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22 条记录 (耗时 0.018 秒)

    Method for activating zeolites containing organic cations
    1.
    发明授权
    Method for activating zeolites containing organic cations 失效
    用于活化含有机阳离子的沸石的方法

    公开(公告)号：US4916097A

    公开(公告)日：1990-04-10

    申请号：US194683

    申请日：1988-05-16

    申请人： Yung F. Chu ,  John P. McWilliams

    发明人： Yung F. Chu ,  John P. McWilliams

    IPC分类号： B01J29/76

    CPC分类号： B01J37/10 ,  B01J29/06 ,  B01J29/7007 ,  B01J29/7615 ,  B01J29/7815 ,  B01J2229/36

    摘要： A method for activation of an organic cation-containing crystalline catalyst is disclosed. The method includes contacting the catalyst with steam under conditions to decompose the organic cations, which result in the activation of the catalyst. The method has the advantage that organic cations are converted to non-hazardous by-products such as ammonia and light hydrocarbons such as ethylene. These are more easily controlled by environmental control schemes than higher molecular weight by-products resulting from traditional activation methods (nitrogen or nitrogen/air). The steamed catalyst can optionally be calcined to remove any organic material which may remain after steaming.For instance, a major product which results from decomposting the tetraethylammonium organic cations in zeolite .beta. is ethylene. The ethylene can be subsequently converted into carbon dioxide and water by oxidation.

    摘要翻译： 公开了一种用于活化含有机阳离子的结晶催化剂的方法。 该方法包括在分解有机阳离子的条件下使催化剂与蒸汽接触，这导致催化剂的活化。 该方法的优点是将有机阳离子转化为无害副产物如氨和轻质烃如乙烯。 这些比环境控制方案更容易受到传统活化方法（氮气或氮气/空气）所产生的较高分子量副产物的控制。 蒸汽催化剂可以任选地被煅烧以除去蒸汽后可能保留的任何有机材料。 例如，由β沸石中的四乙铵有机阳离子分解产生的主要产物是乙烯。 乙烯可以随后通过氧化转化成二氧化碳和水。

    Alkylation of aromatics
    2.
    发明授权
    Alkylation of aromatics 失效
    芳烃的烷基化

    公开(公告)号：US5157185A

    公开(公告)日：1992-10-20

    申请号：US402018

    申请日：1989-09-01

    申请人： Yung F. Chu ,  David O. Marler ,  John P. McWilliams

    发明人： Yung F. Chu ,  David O. Marler ,  John P. McWilliams

    IPC分类号： B01J29/40 ,  C07C2/66

    CPC分类号： C07C2/66 ,  B01J29/40 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  C07C2529/40

    摘要： Alkylation of aromatics, e.g. ethylbenzene preparation, with minimized o-xylene make by contacting with olefin alkylating agent in the presence of ZSM-5 crystals having a diffusion rate constant of at least about 100 sec.sup.-1 .times.10.sup.-6 and an alpha value of less than about 100 prepared from a non-organic forming mixture comprising a silica source of precipitated silica having a particle size of 1 to 500 microns.

    摘要翻译： 芳族化合物的烷基化，例如 乙基苯制备，通过在烯烃烷基化剂与ZSM-5晶体的存在下使烷基化反应最小化，所述ZSM-5晶体的扩散速率常数为至少约100秒-1×10-6，α值小于约100，由 非有机形成混合物，其包含粒度为1至500微米的沉淀二氧化硅的二氧化硅源。

    Transalkylation of polyaromatics
    3.
    发明授权
    Transalkylation of polyaromatics 失效
    多芳族化合物的烷基转移

    公开(公告)号：US4885426A

    公开(公告)日：1989-12-05

    申请号：US327378

    申请日：1989-03-23

    申请人： Yung F. Chu ,  David O. Marler ,  John P. McWilliams

    发明人： Yung F. Chu ,  David O. Marler ,  John P. McWilliams

    IPC分类号： C07C6/12

    CPC分类号： C07C6/126 ,  C07C2529/40

    摘要： A process is provided for transalkylation of polyalkylaromatics over a catalyst comprising a molecular sieve having a high lattice aluminum content whereby its silica/alumina mole ratio is less than 40 and an alpha value of at least about 140.

    摘要翻译： 提供了一种方法，用于在包含具有高格子铝含量的分子筛的催化剂上进行多烷基芳族化合物的烷基转移，由此其二氧化硅/氧化铝摩尔比小于40，α值至少为约140。

    Xylene isomerization process to exhaustively convert ethylbenzene and non-aromatics
    4.
    发明授权
    Xylene isomerization process to exhaustively convert ethylbenzene and non-aromatics 失效
    二甲苯异构化方法彻底转化乙苯和非芳族化合物

    公开(公告)号：US4899011A

    公开(公告)日：1990-02-06

    申请号：US819072

    申请日：1986-01-15

    申请人： Yung F. Chu ,  Charles T. Kresge ,  Rene B. LaPierre

    发明人： Yung F. Chu ,  Charles T. Kresge ,  Rene B. LaPierre

    IPC分类号： B01J29/00 ,  B01J29/40 ,  B01J29/70 ,  C07B61/00 ,  C07C1/00 ,  C07C5/27 ,  C07C15/08 ,  C07C67/00

    CPC分类号： C07C5/2724 ,  Y02P20/52

    摘要： A new xylene isomerization process which is capable of converting ethylbenzene and non-aromatic exhaustively while selectively converting xylenes to thermal equilibrium in mixed EB/xylene feeds is proposed. The new process employs a two component catalyst system; each of the components contains a strong hydrogenation metal and a zeolite. The zeolite of each of the two components differs from the other in its selectivity for xylene isomerization and its capacity to deethylete ethylbenzene. That selectivity for xylene isomerization is described by xylene diffusion properties of the zeolite. In one embodiment of the invention, ZSM-5 of greater than 1 micron crystal size and an alpha value of greater than 100 in a first component and ZSM-5 of less than 1 micron crystal size and an alpha of less than 100 in a second catalyst component satisfy the diffusion properties which allow for the exhaustive conversion of ethyl benzene and non-aromatics and the selectivity for xylene isomerization of typical xylene isomerization feeds. In a preferred embodiment, the feed is cascaded over the first component and then the aforementioned second component.

    摘要翻译： 提出了一种新的二甲苯异构化方法，其能够在选择性地将二甲苯转化为混合的EB /二甲苯进料中的热平衡的同时彻底转化乙苯和非芳族。 新工艺采用双组分催化剂体系; 每种组分含有强氢化金属和沸石。 两种组分中的每一种的沸石在二甲苯异构化的选择性及其对乙酸乙酯的能力方面彼此不同。 对二甲苯异构化的选择性由沸石的二甲苯扩散性质描述。 在本发明的一个实施方案中，大于1微米晶体尺寸的ZSM-5和第一组分中的大于100的α值和小于1微米晶体尺寸的ZSM-5和在一秒钟内小于100的α 催化剂组分满足允许乙苯和非芳族化合物的彻底转化以及典型的二甲苯异构化进料的二甲苯异构化的选择性的扩散性质。 在优选实施方式中，进料在第一组分上然后上述第二组分级联。

    Active zeolite catalysts of improved stability for producing gasoline from methanol
    6.
    发明授权
    Active zeolite catalysts of improved stability for producing gasoline from methanol 失效
    活性沸石催化剂具有改善从甲醇生产汽油的稳定性

    公开(公告)号：US4663492A

    公开(公告)日：1987-05-05

    申请号：US872359

    申请日：1986-06-09

    申请人： Arthur W. Chester ,  Yung F. Chu

    发明人： Arthur W. Chester ,  Yung F. Chu

    IPC分类号： B01J29/40 ,  B01J37/10 ,  C07C5/27 ,  C07C11/20

    CPC分类号： B01J37/10 ,  B01J29/40 ,  C07C5/2708 ,  B01J2229/36 ,  C07C2529/40

    摘要： A feedstock of low molecular weight oxygenates such as methanol and/or dimethylether is contacted with a mildly presteamed or hydro-thermally treated zeolite catalyst in a reaction zone to produce liquid hydrocarbons in the gasoline boiling range. The pretreated zeolite catalyst has an .alpha.-value (acid cracking activity) substantially the same as the .alpha.-value of fresh unsteamed catalyst and shows increased stability and resistance to aging under oxygenate conversion conditions of elevated temperature and pressure.

    摘要翻译： 在反应区中将低分子量含氧化合物如甲醇和/或二甲醚的原料与轻度预蒸馏或热热处理的沸石催化剂接触以产生汽油沸程范围内的液体烃。 预处理的沸石催化剂具有基本上与新鲜未蒸汽催化剂的α值相同的α-值（酸裂解活性），并且在升高的温度和压力的含氧化合物转化条件下显示增加的稳定性和耐老化性。

    Process for upgrading petroleum residua
    8.
    发明授权
    Process for upgrading petroleum residua 失效
    升华石油渣的工艺

    公开(公告)号：US4592828A

    公开(公告)日：1986-06-03

    申请号：US607373

    申请日：1984-05-07

    申请人： Yung F. Chu ,  Stuart S. Shih

    发明人： Yung F. Chu ,  Stuart S. Shih

    IPC分类号： C10G45/64 ,  C10G65/04 ,  C10G65/12

    CPC分类号： C10G65/043 ,  C10G45/64

    摘要： Petroleum resid is upgraded in an improved process to produce a low pour point 650.degree.-775.degree. F. fraction without disturbing the product characteristics of other distillate boiling range fractions. The 650.degree.-775.degree. F. fraction is dewaxed separately from the remaining hydrodesulfurized product.

    摘要翻译： 石油沥青在改进过程中升级，产生低倾点650°-775°F馏分，而不会干扰其他馏出物沸点馏分的产物特性。 650°-775°F馏分与剩余的加氢脱硫产物分开脱蜡。