Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons
    53.
    发明授权
    Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons 有权
    通过高度不饱和烃的提取氢化制备单烯烃的方法和系统

    公开(公告)号:US07141709B2

    公开(公告)日:2006-11-28

    申请号:US10712686

    申请日:2003-11-13

    IPC分类号: C07C5/03

    CPC分类号: C07C5/09 C07C5/05 C07C7/10

    摘要: In some embodiments, methods of producing monoolefins include contacting an olefin stream with a polar solvent to extract a highly unsaturated hydrocarbon from the olefin stream, followed by contacting the polar solvent with a hydrogenation catalyst in the presence of hydrogen at conditions effective to hydrogenate the highly unsaturated hydrocarbon to a monoolefin. The monoolefin then desorbs from the polar solvent and enters the purified olefin stream, allowing the polar solvent to be recycled. In other embodiments, monoolefin production systems include an extraction-hydrogenation zone for performing the extraction and hydrogenating steps in situ. In alternative embodiments, the hydrogenation zone is disposed downstream from the extraction zone.

    摘要翻译: 在一些实施方案中,制备单烯烃的方法包括使烯烃物流与极性溶剂接触以从烯烃物流中提取高度不饱和的烃,然后在氢气存在下使极性溶剂与氢化催化剂接触,以有效地氢化高度 不饱和烃与单烯烃。 然后单烯烃从极性溶剂中解吸并进入纯化的烯烃流,使极性溶剂再循环。 在其它实施方案中,单烯烃生产系统包括用于原位进行萃取和氢化步骤的萃取氢化区。 在替代实施方案中,氢化区位于提取区的下游。

    Hydrocarbon upgrading process
    56.
    发明授权
    Hydrocarbon upgrading process 有权
    碳氢化合物升级过程

    公开(公告)号:US06737557B2

    公开(公告)日:2004-05-18

    申请号:US09801558

    申请日:2001-03-08

    IPC分类号: C07C709

    摘要: A process for recovering DCPD from a hydrocarbon feedstock comprising introducing the hydrocarbon feedstock to a first column, recovering an overhead stream from the first column comprising C9− hydrocarbons, recovering a bottom stream from the first column comprising C10+ hydrocarbons, feeding the bottom stream from the first column to a second column, recovering an overhead stream from the second column comprising DCPD, and recovering a bottom stream from the second column comprising fuel oil, wherein the two columns are sized and operated at defined conditions such as pressures, temperatures, reflux rates, and reboil rates.

    摘要翻译: 一种从烃原料回收DCPD的方法,包括将烃原料引入第一塔,从包含C 9烃的第一塔回收塔顶物流,从包含C10 +烃的第一塔回收底部物流,将来自 从第一塔到第二塔,从包括DCPD的第二塔回收塔顶流,以及从包括燃料油的第二塔回收底部流,其中两个塔的尺寸和操作在限定的条件下,例如压力,温度,回流速率 ,并重新燃起利率。

    Hydrocarbon hydrogenation catalyst and process
    58.
    发明授权
    Hydrocarbon hydrogenation catalyst and process 有权
    烃氢化催化剂和工艺

    公开(公告)号:US06417136B2

    公开(公告)日:2002-07-09

    申请号:US09398664

    申请日:1999-09-17

    IPC分类号: B01J2358

    摘要: A catalyst composition is provided which can be used for hydrogenating a highly unsaturated hydrocarbon such as an alkyne or a diolefin. The catalyst composition contains palladium, a catalyst component of either silver or an alkali metal compound, or both silver and an alkali metal compound, and a metal aluminate catalyst support. Such metal aluminate catalyst support is prepared by a process of incorporating alumina with a metal component, preferably impregnating alumina with a melted metal component, to thereby provide a metal-incorporated alumina followed by drying and high temperature calcining to thereby provide a metal aluminate catalyst support. The catalyst composition disclosed can be used for hydrogenating a highly unsaturated hydrocarbon to a less unsaturated hydrocarbon. The process involves contacting a highly unsaturated hydrocarbon with a catalyst composition in the presence of hydrogen under a hydrogenation condition sufficient to effect a hydrogenation of the highly unsaturated hydrocarbon.

    摘要翻译: 提供了可用于氢化高度不饱和烃如炔烃或二烯烃的催化剂组合物。 催化剂组合物包含钯,银或碱金属化合物的催化剂组分,或银和碱金属化合物两者以及金属铝酸盐催化剂载体。 这种金属铝酸盐催化剂载体是通过将氧化铝与金属组分掺入的方法制备的,优选用熔融的金属组分浸渍氧化铝,从而提供掺入金属的氧化铝,随后进行干燥和高温煅烧,从而提供金属铝酸盐催化剂载体 。 所公开的催化剂组合物可用于将高度不饱和烃氢化为较不饱和的烃。 该方法包括在氢气存在下使氢不饱和烃与催化剂组合物接触,氢化条件足以进行高度不饱和烃的氢化。