WO2006039335B1 - A streamlined methane gas generation system - Google Patents

A streamlined methane gas generation system

Info

Publication number
WO2006039335B1
WO2006039335B1 PCT/US2005/034818 US2005034818W WO2006039335B1 WO 2006039335 B1 WO2006039335 B1 WO 2006039335B1 US 2005034818 W US2005034818 W US 2005034818W WO 2006039335 B1 WO2006039335 B1 WO 2006039335B1
Authority
WO
WIPO (PCT)
Prior art keywords
mixed gas
high purity
streamlined
gas stream
stream
Prior art date
Application number
PCT/US2005/034818
Other languages
French (fr)
Other versions
WO2006039335A3 (en
WO2006039335A2 (en
Inventor
Valerie A Maston
Original Assignee
New Energy Solutions Inc
Valerie A Maston
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Energy Solutions Inc, Valerie A Maston filed Critical New Energy Solutions Inc
Publication of WO2006039335A2 publication Critical patent/WO2006039335A2/en
Publication of WO2006039335A3 publication Critical patent/WO2006039335A3/en
Publication of WO2006039335B1 publication Critical patent/WO2006039335B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P3/00—Preparation of elements or inorganic compounds except carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Biotechnology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A process for producing high purity methane gas from digested or composted organic materials as well as a high purity methane gas generation system that operates in accordance with this process are provided. The inventive system, which is capable of delivering at least about 0.5 slpm of methane product gas, is streamlined in design and provides a more reliable and cost-effective source of renewable methane gas.

Claims

AMENDED CLAIMS[Received by the International Bureau on 21 June 2006 (21.06.2006)]
1. A streamlined process for producing high purity methane gas from digested or composted organic materials, which comprises:
(a) digesting or composting organic materials to produce a mixed gas stream containing methane, carbon dioxide and trace impurities including hydrogen sulfide, nitrogen and oxygen, wherein the mixed gas stream may also contain small quantities of water;
(b) directing the biogas or mixed gas stream to a first mixed gas purification device for removing at least a portion of the hydrogen sulfide from the mixed gas stream;
(c) directing portions of the desulfurized, mixed gas stream to one or more mixed gas-driven engines that power one or more compressors, wherein the mixed gas stream serves to fuel the one or more mixed gas-driven engines;
(d) directing remaining portions of the desulfurized, mixed gas stream to the one or more compressors for compressing the mixed gas stream; and
(e) directing the compressed, desulfurized, mixed gas stream to a second mixed gas purification device for removing at least a portion of the carbon dioxide and any excess nitrogen from the mixed gas stream to produce a high purity methane gas product stream, wherein the second mixed gas purification device is selected from the group of a membrane-based separation device, a pressure swing absorption device, and a combination of a membrane-based separation device and a pressure swing absorption device.
2. The streamlined process for producing high purity methane gas of claim 1, wherein the biogas or mixed gas stream is produced by anaerobically digesting the organic materials.
3. The streamlined process for producing high purity methane gas of claim 1 , which further comprises directing portions of the mixed gas stream or desulfurized, mixed gas stream to one or more mixed gas-driven engines for powering one or more generators.
4. A streamlined process for producing high purity methane gas from digested or composted organic materials, which comprises:
(a) digesting or composting organic materials to produce a mixed gas stream containing methane, carbon dioxide and trace impurities including hydrogen 17 sulfide, nitrogen and oxygen, wherein the mixed gas stream may also contain small quantities of water;
18
(b) directing the mixed gas stream to means for: (i) removing at least a portion of any water contained in the mixed gas stream; (ii) aerating the mixed gas stream; and (iii) heating the mixed gas stream to a temperature ranging from about 15 to about 33 0C;
(c) directing the condensed, aerated and heated mixed gas stream to a first mixed gas purification device for removing at least a portion of the hydrogen sulfide contained therein;
(d) directing a portion of the desulfurized, mixed gas stream to one or more mixed gas-driven engines for fueling same, wherein the one or more mixed gas- driven engines power one or more compressors;
(e) directing remaining portions of the desulfurized, mixed gas stream to the one or more compressors for compressing the mixed gas stream; and
(f) directing the compressed, desulfurized, mixed gas stream to a second mixed gas purification device for removing at least a portion of the carbon dioxide and any excess nitrogen contained therein to produce a high purity methane gas product stream, wherein the second mixed gas purification device is selected from the group of a membrane-based separation device, a pressure swing absorption device, and a combination of a membrane-based separation device and a pressure swing absorption device.
5. The streamlined process for producing high purity methane gas of claim 4, wherein the mixed gas stream is produced by anaerobically digesting the organic materials.
6. The streamlined process for producing high purity methane gas of claim 4, which further comprises directing portions of the mixed gas stream or desulfurized, mixed gas stream to one or more mixed gas-driven engines for powering one or more generators.
7. The streamlined process for producing high purity methane gas of claim 4, which further comprises directing the high purity methane gas product stream to means for neutralizing sudden pressure surges in the product stream.
8. A streamlined, high purity methane gas generation system, which comprises: 19
(a) one or more devices for digesting and/or composting organic materials to produce a mixed gas stream containing methane, carbon dioxide and trace impurities including hydrogen sulfide, nitrogen and oxygen;
(b) a first mixed gas purification device, which serves to remove at least a portion of the hydrogen sulfide from the mixed gas stream, wherein the first
20 mixed gas purification device is in fluid communication with the one or more devices for digesting and/or composting organic materials;
(c) at least one mixed gas-driven compressor, which serves to compress the desulfurized, mixed gas stream, wherein the at least one mixed gas-driven compressor is in fluid communication with the first mixed gas purification device; and
(d) a second mixed gas purification device, which serves to remove at least a portion of the carbon dioxide and any excess nitrogen from the compressed, desulfurized, mixed gas stream to produce a high purity methane gas product stream, wherein the second mixed gas purification device is in fluid communication with the at least one mixed gas-driven compressor, and wherein the second mixed gas purification device is selected from the group of a membrane-based separation device, a pressure swing absorption device, and a combination of a membrane-based separation device and a pressure swing absorption device.
9. The streamlined, high purity methane gas generation system of claim 8, wherein the system is self-sustaining during operation, requiring no outside sources of energy.
10. The streamlined, high purity methane gas generation system of claim 8, wherein the one or more devices for digesting and/or composting organic materials comprises one or more anaerobic digesters.
11. The streamlined, high purity methane gas generation system of daim 8, which further comprises one or more generators which are powered by one or more mixed gas-driven engines,
12. The streamlined, high purity methane gas generation system of claim 8, wherein the second mixed gas purification device is a pressure swing absorption device that comprises at least two molecular sieve chambers.
13. The streamlined, high purity methane gas generation system of claim 12, wherein the pressure swing absorption device comprises a housing and from about 5 to about 10 molecular sieve chambers contained within the housing.
14. The streamlined, high purity methane gas generation system of claim 8, which further comprises one or more high pressure, mixed gas-driven compressors for further compressing the methane gas product stream, wherein the one or more high 21 pressure, mixed gas-driven compressors are in fluid communication with the second mixed gas purification device.
22
15. The streamlined, high purity methane gas generation system of claim 8, which produces up to 3,000 standard liters per minute of methane gas at pressures ranging from about 1.0 to about 1.4 megapascals, wherein the methane gas has a purity level of greater than 90%.
16. A streamlined, high purity methane gas generation system, which comprises:
(a) one or more devices for digesting and/or composting organic materials to produce a mixed gas stream containing methane, carbon dioxide and trace impurities including hydrogen sulfide, nitrogen and oxygen;
(b) means for removing at least a portion of any water contained in the mixed gas stream, which is in fluid communication with the one or more devices for digesting and/or composting organic materials;
(c) means for aerating the mixed gas stream, which is in fluid communication with the one or more devices for digesting and/or composting organic materials;
(d) means for heating the mixed gas stream to a temperature ranging from about 15 to about 33 0C, which is in fluid communication with the one or more devices for digesting and/or composting organic materials;
(e) a first mixed gas purification device, which serves to remove at least a portion of the hydrogen sulfide from the mixed gas stream, wherein the first mixed gas purification device is in fluid communication with the one or more devices for digesting and/or composting organic materials;
(f) at least one mixed gas-driven compressor in fluid communication with the first mixed gas purification device; and
(g) a second mixed gas purification device, which serves to remove at least a portion of the carbon dioxide and any excess nitrogen from the mixed gas stream to produce a methane gas product stream, wherein the second mixed gas purification device is in fluid communication with the at least one mixed-gas driven compressor, and wherein the second mixed gas purification device is selected from the group of a membrane-based separation device, a pressure swing absorption device, and a combination of a membrane-based separation device and a pressure swing absorption device. 23
17. The streamlined, high purity methane gas generation system of claim 16. wherein the system is self-sustaining during operation, requiring no outside sources of energy.
24
18. The streamlined, high purity methane gas generation system of claim 16, wherein the one or more devices for digesting and/or composting organic materials comprises one or more anaerobic digesters.
19. The streamlined, high purity methane gas generation system of claim 16, which further comprises one or more generators which are powered by one or more mixed gas-driven engines.
20. The streamlined, high purity methane gas generation system of claim 16, wherein the second mixed gas purification device is a pressure swing absorption device that comprises at least two molecular sieve chambers.
21. The streamlined, high purity methane gas generation system of claim 20, wherein the pressure swing absorption device comprises a housing and from about 5 to about 10 molecular sieve chambers contained within the housing,
22. The streamlined, high purity methane gas generation system of claim 16, which further comprises one or more high pressure, mixed-gas driven compressors for further compressing the methane gas product stream, wherein the one or more high pressure, mixed gas-driven compressors are in fluid communication with the second mixed gas purification device.
23. The streamlined, high purity methane gas generation system of claim 16, which produces up to 3,000 standard liters per minute of methane gas at pressures ranging from about 1.0 to about 14 megapascals, wherein the methane gas has a purity level of greater than 90%.
PCT/US2005/034818 2004-10-01 2005-09-27 A streamlined methane gas generation system WO2006039335A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/956,803 US20050061001A1 (en) 2003-01-29 2004-10-01 Streamlined methane gas generation system
US10/956,803 2004-10-01

Publications (3)

Publication Number Publication Date
WO2006039335A2 WO2006039335A2 (en) 2006-04-13
WO2006039335A3 WO2006039335A3 (en) 2006-06-01
WO2006039335B1 true WO2006039335B1 (en) 2006-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/034818 WO2006039335A2 (en) 2004-10-01 2005-09-27 A streamlined methane gas generation system

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US (1) US20050061001A1 (en)
WO (1) WO2006039335A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050061001A1 (en) * 2003-01-29 2005-03-24 Maston Valerie A. Streamlined methane gas generation system
AU2006279679B2 (en) * 2005-08-12 2011-08-04 University Of Wyoming Research Corporation D/B/A Western Research Institute Biogenic methane production enhancement systems
US20080016768A1 (en) 2006-07-18 2008-01-24 Togna Keith A Chemically-modified mixed fuels, methods of production and used thereof
CN102137985B (en) 2008-07-02 2014-10-01 西里斯能源公司 Method for optimizing IN-SITU bioconversion of carbon-bearing formations
WO2010124090A2 (en) * 2009-04-23 2010-10-28 Ghd,Inc. Methods and apparatuses to reduce hydrogen sulfide in a biogas
AU2010332294C1 (en) 2009-12-18 2015-06-18 Ciris Energy, Inc. Biogasification of coal to methane and other useful products
CN101831334B (en) * 2010-06-21 2013-03-20 霸州市利华燃气储运有限公司 System for producing power fuel for agricultural machinery by adopting biogas methanation way
US20130224819A1 (en) * 2010-11-05 2013-08-29 Pierre Rivard Methods and apparatuses for producing biogases
FR3011750B1 (en) * 2013-10-15 2017-08-25 Air Liquide PROCESS FOR PRODUCING BIOMETHANE FOR INJECTION IN A GAS NETWORK FROM A PLURALITY OF PRODUCTION SITES AND A SET OF DEVICES FOR ITS IMPLEMENTATION
US11230689B2 (en) * 2017-06-07 2022-01-25 Native American Construction Service, Inc. System and method for generating and storing methane gas using renewable sources
FR3079523B1 (en) * 2018-03-28 2021-03-05 Ifp Energies Now MUTUALIZED PRODUCTION PROCESS OF BIOMETHANE FOR INJECTION INTO THE NATURAL GAS NETWORK
CN113003906B (en) * 2021-02-22 2022-05-10 辽宁科技学院 Chemical composition purifying and separating device and using method

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US4409102A (en) * 1981-11-27 1983-10-11 Central Plants, Inc. Process for removing contaminants from a stream of methane gas
US5871565A (en) * 1997-01-15 1999-02-16 Praxair Technology, Inc. Vacuum/pressure swing adsorption (VPSA) for production of an oxygen enriched gas
US6312505B1 (en) * 1999-11-19 2001-11-06 Energy Process Technologies, Inc. Particulate and aerosol remover
US7033822B2 (en) * 2003-01-29 2006-04-25 New Energy Solutions, Inc. Self-contained and streamlined methane and/or high purity hydrogen generation system
US20050061001A1 (en) * 2003-01-29 2005-03-24 Maston Valerie A. Streamlined methane gas generation system

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US20050061001A1 (en) 2005-03-24
WO2006039335A2 (en) 2006-04-13

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