KR920000364A - 이중 공급공기 사이드 콘덴서를 갖는 저온공기분리 시스템 - Google Patents

이중 공급공기 사이드 콘덴서를 갖는 저온공기분리 시스템 Download PDF

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KR920000364A
KR920000364A KR1019910010627A KR910010627A KR920000364A KR 920000364 A KR920000364 A KR 920000364A KR 1019910010627 A KR1019910010627 A KR 1019910010627A KR 910010627 A KR910010627 A KR 910010627A KR 920000364 A KR920000364 A KR 920000364A
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column
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capacitor
argon
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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
    • 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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
    • F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
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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
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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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
    • F25J3/04103—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression using solely hydrostatic liquid head
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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
    • 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
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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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    • F25J3/04151—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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    • F25J3/04248—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
    • 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
    • F25J3/04296—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
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    • 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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    • 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
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    • F25J3/04654—Producing crude argon in a crude argon column
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    • 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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    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
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    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F25J2250/50—One fluid being oxygen
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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
    • F25J2250/58—One fluid being argon or crude argon
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    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
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    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/939—Partial feed stream expansion, air
    • Y10S62/94—High pressure column

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
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Abstract

내용 없음

Description

이중 공급공기 사이드 콘덴서를 갖는 저온공기분리 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 저온공기 분리 시스템 바람직하게는 한 구현예의 간단한 개략적 흐름도,
제2도는 산소비등 압력에 대한 공기응축압력의 그래프.

Claims (20)

  1. (A) 냉각 압축된 공급공기의 제1부분중 일부만이라도 응축시키고, 얻어진 액체를 60 내지 100psia의 압력에서 작동되는 공기 분리시설의 제1컬럼에 도입하는단계; (B) 냉각 압축된 공급공기인 제2부분을 터보팽창시키고, 얻어진 터보 팽창된 공급공기의 제1부분을 상기 제1컬럼에 도입하는 단계; (C) 터보팽창된 공급공기의 제2부분중 일부만이라도 응축시키고, 얻어진 유체를 상기 제1컬럼에 도입하는 단계; (D) 상기 제1컬럼에 도입된 유체를 질소농후유체와 산소농후유체로분리하고, 상기 유체들을 상기 제1컬럼보다 낮은 압력에서 작동되는 공기분리시설이 제2컬럼에 도입하는 단계; (E) 제2컬럼에 통과된 유체를 질소농후증기 및 산소농후액체로 분리하는 단계; (F)산소 농후액체를 제2컬럼에서 회수하고, 회수된 산소농후액체의 제1부분을 단계(C)의 응축을 수행하는 터보팽탕된 공급공기의 제2부분과의 간접열교환에 의해 증발시키는 단계;(G)회수한 산소농후액체의 제2부분의 압력을 증가시키고, 얻어진 액체를 단계(A)의 응축을 수행하는 공급공기의 제1부분과의 간접열교환에 의해 증발시키는 단계; 및 (H) 단계 (F) 및 (G)의 열교환으로부터 얻어진 증기를 산소기체생성물로서 회수하는 단계들로 이루어진 기체 생성물을 제조하기 위한 저온증류의 공기 분리방법.
  2. 제1항에 있어서, 공급공기의 제1부분의 응축으로부터 얻어진 액체를 제1컬럼에 도입하기전에 더 냉각시킴을 특징으로 하는 방법.
  3. 제1항에 있어서, 회수한 산소농후액체의제2부분을 공급공기의 응축 제1부분에 대해 증발하기전에 데우는 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 단계(A)에서 얻어진 액체를 단계(B)에서 얻어진 증기보다 더 높은 지점에서 제1컬럼에 도입하는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 공기분리시설이 이르곤 컬럼을 더 포함하고, 흐름을 제2컬럼에서 아르곤 컬럼으로 통과시켜 아르곤농후증기와 산소농후액체로 분리한 다음, 아르곤농후증기를 응축시켜 일부분만이라도 회수함을 특징으로 하는 방법.
  6. 제5항에 있어서, 아르곤 농후증기를 산소농후액체와의 간접열교환에 의해 응축시켜 아르곤농후액체를 제조함을 특징으로 하는 방법.
  7. 제6항에 있어서, 아르곤농후액체를 냉각압축된 공급공기의 제3부분과의 간접열교환에 의해 증발시키고, 얻어진 응축된 제3부분을 제1컬럼에 통과시킴을 특징으로 하는 방법.
  8. 제1항에 있어서, 공급공기이 제1부분을 부분적으로 응축시키고, 얻어진 증기를 잇달아 응축시킨 다음 제1컬럼에 도입하는 것을 특징으로 하는 방법.
  9. 제1항에 있어서, 공기분리시설에서 액체를 회수하고 상기 액체를 생성액체로서 회수함을 특징으로 하는 방법.
  10. 제9항에 있어서, 생성액체가 질소농후유체임을 특징으로 하는 방법.
  11. 제9항에 있어서, 생성액체가 산호농후유체임을 특지응로 하는 방법.
  12. 제1항에 있어서, 공급공기의 터보팽창된 제2부분보다 더 높은 압력을 갖는 공급공기의 제4부분을 공기분리시설로부터 얻은 유체와의 간접열교환에 의해 냉각시키고, 얻어진 제4부분을 제1컬럼에 통과시킴을 더 포함하는 방법.
  13. 제1항에 있어서, 생성질소기체로서 질소농후증기를 회수하는 것을 더 포함하는 방법.
  14. (A) 제1컬럼, 제2컬럼, 재비등기, 유체를 제1컬럼에서 재비등기로 통과시키는 장치 및 유체를 재비등기에서 제2컬럼으로 통과시키는 장치로 이루어진 공기분리시설; (B) 제1콘덴서, 공급공기를 제1콘덴서로 제공하는 장치 및 유체를 제1콘덴서에서 제1컬럼으로 통과시키는 장치; (C) 터보팽창기, 공급공기를 터보팽창기에 공급하는 장치 및 유체를 터보팽창기에서 제1컬럼으로 통과시키는 장치; (D)제2콘덴서, 유체를 터보팽창기에서 제2콘덴서로 통과시키는 장치 및 유체를 제2콘덴서에서 제1컬럼으로 통과시키는 장치; (E)유체를 공기분리시설에서 제2콘덴서로 통과시키는 장치 및 생성기체를 제2콘덴서로 회수하는 장치; 및 (F)유체의 압력을 증가시키는 장치로 이루어진 유체를 공기분리시설에서 제1콘덴서로 통과시키는 장치 및 생성기체를 제1콘덴서에서 회수하는 장치들로 이루어진 생성기체를 제조하기 위한 저온종류의 공기분리용 장치.
  15. 제14항에 있어서, 공기분리시설에서 제1콘덴서로 통과된 유체의 온도를 증가시키는 장치를 더 포함하는 장치.
  16. 제14항에 있어서, 공기분리시설이 아르콘컬럼 및 유체를 제2컬럼에서 아르곤컬럼으로 통과시키는 장치를 더 포함하는 것을 특징으로 하는 장치.
  17. 제16항에 있어서, 아르곤컬럼콘덴서, 증기를 아르곤컬럼에서 아르곤컬럼콘덴서로 제공하는 장치, 액체를 아르곤 컬럼콘덴서에서 아르곤컬럼열교환기로 통과시키는 장치, 공급공기를 아르곤컬럼교환기로 제공하는 장치 및 공급공기를 아르곤컬럼열교환에서 제1컬럼으로 제공하는 장치를 더 포함하는 장치.
  18. 제14항에 있어서, 제1럼이 구조패킹으로 이루어진 기-액 접촉 엘레멘트를 포함함을 특징으로 하는 장치.
  19. 제14항에 있어서, 제2컬럼이 구조패킹으로 이루어진 기-액 접촉 엘레멘트를 포함함을 특징으로 하는 장치.
  20. 제16항에 있어서, 아르곤컬럼이 구조패킹으로 이루어진 기-액 접촉 엘레멘트를 포함함을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910010627A 1990-06-27 1991-06-26 이중 공급공기 사이드 콘덴서를 갖는 저온공기분리 시스템 KR960003272B1 (ko)

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US5098456A (en) 1992-03-24
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CA2045738A1 (en) 1991-12-28
CN1041460C (zh) 1998-12-30
CN1058468A (zh) 1992-02-05
BR9102695A (pt) 1992-02-04
DE69100585T2 (de) 1994-03-31
CA2045738C (en) 1994-12-06
ES2045990T3 (es) 1994-01-16
JPH04227456A (ja) 1992-08-17
DE69100585D1 (de) 1993-12-09
KR960003272B1 (ko) 1996-03-07

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