发明授权
- 专利标题: Process for the production of nitrogen by cryogenic distillation of atmospheric air
- 专利标题(中): 通过大气空气的低温蒸馏生产氮气的方法
-
申请号: US133292申请日: 1993-10-08
-
公开(公告)号: US5373699A公开(公告)日: 1994-12-20
- 发明人: Sophie Gastinne , Francois Venet , Bao Ha , Naohiko Yamashita
- 申请人: Sophie Gastinne , Francois Venet , Bao Ha , Naohiko Yamashita
- 申请人地址: FRX Paris Cedex CAX Montreal JPX Tokyo
- 专利权人: L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes George Claude,Liquid Air Engineering Corporation,Teisan, K.K.
- 当前专利权人: L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes George Claude,Liquid Air Engineering Corporation,Teisan, K.K.
- 当前专利权人地址: FRX Paris Cedex CAX Montreal JPX Tokyo
- 优先权: FRX8911009 19890818
- 主分类号: F25J3/04
- IPC分类号: F25J3/04 ; F25J3/02
摘要:
An air separation process wherein a nitrogen enriched fraction is withdrawn from the distillation column, a portion of which is compressed and recycled through the lowest positioned reboiler in the column and directed to an upper portion of the column as reflux.
公开/授权文献
信息查询