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75 条记录 (耗时 0.037 秒)

    Spiral wound element for separation
    31.
    发明授权
    Spiral wound element for separation 失效
    螺旋缠绕元件用于分离

    公开(公告)号：US5275726A

    公开(公告)日：1994-01-04

    申请号：US921872

    申请日：1992-07-29

    申请人： Joseph L. Feimer ,  Tan-Jen Chen ,  Dean L. Smith, Jr. ,  Donald T. Bray ,  Deborah de la Cruz

    发明人： Joseph L. Feimer ,  Tan-Jen Chen ,  Dean L. Smith, Jr. ,  Donald T. Bray ,  Deborah de la Cruz

    IPC分类号： B01D63/00 ,  B01D63/10

    CPC分类号： B01D63/10

    摘要： An improved spiral wound element for separations is disclosed wherein the improvement comprises using as the feed/retentate space one or more layers of a material having an open cross-sectional area in the range 30 to 70% and as the permeate spacer material at least three layers of material two of which are fine and have an open cross-sectional area of about 10 to 50% surrounding a coarse layer having an open cross-sectional area of about 50 to 90%.

    摘要翻译： 公开了一种用于分离的改进的螺旋缠绕元件，其中改进包括使用一层或多层具有在30-70％范围内的开口横截面积的材料作为进料/滞留物空间，并且作为渗透物间隔物材料至少三个 其中两层材料是细的并且具有围绕具有约50至90％的敞开横截面积的粗糙层的约10至50％的敞开横截面积。

    Intergrated membrane pre-extraction/solvent extraction of distillates
    32.
    发明授权
    Intergrated membrane pre-extraction/solvent extraction of distillates 失效
    集成膜预提取/馏出物溶剂萃取

    公开(公告)号：US5095170A

    公开(公告)日：1992-03-10

    申请号：US622443

    申请日：1990-12-05

    申请人： Tan-Jen Chen ,  James R. Sweet

    发明人： Tan-Jen Chen ,  James R. Sweet

    IPC分类号： C10G53/04

    CPC分类号： C10G53/04

    摘要： The yield, raffinate product quality, and throughput of the selective solvent extraction of hydrocarbon feeds is improved by subjecting the hydrocarbon feeds from which aromatic hydrocarbons are to be selectively solvent extracted to a membrane separation process which selectively permeates aromatics through the membranes to produce a permeate rich in aromatics and a retentate rich in saturates and 1-ring aromatics and subjecting this retentate to the selective solvent extraction process.

    摘要翻译： 通过使选择性地将芳烃选择性地溶剂萃取的烃进料经由选择性地通过膜渗透芳族化合物以产生渗透物的膜分离方法来改进烃进料的选择性溶剂萃取的产率，萃余液产品质量和通量 富含芳烃和富含饱和物和1-环芳烃的保留物，并使该滞留物进行选择性溶剂萃取过程。

    Process for producing cyclohexylbenzene
    40.
    发明授权
    Process for producing cyclohexylbenzene 有权
    生产环己基苯的方法

    公开(公告)号：US07906685B2

    公开(公告)日：2011-03-15

    申请号：US12601572

    申请日：2008-08-12

    申请人： Tan-Jen Chen ,  Francisco M. Benitez ,  Jane C. Cheng ,  Jon E. Stanat ,  John Scott Buchanan

    发明人： Tan-Jen Chen ,  Francisco M. Benitez ,  Jane C. Cheng ,  Jon E. Stanat ,  John Scott Buchanan

    IPC分类号： C07C45/27 ,  C07C27/08 ,  C07C2/68 ,  C07C15/067

    CPC分类号： C07C2/74 ,  Y02P20/52 ,  C07C13/28

    摘要： In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone. The benzene and hydrogen are then contacted in the at least one reaction zone under hydroalkylation conditions with a catalyst system comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene. The ratio of the total number of moles of hydrogen fed to said at least one reaction zone to the number of moles of benzene fed to said at least one reaction zone is between 0.4 and 0.9:1.

    摘要翻译： 在生产环己基苯的方法中，将苯和氢气进料至至少一个反应区。 然后使苯和氢在加氢烷基化条件下在至少一个反应区中与包含分子筛的催化剂体系接触，所述催化剂体系包含具有12.4±0.25,6.9±0.15,3.57±0.07的d间距最大值的X射线衍射图， 3.42±0.07埃，和至少一种氢化金属，以生产含有环己基苯的流出物。 供给到所述至少一个反应区的氢的总摩尔数与进料到所述至少一个反应区的苯的摩尔数之比为0.4-0.9:1。