发明申请
- 专利标题: SOLUTION POLYMERIZATION PROCESSES WITH REDUCED ENERGY USAGE
- 专利标题(中): 解决方案采用降低能源使用的聚合方法
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申请号: US14771355申请日: 2014-03-04
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公开(公告)号: US20160002370A1公开(公告)日: 2016-01-07
- 发明人: Terri A Price , Fazle Sibtain , Eric Cheluget
- 申请人: Fazle SIBTAIN , Eric CHELUGET , NOVA Chemicals (International) S.A.
- 申请人地址: CH Fribourg
- 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: CH Fribourg
- 优先权: CA2809718 20130315
- 国际申请: PCT/CA2014/000160 WO 20140304
- 主分类号: C08F10/02
- IPC分类号: C08F10/02
摘要:
An improved solution polymerization process wherein energy consumption is reduced comprising: i) injecting ethylene, solvent, catalyst, α-olefins and hydrogen into at least one reactor to produce a polyethylene in a single liquid phase solution; ii) deactivating the single liquid phase solution; iii) passing the deactivated solution into a vapor/liquid separator forming a bottom stream of polyethylene rich solvent and a gaseous overhead stream; iv) passing not more than 40% of the gaseous overhead stream to distillation; v) condensing the remainder of the gaseous overhead stream to form a recycle stream, while generating low pressure steam; vi) passing the recycle stream through a means for oligomer removal; vii) passing the recycle stream through a lights separator; viii) passing the recycle stream through a purification step; ix) collecting the recycle stream in a recycle drum, passing the recycle stream through a pump and injecting a high pressure recycle stream into said reactors.
公开/授权文献
- US09428597B2 Solution polymerization processes with reduced energy usage 公开/授权日:2016-08-30
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