Invention Grant
US08372923B2 Process for improving the devolatilization of polymer slurry produced in a polymerization reactor
失效
改进在聚合反应器中产生的聚合物浆料脱挥发分的方法
- Patent Title: Process for improving the devolatilization of polymer slurry produced in a polymerization reactor
- Patent Title (中): 改进在聚合反应器中产生的聚合物浆料脱挥发分的方法
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Application No.: US12447781Application Date: 2007-10-26
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Publication No.: US08372923B2Publication Date: 2013-02-12
- Inventor: Lieven Van Looveren , Marc Moers , Mathias Wijffels
- Applicant: Lieven Van Looveren , Marc Moers , Mathias Wijffels
- Applicant Address: BE Seneffe (Feluy)
- Assignee: Total Petrochemicals Research Feluy
- Current Assignee: Total Petrochemicals Research Feluy
- Current Assignee Address: BE Seneffe (Feluy)
- Priority: EP06123169 20061030
- International Application: PCT/EP2007/061547 WO 20071026
- International Announcement: WO2008/052943 WO 20080508
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F210/00 ; B01J19/18
Abstract:
The present invention relates to a process for improving the devolatilization of polymer slurry produced in an olefin polymerization reactor. The process is characterized in that it involves an adjustment of the temperature of the interior surface of the flash line for periodically transferring polymer slurry from the polymerization reactor to a downstream processing unit. In particular, in accordance with the present process, the temperature of the interior surface of the flash line is adjusted to a temperature which is equal to or higher than the softening temperature of the polymer passing through said flash line whereby said temperature is higher in a first half of the length of the flash line than in the remaining length of the flash line.
Public/Granted literature
- US20110098421A1 Process for Improving the Devolatilization of Polymer Slurry Produced in a Polymerization Reactor Public/Granted day:2011-04-28
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