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KR920000365A - 이중온도 공급된 터빈팽창을 사용한 저온 기 분리장치 - Google Patents

이중온도 공급된 터빈팽창을 사용한 저온 기 분리장치 Download PDF

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KR920000365A
KR920000365A KR1019910010628A KR910010628A KR920000365A KR 920000365 A KR920000365 A KR 920000365A KR 1019910010628 A KR1019910010628 A KR 1019910010628A KR 910010628 A KR910010628 A KR 910010628A KR 920000365 A KR920000365 A KR 920000365A
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tower
liquid
rich
argon
column
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KR960003273B1 (ko
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로버트 드레이 제임스
로스 파스닉 데이비드
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티모티 엔. 비숍
유니온 카바이드 인더스트리얼 개시즈 테크놀로지 코포레이션
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    • 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
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    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
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    • 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
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    • 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
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    • 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
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    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
    • F25J3/04206—Division of the main heat exchange line in consecutive sections having different functions including a so-called "auxiliary vaporiser" for vaporising and producing a gaseous product
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    • 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
    • F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
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    • 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
    • F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
    • F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
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    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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    • 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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    • 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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    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
    • F25J2250/40—One fluid being air
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    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
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    • F25J2250/58—One fluid being argon or crude argon
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    • Y10S62/923—Inert gas
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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
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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

내용 없음

Description

이중온도 공급된 터빈팽창을 사용한 저온공기 분리장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 저온공기 분리 장치중 바람직한 한 구현예의 개략적 흐름도,
제2도는 산소 비동압력에 대한 공기 용축 압력의 그래프도.

Claims (22)

  1. (A) 압축된 공급 공기중 제1부분을 터빈팽창하고, 터빈팽창된 제1부분을 냉각하고, 그리고 얻어진 터빈팽창되었으며, 냉각된 제1부분을 공기 분리 설비중 통상적으로 60 내지 100psia 내의 압력에서 작동하는 제1탑속으로 주입하는 단계; (B)압축된 공급 공기중 제2부분을 냉각하고, 냉각된 제2부분을 (A)단계에서 터빈팽창이 수행된 온도보다 좀더 낮은 온도에서 터빈팽창하고, 그리고 얻어진 터빈팽창된 제2부분을 상기 제1탑속으로 주입하는 단계; (C)공급공기의 제3부분중 최소한 일부분을 응축하고 얻어진 액체를 상기 제1탑속으로 주입하는 단계, (D) 상기 제1탑속으로 주입된 유체를 질소-농후 및 산소-농후 유체로 분리하고, 상기 유체를 상기 유체를 상기 공기 분리 설비중 상기 제1탑에서의 압력보다 좀더 낮은 압력에서 작동하는 제2탑속으로 공급하는 단계; (E)제2탑속으로 주입된 유체를 질소-농후 및 산소-농후 액체로 분리하는 단계; (F) (C)의 단계의 응축을 수행하기 위해 공급 공기중 제3부분과 더불어 간접 열교환에 의해 산소-농후 액체를 증기화하는 단계; 및 (G) (F)단계의 열교환으로 부터 얻어진 증기를 산소 기체 생성물로서 회수하는 단계들로 이루어진, 공기를 자온 중류에 의해 분리하여 기체 생성물을 생성하는 방법.
  2. 제1항에 있어서, (C)단계의 응축으로부터 얻어진 액체가 제1탑속으로 주입되기에, 앞서 더욱더 냉각됨을 특징으로 하는 방법.
  3. 제1항에 있어서, 산소-농후 액체가 (F)단계의 증기화에서 앞서 데워짐을 특징으로 하는 방법.
  4. 제1항에 있어서, 산소-농후 액체가 (F)단계의 증기화에서 앞서 가압됨을 특징으로 하는 방법.
  5. 제1항에 있어서, 공기 분리 설비가 아르곤 탑으로 더욱더 구성되고, 흐름이 제2탑에서 아르곤 탑으로 공급되어 아르곤-농후 증기 및 산소-농후 액체로 분리되고, 아르곤-농후 증기가 응축되며, 최소한 일부는 회수됨을 특징으로 하는 방법.
  6. 제5항에 있어서, 아르곤-농후증기가 산소-농후 유체와 더불어 간접열 교환에 의해 응축되어 아르곤-농후 액체를 생성함을 특징으로 하는 방법.
  7. 제6항에 있어서, 아르곤-농후 액체가 냉각되었으며 압축된 공급 공기중 제4부분과 더불어 간접 열 교환에 의해 증기화되고, 얻어진 응축된 제4부분을 제1탑속으로 공급됨을 특징으로 하는 방법.
  8. 제1항에 있어서, 공급 공기중 제3부분은 부분적으로 응축되고, 얻어진 증기는 계속해서 냉각된다음 제1탑속으로 주입됨을 특징으로 하는 방법.
  9. 제1항에 있어서, 공기 분리 설비로부터 액체를 배출하고, 이러한 액체를 액체 생성물로서 회수하는 단계로 이루어짐을 특징으로 하는 방법.
  10. 제9항에 있어서, 액체 생성물이 질소-농후 유체임을 특징으로 하는 방법.
  11. 제9항에 있어서, 액체 생성물이 산소-농후 유체임을 특징으로 하는 방법.
  12. 제1항에 있어서, (C)단계로부터 얻어진 액체가 (A)단계로부터 얻어진 증기 또는 (B)단계로부터 얻어진 증기에 비해 좀더 높은 지점에서 제1탑속으로 주입됨을 특징으로 하는 방법.
  13. 제1항에 있어서, 터빈팽창된 제1부분 또는 터빈 팽창된 제2부분의 압력보다 좀더 높은 압력을 갖는 공급 공기중 제5부분을 공기 분리 설비로부터 얻어진 유체와 더불어 간접 열 교환에 의해 냉각하고, 얻어진 제5부분을 제1탑속으로 공급하는 단계로 더욱더 이루어짐을 특징으로 하는 방법.
  14. 제1항에 있어서, 질소-농후 증기를 질소 기체 생성물로서 회수하는 단계로 더욱더 이루어짐을 특징으로하는 방법.
  15. (A)제1탑, 제2탑, 재비등기, 제1탑으로부터의 유체를 제비등기에 공급하는 수단 및 재비등기로부터의 유체를 제2탑에 공급하는 수단으로 구성된 공기 분리 설비; (B)제1터빈팽창기, 공급공기를 제1터빈팽창기에 공급하는 수단, 제1터빈팽창기로부터의 유체를 열교환기에 공급하는 수단, 및 열 교환기로 부터의 유체를 제1탑속으로 공급하는 수단; (C)제2터빈팽창기, 공급공기를 냉각하고 냉각된 공급공기를 제2터빈팽창기에 제공하는 수단, 및 제2터빈팽창기로부터의 유체를 제1탑속으로 공급하는 수단; (D)콘덴서, 콘덴서에 공급공기를 제공하는 수단 및 콘덴서로부터의 유체를 제2탑속으로 공급하는 수단; (E)공기분리 설비로부터의 유체를 콘덴서로 공급하는 수단; 및 (F)콘덴서로부터의 기체 생성물을 회수하는 수단으로 구성된, 공기를 저온 증류에 의해 분리하여 기체 생성물을 생성하는 장치.
  16. 제15항에 있어서, 공기 분리 설비로부터 콘덴서로 공급된 유체의 압력을 증가시키는 수단으로 더욱더 구성됨을 특징으로 하는 장치.
  17. 제15항에 있어서, 공기 분리 설비로부터 콘덴서로 공급된 유체의 온도를 증가시키는 수단으로 더욱더 구성됨을 특징으로 하는 장치.
  18. 제15항에 있어서, 공기 분리 설비가 아르곤 탑 및 제2탑으로 부터의 유체를 아르곤 탑으로 공급하는 수단으로 더욱더 구성됨을 특징으로 하는 장치.
  19. 제18항에 있어서, 아르곤 탑 콘덴서, 아르곤 탑으로부터의 증기를 아르곤 탑 콘덴서로 제공하는 수단, 아르곤 탑 콘덴서로부터의 액체를 아르곤 탑 열 교환기로 공급하는 수단, 상기 아르곤 탑 열 교환기로 공급 공기를 제공하며 상기 아르곤 탑 열 교환기로부터 제1탑속으로 공급공기를 제공하는 수단으로 더욱더 구성됨을 특징으로 하는 장치.
  20. 제15항에 있어서, 제1탑이 구조적 패킹으로 이루어진 증기-액체 접촉 엘러멘트를 포함함을 특징으로 하는 장치.
  21. 제15항에 있어서, 제2탑이 구조적 패킹으로 이루어진 증기-액체 접촉 엘러멘트를 포함함을 특징으로 하는 장치.
  22. 제18항에 있어서, 아르곤 탑이 구조적 패킹으로 이루어진 증기-액체 접촉 엘러멘트를 포함함을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910010628A 1990-06-27 1991-06-26 이중 온도 공급된 터빈팽창을 사용한 저온 공기 분리 장치 KR960003273B1 (ko)

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US07/544,643 US5108476A (en) 1990-06-27 1990-06-27 Cryogenic air separation system with dual temperature feed turboexpansion
US07/544,643 1990-06-27
US7/544,643 1990-06-27

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US5108476A (en) 1992-04-28
DE69100399T3 (de) 1998-11-19
DE69100399T2 (de) 1994-01-13
DE69100399D1 (de) 1993-10-28
ES2044653T5 (es) 1998-08-16
EP0464636A1 (en) 1992-01-08
EP0464636B2 (en) 1998-06-24
KR960003273B1 (ko) 1996-03-07
CA2045740C (en) 1994-05-17
EP0464636B1 (en) 1993-09-22
JPH04227457A (ja) 1992-08-17
CA2045740A1 (en) 1991-12-28
ES2044653T3 (es) 1994-01-01
BR9102696A (pt) 1992-02-04
CN1057380C (zh) 2000-10-11
CN1058467A (zh) 1992-02-05

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