Invention Grant
- Patent Title: Solution polymerization process with improved energy utilization
- Patent Title (中): 溶液聚合过程提高了能源利用率
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Application No.: US15021796Application Date: 2014-09-08
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Publication No.: US09574025B2Publication Date: 2017-02-21
- Inventor: Terri A. Price , Fazle Sibtain , Eric Cheluget
- Applicant: NOVA Chemicals (International) S.A.
- Applicant Address: CH Fribourg
- Assignee: NOVA Chemicals (International) S.A.
- Current Assignee: NOVA Chemicals (International) S.A.
- Current Assignee Address: CH Fribourg
- Agent Julie L. Heinrich
- Priority: CA2827839 20130919
- International Application: PCT/IB2014/064323 WO 20140908
- International Announcement: WO2015/040522 WO 20150326
- Main IPC: C08F10/02
- IPC: C08F10/02 ; C08F2/06 ; C08F6/10 ; C08F6/12 ; C08F6/00 ; C08F6/02 ; C08J11/02 ; B01D3/00

Abstract:
A solution polymerization process that consumes less energy comprising: injecting feeds into one or more reactors to form a polyethylene in a single liquid phase, or optionally two liquid phases; deactivating the single or dual liquid phase; a first V/L separator separates the deactivated phase into a first bottom stream and a first overhead stream; the first overhead stream passes to a distillation column and the first bottom stream enters a second V/L separator, forming a second overhead stream and a second bottom stream; the second bottom stream enters a third V/L separator, forming a third overhead stream and a third bottom stream; the third bottom stream passes to polymer recovery; the second and third overhead streams are combined, condensed and purified, forming a purified solvent that is recycled to said reactors.
Public/Granted literature
- US20160229930A1 SOLUTION POLYMERIZATION PROCESS WITH IMPROVED ENERGY UTILIZATION Public/Granted day:2016-08-11
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