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KR920014708A - 승압된 질소를 제조하기 위한 방법 및 장치 - Google Patents

승압된 질소를 제조하기 위한 방법 및 장치 Download PDF

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KR920014708A
KR920014708A KR1019920000773A KR920000773A KR920014708A KR 920014708 A KR920014708 A KR 920014708A KR 1019920000773 A KR1019920000773 A KR 1019920000773A KR 920000773 A KR920000773 A KR 920000773A KR 920014708 A KR920014708 A KR 920014708A
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South Korea
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enriched
nitrogen
column
main column
oxygen
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KR1019920000773A
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KR0161296B1 (ko
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청 헤리
파트릭 보나퀴스트 단테
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티모티 엔. 비숍
유니온 카바이드 인더스트리얼 개시즈 테크놀러지 코포레이션
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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
    • 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
    • F25J3/04151—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
    • 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
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/0423—Subcooling of liquid process 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
    • F25J3/04151—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
    • F25J3/04236—Integration of different exchangers in a single core, so-called integrated cores
    • 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
    • F25J3/04406—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
    • F25J3/04424—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 without thermally coupled high and low pressure columns, i.e. a so-called split 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
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/42—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
    • 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
    • Y10S62/939—Partial feed stream expansion, air

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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)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

내용 없음

Description

승압된 질소를 제조하기 위한 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 한 구현예를 도시한 개략도, 제2도는 공급 공기 터어보 팽창을 사용하여 냉각을 발생시키는 본 발명의 바람직한 구현예를 나타낸 개략도, 제3도는 폐기물 스트리임 터어보 팽창시켜 냉각을 발생시키는 본 발명의 다른 바람직한 구현예를 도시한 개략도.

Claims (16)

  1. (A) 압축된 공급공기를 제곱인치당 80내지 150 파운드 절대압력의 범위 내의 압력에서 조작하는 주컬럼에 제공하는 단계; (B) 주컬럼 안에 공급공기를 질소 - 농후된 성분과 산소 - 농후화된 성분으로 분리하는 단계; (C) 산소 - 농후화된 성분을 주컬럼 보다 낮은 압력에서 조작하는 보조컬럼에 제공하는 단계; (D) 산소 농후화된 성분을 질소 - 농후화된 증기와 산소 - 농후화된 액체로 분리하는 단계 ; (E) 질소 - 농후화된 증기를 산소 - 농후화된 액체로 간접 열교환함에 의해 질소 농후화된 액체를 생성하는 단계; (F) 질소 - 농후화된 액체의 증기를 실제적인 주칼럼의 조작압력으로 조작시키는 단계; (G) 질소 - 농후화된 성분의 추가의 제조를 위해 가압된 질소 - 농후화된 액체를 주컬럼에 제공하는 단계; (H) 승압된 질소를 생성하면서 주컬럼으로 부터 질소 농후화된 성분을 회수하는 단계로 향상된 갖는 승압된 질소를 제조하기 위한 방법.
  2. 제1항에 있어서, 질소 - 농후화된 성분의 부분이 응축되고 환류로서 주컬럼 안에서 사용되는 것을 특징으로 하는 방법.
  3. 제2항에 있어서, 질소 - 농후화된 성분이 산소 - 농후화된 성분으로 간접 열교환함에 의해 응축되고 결과된 산소 - 농후화된 성분이 보조 컬럼으로 통과되는 것을 특징으로 하는 방법.
  4. 제3항에 있어서, 산소 - 농후화된 성분이 응축된 질소 - 농후화된 성분으로 간접 열교환함에 의해 부분적으로 증기화하고 결과된 산소 - 농후화된 증기와 산소 - 노우화된 액체 모두를 보조컬럼으로 통과시키는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 질소 - 농후화된 액체의 압력이 액체를 펌핑함에 의해 증가되는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 추가로 그러한 부분을 주컬럼에 도입하기 전에 압축된 공급공기의 부분을 액화시키는 단계를 포함시키는 것을 특징으로 하는 방법.
  7. 제6항에 있어서, 상기 공급공기 부분이 보조컬럼의 바닥부분과 간접 열교환함에 의해 액화되고, 이에 따라 보조컬럼을 위한 증기 상승류를 제공하는 것을 특징으로 하는 방법.
  8. 제1항에 있어서, 추가로 압축된 공급공기의 부분을 터어보 팽창시켜서 냉각을 발생시키는 단계와 터어보 팽창된 공급공기 부분을 보조컬럼에 도입하여 시스템에 냉각을 제공하는 단계를 포함하는 것을 특징으로 하는 방법.
  9. 제1항에 있어서, 추가로 산소 - 농후화된 성분의 터어보 팽창시키는 단계와 압축된 공급공기와 간접 열교환하며 상기 터어보 팽창된 부분을 통과시켜서 시스템에 냉각을 제공하는 단계를 포함하는 것을 특징으로 하는 방법.
  10. 제1항에 있어서, 질소 - 농후화된 성분의 부분을 터어보 팽창시켜 냉각을 발생시키고 터어보 팽창된 질소 - 농후화된 부분을 압축된 공급공기로 간접 열교환하면서 통과시켜 시스템에 냉각을 제공하는 것을 특징으로 하는 방법.
  11. (A) 상부 응축기와 공급물을 주컬럼에 제공하기 위한 수단을 갖는 주컬럼; (B) 주컬럼의 더낮은 부분으로부터 유체를 상부 응축기에 제공하기 위한 수단; (C) 상부 응축기를 갖는 보조컬럼; (D) 주컬럼 상부 응축기로부터 유체를 보조컬럼에 제공하기 위한 수단; (E) 보조컬럼 상부 응축기로 부터 액체를 상기 액체의 압력을 증가시키기 위한 수단을 포함하는 주컬럼에 제공하기 위한 수단; (F) 주컬럼으로 부터 생성물을 회수하기 위한 수단으로 이루어진 향상된 회수율을 갖는 승압된 질소를 제조하기 위한 장치.
  12. 제11항에 있어서, 압력증가수단이 액체펌프로 이루어지는 것을 특징으로 하는 장치.
  13. 제11항에 있어서, 추가로 터어보 팽창기, 공급물을 터어보 팽창기에 제공하는 수단 및 터어보 팽창기로부터 공급물을 보조컬럼에 제공하는 수단을 포함하는 것을 특징으로 하는 장치.
  14. 제11항에 있어서, 추가로 터어보 팽창기, 주컬럼 상부 응축기로 부터 유체를 터어보 팽창기에 제공하는 수단과 터어보 팽창기로 부터 유체를 공급물로 간접 열교환 하면서 제공하는 수단을 포함하는 것을 특징으로 하는 장치.
  15. 제11항에 있어서, 추가로 그 부분이 주컬럼에 제공되기 전에 공급물 부분을 액화하는 수단을 포함하는 것을 특징으로 하는 장치.
  16. 제15항에 있어서, 상기 공급물 부분을 액화하기 위한 수단이 보조컬럼의 더낮은 부분의 재비기로 이루어지는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019920000773A 1991-01-22 1992-01-21 승압된 질소를 제조하기 위한 방법 및 장치 KR0161296B1 (ko)

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US07/644,228 US5098457A (en) 1991-01-22 1991-01-22 Method and apparatus for producing elevated pressure nitrogen

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DE69200928T2 (de) 1995-07-06
CA2059774C (en) 1994-12-13
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