23:59:59.000Z

304

In situ Gas Conditioning in Fuel Reforming for Hydrogen Generation  

SciTech Connect (OSTI)

The production of hydrogen for fuel cell applications requires cost and energy efficient technologies. The Absorption Enhanced Reforming (AER), developed at ZSW with industrial partners, is aimed to simplify the process by using a high temperature in situ CO2 absorption. The in situ CO2 removal results in shifting the steam reforming reaction equilibrium towards increased hydrogen concentration (up to 95 vol%). The key part of the process is the high temperature CO2 absorbent. In this contribution results of Thermal Gravimetric Analysis (TGA) investigations on natural minerals, dolomites, silicates and synthetic absorbent materials in regard of their CO2 absorption capacity and absorption/desorption cyclic stability are presented and discussed. It has been found that the inert parts of the absorbent materials have a structure stabilizing effect, leading to an improved cyclic stability of the materials.

Bandi, A.; Specht, M.; Sichler, P.; Nicoloso, N.

2002-09-20T23:59:59.000Z

305

Method for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

A method for converting hydrocarbon fuel into hydrogen gas and carbon dioxide within a reformer 10 is disclosed. According to the method, a stream including an oxygen-containing gas is directed adjacent to a first vessel 18 and the oxygen-containing gas is heated. A stream including unburned fuel is introduced into the oxygen-containing gas stream to form a mixture including oxygen-containing gas and fuel. The mixture of oxygen-containing gas and unburned fuel is directed tangentially into a partial oxidation reaction zone 24 within the first vessel 18. The mixture of oxygen-containing gas and fuel is further directed through the partial oxidation reaction zone 24 to produce a heated reformate stream including hydrogen gas and carbon monoxide. Steam may also be mixed with the oxygen-containing gas and fuel, and the reformate stream from the partial oxidation reaction zone 24 directed into a steam reforming zone 26. High- and low-temperature shift reaction zones 64,76 may be employed for further fuel processing.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H. J. (Cambridge, MA)

2000-01-01T23:59:59.000Z

306

Assessment of Hydrogen Production Systems based on Natural Gas Conversion with Carbon Capture and Storage  

Science Journals Connector (OSTI)

Abstract Introduction of hydrogen in the energy system, as a new energy carrier complementary to electricity, is exciting much interest not only for heat and power generation applications, but also for transport and petro-chemical sectors. In transition to a low carbon economy, Carbon Capture and Storage (CCS) technologies represent another way to reduce CO2 emissions. Hydrogen can be produced from various feedstocks, the most important being based on fossil fuels (natural gas and coal). This paper investigates the techno-economic and environmental aspects of hydrogen production based on natural gas reforming conversion with and without carbon capture. As CO2 capture options, gas - liquid absorption and chemical looping were evaluated. The evaluated plant concepts generate 300MWth hydrogen (based on hydrogen LHV) with purity higher than 99.95 % (vol.), suitable to be used both in petro-chemical applications as well as for Proton Exchange Membrane (PEM) fuel cells for mobile applications. For the designs with CCS, the carbon capture rate is about 70 % for absorption-based scheme while for chemical looping-based system is >99 %. Special emphasis is put in the paper on the assessment of various plant configurations and process integration issues using CAPE techniques. The mass and energy balances have been used furthermore for techno-economic and environmental impact assessments.

Calin-Cristian Cormos; Letitia Petrescu; Ana-Maria Cormos

2014-01-01T23:59:59.000Z

307

Natural Gas Used as Feedstock for Hydrogen Production  

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

Used as Feedstock for Hydrogen Production Used as Feedstock for Hydrogen Production (Million Cubic Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Area 2008 2009 2010 2011 2012 View History U.S. 188,075 143,004 154,503 169,465 183,051 2008-2012 East Coast (PADD 1) 5,149 4,178 3,346 4,815 6,313 2008-2012 Midwest (PADD 2) 37,044 36,936 45,452 44,623 46,640 2008-2012 Gulf Coast (PADD 3) 80,291 41,049 43,170 50,968 62,829 2008-2012 Rocky Mountain (PADD 4) 12,747 11,904 12,047 12,896 12,595 2008-2012 West Coast (PADD 5) 52,844 48,937 50,488 56,163 54,674 2008-2012 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data.

308

Hydrogen production and delivery analysis in US markets : cost, energy and greenhouse gas emissions.  

SciTech Connect (OSTI)

Hydrogen production cost conclusions are: (1) Steam Methane Reforming (SMR) is the least-cost production option at current natural gas prices and for initial hydrogen vehicle penetration rates, at high production rates, SMR may not be the least-cost option; (2) Unlike coal and nuclear technologies, the cost of natural gas feedstock is the largest contributor to SMR production cost; (3) Coal- and nuclear-based hydrogen production have significant penalties at small production rates (and benefits at large rates); (4) Nuclear production of hydrogen is likely to have large economies of scale, but because fixed O&M costs are uncertain, the magnitude of these effects may be understated; and (5) Given H2A default assumptions for fuel prices, process efficiencies and labor costs, nuclear-based hydrogen is likely to be more expensive to produce than coal-based hydrogen. Carbon taxes and caps can narrow the gap. Hydrogen delivery cost conclusions are: (1) For smaller urban markets, compressed gas delivery appears most economic, although cost inputs for high-pressure gas trucks are uncertain; (2) For larger urban markets, pipeline delivery is least costly; (3) Distance from hydrogen production plant to city gate may change relative costs (all results shown assume 100 km); (4) Pipeline costs may be reduced with system 'rationalization', primarily reductions in service pipeline mileage; and (5) Liquefier and pipeline capital costs are a hurdle, particularly at small market sizes. Some energy and greenhouse gas Observations: (1) Energy use (per kg of H2) declines slightly with increasing production or delivery rate for most components (unless energy efficiency varies appreciably with scale, e.g., liquefaction); (2) Energy use is a strong function of production technology and delivery mode; (3) GHG emissions reflect the energy efficiency and carbon content of each component in a production-delivery pathway; (4) Coal and natural gas production pathways have high energy consumption and significant GHG emissions (in the absence of carbon caps, taxes or sequestration); (5) Nuclear pathway is most favorable from energy use and GHG emissions perspective; (6) GH2 Truck and Pipeline delivery have much lower energy use and GHG emissions than LH2 Truck delivery; and (7) For LH2 Truck delivery, the liquefier accounts for most of the energy and GHG emissions.

Mintz, M.; Gillette, J.; Elgowainy, A. (Decision and Information Sciences); ( ES)

2009-01-01T23:59:59.000Z

309

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

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

Blending Hydrogen into Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues M. W. Melaina, O. Antonia, and M. Penev Technical Report NREL/TP-5600-51995 March 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues M. W. Melaina, O. Antonia, and M. Penev Prepared under Task No. HT12.2010 Technical Report NREL/TP-5600-51995 March 2013 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

310

Production of Hydrogen Gas from Light and the Inorganic Electron Donor Thiosulfate by Rhodopseudomonas palustris  

Science Journals Connector (OSTI)

...a potential biofuel is to find...a potential alternative to gasoline...has a high energy content, yields...including algae and cyanobacteria...Buckel. 2008. Energy conservation...hydrogen gas as a biofuel. Curr. Opin...poly-beta-hydroxybutyrate, two alternative chemicals from...a potential biofuel is to find...

Jean J. Huang; Erin K. Heiniger; James B. McKinlay; Caroline S. Harwood

2010-10-01T23:59:59.000Z

311

Anaerobic and Aerobic Hydrogen Gas Formation by the Blue-Green Alga Anabaena cylindrica  

Science Journals Connector (OSTI)

...as high in heterocyst cells (2.3 units/mg of protein) as in vegetative cells (1.1 units/mg of...isolating heterocyst cells is described. Biological hydrogen gas formation is under...potential source of fuel, and hence there is...

Arlene Daday; Rosalea A. Platz; Geoffrey D. Smith

1977-11-01T23:59:59.000Z

312

Testing of a Hydrogen Diffusion Flame Array Injector at Gas Turbine Conditions  

SciTech Connect (OSTI)

High-hydrogen gas turbines enable integration of carbon sequestration into coal-gasifying power plants, though NO{sub x} emissions are often high. This work explores nitrogen dilution of hydrogen diffusion flames to reduce thermal NO{sub x} emissions and avoid problems with premixing hydrogen at gas turbine pressures and temperatures. The burner design includes an array of high-velocity coaxial fuel and air injectors, which balances stability and ignition performance, combustor pressure drop, and flame residence time. Testing of this array injector at representative gas turbine conditions (16 atm and 1750 K firing temperature) yields 4.4 ppmv NO{sub x} at 15% O{sub 2} equivalent. NO{sub x} emissions are proportional to flame residence times, though these deviate from expected scaling due to active combustor cooling and merged flame behavior. The results demonstrate that nitrogen dilution in combination with high velocities can provide low NO{sub x} hydrogen combustion at gas turbine conditions, with significant potential for further NO{sub x} reductions via suggested design changes.

Weiland, Nathan T.; Sidwell, Todd G.; Strakey, Peter A.

2013-07-03T23:59:59.000Z

313

ASU nitrogen sweep gas in hydrogen separation membrane for production of HRSG duct burner fuel  

DOE Patents [OSTI]

The present invention relates to the use of low pressure N2 from an air separation unit (ASU) for use as a sweep gas in a hydrogen transport membrane (HTM) to increase syngas H2 recovery and make a near-atmospheric pressure (less than or equal to about 25 psia) fuel for supplemental firing in the heat recovery steam generator (HRSG) duct burner.

Panuccio, Gregory J.; Raybold, Troy M.; Jamal, Agil; Drnevich, Raymond Francis

2013-04-02T23:59:59.000Z

314

I 95 Landfill Phase II Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Phase II Biomass Facility Landfill Phase II Biomass Facility Jump to: navigation, search Name I 95 Landfill Phase II Biomass Facility Facility I 95 Landfill Phase II Sector Biomass Facility Type Landfill Gas Location Fairfax County, Virginia Coordinates 38.9085472°, -77.2405153° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.9085472,"lon":-77.2405153,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

315

Prima Desheha Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Prima Desheha Landfill Biomass Facility Prima Desheha Landfill Biomass Facility Jump to: navigation, search Name Prima Desheha Landfill Biomass Facility Facility Prima Desheha Landfill Sector Biomass Facility Type Landfill Gas Location Orange County, California Coordinates 33.7174708°, -117.8311428° 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":33.7174708,"lon":-117.8311428,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

316

Four Hills Nashua Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Four Hills Nashua Landfill Biomass Facility Four Hills Nashua Landfill Biomass Facility Jump to: navigation, search Name Four Hills Nashua Landfill Biomass Facility Facility Four Hills Nashua Landfill Sector Biomass Facility Type Landfill Gas Location Hillsborough County, New Hampshire Coordinates 42.8334794°, -71.6673352° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.8334794,"lon":-71.6673352,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

317

Ocean County Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

County Landfill Biomass Facility County Landfill Biomass Facility Jump to: navigation, search Name Ocean County Landfill Biomass Facility Facility Ocean County Landfill Sector Biomass Facility Type Landfill Gas Location Ocean County, New Jersey Coordinates 39.9652553°, -74.3118212° 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":39.9652553,"lon":-74.3118212,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

318

Cuyahoga Regional Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Biomass Facility Landfill Biomass Facility Jump to: navigation, search Name Cuyahoga Regional Landfill Biomass Facility Facility Cuyahoga Regional Landfill Sector Biomass Facility Type Landfill Gas Location Cuyahoga County, Ohio Coordinates 41.7048247°, -81.7787021° 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":41.7048247,"lon":-81.7787021,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

319

Miramar Landfill Metro Biosolids Center Biomass Facility | Open Energy  

Open Energy Info (EERE)

Miramar Landfill Metro Biosolids Center Biomass Facility Miramar Landfill Metro Biosolids Center Biomass Facility Jump to: navigation, search Name Miramar Landfill Metro Biosolids Center Biomass Facility Facility Miramar Landfill Metro Biosolids Center Sector Biomass Facility Type Landfill Gas Location San Diego County, California Coordinates 33.0933809°, -116.6081653° 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":33.0933809,"lon":-116.6081653,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

320

Mid Valley Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Landfill Biomass Facility Landfill Biomass Facility Jump to: navigation, search Name Mid Valley Landfill Biomass Facility Facility Mid Valley Landfill Sector Biomass Facility Type Landfill Gas Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° 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":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Blackburn Landfill Co-Generation Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Blackburn Landfill Co-Generation Biomass Facility Blackburn Landfill Co-Generation Biomass Facility Jump to: navigation, search Name Blackburn Landfill Co-Generation Biomass Facility Facility Blackburn Landfill Co-Generation Sector Biomass Facility Type Landfill Gas Location Catawba County, North Carolina Coordinates 35.6840748°, -81.2518833° 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":35.6840748,"lon":-81.2518833,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

322

Pearl Hollow Landfil Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Pearl Hollow Landfil Biomass Facility Pearl Hollow Landfil Biomass Facility Jump to: navigation, search Name Pearl Hollow Landfil Biomass Facility Facility Pearl Hollow Landfil Sector Biomass Facility Type Landfill Gas Location Hardin County, Kentucky Coordinates 37.6565708°, -86.0121573° 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":37.6565708,"lon":-86.0121573,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

323

Unusual calcite stromatolites and pisoids from a landfill leachate collection system  

Science Journals Connector (OSTI)

...with leachate. The remaining void space is filled with landfill gas, which is composed mainly of methane and carbon dioxide...with leachate. The remaining void space is filled with landfill gas, which is composed mainly of methane and carbon dioxide...

324

Hydrogen Storage - Current Technology | Department of Energy  

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

Current on-board hydrogen storage approaches involve compressed hydrogen gas tanks, liquid hydrogen tanks, cryogenic compressed hydrogen, metal hydrides,...

325

Adaptation of a commercially available 200 kW natural gas fuel cell power plant for operation on a hydrogen rich gas stream  

SciTech Connect (OSTI)

International Fuel Cells (IFC) has designed a hydrogen fueled fuel cell power plant based on a modification of its standard natural gas fueled PC25{trademark} C fuel cell power plant. The natural gas fueled PC25 C is a 200 kW, fuel cell power plant that is commercially available. The program to accomplish the fuel change involved deleting the natural gas processing elements, designing a new fuel pretreatment subsystem, modifying the water and thermal management subsystem, developing a hydrogen burner to combust unconsumed hydrogen, and modifying the control system. Additionally, the required modifications to the manufacturing and assembly procedures necessary to allow the hydrogen fueled power plant to be manufactured in conjunction with the on-going production of the standard PC25 C power plants were identified. This work establishes the design and manufacturing plan for the 200 kW hydrogen fueled PC25 power plant.

Maston, V.A.

1997-12-01T23:59:59.000Z

326

5341 sanitary landfill [n] (1)  

Science Journals Connector (OSTI)

envir....(Process of controlled dumping [US]/tipping [UK] of industrial or domestic waste material on a landfill site by dumping/tipping in layers, each... sanitary landfill [US]2 ...

2010-01-01T23:59:59.000Z

327

Gas separation by pressure swing adsorption for producing hydrogen from coal: Final report  

SciTech Connect (OSTI)

This project demonstrated the feasibility of producing high purity hydrogen from a coal gasification product gas mixture by Pressure Swing Adsorption (PSA) using a commercial 5A zeolite as the adsorbent. The major advantage of PSA over conventional hydrogen upgrading processes is associated with lower overall production costs. This is mainly due to the integration of PSA into H/sub 2/ production plants as a single unit operation by replacing the low temperature carbon monoxide shift, carbon dioxide wash and methanation steps. In this way, hydrogen production costs are typically reduced from 7 to 40%. A single bed PSA process was designed to simulate the various steps of commercial multibed PSA plants. A new and very important step, ''Vacuum Purge'', was also investigated. 45 refs., 38 figs., 50 tabs.

Kapoor, A.; Ritter, J.A.; Yang, R.T.

1988-02-01T23:59:59.000Z

328

Hydrogen  

Science Journals Connector (OSTI)

Hydrogen energy is a clean or inexhaustible energy like renewable energy and nuclear energy. Todays energy supply has a considerable impact on the environment. Hydrogen energy is a promising alternative solut...

2009-01-01T23:59:59.000Z

329

Time-dependent gas phase kinetics in a hydrogen diluted silane plasma  

SciTech Connect (OSTI)

The gas phase kinetics in a high-pressure hydrogen diluted silane plasma has been studied at time scales of 10{sup -2}-6x10{sup 2} s. The time-resolved gas phase composition shows the following kinetics at different time scales: silane decomposition and polysilane generation in < or approx. 2x10{sup -1} s, nanoparticle formation and plasma density reduction in 10{sup -1}-10{sup 0} s, polysilane accumulation in 10{sup 0}-10{sup 2} s, and silane depletion and electrode heating in > or approx. 10{sup 1} s. Disilane radicals are implied to be the dominant film precursors in addition to silyl radicals.

Nunomura, S.; Kondo, M. [Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan); Yoshida, I. [Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan); Advanced Photovoltaics Development Center, Advanced Energy Research Center, Sanyo Electric Co., Ltd., 108 Ohmori, Anpachi-cho, Anpachi-gun, Gifu 503-0195 (Japan)

2009-02-16T23:59:59.000Z

330

Process for producing methane from gas streams containing carbon monoxide and hydrogen  

DOE Patents [OSTI]

Carbon monoxide-containing gas streams are passed over a catalyst capable of catalyzing the disproportionation of carbon monoxide so as to deposit a surface layer of active surface carbon on the catalyst essentially without formation of inactive coke thereon. The surface layer is contacted with steam and is thus converted to methane and CO.sub.2, from which a relatively pure methane product may be obtained. While carbon monoxide-containing gas streams having hydrogen or water present therein can be used only the carbon monoxide available after reaction with said hydrogen or water is decomposed to form said active surface carbon. Although hydrogen or water will be converted, partially or completely, to methane that can be utilized in a combustion zone to generate heat for steam production or other energy recovery purposes, said hydrogen is selectively removed from a CO--H.sub.2 -containing feed stream by partial oxidation thereof prior to disproportionation of the CO content of said stream.

Frost, Albert C. (Congers, NY)

1980-01-01T23:59:59.000Z

331

Life-cycle assessment of diesel, natural gas and hydrogen fuel cell bus transportation systems  

Science Journals Connector (OSTI)

The Sustainable Transport Energy Programme (STEP) is an initiative of the Government of Western Australia, to explore hydrogen fuel cell technology as an alternative to the existing diesel and natural gas public transit infrastructure in Perth. This project includes three buses manufactured by DaimlerChrysler with Ballard fuel cell power sources operating in regular service alongside the existing natural gas and diesel bus fleets. The life-cycle assessment (LCA) of the fuel cell bus trial in Perth determines the overall environmental footprint and energy demand by studying all phases of the complete transportation system, including the hydrogen infrastructure, bus manufacturing, operation, and end-of-life disposal. The \\{LCAs\\} of the existing diesel and natural gas transportation systems are developed in parallel. The findings show that the trial is competitive with the diesel and natural gas bus systems in terms of global warming potential and eutrophication. Emissions that contribute to acidification and photochemical ozone are greater for the fuel cell buses. Scenario analysis quantifies the improvements that can be expected in future generations of fuel cell vehicles and shows that a reduction of greater than 50% is achievable in the greenhouse gas, photochemical ozone creation and primary energy demand impact categories.

Jamie Ally; Trevor Pryor

2007-01-01T23:59:59.000Z

332

Lifecycle impacts of natural gas to hydrogen pathways on urban air quality  

E-Print Network [OSTI]

on the impact of hydrogen production on urban air quality.in ambient air quality: (1) onsite hydrogen production; (2)centralized hydrogen production with gaseous hydrogen

Wang, Guihua; Ogden, Joan M; Nicholas, Michael A

2007-01-01T23:59:59.000Z

333

Process for Generation of Hydrogen Gas from Various Feedstocks Using Thermophilic Bacteria  

SciTech Connect (OSTI)

A method for producing hydrogen gas is provided comprising selecting a bacteria from the Order Thermotogales, subjecting the bacteria to a feedstock and to a suitable growth environment having an oxygen concentration below the oxygen concentration of water in equilibrium with air; and maintaining the environment at a predetermined pH and at a temperature of at least approximately 45 degrees C. for a time sufficient to allow the bacteria to metabolize the feedstock.

Ooteghem Van, Suellen

2005-09-13T23:59:59.000Z

334

The Integration of a Structural Water-Gas-Shift Catalyst with a Vanadium Alloy Hydrogen Transport Device  

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

9 9 The InTegraTIon of a STrucTural WaTer- gaS-ShIfT caTalyST WITh a VanadIum alloy hydrogen TranSporT deVIce Description The purpose of this project is to produce a scalable device that simultaneously performs both water-gas-shift (WGS) and hydrogen separation from a coal-derived synthesis gas stream. The justification of such a system is the improved efficiency for the overall production of hydrogen. Removing hydrogen from the synthesis gas (syngas) stream allows the WGS reaction to convert more carbon monoxide (CO) to carbon dioxide (CO 2 ) and maximizes the total hydrogen produced. An additional benefit is the reduction in capital cost of plant construction due to the removal of one step in the process by integrating WGS with the membrane separation device.

335

Improving gasoline direct injection (GDI) engine efficiency and emissions with hydrogen from exhaust gas fuel reforming  

Science Journals Connector (OSTI)

Abstract Exhaust gas fuel reforming has been identified as a thermochemical energy recovery technology with potential to improve gasoline engine efficiency, and thereby reduce CO2 in addition to other gaseous and particulate matter (PM) emissions. The principle relies on achieving energy recovery from the hot exhaust stream by endothermic catalytic reforming of gasoline and a fraction of the engine exhaust gas. The hydrogen-rich reformate has higher enthalpy than the gasoline fed to the reformer and is recirculated to the intake manifold, i.e. reformed exhaust gas recirculation (REGR). The REGR system was simulated by supplying hydrogen and carbon monoxide (CO) into a conventional EGR system. The hydrogen and CO concentrations in the REGR stream were selected to be achievable in practice at typical gasoline exhaust temperatures. Emphasis was placed on comparing REGR to the baseline gasoline engine, and also to conventional EGR. The results demonstrate the potential of REGR to simultaneously increase thermal efficiency, reduce gaseous emissions and decrease PM formation.

Daniel Fennell; Jose Herreros; Athanasios Tsolakis

2014-01-01T23:59:59.000Z

336

Assessing the Changes In Safety Risk Arising From the Use of Natural Gas Infrastructure For Mixtures of Hydrogen and Natural Gas  

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

6/02/2005 6/02/2005 Assessing the changes in safety risk arising from the use of natural gas infrastructures for mixtures of hydrogen and natural gas NATURALHY G. Hankinson Loughborough University, UK 2 16/02/2005 Naturalhy project safety work package NATURALHY 3 16/02/2005 Outline NATURALHY To identify and quantify the major factors influencing safety in the transportation, distribution, and delivery of hydrogen/natural gas mixtures by means of existing natural gas infrastructures. 4 16/02/2005 Purpose NATURALHY To provide information to allow risk assessments to be performed to assist decisions concerning: * The amount of hydrogen that can be introduced into natural gas systems * The conditions under which such systems should be operated, and * The identification of vulnerable locations where

337

Deposition of device quality, low hydrogen content, amorphous silicon films by hot filament technique using ``safe`` silicon source gas  

DOE Patents [OSTI]

A method is described for producing hydrogenated amorphous silicon on a substrate by flowing a stream of safe (diluted to less than 1%) silane gas past a heated filament. 7 figs.

Mahan, A.H.; Molenbroek, E.C.; Nelson, B.P.

1998-07-07T23:59:59.000Z

338

Humidity-independent portable air-hydrogen fuel cells with slotted silicon based gas-distributing plates  

Science Journals Connector (OSTI)

We have studied the characteristics of small-scale air-hydrogen fuel cells (FCs) operating in a free-breathing cathode regime. The cells are provided with a new gas-distributing element on the cathode side, wh...

E. V. Astrova; D. A. Andronikov; M. V. Gorokhov

2010-06-01T23:59:59.000Z

339

ANALYSIS OF A HIGH TEMPERATURE GAS-COOLED REACTOR POWERED HIGH TEMPERATURE ELECTROLYSIS HYDROGEN PLANT  

SciTech Connect (OSTI)

An updated reference design for a commercial-scale high-temperature electrolysis (HTE) plant for hydrogen production has been developed. The HTE plant is powered by a high-temperature gas-cooled reactor (HTGR) whose configuration and operating conditions are based on the latest design parameters planned for the Next Generation Nuclear Plant (NGNP). The current HTGR reference design specifies a reactor power of 600 MWt, with a primary system pressure of 7.0 MPa, and reactor inlet and outlet fluid temperatures of 322C and 750C, respectively. The reactor heat is used to produce heat and electric power to the HTE plant. A Rankine steam cycle with a power conversion efficiency of 44.4% was used to provide the electric power. The electrolysis unit used to produce hydrogen includes 1.1 million cells with a per-cell active area of 225 cm2. The reference hydrogen production plant operates at a system pressure of 5.0 MPa, and utilizes a steam-sweep system to remove the excess oxygen that is evolved on the anode (oxygen) side of the electrolyzer. The overall system thermal-to-hydrogen production efficiency (based on the higher heating value of the produced hydrogen) is 42.8% at a hydrogen production rate of 1.85 kg/s (66 million SCFD) and an oxygen production rate of 14.6 kg/s (33 million SCFD). An economic analysis of this plant was performed with realistic financial and cost estimating The results of the economic analysis demonstrated that the HTE hydrogen production plant driven by a high-temperature helium-cooled nuclear power plant can deliver hydrogen at a competitive cost. A cost of $3.03/kg of hydrogen was calculated assuming an internal rate of return of 10% and a debt to equity ratio of 80%/20% for a reactor cost of $2000/kWt and $2.41/kg of hydrogen for a reactor cost of $1400/kWt.

M. G. McKellar; E. A. Harvego; A. M. Gandrik

2010-11-01T23:59:59.000Z

340

Hydrogen production from steam reforming of coke oven gas and its utility for indirect reduction of iron oxides in blast  

E-Print Network [OSTI]

of coal and coke are consumed for heating and reducing iron oxides [2,3]. As a result, BFs have becomeHydrogen production from steam reforming of coke oven gas and its utility for indirect reduction 2012 Available online 18 June 2012 Keywords: Steam reforming Hydrogen and syngas production Coke oven

Leu, Tzong-Shyng "Jeremy"

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Hydordesulfurization of dibenzothiophene using hydrogen generated in situ by the water-gas shift reaction in a trickle bed reactor  

E-Print Network [OSTI]

HYDRODESULFURIZATION OF DIBENZOTHIOPHENE USING HYDROGEN GENERATED IN SITU BY THE WATER ? GAS SHIFT REACTION IN A TRICKLE BED REACTOR A Thesis BRUCE DAVID HOOK Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1984 Major Subject: Chemical Engineering HYDRODESULFURIZATION OF DIBENZOTHIOPHENE USING HYDROGEN GENERATED IN SITU BY THE WATER ? GAS SHIFT REACTION IN A TRICKLE BED REACTOR A Thesis by BRUCE...

Hook, Bruce David

2012-06-07T23:59:59.000Z

342

Analyzing Natural Gas Based Hydrogen Infrastructure - Optimizing Transitions from Distributed to Centralized H2 Production  

E-Print Network [OSTI]

the lowest cost hydrogen production method, supplying aroundcommon method of industrial and refinery hydrogen production

Yang, Christopher; Ogden, Joan M

2005-01-01T23:59:59.000Z

343

Method And Apparatus For Converting Hydrocarbon Fuel Into Hydrogen Gas And Carbon Dioxide  

DOE Patents [OSTI]

A hydrocarbon fuel reforming method is disclosed suitable for producing synthesis hydrogen gas from reactions with hydrocarbons fuels, oxygen, and steam. A first mixture of an oxygen-containing gas and a first fuel is directed into a first tube 108 to produce a first reaction reformate. A second mixture of steam and a second fuel is directed into a second tube 116 annularly disposed about the first tube 108 to produce a second reaction reformate. The first and second reaction reformates are then directed into a reforming zone 144 and subject to a catalytic reforming reaction. In another aspect of the method, a first fuel is combusted with an oxygen-containing gas in a first zone 108 to produce a reformate stream, while a second fuel under steam reforming in a second zone 116. Heat energy from the first zone 108 is transferred to the second zone 116.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H. J. (Cambridge, MA)

2001-03-27T23:59:59.000Z

344

Hydrologic evaluation of landfill performance (HELP) modeling in bioreactor landfill design and permitting  

Science Journals Connector (OSTI)

The practice of operating municipal solid waste landfills as bioreactor landfills has become more common over the past ... balance and flow is more critical in such landfills than in dry landfills, researchers ha...

Qiyong Xu; Hwidong Kim; Pradeep Jain

2012-03-01T23:59:59.000Z

345

Hydrogen sensor  

DOE Patents [OSTI]

A hydrogen sensor for detecting/quantitating hydrogen and hydrogen isotopes includes a sampling line and a microplasma generator that excites hydrogen from a gas sample and produces light emission from excited hydrogen. A power supply provides power to the microplasma generator, and a spectrometer generates an emission spectrum from the light emission. A programmable computer is adapted for determining whether or not the gas sample includes hydrogen, and for quantitating the amount of hydrogen and/or hydrogen isotopes are present in the gas sample.

Duan, Yixiang (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Cao, Wenqing (Katy, TX)

2010-11-23T23:59:59.000Z

346

Carbon dioxide hydrogenation to form methanol via a reverse-water-gas-shift reaction (the CAMERE process)  

SciTech Connect (OSTI)

The CAMERE process (carbon dioxide hydrogenation to form methanol via a reverse-water-gas-shift reaction) was developed and evaluated. The reverse-water-gas-shift reactor and the methanol synthesis reactor were serially aligned to form methanol from CO{sub 2} hydrogenation. Carbon dioxide was converted to CO and water by the reverse-water-gas-shift reaction (RWReaction) to remove water before methanol was synthesized. With the elimination of water by RWReaction, the purge gas volume was minimized as the recycle gas volume decreased. Because of the minimum purge gas loss by the pretreatment of RWReactor, the overall methanol yield increased up to 89% from 69%. An active and stable catalyst with the composition of Cu/ZnO/ZrO{sub 2}/Ga{sub 2}O{sub 3} (5:3:1:1) was developed. The system was optimized and compared with the commercial methanol synthesis processes from natural gas and coal.

Joo, O.S.; Jung, K.D.; Han, S.H.; Uhm, S.J. [Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Catalysis Lab.] [Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Catalysis Lab.; Moon, I. [Yonsei Univ., Seoul (Korea, Republic of). Dept. of Chemical Engineering] [Yonsei Univ., Seoul (Korea, Republic of). Dept. of Chemical Engineering; Rozovskii, A.Y.; Lin, G.I. [A.V. Topchiev Inst. of Petrochemical Synthesis, Moscow (Russian Federation)] [A.V. Topchiev Inst. of Petrochemical Synthesis, Moscow (Russian Federation)

1999-05-01T23:59:59.000Z

347

The effects and characteristics of hydrogen in SNG on gas turbine combustion using a diffusion type combustor  

Science Journals Connector (OSTI)

Abstract Converting coal to natural gas may be one of the alternative solutions for satisfying the demand for natural gas. However, synthetic natural gas (SNG) has not been proven effective in natural gas-fired power plants. In this research, several combustion tests using a diffusion type combustor were conducted to determine the effect of hydrogen content in SNG on gas turbine combustion. Three kinds of SNG with different H2 content up to 3%vol were used for the combustion tests. Even a small amount of hydrogen in SNG affects the flame structure: it shortened the flame length and enlarged the flame angle slightly. However, hydrogen content up to 3% in SNG did not affect the gas turbine combustion characteristics, which are emission performance and combustion efficiency. Due to a similarity with real gas turbine combustor conditions for power generation, a high pressure combustion test helped us verify the ambient pressure combustion tests conducted to determine the effect of hydrogen in SNG. In the high pressure combustion test, the pattern factors were identical even though the hydrogen content was varied from 0% to 3%.

Seik Park; Uisik Kim; Minchul Lee; Sungchul Kim; Dongjin Cha

2013-01-01T23:59:59.000Z

348

Evaluation of Technical Feasibility of Homogeneous Charge Compression Ignition (HCCI) Engine Fueled with Hydrogen, Natural Gas, and DME  

SciTech Connect (OSTI)

The objective of the proposed project was to confirm the feasibility of using blends of hydrogen and natural gas to improve the performance, efficiency, controllability and emissions of a homogeneous charge compression ignition (HCCI) engine. The project team utilized both engine simulation and laboratory testing to evaluate and optimize how blends of hydrogen and natural gas fuel might improve control of HCCI combustion. GTI utilized a state-of-the art single-cylinder engine test platform for the experimental work in the project. The testing was designed to evaluate the feasibility of extending the limits of HCCI engine performance (i.e., stable combustion, high efficiency and low emissions) on natural gas by using blends of natural gas and hydrogen. Early in the project Ricardo provided technical support to GTI as we applied their engine performance simulation program, WAVE, to our HCCI research engine. Modeling support was later provided by Digital Engines, LLC to use their proprietary model to predict peak pressures and temperatures for varying operating parameters included in the Design of Experiments test plan. Digital Engines also provided testing support for the hydrogen and natural gas blends. Prof. David Foster of University of Wisconsin-Madison participated early in the project by providing technical guidance on HCCI engine test plans and modeling requirements. The main purpose of the testing was to quantify the effects of hydrogen addition to natural gas HCCI. Directly comparing straight natural gas with the hydrogen enhanced test points is difficult due to the complexity of HCCI combustion. With the same air flow rate and lambda, the hydrogen enriched fuel mass flow rate is lower than the straight natural gas mass flow rate. However, the energy flow rate is higher for the hydrogen enriched fuel due to hydrogens significantly greater lower heating value, 120 mJ/kg for hydrogen compared to 45 mJ/kg for natural gas. With these caveats in mind, an analysis of test results indicates that hydrogen enhanced natural gas HCCI (versus neat natural gas HCCI at comparable stoichiometry) had the following characteristics: Substantially lower intake temperature needed for stable HCCI combustion Inconclusive impact on engine BMEP and power produced, Small reduction in the thermal efficiency of the engine, Moderate reduction in the unburned hydrocarbons in the exhaust, Slight increase in NOx emissions in the exhaust, Slight reduction in CO2 in the exhaust. Increased knocking at rich stoichiometry The major accomplishments and findings from the project can be summarized as follows: 1. A model was calibrated for accurately predicting heat release rate and peak pressures for HCCI combustion when operating on hydrogen and natural gas blends. 2. A single cylinder research engine was thoroughly mapped to compare performance and emissions for micro-pilot natural gas compression ignition, and HCCI combustion for neat natural gas versus blends of natural gas and hydrogen.

Pratapas, John; Mather, Daniel; Kozlovsky, Anton

2013-03-31T23:59:59.000Z

349

Durable regenerable sorbent pellets for removal of hydrogen sulfide from coal gas  

DOE Patents [OSTI]

Pellets for removing hydrogen sulfide from a coal gasification stream at an elevated temperature are prepared in durable form usable over repeated cycles of absorption and regeneration. The pellets include a material reactive with hydrogen sulfide, in particular zinc oxide, a binder, and an inert material, in particular calcium sulfate (drierite), having a particle size substantially larger than other components of the pellets. A second inert material and a promoter may also be included. Preparation of the pellets may be carried out by dry, solid-state mixing of components, moistening the mixture, and agglomerating it into pellets, followed by drying and calcining. Pellet size is selected, depending on the type of reaction bed for which the pellets are intended. The use of inert material with a large particle size provides a stable pellet structure with increased porosity, enabling effective gas contact and prolonged mechanical durability.

Siriwardane, Ranjani V. (Morgantown, WV)

1997-01-01T23:59:59.000Z

350

Durable regenerable sorbent pellets for removal of hydrogen sulfide coal gas  

DOE Patents [OSTI]

Pellets for removing hydrogen sulfide from a coal gasification stream at an elevated temperature are prepared in durable form, usable over repeated cycles of absorption and regeneration. The pellets include a material reactive with hydrogen sulfide, in particular zinc oxide, a binder, and an inert material, in particular calcium sulfate (drierite), having a particle size substantially larger than other components of the pellets. A second inert material and a promoter may also be included. Preparation of the pellets may be carried out by dry, solid-state mixing of components, moistening the mixture, and agglomerating it into pellets, followed by drying and calcining. Pellet size is selected, depending on the type of reaction bed for which the pellets are intended. The use of inert material with a large particle size provides a stable pellet structure with increased porosity, enabling effective gas contact and prolonged mechanical durability.

Siriwardane, Ranjani V. (Morgantown, WV)

1999-01-01T23:59:59.000Z

351

Is there hydrogen bonding for gas phase SN2 pre-reaction complexes?  

Science Journals Connector (OSTI)

Abstract For some gas-phase X?+CH3Y?XCH3+Y? SN2 nucleophilic substitution reactions a pre-reaction complex is formed in which the attacking anion binds to a H-atom to form X??HCH2Y. In this work properties of this complex are investigated, for the OH?+CH3I and F?+CH3I reactions, to determine whether the HO??HCH2I and F??HCH2I complexes should be considered hydrogen-bonded complexes. Properties considered for these complexes are their structures, vibrational frequencies, well depths, and partial atomic charges. Also considered is the role of the HO??HCH2I complex in proton transfer for both the proton transfer and SN2 reaction pathways. The results of these analyses indicate that these X??HCH2Y complexes are hydrogen bonding complexes.

Jing Xie; Jiaxu Zhang; William L. Hase

2014-01-01T23:59:59.000Z

352

Influence of Intense Beam in High Pressure Hydrogen Gas Filled RF Cavities  

SciTech Connect (OSTI)

The influence of an intense beam in a high-pressure gas filled RF cavity has been measured by using a 400 MeV proton beam in the Mucool Test Area at Fermilab. The ionization process generates dense plasma in the cavity and the resultant power loss to the plasma is determined by measuring the cavity voltage on a sampling oscilloscope. The energy loss has been observed with various peak RF field gradients (E), gas pressures (p), and beam intensities in nitrogen and hydrogen gases. Observed RF energy dissipation in single electron (dw) in N{sub 2} and H{sub 2} gases was 2 10{sup -17} and 3 10{sup -17} Joules/RF cycle at E/p = 8 V/cm/Torr, respectively. More detailed dw measurement have been done in H{sub 2} gas at three different gas pressures. There is a clear discrepancy between the observed dw and analytical one. The discrepancy may be due to the gas density effect that has already been observed in various experiments.

Yonehara, K.; Chung, M.; Collura, M.G.; Jana, M.R.; Leonova, M.; Moretti, A.; Popovic, M.; Schwarz, T.; Tollestrup, A.; /Fermilab; Johnson, R.P.; Franagan, G.; /Muons, Inc. /IIT

2012-05-01T23:59:59.000Z

353

Pilot Scale Water Gas Shift - Membrane Device for Hydrogen from Coal  

SciTech Connect (OSTI)

The objectives of the project were to build pilot scale hydrogen separation systems for use in a gasification product stream. This device would demonstrate fabrication and manufacturing techniques for producing commercially ready facilities. The design was a 2 lb/day hydrogen device which included composite hydrogen separation membranes, a water gas shift monolith catalyst, and stainless steel structural components. Synkera Technologies was to prepare hydrogen separation membranes with metallic rims, and to adjust the alloy composition in their membranes to a palladium-gold composition which is sulfur resistant. Chart was to confirm their brazing technology for bonding the metallic rims of the composite membranes to their structural components and design and build the 2 lbs/day device incorporating membranes and catalysts. WRI prepared the catalysts and completed the testing of the membranes and devices on coal derived syngas. The reactor incorporated eighteen 2'' by 7'' composite palladium alloy membranes. These membranes were assembled with three stacks of three paired membranes. Initial vacuum testing and visual inspection indicated that some membranes were cracked, either in transportation or in testing. During replacement of the failed membranes, while pulling a vacuum on the back side of the membranes, folds were formed in the flexible composite membranes. In some instances these folds led to cracks, primarily at the interface between the alumina and the aluminum rim. The design of the 2 lb/day device was compromised by the lack of any membrane isolation. A leak in any membrane failed the entire device. A large number of tests were undertaken to bring the full 2 lb per day hydrogen capacity on line, but no single test lasted more than 48 hours. Subsequent tests to replace the mechanical seals with brazing have been promising, but the technology remains promising but not proven.

Barton, Tom

2013-06-30T23:59:59.000Z

354

Update on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate Treatment Studyreatment Studyreatment Studyreatment Studyreatment Study continued on p  

E-Print Network [OSTI]

Update on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate TUpdate on Hilo Landfill Leachate Treatment Studyreatment, the County of Hawaii is considering an expansion of the South Hilo Sanitary Landfill (SHSL

355

GEOSYNTHETIC REINFORCEMENT IN LANDFILL DESIGN: US PERSPECTIVES  

E-Print Network [OSTI]

GEOSYNTHETIC REINFORCEMENT IN LANDFILL DESIGN: US PERSPECTIVES Jorge G. Zornberg1 , M. ASCE Abstract: Geosynthetic reinforcement in landfill applications in the US has involved conventional reinforced soil structures and veneer stabilization with reinforcements placed along the landfill slope

Zornberg, Jorge G.

356

Mitigation of Hydrogen Gas Generation from the Reaction of Water with Uranium Metal in K Basins Sludge  

SciTech Connect (OSTI)

Means to decrease the rate of hydrogen gas generation from the chemical reaction of uranium metal with water were identified by surveying the technical literature. The underlying chemistry and potential side reactions were explored by conducting 61 principal experiments. Several methods achieved significant hydrogen gas generation rate mitigation. Gas-generating side reactions from interactions of organics or sludge constituents with mitigating agents were observed. Further testing is recommended to develop deeper knowledge of the underlying chemistry and to advance the technology aturation level. Uranium metal reacts with water in K Basin sludge to form uranium hydride (UH3), uranium dioxide or uraninite (UO2), and diatomic hydrogen (H2). Mechanistic studies show that hydrogen radicals (H) and UH3 serve as intermediates in the reaction of uranium metal with water to produce H2 and UO2. Because H2 is flammable, its release into the gas phase above K Basin sludge during sludge storage, processing, immobilization, shipment, and disposal is a concern to the safety of those operations. Findings from the technical literature and from experimental investigations with simple chemical systems (including uranium metal in water), in the presence of individual sludge simulant components, with complete sludge simulants, and with actual K Basin sludge are presented in this report. Based on the literature review and intermediate lab test results, sodium nitrate, sodium nitrite, Nochar Acid Bond N960, disodium hydrogen phosphate, and hexavalent uranium [U(VI)] were tested for their effects in decreasing the rate of hydrogen generation from the reaction of uranium metal with water. Nitrate and nitrite each were effective, decreasing hydrogen generation rates in actual sludge by factors of about 100 to 1000 when used at 0.5 molar (M) concentrations. Higher attenuation factors were achieved in tests with aqueous solutions alone. Nochar N960, a water sorbent, decreased hydrogen generation by no more than a factor of three while disodium phosphate increased the corrosion and hydrogen generation rates slightly. U(VI) showed some promise in attenuating hydrogen but only initial testing was completed. Uranium metal corrosion rates also were measured. Under many conditions showing high hydrogen gas attenuation, uranium metal continued to corrode at rates approaching those observed without additives. This combination of high hydrogen attenuation with relatively unabated uranium metal corrosion is significant as it provides a means to eliminate uranium metal by its corrosion in water without the accompanying hazards otherwise presented by hydrogen generation.

Sinkov, Sergey I.; Delegard, Calvin H.; Schmidt, Andrew J.

2010-01-29T23:59:59.000Z

357

Apparatus for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

Hydrocarbon fuel reformer 100 suitable for producing synthesis hydrogen gas from reactions with hydrocarbons fuels, oxygen, and steam. A first tube 108 has a first tube inlet 110 and a first tube outlet 112. The first tube inlet 110 is adapted for receiving a first mixture including an oxygen-containing gas and a first fuel. A partially oxidized first reaction reformate is directed out of the first tube 108 into a mixing zone 114. A second tube 116 is annularly disposed about the first tube 108 and has a second tube inlet 118 and a second tube outlet 120. The second tube inlet 118 is adapted for receiving a second mixture including steam and a second fuel. A steam reformed second reaction reformate is directed out of the second tube 116 and into the mixing zone 114. From the mixing zone 114, the first and second reaction reformates may be directed into a catalytic reforming zone 144 containing a reforming catalyst 147.

Clawson, Lawrence G. (7 Rocky Brook Rd., Dover, MA 02030); Mitchell, William L. (111 Oakley Rd., Belmont, MA 02178); Bentley, Jeffrey M. (20 Landmark Rd., Westford, MA 01886); Thijssen, Johannes H. J. (1 Richdale Ave.#2, Cambridge, MA 02140)

2002-01-01T23:59:59.000Z

358

Apparatus for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

A hydrocarbon fuel reformer (200) is disclosed suitable for producing synthesis hydrogen gas from reactions with hydrocarbons fuels, oxygen, and steam. The reformer (200) comprises first and second tubes (208,218). The first tube (208) includes a first catalyst (214) and receives a first mixture of steam and a first fuel. The second tube (218) is annularly disposed about the first tube (208) and receives a second mixture of an oxygen-containing gas and a second fuel. In one embodiment, a third tube (224) is annularly disposed about the second tube (218) and receives a first reaction reformate from the first tube (208) and a second reaction reformate from the second tube (218). A catalyst reforming zone (260) annularly disposed about the third tube (224) may be provided to subject reformate constituents to a shift reaction. In another embodiment, a fractionator is provided to distill first and second fuels from a fuel supply source.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H. J. (Cambridge, MA)

2001-01-01T23:59:59.000Z

359

Hydrogen Delivery  

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

Mark Paster Energy Efficiency and Renewable Energy Hydrogen, Fuel Cells and Infrastructure Technology Program Hydrogen Production and Delivery Team Hydrogen Delivery Goal Hydrogen Delivery Goal Liquid H 2 & Chem. Carriers Gaseous Pipeline Truck Hydrides Liquid H 2 - Truck - Rail Other Carriers Onsite reforming Develop Develop hydrogen fuel hydrogen fuel delivery delivery technologies that technologies that enable the introduction and enable the introduction and long long - - term viability of term viability of hydrogen as an energy hydrogen as an energy carrier for transportation carrier for transportation and stationary power. and stationary power. Delivery Options * End Game - Pipelines - Other as needed * Breakthrough Hydrogen Carriers * Truck: HP Gas & Liquid Hydrogen

360

Significant Increase in Hydrogen Photoproduction Rates and Yields by Wild-Type Algae is Detected at High Photobioreactor Gas Phase Volume (Fact Sheet)  

SciTech Connect (OSTI)

This NREL Hydrogen and Fuel Cell Technical Highlight describes how hydrogen photoproduction activity in algal cultures can be improved dramatically by increasing the gas-phase to liquid-phase volume ratio of the photobioreactor. NREL, in partnership with subcontractors from the Institute of Basic Biological Problems in Pushchino, Russia, demonstrated that the hydrogen photoproduction rate in algal cultures always decreases exponentially with increasing hydrogen partial pressure above the culture. The inhibitory effect of high hydrogen concentrations in the photobioreactor gas phase on hydrogen photoproduction by algae is significant and comparable to the effect observed with some anaerobic bacteria.

Not Available

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Power and Hydrogen Co-generation from Biogas  

Science Journals Connector (OSTI)

Furthermore, the Piedmont Regional framework is very oriented toward clean transport, in both the public sector (the GTT public transportation fleet has a multitude of natural gas-fueled buses) and the private one (FIAT has decided on methane cars as a market target in the short term, and Centro Ricerche FIAT has already developed several generations of H2-fueled car prototypes). ... The first configuration (A in Figure 1) requires less water and air, produces a higher amount of hydrogen, but has a lower power generation at the turbine. ... Cannock landfill gas powering a small tubular solid oxide fuel cell - a case study ...

Samir Bensaid; Nunzio Russo; Debora Fino

2010-02-19T23:59:59.000Z

362

Displacing Natural Gas Consumption and Lowering Emissions  

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

fuels and thereby reduce their natural gas consumption. Opportunity gas fuels include biogas from animal and agri- cultural wastes, wastewater plants, and landfills, as well as...

363

Analysis of design variables for an efficient natural gas steam reforming process comprised in a small scale hydrogen fueling station  

Science Journals Connector (OSTI)

Natural gas steam reforming process comprised in a small scale H2-fueling station for on-site hydrogen production was simulated and analyzed. The effects of process variables on the process efficiency of hydrogen production were investigated, and their optimum set point values were suggested to minimize the sizes of the process sub-units and to secure a stable operability of the reforming process. Steam to carbon (S/C) ratio of the reforming reactants was found to be a crucial parameter mostly governing both the hydrogen production efficiency and the stable operability of the process. In this study, a process run was assumed stable if feed water (WR) as a reforming reactant could have been completely evaporated into dry steam through a heat recovery steam generator (HRSG). The optimum S/C ratio was 3.0 where the process efficiency of hydrogen production was maximized and the stable operability of the process was secured. The optimum feed rates of natural gas (NGR) and WR as reforming reactants and of natural gas (NGB) as a burner fuel were also determined for a target rate of hydrogen production, 27Nm3/h. Set point temperatures of the combustion flue gas (CFG) and the reformed gas (RFG) from the reformer had no effects on the hydrogen production efficiency, however, they were important parameters affecting the stable operability of the process. The effect of the set point temperatures of the RFG from cooler and the CFG from HRSG on the hydrogen production efficiency was not much significant as compared to the S/C ratio, but needed to be adjusted because of their considerable effects on the stable operability of the process and the required heat transfer areas in cooler and HRSG.

Deuk Ki Lee; Kee Young Koo; Dong Joo Seo; Wang Lai Yoon

2012-01-01T23:59:59.000Z

364

Method And Apparatus For Converting Hydrocarbon Fuel Into Hydrogen Gas And Carbon Dioxide  

DOE Patents [OSTI]

A method is disclosed for synthesizing hydrogen gas from hydrocarbon fuel. A first mixture of steam and a first fuel is directed into a first tube 208 to subject the first mixture to a first steam reforming reaction in the presence of a first catalyst 214. A stream of oxygen-containing gas is pre-heated by transferring heat energy from product gases. A second mixture of the pre-heated oxygen-containing gas and a second fuel is directed into a second tube 218 disposed about the first tube 208 to subject the second mixture to a partial oxidation reaction and to provide heat energy for transfer to the first tube 208. A first reaction reformate from the first tube 208 and a second reaction reformate from the second tube 218 are directed into a third tube 224 disposed about the second tube 218 to subject the first and second reaction reformates to a second steam reforming reaction, wherein heat energy is transferred to the third tube 224 from the second tube 218.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H. J. (Cambridge, MA)

2000-09-26T23:59:59.000Z

365

Effect of different gas releasing methods on anaerobic fermentative hydrogen production in batch cultures  

Science Journals Connector (OSTI)

Decreasing hydrogen partial pressure can not only increase the activity of the hydrogen enzyme but also decrease the products inhibition, so it is an appropriate method to enhance the fermentative hydrogen production

Sheng Chang; Jianzheng Li; Feng Liu; Ze Yu

2012-12-01T23:59:59.000Z

366

7.4 Landfill Methane Utilization  

Broader source: Energy.gov [DOE]

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

367

IMPACT ASSESSMENT OF THE OLD QUESNEL LANDFILL  

E-Print Network [OSTI]

#12;IMPACT ASSESSMENT OF THE OLD QUESNEL LANDFILL FINAL REPORT DOE FRAP 1995-05 Prepared for List of Figures Site Location/Legal Boundary Old Quesnel Landfill .....................................2 Schematic of Source Pathway Receptor Model at Old Quesnel Landfill .......4 Landfill Extent

368

Development of a hydrogen and deuterium polarized gas target for application in storage rings. Progress report  

SciTech Connect (OSTI)

Polarized gas targets of atomic hydrogen and deuterium have significant advantages over conventional polarized targets, e.g. chemical and isotopic purity, large polarization including deuteron tensor polarization, absence of strong magnetic fields, rapid polarization reversal. While in principle the beam of polarized atoms from an atomic beam source (Stern-Gerlach spin separation) can be used as a polarized target, the target thickness achieved is too small for most applications. We propose to increase the target thickness by injecting the polarized atoms into a storage cell. Provided the atoms survive several hundred wall collisions without losing their polarization, it will be possible to achieve a target thickness of 10{sup 13} to 10{sup 14} atoms/cm{sup 2} by injection of polarized atoms from an atomic-beam source into suitable cells. Such targets are very attractive as internal targets in storage rings.

Haeberli, W.

1992-02-01T23:59:59.000Z

369

Development of a hydrogen and deuterium polarized gas target for application in storage rings  

SciTech Connect (OSTI)

Polarized gas targets of atomic hydrogen and deuterium have significant advantages over conventional polarized targets, e.g. chemical and isotopic purity, large polarization including deuteron tensor polarization, absence of strong magnetic fields, rapid polarization reversal. While in principle the beam of polarized atoms from an atomic beam source (Stern-Gerlach spin separation) can be used as a polarized target, the target thickness achieved is too small for most applications. We propose to increase the target thickness by injecting the polarized atoms into a storage cell. Provided the atoms survive several hundred wall collisions without losing their polarization, it will be possible to achieve a target thickness of 10{sup 13} to 10{sup 14} atoms/cm{sup 2} by injection of polarized atoms from an atomic-beam source into suitable cells. Such targets are very attractive as internal targets in storage rings.

Haeberli, W.

1992-02-01T23:59:59.000Z

370

Pt loaded carbon aerogel catalyst for catalytic exchange reactions between water and hydrogen gas  

Science Journals Connector (OSTI)

We report development and characterization of platinum doped carbon aerogel catalyst for catalytic exchange reactions between water and hydrogen gas. The carbon aerogel with uniformly dispersed platinum nanoparticles was prepared by adding platinum precursor during the sol-gel process. Thereafter colloidal PTFE was mixed with the platinum doped carbon aerogel powder and coated on Dixon rings to obtain hydrophobic catalyst with required mechanical strength. Detailed studies have been carried out to observe the effect of physical characteristics of the catalyst powder (surface area and pore size of aerogels Pt cluster size and its valence state etc) and the different coating parameters (PTFE to Pt-CA ratio and Pt loading on Dixon ring) on volume transfer rate (Ky.a) for H/D reaction. Ky.a values of ?0.8 m3 (STP).s?1. m?3 were obtained for Pt loading of 7% and Pt cluster size of 3 nm at atmospheric pressure.

P. K. Gupta

2013-01-01T23:59:59.000Z

371

An electron beam polarimeter based on scattering from a windowless, polarized hydrogen gas target  

SciTech Connect (OSTI)

Here we present the idea to develop a precision polarimeter for low energy, intense polarized electron beams using a windowless polarized hydrogen gas cell fed by an atomic beam source. This technique would use proven technology used successfully in both the electron scattering experiments: HERMES with 27 GeV electron and positron beams at DESY, and BLAST with 850 MeV electron beams at MIT-Bates. At 100 MeV beam energy, both spin-dependent Mo/ller and elastic electron-proton scattering processes have a high cross section and sizable spin asymmetries. The concept is described and estimates for realistic rates for elastic electron-proton scattering and Mo/ller scattering are presented. A number of important issues which affect the ultimate systematic uncertainty are identified.

Bernauer, Jan; Milner, Richard [Laboratory for Nuclear Science, MIT, Cambridge, MA, 02139 (United States)

2013-11-07T23:59:59.000Z

372

Plasma steam reforming of E85 for hydrogen rich gas production  

Science Journals Connector (OSTI)

E85 (85?vol% ethanol and 15?vol% gasoline) is a partly renewable fuel that is increasing in supply availability. Hydrogen production from E85 for fuel cell or internal combustion engine applications is a potential method for reducing CO2 emissions. Steam reforming of E85 using a nonthermal plasma (pulse corona discharge) reactor has been exploited at low temperature (200300?C) without external heating, diluent gas, oxidant or catalyst in this work. Several operational parameters, including the discharge current, E85 concentration and feed flow rate, have been investigated. The results show that hydrogen rich gases (6367% H2 and 2229% CO, with small amounts of CO2, C2 hydrocarbons and CH4) can be produced by this method. A comparison with ethanol reforming and gasoline reforming under identical conditions has also been made and the behaviour of E85 reforming is found to be close to that of ethanol reforming with slightly higher C2 hydrocarbons yields.

Xinli Zhu; Trung Hoang; Lance L Lobban; Richard G Mallinson

2011-01-01T23:59:59.000Z

373

Nanocomposite thin films for high temperature optical gas sensing of hydrogen  

DOE Patents [OSTI]

The disclosure relates to a plasmon resonance-based method for H.sub.2 sensing in a gas stream at temperatures greater than about 500.degree. C. utilizing a hydrogen sensing material. The hydrogen sensing material is comprised of gold nanoparticles having an average nanoparticle diameter of less than about 100 nanometers dispersed in an inert matrix having a bandgap greater than or equal to 5 eV, and an oxygen ion conductivity less than approximately 10.sup.-7 S/cm at a temperature of 700.degree. C. Exemplary inert matrix materials include SiO.sub.2, Al.sub.2O.sub.3, and Si.sub.3N.sub.4 as well as modifications to modify the effective refractive indices through combinations and/or doping of such materials. At high temperatures, blue shift of the plasmon resonance optical absorption peak indicates the presence of H.sub.2. The method disclosed offers significant advantage over active and reducible matrix materials typically utilized, such as yttria-stabilized zirconia (YSZ) or TiO.sub.2.

Ohodnicki, Jr., Paul R.; Brown, Thomas D.

2013-04-02T23:59:59.000Z

374

An impact analysis of landfill for waste disposal on climate change: Case study of Sudokwon Landfill Site 2nd Landfill in Korea  

Science Journals Connector (OSTI)

The impact of waste landfill on climate change was analyzed by comparing...4 emission from landfill with the potential energy conversion. For this...4 were used against Sudokwon Landfill Site 2nd Landfill, which ...

Seung Kyu Chun; Young Shin Bae

2012-11-01T23:59:59.000Z

375

Experimental study on combustion characteristics of a spark-ignition engine fueled with natural gashydrogen blends combining with EGR  

Science Journals Connector (OSTI)

An experimental study on the effect of hydrogen fraction and EGR rate on the combustion characteristics of a spark-ignition engine fueled with natural gashydrogen blends was investigated. The results show that flame development duration, rapid combustion duration and total combustion duration are increased with the increase of EGR rate and decreased with the increase of hydrogen fraction in the blends. Hydrogen addition shows larger influence on flame development duration than that on rapid combustion duration. The coefficient of variation of the indicated mean effective pressure increases with the increase of EGR rate. And hydrogen addition into natural gas decreases the coefficient of variation of the indicated mean effective pressure, and this effectiveness becomes more obviously at high EGR rate. Engine fueled with natural gashydrogen blends combining with proper EGR rate can realize the stable low temperature combustion in gas engine.

Erjiang Hu; Zuohua Huang; Bing Liu; Jianjun Zheng; Xiaolei Gu

2009-01-01T23:59:59.000Z

376

Combustion Characteristics and Heat Release Analysis of a Spark-Ignited Engine Fueled with Natural Gas?Hydrogen Blends  

Science Journals Connector (OSTI)

It can be seen that the laminar-burning velocity of hydrogen is 5 times that of natural gas and that the quenching distance of hydrogen is one-third that of natural gas, while the latter is beneficial to reduce the unburned hydrocarbons near the wall and from the top-land crevice. ... The signal of cylinder pressure was acquired for every 0.5 deg CA, the acquisition process covered 254 completed cycles, and the averaged value of these 254 cycles was outputted as the pressure data for calculation of the combustion parameters. ... Two factors are considered to influence the cylinder pressure:? one is the increase in flame propagation speed or combustion speed with the increase of the hydrogen fraction in the blends, and this will cause a rapid rising in the cylinder pressure and bring a higher value of the peak cylinder pressure; another is the decrease in the heating value of the fuel blends with the increase of the hydrogen fraction in natural gas?hydrogen blends, and this will decrease the volumetric heat release rate and the cylinder pressure rising, leading to the lower value of the peak cylinder pressure. ...

Zuohua Huang; Bing Liu; Ke Zeng; Yinyu Huang; Deming Jiang; Xibin Wang; Haiyan Miao

2007-08-15T23:59:59.000Z

377

Livingston Parish Landfill Methane Recovery Project (Feasibility Study)  

SciTech Connect (OSTI)

The Woodside Landfill is owned by Livingston Parish, Louisiana and is operated under contract by Waste Management of Louisiana LLC. This public owner/private operator partnership is commonplace in the solid waste industry today. The landfill has been in operation since approximately 1988 and has a permitted capacity of approximately 41 million cubic yards. Based on an assumed in-place waste density of 0.94 ton per cubic yard, the landfill could have an expected design capacity of 39.3 million tons. The landfill does have an active landfill gas collection and control system (LFGCCS) in place because it meets the minimum thresholds for the New Source Performance Standards (NSPS). The initial LFGCS was installed prior to 2006 and subsequent phases were installed in 2007 and 2010. The Parish received a grant from the United States Department of Energy in 2009 to evaluate the potential for landfill gas recovery and utilization at the Woodside Landfill. This includes a technical and economic feasibility study of a project to install a landfill gas to energy (LFGTE) plant and to compare alternative technologies. The LFGTE plant can take the form of on-site electrical generation, a direct use/medium Btu option, or a high-Btu upgrade technology. The technical evaluation in Section 2 of this report concludes that landfill gas from the Woodside landfill is suitable for recovery and utilization. The financial evaluations in sections 3, 4, and 5 of this report provide financial estimates of the returns for various utilization technologies. The report concludes that the most economically viable project is the Electricity Generation option, subject to the Parishs ability and willingness to allocate adequate cash for initial capital and/or to obtain debt financing. However, even this option does not present a solid return: by our estimates, there is a 19 year simple payback on the electricity generation option. All of the energy recovery options discussed in this report economically stressed. The primary reason for this is the recent fundamental shift in the US energy landscape. Abundant supplies of natural gas have put downward pressure on any project that displaces natural gas or natural gas substitutes. Moreover, this shift appears long-term as domestic supplies for natural gas may have been increased for several hundred years. While electricity prices are less affected by natural gas prices than other thermal projects, they are still significantly affected since much of the power in the Entergy cost structure is driven by natural gas-fired generation. Consequently, rates reimbursed by the power company based on their avoided cost structure also face downward pressure over the near and intermediate term. In addition, there has been decreasing emphasis on environmental concerns regarding the production of thermal energy, and as a result both the voluntary and mandatory markets that drive green attribute prices have softened significantly over the past couple of years. Please note that energy markets are constantly changing due to fundamental supply and demand forces, as well as from external forces such as regulations and environmental concerns. At any point in the future, the outlook for energy prices may change and could deem either the electricity generation or pipeline injection project more feasible. This report is intended to serve as the primary background document for subsequent decisions made at Parish staff and governing board levels.

White, Steven

2012-11-15T23:59:59.000Z

378

Radcalc for windows benchmark study: A comparison of software results with Rocky Flats hydrogen gas generation data  

SciTech Connect (OSTI)

Radcalc for Windows Version 2.01 is a user-friendly software program developed by Waste Management Federal Services, Inc., Northwest Operations for the U.S. Department of Energy (McFadden et al. 1998). It is used for transportation and packaging applications in the shipment of radioactive waste materials. Among its applications are the classification of waste per the US. Department of Transportation regulations, the calculation of decay heat and daughter products, and the calculation of the radiolytic production of hydrogen gas. The Radcalc program has been extensively tested and validated (Green et al. 1995, McFadden et al. 1998) by comparison of each Radcalc algorithm to hand calculations. An opportunity to benchmark Radcalc hydrogen gas generation calculations to experimental data arose when the Rocky Flats Environmental Technology Site (RFETS) Residue Stabilization Program collected hydrogen gas generation data to determine compliance with requirements for shipment of waste in the TRUPACT-II (Schierloh 1998). The residue/waste drums tested at RFETS contain contaminated, solid, inorganic materials in polyethylene bags. The contamination is predominantly due to plutonium and americium isotopes. The information provided by Schierloh (1 998) of RFETS includes decay heat, hydrogen gas generation rates, calculated G{sub eff} values, and waste material type, making the experimental data ideal for benchmarking Radcalc. The following sections discuss the RFETS data and the Radcalc cases modeled with the data. Results are tabulated and also provided graphically.

MCFADDEN, J.G.

1999-07-19T23:59:59.000Z

379

Microsoft Word - Final TTR Landfill Extension EA--December 2006...  

National Nuclear Security Administration (NNSA)

continue until the landfill is closed. Once the landfill reaches capacity, sources of air pollution associated with the landfill would no longer be present. Waste transport...

380

Landfill Cover Revegetation at the Rocky Flats Environmental...  

Energy Savers [EERE]

Landfill Cover Revegetation at the Rocky Flats Environmental Technology Site Landfill Cover Revegetation at the Rocky Flats Environmental Technology Site Landfill Cover...

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

HMDC Kingsland Landfill Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

HMDC Kingsland Landfill Biomass Facility Jump to: navigation, search Name HMDC Kingsland Landfill Biomass Facility Facility HMDC Kingsland Landfill Sector Biomass Facility Type...

382

Risk assessment of gaseous emissions from municipal solid waste landfill: case study Rafah landfill, Palestine  

Science Journals Connector (OSTI)

This article describes the risk assessment of gaseous emissions from the municipal solid waste at Rafah landfill, Palestine. In this study, Gas-Sim model was used to quantify the gaseous emissions from the landfill and the Land-Gem model was used to verify the results. Risk assessment of both carcinogens and non-carcinogens were performed. Two scenarios were conducted namely with plant uptake and without plant uptake. The scenario with plant uptake revealed that the risk to residents is acceptable for non-carcinogens (risk value 0.45 > 1.0), while the risk to residents is not acceptable for carcinogens (risk value 2.69 10?6 risk to residents is acceptable for non-carcinogens (risk value 0.42 > 1.0), while the risk to residents is acceptable for carcinogens (risk value 2.855 10?7 > 10?6).

Ahmad A. Foul; Mazen Abualtayef; Basel Qrenawi

2014-01-01T23:59:59.000Z

383

Method and apparatus for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

An apparatus and a method are disclosed for converting hydrocarbon fuel or an alcohol into hydrogen gas and carbon dioxide. The apparatus includes a first vessel having a partial oxidation reaction zone and a separate steam reforming reaction zone that is distinct from the partial oxidation reaction zone. The first vessel has a first vessel inlet at the partial oxidation reaction zone and a first vessel outlet at the steam reforming zone. The reformer also includes a helical tube extending about the first vessel. The helical tube has a first end connected to an oxygen-containing source and a second end connected to the first vessel at the partial oxidation reaction zone. Oxygen gas from an oxygen-containing source can be directed through the helical tube to the first vessel. A second vessel having a second vessel inlet and second vessel outlet is annularly disposed about the first vessel. The helical tube is disposed between the first vessel and the second vessel and gases from the first vessel can be directed through second vessel.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H.J. (Cambridge, MA)

2000-01-01T23:59:59.000Z

384

Risk assessment of landfill disposal sites - State of the art  

SciTech Connect (OSTI)

A risk assessment process can assist in drawing a cost-effective compromise between economic and environmental costs, thereby assuring that the philosophy of 'sustainable development' is adhered to. Nowadays risk analysis is in wide use to effectively manage environmental issues. Risk assessment is also applied to other subjects including health and safety, food, finance, ecology and epidemiology. The literature review of environmental risk assessments in general and risk assessment approaches particularly regarding landfill disposal sites undertaken by the authors, reveals that an integrated risk assessment methodology for landfill gas, leachate or degraded waste does not exist. A range of knowledge gaps is discovered in the literature reviewed to date. From the perspective of landfill leachate, this paper identifies the extent to which various risk analysis aspects are absent in the existing approaches.

Butt, Talib E. [Sustainability Centre in Glasgow (SCG), George Moore Building, 70 Cowcaddens Road, Glasgow Caledonian University, Glasgow G4 0BA, Scotland (United Kingdom)], E-mail: t_e_butt@hotmail.com; Lockley, Elaine [Be Environmental Ltd. Suite 213, Lomeshaye Business Village, Turner Road, Nelson, Lancashire, BB9 7DR, England (United Kingdom); Oduyemi, Kehinde O.K. [Built and Natural Environment, Baxter Building, University of Abertay Dundee, Bell Street, Dundee DD1 1HG, Scotland (United Kingdom)], E-mail: k.oduyemi@abertay.ac.uk

2008-07-01T23:59:59.000Z

385

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

SciTech Connect (OSTI)

The work described in this report, to demonstrate and advance this technology, has used two demonstration-scale cells of size (8000 metric tons [tonnes]), sufficient to replicate many heat and compaction characteristics of larger ''full-scale'' landfills. An enhanced demonstration cell has received moisture supplementation to field capacity. This is the maximum moisture waste can hold while still limiting liquid drainage rate to minimal and safely manageable levels. The enhanced landfill module was compared to a parallel control landfill module receiving no moisture additions. Gas recovery has continued for a period of over 4 years. It is quite encouraging that the enhanced cell methane recovery has been close to 10-fold that experienced with conventional landfills. This is the highest methane recovery rate per unit waste, and thus progress toward stabilization, documented anywhere for such a large waste mass. This high recovery rate is attributed to moisture, and elevated temperature attained inexpensively during startup. Economic analyses performed under Phase I of this NETL contract indicate ''greenhouse cost effectiveness'' to be excellent. Other benefits include substantial waste volume loss (over 30%) which translates to extended landfill life. Other environmental benefits include rapidly improved quality and stabilization (lowered pollutant levels) in liquid leachate which drains from the waste.

Don Augenstein

2001-02-01T23:59:59.000Z

386

I 95 Municipal Landfill Phase I Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Municipal Landfill Phase I Biomass Facility Municipal Landfill Phase I Biomass Facility Jump to: navigation, search Name I 95 Municipal Landfill Phase I Biomass Facility Facility I 95 Municipal Landfill Phase I Sector Biomass Facility Type Landfill Gas Location Fairfax County, Virginia Coordinates 38.9085472°, -77.2405153° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.9085472,"lon":-77.2405153,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

387

Environmental Impacts of Landfill Bioreactorcells in Comparison to Former Landfill Techniques  

Science Journals Connector (OSTI)

Former and present landfill techniques at the Filbornaplant in Helsingborg, South ... the waste residue. The results showthat optimised landfill bioreactor-cells have a higherturn-over rate...

Michael Binder; Torleif Bramryd

2001-07-01T23:59:59.000Z

388

Development of a Centrifugal Hydrogen Pipeline Gas Compressor - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

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

5 5 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Francis A. Di Bella, P.E. Concepts ETI, Inc., d.b.a. Concepts NREC 285 Billerica Road, Suite 102 Chelmsford, MA 01824-4174 Phone: (781) 937-4718 Email: fdibella@conceptsnrec.com DOE Managers HQ: Erika Sutherland Phone: (202) 586-3152 Email: Erika.Sutherland@ee.doe.gov GO: Katie Randolph Phone: (720) 356-1759 Email: Katie.Randolph@go.doe.gov Contract Number: DE-FG36-08GO18059 Subcontractors: Texas A&M University, College Station, TX HyGen Industries, Eureka, CA Project Start Date: June 1, 2008 Project End Date: May, 2013 Overall Project Objectives Develop and demonstrate an advanced centrifugal * compressor system for high-pressure hydrogen pipeline transport to support DOE's strategic hydrogen

389

Recirculation of municipal landfill leachate  

E-Print Network [OSTI]

RECIRCULATION OF MUNICIPAL LANDFILL LEACHATE A Thesis by BRIAN JUDE PINKO4ISKI Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1987 Major Subject...: Civil Engineering RECIRCULATION OF MUNICIPAL LANDFILL LEACHATE A Thesis by BRIAN JUDE PINKOWSKI Approved as to style and content by: Charles P. Giammona (Chair of Committee) Roy . Harm, (Member) Kirk W. Brown (Member) Donald A. Maxwel...

Pinkowski, Brian Jude

2012-06-07T23:59:59.000Z

390

Gaseous Hydrogen Delivery Breakout- Strategic Directions for Hydrogen Delivery Workshop  

Broader source: Energy.gov [DOE]

Targets, barriers and research and development priorities for gaseous delivery of hydrogen through hydrogen and natural gas pipelines.

391

Alternative Fuels Data Center: DeKalb County Turns Trash to Gas  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

reductions Related Links Natural Gas Fuel Basics Natural Gas Vehicles Natural Gas Vehicle Emissions Landfills Convert Biogas into RNG (video) DeKalb County Clean Cities Georgia...

392

Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines...  

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

of hydrogen permeation behavior and its impact on hydrogen embrittlement of pipeline steels under high gaseous pressures relevant to hydrogen gas transmission pipeline...

393

Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen  

Broader source: Energy.gov [DOE]

Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

394

Environmental factors influencing methanogenesis from refuse in landfill samples  

Science Journals Connector (OSTI)

Environmental factors influencing methanogenesis from refuse in landfill samples ... Biodegradability of Municipal Solid Waste Components in Laboratory-Scale Landfills ...

K. Rao Gurijala; Joseph M. Suflita

1993-06-01T23:59:59.000Z

395

Hydrogen Storage Materials Discovery via High Throughput Ball Milling and Gas Sorption  

Science Journals Connector (OSTI)

The lack of a high capacity hydrogen storage material is a major barrier to the implementation of the hydrogen economy. To accelerate discovery of such materials, we have developed a high-throughput workflow for screening of hydrogen storage materials in ...

Bin Li; Steven S. Kaye; Conor Riley; Doron Greenberg; Daniel Galang; Mark S. Bailey

2012-05-22T23:59:59.000Z

396

An assessment of remediation measures and effects on groundwater quality at the Oneida County Sanitary Landfill  

SciTech Connect (OSTI)

The Oneida County Sanitary Landfill has operated from 1979 to the present. The four existing landfill cells were constructed based on standards that existed at their time of development from 1979 to 1995. The landfill was initially permitted as a natural attenuation landfill with a silt soil base liner and top cover. Groundwater sampling at the site showed that many constituents exceeded Wisconsin Administrative Code Chapter NR 140 (NR 140) standards throughout the 1980s. Measures that were implemented to remediate landfill impacts on groundwater quality included installation of a leachate/gas extraction system in 1990 and construction of a composite final cover over completed cells in 1994. In 1994, an Environmental Contamination Assessment (ECA) was conducted in accordance with NR 140 to evaluate landfill performance, groundwater quality trends, and future monitoring/remediation measures. Since implementation of the gas/leachate extraction system, there has been a reduction in detected volatile organic compounds in leachate, gas, gas condensate, and groundwater quality samples. Continued monitoring is necessary to evaluate remediation measures.

McGuire, P.; Otterson, S. [Rust Environment & Infrastructure, Sheboygan, WI (United States); Welhouse, G. [Environmental Compliance Consultants, Oshkosh, WI (United States)] [and others

1995-12-31T23:59:59.000Z

397

Municipal Solid WasteMunicipal Solid Waste Landfills In CitiesLandfills In Cities  

E-Print Network [OSTI]

Municipal Solid WasteMunicipal Solid Waste Landfills In CitiesLandfills In Cities ArunArun PurandarePurandare Eco Designs India Pvt. Ltd.Eco Designs India Pvt. Ltd. #12;What is a Landfill? A sanitary landfill refers to an engineered facility for the disposal of MSW designed and operated

Columbia University

398

Municipal Solid Waste Landfills The following Oklahoma landfills currently accept dead livestock. As each facility has different guidelines and  

E-Print Network [OSTI]

Municipal Solid Waste Landfills The following Oklahoma landfills currently accept dead livestock Adair Cherokee Nation Landfill 918-696-5342 Canadian OEMA Landfill 405-262-0161 Call ahead Carter Southern Okla. Regional Disposal Landfill 580-226-1276 Comanche City of Lawton Landfill 580

Balasundaram, Balabhaskar "Baski"

399

The effect of a micro bubble dispersed gas phase on hydrogen isotope transport in liquid metals under nuclear irradiation  

E-Print Network [OSTI]

The present work intend to be a first step towards the understanding and quantification of the hydrogen isotope complex phenomena in liquid metals for nuclear technology. Liquid metals under nuclear irradiation in,e.g., breeding blankets of a nuclear fusion reactor would generate tritium which is to be extracted and recirculated as fuel. At the same time that tritium is bred, helium is also generated and may precipitate in the form of nano bubbles. Other liquid metal systems of a nuclear reactor involve hydrogen isotope absorption processes, e.g., tritium extraction system. Hence, hydrogen isotope absorption into gas bubbles modelling and control may have a capital importance regarding design, operation and safety. Here general models for hydrogen isotopes transport in liquid metal and absorption into gas phase, that do not depend on the mass transfer limiting regime, are exposed and implemented in OpenFOAMR CFD tool for 0D to 3D simulations. Results for a 0D case show the impact of a He dispersed phase of na...

Fradera, Jorge

2013-01-01T23:59:59.000Z

400

Study on capacity optimization of PEM fuel cell and hydrogen mixing gas-engine compound generator  

Science Journals Connector (OSTI)

Development of a small-scale power source not dependent on commercial power may result in various effects. For example, it may eliminate the need for long distance power-transmission lines, and mean that the amount of green energy development is not restricted to the dynamic characteristics of a commercial power grid. Moreover, the distribution of the independent energy source can be optimized with regionality in mind. This paper examines the independent power supply system relating to hydrogen energy. Generally speaking, the power demand of a house tends to fluctuate considerably over the course of a day. Therefore, when introducing fuel cell cogeneration into an apartment house, etc., low-efficiency operations in a low-load region occur frequently in accordance with load fluctuation. Consequently, the hybrid cogeneration system (HCGS) that uses a solid polymer membrane-type fuel cell (PEM-FC) and a hydrogen mixture gas engine (NEG) together to improve power generation efficiency during partial load of fuel cell cogeneration is proposed. However, since facility costs increase, if the HCGS energy cost is not low compared with the conventional method, it is disadvantageous. Therefore, in this paper, HCGS is introduced into 10 household apartments in Tokyo, and the power generation efficiency, carbon dioxide emissions and optimal capacity of a boiler and heat storage tank are investigated through analysis. Moreover, the system characteristics change significantly based on the capacity of PEM-FC and NEG that compose HCGS. Therefore, in this study, the capacity of PEM-FC and that of NEG are investigated, as well as the power generation efficiency, carbon dioxide emissions and the optimal capacity of a boiler and heat storage tank. Analysis revealed that the annual average power generation efficiency when the capacity of PEM-FC and NEG is 5kW was 27.3%. Meanwhile, the annual average power generation efficiency of HCGS is 1.37 times that of the PEM-FC independent system, and 1.28 times that of the NEG independent system, respectively.

Shinya Obara; Itaru Tanno

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Life cycle assessment of hydrogen production from S-I thermochemical process coupled to a high temperature gas reactor  

SciTech Connect (OSTI)

The purpose of this paper is to quantify the greenhouse gas (GHG) emissions associated to the hydrogen produced by the sulfur-iodine thermochemical process, coupled to a high temperature nuclear reactor, and to compare the results with other life cycle analysis (LCA) studies on hydrogen production technologies, both conventional and emerging. The LCA tool was used to quantify the impacts associated with climate change. The product system was defined by the following steps: (i) extraction and manufacturing of raw materials (upstream flows), (U) external energy supplied to the system, (iii) nuclear power plant, and (iv) hydrogen production plant. Particular attention was focused to those processes where there was limited information from literature about inventory data, as the TRISO fuel manufacture, and the production of iodine. The results show that the electric power, supplied to the hydrogen plant, is a sensitive parameter for GHG emissions. When the nuclear power plant supplied the electrical power, low GHG emissions were obtained. These results improve those reported by conventional hydrogen production methods, such as steam reforming. (authors)

Giraldi, M. R.; Francois, J. L.; Castro-Uriegas, D. [Departamento de Sistemas Energeticos, Facultad de Ingenieria, Universidad Nacional Autonoma de Mexico, Paseo Cuauhnahuac No. 8532, Col. Progreso, C.P. 62550, Jiutepec, Morelos (Mexico)

2012-07-01T23:59:59.000Z

402

T2LBM Version 1.0: Landfill bioreactor model for TOUGH2  

E-Print Network [OSTI]

7 2. LANDFILL BIODEGRADATIONof methanogenic activities in a landfill bioreactor treatingmethane production from landfill bioreactor, J. Env. Eng. ,

Oldenburg, Curtis M.

2001-01-01T23:59:59.000Z

403

Hydrogen & Fuel Cells | Department of Energy  

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

New Jersey's interconnection standards apply statewide to all electric New Jersey's interconnection standards apply statewide to all electric distribution utilities, but not to the small number of municipal utilities and electric cooperatives in the state. The rules, first adopted in 2001, have been revised several times since their inception, most recently in May 2012. The current standards include the following basic provisions: October 16, 2013 Interconnection Standards New Hampshire requires all utilities selling electricity in the state to offer net metering to customers who own or operate systems up to one megawatt (1 MW) in capacity that generate electricity using solar, wind, geothermal, hydro, tidal, wave, biomass, landfill gas, bio-oil or biodiesel. CHP systems that use natural gas, wood pellets, hydrogen, propane or heating oil are also eligible.* The aggregate statewide capacity

404

Hydrogen & Fuel Cells | Department of Energy  

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

Interconnection Standards Interconnection Standards Utah requires the state's only investor-owned utility, Rocky Mountain Power (RMP), and most electric cooperatives* to offer net metering to customers who generate electricity using solar energy, wind energy, hydropower, hydrogen, biomass, landfill gas, geothermal energy, waste gas or waste heat capture and recovery. The bill that established net metering also established some basic rules for interconnection. In April 2010, the Utah Public Service Commission (PSC) adopted final rules for interconnection. The rules described below took effect April 30, 2010. October 16, 2013 Interconnection Standards The Texas Public Utility Regulatory Act (PURA) of 1999 included a provision that "a customer is entitled to have access to on-site distributed

405

Cleanup Agreed on for Niagara Landfill  

Science Journals Connector (OSTI)

Cleanup Agreed on for Niagara Landfill ... The U.S., New York state, and Occidental Chemical finally have reached agreement on how to clean up toxic liquid wastes at the Hyde Park landfill in Niagara, N.Y. ... The cleanup program is a multifaceted scheme designed to remove and destroy the most concentrated of the hazardous liquids buried in the landfill. ...

LOIS EMBER

1985-12-16T23:59:59.000Z

406

New instruments for measuring landfill gases  

Science Journals Connector (OSTI)

New instruments for measuring landfill gases ... The legislation mandates that landfill operators monitor more than 1200 active sites for specific pollution products. ... According to Varian, the instrumentation systems can be adapted easily to meet landfill testing requirements that might be enacted in states other than California. ...

RUDY BAUM

1988-02-01T23:59:59.000Z

407

Nitrous Oxide Emissions from a Municipal Landfill  

Science Journals Connector (OSTI)

Nitrous Oxide Emissions from a Municipal Landfill ... Due to the small area of landfills as compared to other land-use classes, the total N2O emissions from landfills are estimated to be of minor importance for the total emissions from Finland. ...

Janne Rinne; Mari Pihlatie; Annalea Lohila; Tea Thum; Mika Aurela; Juha-Pekka Tuovinen; Tuomas Laurila; Timo Vesala

2005-09-21T23:59:59.000Z

408

An improved approach for hydrogen analysis in metal samples using single laser-induced gas plasma and target plasma at helium atmospheric pressure  

Science Journals Connector (OSTI)

We report in this paper the results of an experimental study on hydrogen analysis of solid samples in high pressure helium ambient gas employing the basic scheme of laser induced breakdown spectroscopy (LIBS)....

S.N. Abdulmadjid; M.M. Suliyanti; K.H. Kurniawan; T.J. Lie; M. Pardede

2006-01-01T23:59:59.000Z

409

Comparative study of laser-induced plasma emission of hydrogen from zircaloy-2 samples in atmospheric and low pressure ambient helium gas  

Science Journals Connector (OSTI)

An experimental study has been performed to demonstrate the advantage of employing ambient helium gas in the spectral quality improvement of hydrogen emission in laser-induced plasma from zircaloy-2 samples at...

M. Pardede; R. Hedwig; M.M. Suliyanti; Z.S. Lie; T.J. Lie

2007-11-01T23:59:59.000Z

410

Low-NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity...  

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

of opportunity fuels will avoid greenhouse gas emissions from the combustion of natural gas and increase the diversity of fuel sources for U.S. industry. Introduction Gas turbines...

411

EIA - Greenhouse Gas Emissions - Methane Emissions  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

credit for renewable energy, including waste-to-energy and landfill gas combustion. Wastewater treatment, including both domestic wastewater (about two-thirds) and industrial...

412

Quantitative hydrogen analysis of zircaloy-4 in laser-induced breakdown spectroscopy with ambient helium gas  

Science Journals Connector (OSTI)

This experiment was carried out to address the need for overcoming the difficulties encountered in hydrogen analysis by means of plasma emission spectroscopy in atmospheric ambient...

Ramli, Muliadi; Fukumoto, Ken-ichi; Niki, Hideaki; Abdulmadjid, Syahrun Nur; Idris, Nasrullah; Maruyama, Tadashi; Kagawa, Kiichiro; Tjia, May On; Pardede, Marincan; Kurniawan, Koo Hendrik; Hedwig, Rinda; Lie, Zener Sukra; Lie, Tjung Jie; Kurniawan, Davy Putra

2007-01-01T23:59:59.000Z

413

Analyzing Natural Gas Based Hydrogen Infrastructure - Optimizing Transitions from Distributed to Centralized H2 Production  

E-Print Network [OSTI]

Hydrogen Refueling Stations SMR station Pipeline Station SMR Module Cost (HGM-1000) SMR Module Output 600 kg/day Compressor Base Cost (

Yang, Christopher; Ogden, Joan M

2005-01-01T23:59:59.000Z

414

Effect of hydrogen addition on criteria and greenhouse gas emissions for a marine diesel engine  

Science Journals Connector (OSTI)

Abstract Hydrogen remains an attractive alternative fuel to petroleum and a number of investigators claim that adding hydrogen to the air intake manifold of a diesel engine will reduce criteria emissions and diesel fuel consumption. Such claims are appealing when trying to simultaneously reduce petroleum consumption, greenhouse gases and criteria pollutants. The goal of this research was to measure the change in criteria emissions (CO, NOx, and PM2.5) and greenhouse gases such as carbon dioxide (CO2), using standard test methods for a wide range of hydrogen addition rates. A two-stroke Detroit Diesel Corporation 12V-71TI marine diesel engine was mounted on an engine dynamometer and tested at three out of the four loads specified in the ISO 8178-4 E3 emission test cycle and at idle. The engine operated on CARB ultra-low sulfur #2 diesel with hydrogen added at flow rates of 0, 22 and 220 SLPM. As compared with the base case without hydrogen, measurements showed that hydrogen injection at 22 and 220 SLPM had negligible influence on the overall carbon dioxide specific emission, EF CO 2 . However, in examining data at each load the data revealed that at idle EF CO 2 was reduced by 21% at 22 SLPM (6.9% of the added fuel energy was from hydrogen) and 37.3% at 220 SLPM (103.1% of the added fuel energy was from hydrogen). At all other loads, the influence of added hydrogen was insignificant. Specific emissions for nitrogen oxides, EF NO x , and fine particulate matters, EF PM 2.5 , showed a trade-off relationship at idle. At idle, EF NO x was reduced by 28% and 41% with increasing hydrogen flow rates, whilst EF PM 2.5 increased by 41% and 86% respectively. For other engine loads, EF NO x and EF PM 2.5 did not change significantly with varying hydrogen flow rates. One of the main reasons for the greater impact of hydrogen at idle is that the contribution of hydrogen to the total fuel energy is much higher at idle as compared to the other loads. The final examination in this paper was the system energy balance when hydrogen is produced by an on-board electrolysis unit. An analysis at 75% engine load showed that hydrogen production increased the overall equivalent fuel consumption by 2.6% at 22 SLPM and 17.7% at 220 SLPM.

Hansheng Pan; Sam Pournazeri; Marko Princevac; J. Wayne Miller; Shankar Mahalingam; M. Yusuf Khan; Varalakshmi Jayaram; William A. Welch

2014-01-01T23:59:59.000Z

415

Performance evaluation of synthetically lined landfills  

SciTech Connect (OSTI)

Landfill design and performance standards for new facilities frequently require the use of geomembrane composite and double liners. Performance data from synthetically lined landfill sites have not been widely available. This report presents data obtained by monitoring three recently constructed synthetically lined landfill sites. Quantities of leachate removed by the primary and secondary collection systems from these landfills were tabulated. The data show that properly designed and constructed synthetic landfill liners provide effective containment of leachate. The environmental protection provided by synthetic liners is equivalent or superior to that of typical clay-lined facilities.

Maule, J. [Champion International Corp., Norway, MI (United States); Lowe, R.K. [STS Consultants Ltd., Green Bay, WI (United States); McCulloch, J.L. [Cross Pointe Paper Co., Park Falls, WI (United States)

1993-12-01T23:59:59.000Z

416

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

SciTech Connect (OSTI)

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

417

Short Mountain Landfill gas recovery project  

SciTech Connect (OSTI)

The Bonneville Power Administration (BPA), a Federal power marketing agency, has statutory responsibilities to supply electrical power to its utility, industrial, and other customers in the Pacific Northwest. BPA's latest load/resource balance forecast, projects the capability of existing resources to satisfy projected Federal system loads. The forecast indicates a potential resource deficit. The underlying need for action is to satisfy BPA customers' demand for electrical power.

Not Available

1992-05-01T23:59:59.000Z

418

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

Coupled to an induction generator, this HCCI genset allowspowered by the induction generator acting as a motor. OnceGenerator Size Weight Specification 6 (In-line) 6.6 L 21 Quart Air-Liquid (DEAC) 1.5 ATM 1800 RPM 35 kW Induction

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

419

Landfill Gas Fueled HCCI Demonstration System  

E-Print Network [OSTI]

chemical- kinetic model of propane HCCI combustion, SAEof a four-cylinder 1.9 l propane- fueled homogeneous chargethe fuel line can use propane from a tank and NG from the

Blizman, Brandon J.; Makel, Darby B.; Mack, John Hunter; Dibble, Robert W.

2006-01-01T23:59:59.000Z

420

Natural Gas and Hydrogen Infrastructure Opportunities Workshop, October 18-19, 2011, Argonne National Laboratory, Argonne, IL : Summary Report.  

SciTech Connect (OSTI)

The overall objective of the Workshop was to identify opportunities for accelerating the use of both natural gas (NG) and hydrogen (H{sub 2}) as motor fuels and in stationary power applications. Specific objectives of the Workshop were to: (1) Convene industry and other stakeholders to share current status/state-of-the-art of NG and H{sub 2} infrastructure; (2) Identify key challenges (including non-technical challenges, such as permitting, installation, codes, and standards) preventing or delaying the widespread deployment of NG and H{sub 2} infrastructure. Identify synergies between NG and H{sub 2} fuels; and (3) Identify and prioritize opportunities for addressing the challenges identified above, and determine roles and opportunities for both the government and industry stakeholders. Plenary speakers and panel discussions summarized the current status of the NG and H{sub 2} infrastructure, technology for their use in transportation and stationary applications, and some of the major challenges and opportunities to more widespread use of these fuels. Two break-out sessions of three groups each addressed focus questions on: (1) infrastructure development needs; (2) deployment synergies; (3) natural gas and fuel cell vehicles (NGVs, FCVs), specialty vehicles, and heavy-duty trucks; (4) CHP (combined heat and power), CHHP (combined hydrogen, heat, and power), and synergistic approaches; and (5) alternative uses of natural gas.

Kumar, R. comp.; Ahmed, S. comp. (Chemical Sciences and Engineering Division)

2012-02-21T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen landfill gas" 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

Low-NOx Gas Turbine Injectors Utilizing Hydrogen-Rich Opportunity Fuels  

Broader source: Energy.gov [DOE]

Gas turbines are commonly used in industry for onsite power and heating needs because of their high efficiency and clean environmental performance. Natural gas is the fuel most frequently used to...

422

Lifecycle impacts of natural gas to hydrogen pathways on urban air quality  

E-Print Network [OSTI]

examined use steam methane reforming (SMR) of natural gas topathways, based on steam methane reforming (SMR) of natural

Wang, Guihua; Ogden, Joan M; Nicholas, Michael A

2007-01-01T23:59:59.000Z

423

Landfill reduction experience in The Netherlands  

Science Journals Connector (OSTI)

Abstract Modern waste legislation aims at resource efficiency and landfill reduction. This paper analyses more than 20years of landfill reduction in the Netherlands. The combination of landfill regulations, landfill tax and landfill bans resulted in the desired landfill reduction, but also had negative effects. A fierce competition developed over the remaining waste to be landfilled. In 2013 the Dutch landfill industry generated 40 million of annual revenue, had 58 million annual costs and therefore incurred an annual loss of 18 million. It is not an attractive option to prematurely end business. There is a risk that Dutch landfill operators will not be able to fulfil the financial obligations for closure and aftercare. Contrary to the polluter pays principle the burden may end up with society. EU regulations prohibiting export of waste for disposal are in place. Strong differentials in landfill tax rate between nations have nevertheless resulted in transboundary shipment of waste and in non-compliance with the self-sufficiency and proximity principles. During the transformation from a disposal society to a recycling society, it is important to carefully plan required capacity and to guide the reorganisation of the landfill sector. At some point, it is no longer profitable to provide landfill services. It may be necessary for public organisations or the state to take responsibility for the continued operation of a safety net in waste management. Regulations have created a financial incentive to pass on the burden of monitoring and controlling the impact of waste to future generations. To prevent this, it is necessary to revise regulations on aftercare and create incentives to actively stabilise landfills.

Heijo Scharff

2014-01-01T23:59:59.000Z

424

Using of produced water associated with oil and gas production as a source of hydrogen: solar electrolysis cell application  

E-Print Network [OSTI]

Abstract In frame of the growing global concerns regarding to the high extent of environmental pollution and its serious consequences on the future of the planet. The seek out for a proper source of clean energy is considered to be a top priority. Where a substantial reduction in a present reliance on fossil fuels is achieved. This objective can not be factual without intensive efforts to find out the appropriate alternative, which are the sustainable and environmentally friendly energy alternatives. The use of hydrogen as an alternative fuel is gaining more and more acceptance as the environmental impact of hydrocarbons becomes more evident. The using of enormous amount of a polluted produced water associated oil and gas production activities to generate the hydrogen by solar hydrolysis cell, is considered to be a multi advantages alternative, where the volume of polluted and environmentally risky water been reduced and a significant volume of hydrogen been gained. This work is an attempt to design of a hydrogen generating station by water electrolysis whose energy resources are solar. The electricity supply is done by photovoltaic cells. The novelty of this work is the using of produced water to generate a clean energy (hydrogen), and in the same time reducing the threats caused by the disposal pits of the vast volume of the produced water at oilfields, which is the biggest challenge to the oil industry and the environment. In this work, the produced water has been electrolyzed by using solar energy. Standard chemical analyses methods have followed to determine the pollutants constitutes in this water. A pilot plant of

Maher A. R; Sadiq Al-baghdadi; Hashim R. Abdolhamid B; Omar A. Mkhatresh B

425

Development of a Low NOx Medium sized Industrial Gas Turbine Operating on Hydrogen-Rich Renewable and Opportunity Fuels  

SciTech Connect (OSTI)

This report presents the accomplishments at the completion of the DOE sponsored project (Contract # DE-FC26-09NT05873) undertaken by Solar Turbines Incorporated. The objective of this 54-month project was to develop a low NOx combustion system for a medium sized industrial gas turbine engine operating on Hydrogen-rich renewable and opportunity Fuels. The work in this project was focused on development of a combustion system sized for 15MW Titan 130 gas turbine engine based on design analysis and rig test results. Although detailed engine evaluation of the complete system is required prior to commercial application, those tasks were beyond the scope of this DOE sponsored project. The project tasks were organized in three stages, Stages 2 through 4. In Stage 2 of this project, Solar Turbines Incorporated characterized the low emission capability of current Titan 130 SoLoNOx fuel injector while operating on a matrix of fuel blends with varying Hydrogen concentration. The mapping in this phase was performed on a fuel injector designed for natural gas operation. Favorable test results were obtained in this phase on emissions and operability. However, the resulting fuel supply pressure needed to operate the engine with the lower Wobbe Index opportunity fuels would require additional gas compression, resulting in parasitic load and reduced thermal efficiency. In Stage 3, Solar characterized the pressure loss in the fuel injector and developed modifications to the fuel injection system through detailed network analysis. In this modification, only the fuel delivery flowpath was modified and the air-side of the injector and the premixing passages were not altered. The modified injector was fabricated and tested and verified to produce similar operability and emissions as the Stage 2 results. In parallel, Solar also fabricated a dual fuel capable injector with the same air-side flowpath to improve commercialization potential. This injector was also test verified to produce 15-ppm NOx capability on high Hydrogen fuels. In Stage 4, Solar fabricated a complete set of injectors and a combustor liner to test the system capability in a full-scale atmospheric rig. Extensive high-pressure single injector rig test results show that 15-ppm NOx guarantee is achievable from 50% to 100% Load with fuel blends containing up to 65% Hydrogen. Because of safety limitations in Solar Test Facility, the atmospheric rig tests were limited to methane-based fuel blends. Further work to validate the durability and installed engine capability would require long-term engine field test.

Srinivasan, Ram

2013-07-31T23:59:59.000Z

426

EA-1707: Closure of Nonradioactive Dangerous Waste Landfill and Solid Waste Landfill, Hanford Site, Richland, Washington  

Broader source: Energy.gov [DOE]

This EA evaluates the potential environmental impacts of closing the Nonradioactive Dangerous Waste Landfill and the Solid Waste Landfill. The Washington State Department of Ecology is a cooperating agency in preparing this EA.

427

Indicating landfill stabilization state by using leachate property from Laogang Refuse Landfill  

Science Journals Connector (OSTI)

Variation and evolution process of leachate can be applied as a reference for landfill stabilization phase. In this work, leachates ... with different ages were collected from Laogang Refuse Landfill, and charact...

Ziyang Lou; Xiaoli Chai; Youcai Zhao

2014-06-01T23:59:59.000Z

428

DEVELOPMENT OF A HYDROGEN MORDENITE SORBENT FOR THE CAPTURE OF KRYPTON FROM USED NUCLEAR FUEL REPROCESSING OFF-GAS STREAMS  

SciTech Connect (OSTI)

A novel new sorbent for the separation of krypton from off-gas streams resulting from the reprocessing of used nuclear fuel has been developed and evaluated. A hydrogen mordenite powder was successfully incorporated into a macroporous polymer binder and formed into spherical beads. The engineered form sorbent retained the characteristic surface area and microporosity indicative of mordenite powder. The sorbent was evaluated for krypton adsorption capacities utilizing thermal swing operations achieving capacities of 100 mmol of krypton per kilogram of sorbent at a temperature of 191 K. A krypton adsorption isotherm was also obtained at 191 K with varying krypton feed gas concentrations. Adsorption/desorption cycling effects were also evaluated with results indicating that the sorbent experienced no decrease in krypton capacity throughout testing.

Mitchell Greenhalgh; Troy G. Garn; Jack D. Law

2014-04-01T23:59:59.000Z

429

Electrochemical treatment of landfill leachate  

Science Journals Connector (OSTI)

Electrochemical methods can offer an elegant contribution towards environmental control as electrons provide a means of removing pollutants by redox reactions. In the process of electrochemical oxidation the main aim has been to convert oxidisable species into carbon dioxide. Leachate originating in landfills is complex wastewater that could exert high environmental impact. This study aims to treat the landfill leachate in order to meet the inland disposal standards. The removal of pollutants was studied with different anode materials in electrochemical process. The treatment of leachate by electrochemical oxidation was carried out in a batch electrolytic parallel plate reactor. The electrochemical process was carried out separately with stainless steel as cathode and anode materials aluminium and titanium/platinum electrodes. The effects of the operating factors such as current density, reaction time, chloride ion concentration, additional electrolyte such as sulphuric acid that influence the removal of pollutant from leachate electrochemically were studied.

C. Ramprasad; A. Navaneetha Gopalakrishnan

2012-01-01T23:59:59.000Z

430

Long-term behavior of municipal solid waste landfills  

Science Journals Connector (OSTI)

A method is presented to predict the long-term behavior of element concentrations (non-metals and metals) in the leachate of a municipal solid waste (MSW) landfill. It is based on water flux and concentration measurements in leachates over one year, analysis of drilled cores from MSW landfills and leaching experiments with these samples. A mathematical model is developed to predict the further evolution of annual flux-weighted mean element concentrations in leachates after the intensive reactor phase, i.e. after the gas production has dropped to a very low level. The results show that the organic components are the most important substances to control until the leachate is compatible with the environment. This state of low emissions, the so-called final storage quality, will take many centuries to be achieved in a moderate climate.

H. Belevi; P. Baccini

1989-01-01T23:59:59.000Z

431

Gravity data as a tool for landfill study  

Science Journals Connector (OSTI)

This paper shows the potential of gravity data to map a buried landfill bottom topography. To this end, a ... gravity inversion method is presented for estimating the landfills bottom depths at discrete points a...

Joo B. C. Silva; Wlamir A. Teixeira; Valria C. F. Barbosa

2009-04-01T23:59:59.000Z

432

Acute and Genetic Toxicity of Municipal Landfill Leachate  

E-Print Network [OSTI]

Municipal solid waste (MSW) landfills have been found to contain many of the same hazardous constituents as found in hazardous waste landfills. Because of the large number of MSW landfills, these sites pose a serious environmental threat...

Brown, K.W.; Schrab, G.E.; Donnelly, K.C.

433

Bioreactor Landfill Research and Demonstration Project Northern Oaks Landfill, Harrison, MI  

SciTech Connect (OSTI)

A bioreactor landfill cell with 1.2-acre footprint was constructed, filled, operated, and monitored at Northern Oaks Recycling and Disposal Facility (NORDF) at Harrison, MI. With a filled volume of 74,239 cubic yards, the cell contained approximately 35,317 tons of municipal solid waste (MSW) and 20,777 tons of cover soil. It was laid on the slope of an existing cell but separated by a geosynthetic membrane liner. After the cell reached a design height of 60 feet, it was covered with a geosynthetic membrane cap. A three-dimensional monitoring system to collect data at 48 different locations was designed and installed during the construction phase of the bioreactor cell. Each location had a cluster of monitoring devices consisting of a probe to monitor moisture and temperature, a leachate collection basin, and a gas sampling port. An increase in moisture content of the MSW in the bioreactor cell was achieved by pumping leachate collected on-site from various other cells, as well as recirculation of leachate from the bioreactor landfill cell itself. Three types of leachate injection systems were evaluated in this bioreactor cell for their efficacy to distribute pumped leachate uniformly: a leachate injection pipe buried in a 6-ft wide horizontal stone mound, a 15-ft wide geocomposite drainage layer, and a 60-ft wide geocomposite drainage layer. All leachate injection systems were installed on top of the compacted waste surface. The distribution of water and resulting MSW moisture content throughout the bioreactor cell was found to be similar for the three designs. Water coming into and leaving the cell (leachate pumped in, precipitation, snow, evaporation, and collected leachate) was monitored in order to carry out a water balance. Using a leachate injection rate of 26 30 gal/yard3, the average moisture content increased from 25% to 35% (wet based) over the period of this study. One of the key aspects of this bioreactor landfill study was to evaluate bioreactor start up and performance in locations with colder climate. For lifts filled during the summer months, methane generation started within three months after completion of the lift. For lifts filled in winter months, very little methane production occurred even eight months after filling. The temperature data indicated that subzero or slightly above zero (oC) temperatures persisted for unusually long periods (more than six months) in the lifts filled during winter months. This was likely due to the high thermal insulation capability of the MSW and the low level of biological activity during start up. This observation indicates that bioreactor landfills located in cold climate and filled during winter months may require mechanisms to increase temperature and initiate biodegradation. Thus, besides moisture, temperature may be the next important factor controlling the biological decomposition in anaerobic bioreactor landfills. Spatial and temporal characterization of leachate samples indicated the presence of low levels of commonly used volatile organic compounds (including acetone, methyl ethyl ketone, methyl isobutyl ketone, and toluene) and metals (including arsenic, chromium, and zinc). Changes and leachate and gaseous sample characteristics correlated with enhanced biological activity and increase in temperature. Continued monitoring of this bioreactor landfill cell is expected to yield critical data needed for start up, design, and operation of this emerging process.

Zhao, Xiando; Voice, Thomas; and Hashsham, Syed A.

2006-08-29T23:59:59.000Z

434

Standard Test Method for Determination of the Susceptibility of Metallic Materials to Hydrogen Gas Embrittlement (HGE)  

E-Print Network [OSTI]

1.1 This test method covers the quantitative determination of the susceptibility of metallic materials to hydrogen embrittlement, when exposed to high pressure gaseous hydrogen. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

435

Determining Air Quality and Greenhouse Gas Impacts of Hydrogen Infrastructure and Fuel Cell Vehicles  

Science Journals Connector (OSTI)

The projection accounts for the gradual retirement of old vehicles and introduction of new vehicles compliant with the Low Emission Vehicle II (LEV II) Standards, including a higher penetration of gasoline hybrids, adopted by the California Air Resources Board through the year 2010 (16). ... Findings suggest that, compared to projections of remarkably improved ICE and hybrid ICE vehicles, hydrogen infrastructure and HFCV deployment will substantially improve air quality in an urban airshed and reduce GHG emissions from passenger vehicles, even when fossil fuels are a significant source of hydrogen. ...

Shane Stephens-Romero; Marc Carreras-Sospedra; Jacob Brouwer; Donald Dabdub; Scott Samuelsen

2009-11-04T23:59:59.000Z

436

Batch methods for enriching trace impurities in hydrogen gas for their further analysis  

DOE Patents [OSTI]

Provided herein are batch methods and devices for enriching trace quantities of impurities in gaseous mixtures, such as hydrogen fuel. The methods and devices rely on concentrating impurities using hydrogen transport membranes wherein the time period for concentrating the sample is calculated on the basis of optimized membrane characteristics, comprising its thickness and permeance, with optimization of temperature, and wherein the enrichment of trace impurities is proportional to the pressure ratio P.sub.hi/P.sub.lo and the volume ratio V.sub.1/V.sub.2, with following detection of the impurities using commonly-available detection methods.

Ahmed, Shabbir; Lee, Sheldon H.D.; Kumar, Romesh; Papdias, Dionissios D.

2014-07-15T23:59:59.000Z

437

Partial Oxidation Gas Turbine for Power and Hydrogen Co-Production from Coal-Derived Fuel in Industrial Applications  

SciTech Connect (OSTI)

The report presents a feasibility study of a new type of gas turbine. A partial oxidation gas turbine (POGT) shows potential for really high efficiency power generation and ultra low emissions. There are two main features that distinguish a POGT from a conventional gas turbine. These are associated with the design arrangement and the thermodynamic processes used in operation. A primary design difference of the POGT is utilization of a non?catalytic partial oxidation reactor (POR) in place of a conventional combustor. Another important distinction is that a much smaller compressor is required, one that typically supplies less than half of the air flow required in a conventional gas turbine. From an operational and thermodynamic point of view a key distinguishing feature is that the working fluid, fuel gas provided by the OR, has a much higher specific heat than lean combustion products and more energy per unit mass of fluid can be extracted by the POGT expander than in the conventional systems. The POGT exhaust stream contains unreacted fuel that can be combusted in different bottoming ycle or used as syngas for hydrogen or other chemicals production. POGT studies include feasibility design for conversion a conventional turbine to POGT duty, and system analyses of POGT based units for production of power solely, and combined production of power and yngas/hydrogen for different applications. Retrofit design study was completed for three engines, SGT 800, SGT 400, and SGT 100, and includes: replacing the combustor with the POR, compressor downsizing for about 50% design flow rate, generator replacement with 60 90% ower output increase, and overall unit integration, and extensive testing. POGT performances for four turbines with power output up to 350 MW in POGT mode were calculated. With a POGT as the topping cycle for power generation systems, the power output from the POGT ould be increased up to 90% compared to conventional engine keeping hot section temperatures, pressures, and volumetric flows practically identical. In POGT mode, the turbine specific power (turbine net power per lb mass flow from expander exhaust) is twice the value of the onventional turbine. POGT based IGCC plant conceptual design was developed and major components have been identified. Fuel flexible fluid bed gasifier, and novel POGT unit are the key components of the 100 MW IGCC plant for co producing electricity, hydrogen and/or yngas. Plant performances were calculated for bituminous coal and oxygen blown versions. Various POGT based, natural gas fueled systems for production of electricity only, coproduction of electricity and hydrogen, and co production of electricity and syngas for gas to liquid and hemical processes were developed and evaluated. Performance calculations for several versions of these systems were conducted. 64.6 % LHV efficiency for fuel to electricity in combined cycle was achieved. Such a high efficiency arise from using of syngas from POGT exhaust s a fuel that can provide required temperature level for superheated steam generation in HRSG, as well as combustion air preheating. Studies of POGT materials and combustion instabilities in POR were conducted and results reported. Preliminary market assessment was performed, and recommendations for POGT systems applications in oil industry were defined. POGT technology is ready to proceed to the engineering prototype stage, which is recommended.

Joseph Rabovitser

2009-06-30T23:59:59.000Z

438

An Approach to Understanding Cohesive Slurry Settling, Mobilization, and Hydrogen Gas Retention in Pulsed Jet Mixed Vessels  

SciTech Connect (OSTI)

The Hanford Waste Treatment and Immobilization Plant (WTP) is being designed and built to pretreat and vitrify a large portion of the waste in Hanfords 177 underground waste storage tanks. Numerous process vessels will hold waste at various stages in the WTP. Some of these vessels have mixing-system requirements to maintain conditions where the accumulation of hydrogen gas stays below acceptable limits, and the mixing within the vessels is sufficient to release hydrogen gas under normal conditions and during off-normal events. Some of the WTP process streams are slurries of solid particles suspended in Newtonian fluids that behave as non-Newtonian slurries, such as Bingham yield-stress fluids. When these slurries are contained in the process vessels, the particles can settle and become progressively more concentrated toward the bottom of the vessels, depending on the effectiveness of the mixing system. One limiting behavior is a settled layer beneath a particle-free liquid layer. The settled layer, or any region with sufficiently high solids concentration, will exhibit non-Newtonian rheology where it is possible for the settled slurry to behave as a soft solid with a yield stress. In this report, these slurries are described as settling cohesive slurries.

Gauglitz, Phillip A.; Wells, Beric E.; Fort, James A.; Meyer, Perry A.

2009-05-22T23:59:59.000Z

439

Redox cycle stability of mixed oxides used for hydrogen generation in the cyclic water gas shift process  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: Fe{sub 2}O{sub 3} modified with CaO, SiO{sub 2} and Al{sub 2}O{sub 3} was studied in cyclic water gas shift reactor. For the first time stability of such oxides were tested for 100 redox cycles. Optimally added oxides significantly improved the activity and the stability of Fe{sub 2}O{sub 3}. Increased stability was attributed to the impediment of neck formation. - Abstract: Repeated cycles of the reduction of Fe{sub 3}O{sub 4} with reductive gas, e.g. hydrogen and subsequent oxidation of the reduced iron material with water vapor can be harnessed as a process for the production of pure hydrogen. The redox behavior of iron oxide modified with various amounts of SiO{sub 2}, CaO and Al{sub 2}O{sub 3} was investigated in the present study. The total amount of the additional metal oxides was always below 15 wt%. The samples were prepared by co-precipitation using urea hydrolysis method. The influence of various metal oxides on the hydrogen production capacity and the material stability was studied in detail in terms of temperature-programmed reduction (TPR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET analysis. Furthermore, the activity and the stability of the samples were tested in repeated reduction with diluted H{sub 2} and re-oxidation cycles with H{sub 2}O. The results indicate that combination of several oxides as promoter increases the stability of the iron oxide material by mitigating the sintering process. The positive influence of the oxides in stabilizing the iron oxide material is attributed to the impediment of neck formation responsible for sintering.

Datta, Pradyot, E-mail: pradyot.datta@gmail.com

2013-10-15T23:59:59.000Z

440

Gas Phase Diagnosis of Disilane/Hydrogen RF Glow Discharge Plasma and Its Application to High Rate Growth of High Quality Amorphous Silicon  

Science Journals Connector (OSTI)

Gas phase diagnosis of disilane/hydrogen plasma was carried out using mass spectrometry. At high growth rate (20 /s) conditions using pure disilane as a source gas, the partial pressure of disilane molecules measured by mass spectrometry was more than one order of magnitude higher than in the case when mono-silane was used as a source gas. The stability of amorphous silicon films prepared from disilane was improved by the hydrogen dilution technique, although the disilane partial pressure in this condition was much higher than in the case when mono-silane was used as a source gas for device quality films. The relation between the gas phase species and the stability of the resulting films is studied. It was found that increase in disilane related signal intensity do not decrease film stability directly.

Wataru Futako; Tomoko Takagi; Tomonori Nishimoto; Michio Kondo; Isamu Shimizu; Akihisa Matsuda

1999-01-01T23:59:59.000Z

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


441

Hydrogeological studies on the mechanical behavior of landfill gases and leachate of the Nanjido Landfill in Seoul, Korea  

Science Journals Connector (OSTI)

?The Nanjido Landfill is the largest uncontrolled landfill in Korea and it causes various kinds of environmental problems. Landfill gases and leachate are recognized as the most serious environmental problems ass...

K. K. Lee; Y. Y. Kim; H. W. Chang; S. Y. Chung

1997-06-01T23:59:59.000Z

442

Hydrogenation apparatus  

DOE Patents [OSTI]

Hydrogenation reaction apparatus is described comprising a housing having walls which define a reaction zone and conduits for introducing streams of hydrogen and oxygen into the reaction zone, the oxygen being introduced into a central portion of the hydrogen stream to maintain a boundary layer of hydrogen along the walls of the reaction zone. A portion of the hydrogen and all of the oxygen react to produce a heated gas stream having a temperature within the range of from 1,100 to 1,900 C, while the boundary layer of hydrogen maintains the wall temperature at a substantially lower temperature. The heated gas stream is introduced into a hydrogenation reaction zone and provides the source of heat and hydrogen for a hydrogenation reaction. There also is provided means for quenching the products of the hydrogenation reaction. The present invention is particularly suitable for the hydrogenation of low-value solid carbonaceous materials to provide high yields of more valuable liquid and gaseous products. 2 figs.

Friedman, J.; Oberg, C. L.; Russell, L. H.

1981-06-23T23:59:59.000Z

443

Production of Hydrogen Gas from Light and the Inorganic Electron Donor Thiosulfate by Rhodopseudomonas palustris  

Science Journals Connector (OSTI)

...control rates of H2 production. The possibility...compounds for H2 production by PNSBs beyond...with hydrogen fuel cells because it has a...potential for H2 production because they can...water along with solar energy to drive...studies with PNSBs, organic compounds are typically...

Jean J. Huang; Erin K. Heiniger; James B. McKinlay; Caroline S. Harwood

2010-10-01T23:59:59.000Z

444

Enhancement of Hydrogen Gas Sensing of Nanocrystalline Nickel Oxide by Pulsed-Laser Irradiation  

E-Print Network [OSTI]

, and energy storage. Industries are dealing with the transport, storage, and use of H2 on a large scaleO that was synthesized by radio frequency (RF) sputtering, and the response value of 55% was reported for 5000 ppm H2 irradiation conditions, a high response of NiO sensors to hydrogen molecule exposure of as little as 2

Khare, Sanjay V.

445

DOE - Office of Legacy Management -- West Lake Landfill - MO...  

Office of Legacy Management (LM)

Lake Landfill - MO 05 FUSRAP Considered Sites Site: West Lake Landfill (MO.05) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition:...

446

Monitoring the Performance of an Alternative Landfill Cover at...  

Office of Environmental Management (EM)

Monitoring the Performance of an Alternative Landfill Cover at the Monticello, Utah, Uranium Mill Tailings Disposal Site Monitoring the Performance of an Alternative Landfill Cover...

447

CHP and Bioenergy Systems for Landfills and Wastewater Treatment...  

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

Systems for Landfills and Wastewater Treatment Plants CHP and Bioenergy Systems for Landfills and Wastewater Treatment Plants There are important issues to consider when selecting...

448

CHP and Bioenergy for Landfills and Wastewater Treatment Plants...  

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

for Landfills and Wastewater Treatment Plants: Market Opportunities CHP and Bioenergy for Landfills and Wastewater Treatment Plants: Market Opportunities This document explores...

449

Models for Hydrologic Design of Evapotranspiration Landfill Covers  

Science Journals Connector (OSTI)

Models for Hydrologic Design of Evapotranspiration Landfill Covers ... The focus of the HELP model is on the man-made features of landfills. ...

Victor L. Hauser; Dianna M. Gimon; James V. Bonta; Terry A. Howell; Robert W. Malone; Jimmy R. Williams

2005-08-05T23:59:59.000Z

450

Briefing: DOE EM Landfill Workshop & Path Forward | Department...  

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

Landfill Workshop & Path Forward Briefing: DOE EM Landfill Workshop & Path Forward By: Office of Groundwater and Soil Remediation Where: SSAB Teleconference 2 Subject: DOE EM...

451

Briefing: Summary and Recommendations of EM Landfill Workshop...  

Office of Environmental Management (EM)

Briefing: Summary and Recommendations of EM Landfill Workshop Briefing: Summary and Recommendations of EM Landfill Workshop The briefing is an independent technical review report...

452

DOE - Office of Legacy Management -- Woburn Landfill - MA 07  

Office of Legacy Management (LM)

Woburn Landfill - MA 07 FUSRAP Considered Sites Site: Woburn Landfill (MA.07) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name:...

453

Leaching of cadmium from pigmented plastics in a landfill site  

Science Journals Connector (OSTI)

Leaching of cadmium from pigmented plastics in a landfill site ... Plastics ending up in soil or landfill environment will eventually be degraded. ...

David C. Wilson; Peter J. Young; Brinley C. Hudson; Grant. Baldwin

1982-09-01T23:59:59.000Z

454

Hydrogen Generator Appliance | Department of Energy  

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

Hydrogen Generator Appliance Hydrogen Generator Appliance Presentation by Gus Block, Nuvera Fuel Cells, at the Natural Gas and Hydrogen Infrastructure Opportunities Workshop held...

455

Hydrogen Storage Basics | Department of Energy  

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

storing hydrogen include: Physical storage of compressed hydrogen gas in high pressure tanks (up to 700 bar) Physical storage of cryogenic liquid hydrogen (cooled to -253C, at...

456

Strategic Directions for Hydrogen Delivery Workshop Proceedings  

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

including water or oil pipelines for hydrogen transport Assess viability of natural gas safety systems when hydrogen is introduced Conduct field demonstra- tion of hydrogen...

457

Hydrogen Storage  

Science Journals Connector (OSTI)

Hydrogen is an important energy carrier, and when used as a fuel, can be considered as an alternate to the major fossil fuels, coal, crude oil, and natural gas, and their derivatives. It has the potential to b...

Prof. Dr. Robert A. Huggins

2010-01-01T23:59:59.000Z

458

Data Summary of Municipal Solid Waste Management Alternatives. Volume VIII: Appendix F - Landfills  

SciTech Connect (OSTI)

While the preceding appendices have focused on the thermochemical approaches to managing municipal solid waste (MSW), this appendix and those that follow on composting and anaerobic digestion address more of the bioconversion process technologies. Landfilling is the historical baseline MSW management option central to every community's solid waste management plan. It generally encompasses shredfills, balefills, landfill gas recovery, and landfill mining. While landfilling is virtually universal in use, it continues to undergo intense scrutiny by the public and regulators alike. Most recently, the US Environmental Protection Agency (EPA) issued its final rule on criteria for designing, operating, monitoring, and closing municipal solid waste landfills. While the Federal government has established nationwide standards and will assist the States in planning and developing their own practices, the States and local governments will carry out the actual planning and direct implementation. The States will also be authorized to devise programs to deal with their specific conditions and needs. While the main body of this appendix and corresponding research was originally prepared in July of 1991, references to the new RCRA Subtitle D, Part 258 EPA regulations have been included in this resubmission (908). By virtue of timing, this appendix is, necessarily, a transition'' document, combining basic landfill design and operation information as well as reference to new regulatory requirements. Given the speed with which landfill practices are and will be changing, the reader is encouraged to refer to Part 258 for additional details. As States set additional requirements and schedules and owners and operators of MSW landfills seek to comply, additional guidance and technical information, including case studies, will likely become available in the literature.

None

1992-10-01T23:59:59.000Z

459

Data summary of municipal solid waste management alternatives. Volume 8, Appendix F, Landfills  

SciTech Connect (OSTI)

While the preceding appendices have focused on the thermochemical approaches to managing municipal solid waste (MSW), this appendix and those that follow on composting and anaerobic digestion address more of the bioconversion process technologies. Landfilling is the historical baseline MSW management option central to every community`s solid waste management plan. It generally encompasses shredfills, balefills, landfill gas recovery, and landfill mining. While landfilling is virtually universal in use, it continues to undergo intense scrutiny by the public and regulators alike. Most recently, the US Environmental Protection Agency (EPA) issued its final rule on criteria for designing, operating, monitoring, and closing municipal solid waste landfills. While the Federal government has established nationwide standards and will assist the States in planning and developing their own practices, the States and local governments will carry out the actual planning and direct implementation. The States will also be authorized to devise programs to deal with their specific conditions and needs. While the main body of this appendix and corresponding research was originally prepared in July of 1991, references to the new RCRA Subtitle D, Part 258 EPA regulations have been included in this resubmission (908). By virtue of timing, this appendix is, necessarily, a ``transition`` document, combining basic landfill design and operation information as well as reference to new regulatory requirements. Given the speed with which landfill practices are and will be changing, the reader is encouraged to refer to Part 258 for additional details. As States set additional requirements and schedules and owners and operators of MSW landfills seek to comply, additional guidance and technical information, including case studies, will likely become available in the literature.

none,

1992-10-01T23:59:59.000Z

460

Gas Separations using Ceramic Membranes  

SciTech Connect (OSTI)

This project has been oriented toward the development of a commercially viable ceramic membrane for high temperature gas separations. A technically and commercially viable high temperature gas separation membrane and process has been developed under this project. The lab and field tests have demonstrated the operational stability, both performance and material, of the gas separation thin film, deposited upon the ceramic membrane developed. This performance reliability is built upon the ceramic membrane developed under this project as a substrate for elevated temperature operation. A comprehensive product development approach has been taken to produce an economically viable ceramic substrate, gas selective thin film and the module required to house the innovative membranes for the elevated temperature operation. Field tests have been performed to demonstrate the technical and commercial viability for (i) energy and water recovery from boiler flue gases, and (ii) hydrogen recovery from refinery waste streams using the membrane/module product developed under this project. Active commercializations effort teaming with key industrial OEMs and end users is currently underway for these applications. In addition, the gas separation membrane developed under this project has demonstrated its economical viability for the CO2 removal from subquality natural gas and landfill gas, although performance stability at the elevated temperature remains to be confirmed in the field.

Paul KT Liu

2005-01-13T23:59:59.000Z

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


461

Survey of the Economics of Hydrogen Technologies  

E-Print Network [OSTI]

Gasification Biomass Pyrolysis Electrolysis Hydrogen Storage Compressed Gas Liquefied Gas Metal Hydride Carbon Hydrogen Production Steam Methane Reforming Noncatalytic Partial Oxidation Coal Gasification Biomass

462

State bans dumping of chemicals in landfill  

Science Journals Connector (OSTI)

State bans dumping of chemicals in landfill ... California governor Edmund G. Brown Jr. has begun a program aimed at eliminating most hazardous-waste chemicals from landfills in that statea goal that will be difficult and costly to achieve. ...

1981-10-26T23:59:59.000Z

463

A new technology for producing hydrogen and adjustable ratio syngas from coke oven gas  

SciTech Connect (OSTI)

About 15 billion Nm{sup 3} coke oven gas (COG) is emitted into the air in Shanxi Province in China as air pollutants. It is also a waste of precious chemical resources. In this study, COG was purified respectively by four methods including refrigeration, fiberglass, silica gel, and molecular sieve. Purified COG was separated by a prism membrane into two gas products. One consists mainly of H{sub 2} ({gt}90 vol %) and the other is rich in CH{sub 4} ({gt}60 vol %) with their exact compositions to vary with the membrane separation pressure and outlet gas flow ratio. The gas rich in CH{sub 4} was partially oxidized with oxygen in a high-temperature fixed-bed quartz reactor charged with coke particles of 10 mm size. At 1200-1300{sup o}C, a CH{sub 4} conversion of {gt}99% could be obtained. The H{sub 2}/CO ratio in the synthesis product gas can be adjusted in the range 0.3-1.4, very favorable for further C1 synthesis. 10 refs., 17 figs., 1t ab.

Jun Shen; Zhi-zhong Wang; Huai-wang Yang; Run-sheng Yao [Taiyuan University of Technology, Taiyuan (China). Department of Chemical Engineering

2007-12-15T23:59:59.000Z

464

The dependence of the methylation of mercury on the landfill stabilization process and implications for the landfill management  

Science Journals Connector (OSTI)

Abstract Mercury species and other chemical characteristics of the leachate from anaerobic and semi-aerobic landfills were analyzed to investigate the factors that control mercury methylation during the landfill stabilization process. At the early landfill stage, the total mercury (THg) and the monomethyl mercury (MMHg) released rapidly and significantly, the \\{THg\\} concentration of the semi-aerobic landfill leachate was obviously higher than that of the anaerobic landfill leachate, while compared with the semi-aerobic landfill, the \\{MMHg\\} concentration in the anaerobic landfill was higher. As the landfill time increased, both of \\{THg\\} and \\{MMHg\\} concentration decreased quickly, the \\{THg\\} concentration in the anaerobic landfill was much higher than that in semi-aerobic landfill, while the \\{MMHg\\} concentration in the anaerobic landfill was lower than that in the semi-aerobic landfill. Generally, the concentrations of dimethyl mercury (DMHg) in the anaerobic landfill leachate were slightly higher than in the semi-aerobic landfill leachate during the stabilization process. A significant positive correlation was found between the \\{DMHg\\} concentrations and the pH value in anaerobic landfill leachate, but this correlation was opposite in the semi-aerobic landfill. The oxidativereductive potential (ORP) condition was found to be the controlling factor of the methylation process during the early stage. However, the chemical characteristics, especially the TOC concentration, appeared to be the dominant factor affecting the methylation process as the landfill time increased.

Xiaoli Chai; Yongxia Hao; Zhonggen Li; Wei Zhu; Wentao Zhao

2015-01-01T23:59:59.000Z

465

Steady-state nonequilibrium temperature gradients in hydrogen gasmetal systems: challenging the second law of thermodynamics  

Science Journals Connector (OSTI)

Differences in gas reaction rates between disparate surfaces have been proposed as a means to achieve steady-state pressure and temperature gradients within a single blackbody cavity, thereby challenging the second law of thermodynamics (Sheehan 1998 Phys. Rev. E 57 6660; Sheehan 2001 Phys. Lett. A 280 185; Capek and Sheehan 2005 Challenges to the Second Law of Thermodynamics (Theory and Experiment) (Fundamental Theories of Physics Series vol 146) (Dordrecht: Springer)). This paper reports on laboratory tests of this hypothesis; specifically, molecular hydrogen is found to dissociate preferentially on rhenium surfaces versus tungsten at identical elevated temperatures and reduced pressures (T?2100K; ). Steady-state nonequilibrium H/H2 ratios over the surfaces suggest that temperature gradients could be maintained under blackbody cavity conditions. Preliminary results from bimetallic blackbody cavity experiments are discussed.

D P Sheehan; J T Garamella; D J Mallin; W F Sheehan

2012-01-01T23:59:59.000Z

466

Reduced and Validated Kinetic Mechanisms for Hydrogen-CO-sir Combustion in Gas Turbines  

SciTech Connect (OSTI)

Rigorous experimental, theoretical, and numerical investigation of various issues relevant to the development of reduced, validated kinetic mechanisms for synthetic gas combustion in gas turbines was carried out - including the construction of new radiation models for combusting flows, improvement of flame speed measurement techniques, measurements and chemical kinetic analysis of H{sub 2}/CO/CO{sub 2}/O{sub 2}/diluent mixtures, revision of the H{sub 2}/O{sub 2} kinetic model to improve flame speed prediction capabilities, and development of a multi-time scale algorithm to improve computational efficiency in reacting flow simulations.

Yiguang Ju; Frederick Dryer

2009-02-07T23:59:59.000Z

467

Cryogenic system with GM cryocooler for krypton, xenon separation from hydrogen-helium purge gas  

SciTech Connect (OSTI)

In the thorium molten salt reactor (TMSR), fission products such as krypton, xenon and tritium will be produced continuously in the process of nuclear fission reaction. A cryogenic system with a two stage GM cryocooler was designed to separate Kr, Xe, and H{sub 2} from helium purge gas. The temperatures of two stage heat exchanger condensation tanks were maintained at about 38 K and 4.5 K, respectively. The main fluid parameters of heat transfer were confirmed, and the structural heat exchanger equipment and cold box were designed. Designed concentrations after cryogenic separation of Kr, Xe and H{sub 2} in helium recycle gas are less than 1 ppb.

Chu, X. X.; Zhang, D. X.; Qian, Y.; Liu, W. [Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 (China); Zhang, M. M.; Xu, D. [Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China)

2014-01-29T23:59:59.000Z

468

Investigation on characteristics of ionization current in a spark-ignition engine fueled with natural gashydrogen blends with BSS de-noising method  

Science Journals Connector (OSTI)

Investigation on ionization current characteristic in a spark-ignition engine fueled with natural gas, natural gashydrogen bends and gasoline was conducted. Blind Source Separation (BSS) de-noising method is employed to separate the ionization current signal from the interference of spark tail generated by ignition discharge. Cylinder pressure was recorded, and local temperature at spark plug gap is calculated using AVL-FIRE simulation code. Results show that the simulated cylinder pressures are in good agreement with those of measured and the spark tail and ionization current can be separated using BSS method. Front flame stage and post flame stage in ionization current can be used to analyze the combustion characteristics of natural gashydrogen blends. De-noised current shows that the appearance of front flame stage and post flame stage (including the peaks in the stages) fueled with natural gas is postponed and compared with that fueled with gasoline, and the appearance of front flame stage and post flame stage advance with the increase of hydrogen fraction in natural gashydrogen blends. In addition, the amplitude of ionization currents in both front flame and post flame (including the two peaks) fueled with natural gas gives lower values compared with those fueled with gasoline and hydrogen addition can increase the amplitude. Maximum post flame current shows similar trend to maximum cylinder pressure and it has good correlation between the timing of maximum post flame current and the timing of maximum cylinder pressure. High correlation coefficient between maximum post flame current and maximum pressure is presented.

Zhongquan Gao; Xiaomin Wu; Hui Gao; Bing Liu; Jie Wang; Xiangwen Meng; Zuohua Huang

2010-01-01T23:59:59.000Z

469

Landfill Instability and Its Implications Operation, Construction, and Design  

E-Print Network [OSTI]

Landfill Instability and Its Implications for Operation, Construction, and Design By: W. Douglas landfill waste slide, a 300,000 cubic yard landfill failure involving a geosynthetic clay liner, and a 100,000 cubic yard landfill failure involving leachate recirculation. Other failures of lesser magnitude also

470

Hydrogen/Natural Gas Blends for Heavy and Light-Duty Applications  

E-Print Network [OSTI]

exhaust emissions that can be achieved relative to both diesel and natural gas alternatives. The design $ For applications that now use diesel engines $ Develop engine configurations that can replace existing diesel that minimizes the surface to volume ratio. However, care must be taken to avoid engine knock. This can require

471

Carbon and Hydrogen Analyses of the Components of a Mixture Utilizing Separation-Combustion Gas Chromatography  

Science Journals Connector (OSTI)

......Utilizing Separation-Combustion Gas Chromatography...temperature copper oxide combustion tube which feeds...solution of brominated hydrocarbons (1% v/v) in...was passed into a combustion tube. Following...Wisconsin) was used to heat the combustion tube...indi- cated by the data of Table II. The......

Sam N. Pennington; Harry D. Brown

1968-10-01T23:59:59.000Z

472

Metal speciation in landfill leachates with a focus on the influence of organic matter  

E-Print Network [OSTI]

fractions of leachates, a cascade filtration protocol was applied directly in the field, under a nitrogen gas atmosphere to avoid metal oxidation. The results of analyses performed on the leachates suggest mobility and natural attenuation in a context of landfill risk assessment are discussed. hal-00605888

Paris-Sud XI, Université de

473

Development and Demonstration of Hydrogen and Compressed Natural Gas (H/CNG) Blend Transit Buses: October 15, 2002-September 30, 2004  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Development and Demonstration Development and Demonstration of Hydrogen and Compressed Natural Gas (H/CNG) Blend Transit Buses October 15, 2002 - September 30, 2004 A. Del Toro SunLine Services Group Thousand Palms, California M. Frailey National Renewable Energy Laboratory Golden, Colorado F. Lynch Hydrogen Components Inc. Littleton, Colorado S. Munshi Westport Innovations Inc. Vancouver, British Columbia, Canada S. Wayne West Virginia University Morgantown, West Virginia Technical Report NREL/TP-540-38707 November 2005 Development and Demonstration of Hydrogen and Compressed Natural Gas (H/CNG) Blend Transit Buses October 15, 2002 - September 30, 2004 A. Del Toro SunLine Services Group Thousand Palms, California M. Frailey National Renewable Energy Laboratory Golden, Colorado

474

The water-gas shift (WGS) reaction (CO + H2O = CO2+ H2) is an important reaction for hydrogen upgrading during fuel  

E-Print Network [OSTI]

-treatment units in practical low-temperature PEM fuel cell systems, whereby the deleterious CO should be totally for hydrogen upgrading during fuel gas processing. Emerging applications in fuel cells require active, non-pyrophoric, and cost-effective catalysts. Along with a new group of platinum catalysts with atomically dispersed Pt

Napp, Nils

475

Cold End Inserts for Process Gas Waste Heat Boilers Air Products, operates hydrogen production plants, which utilize large waste heat boilers (WHB)  

E-Print Network [OSTI]

Cold End Inserts for Process Gas Waste Heat Boilers Overview Air Products, operates hydrogen walls. Air Products tasked our team to design an insert to place in the tubes of the WHB to increase flow velocity, thereby reducing fouling of the WHB. Objectives Air Products wishes that our team

Demirel, Melik C.

476

Industrial Solid Waste Landfill Facilities (Ohio) | Department of Energy  

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

Industrial Solid Waste Landfill Facilities (Ohio) Industrial Solid Waste Landfill Facilities (Ohio) Industrial Solid Waste Landfill Facilities (Ohio) < Back Eligibility Agricultural Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative State/Provincial Govt Utility Program Info State Ohio Program Type Environmental Regulations Provider Ohio Environmental Protection Agency This chapter of the law establishes that the Ohio Environmental Protection Agency provides rules and guidelines for landfills, including those that treat waste to generate electricity. The law provides information for permitting, installing, maintaining, monitoring, and closing landfills. There are no special provisions or exemptions for landfills used to generate electricity. However, the law does apply to landfills that do

477

Public health assessment for Seattle Municipal Landfill/Kent Highlands, Kent, King County, Washington, Region 10. Cerclis No. WAD980639462. Final report  

SciTech Connect (OSTI)

The Seattle Municipal Landfill, better known as the Kent Highlands Landfill, is located in the City of Kent, approximately 14 miles south of the City of Seattle, Washington, at 23076 Military Road South. Surface water settling ponds, a leachate collection system, and gas collection system have been constructed. Only one completed pathway exists, which is the use of Midway Creek by recreationists. However, worst case scenarios were evaluated and there did not appear to be a human health threat. Two potential pathways were analyzed, for landfill gas and ground water. Again the worst case scenarios did not reveal any imminent human health threat.

Not Available

1994-11-23T23:59:59.000Z

478

Resource Assessment for Hydrogen Production: Hydrogen Production...  

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

Administration ERR Estimated Recoverable Reserves FCEV fuel cell electric vehicle GHG greenhouse gas GW gigawatt GWh gigawatt-hour GWdt gigawatt-days thermal H2A Hydrogen...

479

Properties, Behavior and Material Compatibility of Hydrogen, Natural Gas and Blends Materials Testing and Design Requirements for Hydrogen Components and Tanks  

Broader source: Energy.gov [DOE]

These slides were presented at the International Hydrogen Fuel and Pressure Vessel Forum on September 27 29, 2010, in Beijing, China.

480

Hydrogen Purity Standard  

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

Compressed Gas Association Compressed Gas Association Roger A. Smith Technical Director April 26, 2004 Hydrogen Purity Standard Compressed Gas Association 2 Compressed Gas Association ‹ 150 Members „ Industrial Gas Companies „ Equipment Manufacturers „ Other Gas Industry Associations „ Other SDOs ‹ Manufacturers, Fillers, Distributors, and Transporters of Industrial and Medical Gases Compressed Gas Association 3 Hydrogen Activities ‹ Committees „ Hydrogen Fuel Technology „ Bulk Distribution Equipment „ Hazardous Materials Codes „ Gas Specifications „ Cylinders, Valves & PRD's ‹ International „ Europe (EIGA) „ Japan (JIGA) „ Asia (AIGA) „ United Nations Compressed Gas Association 4 Hydrogen Purity Standard ‹ Draft hydrogen purity standard for stationary fuel cells and ICE's in 10 months

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481

Low-Cost, Fiber-Optic Hydrogen Gas Detector Using Guided-Wave, Surface-Plasmon Resonance in Chemochromic Thin Films  

SciTech Connect (OSTI)

Low-cost, hydrogen-gas-leak detectors are needed for many hydrogen applications, such as hydrogen-fueled vehicles where several detectors may be required in different locations on each vehicle. A fiber-optic leak detector could be inherently safer than conventional detectors, because it would remove all detector electronics from the vicinity of potential leaks. It would also provide freedom from electromagnetic interference, a serious problem in fuel-cell-powered electric vehicles. This paper describes the design of a fiber-optic, surface-plasmon-resonance hydrogen detector, and efforts to make it more sensitive, selective, and durable. Chemochromic materials, such as tungsten oxide and certain Lanthanide hydrides, can reversibly react with hydrogen in air while exhibiting significant changes in their optical properties. Thin films of these materials applied to a sensor at the end of an optical fiber have been used to detect low concentrations of hydrogen gas in air. The coatings include a thin silver layer in which the surface plasmon is generated, a thin film of the chemochromic material, and a catalytic layer of palladium that facilitates the reaction with hydrogen. The film thickness is chosen to produce a guided-surface plasmon wave along the interface between the silver and the chemochromic material. A dichroic beam-splitter separates the reflected spectrum into a portion near the resonance and a portion away from the resonance, and directs these two portions to two separate photodiodes. The electronic ratio of these two signals cancels most of the fiber transmission noise and provides a stable hydrogen signal.

Benson, D. K.; Tracy, C. E.; Lee, S-H. (National Renewable Energy Laboratory); Hishmeh, G. A.; Haberman, D. P. (DCH Technologies, Valencia, CA); Ciszek, P. A. (Evergreen Solar, Waltham, MA)

1998-10-20T23:59:59.000Z

482

Inferring temperature uniformity from gas composition measurements in a hydrogen combustion-heated hypersonic flow stream  

SciTech Connect (OSTI)

The application of a method for determining the temperature of an oxygen-replenished air stream heated to 2600 K by a hydrogen burner is reviewed and discussed. The purpose of the measurements is to determine the spatial uniformity of the temperature in the core flow of a ramjet test facility. The technique involves sampling the product gases at the exit of the test section nozzle to infer the makeup of the reactant gases entering the burner. Knowing also the temperature of the inlet gases and assuming the flow is at chemical equilibrium, the adiabatic flame temperature is determined using an industry accepted chemical equilibrium computer code. Local temperature depressions are estimated from heat loss calculations. A description of the method, hardware and procedures is presented, along with local heat loss estimates and uncertainty assessments. The uncertainty of the method is estimated at {+-}31 K, and the spatial uniformity was measured within {+-}35 K.

Olstad, S.J. [Phoenix Solutions Co., Minneapolis, MN (United States)

1995-08-01T23:59:59.000Z

483

Reverse osmosis module successfully treats landfill leachate  

SciTech Connect (OSTI)

By law, modern landfills are to be constructed with double liners to prevent contaminants from leaching into surface and ground water. Despite this design feature, however, both hazardous and non-hazardous compounds do leach from the waste disposed in landfills. The resulting contaminated water, or leachate, must be collected and treated. Rochem Environmental, Inc. (Houston, Texas) has developed a new membrane process, known as the Disc Tube{trademark} system, to remove a variety of contaminants from landfill leachate. 1 ref., 1 fig., 2 tabs.

NONE

1995-03-01T23:59:59.000Z

484

Hydrogen Delivery Liquefaction & Compression  

E-Print Network [OSTI]

Hydrogen Delivery Liquefaction & Compression Raymond Drnevich Praxair - Tonawanda, NY Strategic Initiatives for Hydrogen Delivery Workshop - May 7, 2003 #12;2 Agenda Introduction to Praxair Hydrogen Liquefaction Hydrogen Compression #12;3 Praxair at a Glance The largest industrial gas company in North

485

Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines  

Broader source: Energy.gov [DOE]

Project Objectives: To gain basic understanding of hydrogen permeation behavior and its impact on hydrogen embrittlement of pipeline steels under high gaseous pressures relevant to hydrogen gas transmission pipeline

486

Hydrogen from Coal  

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

Coal Coal Edward Schmetz Office of Sequestration, Hydrogen and Clean Coal Fuels U.S. Department of Energy DOE Workshop on Hydrogen Separations and Purification Technologies September 8, 2004 Presentation Outline ƒ Hydrogen Initiatives ƒ Hydrogen from Coal Central Production Goal ƒ Why Coal ƒ Why Hydrogen Separation Membranes ƒ Coal-based Synthesis Gas Characteristics ƒ Technical Barriers ƒ Targets ƒ Future Plans 2 3 Hydrogen from Coal Program Hydrogen from Coal Program FutureGen FutureGen Hydrogen Fuel Initiative Hydrogen Fuel Initiative Gasification Fuel Cells Turbines Gasification Fuel Cells Turbines Carbon Capture & Sequestration Carbon Capture & Sequestration The Hydrogen from Coal Program Supports the Hydrogen Fuel Initiative and FutureGen * The Hydrogen Fuel Initiative is a $1.2 billion RD&D program to develop hydrogen

487

Waste management health risk assessment: A case study of a solid waste landfill in South Italy  

SciTech Connect (OSTI)

An integrated risk assessment study has been performed in an area within 5 km from a landfill that accepts non hazardous waste. The risk assessment was based on measured emissions and maximum chronic population exposure, for both children and adults, to contaminated air, some foods and soil. The toxic effects assessed were limited to the main known carcinogenic compounds emitted from landfills coming both from landfill gas torch combustion (e.g., dioxins, furans and polycyclic aromatic hydrocarbons, PAHs) and from diffusive emissions (vinyl chloride monomer, VCM). Risk assessment has been performed both for carcinogenic and non-carcinogenic effects. Results indicate that cancer and non-cancer effects risk (hazard index, HI) are largely below the values accepted from the main international agencies (e.g., WHO, US EPA) and national legislation ( and ).

Davoli, E., E-mail: enrico.davoli@marionegri.i [Istituto di Ricerche Farmacologiche 'Mario Negri', Environmental Health Sciences Department, Via Giuseppe La Masa 19, 20156 Milano (Italy); Fattore, E.; Paiano, V.; Colombo, A.; Palmiotto, M. [Istituto di Ricerche Farmacologiche 'Mario Negri', Environmental Health Sciences Department, Via Giuseppe La Masa 19, 20156 Milano (Italy); Rossi, A.N.; Il Grande, M. [Progress S.r.l., Via Nicola A. Porpora 147, 20131 Milano (Italy); Fanelli, R. [Istituto di Ricerche Farmacologiche 'Mario Negri', Environmental Health Sciences Department, Via Giuseppe La Masa 19, 20156 Milano (Italy)

2010-08-15T23:59:59.000Z

488

Geohydrology and groundwater geochemistry at a sub-arctic landfill, Fairbanks, Alaska  

SciTech Connect (OSTI)

The Fairbanks-North Star Borough, Alaska, landfill is located on silt, sand, and gravel deposits of the Tanana River flood plain, about 3 miles south of the city of Fairbanks water supply wells. The landfill has been in operation for about 25 years in this sub-arctic region of discontinuous permafrost. The cold climate limits biological activity within the landfill with corresponding low gas and leachate production. Chloride concentrations, specific conductance, water temperature, and earth conductivity measurements indicate a small plume of leachate flowing to the northwest from the landfill. The leachate remains near the water table as it flows northwestward toward a drainage ditch. Results of computer modeling of this local hydrologic system indicate that some of the leachate may be discharging to the ditch. Chemical data show that higher-than-background concentrations of several ions are present in the plume. However, the concentrations appear to be reduced to background levels within a short distance along the path of groundwater flow from the landfill, and thus the leachate is not expected to affect the water supply wells. 11 refs., 21 figs., 2 tabs.

Downey, J.S.; Sinton, P.O.

1990-01-01T23:59:59.000Z

489

Gaseous and Liquid Hydrogen Storage  

Broader source: Energy.gov [DOE]

Today's state of the art for hydrogen storage includes 5,000- and 10,000-psi compressed gas tanks and cryogenic liquid hydrogen tanks for on-board hydrogen storage.

490

Landfill Leachate Treatment by Reverse Osmosis  

Science Journals Connector (OSTI)

Leachate from landfill sites represents a highly polluted waste water. It containes biodegradable compounds but also inorganic salts and trace recalcitrant pollutants. The reverse osmosis process with or without ...

B. Weber; F. Holz

1991-01-01T23:59:59.000Z

491

Landfill Closure and Reuse of Land  

Science Journals Connector (OSTI)

This section examines the sustainable reuse of existing landfill sites . Sustainability is examined in the context of the existing regulatory authority of the United States Environmental Protection Agency (US...

Dr. Joseph J. Lifrieri Ph.D; PE; CPG

2012-01-01T23:59:59.000Z