Synthesis of para-xylene and toluene
    5.
    发明授权
    Synthesis of para-xylene and toluene 有权
    对二甲苯和甲苯的合成

    公开(公告)号:US09174893B2

    公开(公告)日:2015-11-03

    申请号:US13875610

    申请日:2013-05-02

    Abstract: A method of making para-xylene or toluene is carried out by: (a) reacting a C5 or C6 linear monoene (itself, or formed from a C5 or C6 linear alkane) with a hydrogen acceptor in the presence of a hydrogen transfer catalyst to produce a C5 or C6 diene; (b) reacting the C5-C6 diene with ethylene to produce a cyclohexene having 1 or 2 methyl groups substituted thereon; and then (c) either (i) dehydrogenating the cyclohexene in the presence of a hydrogen acceptor with a hydrogen transfer catalyst to produce a compound selected from the group consisting of para-xylene and toluene, or (ii) dehydrogenating the cyclohexene in the absence of a hydrogen acceptor with a dehydrogenation catalyst, to produce para-xylene or toluene.

    Abstract translation: 通过以下方法进行制备对二甲苯或甲苯的方法:(a)在氢转移催化剂存在下使C5或C6直链单烯(其自身或由C5或C6直链烷烃形成)与氢受体反应, 产生C5或C6二烯; (b)使C5-C6二烯与乙烯反应,生成其上取代有1或2个甲基的环己烯; 然后(c)(i)在氢转移催化剂存在下在氢受体存在下使环己烯脱氢以产生选自对二甲苯和甲苯的化合物,或(ii)在不存在的情况下使环己烯脱氢 的氢受体与脱氢催化剂反应,生成对二甲苯或甲苯。

    ALKANE DEHYDROGENATION PROCESS
    6.
    发明申请
    ALKANE DEHYDROGENATION PROCESS 有权
    碱脱氢方法

    公开(公告)号:US20150251171A1

    公开(公告)日:2015-09-10

    申请号:US14638997

    申请日:2015-03-04

    Abstract: Disclosed herein are processes for dehydrogenation of an alkane to an alkene using an iridium pincer complex. In the dehydrogenation reactions, hydrogen that is co-formed during the process must be removed for the chemical reaction to proceed and to prevent the excess hydrogen from poisoning the catalyst. In one embodiment the process comprises providing an alkane feedstock comprising at least one alkane and contacting the alkane with an iridium pincer complex in the presence of a hydrogen acceptor selected from the group consisting of ethylene, propene, or mixtures to form an alkene product. The processes disclosed herein can accomplish facile, low-temperature transfer dehydrogenation of alkanes with unprecedented selectivities and TONs at a reasonable rate of conversion.

    Abstract translation: 本文公开了使用铱钳形复合物将烷烃脱氢成烯烃的方法。 在脱氢反应中,必须除去在该过程中共同形成的氢,以进行化学反应并防止过量的氢中毒催化剂。 在一个实施方案中,该方法包括提供包含至少一种烷烃的烷烃原料,并在选自乙烯,丙烯或其混合物的氢受体存在下与铱螯合物接触以形成烯烃产物。 本文公开的方法可以以合理的转化速率,以前所未有的选择性和TON来实现烷烃的轻度,低温转移脱氢。

    Solid acid catalyst
    7.
    发明授权
    Solid acid catalyst 有权
    固体酸催化剂

    公开(公告)号:US08314045B1

    公开(公告)日:2012-11-20

    申请号:US12913618

    申请日:2010-10-27

    Abstract: A porous solid acid catalyst having high concentration of acidic sites and a large surface area includes a porous silica support and a sulfonated carbon layer disposed within the pores of the silica support. The catalyst, in certain embodiments, has a concentration of —SO3H groups of at least about 0.5 mmol/g and a predominant pore size of at least about 300 Å. The catalyst is used to catalyze a variety of acid-catalyzed reactions, including but not limited to alkylation, acylation, etherification, olefin hydration and alcohol dehydration, dimerization of olefin and bicyclic compounds, esterification and transesterification. For example, the catalyst can be used to catalyze esterification of free fatty acids (FFAs) and, in certain embodiments, to catalyze transesterification of triglycerides in fats and oils. The catalyst is prepared by impregnating a silica support with a phenol-containing material, processing the material to form a polymer, carbonizing the polymer to form a carbon layer within the silica support, and sulfonating the resulting carbon layer to form sulfonated carbon.

    Abstract translation: 具有高浓度酸性位点和大表面积的多孔固体酸催化剂包括多孔二氧化硅载体和设置在二氧化硅载体的孔内的磺化碳层。 在某些实施方案中,催化剂具有至少约0.5mmol / g的-SO 3 H基团浓度和至少约300A的主要孔径。 催化剂用于催化各种酸催化反应,包括但不限于烷基化,酰化,醚化,烯烃水合和醇脱水,烯烃和双环化合物的二聚,酯化和酯交换。 例如,催化剂可用于催化游离脂肪酸(FFA)的酯化,并且在某些实施方案中催化甘油三酯在脂肪和油中的酯交换。 催化剂是通过用含苯酚的材料浸渍二氧化硅载体,加工该材料以形成聚合物,碳化聚合物以在二氧化硅载体内形成碳层并磺化所得的碳层以形成磺化碳来制备的。

    Nb/Mordenite Transalkylation Catalyst
    8.
    发明申请
    Nb/Mordenite Transalkylation Catalyst 审中-公开
    Nb /丝光沸石烷基转移催化剂

    公开(公告)号:US20100185035A1

    公开(公告)日:2010-07-22

    申请号:US12748953

    申请日:2010-03-29

    Abstract: A niobium-modified mordenite catalyst can be made from water soluble niobium precursors such as niobium oxalate and ammonium niobate(V) oxalate and can be used in toluene disproportionation reactions. Embodiments can provide a toluene conversion of at least 30 wt % of the toluene feed with selectivity to benzene above 40 wt % of the reaction product composition and to xylenes above 40 wt % of the reaction product composition and non-aromatics selectivity of less than 1.0 wt % of the reaction product composition.

    Abstract translation: 铌改性的丝光沸石催化剂可以由草酸铌和铌酸铌酸盐(V)等水溶性铌前体制成,可用于甲苯歧化反应。 实施方案可以提供至少30重量%的甲苯进料的甲苯转化率,对于反应产物组合物的40重量%以上的苯的选择性以及反应产物组合物的40重量%以上的二甲苯和小于1.0的非芳烃选择性 wt%的反应产物组合物。

    Reactor Panel for Catalytic Processes
    9.
    发明申请
    Reactor Panel for Catalytic Processes 有权
    催化剂反应器面板

    公开(公告)号:US20100145104A1

    公开(公告)日:2010-06-10

    申请号:US12452364

    申请日:2008-06-25

    Abstract: Modular reactor panel (1) for catalytic processes, comprising a feed header (5), a product header (7) and adjacent channels (3), each channel (3) having a length, running from an entrance end to an exit end, and wherein the entrance ends are directly connected to and open into the feed header (5) and the exit ends are directly connected to and open into the product header (7) and wherein the feed header (5) has at least one connection (9) to a feed line (51) and the product header (7) has at least one connection to a product line (55) and wherein part (21) of at least one of the feed header (5) and the product header (7) is detachable giving access to the channel ends and reactor comprising a housing (47) containing one or more of said reactor panels (1, 29), the reactor further comprising a feed line (51) and a product line (55), the panels (29) being connected to the feed line (51) and to product line (55).

    Abstract translation: 用于催化过程的模块化反应器面板(1)包括进料头(5),产品集管(7)和相邻通道(3),每个通道(3)具有从入口端到出口端的长度, 并且其中所述入口端直接连接到所述进料头(5)并且进入所述进料头(5),并且所述出口端直接连接到所述产品集管(7)并且进入所述产品集管(7),并且其中所述进料集管(5)具有至少一个连接 )供给管线(51),并且产品集管(7)具有至产品管线(55)的至少一个连接,并且其中进料集管(5)和产品集管(7)中的至少一个的部分(21) )可拆卸,允许进入通道端部,反应器包括容纳一个或多个所述反应器面板(1,29)的壳体(47),所述反应器还包括进料管线(51)和产品管线(55),所述反应器 面板(29)连接到馈送线(51)和产品线(55)。

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