IN155024B - - Google Patents

Info

Publication number
IN155024B
IN155024B IN908/DEL/80A IN908DE1980A IN155024B IN 155024 B IN155024 B IN 155024B IN 908DE1980 A IN908DE1980 A IN 908DE1980A IN 155024 B IN155024 B IN 155024B
Authority
IN
India
Prior art keywords
reformer
exchanger
tubes
feed
passed
Prior art date
Application number
IN908/DEL/80A
Other languages
English (en)
Inventor
Andrija Fuderer
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of IN155024B publication Critical patent/IN155024B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • B01J8/062—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes being installed in a furnace
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0283—Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/042—Purification by adsorption on solids
    • C01B2203/043—Regenerative adsorption process in two or more beds, one for adsorption, the other for regeneration
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C01B2203/0816—Heating by flames
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0838—Methods of heating the process for making hydrogen or synthesis gas by heat exchange with exothermic reactions, other than by combustion of fuel
    • C01B2203/0844—Methods of heating the process for making hydrogen or synthesis gas by heat exchange with exothermic reactions, other than by combustion of fuel the non-combustive exothermic reaction being another reforming reaction as defined in groups C01B2203/02 - C01B2203/0294
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0866—Methods of heating the process for making hydrogen or synthesis gas by combination of different heating methods
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0872—Methods of cooling
    • C01B2203/0883—Methods of cooling by indirect heat exchange
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0872—Methods of cooling
    • C01B2203/0888—Methods of cooling by evaporation of a fluid
    • C01B2203/0894—Generation of steam
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1005—Arrangement or shape of catalyst
    • C01B2203/1011—Packed bed of catalytic structures, e.g. particles, packing elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1052—Nickel or cobalt catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235—Hydrocarbons
    • C01B2203/1241—Natural gas or methane
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235—Hydrocarbons
    • C01B2203/1247—Higher hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1258—Pre-treatment of the feed
    • C01B2203/1264—Catalytic pre-treatment of the feed
    • C01B2203/127—Catalytic desulfurisation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1288—Evaporation of one or more of the different feed components
    • C01B2203/1294—Evaporation by heat exchange with hot process stream
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/14—Details of the flowsheet
    • C01B2203/141—At least two reforming, decomposition or partial oxidation steps in parallel
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Catalysts (AREA)
IN908/DEL/80A 1980-01-23 1980-12-22 IN155024B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/114,566 US4337170A (en) 1980-01-23 1980-01-23 Catalytic steam reforming of hydrocarbons

Publications (1)

Publication Number Publication Date
IN155024B true IN155024B (pt) 1984-12-22

Family

ID=22356049

Family Applications (1)

Application Number Title Priority Date Filing Date
IN908/DEL/80A IN155024B (pt) 1980-01-23 1980-12-22

Country Status (9)

Country Link
US (1) US4337170A (pt)
EP (1) EP0033128B1 (pt)
JP (1) JPS56109286A (pt)
AT (1) ATE10182T1 (pt)
BR (1) BR8100327A (pt)
CA (1) CA1144099A (pt)
DE (1) DE3167004D1 (pt)
ES (1) ES8201200A1 (pt)
IN (1) IN155024B (pt)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442020A (en) * 1980-01-23 1984-04-10 Union Carbide Corporation Catalytic steam reforming of hydrocarbons
US4822521A (en) * 1983-06-09 1989-04-18 Uop Integrated process and apparatus for the primary and secondary catalytic steam reforming of hydrocarbons
US4650651A (en) * 1983-06-09 1987-03-17 Union Carbide Corporation Integrated process and apparatus for the primary and secondary catalytic steam reforming of hydrocarbons
US4545976A (en) * 1983-11-10 1985-10-08 Exxon Research & Engineering Co. Hydrocarbon steam reforming using series steam superheaters
US4578214A (en) * 1984-02-06 1986-03-25 C F Braun & Co. Process for ammonia syngas manufacture
US4755361A (en) * 1984-02-07 1988-07-05 Union Carbide Corporation Apparatus for ammonia synthesis gas production
US4553981A (en) * 1984-02-07 1985-11-19 Union Carbide Corporation Enhanced hydrogen recovery from effluent gas streams
US4592860A (en) * 1984-02-07 1986-06-03 Union Carbide Corporation Process and apparatus for ammonia synthesis gas production
US4572829A (en) * 1984-11-09 1986-02-25 Union Carbide Corporation Ammonia synthesis gas purification
GB8629497D0 (en) * 1986-12-10 1987-01-21 British Petroleum Co Plc Apparatus
US4792441A (en) * 1988-01-19 1988-12-20 Air Products And Chemicals, Inc. Ammonia synthesis
EP0334540B1 (en) * 1988-03-24 1993-10-20 Imperial Chemical Industries Plc Two-step steam-reforming process
US4988490A (en) * 1988-09-14 1991-01-29 Air Products And Chemicals, Inc. Adsorptive process for recovering nitrogen from flue gas
US5202057A (en) * 1988-09-14 1993-04-13 Air Products And Chemicals, Inc. Production of ammonia synthesis gas
US5122299A (en) * 1989-12-11 1992-06-16 The M. W. Kellogg Company Autothermal steam reforming process
US5011625A (en) * 1989-12-11 1991-04-30 The M. W. Kellogg Company Autothermal steam reforming process
US6096106A (en) * 1990-04-03 2000-08-01 The Standard Oil Company Endothermic reaction apparatus
US5567398A (en) * 1990-04-03 1996-10-22 The Standard Oil Company Endothermic reaction apparatus and method
AU661877B2 (en) * 1990-04-03 1995-08-10 Standard Oil Company, The Endothermic reaction apparatus
US6153152A (en) * 1990-04-03 2000-11-28 The Standard Oil Company Endothermic reaction apparatus and method
GB9516125D0 (en) * 1995-08-07 1995-10-04 Ici Plc Heat exchange apparatus and process
EP0834465B1 (en) * 1996-10-04 2000-07-19 Haldor Topsoe A/S Steam reforming process
EP0849245A1 (en) 1996-12-20 1998-06-24 Kvaerner Process Technology Limited Process and plant for the production of methanol
US6168765B1 (en) 1998-09-08 2001-01-02 Uop Llc Process and apparatus for interbed injection in plate reactor arrangement
US6641625B1 (en) 1999-05-03 2003-11-04 Nuvera Fuel Cells, Inc. Integrated hydrocarbon reforming system and controls
EP1136444B1 (en) * 2000-03-22 2012-05-09 Ammonia Casale S.A. Process for hydrocarbon reforming
US6397790B1 (en) 2000-04-03 2002-06-04 R. Kirk Collier, Jr. Octane enhanced natural gas for internal combustion engine
US6508209B1 (en) 2000-04-03 2003-01-21 R. Kirk Collier, Jr. Reformed natural gas for powering an internal combustion engine
US6405720B1 (en) 2000-04-03 2002-06-18 R. Kirk Collier, Jr. Natural gas powered engine
US20030162846A1 (en) * 2002-02-25 2003-08-28 Wang Shoou-L Process and apparatus for the production of synthesis gas
US6899861B2 (en) * 2002-07-25 2005-05-31 General Motors Corporation Heat exchanger mechanization to transfer reformate energy to steam and air
US6739125B1 (en) 2002-11-13 2004-05-25 Collier Technologies, Inc. Internal combustion engine with SCR and integrated ammonia production
JP4477432B2 (ja) * 2004-06-29 2010-06-09 東洋エンジニアリング株式会社 改質器
FR2890955B1 (fr) * 2005-09-21 2008-02-01 Inst Francais Du Petrole Procede de production de gaz de synthese par vaporeformage dans un reacteur-echangeur
FR2890956B1 (fr) * 2005-09-21 2008-04-18 Inst Francais Du Petrole Procede de production de gaz de synthese par vaporeformage et oxydation partielle
FR2897052A1 (fr) * 2006-02-03 2007-08-10 Air Liquide Procede de production d'un gaz de synthese
US20110073809A1 (en) * 2009-09-25 2011-03-31 Air Liquide Process And Construction Inc. Reduction Of CO2 Emissions From A Steam Methane Reformer And/Or Autothermal Reformer Using H2 As A Fuel
WO2011088982A1 (en) 2010-01-19 2011-07-28 Haldor Topsøe A/S Process and apparatus for reforming hydrocarbons
WO2011088981A1 (en) 2010-01-19 2011-07-28 Haldor Topsøe A/S Process for reforming hydrocarbons
EP2676924A1 (en) 2012-06-21 2013-12-25 Haldor Topsoe A/S Process for Reforming Hydrocarbons
US10316376B2 (en) * 2015-06-24 2019-06-11 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
UA126249C2 (uk) 2017-12-08 2022-09-07 Хальдор Топсьое А/С Система і спосіб виробництва синтез-газу
DE102019211133A1 (de) * 2019-07-26 2021-01-28 Thyssenkrupp Ag Reformeranordnung zur Herstellung von Synthesegas und/oder Wasserstoff
EP4105170A1 (en) * 2021-06-18 2022-12-21 Technip Energies France Process and plant for flexible production of syngas from hydrocarbons
US11819815B2 (en) 2021-11-19 2023-11-21 Infinium Technology, Llc Catalytic reactor for the conversion of carbon dioxide and hydrogen to syngas

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US2519696A (en) * 1949-07-29 1950-08-22 Jr John B Orr Tube cracking furnace
US3278452A (en) * 1959-12-24 1966-10-11 Pullman Inc Production of hydrogen-containing gases
US3094391A (en) * 1960-04-22 1963-06-18 Kellogg M W Co Hydrocarbon conversion
US3264066A (en) * 1962-05-01 1966-08-02 Pullman Inc Production of hydrogen
GB1059957A (en) * 1962-08-08 1967-02-22 Foster Wheeler Ltd Improvements in and relating to the steam reformation of light hydrocarbon feeds
US3262758A (en) * 1963-03-19 1966-07-26 Chemical Construction Corp Apparatus for reforming synthesis gas
USRE26990E (en) 1964-08-11 1970-11-24 Process and apparatus for reforming hydrocarbons
US3607125A (en) * 1968-12-30 1971-09-21 Gen Electric Reformer tube construction
GB1314984A (en) * 1969-08-21 1973-04-26 Chemical Construction Corp Process for recovering and using waste heat in the steam reforming
US3904744A (en) * 1973-10-01 1975-09-09 Exxon Research Engineering Co Process for the production of hydrogen-containing gases
US3910768A (en) * 1973-11-06 1975-10-07 Stone & Webster Eng Corp High pressure cracking furnace and system
US4079017A (en) * 1976-11-19 1978-03-14 Pullman Incorporated Parallel steam reformers to provide low energy process
US4162290A (en) * 1976-11-19 1979-07-24 Pullman Incorporated Parallel steam reformers to provide low energy process
JPS5382690A (en) * 1976-12-29 1978-07-21 Chiyoda Chem Eng & Constr Co Ltd Improved preparation of synthetic gas for ammonia

Also Published As

Publication number Publication date
CA1144099A (en) 1983-04-05
DE3167004D1 (en) 1984-12-13
EP0033128B1 (en) 1984-11-07
JPH0242761B2 (pt) 1990-09-26
ES498699A0 (es) 1981-12-01
BR8100327A (pt) 1981-08-11
US4337170A (en) 1982-06-29
ATE10182T1 (de) 1984-11-15
EP0033128A1 (en) 1981-08-05
JPS56109286A (en) 1981-08-29
ES8201200A1 (es) 1981-12-01

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