Sulfolane purification method
    4.
    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
    5.
    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。

    Separation of sulfolane from conjunct polymeric byproducts
    6.
    发明授权
    Separation of sulfolane from conjunct polymeric byproducts 失效
    环丁砜与结合的聚合副产物的分离

    公开(公告)号:US5262579A

    公开(公告)日:1993-11-16

    申请号:US991918

    申请日:1992-12-17

    摘要: The present invention provides a method for separating sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:(a) removing HF from said mixture to provide an intermediate stream containing less than about 30 weight percent HF;(b) contacting said intermediate stream with water;(c) contacting said intermediate stream with an aliphatic hydrocarbon co-solvent having from about 3 to about 20 carbon atoms concurrently with said water-contacting step (b);(d) recovering an extract stream enriched in sulfolane and hydrofluoric acid; and(e) recovering a raffinate stream enriched in conjunct polymers.

    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环丁砜的方法,其包括以下顺序步骤:(a)从所述混合物中除去HF以提供含有少于约30重量%HF的中间物流; (b)使所述中间物流与水接触; (c)使所述中间物流与具有约3至约20个碳原子的脂族烃共溶剂与所述水接触步骤(b)同时接触; (d)回收富含环丁砜和氢氟酸的萃取物流; 和(e)回收富含结合聚合物的萃余液流。

    Catalyst pretreatment for olefin hydration
    7.
    发明授权
    Catalyst pretreatment for olefin hydration 失效
    催化剂预处理烯烃水合

    公开(公告)号:US5012014A

    公开(公告)日:1991-04-30

    申请号:US515029

    申请日:1990-04-26

    摘要: A process for production of alcohol or ether by hydration of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a hydration zone with porous solid metal oxide acidic olefin hydration catalyst under olefins hydration conditions. The process is characterized by the step of pretreating porous solid catalyst, such as acid zeolite, prior to contacting with the olefinic feedstock with a wetting agent containing at least one polar aliphatic oxygenated hydrocarbon to substantially wet said solid catalyst and sorb said wetting agent into pores of said solid catalyst. After initiating hydration reaction by feeding the olefinic feedstock and water, increased catalytic activity is obtained. The process is particularly useful for making isopropanol and DIPE from propene and water.

    Isomerization process to produce low pour point distillate fuels and
lubricating oil stocks
    9.
    发明授权
    Isomerization process to produce low pour point distillate fuels and lubricating oil stocks 失效
    产生低倾点馏分燃料和润滑油库存的异构化过程

    公开(公告)号:US4554065A

    公开(公告)日:1985-11-19

    申请号:US606499

    申请日:1984-05-03

    IPC分类号: C10G65/04 C10G65/10 C10G65/12

    CPC分类号: C10G65/043

    摘要: A process for dewaxing a hydrocarbon feedstock with a relatively high pour point and containing normal and slightly branched paraffins by subjecting said feed to catalytic dewaxing over a noble metal promoted zeolite beta catalyst followed by dewaxing with a base metal promoted zeolite beta catalyst. The feed may be hydrotreated before dewaxing.

    摘要翻译: 通过使所述进料在贵金属上促进沸石β催化剂进行催化脱蜡,然后用碱金属促进的沸石β催化剂脱蜡,使具有较高倾点的烃原料脱蜡并含有正常和轻微支化的链烷烃的方法。 进料可以在脱蜡之前进行加氢处理。

    Single path alkylation method employing reduced acid inventory
    10.
    发明授权
    Single path alkylation method employing reduced acid inventory 失效
    单路烷基化方法采用减少酸库存

    公开(公告)号:US5258568A

    公开(公告)日:1993-11-02

    申请号:US965306

    申请日:1992-10-23

    IPC分类号: C07C2/62 C07C2/56 C07C2/58

    摘要: A single path process for alkylating a hydrocarbon feedstock containing an olefin and an isoparaffin is disclosed. The process includes dispersing an acid-based liquid alkylation catalyst into a reaction zone for contact with a continuous hydrocarbon phase. The process further includes separating the hydrocarbon phase from the acid catalyst upon completion of the alkylation reaction and providing a continuous on-line regeneration of the entire volume of catalyst once it has been separated from the hydrocarbon phase.

    摘要翻译: 公开了用于烷基化含有烯烃和异链烷烃的烃原料的单程方法。 该方法包括将酸基液体烷基化催化剂分散在与连续烃相接触的反应区中。 该方法还包括在烷基化反应完成时从酸催化剂中分离出烃相,并且一旦将其从烃相中分离出来,就提供了整个体积催化剂的连续在线再生。