KR880700227A - 공기증류로부터 증가된 아르곤회수 - Google Patents

공기증류로부터 증가된 아르곤회수

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KR880700227A
KR880700227A KR860700947A KR860700947A KR880700227A KR 880700227 A KR880700227 A KR 880700227A KR 860700947 A KR860700947 A KR 860700947A KR 860700947 A KR860700947 A KR 860700947A KR 880700227 A KR880700227 A KR 880700227A
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argon
zone
height
removal zone
rectifier
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KR930010595B1 (ko
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챨스 에릭슨 도날드
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챨스 에릭슨 도날드
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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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    • 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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    • F25J3/04006—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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    • 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
    • F25J3/04187—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
    • 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
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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
    • F25J3/04248—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
    • 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
    • F25J3/04375—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
    • 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
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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
    • F25J3/04642—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
    • F25J3/04642—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
    • F25J3/0469—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 an intermediate re-boiler/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
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
    • F25J2200/54—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column in the low pressure column of a double pressure main 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
    • 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
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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
    • 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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    • 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
    • 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
    • F25J2250/50—One fluid being oxygen
    • 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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    • 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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

내용 없음

Description

공기증류로부터 증가된 아르곤회수
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 보조의 아르곤 사이드암(즉, 아르곤 정류기)를 갖는 통상의 LOXBOIL이중의 압력공기 분리장치속으로 아르곤 정류기와 N2제거지역 사이의 잠열교환기의 참여를 설명한다.

Claims (20)

  1. 아르곤 제거지역, 질소 제거지역 및 아르곤 정류지역으로 구성되는 저압컬럼과 고압정류기로 구성되는 증류장치에서 냉각되고, 정제된 공기를 증류하여 고순도 산소 및 부생성 아르곤을 제조하는 공정에 있어서, 아르곤 정류지역에 중간환류를 제공하고, 질소 제거지역의 중간높이에 중간 재끓임을 제공하기 위해 아르곤 정류지역과 질소 제거지역 사이의 잠열을 교환하는 것으로 구성됨을 특징으로 하는 제조공정.
  2. 제1항에 있어서, 상기 중간 재끓임 높이 이상의 높이에서 HP정류기 바닥 생성물의 적어도 일부분으로부터 유도된 공급유체를 상기N2제거지역으로 이송시킴을 특징으로 하는 공정.
  3. 제1항에 있어서 HP정류기로부터의 액체질소 상부 생성물을 부분적으로 재가압하고, 부분적으로 재가압된 LN2와 더불어 잠열교환에 의해 얻어진 응축물과 더불어 저압칼럼의 아르곤 제거 지역의 적어도 일부분을 환류시키고 : 그리고 얻어진 기체상태의 부분적으로 재가압된 N2를 팽창시킴을 특징으로 하는 공정.
  4. 제3항에 있어서, 상기 아르곤 정류지역의 중간 높이로부터 재가압된 N2와 더불어 잠열교환을 위한 증기를 얻고,상기 아르곤 정류지역의 중간높이로 상기 응축물을 되돌리고, 그로인해 추가의 재끓임 및 환류가 아르곤 정류지역의 하부를 통과함을 특징으로 하는 공정.
  5. 제1항에 있어서, 가압된 공기흐름을 부분적으로 팽창시키고 : 상기LP컬럼으로부터의 액체 증발과 함께 잠열교환에 의해 부분적으로 팽창된 흐름을 압축하고 그리고 환류로써 얻어진 응축물을 N2제거지역에 공급함을 특징으로 하는 공정.
  6. 제2항에 있어서, 공급공기의 적어도 한부분 및 HP정류기 증기의 적어도 한부분을 팽창시켜 냉각화를 제공하고 : 상기 공급공기의 전체적으로 응축하는 소량의 분획과 함께 잠열교환에 의해 가압된 아르곤 스트리퍼 액체 산소바닥 생성물을 증발시킴을 특징으로 하는 공정.
  7. 제6항에 있어서, 축합된 공기를 두 흐름으로 나누고, 이들을 중간환류로써 각각 상기 HP정류기의 중간높이 및 상기 N2제거지역 속으로 주입함을 특징으로 하는 공정.
  8. 아르곤 제거지역, 아르곤 정류지역 및 질소 제거지역으로 구성되는 저압컬럼 및 고압정류기로 구성되는 이중압력 증류장치에 있어서, a)N2제거지역의 중간높이 액체와 더불어 상부 증기의 잠열교환에 의해 상기 아르곤 정류기 상부를 환류하고 : b)공급공기의 일부분을 팽창시켜 냉각을 제공하고 : c) 공급공기의 전체적으로 응축하는 소량의 분획과 함께 잠열교환에 의해 상기 스트리퍼 바닥압력보다 더높은 압력에서 아르곤 스트리퍼 액체산소 바닥 생성물을 증발시키고 : 그리고 d) 얻어진 액체공기를 두흐름으로 나누고, 각각의 흐름을 상기 HP정류기의 중간높이 및 그를 위한 중간환류로써 상기 N2제거지역으로 공급하는 것으로 구성됨을 특징으로 하는 고순도산소 및 공동생성 아르곤을 제조하기 위한 공기증류공정.
  9. 제3항에 있어서, LP컬럼에 중간 재끓임을 제공하기 위해 기체상태의 흐름을 함유하는 부분적으로 팽창된 질소를 응축하고, 얻어진 응축물과 더불어 LP컬럼을 환류시킴을 특징으로 하는 공정.
  10. 아르곤 제거 지역, 질소 제거지역 및 아르곤 정류지역으로 구성되는 저압컬럼 및 고압정류기로 구성되는 고순도 산소 및 부생성 아르곤을 제조하기 위한 저온공기증류 장치에 있어서, 아르곤 정류지역의 중간높이로부터 질소제거지역의 중간높이로 잠열을 교환하기 위한 수단.
  11. 제10항에 있어서, 상기HP정류기로부터 부분적으로 재가압된 액체 상부 생성물과 상기LP컬럼의 중간높이 증기 사이의 잠열교환을 위한 수단 : 및 얻어진 증발된 액체를 팽창시키기 위한 수단으로 구성됨을 특징으로 하는 장치.
  12. 아르곤 제거 지역, 질소 제거지역 및 아르곤 정류지역으로 구성되는 저압컬럼 및 고압정류기로 구성되는 증류장치에 있어서, a) HP 정류기 상부로부터의 액체질소를 부분적으로 팽창시키고 : b) 아르곤 정류지역 중간높이 증기와 더불어 잠열을 교환하여 부분적으로 팽창된 상기액체질소를 증발시키고 : c) 액화된 중간 높이 증기와 더불어 아르곤 정류기를 환류시키고 : d) 상기 증발된 부분적으로 팽창된 질소를 팽창시킴을 특징으로 하는 공기을류에 의해 고순도산소 및 부생성아르곤을 제조하는 공정.
  13. 제12항에 있어서, 상기 지역의 바닦위에 적어도 2개의 이론적인 단계를 상기 아르곤 정류지역 중간높이에 위치시킴을 특징으로 하는 공정.
  14. 제12항에 있어서, 냉각되고 정제된 곱급공기의 분획을 응축시키면서, 잠열교환에 의해 LP컬럼의 바닦압력보다 더 큰 압력에서 저압컬럼으로부터 필수적으로 모든 액체고순도 산소 바닦 생성물을 증발시키고 : 얻어진 응축된 공기의 적어도 일부분을 중간 환류로써 중간높이에서 N2제거지역으로 주입시킴을 특징으로 하는 공정.
  15. 제12항에 있어서, 부분적으로 응축되는 냉각되고, 정제된 공급공기의 적어도 주분획과 더불어 잠열교환에 의해 LP컬럼바닦 압력보다 높은 압력에서 LP컬럼으로부터의 액체 고순도 산소 바닦 생성물의 적어도 일부분을 증발시킴을 특징으로 하는 공정.
  16. 제12항에 있어서, 상기첫번째 중간높이와 같을 수 있는 아르곤 정류지역의 두번째 중간높이와 질소 제거지역의 중간높이 사이에 분리하여 잠열을 교환하고, 질소 제거지역에 중간 재끓임 및 아르곤 정류지역에 중간 환류의 두번째 근원을 제공함을 특징으로 하는 공정.
  17. 제12항에 있어서, HP정류기로부터 기체상태의 흐름을 함유하는 가압된 질소를 부분적으로 팽창시키고 : N2제거지역으로부터 중간높이 액체의 증발과 더불어 잠열교환에 의해 부분적으로 팽창된 흐름을 압축하고 : 얻어진 응축물을 환류로써 N2제거지역속으로 직접주입함을 특징으로 하는 공정.
  18. N2제거지역으로부터 중간높이 유체가 증발되고, 아르곤 정류기로부터 중간높이 유체가 응축되는 적어도 하나의 잠열교환기 : 아르곤 정류기로부터 중간유체가 응축되고, 질소함유 액체가 중간압력으로 증발되는 잠열교환기 : 및 상기 중간압력증기를 위한 팽창기로 구성되는 아르곤 회수증가를 위한 수단으로 구성됨을 특징으로 하는 질소제거지역 및 아르곤 정류지역을 포함하는 저압컬럼으로 구성되는 산소 및 아르곤제조를 위한 장치.
  19. 제18항에 있어서, 응축되는 N2함유기체가 N2제거지역으로 중간 재끓임을 제공하는 잠열교환기 및 상기 N2함유기체를 방출하는 팽창기로 구성됨을 특징으로 하는 장치.
  20. 제14항에 있어서, 상기 응축된 공기의 두번째 부분을 그를 위한 중간 환류로써 중간높이에서 HP정류기속으로 주입함을 특징으로 하는 공정.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860700947A 1985-04-29 1986-04-29 공기 증류로부터의 아르곤 회수율을 증가시키는 공정 및 장치 KR930010595B1 (ko)

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US06/728,264 US4670031A (en) 1985-04-29 1985-04-29 Increased argon recovery from air distillation
US728264 1985-04-29
PCT/US1986/000949 WO1986006462A1 (en) 1985-04-29 1986-04-29 Increased argon recovery from air distillation

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DE3675903D1 (de) 1991-01-10
EP0225911A1 (en) 1987-06-24
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US4670031A (en) 1987-06-02
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AU5817886A (en) 1986-11-18

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