发明授权
- 专利标题: Recovery of butanol from a mixture of butanol, water, and an organic extractant
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申请号: US13611087申请日: 2012-09-12
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公开(公告)号: US08569552B2公开(公告)日: 2013-10-29
- 发明人: Michael Charles Grady , William D Parten , Bruce M Vrana , Yihui Tom Xu , Joseph J Zaher
- 申请人: Michael Charles Grady , William D Parten , Bruce M Vrana , Yihui Tom Xu , Joseph J Zaher
- 申请人地址: US DE Wilmington
- 专利权人: Butamax Advanced Biofuels LLC
- 当前专利权人: Butamax Advanced Biofuels LLC
- 当前专利权人地址: US DE Wilmington
- 代理商 Christine M. Lhulier
- 主分类号: C07C29/80
- IPC分类号: C07C29/80 ; C07C29/84
摘要:
A process for recovering butanol from a mixture comprising a water-immiscible organic extractant, water, butanol, and optionally a non-condensable gas, is provided. The butanol is selected from 1-butanol, 2-butanol, isobutanol, and mixtures thereof. An overhead stream from a first distillation column is condensed to recover a mixed condensate. An entrainer is added to at least one appropriate process stream or vessel such that the mixed condensate comprises sufficient entrainer to provide phase separation of the organic and the aqueous phases to provide for recovery of the butanol.
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