KR930016748A - 승압제품을 제조하기 위한 저온정류시스템 - Google Patents

승압제품을 제조하기 위한 저온정류시스템 Download PDF

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KR930016748A
KR930016748A KR1019930000647A KR930000647A KR930016748A KR 930016748 A KR930016748 A KR 930016748A KR 1019930000647 A KR1019930000647 A KR 1019930000647A KR 930000647 A KR930000647 A KR 930000647A KR 930016748 A KR930016748 A KR 930016748A
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column
fluid
nitrogen
argon
feed
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KR0144128B1 (ko
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마크 프로서 니일
쥴리안 로버츠 마크
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조운 이.페더리시
프랙스에어 테크놀로지, 인코포레이티드
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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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04163—Hot end purification of the feed air
    • F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
    • F25J3/04181—Regenerating the adsorbents
    • 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
    • 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
    • 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
    • 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896—Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04915—Combinations of different material exchange elements, e.g. within different columns
    • 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
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/10—Mathematical formulae, modeling, plot or curves; Design methods
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/923—Inert gas
    • Y10S62/924—Argon

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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)

Abstract

본 발명은 승압제품을 위한 저온정류시스템에 관한 것으로서, 2개의 컬럼 시스템중에서 압력이 보다 낮은 컬럼이 승압상태로 작동되고, 압력이 보다 낮은 컬럼의 상부로부터 취해진 질소-함유 유체를 이용하여 공장(plant)의 냉각을 발생시키고, 공급물질 정제용 흡착베드를 제생시켜서 공급물질을 팽창시킬 모든 필요성을 배제하게 된다.

Description

승압제품을 제조하기 위한 저온정류시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 바람직한 한가지 구체예에 대한 개략적 흐름도이고, 제2도는 터보팽창기-압축기의 결합장치를 이용하는 본 발명의 한가지 구체예에 대한 개략적 흐름도이고, 제3도는 터보팽창기-압축기의 결합장치를 이용하는 본 발명의 다른 구체예에 대한 개략적 흐름도이다.

Claims (14)

  1. (A) 산소와 질소로 이루어진 공급물을 정제용 흡착베드를 통해 통과시켜서 공급물로부터 베드로 흡착될 수 있는 오염물질을 제거함으로써 청정한 공급물질을 제조하는 단계; (B) 청정한 공급물을 냉각시키고, 냉각된 청정공급물을 고압컬럼에 통과시켜서, 공급물질을 질소-강화 유체와 산소-강화 유체로 저온정류시킴으로써 분리하는 단계; (C) 고압컬럼으로부터 질소-강하 유체와 산소-강화 유체를 고압컬럼 보다는 낮고 최소한 20psia 이상인 압력으로 작동되는 승압컬럼으로 이송시켜서 승압컬럼내에서 저온정류에 의해 질소-강화 유체와 산소-강화 유체를 제조하는 단계; (D) 승압컬럼의 상부로부터 질소-함유 유체를 제거하고, 질소-함유 유체를 터보팽창시켜서 정류작용을 발생시킨 다음, 생성된 질소함유 유체를 공급물질과 함께 간접 열교환기에 통과시켜서 공급물질을 냉각시키는 단계; (E) 질소-함유 유체를 승압컬럼으로부터 정제기의 흡착베드를 거쳐 통과시킴으로써 베드를 재생시키는 단계; 그리고 (F) 질소가 풍부한 유체와 산소가 풍부한 유체중의 최소한 한가지를 승압컬럼으로부터 승압제품으로서 회수하는 단계로 이루어지는, 승압제품의 제조를 위한 저온정류방법.
  2. 제1항에 있어서, 공급물질이 공기인 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 단계(E)의 정제용 흡착베드를 재생시키기 위해 사용된 질소-함유 유체가 단계(D)에서 터포뱅창된 유체인 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 단계 (E)의 정제용 흡착베드를 재생시키기 위해 사용된 질소-함유 유체가 재생이전에 터보팽창되지 않는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 질소-함유 유체가 터보팽창전에 압축되는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 질소-함유 유체가 터보팽창후에 압축되는 것을 특징으로 하는 방법.
  7. 제1항에 있어서, 공급물질에 추가로 아르곤이 포함되고, 승압 컬럼으로부터의 아르곤-함유 유체를 아르곤 컬럼에 이송하여 아르곤 컬럼내에서 저온 장류방법에 의해 아르곤이 풍부한 유체를 제조하는 것을 특징으로 하는 방법.
  8. 제7항에 있어서, 구조화 패킹으로 이루어진 증기-액체 접촉부재상에서 승압 컬럼내의 저온정류공정이 수행되고, 트레이로 이루어지는 증기-액체 접촉부재상에서 아르곤 컬럼내의 저온정류작용이 수행되는 것을 특징으로 하는 방법.
  9. (A) 정류기 흡착베드, 1차 열교환기, 그리고 공급물질을 정제기 흡착베드로부터 1차 열교환기로 이송시키는 수단; (B) 제1컬럼과 제2컬럼으로 이루어지는 컬럼 시스템, 공급물질을 1차 열교환기로부터 제1컬럼으로 이송시키는 수단, 그리고 유체를 제1컬럼으로부터 제2컬럼으로 이송시키는 수단; (C) 제2컬럼의 상부로부터 유체를 흡수하는 수단; (D) 터보팽창기, 제2컬럼의 상부로부터 흡수된 유체를 터보팽창기로 이송시키는 수단, 그리고 터보팽창기로부터의 팽창된 유체를 1차 열교환에 통과시키는 수단; (E) 제2컬럼의 상부로부터 흡수된 유체를 정제기의 흡착베드로 이송시키는 수단; (F) 유체제품을 제2컬럼으로부터 회수하는 수단으로 이루어지는 저온정류장치.
  10. 제9항에 있어서, 제2컬럼의 상부로부터 도출된 유체를 정제용 흡착베드로 이송시키는 수단에 터보팽창기가 포함되는 것을 특징으로 하는 장치.
  11. 제9항에 있어서, 제2컬럼의 상부로부터 도출된 유체를 정제용 흡착베드로 이송시키는 수단에 터보팽창기가 포함되지 않는 것을 특징으로 하는 장치.
  12. 제9항에 있어서, 터보팽창기가 압축기에 결합되어 있는 것을 특징으로 하는 장치.
  13. 제9항에 있어서, 아르곤 컬럼, 유체를 제2컬럼으로부터 아르곤 컬럼으로 이송시키는 수단, 그리고 아르곤 컬럼으로부터 유체를 회수하는 수단이 더 포함되는 것을 특징으로 하는 장치.
  14. 제13항에 있어서, 제2컬럼에는 구조화 패킹으로 이루어진 증기-액체-접촉부재가 구비되고, 아르곤 컬럼에는 트레이로 이루어진 증기-액체접촉부재가 구비된 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930000647A 1992-01-21 1993-01-20 승압제품을 제조하기 위한 저온정류시스템 KR0144128B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/823,6850 1992-01-21
US07/823,685 US5197296A (en) 1992-01-21 1992-01-21 Cryogenic rectification system for producing elevated pressure product
US7/823,685 1992-01-21

Publications (2)

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KR930016748A true KR930016748A (ko) 1993-08-26
KR0144128B1 KR0144128B1 (ko) 1998-07-15

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US (1) US5197296A (ko)
EP (1) EP0552747B2 (ko)
JP (1) JPH05256569A (ko)
KR (1) KR0144128B1 (ko)
CN (1) CN1074528C (ko)
BR (1) BR9300227A (ko)
CA (1) CA2083562C (ko)
DE (1) DE69301033T3 (ko)
ES (1) ES2081143T5 (ko)
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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311744A (en) * 1992-12-16 1994-05-17 The Boc Group, Inc. Cryogenic air separation process and apparatus
US5321953A (en) * 1993-05-10 1994-06-21 Praxair Technology, Inc. Cryogenic rectification system with prepurifier feed chiller
US5419137A (en) * 1993-08-16 1995-05-30 The Boc Group, Inc. Air separation process and apparatus for the production of high purity nitrogen
FR2709538B1 (fr) * 1993-09-01 1995-10-06 Air Liquide Procédé et installation de production d'au moins un gaz de l'air sous pression.
US5386691A (en) * 1994-01-12 1995-02-07 Praxair Technology, Inc. Cryogenic air separation system with kettle vapor bypass
US5396772A (en) * 1994-03-11 1995-03-14 The Boc Group, Inc. Atmospheric gas separation method
GB9405161D0 (en) * 1994-03-16 1994-04-27 Boc Group Plc Method and apparatus for reboiling a liquified gas mixture
GB9410686D0 (en) * 1994-05-27 1994-07-13 Boc Group Plc Air separation
US5557951A (en) * 1995-03-24 1996-09-24 Praxair Technology, Inc. Process and apparatus for recovery and purification of argon from a cryogenic air separation unit
FR2807150B1 (fr) * 2000-04-04 2002-10-18 Air Liquide Procede et appareil de production d'un fluide enrichi en oxygene par distillation cryogenique
US7114352B2 (en) * 2003-12-24 2006-10-03 Praxair Technology, Inc. Cryogenic air separation system for producing elevated pressure nitrogen
US9222725B2 (en) * 2007-06-15 2015-12-29 Praxair Technology, Inc. Air separation method and apparatus
JP6194280B2 (ja) * 2014-05-23 2017-09-06 株式会社神戸製鋼所 蒸留装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666303A (en) * 1950-06-08 1954-01-19 British Oxygen Co Ltd Apparatus for the separation of gas mixtures by liquefaction and rectification
DE1155458B (de) * 1961-02-23 1963-10-10 Linde Eismasch Ag Verfahren und Einrichtung zum Zerlegen von Gasgemischen durch Tieftemperaturrektifikation
DE1143526B (de) * 1962-01-12 1963-02-14 Linde Eismasch Ag Verfahren und Einrichtung zur Tieftemperatur-Gaszerlegung, insbesondere Luftzerlegung
US3327488A (en) * 1964-04-17 1967-06-27 Air Prod & Chem Refrigeration system for gas liquefaction
GB1180904A (en) * 1966-06-01 1970-02-11 British Oxygen Co Ltd Air Separation Process.
JPS576282A (en) * 1980-06-14 1982-01-13 Kobe Steel Ltd Air separator
US4557735A (en) * 1984-02-21 1985-12-10 Union Carbide Corporation Method for preparing air for separation by rectification
FR2578532B1 (fr) * 1985-03-11 1990-05-04 Air Liquide Procede et installation de production d'azote
JPS62102074A (ja) * 1985-10-30 1987-05-12 株式会社日立製作所 ガス分離方法及び装置
US4783209A (en) * 1986-07-02 1988-11-08 Erickson Donald C Cryogenic air distillation with companded nitrogen refrigeration
US4871382A (en) * 1987-12-14 1989-10-03 Air Products And Chemicals, Inc. Air separation process using packed columns for oxygen and argon recovery
US4838913A (en) * 1988-02-10 1989-06-13 Union Carbide Corporation Double column air separation process with hybrid upper column
DE3817244A1 (de) * 1988-05-20 1989-11-23 Linde Ag Verfahren zur tieftemperaturzerlegung von luft
EP0383994A3 (de) * 1989-02-23 1990-11-07 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Luftzerlegung durch Rektifikation
US4936099A (en) * 1989-05-19 1990-06-26 Air Products And Chemicals, Inc. Air separation process for the production of oxygen-rich and nitrogen-rich products
US4994098A (en) * 1990-02-02 1991-02-19 Air Products And Chemicals, Inc. Production of oxygen-lean argon from air
US5074898A (en) * 1990-04-03 1991-12-24 Union Carbide Industrial Gases Technology Corporation Cryogenic air separation method for the production of oxygen and medium pressure nitrogen
US5098457A (en) * 1991-01-22 1992-03-24 Union Carbide Industrial Gases Technology Corporation Method and apparatus for producing elevated pressure nitrogen

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KR0144128B1 (ko) 1998-07-15
CN1074748A (zh) 1993-07-28
MX9300286A (es) 1993-07-01
DE69301033D1 (de) 1996-02-01
CA2083562C (en) 1996-04-23
ES2081143T3 (es) 1996-02-16
EP0552747A1 (en) 1993-07-28
ES2081143T5 (es) 1999-04-01
CN1074528C (zh) 2001-11-07
JPH05256569A (ja) 1993-10-05
CA2083562A1 (en) 1993-07-22
US5197296A (en) 1993-03-30
DE69301033T3 (de) 1999-06-10
DE69301033T2 (de) 1996-09-05
EP0552747B1 (en) 1995-12-20
EP0552747B2 (en) 1999-01-20
BR9300227A (pt) 1993-07-27

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