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

승압된 질소를 제조하기 위한 방법 및 장치 Download PDF

Info

Publication number
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
Authority
KR
South Korea
Prior art keywords
enriched
nitrogen
column
main column
oxygen
Prior art date
Application number
KR1019920000773A
Other languages
English (en)
Other versions
KR0161296B1 (ko
Inventor
청 헤리
파트릭 보나퀴스트 단테
Original Assignee
티모티 엔. 비숍
유니온 카바이드 인더스트리얼 개시즈 테크놀러지 코포레이션
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
Application filed by 티모티 엔. 비숍, 유니온 카바이드 인더스트리얼 개시즈 테크놀러지 코포레이션 filed Critical 티모티 엔. 비숍
Publication of KR920014708A publication Critical patent/KR920014708A/ko
Application granted granted Critical
Publication of KR0161296B1 publication Critical patent/KR0161296B1/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
    • 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

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)
  • 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)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/644,228 US5098457A (en) 1991-01-22 1991-01-22 Method and apparatus for producing elevated pressure nitrogen
US7/644,228 1991-01-22
US07/644,228 1991-01-22

Publications (2)

Publication Number Publication Date
KR920014708A true KR920014708A (ko) 1992-08-25
KR0161296B1 KR0161296B1 (ko) 1998-11-16

Family

ID=24583996

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920000773A KR0161296B1 (ko) 1991-01-22 1992-01-21 승압된 질소를 제조하기 위한 방법 및 장치

Country Status (9)

Country Link
US (1) US5098457A (ko)
EP (1) EP0496355B1 (ko)
JP (1) JPH0789017B2 (ko)
KR (1) KR0161296B1 (ko)
BR (1) BR9200190A (ko)
CA (1) CA2059774C (ko)
DE (1) DE69200928T2 (ko)
ES (1) ES2065715T3 (ko)
MX (1) MX9200264A (ko)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197296A (en) * 1992-01-21 1993-03-30 Praxair Technology, Inc. Cryogenic rectification system for producing elevated pressure product
JP2966999B2 (ja) † 1992-04-13 1999-10-25 日本エア・リキード株式会社 超高純度窒素・酸素製造装置
US5233838A (en) * 1992-06-01 1993-08-10 Praxair Technology, Inc. Auxiliary column cryogenic rectification system
US5303556A (en) * 1993-01-21 1994-04-19 Praxair Technology, Inc. Single column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purity
US5321953A (en) * 1993-05-10 1994-06-21 Praxair Technology, Inc. Cryogenic rectification system with prepurifier feed chiller
US5355682A (en) * 1993-09-15 1994-10-18 Air Products And Chemicals, Inc. Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen
US5355681A (en) * 1993-09-23 1994-10-18 Air Products And Chemicals, Inc. Air separation schemes for oxygen and nitrogen coproduction as gas and/or liquid products
US5385024A (en) * 1993-09-29 1995-01-31 Praxair Technology, Inc. Cryogenic rectification system with improved recovery
US5402647A (en) * 1994-03-25 1995-04-04 Praxair Technology, Inc. Cryogenic rectification system for producing elevated pressure nitrogen
US5666823A (en) 1996-01-31 1997-09-16 Air Products And Chemicals, Inc. High pressure combustion turbine and air separation system integration
US5697229A (en) * 1996-08-07 1997-12-16 Air Products And Chemicals, Inc. Process to produce nitrogen using a double column plus an auxiliary low pressure separation zone
US5682762A (en) * 1996-10-01 1997-11-04 Air Products And Chemicals, Inc. Process to produce high pressure nitrogen using a high pressure column and one or more lower pressure columns
DE19735154A1 (de) 1996-10-30 1998-05-07 Linde Ag Verfahren und Vorrichtung zur Gewinnung von Druckstickstoff
US5836175A (en) * 1997-08-29 1998-11-17 Praxair Technology, Inc. Dual column cryogenic rectification system for producing nitrogen
US5983667A (en) * 1997-10-31 1999-11-16 Praxair Technology, Inc. Cryogenic system for producing ultra-high purity nitrogen
US6009723A (en) * 1998-01-22 2000-01-04 Air Products And Chemicals, Inc. Elevated pressure air separation process with use of waste expansion for compression of a process stream
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
US5906113A (en) * 1998-04-08 1999-05-25 Praxair Technology, Inc. Serial column cryogenic rectification system for producing high purity nitrogen
US5934104A (en) * 1998-06-02 1999-08-10 Air Products And Chemicals, Inc. Multiple column nitrogen generators with oxygen coproduction
DE19902255A1 (de) * 1999-01-21 2000-07-27 Linde Tech Gase Gmbh Verfahren und Vorrichtung zur Gewinnung von Druckstickstoff
US6330812B2 (en) 2000-03-02 2001-12-18 Robert Anthony Mostello Method and apparatus for producing nitrogen from air by cryogenic distillation
US6279345B1 (en) 2000-05-18 2001-08-28 Praxair Technology, Inc. Cryogenic air separation system with split kettle recycle
US6494060B1 (en) 2001-12-04 2002-12-17 Praxair Technology, Inc. Cryogenic rectification system for producing high purity nitrogen using high pressure turboexpansion
US6499312B1 (en) 2001-12-04 2002-12-31 Praxair Technology, Inc. Cryogenic rectification system for producing high purity nitrogen
US6568208B1 (en) * 2002-05-03 2003-05-27 Air Products And Chemicals, Inc. System and method for introducing low pressure reflux to a high pressure column without a pump
US6546748B1 (en) 2002-06-11 2003-04-15 Praxair Technology, Inc. Cryogenic rectification system for producing ultra high purity clean dry air
US7081153B2 (en) * 2003-12-02 2006-07-25 Honeywell International Inc. Gas generating system and method for inerting aircraft fuel tanks
GB0422635D0 (en) * 2004-10-12 2004-11-10 Air Prod & Chem Process for the cryogenic distillation of air
US20080127676A1 (en) * 2006-11-30 2008-06-05 Amcscorporation Method and apparatus for production of high-pressure nitrogen from air by cryogenic distillation
US20130000351A1 (en) * 2011-06-28 2013-01-03 Air Liquide Process & Construction, Inc. Production Of High-Pressure Gaseous Nitrogen
US9097459B2 (en) * 2011-08-17 2015-08-04 Air Liquide Process & Construction, Inc. Production of high-pressure gaseous nitrogen
US20130042647A1 (en) * 2011-08-18 2013-02-21 Air Liquide Process & Construction, Inc. Production Of High-Pressure Gaseous Nitrogen
CN104048478B (zh) * 2014-06-23 2016-03-30 浙江大川空分设备有限公司 高提取率和低能耗污氮气提纯氮气的设备及其提取方法
CN110869687B (zh) 2017-05-16 2021-11-09 特伦斯·J·埃伯特 液化气体用装置和工艺
CN108759307A (zh) * 2018-04-08 2018-11-06 佛山市佛钢气体有限公司 一种多段精馏制取高纯氮气装置及方法
WO2021242309A1 (en) 2020-05-26 2021-12-02 Praxair Technology, Inc. Enhancements to a dual column nitrogen producing cryogenic air separation unit
WO2021242308A1 (en) 2020-05-26 2021-12-02 Praxair Technology, Inc. Enhancements to a dual column nitrogen producing cryogenic air separation unit
WO2021242307A1 (en) 2020-05-28 2021-12-02 Praxair Technology, Inc. Enhancements to a dual column nitrogen producing cryogenic air separation unit
US11674750B2 (en) 2020-06-04 2023-06-13 Praxair Technology, Inc. Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402246A1 (de) * 1974-01-18 1975-07-31 Linde Ag Verfahren zur gewinnung von sauerstoff mittlerer reinheit
GB1576910A (en) * 1978-05-12 1980-10-15 Air Prod & Chem Process and apparatus for producing gaseous nitrogen
US4448595A (en) * 1982-12-02 1984-05-15 Union Carbide Corporation Split column multiple condenser-reboiler air separation process
US4439220A (en) * 1982-12-02 1984-03-27 Union Carbide Corporation Dual column high pressure nitrogen process
US4453957A (en) * 1982-12-02 1984-06-12 Union Carbide Corporation Double column multiple condenser-reboiler high pressure nitrogen process
US4595405A (en) * 1984-12-21 1986-06-17 Air Products And Chemicals, Inc. Process for the generation of gaseous and/or liquid nitrogen
FR2578532B1 (fr) * 1985-03-11 1990-05-04 Air Liquide Procede et installation de production d'azote
US4822395A (en) * 1988-06-02 1989-04-18 Union Carbide Corporation Air separation process and apparatus for high argon recovery and moderate pressure nitrogen recovery
GB8820582D0 (en) * 1988-08-31 1988-09-28 Boc Group Plc Air separation

Also Published As

Publication number Publication date
MX9200264A (es) 1992-09-01
DE69200928T2 (de) 1995-07-06
ES2065715T3 (es) 1995-02-16
BR9200190A (pt) 1992-10-06
KR0161296B1 (ko) 1998-11-16
EP0496355B1 (en) 1994-12-21
US5098457A (en) 1992-03-24
EP0496355A1 (en) 1992-07-29
DE69200928D1 (de) 1995-02-02
CA2059774C (en) 1994-12-13
JPH0789017B2 (ja) 1995-09-27
JPH0571870A (ja) 1993-03-23

Similar Documents

Publication Publication Date Title
KR920014708A (ko) 승압된 질소를 제조하기 위한 방법 및 장치
KR950033378A (ko) 고압질소를 제조하기 위한 저온정류 시스템
KR960013411A (ko) 저순도의 산소를 제조하기 위한 사이드 칼럼 저온 정류 시스템
KR920000363A (ko) 2중 생성물 사이드 콘덴서가 부착된 저온공기 분리 시스템
KR950009205A (ko) 펌프된 액체 질소에 의해 고압 질소를 생성하는 극저온 공기 분리 방법
US4783210A (en) Air separation process with modified single distillation column nitrogen generator
US5682764A (en) Three column cryogenic cycle for the production of impure oxygen and pure nitrogen
KR920000364A (ko) 이중 공급공기 사이드 콘덴서를 갖는 저온공기분리 시스템
JPH05203348A (ja) 精留による空気の分離方法及び装置
JPH07260343A (ja) ハイブリット生成物ボイラーを使用する極低温精留系
JPH02247485A (ja) 精溜によって空気を分解する方法及び装置
KR920000365A (ko) 이중온도 공급된 터빈팽창을 사용한 저온 기 분리장치
JPH0611258A (ja) アルゴンヒートポンプを備える極低温精留システム
US5711167A (en) High efficiency nitrogen generator
KR970016505A (ko) 이중 상 터어보 팽창을 이용하는 저온 정류 시스템
MXPA97008225A (en) A cryogenic cycle of three columns for the production of impure oxygen and nitrogen p
GB2180923A (en) Process and apparatus for the production of pressurized nitrogen
KR950033381A (ko) 고압산소를 생성시키기 위한 공기 비등 저온 정류시스템
JPH04227458A (ja) 生成物ガスを生成するための極低温蒸留による空気分離方法及びそのための装置
JP2865281B2 (ja) 空気原料の低温蒸留方法
JPH11316080A (ja) 超高純度窒素及び超高純度酸素を生成するための極低温精製方法及び装置
JP2000356464A (ja) 空気分離用低温蒸着システム
US20020053219A1 (en) Method for plant and separating air by cryogenic distillation
JP2000356465A (ja) 空気分離用低温蒸留システム
KR100291305B1 (ko) 저순도의 산소 및 고순도의 질소를 생산방법및장치

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20010817

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee