Invention Application
- Patent Title: A METHOD OF RECOVERING OLEFINS IN A SOLUTION POLYMERISATION PROCESS
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Application No.: PCT/EP2018/082172Application Date: 2018-11-22
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Publication No.: WO2019110315A1Publication Date: 2019-06-13
- Inventor: AL-HAJ ALI, Mohammad , ERIKSSON, Erik , MATHIVANAN, Guhan , RÄSÄNEN, Jukka , SLEIJSTER, Henry , VIJAY, Sameer , ZITTING, Samuli
- Applicant: BOREALIS AG
- Applicant Address: Wagramer Strasse 17-19 1220 Vienna AT
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: Wagramer Strasse 17-19 1220 Vienna AT
- Agency: KADOR & PARTNER PARTG MBB
- Priority: EP17205098.1 20171204
- Main IPC: C08F2/06
- IPC: C08F2/06 ; C08F6/00
Abstract:
The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterised in that at least a part of the second overhead stream is withdrawn as a purge stream.
Information query