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    Process for increasing the concentration of normal paraffins in a light naphtha stream
    1.
    发明授权
    Process for increasing the concentration of normal paraffins in a light naphtha stream 有权

    公开(公告)号：US12024681B2

    公开(公告)日：2024-07-02

    申请号：US17859917

    申请日：2022-07-07

    申请人： UOP LLC

    发明人： Mark Lapinski ,  Ram Ganesh Rokkam ,  Cora Wang Ploentham ,  Gregory Funk

    IPC分类号： C10G35/06

    CPC分类号： C10G35/06 ,  C10G2300/1037

    摘要： A process increases the concentration of normal paraffins in a feed stream comprising separating a naphtha feed stream into a normal paraffin rich stream and a non-normal paraffin rich stream. A naphtha feed stream may be separated into a normal paraffin stream and a non-normal paraffin stream. An isomerization feed stream is taken from the non-normal paraffin stream and isomerized over an isomerization catalyst to convert non-normal paraffins to normal paraffins and produce an isomerization effluent stream. The isomerization effluent stream may be separated into a propane stream and a C4+ hydrocarbon stream optionally in a single column. The C4+ hydrocarbon stream may be recycled to the step of separating a naphtha feed stream.

    Method for Regenerating Semi-Regenerated Reforming Catalyst
    6.
    发明申请
    Method for Regenerating Semi-Regenerated Reforming Catalyst 有权
    再生半再生催化剂的再生方法

    公开(公告)号：US20160279626A1

    公开(公告)日：2016-09-29

    申请号：US15081234

    申请日：2016-03-25

    申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC

    发明人： Daqing ZHANG ,  Gaoshan ZANG ,  Yuhong ZHANG ,  Jiaxin WANG ,  Tao WANG

    IPC分类号： B01J38/44 ,  B01J38/60 ,  B01J38/10 ,  B01J27/32 ,  B01J38/02

    CPC分类号： B01J38/44 ,  B01J27/13 ,  B01J27/32 ,  B01J37/20 ,  B01J38/04 ,  B01J38/10 ,  B01J38/14 ,  B01J38/18 ,  B01J38/60 ,  B01J38/62 ,  C10G35/06 ,  C10G35/09

    摘要： A method for regenerating semi-regenerated reforming catalyst comprises adjusting the reaction temperature to 250-480° C.; introducing sulfur-containing naphtha into the reforming reactor, so that the sulfur content in the catalyst is 0.32-0.8 mass %; then stopping introducing the raw materials into the reforming reactor; subjecting the catalyst to coke-burning, oxychlorination and reduction. Another method for regenerating semi-regenerated reforming catalyst comprises coke-burning the spent catalyst; introducing sulfate ions thereinto; then performing oxychlorination and reduction. There is still another method for regenerating a platinum-rhenium reforming catalyst, comprising coke-burning the spent catalyst; introducing sulfur and chlorine by impregnation; then drying, calcinating and reducing. The catalysts regenerated by said methods can be used without presulfurization and have excellent regeneration performance.

    摘要翻译： 再生再生重整催化剂的方法包括将反应温度调节至250-480℃; 将含硫的石脑油引入重整反应器中，使得催化剂中的硫含量为0.32-0.8质量％; 然后停止将原料引入重整反应器; 对催化剂进行焦烧，氧氯化和还原。 再生再生重整催化剂的另一种方法包括焦炭燃烧废催化剂; 向其中引入硫酸根离子; 然后进行氧氯化和还原。 还有另一种再生铂 - 铼重整催化剂的方法，包括焦炭燃烧废催化剂; 通过浸渍引入硫和氯; 然后干燥，煅烧和还原。 通过所述方法再生的催化剂可以在没有预硫化的情况下使用并且具有优异的再生性能。