Monomer/Diluent Recovery
    3.
    发明申请
    Monomer/Diluent Recovery 有权
    单体/稀释剂回收

    公开(公告)号:US20150203601A1

    公开(公告)日:2015-07-23

    申请号:US14159261

    申请日:2014-01-20

    IPC分类号: C08F2/01

    摘要: The disclosure includes a polymerization process and an olefin polymerization system. A polymerization product is produced, a vapor phase is recovered from the polymerization product, the vapor phase is fractionated in a first column to yield a fraction stream, and the fraction stream is fractionated in a second column. A first stream of the second column, which comprises a diluent, can be recycled to a first polymerization reactor. A second stream of the second column, which comprises olefin monomer, diluent, and hydrogen, can be recycled to a second polymerization reactor. Comonomer may be recycled from the first column to the first polymerization reactor, the second polymerization reactor, or both.

    摘要翻译: 本公开内容包括聚合方法和烯烃聚合体系。 产生聚合产物,从聚合产物中回收气相,在第一塔中分馏蒸气相以产生馏分流,并将馏分流在第二塔中分馏。 包含稀释剂的第二塔的第一流可以再循环到第一聚合反应器中。 包含烯烃单体,稀释剂和氢的第二塔的第二流可以再循环到第二聚合反应器中。 共聚单体可以从第一塔再循环到第一聚合反应器,第二聚合反应器或两者。

    Monomer/diluent recovery
    6.
    发明授权
    Monomer/diluent recovery 有权
    单体/稀释液回收

    公开(公告)号:US09096694B1

    公开(公告)日:2015-08-04

    申请号:US14159261

    申请日:2014-01-20

    摘要: The disclosure includes a polymerization process and an olefin polymerization system. A polymerization product is produced, a vapor phase is recovered from the polymerization product, the vapor phase is fractionated in a first column to yield a fraction stream, and the fraction stream is fractionated in a second column. A first stream of the second column, which comprises a diluent, can be recycled to a first polymerization reactor. A second stream of the second column, which comprises olefin monomer, diluent, and hydrogen, can be recycled to a second polymerization reactor. Comonomer may be recycled from the first column to the first polymerization reactor, the second polymerization reactor, or both.

    摘要翻译: 本公开内容包括聚合方法和烯烃聚合体系。 产生聚合产物,从聚合产物中回收气相,在第一塔中分馏蒸气相以产生馏分流,并将馏分流在第二塔中分馏。 包含稀释剂的第二塔的第一流可以再循环到第一聚合反应器中。 包含烯烃单体,稀释剂和氢的第二塔的第二流可以再循环到第二聚合反应器中。 共聚单体可以从第一塔再循环到第一聚合反应器,第二聚合反应器或两者。

    REACTOR JACKET DESIGN
    8.
    发明申请

    公开(公告)号:US20200346179A1

    公开(公告)日:2020-11-05

    申请号:US16402678

    申请日:2019-05-03

    摘要: Reactor systems, reactor coolant systems, and associated processes for polymerizing polyolefins are described. The reactor systems generally include a reactor pipe and a coolant system, in which the coolant system includes a jacket pipe surrounding at least a portion of the reactor pipe to form an annulus therebetween, at least one spacer coupling the jacket to the reactor pipe, and a coolant which flows through the annulus to remove heat from the reactor pipe. At least one of the external surface of the reactor pipe, the internal surface of the jacket, and at least one spacer, are independently modified, for example by polishing, coating, or reshaping, to reduce the fluid resistance of the coolant flow through the annulus.