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    Process for increasing the yield of an isomerization zone
    4.
    发明授权
    Process for increasing the yield of an isomerization zone 有权
    提高异构化区产率的方法

    公开(公告)号：US09302958B2

    公开(公告)日：2016-04-05

    申请号：US14267745

    申请日：2014-05-01

    Applicant: UOP LLC

    Inventor： Mark P. Lapinski

    IPC: C07C5/27 ,  C07C6/08 ,  C07C7/00

    CPC classification number: C07C7/005 ,  C07C4/06 ,  C07C5/27 ,  C07C5/2754 ,  C07C6/123 ,  C07C7/04 ,  C07C7/13 ,  C07C2521/04 ,  C07C2523/42 ,  C10G45/62 ,  C10G2300/1044 ,  C10G2300/1081 ,  C07C9/16 ,  C07C9/18 ,  C07C9/12 ,  C07C9/08 ,  C07C9/10 ,  C07C9/14

    Abstract: A process for increasing a yield of an isomerization zone by removing at least a portion of the C6 cyclic hydrocarbons from a stream prior to it being passed into the isomerization zone. Additionally, disproportionation reaction selectivity is also increased, producing valuable C3 hydrocarbons and C4 hydrocarbons. Also, a higher ring opening conversion of C5 cyclic hydrocarbons is observed. The isomerization zone may have an average operating temperature of at least 176° C. and an outlet molar ratio of hydrogen to hydrocarbon feed in the isomerization zone is less than about 0.2.

    Abstract translation: 通过在流入异构化区之前从流中除去至少一部分C 6环烃来提高异构化区的产率的方法。 此外，歧化反应选择性也增加，产生有价值的C3烃和C4烃。 此外，观察到C5环烃的较高的开环转化率。 异构化区可具有至少176℃的平均操作温度，异构化区中氢与烃进料的出口摩尔比小于约0.2。

    PROCESS FOR ISOMERIZING A FEED STREAM INCLUDING ONE OR MORE C4-C6 HYDROCARBONS
    7.
    发明申请
    PROCESS FOR ISOMERIZING A FEED STREAM INCLUDING ONE OR MORE C4-C6 HYDROCARBONS 审中-公开
    含有一个或多个C4-C6烃的进料流的同位素方法

    公开(公告)号：US20140179974A1

    公开(公告)日：2014-06-26

    申请号：US14191049

    申请日：2014-02-26

    Applicant: UOP LLC

    Inventor： David J. Shecterle

    IPC: C07C5/27

    CPC classification number: C07C5/2754 ,  C10G45/62 ,  C10G2300/104 ,  C10G2300/305 ,  C10G2400/02

    Abstract: One exemplary embodiment can be a process for isomerizing a feed stream including one or more C4-C6 hydrocarbons. The process may include contacting the feed stream in an isomerization reaction zone with an isomerization catalyst at isomerization conditions to produce an isomerization zone effluent; passing at least a portion of the isomerization zone effluent to a stabilizer zone and recovering a stabilizer overhead stream, a bottom stream, and a stripper feed stream; passing the stripper feed stream to a stripping zone and separating the stripper feed stream into a stripper overhead stream and a stripper bottom stream; and recycling at least a portion of the stripper bottom stream to a deisopentanizer zone and passing a stream from the deisopentanizer zone to the isomerization reaction zone. Usually, the stabilizer overhead stream includes one or more C5− hydrocarbons, the bottom stream includes at least about 85%, by weight, one or more C6+ hydrocarbons, and a stripper feed stream including at least about 10%, by weight, one or more C5+ hydrocarbons. Often, a stripper overhead stream includes at least about 5%, by weight, one or more C4− hydrocarbons and a stripper bottom stream includes at least about 90%, by weight, one or more C5+ hydrocarbons.

    Abstract translation: 一个示例性实施方案可以是使包含一种或多种C 4 -C 6烃的进料流异构化的方法。 该方法可以包括使异构化反应区中的进料流与异构化催化剂在异构化条件下接触以产生异构化区流出物; 将至少一部分异构化区流出物通入稳定剂区并回收稳定剂塔顶流，底部流和汽提塔进料流; 将汽提器进料流通入汽提区，并将汽提塔进料流分离成脱气塔顶馏出物流和汽提塔塔底物流; 以及将至少一部分汽提塔底部料流再循环到去异戊烷化器区域，并将来自脱硫烷化器区域的物流传递到异构化反应区域。 通常，稳定剂塔顶流包括一种或多种C5-烃，底部流包含至少约85％（重量）的一种或多种C 6+烃，以及包含至少约10％（重量）的一种或多种 更多的C5 +碳氢化合物。 通常，汽提器塔顶馏出物包含至少约5％（重量）的一种或多种C 4 - 烃，并且汽提塔底部料流包含至少约90％（重量）的一种或多种C 5+烃。

    Methods of Isomerizing Xylenes with a Catalyst Reduced in the Presence of Hydrogen and a Base
    10.
    发明申请
    Methods of Isomerizing Xylenes with a Catalyst Reduced in the Presence of Hydrogen and a Base 有权
    在氢和碱存在下还原催化剂异构化二甲苯的方法

    公开(公告)号：US20110046428A1

    公开(公告)日：2011-02-24

    申请号：US12940291

    申请日：2010-11-05

    Applicant: Scott H. Brown ,  Tin Tack Peter Cheung

    Inventor： Scott H. Brown ,  Tin Tack Peter Cheung

    IPC: C07C5/27

    CPC classification number: C07C5/2724 ,  C07C5/2708 ,  C07C5/2754 ,  C07C7/14841 ,  C07C2529/40 ,  C07C2529/44 ,  C07C2529/70 ,  Y02P20/52 ,  Y10S585/906 ,  C07C15/08

    Abstract: A xylene isomerization process includes introducing gas comprising hydrogen and a base to a reaction zone in which a catalyst comprising a Group VIII metal and a zeolite support resides. In one embodiment, the base may be formed in situ within the reaction zone from nitrogen and hydrogen that are introduced to the reaction zone. In another embodiment, the base is introduced directly to the reaction zone. The conditions in the reaction zone are effective to reduce the catalyst. A stream comprising C8 aromatics, e.g., xylenes and ethylbenzene may then be fed to the reaction zone containing the reduced catalyst. The reaction zone may be operated at conditions effective to isomerize the xylenes and hydrodealkylate the ethylbenzene. The xylene loss during the isomerization of the xylenes is lowered as a result of using the catalyst reduced in the presence of the gas comprising a base and hydrogen.

    Abstract translation: 二甲苯异构化方法包括将包含氢和碱的气体引入到其中包含第VIII族金属和沸石载体的催化剂所在的反应区。 在一个实施方案中，碱可以在反应区内从引入到反应区的氮和氢原位形成。 在另一个实施方案中，将碱直接引入反应区。 反应区中的条件对减少催化剂是有效的。 然后可以将包含C8芳族化合物（例如二甲苯和乙苯）的料流进料至含有还原催化剂的反应区。 反应区可以在有效地异构化二甲苯和加氢脱烷基化乙苯的条件下操作。 二甲苯异构化过程中二甲苯损失降低，因为使用在包含碱和氢的气体存在下还原的催化剂。

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