Process for recycling product streams separated from a hydrocarbon-containing feed stream.
    2.
    发明公开
    Process for recycling product streams separated from a hydrocarbon-containing feed stream. 审中-公开
    一种用于回收已经从含烃进料流中分离的产物流的方法

    公开(公告)号:EP2295474A1

    公开(公告)日:2011-03-16

    申请号:EP09170106.0

    申请日:2009-09-11

    IPC分类号: C08F6/04 C07C7/04 B01D3/14

    摘要: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H 2 , N 2 , O 2 , CO, CO 2 , and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H 2 , N 2 , O 2 , CO and CO 2 , The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.

    摘要翻译: 本发明涉及一种用于回收产品流thathave是来自含烃进料流中分离包含烯烃单体,烯烃共聚单体,烃稀释剂和组件:如H 2,N 2,O 2,CO,CO 2 和甲醛。 在本处理的含烃进料流被分离成雅舞蹈a)第一侧流包含烃稀释剂和烯烃单体; b)第二侧流基本上无氢和包含烃稀释剂和烯烃单体,c)一种塔底物流,其包括塔顶蒸气流的基本上不含烯烃的烃稀释剂,以及d)包含烯烃单体,烃稀释剂和组件:如 甲醛,H 2,N 2,O 2,CO和CO 2,本方法包括回收进一步表示第一和第二侧,所述用于制备双峰聚烯烃的聚合过程流。

    Process for optimizing the separation of a hydrocarbon-containing feed stream.
    3.
    发明公开

    公开(公告)号:EP2016985A1

    公开(公告)日:2009-01-21

    申请号:EP07112521.5

    申请日:2007-07-16

    发明人: Mignon, Denis

    IPC分类号: B01D3/42

    摘要: The present invention relates to a process for optimizing the separation by distillation of a hydrocarbon-containing feed stream comprising olefin monomer, co-monomer and hydrocarbon diluent. A preferred component stream separated comprises ethylene, 1-hexene and isobutane.
    A first distillation column (2) realizes a rough cut between a mixture of isobutane, hexene and the heavies (5). The heavy bottom product is treated in a second distillation column (4) and separated into isobutane vapor (6), a purified liquid hexene stream (7) and the heavy components (8). The remaining monomer, isobutane, which exits from the top (9) of the first distillation column (2), is sent to a third distillation column (3) to be sepatated into isobutane as liquid bottom (10), light components, ethylene and residual isobutane as a vapor stream (12) and remaining isobutane exits as a liquid side stream (11).
    The distillation system comprises controller means such as ratio controller (not shown), for adapting the ratio of the bottom stream flow removed from the third distillation zone to the overhead stream flow introduced in the third distillation zone.

    摘要翻译: 本发明涉及通过蒸馏来优化包含烯烃单体,共聚单体和烃稀释剂的含烃进料流的分离方法。 分离的优选组分流包括乙烯,1-己烯和异丁烷。 第一蒸馏塔(2)实现异丁烷,己烯和重质混合物之间的粗切割(5)。 将重的底部产物在第二蒸馏塔(4)中处理并分离成异丁烷蒸气(6),纯化的液体己烯流(7)和重组分(8)。 将从第一蒸馏塔(2)的顶部(9)排出的剩余单体异丁烷送入第三蒸馏塔(3),以分离成异丁烷作为液体底部(10),轻组分,乙烯和 剩余的异丁烷作为蒸汽流(12)和剩余的异丁烷作为液体流(11)离开。 蒸馏系统包括诸如比例控制器(未示出)的控制器装置,用于使从第三蒸馏区移除的塔底物流的比例与引入第三蒸馏区的塔顶馏出物流的比例相适应。