ES2008269A6 - Procedimiento para la gasificacion alotermica del carbon y generadoresde gas de lecho fluidizado para llevar a cabo el procedimiento. - Google Patents
Procedimiento para la gasificacion alotermica del carbon y generadoresde gas de lecho fluidizado para llevar a cabo el procedimiento.Info
- Publication number
- ES2008269A6 ES2008269A6 ES8702930A ES8702930A ES2008269A6 ES 2008269 A6 ES2008269 A6 ES 2008269A6 ES 8702930 A ES8702930 A ES 8702930A ES 8702930 A ES8702930 A ES 8702930A ES 2008269 A6 ES2008269 A6 ES 2008269A6
- Authority
- ES
- Spain
- Prior art keywords
- coal
- gas generator
- gasification
- heat
- transfer medium
- 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.)
- Expired
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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/182—Details relating to the spatial orientation of the reactor horizontal
-
- 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
- C10J2300/093—Coal
-
- 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
Abstract
PROCEDIMIENTO PARA LA GASIFICACION ALOTERMICA DE CARBON Y GENERADORES DE GAS DE LECHO FLUIDZADO PARA LLEVAR A CABO EL PROCEDIMIENTO. PROCEDIMIENTO PARA LA GASIFICACION ALOTERMICA DE CARBON CON VAPOR DE AGUA EN UN GENERADOR DE GAS QUE TIENE EN SU INTERIOR TUBOS INTERCAMBIADORES DE CALOR PARA EL MEDIO TRANSPORTADOR DE CALOR. EN ESTE PROCEDIMIENTO EL MEDIO TRANSPORTADOR CALIENTE QUE ENTRA EN EL GENERADOR DE GAS POR LOS TUBOS INTERCAMBIADORES DE CALOR, SE CONDUCE PRIMERO A LA ZONA DE GASIFICACION Y A CONTINUACION A LA ZONA DE PIROLISIS, Y EL CARBON QUE SE HA DE GASIFICAR SE HACE IRCULAR A TRAVES DEL GENERADOR DE GAS A CONTRACORRIENTE, DE TAL MANERA QUE PARA EL CALENTAMIENTO Y PIROLISIS DEL CARBON SE UTILIZA LA CORRIENTE TRANSPORTADORA DE CALOR YA ENFRIADA, MIENTRAS QUE EL CALOR DE GASIFICACION SE EXTRAE DE LA CORRIENTE TRANSPORTADORA DE CALOR TODAVIA CALIENTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863635215 DE3635215A1 (de) | 1986-10-16 | 1986-10-16 | Verfahren zur allothermen kohlevergasung und wirbelbett-gasgenerator zur durchfuehrung des verfahrens |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2008269A6 true ES2008269A6 (es) | 1989-07-16 |
Family
ID=6311834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8702930A Expired ES2008269A6 (es) | 1986-10-16 | 1987-10-14 | Procedimiento para la gasificacion alotermica del carbon y generadoresde gas de lecho fluidizado para llevar a cabo el procedimiento. |
Country Status (13)
Country | Link |
---|---|
US (2) | US5064444A (es) |
EP (1) | EP0329673B1 (es) |
JP (1) | JP2594590B2 (es) |
CN (1) | CN1017998B (es) |
AT (1) | ATE60931T1 (es) |
BR (1) | BR8707836A (es) |
CA (1) | CA1286110C (es) |
DE (2) | DE3635215A1 (es) |
ES (1) | ES2008269A6 (es) |
PL (2) | PL154876B1 (es) |
SU (1) | SU1828465A3 (es) |
WO (1) | WO1988002769A1 (es) |
ZA (1) | ZA877783B (es) |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5439491A (en) * | 1986-10-16 | 1995-08-08 | Bergwerksverband Gmbh | Fluidized bed generator for allothermic gasification of coal |
DE3635215A1 (de) * | 1986-10-16 | 1988-04-28 | Bergwerksverband Gmbh | Verfahren zur allothermen kohlevergasung und wirbelbett-gasgenerator zur durchfuehrung des verfahrens |
DE3828534A1 (de) * | 1988-08-23 | 1990-03-08 | Gottfried Dipl Ing Roessle | Verfahren zur verwertung von energiehaltiger masse, vorrichtung zur durchfuehrung des verfahrens und verwendung eines bei der verwertung anfallenden produkts |
DE3903936A1 (de) * | 1988-11-11 | 1990-05-23 | Gutehoffnungshuette Man | Reaktor fuer allotherme kohlevergasung |
DE4305964A1 (de) * | 1993-02-26 | 1994-09-01 | Rudolf Prof Dr Ing Dr Jeschar | Verfahren zur mehrstufigen thermischen Behandlung von Verbundmaterial im Interesse einer emissions- und reststoffarmen, stofflichen und energetischen Verwertung (Recycling) |
DE4326562C2 (de) * | 1993-08-07 | 1995-06-22 | Gutehoffnungshuette Man | Verfahren und Vorrichtung zur Direktreduktion von Feinerzen bzw. Feinerzkonzentraten |
DE4328379C2 (de) * | 1993-08-24 | 2001-11-29 | Binsmaier Geb Gallin Ast | Modulkraftwerk für die Erzeugung von elektrischer Energie aus Sonnenenergie |
DE4341438C2 (de) * | 1993-12-04 | 2000-07-13 | Binsmaier Hannelore | Modulkraftwerk für die Erzeugung von hauptsächlich Wasserstoff aus Sonnenenergie |
TW245651B (en) * | 1994-02-24 | 1995-04-21 | Babcock & Wilcox Co | Black liquor gasifier |
US5516345A (en) * | 1994-06-30 | 1996-05-14 | Iowa State University Research Foundation, Inc. | Latent heat-ballasted gasifier method |
US5855631A (en) * | 1994-12-02 | 1999-01-05 | Leas; Arnold M. | Catalytic gasification process and system |
US5641327A (en) * | 1994-12-02 | 1997-06-24 | Leas; Arnold M. | Catalytic gasification process and system for producing medium grade BTU gas |
DE19736867C2 (de) * | 1997-08-25 | 2003-01-16 | Montan Tech Gmbh | Verfahren zur allothermen Vergasung von organischen Stoffen und Stoffgemischen |
DE19900116C2 (de) * | 1999-01-05 | 2002-02-14 | Univ Muenchen Tech | Vorrichtung zum Erzeugen von Brenngas durch allotherme Vergasung von Biomasse |
WO2000077128A1 (de) * | 1999-06-09 | 2000-12-21 | Technische Universität München Lehrstuhl Für Thermische Kraftanlagen | Vorrichtung zur vergasung kohlenstoffhaltiger einsatzstoffe |
DE19926202C1 (de) * | 1999-06-09 | 2001-02-22 | Tech Uni Muenchen Lehrstuhl Fu | Vorrichtung zur Vergasung biogener Einsatzstoffe |
DE19948332B4 (de) * | 1999-10-07 | 2005-09-22 | Steer, Thomas, Dr.-Ing. | Verfahren und Vorrichtung zum Gewinnen heizwertreicher Brennstoffe |
DE10010358A1 (de) * | 2000-03-07 | 2001-09-27 | Bsbg Bremer Sonderabfall Berat | Verfahren und Vorrichtung zum Vergasen von brennbarem Material |
US6554061B2 (en) * | 2000-12-18 | 2003-04-29 | Alstom (Switzerland) Ltd | Recuperative and conductive heat transfer system |
US6787742B2 (en) * | 2001-07-23 | 2004-09-07 | Ken Kansa | High-frequency induction heating device |
AU2011253687B2 (en) * | 2006-04-24 | 2013-03-07 | Thermochem Recovery International, Inc. | Fluid bed reactor having a pulse combustor-type heat transfer module |
US7569086B2 (en) * | 2006-04-24 | 2009-08-04 | Thermochem Recovery International, Inc. | Fluid bed reactor having vertically spaced apart clusters of heating conduits |
US20070245628A1 (en) * | 2006-04-24 | 2007-10-25 | Thermochem Recovery International, Inc. | Fluid bed reactor having a pulse combustor-type heat transfer module separated from the compartment of a reaction vessel |
WO2008058347A1 (en) * | 2006-11-17 | 2008-05-22 | Millennium Synfuels, Llc | Manufacture of fuels |
DE102007062414B4 (de) * | 2007-12-20 | 2009-12-24 | Ecoloop Gmbh | Autothermes Verfahren zur kontinuierlichen Vergasung von kohlenstoffreichen Substanzen |
DE102009017854B4 (de) * | 2009-04-17 | 2013-02-21 | Highterm Research Gmbh | Vorrichtung zur Erzeugung von Produktgas aus kohlenstoffhaltigen Einsatzstoffen mit Wärmerohren |
EP2438280A4 (en) | 2009-06-02 | 2014-03-19 | Thermochem Recovery Int Inc | CARBURETTOR WITH INTEGRATED FUEL CELL POWER GENERATION SYSTEM |
DE102009039836A1 (de) * | 2009-09-03 | 2011-03-10 | Karl-Heinz Tetzlaff | Synthesegasreaktor mit beheizter Kokswolke |
CN102465043B (zh) * | 2010-11-01 | 2013-07-31 | 中国科学院过程工程研究所 | 一种固体燃料的多段分级热解气化装置及方法 |
EP2635369B1 (en) | 2010-11-05 | 2016-03-02 | Thermochem Recovery International, Inc. | Solids circulation system and method for capture and conversion of reactive solids |
DE102011015807A1 (de) | 2011-04-01 | 2012-10-04 | H S Reformer Gmbh | Steigerung der Effizienz der Beheizung allothermer Reaktoren |
DE102011075438A1 (de) * | 2011-05-06 | 2012-11-08 | Bilfinger Berger Industrial Services Gmbh | Verfahren und Vorrichtung zur Erzeugung von Synthesegas aus kohlestoffhaltigen Edukten durch Vergasung |
GB2492097B (en) * | 2011-06-21 | 2013-06-12 | Chinook End Stage Recycling Ltd | Improvements in material processing |
CN105584991B (zh) | 2011-09-27 | 2019-05-14 | 国际热化学恢复股份有限公司 | 合成气净化系统和方法 |
DE102011121992B4 (de) * | 2011-12-22 | 2015-02-19 | Josef Wagner | Thermochemische Holzvergasungsanlage mit Festbettreaktor mit doppelt aufsteigender Gegenstromvergasung, Gasreinigung, Gasbereitstellung, Schadstoffverwertung und Schadstoffentsorgung für den Dauerbetrieb mit Gas-Kolbenmotoren und Gasturbinen |
CN103450943B (zh) * | 2013-08-10 | 2015-10-21 | 山西鑫立能源科技有限公司 | 外热式水煤气气化方法 |
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CN104893761B (zh) * | 2015-05-12 | 2017-05-10 | 新奥科技发展有限公司 | 一种联产甲烷及轻质焦油的气化炉 |
CN105219409A (zh) * | 2015-10-27 | 2016-01-06 | 航天长征化学工程股份有限公司 | 一种管式间接加热煤热解装置 |
CN109070156B (zh) | 2016-02-16 | 2021-08-17 | 国际热化学恢复股份有限公司 | 两阶段能量集成产物气体发生系统和方法 |
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US10364398B2 (en) | 2016-08-30 | 2019-07-30 | Thermochem Recovery International, Inc. | Method of producing product gas from multiple carbonaceous feedstock streams mixed with a reduced-pressure mixing gas |
US10197014B2 (en) | 2016-08-30 | 2019-02-05 | Thermochem Recovery International, Inc. | Feed zone delivery system having carbonaceous feedstock density reduction and gas mixing |
US10329506B2 (en) | 2017-04-10 | 2019-06-25 | Thermochem Recovery International, Inc. | Gas-solids separation system having a partitioned solids transfer conduit |
US10717102B2 (en) | 2017-05-31 | 2020-07-21 | Thermochem Recovery International, Inc. | Pressure-based method and system for measuring the density and height of a fluidized bed |
US9920926B1 (en) | 2017-07-10 | 2018-03-20 | Thermochem Recovery International, Inc. | Pulse combustion heat exchanger system and method |
CN107474882B (zh) * | 2017-09-15 | 2020-11-06 | 中科清能燃气技术(北京)有限公司 | 一种煤气化工艺中高温煤气热量回收及空气预热方法 |
US10099200B1 (en) | 2017-10-24 | 2018-10-16 | Thermochem Recovery International, Inc. | Liquid fuel production system having parallel product gas generation |
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CN109959011A (zh) * | 2019-03-26 | 2019-07-02 | 王暐 | 一种气化物料加热的方法和装置 |
US11555157B2 (en) | 2020-03-10 | 2023-01-17 | Thermochem Recovery International, Inc. | System and method for liquid fuel production from carbonaceous materials using recycled conditioned syngas |
US11466223B2 (en) | 2020-09-04 | 2022-10-11 | Thermochem Recovery International, Inc. | Two-stage syngas production with separate char and product gas inputs into the second stage |
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CN115247084B (zh) * | 2022-07-07 | 2023-11-03 | 重庆科技学院 | 基于生物质自热源热解气化的高品质合成气制备系统 |
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US2579397A (en) * | 1943-05-15 | 1951-12-18 | Standard Oil Dev Co | Method for handling fuels |
US2619415A (en) * | 1946-08-15 | 1952-11-25 | Standard Oil Dev Co | Supply of heat to fluidized solids beds for the production of fuel gas |
US2577632A (en) * | 1946-08-27 | 1951-12-04 | Standard Oil Dev Co | Process for supplying plasticizable carbonaceous solids into a gasification zone |
US2634198A (en) * | 1947-06-11 | 1953-04-07 | Hydrocarbon Research Inc | Coal carbonization and gasification |
US2633416A (en) * | 1947-12-03 | 1953-03-31 | Standard Oil Dev Co | Gasification of carbonaceous solids |
US2657124A (en) * | 1948-12-30 | 1953-10-27 | Texas Co | Generation of heating gas from solid fuels |
US2591595A (en) * | 1949-09-29 | 1952-04-01 | Standard Oil Dev Co | Method for controlling the temperature of exothermic reactions such as the gasification of carbonaceous solids |
JPS519762A (en) * | 1972-08-24 | 1976-01-26 | Atad | Futsusatsukin mataha pasutsuurusatsukinkikai |
JPS55439B2 (es) * | 1973-08-18 | 1980-01-08 | ||
US3927996A (en) * | 1974-02-21 | 1975-12-23 | Exxon Research Engineering Co | Coal injection system |
US3932196A (en) * | 1974-12-30 | 1976-01-13 | Union Carbide Corporation | Primary dry cell with gas-venting passageway through the cathode mix |
DE2549784C2 (de) * | 1975-11-06 | 1984-12-20 | Bergwerksverband Gmbh, 4300 Essen | Wirbelschicht-Gasgenerator mit Wärmezufuhr, insbesondere Kernreaktorwärme, von außen |
DE2903985C2 (de) * | 1979-02-02 | 1982-08-26 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zur Erzeugung von H↓2↓- und CO-haltigen Gasen |
IN152976B (es) * | 1980-02-19 | 1984-05-12 | Combustion Eng | |
DE3042142C2 (de) * | 1980-11-03 | 1983-06-23 | Mannesmann AG, 4000 Düsseldorf | Wirbelbett-Gaserzeuger |
DE3112708C2 (de) * | 1981-03-31 | 1985-06-13 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zur Erzeugung von H↓2↓- und CO-haltigen Gasen aus feinkörnigem Brennstoff in der Wirbelschicht mit in diese eingetauchten Wärmetauschern |
DE3136645A1 (de) * | 1981-09-16 | 1983-03-24 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zur dosierung von, insbesondere backenden,brennstoffen in einen wirbelschichtreaktor sowie verfahren zum betreiben einer solchen vorrichtung |
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DE3339061C2 (de) * | 1982-10-30 | 1985-03-28 | Bergwerksverband Gmbh, 4300 Essen | Zellenradschleuse |
DE3635215A1 (de) * | 1986-10-16 | 1988-04-28 | Bergwerksverband Gmbh | Verfahren zur allothermen kohlevergasung und wirbelbett-gasgenerator zur durchfuehrung des verfahrens |
-
1986
- 1986-10-16 DE DE19863635215 patent/DE3635215A1/de active Granted
-
1987
- 1987-10-14 ES ES8702930A patent/ES2008269A6/es not_active Expired
- 1987-10-15 JP JP62506551A patent/JP2594590B2/ja not_active Expired - Lifetime
- 1987-10-15 WO PCT/EP1987/000605 patent/WO1988002769A1/de active IP Right Grant
- 1987-10-15 US US07/348,574 patent/US5064444A/en not_active Expired - Fee Related
- 1987-10-15 PL PL1987287912A patent/PL154876B1/pl unknown
- 1987-10-15 AT AT87907103T patent/ATE60931T1/de not_active IP Right Cessation
- 1987-10-15 BR BR8707836A patent/BR8707836A/pt unknown
- 1987-10-15 EP EP87907103A patent/EP0329673B1/de not_active Expired - Lifetime
- 1987-10-15 PL PL1987268239A patent/PL153818B1/pl unknown
- 1987-10-15 DE DE8787907103T patent/DE3768091D1/de not_active Expired - Fee Related
- 1987-10-15 CA CA000549424A patent/CA1286110C/en not_active Expired - Fee Related
- 1987-10-16 ZA ZA877783A patent/ZA877783B/xx unknown
- 1987-10-16 CN CN87107590A patent/CN1017998B/zh not_active Expired
-
1989
- 1989-04-14 SU SU894613905A patent/SU1828465A3/ru active
-
1992
- 1992-10-19 US US07/963,284 patent/US5346515A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3635215A1 (de) | 1988-04-28 |
US5064444A (en) | 1991-11-12 |
CN87107590A (zh) | 1988-07-06 |
US5346515A (en) | 1994-09-13 |
EP0329673A1 (de) | 1989-08-30 |
ZA877783B (en) | 1988-09-28 |
BR8707836A (pt) | 1989-08-15 |
EP0329673B1 (de) | 1991-02-20 |
PL154876B1 (en) | 1991-09-30 |
DE3635215C2 (es) | 1990-07-05 |
WO1988002769A1 (fr) | 1988-04-21 |
DE3768091D1 (de) | 1991-03-28 |
SU1828465A3 (en) | 1993-07-15 |
ATE60931T1 (de) | 1991-03-15 |
CN1017998B (zh) | 1992-08-26 |
PL268239A1 (en) | 1988-08-18 |
JPH02500447A (ja) | 1990-02-15 |
PL153818B1 (en) | 1991-06-28 |
CA1286110C (en) | 1991-07-16 |
JP2594590B2 (ja) | 1997-03-26 |
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