JPS6476904A - Pressure-swing adsorption-type nitrogen production process - Google Patents

Pressure-swing adsorption-type nitrogen production process

Info

Publication number
JPS6476904A
JPS6476904A JP62233409A JP23340987A JPS6476904A JP S6476904 A JPS6476904 A JP S6476904A JP 62233409 A JP62233409 A JP 62233409A JP 23340987 A JP23340987 A JP 23340987A JP S6476904 A JPS6476904 A JP S6476904A
Authority
JP
Japan
Prior art keywords
production apparatus
nitrogen
oxygen
exhaust gas
gas
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62233409A
Other languages
Japanese (ja)
Inventor
Masanobu Takemura
Hiroshi Miyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP62233409A priority Critical patent/JPS6476904A/en
Publication of JPS6476904A publication Critical patent/JPS6476904A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Oxygen, Ozone, And Oxides In General (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

PURPOSE:To enable effective utilization of exhaust gas of a nitrogen-production apparatus and an oxygen-production apparatus while keeping the purity of the produced nitrogen, by producing nitrogen with a nitrogen-production apparatus from air, using the exhaust gas of the nitrogen-production apparatus as a raw material of an oxygen-production apparatus, dehumidifying a part of the exhaust gas of the oxygen-production apparatus and using the gas as a raw material of the nitrogen-production apparatus. CONSTITUTION:Feed air is treated in a pretreatment column 21a, etc., to remove H2O and CO2 and the treated air is repeatedly subjected to the steps of adsorption-desorption- compression with an adsorption column 41a, etc., to increase the N2 purity and obtain the objective N2 gas product. The oxygen-rich exhaust gas of the above pressure-swing adsorption- type nitrogen-production apparatus (a) is used as a part of feed air for a pressure-swing adsorption-type oxygen-production apparatus (b) for the production of O2 gas product with an adsorption column 41b in the same manner as above. Since the N2-rich exhaust gas of the oxygen-production apparatus (b) sucked with a vacuum pump 13b contains a large amount of H2O, it is dehumidified with a dehumidifying means 6 and utilized as a part of feed air for the nitrogen-production apparatus (a). The exhaust gases of both apparatuses (a) and (b) can be effectively utilized by this process and, in addition to the above, the overload of the pretreatment column 21a, etc., is prevented and the purity of the N2 gas product can be maintained.
JP62233409A 1987-09-17 1987-09-17 Pressure-swing adsorption-type nitrogen production process Pending JPS6476904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233409A JPS6476904A (en) 1987-09-17 1987-09-17 Pressure-swing adsorption-type nitrogen production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233409A JPS6476904A (en) 1987-09-17 1987-09-17 Pressure-swing adsorption-type nitrogen production process

Publications (1)

Publication Number Publication Date
JPS6476904A true JPS6476904A (en) 1989-03-23

Family

ID=16954612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233409A Pending JPS6476904A (en) 1987-09-17 1987-09-17 Pressure-swing adsorption-type nitrogen production process

Country Status (1)

Country Link
JP (1) JPS6476904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003299931A (en) * 2002-04-05 2003-10-21 Sanyo Electric Industries Co Ltd Method for separating gas and device for separating gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003299931A (en) * 2002-04-05 2003-10-21 Sanyo Electric Industries Co Ltd Method for separating gas and device for separating gas

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