CN1020884C - 一种改进的生产干燥高纯氮气的方法及其系统 - Google Patents

一种改进的生产干燥高纯氮气的方法及其系统 Download PDF

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Publication number
CN1020884C
CN1020884C CN90104398A CN90104398A CN1020884C CN 1020884 C CN1020884 C CN 1020884C CN 90104398 A CN90104398 A CN 90104398A CN 90104398 A CN90104398 A CN 90104398A CN 1020884 C CN1020884 C CN 1020884C
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gas
film
mentioned
air
unit
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Expired - Fee Related
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CN90104398A
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Chinese (zh)
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CN1048684A (zh
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拉维·普拉萨德
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Union Carbide Industrial Gases Technology Corp
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Union Carbide Industrial Gases Technology Corp
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/225—Multiple stage diffusion
    • B01D53/226—Multiple stage diffusion in serial connexion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • C01B21/0405—Purification or separation processes
    • C01B21/0494—Combined chemical and physical processing
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0001—Separation or purification processing
    • C01B2210/0003—Chemical processing
    • C01B2210/0006—Chemical processing by reduction
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0001—Separation or purification processing
    • C01B2210/0009—Physical processing
    • C01B2210/001—Physical processing by making use of membranes

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Drying Of Gases (AREA)
  • Treating Waste Gases (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
CN90104398A 1989-05-12 1990-05-11 一种改进的生产干燥高纯氮气的方法及其系统 Expired - Fee Related CN1020884C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US350,849 1989-05-12
US07/350,849 US4931070A (en) 1989-05-12 1989-05-12 Process and system for the production of dry, high purity nitrogen

Publications (2)

Publication Number Publication Date
CN1048684A CN1048684A (zh) 1991-01-23
CN1020884C true CN1020884C (zh) 1993-05-26

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CN90104398A Expired - Fee Related CN1020884C (zh) 1989-05-12 1990-05-11 一种改进的生产干燥高纯氮气的方法及其系统

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Country Link
US (1) US4931070A (enExample)
EP (1) EP0397204B1 (enExample)
JP (1) JPH035309A (enExample)
KR (1) KR950006633B1 (enExample)
CN (1) CN1020884C (enExample)
AT (1) ATE111872T1 (enExample)
BR (1) BR9002221A (enExample)
CA (1) CA2016570A1 (enExample)
DE (1) DE69012642T2 (enExample)
ES (1) ES2063857T3 (enExample)

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Also Published As

Publication number Publication date
US4931070A (en) 1990-06-05
BR9002221A (pt) 1991-08-13
EP0397204A1 (en) 1990-11-14
CA2016570A1 (en) 1990-11-12
DE69012642D1 (de) 1994-10-27
EP0397204B1 (en) 1994-09-21
CN1048684A (zh) 1991-01-23
JPH0565442B2 (enExample) 1993-09-17
JPH035309A (ja) 1991-01-11
ES2063857T3 (es) 1995-01-16
KR900017904A (ko) 1990-12-20
KR950006633B1 (ko) 1995-06-21
ATE111872T1 (de) 1994-10-15
DE69012642T2 (de) 1995-04-06

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