KR970011765A - 저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법 - Google Patents

저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법 Download PDF

Info

Publication number
KR970011765A
KR970011765A KR1019960036264A KR19960036264A KR970011765A KR 970011765 A KR970011765 A KR 970011765A KR 1019960036264 A KR1019960036264 A KR 1019960036264A KR 19960036264 A KR19960036264 A KR 19960036264A KR 970011765 A KR970011765 A KR 970011765A
Authority
KR
South Korea
Prior art keywords
oxygen
distillation column
stream
containing side
stripped
Prior art date
Application number
KR1019960036264A
Other languages
English (en)
Other versions
KR100191950B1 (ko
Inventor
아그라왈 라케쉬
마이클 헤론 돈
로버트 화이트 토마스
Original Assignee
윌리엄 에프. 마쉬
에어 프로덕츠 앤드 케미칼스, 인코오포레이티드
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24072648&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR970011765(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 윌리엄 에프. 마쉬, 에어 프로덕츠 앤드 케미칼스, 인코오포레이티드 filed Critical 윌리엄 에프. 마쉬
Publication of KR970011765A publication Critical patent/KR970011765A/ko
Application granted granted Critical
Publication of KR100191950B1 publication Critical patent/KR100191950B1/ko

Links

Classifications

    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • 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
    • 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
    • F25J3/0429—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 feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low 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
    • F25J3/044—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 single pressure main column system only
    • 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
    • F25J3/04406—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
    • F25J3/0443—A main column system not otherwise provided, e.g. a modified double column flowsheet
    • 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
    • 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
    • F25J2200/30—Processes or apparatus using separation by rectification using a side column in a single pressure column system
    • 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
    • F25J2200/34—Processes or apparatus using separation by rectification using a side column fed by a stream from the low 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
    • F25J2215/56—Ultra high purity oxygen, i.e. generally more than 99,9% O2
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • 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
    • Y10S62/902—Apparatus
    • Y10S62/905—Column

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

본 발명은 초고순도 산소 생성물 및 질소 및/또는 시판용 순도의 산소 생성물을 생성물을 생성하는 저온 공기 분리 방법에 관한 것이다. 특히, 본 발명은 산소-함유 사이드-드로우 스트림을 배출하기 위한 위치에 인접한 증류구간으로부터 증류 컬럼 시스템을 하강하는 액체의 일부를 제거하는 것을 특징으로 한다.

Description

저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명의 특징부분을 상술하는 개략도이다.

Claims (15)

  1. 공급 공기 스트림을 압착시키고, 그것의 이슬점 근처까지 냉각시키고, 정류(整流)용 증류컬럼 시스템으로 주입시키므로써-함유 상부물 및 미정제 액체 산소 하부물을 제조하고; 탄화수소, 이산화 탄소, 크세논 및 크립톤을 포함하는 중 오염물이 거의 없는 산소-함유 사이드-드로우 스트림을 상기 증류 컬럼으로부터 제거하고 보조 스트리핑 컬럼에서 스트리핑하여 보조 스트리핑 컬럼의 하부에서 초고순도 산소 생성물을 생성 시키고; 산소와 질소를 일차적으로 분리하는 증류 컬럼 시스템의 한 위치로부터 상기 산소-함유 사이드-드로우 스트림을 제거하여 1% 내지 35%의 산소 농도를 갖게 하는, 하나 이상의 증류 컬럼을 포함하는 저온 증류컬럼시스템 사용하여 저온 증루에 의해 공기를 분별하는 방법에 있어서, 증류 컬럼 시스템을 하강하는 액체의 일부를 보조 스트리핑 컬럼용 산소-함유 사이드-드로우 스트림을 배출하기 위한 위치에 근접한 증류 컬럼 시스템의 증류 구간으로부터 제거하므로써, 산소-함유 사이드-드로우 스트림을 배출하는 구간과 상부의 가장 무거운 오염물을 함유하는 공급물을 도입시키는 구간 사이의 증류 구간에서의 상기 액체 대증기 비를 감소시키는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 상기 제거된 액체 일부를, 상부의 가장 무거운 오염물을 함유하는 공급물을 도입하는 곳에 근접한 한 위치에서 상기 증류 컬럼 시스템에 도입하는 방법.
  3. 제1항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 액체 스트림으로서 제거하는 방법.
  4. 제1항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 증기 스트림으로서 제거하는 방법.
  5. 제1항에 있어서, 보조 스트리핑 컬럼을 재가열하는 열량은 저온 증류컬럼 시스템의 증류 컬럼으로부터 나온 미정제 액체 산소 하부물의 일부 이상을 차냉각시키므로써 제공되는 방법.
  6. 제1항에 있어서, 보조 스트리핑 컬럼을 재가열하는 열량은 저온 증류컬럼 시스템의 증류 컬럼으로부터 나온 질소 상부물의 일부를 적어도 부분적으로 응축시키므로써 제공되는 방법.
  7. 제1항에 있어서, 상기 저온 증류 컬럼 시스템은 고압 증류 컬럼 및 저압 증류 컬럼을 포함하며, 여기서 공급 공기 스트림을 압착시키고, 그것의 이슬점 근처까지 냉각시키고, 정류용 고 증류컬럼 시스템으로 주입시키므로써 질소-함유 상부물 및 미정제 액체 산소 하부물을 생성시키고, 상기 미정제 액체 산소를 감압시키고 저압 증류 컬럼으로 공급하고 추가로 저압 증류 컬럼에서 분별시키므로써 저압 질소 오버헤드를 생성시키는 방법.
  8. 제7항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 액체 스트림으로서 제거하는 방법.
  9. 제7항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 증기 스트림으로서 제거하는 방법.
  10. 제7항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 저압컬럼으로부터 제거하는 방법.
  11. 제7항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 고압컬럼으로부터 제거하는 방법.
  12. 제1항에 있어서, 상기 저온 증류컬럼 시스템은 단일(질소 발생기)증류 컬럼으로 구성되며 여기서 상기 보조 스트리핑 컬럼은 탄화수소, 이산화 탄소, 크세논 및 크립톤을 포함하는 무거운 성분이 거의 없는 증류 컬럼으로부터 나온 액체 스트림과 환류시키는 방법.
  13. 제12항에 있어서, 스트리핑시키고자 하는 상기 제조된 산소-함유 사이드-드로우 스트림을 액체 스트림으로서 제거하는 방법.
  14. 제12항에 있어서, 스트리핑시키고자 하는 상기 제거된 산소-함유 사이드-드로우 스트림을 증기 스트림으로서 제거하는 방법.
  15. 제12항에 있어서, 보조 스트리핑 컬럼을 재가열하는 열량은 정류전, 산소-함유 사이드-드로우 스트림의 일부 이상을 응출시키므로써 제공되는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960036264A 1995-08-29 1996-08-29 저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법 KR100191950B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/520,451 1995-08-29
US8/520,451 1995-08-29
US08/520,451 US5590543A (en) 1995-08-29 1995-08-29 Production of ultra-high purity oxygen from cryogenic air separation plants

Publications (2)

Publication Number Publication Date
KR970011765A true KR970011765A (ko) 1997-03-27
KR100191950B1 KR100191950B1 (ko) 1999-06-15

Family

ID=24072648

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960036264A KR100191950B1 (ko) 1995-08-29 1996-08-29 저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법

Country Status (9)

Country Link
US (1) US5590543A (ko)
EP (1) EP0762066B1 (ko)
JP (1) JP2776461B2 (ko)
KR (1) KR100191950B1 (ko)
CN (1) CN1076818C (ko)
CA (1) CA2183931C (ko)
DE (1) DE69613066T2 (ko)
SG (1) SG44971A1 (ko)
TW (1) TW293873B (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9607200D0 (en) * 1996-04-04 1996-06-12 Boc Group Plc Air separation
US5918482A (en) * 1998-02-17 1999-07-06 Praxair Technology, Inc. Cryogenic rectification system for producing ultra-high purity nitrogen and ultra-high purity oxygen
US5934104A (en) * 1998-06-02 1999-08-10 Air Products And Chemicals, Inc. Multiple column nitrogen generators with oxygen coproduction
US6173586B1 (en) 1999-08-31 2001-01-16 Praxair Technology, Inc. Cryogenic rectification system for producing very high purity oxygen
FR2807150B1 (fr) * 2000-04-04 2002-10-18 Air Liquide Procede et appareil de production d'un fluide enrichi en oxygene par distillation cryogenique
US6279345B1 (en) 2000-05-18 2001-08-28 Praxair Technology, Inc. Cryogenic air separation system with split kettle recycle
JP4520667B2 (ja) * 2001-07-17 2010-08-11 大陽日酸株式会社 空気分離方法および装置
US6460373B1 (en) 2001-12-04 2002-10-08 Praxair Technology, Inc. Cryogenic rectification system for producing high purity oxygen
US7210312B2 (en) * 2004-08-03 2007-05-01 Sunpower, Inc. Energy efficient, inexpensive extraction of oxygen from ambient air for portable and home use
JP5417054B2 (ja) * 2009-06-15 2014-02-12 大陽日酸株式会社 空気分離方法及び装置
MX363766B (es) * 2013-12-06 2019-04-02 Exxonmobil Upstream Res Co Metodo y dispositivo para separar hidrocarburos y contaminantes con un mecanismo de calentamiento para desestabilizar y/o prevenir la adhesion de solidos.
US10359231B2 (en) 2017-04-12 2019-07-23 Praxair Technology, Inc. Method for controlling production of high pressure gaseous oxygen in an air separation unit
CN111520974A (zh) * 2020-05-25 2020-08-11 开封黄河空分集团有限公司 一种全低压空分设备用膨胀空气液化器
IT202000016126A1 (it) 2020-07-03 2022-01-03 Itelyum Regeneration S P A Colonna di distillazione ausiliaria e suo uso

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363427A (en) * 1964-06-02 1968-01-16 Air Reduction Production of ultrahigh purity oxygen with removal of hydrocarbon impurities
US4560397A (en) * 1984-08-16 1985-12-24 Union Carbide Corporation Process to produce ultrahigh purity oxygen
US4615716A (en) * 1985-08-27 1986-10-07 Air Products And Chemicals, Inc. Process for producing ultra high purity oxygen
US4755202A (en) * 1987-07-28 1988-07-05 Union Carbide Corporation Process and apparatus to produce ultra high purity oxygen from a gaseous feed
US4869741A (en) * 1988-05-13 1989-09-26 Air Products And Chemicals, Inc. Ultra pure liquid oxygen cycle
US5049173A (en) * 1990-03-06 1991-09-17 Air Products And Chemicals, Inc. Production of ultra-high purity oxygen from cryogenic air separation plants
US5231837A (en) * 1991-10-15 1993-08-03 Liquid Air Engineering Corporation Cryogenic distillation process for the production of oxygen and nitrogen
US5218825A (en) * 1991-11-15 1993-06-15 Air Products And Chemicals, Inc. Coproduction of a normal purity and ultra high purity volatile component from a multi-component stream
US5282365A (en) * 1992-11-17 1994-02-01 Praxair Technology, Inc. Packed column distillation system
US5425241A (en) * 1994-05-10 1995-06-20 Air Products And Chemicals, Inc. Process for the cryogenic distillation of an air feed to produce an ultra-high purity oxygen product

Also Published As

Publication number Publication date
EP0762066A2 (en) 1997-03-12
EP0762066A3 (en) 1998-01-28
EP0762066B1 (en) 2001-05-30
DE69613066T2 (de) 2001-11-08
CA2183931A1 (en) 1997-03-01
SG44971A1 (en) 1997-12-19
CN1076818C (zh) 2001-12-26
KR100191950B1 (ko) 1999-06-15
JP2776461B2 (ja) 1998-07-16
CN1151011A (zh) 1997-06-04
JPH09113130A (ja) 1997-05-02
TW293873B (en) 1996-12-21
DE69613066D1 (de) 2001-07-05
CA2183931C (en) 1999-03-23
US5590543A (en) 1997-01-07

Similar Documents

Publication Publication Date Title
CA2049236A1 (en) Method and apparatus to start-up a controlled freezing zone process and purify the product stream
KR970011765A (ko) 저온 공기분리 플랜트로부터 초고순도 산소를 분리하는 방법
KR950009204A (ko) 기체 및/또는 액체 생성물로서 산소 및 질소를 공동 생성하는 공기 분리 방법
CA2351423A1 (en) Hydrocarbon gas processing
CA2021444A1 (en) Process and apparatus for producing nitrogen from air
CA1166145A (en) Process to remove nitrogen from natural gas
MXPA02001996A (es) Sistema de tres columnas para la descomposicion del aire.
CA2082674A1 (en) Efficient Single Column Air Separation Cycle and Its Integration with Gas Turbines
EP0811816A3 (en) Method and apparatus for producing liquid products from air in various proportions
CA2096064A1 (en) Inter-column heat integration for multi-column distillation system
TW264399B (en) Cryogenic rectification method and apparatus
CA2075230C (en) Coproduction of a normal purity and ultra high purity volatile component from a multi-component stream
TW255006B (en) Process for the cryogenic distillation of an air feed to produce an ultra-high purity oxygen product
CA2070498A1 (en) Cryogenic process for producing ultra high purity nitrogen
JPH08178521A (ja) 高純度窒素の製造方法及び製造装置
CA2108847A1 (en) Cryogenic Air Separation Process and Apparatus
CA2058490A1 (en) Cryogenic process for the separation of air to produce ultra high purity nitrogen
ID19527A (id) Metode pemisahan udara dan alatnya
EP0539268B1 (en) Process for removing hydrogen by cryogenic distillation in the production of high purity nitrogen
US6327873B1 (en) Cryogenic rectification system for producing ultra high purity oxygen
US4713940A (en) Process for obtaining C2+ or C3+ hydrocarbons from gaseous mixtures
US5309719A (en) Process to produce a krypton/xenon enriched stream from a cryogenic nitrogen generator
CA2068065A1 (en) Process to produce oxygen and nitrogen at medium pressure
KR19990082822A (ko) 열적으로일체화된스트리핑칼럼을갖는극저온아르곤제조시스템

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20111228

Year of fee payment: 14

LAPS Lapse due to unpaid annual fee