Low pressure naphtha hydrocracking process
    23.
    发明授权
    Low pressure naphtha hydrocracking process 有权
    低压石脑油加氢裂化工艺

    公开(公告)号:US06709571B1

    公开(公告)日:2004-03-23

    申请号:US09357504

    申请日:1999-07-20

    IPC分类号: C10G4700

    CPC分类号: C10G47/16 C10G65/12

    摘要: This invention is directed to an extinction recycle naphtha hydrocracking processes. Large pore zeolite catalysts with Constraint Indices less than 2, such as USY or beta, which are loaded with noble metals such as Pt or Pd or with transition metals such as Ni in combination with Mo or W are employed. Preferably, low hydrogen partial pressures, and a feedstock relatively rich in hydrogen and low in aromatics content, are used, in order to extend catalyst cycle length.

    摘要翻译: 本发明涉及消光再循环石脑油加氢裂化方法。 使用小于2的约束指数的大孔沸石催化剂,例如USY或β,其负载贵金属如Pt或Pd或与过渡金属如Ni结合使用Mo或W。 优选地,为了延长催化剂循环长度,使用低氢分压和相对富氢和低芳烃含量的原料。

    Sulfolane purification method
    25.
    发明授权
    Sulfolane purification method 失效
    环丁砜净化方法

    公开(公告)号:US5276243A

    公开(公告)日:1994-01-04

    申请号:US991922

    申请日:1992-12-17

    摘要: The present invention provides a method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:(a) separating hydrofluoric acid from said mixture to provide an intermediate stream containing less than about 30 percent hydrofluoric acid by weight;(b) gravitationally separating said intermediate stream into a sulfolane-enriched stream and a conjunct polymer-enriched stream;(c) contacting said sulfolane-enriched stream with a polar extraction solvent to provide an extract stream enriched in sulfolane and a raffinate stream enriched in conjunct polymers;(d) stripping the polar extraction solvent from said sulfolane-enriched extract stream; and(e) recovering sulfolane from said enriched stream of step (d).

    摘要翻译: 本发明提供了从含有结合聚合物,环丁砜和氢氟酸的混合物中分离结合聚合物和环丁砜的方法,包括以下顺序步骤:(a)从所述混合物中分离出氢氟酸,以提供含有少于约30% 氢氟酸; (b)将所述中间物流重力分离成富含环丁砜的物流和富含聚合物的混合物流; (c)使富含环丁砜的料流与极性萃取溶剂接触,以提供富含环丁砜的萃取物流和富含结合聚合物的萃余液流; (d)从所述富含环丁砜的萃取物流中汽提极性萃取溶剂; 和(e)从步骤(d)的富集流中回收环丁砜。

    Sulfolane purification by hydrocarbon extraction
    26.
    发明授权
    Sulfolane purification by hydrocarbon extraction 失效
    通过烃提取的环丁砜净化

    公开(公告)号:US5264650A

    公开(公告)日:1993-11-23

    申请号:US991919

    申请日:1992-12-17

    摘要: The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:(a) separating hydrofluoric acid from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid to provide a first intermediate stream containing less than about 30 percent hydrofluoric acid by weight;(b) mixing said intermediate stream with a nonpolar extraction solvent to provide a second intermediate stream; and(c) gravitationally separating said intermediate stream into a less dense extract stream enriched in conjunct polymers and a more dense liquid stream enriched in sulfolane.

    摘要翻译: 本发明提供了一种从含有结合聚合物,环丁砜和氢氟酸的混合物中分离形成酸催化的异链烷烃 - 烯烃烷基化和环丁砜副产物的结合聚合物的方法,其包括以下步骤:(a)将氢氟酸与 含有结合聚合物,环丁砜和氢氟酸的混合物,以提供含有按重量计小于约30%氢氟酸的第一中间物流; (b)将所述中间物流与非极性萃取溶剂混合以提供第二中间物流; 和(c)将所述中间物流重力分离成富含结合聚合物的较不致密的提取物流和富含环丁砜的更致密的液体物流。

    Liquid acid alkylation catalyst and isoparaffin:olefin alkylation process
    27.
    发明授权
    Liquid acid alkylation catalyst and isoparaffin:olefin alkylation process 失效
    液体酸烷基化催化剂和异链烷烃:烯烃烷基化方法

    公开(公告)号:US5202518A

    公开(公告)日:1993-04-13

    申请号:US761567

    申请日:1991-09-18

    IPC分类号: B01J27/06 B01J31/04 C07C2/62

    摘要: The invention provides an acid catalyst composition for alkylation of an isoparaffin with an olefin comprising from about 10 to about 90 percent of at least one acid selected from the group consisting of hydrofluoric acid and the halogen-substituted sulfonic acids, together with from about 10 to about 90 weight percent of a mono-, di-, or tri-carboxylic acid substituted member selected from the group consisting of alkanes, aromatics, haloalkanes, and haloaromatics having from about 1 to about 30 carbon atoms.

    摘要翻译: 本发明提供了一种酸性催化剂组合物,其用于用烯烃烷基化异链烷烃,所述烯烃包含约10至约90%的至少一种选自氢氟酸和卤素取代的磺酸的酸,以及约10至 约90重量%的选自具有约1至约30个碳原子的烷烃,芳族化合物,卤代烷烃和卤代芳族化合物的单,二或三羧酸取代的成员。

    Production of lubricant stocks from polycyclic paraffins
    28.
    发明授权
    Production of lubricant stocks from polycyclic paraffins 失效
    从多环烷烃生产润滑油库存

    公开(公告)号:US5043503A

    公开(公告)日:1991-08-27

    申请号:US566927

    申请日:1990-08-14

    IPC分类号: B01J29/04 C07C2/54

    摘要: Alkylated polycycloparaffinic compounds useful as lubricating stocks are prepared by alkylating a polycycloparaffinic compound with an alkylating agent under alkylation reaction conditions in the presence of a zeolite catalyst. Useful zeolites include zeolite Beta as well as zeolites having a Constraint Index of from about 1 to about 10, such as ZSM-5 and MCM-22. In a preferred embodiment, the polycycloparaffin comprises adamantane and the alkylating agent is a C.sub.14 alpha-olefin.

    摘要翻译: 通过在烷基化反应条件下在沸石催化剂存在下,用烷基化剂烷基化多环烷烃化合物来制备可用作润滑原料的烷基化聚环烷烃化合物。 有用的沸石包括沸石β以及约1至约10的约束指数的沸石,例如ZSM-5和MCM-22。 在优选的实施方案中,聚环烷烃包括金刚烷,烷基化剂是C14α-烯烃。

    Liquid acid alkylation catalyst composition and isoparaffin:olefin
alkylation process
    30.
    发明授权
    Liquid acid alkylation catalyst composition and isoparaffin:olefin alkylation process 失效
    液体酸性催化剂组合物和异烟肼:烯烃烷基化方法

    公开(公告)号:US5220096A

    公开(公告)日:1993-06-15

    申请号:US719276

    申请日:1991-06-21

    IPC分类号: B01J31/02 C07C2/62

    摘要: The invention provides an isoparaffin:olefin alkylation catalyst composition comprising at least one acid selected from the group consisting of hydrofluoric acid and the halogen-substituted sulfonic acids, together with a carbonate additive having the formula ROC(O)OR or ##STR1## wherein R is selected from alkyl, alkyl halide, aromatic and halogenated aromatic groups having from about 1 to about 30 carbon atoms, and an isoparaffin:olefin alkylation process employing the same.

    摘要翻译: 本发明提供了一种异链烷烃:烯烃烷基化催化剂组合物,其包含至少一种选自氢氟酸和卤素取代的磺酸的酸,以及具有式ROC(O)OR或者其中R 选自具有约1至约30个碳原子的烷基,烷基卤化物,芳族和卤代芳族基团,以及使用其的异构烷烃:烯烃烷基化方法。