Production of propylene employing dimerising ethylene to 1-butene, hydroisomerization to 2-butene and metathesis by ethylene
    6.
    发明授权
    Production of propylene employing dimerising ethylene to 1-butene, hydroisomerization to 2-butene and metathesis by ethylene 有权
    使用二烯乙烯至1-丁烯的丙烯生产,将乙烯加氢异构化成2-丁烯和复分解

    公开(公告)号:US07868216B2

    公开(公告)日:2011-01-11

    申请号:US11315096

    申请日:2005-12-23

    CPC classification number: C07C11/06

    Abstract: A process for producing high purity propylene comprises: a step for dimerizing ethylene to 1-butene; a step for hydroisomerizing 1-butene to 2-butenes; and a step for metathesis of 2-butenes by ethylene. Advantageously, the ethylene used to produce the 1-butene and ethylene for metathesis derive from a steam cracking unit. To increase propylene production, the process can use a steam cracking or FCC C4cut as an additional butene source.

    Abstract translation: 一种生产高纯度丙烯的方法包括:将乙烯二聚至1-丁烯的步骤; 将1-丁烯加氢异构化成2-丁烯的步骤; 以及乙烯复配2-丁烯的步骤。 有利地,用于制备用于复分解的1-丁烯和乙烯的乙烯来自蒸汽裂解装置。 为了增加丙烯生产,该方法可以使用蒸汽裂化或FCC C4cut作为附加的丁烯源。

    Facility for the production of isobutene and propylene from hydrocarbon cuts containing four carbon atoms
    7.
    发明授权
    Facility for the production of isobutene and propylene from hydrocarbon cuts containing four carbon atoms 有权
    从含有四个碳原子的烃馏分中生产异丁烯和丙烯的设备

    公开(公告)号:US06358482B1

    公开(公告)日:2002-03-19

    申请号:US09520241

    申请日:2000-03-07

    Abstract: A facility for converting an olefinic C4 cut to isobutene and propylene comprising, in succession: 1) a zone 1 for selective hydrogenation of olefins in the olefinic C4 cut with simultaneous isomerisation of butene-1 to butene-2, said zone comprising at least one device for introducing the olefinic C4 cut to be converted, at least one device for removing an effluent, and at least one device for introducing hydrogen, said zone also comprising at least one catalyst bed; 2) a separation zone, comprising at least one device for introducing the effluent from zone 1 directly connected to said at least one device for removing an effluent, at least one device for removing a first fraction comprising isobutene and butene-1, and at least one device for removing a second fraction comprising butene-2 and n-butane, wherein the second fraction comprises at most 1% by weight of isobutene and at most 1% by weight of butene-1; 3) a metathesis zone for metathesis of butene-2 with ethylene to produce propylene, wherein the metathesis zone comprises at least one device for introducing butene-2 from the second fraction of the separation zone, at least one device for introducing ethylene, and at least one device for removing propylene, and at least one catalyst comprising at least one rhenium oxide deposited on a support.

    Abstract translation: 将烯烃C4馏分转化为异丁烯和丙烯的设备包括:1)用于烯烃C4馏分中的烯烃的选择性氢化的区1,其中丁烯-1同时异构化为丁烯-2,所述区包括至少一个 用于引入要转化的烯烃C4馏分的装置,用于除去流出物的至少一个装置和至少一个用于引入氢气的装置,所述区域还包括至少一个催化剂床; 2)分离区,包括至少一个装置 用于将来自直接连接到所述至少一个装置的区域1的流出物引入以除去流出物,用于除去包含异丁烯和丁烯-1的第一馏分的至少一个装置和用于除去包含丁烯-2的第二馏分的至少一个装置 和正丁烷,其中第二部分包含至多1重量%的异丁烯和至多1重量%的丁烯-1; 3)用于将乙烯复分解为乙烯以产生丙烯的复分解区 其中所述复分解区包含用于从所述分离区的第二级分引入丁烯-2的至少一种装置,用于引入乙烯的至少一种装置和用于除去丙烯的至少一种装置,以及至少包含至少一种催化剂 沉积在载体上的一种氧化铼氧化物。

    Process for the separation of alpha-olefins by distillation of an
effluent comprising ethylene and 1-butene
    8.
    发明授权
    Process for the separation of alpha-olefins by distillation of an effluent comprising ethylene and 1-butene 失效
    通过蒸馏出包含乙烯和1-丁烯的流出物来分离α-烯烃的方法

    公开(公告)号:US5853551A

    公开(公告)日:1998-12-29

    申请号:US720384

    申请日:1996-07-23

    CPC classification number: C07C7/05

    Abstract: The invention concerns a process for the separation of a mixture comprising ethylene, 1-butene, alpha-olefins containing at least 6 carbon atoms per molecule and possibly heavier hydrocarbon products, the ethylene content of the mixture being in the range 30% to 70% by weight, in which separation is effected in a distillation zone to obtain an overhead fraction comprising the major portion of the ethylene present in the mixture and between 0% and 100% by weight of the 1-butene present in the mixture, the process being characterized in that the zone is also supplied with supplemental 1-butene in an amount in the range 1 to 40 times the quantity (by weight) of 1-butene present in the mixture. In a preferred implementation of the process of the invention, the mixture originates form a homogenous liquid phase ethylene oligomerisation zone.

    Abstract translation: 本发明涉及一种分离包含乙烯,1-丁烯,每分子含有至少6个碳原子的α-烯烃和可能较重烃产物的混合物的混合物的方法,该混合物的乙烯含量在30%至70%的范围内, ,其中在蒸馏区中进行分离以获得包含混合物中存在的乙烯的主要部分和0重量%至100重量%的混合物中存在的1-丁烯的塔顶馏分,该方法为 其特征在于,该区域还提供了在混合物中存在的1-丁烯的量(重量)的1至40倍的量的补充的1-丁烯。 在本发明方法的优选实施方案中,混合物起始形成均相液相乙烯齐聚区。

    Production of propylene employing dimerising ethylene to 1-butene, hydroisomerization to 2-butene and metathesis by ethylene
    9.
    发明申请
    Production of propylene employing dimerising ethylene to 1-butene, hydroisomerization to 2-butene and metathesis by ethylene 有权
    使用二烯乙烯至1-丁烯的丙烯生产,将乙烯加氢异构化成2-丁烯和复分解

    公开(公告)号:US20060161033A1

    公开(公告)日:2006-07-20

    申请号:US11315096

    申请日:2005-12-23

    CPC classification number: C07C11/06

    Abstract: A process for producing high purity propylene comprises: a step for dimerizing ethylene to 1-butene; a step for hydroisomerizing 1-butene to 2-butenes; and a step for metathesis of 2-butenes by ethylene. Advantageously, the ethylene used to produce the 1-butene and ethylene for metathesis derive from a steam cracking unit. To increase propylene production, the process can use a steam cracking or FCC C4 cut as an additional butene source.

    Abstract translation: 一种生产高纯度丙烯的方法包括:将乙烯二聚至1-丁烯的步骤; 将1-丁烯加氢异构化成2-丁烯的步骤; 以及乙烯复配2-丁烯的步骤。 有利地,用于制备用于复分解的1-丁烯和乙烯的乙烯来自蒸汽裂解装置。 为了增加丙烯生产,该方法可以使用蒸汽裂化或FCC C4馏分作为附加的丁烯源。

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