发明授权
- 专利标题： Cryogenic rectification system for producing low purity oxygen and high purity nitrogen
- 专利标题（中）： 用于生产低纯氧和高纯度氮的低温精馏系统
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申请号： US671053申请日： 1996-06-27
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公开(公告)号： US5678427A公开(公告)日： 1997-10-21
- 发明人: Dante Patrick Bonaquist , Susan Marie Sattan
- 申请人： Dante Patrick Bonaquist , Susan Marie Sattan
- 申请人地址： CT Danbury
- 专利权人： Praxair Technology, Inc.
- 当前专利权人： Praxair Technology, Inc.
- 当前专利权人地址： CT Danbury
- 主分类号： F25J3/04
- IPC分类号： F25J3/04
摘要：
A double column cryogenic rectification system for producing low purity oxygen and high purity nitrogen, preferably at elevated pressure, wherein nitrogen-rich vapor from the higher pressure column is turboexpanded and condensed against lower pressure column intermediate liquid prior to being passed into the lower pressure column.
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