Invention Grant
- Patent Title: Method for producing nitrogen gas, method for separating gas and device for producing nitrogen gas
- Patent Title (中): 氮气生产方法，气体分离方法及氮气生产装置
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Application No.: US14356456Application Date: 2012-11-09
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Publication No.: US09359203B2Publication Date: 2016-06-07
- Inventor: Makiya Kokubu , Hidehisa Sakamoto
- Applicant: TAIYO NIPPON SANSO CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TAIYO NIPPON SANSO CORPORATION
- Current Assignee: TAIYO NIPPON SANSO CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2011-246604 20111110
- International Application: PCT/JP2012/079119 WO 20121109
- International Announcement: WO2013/069768 WO 20130516
- Main IPC: B01D53/04
- IPC: B01D53/04 ; C01B21/04 ; B01D53/047 ; B01D53/053
Abstract:
A method for producing nitrogen gas from a raw material gas using a PSA system, the method including using a second adsorbent, which is packed in an auxiliary adsorption tank provided in a line connecting two main adsorption tanks packed with a first adsorbent, to reduce the oxygen concentration within a recovered gas discharged from the main adsorption tank performing a depressurization equalization step, and then introducing the gas into the main adsorption tank performing a pressurization equalization step.
Public/Granted literature
- US20140326139A1 METHOD FOR PRODUCING NITROGEN GAS, METHOD FOR SEPARATING GAS AND DEVICE FOR PRODUCING NITROGEN GAS Public/Granted day:2014-11-06
Information query
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