KR940010467A - 열집적 아르곤 컬럼에 의한 저온 정류 시스템 - Google Patents
열집적 아르곤 컬럼에 의한 저온 정류 시스템 Download PDFInfo
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- KR940010467A KR940010467A KR1019930021977A KR930021977A KR940010467A KR 940010467 A KR940010467 A KR 940010467A KR 1019930021977 A KR1019930021977 A KR 1019930021977A KR 930021977 A KR930021977 A KR 930021977A KR 940010467 A KR940010467 A KR 940010467A
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- argon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/04309—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen
- F25J3/04315—Lowest pressure or impure nitrogen, so-called waste nitrogen expansion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04684—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser and a bottom re-boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/58—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being argon or crude argon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/40—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Rectifiers (AREA)
Abstract
아르곤 컬럼의 압력이 시스템내의 다른 컬럼의 압력에서 감소되고, 작은 스트립핑 영역이 부가적인 응축기/재가열 보일러를 사용하고 컬럼의 중간지점에 아르곤 컬럼 공급원료를 도입함으로써 아르곤 컬럼내에서 만들어지는 아르곤 회수를 증가시키는 저온 정류 시스템.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 저온 정류 시스템의 바람직한 실시예의 개략적인 흐름도이다.
Claims (9)
- 주컬럼 시스템으로 아르곤을 포함하는 원료를 공급하고 주컬럼 시스템 내에서 저온 정류를 수행하는 단계와 주컬럼 시스템으로 부터 아르곤 함유 증기를 유출하고 상기 아르곤 함유 증기를 응축하는 단계와, 생성되는 아르곤 함유 액체의 압력을 감소시키는 단계와, 아르곤 컬럼의 중간지점에서 아르곤 컬럼으로 공급원료로서 감압 아르곤 함유 액체를 제공하고, 아르곤이 풍부한 액체 및 아르곤 경향유체로 저온 정류에 의해 공급원료를 분리하는 단계와, 아르곤 컬럼으로부터 아르곤 경향유체를 유출하고, 압력을 증가시키며, 가압 아르곤 경향 유체를 주컬럼 시스템으로 통과시키는 단계를 포함하는 아르곤 생성을 위한 저온 정류방법.
- 제1항에 있어서, 아르곤 함유 증기는 아르곤 경향 유체로 직접 열교환기에 의해 응측되는 저온 정류방법.
- 제1항에 있어서, 주컬럼 시스템이 저압칼럼 및 고압컬럼을 포함하는 이중컬럼 시스템이며, 아르곤 함유 중기가 저압컬럼으로 부터 유출되고 아르곤 경향 유체가 저압컬럼으로 통과되는 저온 정류방법.
- 제1항에 있어서, 아르곤 컬럼은 상압 미만의 압력으로 적어도 상부내에서 조작되는 저온 정류방법.
- 제3항에 있어서, 아르곤 컬럼의 조작압력이 저압컬럼 압력 이하의 적어도 3psi인 저온 정류방법.
- 제3항에 있어서, 저압컬럼으로 부터 아르곤 컬럼으로 통과하는 통과 아르곤 함유 증기를 포함하는 저온 정류방법.
- 주컬럼 시스템 및 주컬럼 시스템으로 원료를 공급하는 수단과, 아르곤 컬럼, 응축기 및 주컬럼 시스템에서 응축기로 유체를 통과시키는 수단과, 아르곤 컬럼의 중간지점에서 응축기로부터 아르곤 컬럼으로 유체를 통과시키는 수단과, 응축기로부터 아르곤 컬럼으로 통과되는 유체의 압력을 감소시키는 수단과, 아르곤 칼럼의 하부로 부터 유체를 유출하는 수단, 유출된 유체의 압력을 증가시키는 수단 및 주컬럼 시스템으로 가압 유출 유체를 통과시키는 수단과, 아르곤 컬럼 상부로 부터 취한 유체를 회수하는 수단을 포함하는 아르곤 생성을 위한 저온 정류장치.
- 제7항에 있어서, 응측기가 아르곤 컬럼의 하부내에 있는 저온 정류장치.
- 제7항에 있어서, 주컬럼 시스템이 저압컬럼 및 고압컬럼을 포함하는 이중컬럼 시스템이며, 주컬럼 시스템에서 응축기로 유체를 통과하는 수단 및 주컬럼 시스템으로 유출된 가압유체를 통과하는 수단이 모두 저압컬럼과 상호작용하는 저온 정류장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7/966,108 | 1992-10-23 | ||
US07/966,108 | 1992-10-23 | ||
US07/966,108 US5305611A (en) | 1992-10-23 | 1992-10-23 | Cryogenic rectification system with thermally integrated argon column |
Publications (2)
Publication Number | Publication Date |
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KR940010467A true KR940010467A (ko) | 1994-05-26 |
KR100190360B1 KR100190360B1 (ko) | 1999-06-01 |
Family
ID=25510927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930021977A KR100190360B1 (ko) | 1992-10-23 | 1993-10-22 | 열집적 아르곤 컬럼에 의한 저온 정류 시스템 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5305611A (ko) |
EP (1) | EP0594214B1 (ko) |
JP (1) | JP2762026B2 (ko) |
KR (1) | KR100190360B1 (ko) |
CN (1) | CN1057599C (ko) |
BR (1) | BR9304333A (ko) |
CA (1) | CA2109038C (ko) |
DE (1) | DE69308458T2 (ko) |
ES (1) | ES2098624T3 (ko) |
MX (1) | MX9306585A (ko) |
Families Citing this family (19)
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US5386691A (en) * | 1994-01-12 | 1995-02-07 | Praxair Technology, Inc. | Cryogenic air separation system with kettle vapor bypass |
CA2142318A1 (en) * | 1994-02-24 | 1995-08-25 | Horst Corduan | Process and apparatus for recovery of pure argon |
GB9410696D0 (en) * | 1994-05-27 | 1994-07-13 | Boc Group Plc | Air separation |
GB9412182D0 (en) | 1994-06-17 | 1994-08-10 | Boc Group Plc | Air separation |
GB9414939D0 (en) * | 1994-07-25 | 1994-09-14 | Boc Group Plc | Air separation |
US5469710A (en) * | 1994-10-26 | 1995-11-28 | Praxair Technology, Inc. | Cryogenic rectification system with enhanced argon recovery |
US5682765A (en) * | 1996-12-12 | 1997-11-04 | Praxair Technology, Inc. | Cryogenic rectification system for producing argon and lower purity oxygen |
DE10028867A1 (de) * | 2000-06-10 | 2001-12-20 | Messer Ags Gmbh | Verfahren und Vorrichtung zur Gewinnung von Argon |
DE10028871A1 (de) * | 2000-06-10 | 2001-12-20 | Messer Ags Gmbh | Verfahren und Vorrichtung zur Gewinnung von Argon |
US6318120B1 (en) * | 2000-08-11 | 2001-11-20 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic distillation system for air separation |
DE10055321A1 (de) * | 2000-11-08 | 2002-05-16 | Gea Happel Klimatechnik | Verfahren zum Verflüssigen eines Gases |
US6397632B1 (en) | 2001-07-11 | 2002-06-04 | Praxair Technology, Inc. | Gryogenic rectification method for increased argon production |
DE10217091A1 (de) * | 2002-04-17 | 2003-11-06 | Linde Ag | Drei-Säulen-System zur Tieftemperatur-Luftzerlegung mit Argongewinnung |
FR2874249A1 (fr) * | 2004-08-10 | 2006-02-17 | Air Liquide | Procede et installation de separation d'air par distillation cryogenique |
WO2021230912A1 (en) | 2020-05-11 | 2021-11-18 | Praxair Technology, Inc. | System and method for recovery of nitrogen, argon, and oxygen in moderate pressure cryogenic air separation unit |
EP4150276A1 (en) | 2020-05-15 | 2023-03-22 | Praxair Technology, Inc. | Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit |
KR20230008858A (ko) | 2020-05-15 | 2023-01-16 | 프랙스에어 테크놀로지, 인코포레이티드 | 중압 질소 및 아르곤 생성 극저온 공기 분리 유닛 향상 |
US11828532B2 (en) * | 2020-12-31 | 2023-11-28 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and apparatus for transfer of liquid |
US20240125550A1 (en) | 2022-10-18 | 2024-04-18 | Air Products And Chemicals, Inc. | Process and Apparatus for Improved Recovery of Argon |
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US4737177A (en) * | 1986-08-01 | 1988-04-12 | Erickson Donald C | Air distillation improvements for high purity oxygen |
US4784677A (en) * | 1987-07-16 | 1988-11-15 | The Boc Group, Inc. | Process and apparatus for controlling argon column feedstreams |
US4842625A (en) * | 1988-04-29 | 1989-06-27 | Air Products And Chemicals, Inc. | Control method to maximize argon recovery from cryogenic air separation units |
US4822395A (en) * | 1988-06-02 | 1989-04-18 | Union Carbide Corporation | Air separation process and apparatus for high argon recovery and moderate pressure nitrogen recovery |
DE3840506A1 (de) * | 1988-12-01 | 1990-06-07 | Linde Ag | Verfahren und vorrichtung zur luftzerlegung |
CN1025067C (zh) * | 1989-02-23 | 1994-06-15 | 琳德股份公司 | 精馏分离空气的方法及装置 |
US5077978A (en) * | 1990-06-12 | 1992-01-07 | Air Products And Chemicals, Inc. | Cryogenic process for the separation of air to produce moderate pressure nitrogen |
US5049174A (en) * | 1990-06-18 | 1991-09-17 | Air Products And Chemicals, Inc. | Hybrid membrane - cryogenic generation of argon concurrently with nitrogen |
US5114449A (en) * | 1990-08-28 | 1992-05-19 | Air Products And Chemicals, Inc. | Enhanced recovery of argon from cryogenic air separation cycles |
-
1992
- 1992-10-23 US US07/966,108 patent/US5305611A/en not_active Expired - Fee Related
-
1993
- 1993-10-22 JP JP5286207A patent/JP2762026B2/ja not_active Expired - Lifetime
- 1993-10-22 DE DE69308458T patent/DE69308458T2/de not_active Expired - Fee Related
- 1993-10-22 EP EP93117189A patent/EP0594214B1/en not_active Expired - Lifetime
- 1993-10-22 KR KR1019930021977A patent/KR100190360B1/ko not_active IP Right Cessation
- 1993-10-22 MX MX9306585A patent/MX9306585A/es unknown
- 1993-10-22 CA CA002109038A patent/CA2109038C/en not_active Expired - Fee Related
- 1993-10-22 BR BR9304333A patent/BR9304333A/pt not_active IP Right Cessation
- 1993-10-22 CN CN93119154A patent/CN1057599C/zh not_active Expired - Fee Related
- 1993-10-22 ES ES93117189T patent/ES2098624T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69308458T2 (de) | 1997-07-24 |
BR9304333A (pt) | 1994-06-28 |
EP0594214A1 (en) | 1994-04-27 |
KR100190360B1 (ko) | 1999-06-01 |
JP2762026B2 (ja) | 1998-06-04 |
CN1086010A (zh) | 1994-04-27 |
ES2098624T3 (es) | 1997-05-01 |
EP0594214B1 (en) | 1997-03-05 |
CA2109038C (en) | 1996-09-03 |
JPH06210162A (ja) | 1994-08-02 |
US5305611A (en) | 1994-04-26 |
MX9306585A (es) | 1994-05-31 |
CN1057599C (zh) | 2000-10-18 |
DE69308458D1 (de) | 1997-04-10 |
CA2109038A1 (en) | 1994-04-24 |
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