Invention Grant
- Patent Title: Aromatics-recovery process
- Patent Title (中): 芳香回收过程
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Application No.: US13170691Application Date: 2011-06-28
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Publication No.: US09126126B2Publication Date: 2015-09-08
- Inventor: Deepak Bisht , Anup Dhaigude , Sandeep Gupta
- Applicant: Deepak Bisht , Anup Dhaigude , Sandeep Gupta
- Applicant Address: US IL Des Plaines
- Assignee: UOP LLC
- Current Assignee: UOP LLC
- Current Assignee Address: US IL Des Plaines
- Main IPC: B01D3/10
- IPC: B01D3/10 ; B01D5/00 ; B01D11/00 ; B01D17/028 ; B01D17/02

Abstract:
A process for recovery of sulfolane used in a solvent-extraction or extractive-distillation process includes introducing a mixture into a solvent-recovery column having a heat source connected to a bottom portion of the column and removing a lean solvent stream, substantially free of hydrocarbons, from the bottom of the column, removing a polar-hydrocarbon-rich overhead stream from the top section of the column and maintaining the needed vacuum conditions using a liquid-jet ejector, preferably using water as the liquid.
Public/Granted literature
- US20130001065A1 AROMATICS-RECOVERY PROCESS Public/Granted day:2013-01-03
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