METHOD FOR PRODUCING XYLENE
    5.
    发明申请
    METHOD FOR PRODUCING XYLENE 有权
    生产XYLENE的方法

    公开(公告)号:US20140221714A1

    公开(公告)日:2014-08-07

    申请号:US14119302

    申请日:2012-05-24

    Abstract: A method for producing xylene from feedstock oil includes a cracking/reforming reaction step of bringing the feedstock oil into contact with a catalyst to produce monocyclic aromatic hydrocarbons; a separation/recovery step of separating and recovering, from a product obtained by the cracking/reforming reaction step, a fraction A containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 75° C. or higher and a 90 vol % distillation temperature of 140° C. or lower, a xylene fraction containing xylene, and a fraction B containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 145° C. or higher and a 90 vol % distillation temperature of 215° C. or lower; and a xylene conversion step of bringing a mixed fraction obtained by mixing the fractions A and B with each other into contact with a catalyst containing a solid acid to convert the mixed fraction into xylene.

    Abstract translation: 从原料油生产二甲苯的方法包括使原料油与催化剂接触以产生单环芳烃的裂化/重整反应步骤; 从裂解/重整反应步骤得到的产物中分离回收含有10体积%蒸馏温度为75℃以上且90体积%的蒸馏温度的单环芳烃的馏分A 140℃以下的二甲苯馏分和含有10体积%蒸馏温度为145℃以上且90体积%蒸馏温度为215℃以下的单环芳烃的馏分B。 ; 和二甲醚转化步骤,将通过将级分A和B混合得到的混合级分与含有固体酸的催化剂接触,将混合馏分转化成二甲苯。

    Use of monolith catalyst to prepare ethylbenzene
    6.
    发明授权
    Use of monolith catalyst to prepare ethylbenzene 失效
    使用整体催化剂制备乙苯

    公开(公告)号:US07297827B2

    公开(公告)日:2007-11-20

    申请号:US10998415

    申请日:2004-11-29

    Applicant: Kevin Kelly

    Inventor: Kevin Kelly

    Abstract: Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may be selected from, for example, zeolites such as beta zeolite and MCM-22 zeolite, and fixed super acids. Also disclosed is a method of preparing ethylbenzene by alkylating a mixture of benzene and ethylene in an alkylation reactor comprising a monolith catalyst system, including a monolith support impregnated or co-formed with a suitable catalyst. In one embodiment the invention provides a convenient means of upgrading an existing reactor that has previously been used for conventional liquid phase alkylations such as those catalyzed by aluminum trichloride. The inventive alkylation method may be effectively and advantageously carried out under critical or near critical conditions, if desired.

    Abstract translation: 公开了一种用于制备乙苯的烷基化反应器。 反应器包括整料催化剂体系,其包括用适于催化苯与乙烯烷基化的催化剂浸渍或共同形成的整料载体。 催化剂可以选自例如沸石如β沸石和MCM-22沸石,以及固定的超级酸。 还公开了通过在包含整体催化剂体系的烷基化反应器中烷基化苯和乙烯的混合物来制备乙苯的方法,其包括用合适的催化剂浸渍或共同形成的整料载体。 在一个实施方案中,本发明提供了先前已用于常规液相烷基化(例如由三氯化铝催化的那些)的现有反应器的方便的方法。 如果需要,本发明的烷基化方法可以有效地和有利地在临界条件或近临界条件下进行。

    Process for alkylation of an aromatic hydrocarbon or isoalkane with an olefin over the catalysis of a solid acid
    8.
    发明申请
    Process for alkylation of an aromatic hydrocarbon or isoalkane with an olefin over the catalysis of a solid acid 有权
    在固体酸催化下用烯烃烷基化芳族烃或异烷烃的方法

    公开(公告)号:US20070118005A1

    公开(公告)日:2007-05-24

    申请号:US10586510

    申请日:2005-01-19

    Inventor: Yigong He Zheng Man

    Abstract: The present invention discloses a process for alkylation of an aromatic hydrocarbon or isoalkane with an olefin over the catalysis of a solid acid, comprising contacting a reaction material containing an aromatic hydrocarbon or C4-C6 isoalkane, C2-C18 monoolefin and a compound containing a strongly electronegative element as promoter with a solid acid catalyst to carry out the alkylation, characterized in that the solid acid catalyst is contacted with a compound having a strongly electronegative element prior to its contact with the reaction material. Said process not only greatly increases the selectivity of the target product of the alkylation but also improves stability of the solid acid catalyst.

    Abstract translation: 本发明公开了一种在固体酸催化下用烯烃烷基化芳族烃或异烷烃的方法,包括使含有芳烃或C 4 -C 6的反应物质 异烷烃,C 2 -C 18单烯烃和含有强电负性元素作为促进剂的化合物与固体酸催化剂进行烷基化,其特征在于: 在与反应材料接触之前,使固体酸催化剂与具有强电负性元素的化合物接触。 所述方法不仅大大提高了烷基化目标产物的选择性,而且提高了固体酸催化剂的稳定性。

    Process for the preparation of substituted fluorenes
    9.
    发明申请
    Process for the preparation of substituted fluorenes 失效
    制备取代芴的方法

    公开(公告)号:US20070015946A1

    公开(公告)日:2007-01-18

    申请号:US11440276

    申请日:2006-06-29

    Abstract: Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. There is provided a 2,2′-dihalogen-diphenylmethylene having a methylene bridge connecting a pair of phenyl groups. Each phenyl group has a halogen on a proximal carbon atom relative to the methylene bridge. The halogenated diphenylmethylene is reacted with a coupling agent comprising a Group 2 or 12 transition metal in the presence of a nickel or palladium-based catalyst to remove the halogen atoms from the phenyl groups and couple the phenyl groups at the proximal carbon atoms to produce a fluorene ligand structure. The coupling agent may be zinc, cadmium or magnesium and the catalyst may be a monophosphene nickel complex. The halogenated diphenylmethylene may be an unsubstituted ligand structure or a monosubstituted or disubstituted ligand structure. The halogenated diphenylmethylene may be monosubstituted with a tertiary butyl group or may be a dialkyl diphenylmethylene having alkyl substituents at the directly distal positions of the phenyl groups relative to the methylene bridge.

    Abstract translation: 可用于茂金属型烯烃聚合催化剂中的芴基型配体结构和取代的芴基的制备方法。 提供了具有连接一对苯基的亚甲基桥的2,2'-二卤代 - 二苯基亚甲基。 每个苯基相对于亚甲基桥在近端碳原子上具有卤素。 卤化二苯基亚甲基与含有2或12族过渡金属的偶联剂在镍或钯基催化剂存在下反应,以从苯基除去卤素原子,并将近邻碳原子上的苯基偶联,生成 芴配体结构。 偶联剂可以是锌,镉或镁,催化剂可以是单磷酸镍络合物。 卤代二苯基亚甲基可以是未取代的配体结构或单取代或二取代的配体结构。 卤化二苯基亚甲基可以用叔丁基单取代,或者可以是在苯基相对于亚甲基桥的直接远端位置具有烷基取代基的二烷基二苯基亚甲基。

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