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公开(公告)号：US07740808B2
公开(公告)日：2010-06-22
申请号：US11578138
申请日：2005-04-29
CPC分类号： B01J19/1837 , B01J8/0015 , B01J2208/00274 , B01J2208/003 , B01J2208/00761 , B01J2219/00006 , C08F6/003 , C08F6/20 , C08F10/02 , C08F110/02 , C08F210/16 , C08L23/04 , C08F2/14 , C08F210/08
摘要： The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers. In particular, the present invention concerns a process and an apparatus for continuous polymerisation olefin monomers like ethylene and other monomers, wherein an olefin monomer is polymerised in slurry phase in an inert hydrocarbon diluent in at least one loop reactor. According to the invention, a polymer slurry is continuously withdrawn from the loop reactor and concentrated. The concentrated slurry is conducted to a flash unit in order to remove the remaining fluid phase, and gas obtained is compressed in a flash gas compressor before it is being fed to a distillation section. By means of the present invention it is possible reduce the size of the flash gas compressor and the capacity of the distillation sections. This significantly reduces investment cost for a continuously operated polymerization apparatus.
摘要翻译： 本发明涉及烯烃单体连续聚合的方法和设备。 特别地，本发明涉及用于连续聚合烯烃单体如乙烯和其它单体的方法和设备，其中烯烃单体在淤浆相中在惰性烃稀释剂中在至少一个环管反应器中聚合。 根据本发明，聚合物浆液从环流反应器中连续取出并浓缩。 将浓缩的浆料送入闪蒸装置以除去剩余的流体相，所获得的气体在进料到蒸馏段之前在闪蒸气体压缩机中被压缩。 通过本发明，可以减小闪蒸气体压缩机的尺寸和蒸馏段的容量。 这显着降低了连续操作的聚合装置的投资成本。
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公开(公告)号：US07115687B2
公开(公告)日：2006-10-03
申请号：US10532607
申请日：2003-10-27
IPC分类号： C08F2/34
CPC分类号： B01J19/2435 , B01J8/0055 , B01J8/20 , B01J8/26 , B01J2219/00006 , B01J2219/0004 , B01J2219/00254 , C08F10/00 , C08F110/02 , C08F210/16 , C08F2/01 , C08F2/001 , C08F2/34 , C08F2/14 , C08F2500/12 , C08F210/08
摘要： The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers in a cascade of polymerisation reactors. According to the process, an olefin monomer is polymerised first in slurry phase in an inert hydrocarbon diluent in at least one loop reactor and then, subsequently, in gas phase in at least one gas phase reactor. According to the invention, a polymer slurry is continuously withdrawn from the loop reactor and optionally concentrated. The concentrated slurry is conducted to a high pressure flash unit in order to remove the remaining fluid phase, and fed to the gas phase reactor. With the process described in this invention, it is possible to produce bimodal polyethylene with good properties. The operation of the process is stable because of the truly continuous operation.
摘要翻译： 本发明涉及在聚合反应器级联中烯烃单体的连续聚合的方法和设备。 根据该方法，烯烃单体首先在淤浆相中在至少一个环管反应器中的惰性烃稀释剂中聚合，然后在至少一个气相反应器中以气相聚合。 根据本发明，聚合物浆料从环流反应器中连续取出并任选地浓缩。 将浓缩的浆液送入高压闪蒸装置，以除去剩余的流体相，并将其送入气相反应器。 通过本发明所述的方法，可以制备具有良好性能的双峰聚乙烯。 由于真正的连续运行，该过程的运行是稳定的。
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公开(公告)号：US20060052552A1
公开(公告)日：2006-03-09
申请号：US10532607
申请日：2003-10-27
CPC分类号： B01J19/2435 , B01J8/0055 , B01J8/20 , B01J8/26 , B01J2219/00006 , B01J2219/0004 , B01J2219/00254 , C08F10/00 , C08F110/02 , C08F210/16 , C08F2/01 , C08F2/001 , C08F2/34 , C08F2/14 , C08F2500/12 , C08F210/08
摘要： The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers in a cascade of polymerisation reactors. According to the process, an olefin monomer is polymerised first in slurry phase in an inert hydrocarbon diluent in at least one loop reactor and then, subsequently, in gas phase in at least one gas phase reactor. According to the invention, a polymer slurry is continuously withdrawn from the loop reactor and optionally concentrated. The concentrated slurry is conducted to a high pressure flash unit in order to remove the remaining fluid phase, and fed to the gas phase reactor. With the process described in this invention, it is possible to produce bimodal polyethylene with good properties. The operation of the process is stable because of the truly continuous operation.
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公开(公告)号：US20080039597A1
公开(公告)日：2008-02-14
申请号：US11578138
申请日：2005-04-29
CPC分类号： B01J19/1837 , B01J8/0015 , B01J2208/00274 , B01J2208/003 , B01J2208/00761 , B01J2219/00006 , C08F6/003 , C08F6/20 , C08F10/02 , C08F110/02 , C08F210/16 , C08L23/04 , C08F2/14 , C08F210/08
摘要： The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers. In particular, the present invention concerns a process and an apparatus for continuous polymerisation olefin monomers like ethylene and other monomers, wherein an olefin monomer is polymerised in slurry phase in an inert hydrocarbon diluent in at least one loop reactor. According to the invention, a polymer slurry is continuously withdrawn from the loop reactor and concentrated. The concentrated slurry is conducted to a flash unit in order to remove the remaining fluid phase, and gas obtained is compressed in a flash gas compressor before it is being fed to a distillation section. By means of the present invention it is possible reduce the size of the flash gas compressor and the capacity of the distillation sections. This significantly reduces investment cost for a continuously operated polymerization apparatus.
摘要翻译： 本发明涉及烯烃单体连续聚合的方法和设备。 特别地，本发明涉及用于连续聚合烯烃单体如乙烯和其它单体的方法和设备，其中烯烃单体在淤浆相中在惰性烃稀释剂中在至少一个环管反应器中聚合。 根据本发明，聚合物浆液从环流反应器中连续取出并浓缩。 将浓缩的浆料送入闪蒸装置以除去剩余的流体相，所获得的气体在进料到蒸馏段之前在闪蒸气体压缩机中被压缩。 通过本发明，可以减小闪蒸气体压缩机的尺寸和蒸馏段的容量。 这显着降低了连续操作的聚合装置的投资成本。
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