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    Method for removing dienes from a material stream containing C3 to C5 hydrocarbons by selective hydrogenation
    2.
    发明授权
    Method for removing dienes from a material stream containing C3 to C5 hydrocarbons by selective hydrogenation 有权

    公开(公告)号：US11384037B2

    公开(公告)日：2022-07-12

    申请号：US16759095

    申请日：2018-10-25

    Applicant: BASF SE

    Inventor： Stefan Iselborn ,  Andreas Joerg Ufer ,  Joachim Koetter

    IPC: C07C7/163

    Abstract: The invention relates to a process for removing dienes from a material stream comprising C3 to C5 hydrocarbons by selective hydrogenation at a specified reaction pressure and a specified reaction temperature in the presence of a hydrogenation catalyst, wherein the reaction pressure and the reaction temperature at the reactor inlet are regulated such that the reaction pressure at the reactor inlet does not deviate by more than 0.01 bar from the specified reaction pressure and the reaction temperature at the reactor inlet does not deviate by more than 0.1° C. from the specified reaction temperature and the proportion of hydrogen supplied to the selective hydrogenation is in the range from 2 to 20 moles per mole of diene present in the material stream comprising C3 to C5 hydrocarbons.

    Producing C5 olefins from steam cracker C5 feeds
    4.
    发明授权
    Producing C5 olefins from steam cracker C5 feeds 有权

    公开(公告)号：US10814301B2

    公开(公告)日：2020-10-27

    申请号：US15901415

    申请日：2018-02-21

    Applicant: Lummus Technology Inc.

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

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

    Abstract: Producing C5 olefins from steam cracker C5 reeds 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 traction 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.

    PRODUCING C5 OLEFINS FROM STEAM CRACKER C5 FEEDS
    6.
    发明申请
    PRODUCING C5 OLEFINS FROM STEAM CRACKER C5 FEEDS 审中-公开

    公开(公告)号：US20200108368A1

    公开(公告)日：2020-04-09

    申请号：US16707197

    申请日：2019-12-09

    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

    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.

    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：US10543475B2

    公开(公告)日：2020-01-28

    申请号：US16379414

    申请日：2019-04-09

    Applicant: LUMMUS TECHNOLOGY LLC

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

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

    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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