发明授权
US5006137A Nitrogen generator with dual reboiler/condensers in the low pressure
distillation column
失效
在低压蒸馏塔中使用双重再沸器/冷凝器的氮气发生器
- 专利标题： Nitrogen generator with dual reboiler/condensers in the low pressure distillation column
- 专利标题（中）： 在低压蒸馏塔中使用双重再沸器/冷凝器的氮气发生器
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申请号： US491756申请日： 1990-03-09
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公开(公告)号： US5006137A公开(公告)日： 1991-04-09
- 发明人: Rakesh Agrawal , Donald W. Woodward
- 申请人： Rakesh Agrawal , Donald W. Woodward
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： F25J3/04
- IPC分类号： F25J3/04
摘要：
The present invention is a cryogenic process for the production of nitrogen by distilling air in a double column distillation system comprising a high pressure column and a low pressure column. The critical step of the invention is the condensation of a nitrogen stream in the top most reboiler/condenser located in the stripping section of the low pressure column to provide column reboil and the total condensation of a portion of the compressed feed air in the bottom most reboiler/condenser located in the bottom of the low pressure column.
公开/授权文献
- US4503702A Tapered container and method and apparatus for forming same 公开/授权日：1985-03-12
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