- 专利标题: A SOLUTION POLYMERIZATION PROCESS WITH IMPROVED ENERGY UTILIZATION
- 专利标题(中): 松香加工机
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申请号: EP14776731.3申请日: 2014-09-08
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公开(公告)号: EP3055336A1公开(公告)日: 2016-08-17
- 发明人: PRICE, Terri , SIBTAIN, Fazle , CHELUGET, Eric
- 申请人: Nova Chemicals (International) S.A.
- 申请人地址: Avenue de la Gare 14 1700 Fribourg CH
- 专利权人: Nova Chemicals (International) S.A.
- 当前专利权人: Nova Chemicals (International) S.A.
- 当前专利权人地址: Avenue de la Gare 14 1700 Fribourg CH
- 代理机构: Watson, Robert James
- 优先权: CA2827839 20130919
- 国际公布: WO2015040522 20150326
- 主分类号: C08F2/06
- IPC分类号: C08F2/06
摘要:
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 stream are combined, condensed and purified, forming a purified solvent that is recycled to said reactors.
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