NO931898L - Reformeringsroerenhet - Google Patents
ReformeringsroerenhetInfo
- Publication number
- NO931898L NO931898L NO931898A NO931898A NO931898L NO 931898 L NO931898 L NO 931898L NO 931898 A NO931898 A NO 931898A NO 931898 A NO931898 A NO 931898A NO 931898 L NO931898 L NO 931898L
- Authority
- NO
- Norway
- Prior art keywords
- open
- liner
- tube
- centrifuge
- roer
- Prior art date
Links
Classifications
-
- 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
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
-
- 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
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0218—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of ceramic
-
- 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
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0236—Metal based
-
- 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
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0833—Heating by indirect heat exchange with hot fluids, other than combustion gases, product gases or non-combustive exothermic reaction product gases
-
- 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
- C01B2203/10—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
- 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
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1082—Composition of support materials
-
- 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
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)
- Physical Or Chemical Processes And Apparatus (AREA)
- Industrial Gases (AREA)
Abstract
Reformerrørenhet (2) for anvendelse i reformerreaktorer (20) og omfattende et keramikkrør (4) med en åpen overende og en lukket underende, en korrosjonsbestandig foring (8) for keramikkrøret og likeledes med en åpen overende og en lukket underende, og et midtre metallrør (12) med en åpen overende og en åpen underende og med en diameter som er betydelig mindre enn f6ringens, hvorved det avgrenses et ringrom (34) mellom f6ringens innervegg og midtrørets yttervegg, for opptaking av katalyt, og hvor midtrørets åpne underende befinner seg i avstand fra foringens lukkede underende, slik at prosessgass som utstrømmer fra det katalytfylte ringrom, passerer langs foringens lukkede underende og oppad gjennom det indre av det midtre metallrør.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/916,366 US5254318A (en) | 1992-07-20 | 1992-07-20 | Lined reformer tubes for high pressure reformer reactors |
Publications (2)
Publication Number | Publication Date |
---|---|
NO931898D0 NO931898D0 (no) | 1993-05-25 |
NO931898L true NO931898L (no) | 1994-01-21 |
Family
ID=25437152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO931898A NO931898L (no) | 1992-07-20 | 1993-05-25 | Reformeringsroerenhet |
Country Status (11)
Country | Link |
---|---|
US (1) | US5254318A (no) |
EP (1) | EP0579942A1 (no) |
JP (1) | JPH06238156A (no) |
KR (1) | KR940001935A (no) |
CN (1) | CN1085652A (no) |
AU (1) | AU655395B2 (no) |
BR (1) | BR9302663A (no) |
CA (1) | CA2097377A1 (no) |
FI (1) | FI932725A (no) |
NO (1) | NO931898L (no) |
TW (1) | TW240179B (no) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5779989A (en) * | 1995-11-02 | 1998-07-14 | Dorr-Oliver Incorporated | Fluidized bed reactor with gas distributor and baffle |
JPH1160201A (ja) * | 1997-08-04 | 1999-03-02 | Sanritsuku:Kk | 水素吸蔵合金の貯蔵容器 |
US6312652B1 (en) * | 1997-09-19 | 2001-11-06 | Stone & Webster Engineering Corp. | Ceramic dip pipe and tube reactor for ethylene production |
US6258330B1 (en) * | 1998-11-10 | 2001-07-10 | International Fuel Cells, Llc | Inhibition of carbon deposition on fuel gas steam reformer walls |
AU2001279807A1 (en) * | 2000-08-08 | 2002-02-18 | Shell Internationale Research Maatschappij B.V. | Flow distributor |
US7048897B1 (en) | 2000-08-28 | 2006-05-23 | Motorola, Inc. | Hydrogen generator utilizing ceramic technology |
GB2372462A (en) * | 2001-02-21 | 2002-08-28 | Univ Newcastle | Reactor for conducting endothermic reactions |
GB0117090D0 (en) | 2001-07-12 | 2001-09-05 | Kvaerner Process Tech Ltd | Process |
US7482502B2 (en) * | 2003-01-24 | 2009-01-27 | Stone & Webster Process Technology, Inc. | Process for cracking hydrocarbons using improved furnace reactor tubes |
US20040173597A1 (en) * | 2003-03-03 | 2004-09-09 | Manoj Agrawal | Apparatus for contacting gases at high temperature |
US7125913B2 (en) * | 2003-03-14 | 2006-10-24 | Conocophillips Company | Partial oxidation reactors and syngas coolers using nickel-containing components |
WO2004092063A1 (en) * | 2003-04-15 | 2004-10-28 | Shell Internationale Research Maatschappij B.V. | Process to prepare synthesis gas |
JP4316307B2 (ja) * | 2003-06-17 | 2009-08-19 | 日揮株式会社 | 高温反応用反応容器 |
JP4007610B2 (ja) * | 2004-09-02 | 2007-11-14 | 財団法人電力中央研究所 | 腐食減肉試験装置及び腐食減肉試験方法 |
EP1816101B1 (en) * | 2004-10-26 | 2012-08-22 | NGK Insulators, Ltd. | Industrial furnace with steam reforming apparatus and method for steam reforming using the same |
US7556675B2 (en) * | 2005-10-11 | 2009-07-07 | Air Products And Chemicals, Inc. | Feed gas contaminant control in ion transport membrane systems |
EP1806176A1 (en) * | 2006-01-10 | 2007-07-11 | Casale Chemicals S.A. | Apparatus for the production of synthesis gas |
WO2007103131A2 (en) * | 2006-03-02 | 2007-09-13 | Shaw Waste Solutions, Llc | Improved induction heater |
US20080286159A1 (en) * | 2006-09-15 | 2008-11-20 | Grover Bhadra S | Variable Tube Diameter For SMR |
US9011620B2 (en) * | 2009-09-11 | 2015-04-21 | Technip Process Technology, Inc. | Double transition joint for the joining of ceramics to metals |
WO2015061760A1 (en) * | 2013-10-24 | 2015-04-30 | Clearsign Combustion Corporation | System and combustion reaction holder configured to transfer heat from a combustion reaction to a fluid |
CN107683384B (zh) * | 2015-05-19 | 2021-03-30 | 巴斯夫欧洲公司 | 气密、导热的多层陶瓷复合管 |
US10384183B2 (en) | 2017-02-15 | 2019-08-20 | Praxair Technology, Inc. | Steam methane reformer tube outlet assembly |
FR3098216B1 (fr) * | 2020-07-03 | 2023-01-13 | Arkema France | Procédé de production de 2,3,3,3-tétrafluoropropène et installation pour la mise en œuvre de celui-ci |
CN117529363A (zh) * | 2021-06-30 | 2024-02-06 | 陶氏环球技术有限责任公司 | 板栅分配器及其使用方法 |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL107607C (no) * | 1954-09-18 | 1900-01-01 | ||
GB1159823A (en) * | 1965-08-06 | 1969-07-30 | Montedison Spa | Protective Coatings |
DE2153437B2 (de) * | 1971-10-27 | 1974-11-21 | Metallgesellschaft Ag, 6000 Frankfurt | Reaktor zur Herstellung von Methanol |
US3958951A (en) * | 1974-04-09 | 1976-05-25 | Stone & Webster Engineering Corporation | Convective power reformer equipment and system |
US4325926A (en) * | 1977-12-16 | 1982-04-20 | Chevron Research Company | Process for removing sulfur dioxide from a gas |
US4221763A (en) * | 1978-08-29 | 1980-09-09 | Cities Service Company | Multi tube high pressure, high temperature reactor |
FR2484055B1 (fr) * | 1980-06-10 | 1985-09-06 | Inst Francais Du Petrole | Methode d'application d'un revetement d'isolation thermique a la surface d'un corps susceptible d'etre porte a une temperature elevee |
JPS57140643A (en) * | 1981-02-25 | 1982-08-31 | Kubota Ltd | Coated pipe for reactor subjected to pyrolysis and reforming of hydrocarbon |
US4820472A (en) * | 1981-07-14 | 1989-04-11 | Westinghouse Electric Corp. | Nuclear reactor spent fuel storage rack |
DE3134851C2 (de) * | 1981-09-03 | 1983-10-13 | Degussa Ag, 6000 Frankfurt | Rohrofen zur Durchführung von Gasreaktionen |
US4692313A (en) * | 1981-12-17 | 1987-09-08 | Showa Denko Kabushiki Kaisha | Apparatus for thermal cracking of or heating of hydrocarbons |
JPS6056696B2 (ja) * | 1982-01-18 | 1985-12-11 | 三菱瓦斯化学株式会社 | 芳香族ポリカルボン酸を製造する方法 |
US4554135A (en) * | 1982-11-26 | 1985-11-19 | C F Braun & Co. | Ammonia converter |
DE3663652D1 (en) * | 1985-03-05 | 1989-07-06 | Ici Plc | Steam reforming hydrocarbons |
US4661323A (en) * | 1985-04-08 | 1987-04-28 | Olesen Ole L | Radiating sleeve for catalytic reaction apparatus |
WO1987000081A1 (en) * | 1985-06-27 | 1987-01-15 | Stone & Webster Engineering Corporation | Production of synthesis gas using convective reforming |
FR2584733B1 (fr) * | 1985-07-12 | 1987-11-13 | Inst Francais Du Petrole | Procede ameliore de vapocraquage d'hydrocarbures |
DK167426B1 (da) * | 1985-10-17 | 1993-11-01 | Inst Francais Du Petrole | Fremgangsmaade til oxydation af en oxiderbar charge i gasfase med en gasblanding og reaktor til udoevelse af fremgangsmaaden |
US4973777A (en) * | 1985-11-08 | 1990-11-27 | Institut Francais Du Petrole | Process for thermally converting methane into hydrocarbons with higher molecular weights, reactor for implementing the process and process for realizing the reactor |
FR2589859B1 (fr) * | 1985-11-08 | 1988-02-05 | Inst Francais Du Petrole | Procede de conversion thermique du methane en hydrocarbures de poids moleculaires plus eleves |
EP0226487B1 (fr) * | 1985-11-08 | 1990-01-10 | Institut Français du Pétrole | Procédé de conversion thermique du méthane en hydrocarbures de poids moléculaires plus élevés |
US4642864A (en) * | 1985-12-20 | 1987-02-17 | Solar Turbines Incorporated | Recuperator tube assembly |
FR2592320B1 (fr) * | 1985-12-30 | 1988-04-08 | Inst Francais Du Petrole | Nouveau procede d'oxydation d'une charge oxydable en phase gazeuse et reacteur pour la mise en oeuvre de ce procede. |
FR2609649B1 (fr) * | 1987-01-21 | 1989-04-28 | Inst Francais Du Petrole | Procede et appareil pour effectuer sous pression des reactions chimiques dans une zone reactionnelle multi-etagee avec conditionnements thermiques intermediaires exterieurs |
GB2222533A (en) * | 1988-04-20 | 1990-03-14 | Humphreys & Glasgow Ltd | Combined tubular primary and secondary reformer |
US5032365A (en) * | 1988-06-14 | 1991-07-16 | Mitsubishi Denki Kabushiki Kaisha | Reaction apparatus |
FR2637060B1 (fr) * | 1988-09-27 | 1991-10-04 | Inst Francais Du Petrole | Elements de garnissage en couches comportant sur deux de leurs faces des canaux croises et leurs caracteristiques |
FR2637059B1 (fr) * | 1988-09-27 | 1991-10-31 | Inst Francais Du Petrole | Elements de garnissage, massifs et geometriquement reguliers, d'echange de matiere et/ou de chaleur ou de melange |
FR2640620B1 (fr) * | 1988-12-20 | 1993-02-05 | Inst Francais Du Petrole | Procede de fabrication de pieces en materiau ceramique comportant des canaux calibres |
FR2648471B1 (fr) * | 1989-06-19 | 1991-10-04 | Inst Francais Du Petrole | Reacteur multicanaux en matiere ceramique comportant des moyens de turbulence du fluide en contact avec ceux-ci |
DZ1444A1 (fr) * | 1989-09-12 | 2004-09-13 | Inst Francais Du Petrole | Procédé et réacteur d'oxydation à differentiel de perte de charge et son utilisation. |
US5073236A (en) * | 1989-11-13 | 1991-12-17 | Gelbein Abraham P | Process and structure for effecting catalytic reactions in distillation structure |
GB9000528D0 (en) * | 1990-01-10 | 1990-03-14 | Shell Int Research | Fixed bed reactor |
-
1992
- 1992-07-20 US US07/916,366 patent/US5254318A/en not_active Expired - Lifetime
-
1993
- 1993-05-24 AU AU38772/93A patent/AU655395B2/en not_active Ceased
- 1993-05-25 NO NO931898A patent/NO931898L/no unknown
- 1993-05-31 CA CA002097377A patent/CA2097377A1/en not_active Abandoned
- 1993-06-07 EP EP93109101A patent/EP0579942A1/en not_active Withdrawn
- 1993-06-14 FI FI932725A patent/FI932725A/fi not_active Application Discontinuation
- 1993-06-21 KR KR1019930011350A patent/KR940001935A/ko not_active Application Discontinuation
- 1993-06-25 BR BR9302663A patent/BR9302663A/pt active Search and Examination
- 1993-07-09 TW TW082105492A patent/TW240179B/zh active
- 1993-07-16 JP JP5198975A patent/JPH06238156A/ja active Pending
- 1993-07-20 CN CN93108957A patent/CN1085652A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH06238156A (ja) | 1994-08-30 |
BR9302663A (pt) | 1994-02-01 |
NO931898D0 (no) | 1993-05-25 |
FI932725A0 (fi) | 1993-06-14 |
EP0579942A1 (en) | 1994-01-26 |
KR940001935A (ko) | 1994-02-16 |
CA2097377A1 (en) | 1994-01-21 |
AU655395B2 (en) | 1994-12-15 |
US5254318A (en) | 1993-10-19 |
CN1085652A (zh) | 1994-04-20 |
FI932725A (fi) | 1994-01-21 |
TW240179B (no) | 1995-02-11 |
AU3877293A (en) | 1994-01-27 |
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