AU540408B2 - Gasification of pulverulent carboniferous material - Google Patents

Gasification of pulverulent carboniferous material

Info

Publication number
AU540408B2
AU540408B2 AU64282/80A AU6428280A AU540408B2 AU 540408 B2 AU540408 B2 AU 540408B2 AU 64282/80 A AU64282/80 A AU 64282/80A AU 6428280 A AU6428280 A AU 6428280A AU 540408 B2 AU540408 B2 AU 540408B2
Authority
AU
Australia
Prior art keywords
pulverulent
gasification
carboniferous material
carboniferous
pulverulent carboniferous
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU64282/80A
Other languages
English (en)
Other versions
AU6428280A (en
Inventor
Ernst Schuster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carbon Gas Technologie GmbH
Original Assignee
Carbon Gas Technologie GmbH
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 Carbon Gas Technologie GmbH filed Critical Carbon Gas Technologie GmbH
Publication of AU6428280A publication Critical patent/AU6428280A/en
Application granted granted Critical
Publication of AU540408B2 publication Critical patent/AU540408B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/482—Gasifiers with stationary fluidised bed
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C10J3/56—Apparatus; Plants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/74—Construction of shells or jackets
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/78—High-pressure apparatus
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0943—Coke
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C10J2300/0976—Water as steam
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
    • 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
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Cyclones (AREA)
AU64282/80A 1979-11-23 1980-11-11 Gasification of pulverulent carboniferous material Ceased AU540408B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792947222 DE2947222A1 (de) 1979-11-23 1979-11-23 Verfahren zur vergasung von festem, staubfoermig bis stueckigem kohlestoffhaltigem material
DE29472228 1979-11-23

Publications (2)

Publication Number Publication Date
AU6428280A AU6428280A (en) 1981-05-28
AU540408B2 true AU540408B2 (en) 1984-11-15

Family

ID=6086684

Family Applications (1)

Application Number Title Priority Date Filing Date
AU64282/80A Ceased AU540408B2 (en) 1979-11-23 1980-11-11 Gasification of pulverulent carboniferous material

Country Status (11)

Country Link
US (1) US4441892A (US06633600-20031014-M00021.png)
JP (1) JPS5686991A (US06633600-20031014-M00021.png)
AU (1) AU540408B2 (US06633600-20031014-M00021.png)
CA (1) CA1173251A (US06633600-20031014-M00021.png)
CS (1) CS222192B2 (US06633600-20031014-M00021.png)
DE (1) DE2947222A1 (US06633600-20031014-M00021.png)
FR (1) FR2470152A1 (US06633600-20031014-M00021.png)
GB (1) GB2065162B (US06633600-20031014-M00021.png)
NZ (1) NZ195609A (US06633600-20031014-M00021.png)
PL (1) PL125935B1 (US06633600-20031014-M00021.png)
ZA (1) ZA806636B (US06633600-20031014-M00021.png)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949903A1 (de) * 1979-12-12 1981-06-19 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren und vorrichtung zur hydrierenden vergasung von kohle
JPS58140156U (ja) * 1982-03-18 1983-09-21 日本オツト−株式会社 一酸化炭素ガス発生装置
US4474583A (en) * 1982-06-11 1984-10-02 Foster Wheeler Energy Corporation Process for gasifying solid carbonaceous fuels
NL8203582A (nl) * 1982-09-16 1984-04-16 Shell Int Research Werkwijze voor het bereiden van synthesegas.
DD237762A3 (de) * 1984-01-30 1986-07-30 Schwermasch Liebknecht Veb K Verfahren und vorrichtung zur mehrstufigen veredlung von organischen schuettguetern
DE3430212A1 (de) * 1984-08-17 1986-02-27 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren zur gaserzeugung aus kohlenstoffhaltigen brennstoffen
DE3430219A1 (de) * 1984-08-17 1986-02-27 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren zum vergasen von festen brennstoffen
DE3439600A1 (de) * 1984-10-30 1986-05-07 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren zur erzeugung von schwefelarmem gas aus feingemahlenen kohlenstoffhaltigen feststoffen
GB2182344A (en) * 1985-11-04 1987-05-13 British Gas Corp Gasification of solid carbonaceous material
FI80066C (fi) * 1986-01-22 1991-07-29 Ahlstroem Oy Foerfarande och anordning foer foergasning av kolhaltigt material.
DE3630916A1 (de) * 1986-09-11 1988-03-24 Gutehoffnungshuette Man Reaktor zur kohlevergasung
FI873735A0 (fi) * 1987-08-28 1987-08-28 Ahlstroem Oy Foerfarande och anordning foer foergasning av fast kolhaltigt material.
US4865625A (en) * 1988-05-02 1989-09-12 Battelle Memorial Institute Method of producing pyrolysis gases from carbon-containing materials
DE3837587C1 (US06633600-20031014-M00021.png) * 1988-11-05 1990-05-23 Krupp Koppers Gmbh, 4300 Essen, De
FI85909C (fi) * 1989-02-22 1992-06-10 Ahlstroem Oy Anordning foer foergasning eller foerbraenning av fast kolhaltigt material.
US5851246A (en) * 1992-05-07 1998-12-22 Hylsa, S.A. De C.V. Apparatus for gasifying organic materials
US5656044A (en) * 1992-05-07 1997-08-12 Hylsa S.A. De C.V. Method and apparatus for gasification of organic materials
JPH0673384A (ja) * 1992-05-07 1994-03-15 Hylsa Sa 有機物質をガス化するための方法および装置
WO1995025151A1 (en) * 1994-03-16 1995-09-21 American High Temp., Inc. Gas conditioner apparatus and method
US5672184A (en) * 1994-06-24 1997-09-30 Lockheed Corporation Pulse detonation device for coal gasification
NL1000611C2 (nl) * 1995-06-20 1996-12-23 Stork Friesland Bv Inrichting, alsmede werkwijze voor het bereiden van een gesproeidroogd produkt.
US5895508A (en) * 1996-08-09 1999-04-20 The United States Of America As Represented By The United States Department Of Energy Down-flow moving-bed gasifier with catalyst recycle
US6005149A (en) * 1998-08-18 1999-12-21 Engineering, Separation & Recycling, Ltd. Co. Method and apparatus for processing organic materials to produce chemical gases and carbon char
DE19841586A1 (de) * 1998-09-11 2000-03-16 Metallgesellschaft Ag Reaktor zum Vergasen körniger Brennstoffe, die ein Festbett bilden
US20050000162A1 (en) * 2003-04-23 2005-01-06 Bishop Norman G. Method and apparatus for gasifying waste automotive tires to produce high quality solid carbon and non-condensable synthesis gas
CN101111590B (zh) * 2005-02-01 2012-10-03 沙索技术有限公司 操作固定床干底气体发生器的方法
US7621973B2 (en) * 2005-12-15 2009-11-24 General Electric Company Methods and systems for partial moderator bypass
US7569204B2 (en) * 2006-02-27 2009-08-04 Zeropoint Clean Tech, Inc. Apparatus and method for controlling the gas composition produced during the gasification of carbon containing feeds
US20090077891A1 (en) * 2007-09-25 2009-03-26 New York Energy Group Method for producing fuel gas
US20090077889A1 (en) * 2007-09-25 2009-03-26 New York Energy Group Gasifier
DE102008014799A1 (de) * 2008-03-18 2009-09-24 Karl-Heinz Tetzlaff Verfahren und Vorrichtung zur Herstellung von Synthesegas aus Biomasse
DE102008032166A1 (de) * 2008-07-08 2010-01-14 Karl-Heinz Tetzlaff Verfahren und Vorrichtung zur Herstellung von teerfreiem Synthesgas aus Biomasse
US8685122B2 (en) * 2008-08-20 2014-04-01 Ihi Corporation Fuel gasification equipment
DE102011100490A1 (de) * 2011-05-04 2012-11-08 Outotec Oyj Verfahren und Anlage zur Erzeugung und Weiterbehandlung von Brenngas
US9428702B2 (en) * 2011-07-12 2016-08-30 Gas Technology Institute Agglomerator with ceramic matrix composite obstacles
US9150800B2 (en) * 2012-12-10 2015-10-06 Southern Company Second stage gasifier in staged gasification and integrated process
AU2014236648B2 (en) * 2013-03-14 2017-11-23 Synthesis Energy Systems, Inc. Method and apparatus for recycling methane
CN103695066B (zh) * 2013-12-18 2016-03-16 贵州赤天化集团有限责任公司 无烟煤水煤浆气化炉排放细渣的再利用方法及其结构
RU187978U1 (ru) * 2018-01-22 2019-03-26 Виктор Семёнович Злобин Газификатор углеродсодержащего сырья
AU2022381759B2 (en) * 2021-11-04 2024-05-23 Suncoke Technology And Development Llc Foundry coke products, and associated systems, devices, and methods

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908516C (de) * 1954-03-04 Der Niederlaendische Staat Ver Verfahren und Vorrichtung zur Herstellung von Brenngasgemischen aus feinkoernigen Brennstoffen
NL171691C (nl) * 1973-02-26 1983-05-02 Shell Int Research Werkwijze voor de bereiding van waterstof en/of koolmonoxide bevattende gassen door onvolledige verbranding van brandstoffen en afscheiding van de daarbij gevormde vaste stofdeeltjes.
US1913968A (en) * 1928-02-09 1933-06-13 Ig Farbenindustrie Ag Fuel gas
US2677603A (en) * 1947-12-29 1954-05-04 Directie Staatsmijnen Nl Process and apparatus for the gasification of fine-grained carbonaceous substances
DE1023844B (de) * 1951-07-09 1958-02-06 Exxon Research Engineering Co Verfahren zum Inberuehrungbringen von Gasen mit kohleartigen Feststoffen
US3607157A (en) * 1969-07-23 1971-09-21 Texaco Inc Synthesis gas from petroleum coke
US3840354A (en) * 1972-03-23 1974-10-08 Us Interior Three-stage gasification of coal
US4099933A (en) * 1973-06-01 1978-07-11 Hydrocarbon Research, Inc. Process for the multiple zone gasification of coal
US3971139A (en) * 1973-09-14 1976-07-27 Rochon Marcel A Process and apparatus for decreasing moisture content in wood
US3957457A (en) * 1973-10-26 1976-05-18 Squires Arthur M Gasifying coal or coke and discharging ash agglomerates
JPS515303A (en) * 1974-07-03 1976-01-17 Mitsubishi Heavy Ind Ltd Sekitantono gasukasochi
US4032305A (en) * 1974-10-07 1977-06-28 Squires Arthur M Treating carbonaceous matter with hot steam
JPS6033869B2 (ja) * 1976-03-02 1985-08-05 川崎重工業株式会社 溶融冶金滓による石炭ガス化装置
DE2640180B2 (de) * 1976-09-07 1980-10-23 Projektierung Chemische Verfahrenstechnik Gmbh, 4030 Ratingen Verfahren und Vorrichtung zum Vergasen fester Brennstoffe
US4074981A (en) * 1976-12-10 1978-02-21 Texaco Inc. Partial oxidation process
US4168956A (en) * 1977-08-18 1979-09-25 Combustion Engineering, Inc. Method of operating a coal gasifier
DD147188A3 (de) * 1977-09-19 1981-03-25 Lutz Barchmann Verfahren und vorrichtung zur druckvergasung staubfoermiger brennstoffe
DE2742222C2 (de) * 1977-09-20 1987-08-20 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren und Vorrichtung zur Gaserzeugung aus festen Brennstoffen im Wirbelbett
DE2751911B2 (de) * 1977-11-21 1980-11-06 Davy International Ag, 6000 Frankfurt Verfahren und Gas-Generator für die Vergasung von Kohlenstaub
JPS5844112B2 (ja) * 1978-01-19 1983-09-30 大蔵 国井 深層流動層型熱分解装置
DE2925441C2 (de) * 1979-06-23 1982-10-14 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren und Vorrichtung zum Vergasen von Kohle in einer Wirbelschicht
DE2926034C2 (de) * 1979-06-28 1983-12-22 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren und Vorrichtung zur Erzeugung von Gas aus festen Brennstoffen mit einem Wirbelbett

Also Published As

Publication number Publication date
PL125935B1 (en) 1983-06-30
JPS5686991A (en) 1981-07-15
DE2947222A1 (de) 1981-05-27
CA1173251A (en) 1984-08-28
DE2947222C2 (US06633600-20031014-M00021.png) 1987-05-07
CS222192B2 (en) 1983-05-27
AU6428280A (en) 1981-05-28
NZ195609A (en) 1983-03-15
JPH021879B2 (US06633600-20031014-M00021.png) 1990-01-16
US4441892A (en) 1984-04-10
ZA806636B (en) 1981-12-30
GB2065162A (en) 1981-06-24
FR2470152A1 (fr) 1981-05-29
GB2065162B (en) 1983-08-03
PL228009A1 (US06633600-20031014-M00021.png) 1981-09-04

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