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    PRODUCING C5 OLEFINS FROM STEAM CRACKER C5 FEEDS
    1.
    发明申请
    PRODUCING C5 OLEFINS FROM STEAM CRACKER C5 FEEDS 有权

    公开(公告)号：US20210031164A1

    公开(公告)日：2021-02-04

    申请号：US17069208

    申请日：2020-10-13

    Applicant: LUMMUS TECHNOLOGY LLC

    Inventor： Yongqiang Xu ,  Peter Loezos ,  Willibrord A. Groten ,  Romain Lemoine

    IPC: B01J19/24 ,  C07C6/04 ,  C07C7/05 ,  C07C7/163 ,  C07C7/167 ,  C07C7/177 ,  C10G45/32 ,  C10G50/00 ,  C10G9/36 ,  B01J8/00 ,  B01J8/04 ,  C07C5/03 ,  C10G45/36 ,  C07C5/08 ,  C10G45/40

    Abstract: Producing C5 olefins from steam cracker C5 feeds may include reacting a mixed hydrocarbon stream comprising cyclopentadiene, C5 olefins, and C6+ hydrocarbons in a dimerization reactor where cyclopentadiene is dimerized to dicyclopentadiene. The dimerization reactor effluent may be separated into a fraction comprising the C6+ hydrocarbons and dicyclopentadiene and a second fraction comprising C5 olefins and C5 dienes. The second fraction, a saturated hydrocarbon diluent stream, and hydrogen may be fed to a catalytic distillation reactor system for concurrently separating linear C5 olefins from saturated hydrocarbon diluent, cyclic C5 olefins, and C5 dienes contained in the second fraction and selectively hydrogenating C5 dienes. An overhead distillate including the linear C5 olefins and a bottoms product including cyclic C5 olefins are recovered from the catalytic distillation reactor system. Other aspects of the C5 olefin systems and processes, including catalyst configurations and control schemes, are also described.

    Reverse acid and hydrocarbon cascading in alkylation
    6.
    发明授权
    Reverse acid and hydrocarbon cascading in alkylation 有权

    公开(公告)号：US10858299B2

    公开(公告)日：2020-12-08

    申请号：US16401595

    申请日：2019-05-02

    Applicant: LUMMUS TECHNOLOGY LLC

    Inventor： Zan Liu ,  Peter Loezos ,  Jackeline Medina ,  Romain Lemoine

    IPC: C07C2/62 ,  B01J19/24

    Abstract: A cascade reactor scheme with acid and hydrocarbon flowing in reverse directions. The systems and processes for alkylation of olefins herein may include providing a first olefin to a first alkylation zone, and a second olefin to a second alkylation zone. Isoparaffin may be provided to the first alkylation zone. The isoparaffin and first olefin may be contacted with a partially spent sulfuric acid in the first alkylation zone to form a spent acid phase and a first hydrocarbon phase including alkylate and unreacted isoparaffin. The first hydrocarbon phase and second olefin may be contacted with a sulfuric acid feed in the second alkylation zone to form a second hydrocarbon phase, also including alkylate and unreacted isoparaffin, and the partially spent sulfuric acid that is fed to the first alkylation zone. Further, the second hydrocarbon phase may be separated, recovering an isoparaffin fraction and an alkylate product fraction.

    Producing C5 olefins from steam cracker C5 feeds
    7.
    发明授权
    Producing C5 olefins from steam cracker C5 feeds 有权

    公开(公告)号：US11198108B2

    公开(公告)日：2021-12-14

    申请号：US17069208

    申请日：2020-10-13

    Applicant: LUMMUS TECHNOLOGY LLC

    Inventor： Yongqiang Xu ,  Peter Loezos ,  Willibrord A. Groten ,  Romain Lemoine

    IPC: B01J19/24 ,  C07C6/04 ,  C07C7/05 ,  C07C7/163 ,  C07C7/167 ,  C07C7/177 ,  C10G45/32 ,  C10G50/00 ,  C10G9/36 ,  B01J8/00 ,  B01J8/04 ,  C07C5/03 ,  C10G45/36 ,  C07C5/08 ,  C10G45/40

    Abstract: Producing C5 olefins from steam cracker C5 feeds may include reacting a mixed hydrocarbon stream comprising cyclopentadiene, C5 olefins, and C6+ hydrocarbons in a dimerization reactor where cyclopentadiene is dimerized to dicyclopentadiene. The dimerization reactor effluent may be separated into a fraction comprising the C6+ hydrocarbons and dicyclopentadiene and a second fraction comprising C5 olefins and C5 dienes. The second fraction, a saturated hydrocarbon diluent stream, and hydrogen may be fed to a catalytic distillation reactor system for concurrently separating linear C5 olefins from saturated hydrocarbon diluent, cyclic C5 olefins, and C5 dienes contained in the second fraction and selectively hydrogenating C5 dienes. An overhead distillate including the linear C5 olefins and a bottoms product including cyclic C5 olefins are recovered from the catalytic distillation reactor system. Other aspects of the C5 olefin systems and processes, including catalyst configurations and control schemes, are also described.

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