发明授权
- 专利标题: Membrane-augmented distillation with pressure change to separate solvents from water
- 专利标题(中): 增压蒸馏,压力变化,以将溶剂与水分离
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申请号: US12229790申请日: 2008-08-27
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公开(公告)号: US08128787B2公开(公告)日: 2012-03-06
- 发明人: Nicholas P. Wynn , Yu Huang , Masakatsu Urairi , Richard W Baker
- 申请人: Nicholas P. Wynn , Yu Huang , Masakatsu Urairi , Richard W Baker
- 申请人地址: JP Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Osaka
- 代理商 J. Farrant; K. Bean
- 主分类号: B01D3/00
- IPC分类号: B01D3/00 ; C07C45/82 ; C07C29/80 ; C07C51/44
摘要:
Processes for removing water from organic solvents, such as ethanol. The processes include distillation in two columns operated at sequentially higher pressure, followed by treatment of the overhead vapor by one or two membrane separation steps.
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