KR860004295A - 보조 컬럼을 추진력으로 하는 혼성질소 발생기 - Google Patents

보조 컬럼을 추진력으로 하는 혼성질소 발생기 Download PDF

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KR860004295A
KR860004295A KR1019850008513A KR850008513A KR860004295A KR 860004295 A KR860004295 A KR 860004295A KR 1019850008513 A KR1019850008513 A KR 1019850008513A KR 850008513 A KR850008513 A KR 850008513A KR 860004295 A KR860004295 A KR 860004295A
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nitrogen
rich
main
column
main column
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KR900007209B1 (ko
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츙 해리
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에드워드 지, 그리어
유니온 카바이드 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
    • 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
    • F25J3/0443—A main column system not otherwise provided, e.g. a modified double column flowsheet
    • 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
    • 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
    • F25J3/04212—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 and simultaneously condensing vapor from a column serving as reflux within the or another 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
    • F25J3/04303—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
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
    • F25J2200/92—Details relating to the feed point
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/42—Nitrogen or special cases, e.g. multiple or low purity N2
    • F25J2215/44—Ultra high purity nitrogen, i.e. generally less than 1 ppb impurities
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/10—Mathematical formulae, modeling, plot or curves; Design methods

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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)

Abstract

내용 없음

Description

보조 컬럼을 추진력으로 하는 혼성 질소 발생기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명 공정의 한가지 적합한 구체형에 따른 개략적 표현.
제2도는 본 발명 공정의 또 한가지 적합한 구체형에 따른 개략적 표현.
제4도는 본 발명의 공정을 의한 멕카베-디엘레 선도.
＊도면의 주요부분에 대한 부호의 설명
1 : 압축기 2 : 공급 공기 흐름
3 : 열교환기 4 : 간접 열교환올 의한 흐름
5 : 냉각된 공급 공기 6 : 주요부분의 공급 공기
7 : 보조부분의 공급공기 8 : 터어보 팽창기
9 : 주 컬럼(maincolumn) 10 : 응축기
15 : 트레이(tray) 16 : 연출흐름(withdraw stream)
17 : 밸브 18 : 응축기
19 : 제1부분의 질소가 풍부한 중기 20 : 농축된 질소가 풍부한 제 1부분
21 : 흐름(20)의 일부분 22 : 제2부분의 질소가 풍부한 증기
23 : 산소가 짙은 증기흐름 25 : 유출(outgoing)흐름
26 : 보조흐름 27 : 보조부분의 작은 일부분
28 : 주요부분의 부흐름(side stream) 30 : 열교환기
40 : 공급공기 41 : 팽창흐름
43 : 공정배출흐름 44 : 회수흐름
45 : 도입흐름 50 : 예비분류영역
51 : 질소가 풍부한 증기분류의 흐름 52 : 산소가 짙은 액체분류
53 : 밸브 54 : 도입흐름
56 : 용속된 질소가 풍부한 분류의 흐름 57 : 밸브
58 : 도입흐름 A : 정의 궤적
B : 평형선 C : 조작선
F : 공기공급과 질소 환류공급 사이의 주 컬럼을 나타대는 선분
G : 주 컬럼 상부의 L/V 비율을 기술하는 선분

Claims (15)

  1. (1) 주요부분의 공급공기를 35 내지 145psia사이의 압력에서 조작되는 주 정류 컬럼 내로 도입하여 질소가 풍부한 증기와 산소가 짙은 액체로 공급공기를 분리하며; (2) 보조부분의 공급공기를 주 컬럼에서 조작되는 압력보다 큰 압력으로 조작되는 예비분류 영역내로 도입하여 질소가 짙은 증기분류와 산소가 짙은 액체분류로 분리하며; (3) 적어도 소량의 질소가 풍부한 증기분류를 주 컬럼에서 생산된 산소가 짙은 액체와의 간접 열교환에 의해 응축시키며; (4) 환류액체 및 부가적인 공급으로, 적어도 소량의 얻어지는 응축된 질소가 풍부한 분류를 주된 부분의 공급공기가 주 컬럼내로 도입되는 지정의 상부에 있는 적어도 하나의 트레이를 향해 주 컬럼 내로 도입하며; (5) 기화하는 산소가 짙은 액체와의 간접 열교환에 의해 제1부분의 질소가 풍부한 증기를 응축하며; (6) 적어도 소량의 얻어지는 응축된 질소가 풍부한 제1부분을 응축된 질소가 풍부한 분류가 주 컬럼내로 도입되는 지정의 상부에 있는 적어도 하나의 트레이를 향해 주 컬럼에 통과시키며; (7) 생산물 질소로 제2부분의 질소가 풍부한 증기를 회수하는 단계를 포함하는 것을 특징으로 하는 공급공기의 저온 정류에 의한 비교적 고순도와 높은 수율에서 질소의 생산 공정.
  2. 제1항에 있어서, 주요부분은 공급공기의 약 60 내지 95%를 포함하고 보조부분은 공급공기의 약 5내지 40%를 포함하는 것을 특징으로 하는 공정.
  3. 제1항에 있어서, 주요부분은 공급공기의 약 70 내지 90%를 포함하고 보조부분은 공급공기의 약 10내지 30%를 포함하는 것을 특징으로 하는 공정.
  4. 제1항에 있어서, 예비분류 영역은 주 정류 컬럼이 조작되는 압력 이상으로 10 내지 90psi사이의 압력에서 조작되는 것을 특징으로 하는 공정.
  5. 제1항에 있어서, 모든 응축된 질소가 풍부한 제1부분이 주 컬럼을 지나는 것을 특징으로 하는 공정.
  6. 제1항에 있어서, 소량의 응축된 질소가 풍부한 제1부분을 생산물 액체 질소로 회수되는 것을 특징으로 하는 공정.
  7. 제1항에 있어서, 전체의 공급공기는 주 컬럼의 조작 압력보다 큰 압력까지 압축하고 주요부분의 공급공기는 주 컬럼내로 도입되기 이전에 주 컬럼의 조작 압력까지 팽창하는 것을 특징으로 하는 공정.
  8. 제7항에 있어서, 주요부분 공급공기의 팽창에 의해 공정을 위한 냉동이 발생하는 것을 특징으로 하는 공정.
  9. 제1항에 있어서, 단지 보조부분의 공급공기가 주 컬럼의 조작 압력보다 큰 압력까지 압축되는 것을 특징으로 하는 공정.
  10. 제1항에 있어서, 제3부분의 공급공기는 적어도 하나의 귀환 흐름과의 간접 열교환에 의해 응축되고 얻어지는 제3부분은 주요부분의 공급공기와 응축된 질소가 풍부한 분류가 주 컬럼 내로 도입되는 지점의 사이를 향해 컬럼내로 도입되는 것을 특징으로 하는 공정.
  11. 제1항에 있어서, 생산물 질소가 적어도 98몰 %의 순도를 가지는 것을 특징으로 하는 공정.
  12. 제1항에 있어서, 생산물 질소는 공정에 도입된 질소의 적어도 50%인 것을 특징으로 하는 공정.
  13. 제1항에 있어서, 적어도 소량의 산소가 짙은 액체분류를 응축된 질소가 풍부한 분류가 도입되는 지점의 아래에 있는 적어도 하나의 트레이를 향해, 주 정류 컬럼 내로 도입하는 것을 특징으로 하는 공정.
  14. 제1항에 있어서, 예비분류 영역은 주 컬럼이 가지고 있는 평형단 수의 이하를 가지는 소형 컬럼을 포함하는 것을 특징으로 하는 공정.
  15. 제1항에 있어서, 예비분류 영역이 적어도 하나의 응축기와 상 분리기를 포함하는 것을 특징으로 하는 공정.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850008513A 1984-11-15 1985-11-14 보조 컬럼을 추진력으로 하는 혼성 질소 발생기 KR900007209B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/671,940 US4604117A (en) 1984-11-15 1984-11-15 Hybrid nitrogen generator with auxiliary column drive
US671,940 1984-11-15

Publications (2)

Publication Number Publication Date
KR860004295A true KR860004295A (ko) 1986-06-20
KR900007209B1 KR900007209B1 (ko) 1990-10-05

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Country Link
US (1) US4604117A (ko)
EP (1) EP0182620B1 (ko)
JP (1) JPS61122479A (ko)
KR (1) KR900007209B1 (ko)
BR (1) BR8505755A (ko)
CA (1) CA1245972A (ko)
ES (1) ES8701682A1 (ko)
MX (1) MX164314B (ko)

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MX164314B (es) 1992-08-03
CA1245972A (en) 1988-12-06
EP0182620A3 (en) 1987-04-29
EP0182620A2 (en) 1986-05-28
EP0182620B1 (en) 1989-08-09
JPS61122479A (ja) 1986-06-10
ES548866A0 (es) 1986-12-01
ES8701682A1 (es) 1986-12-01
US4604117A (en) 1986-08-05
JPH0140272B2 (ko) 1989-08-28
KR900007209B1 (ko) 1990-10-05
BR8505755A (pt) 1986-08-12

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