OLEFIN SKELETAL ISOMERIZATION PROCESS
    2.
    发明公开
    OLEFIN SKELETAL ISOMERIZATION PROCESS 失效
    OLEFIN骨架异构化过程

    公开(公告)号:EP0991613A1

    公开(公告)日:2000-04-12

    申请号:EP98923872.0

    申请日:1998-06-02

    CPC分类号: C07C11/02 Y02P20/127

    摘要: An isomerization process for C4 to C15 olefins carried out by the reaction of C4 to C15 olefins, having a first skeletal distribution, with aromatic compounds under alkylation conditions to produce an alkylated aromatic product, dealkylation of the alkylated aromatic product under dealkylation conditions to produce a dealkylated product comprising said aromatic compounds and olefins corresponding to the olefins in the alkylation and having a second skeletal distribution different than said first skeletal distribution. Acidic catalysts such as molecular sieves are used in both alkylation and dealkylation. The reactions may be carried out in either straight pass fixed beds or in catalytic distillation reactors.

    摘要翻译: C4-C15烯烃的异构化方法,其通过在烷基化条件下使C4至C15烯烃(具有第一骨架分布)与芳族化合物反应以产生烷基化芳族产物,在烷基化芳族产物在脱烷基化条件下脱烷基化以产生 包含所述芳族化合物和烯烃的脱烷基化产物,所述烯烃对应于烷基化中的烯烃并具有不同于所述第一骨架分布的第二骨架分布。 酸性催化剂如分子筛用于烷基化和脱烷基化。 反应可以在直通固定床或催化蒸馏反应器中进行。

    PROCESS FOR THE TREATMENT OF LIGHT NAPHTHA HYDROCARBON STREAMS
    4.
    发明公开
    PROCESS FOR THE TREATMENT OF LIGHT NAPHTHA HYDROCARBON STREAMS 审中-公开
    治疗方法LEICHTNAPHTA烃流

    公开(公告)号:EP1563038A1

    公开(公告)日:2005-08-17

    申请号:EP03754639.7

    申请日:2003-09-16

    IPC分类号: C10G45/00 C10G65/02

    CPC分类号: C10G45/02 C10G2400/02

    摘要: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.

    PROCESS AND APPARATUS FOR CATALYTIC DISTILLATIONS
    6.
    发明授权
    PROCESS AND APPARATUS FOR CATALYTIC DISTILLATIONS 有权
    方法和装置催化蒸馏

    公开(公告)号:EP1513791B1

    公开(公告)日:2011-06-15

    申请号:EP03733858.9

    申请日:2003-04-16

    摘要: A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillation structure in at least one of the separate vertical sections of the divided wall column where concurrently: (1) a first component alone or with a second component is contacted with a catalytic distillation structure in a distillation reaction zone thereby catalytically reacting at least a portion of the first component with itself or with the second component to form a product and (2) a first mixture comprising the first component and the product or the first component, the second component and the product; and withdrawing the product from the distillation column reactor; while within the column concurrently with the catalytic reaction and fractionation a second mixture is fractionated, which contains the first component and the product or first and second components (if a second component is present) and the product in a parallel and separate distillation non reaction zone to fractionate the product and withdrawing the product from said distillation non reaction zone. For example, tertiary amyl methyl ether may be prepared by reacting methanol with isoamylene in a C5 stream utilizing a distillation column reactor wherein the distillation column reactor comprises one side of a divided wall column. On one side the product, tertiary amyl methyl ether, is separated from the unreacted methanol and C5's and on the other side the remaining isoamylenes are reacted with methanol and a separation of the tertiary amyl methyl ether and C5's from the methanol/C5 azeotrope is effected.

    METHOD OF PRODUCING TERTIARY AMYL ETHYL ETHER
    10.
    发明公开
    METHOD OF PRODUCING TERTIARY AMYL ETHYL ETHER 有权
    用于生产TERT戊基乙基醚

    公开(公告)号:EP2197825A2

    公开(公告)日:2010-06-23

    申请号:EP08798613.9

    申请日:2008-08-25

    IPC分类号: C07C41/05 C07C43/03

    摘要: A process for the production of tertiary ethers, including: feeding a hydrocarbon stream comprising isoolefins and propionitrile to a distillation column reactor system containing at least one etherification reaction zone; feeding a C2 to C6 monoalcohol or mixture thereof to the distillation column reactor; concurrently in the distillation column reactor system: reacting a portion of the isoolefins with a portion of the alcohols to form a tertiary ether; and separating the tertiary ether from unreacted isoolefins; withdrawing the tertiary ether and propionitrile from the distillation column reactor system as a bottoms; withdrawing the unreacted isoolefins from the distillation column reactor system as an overheads; and operating the distillation column reactor system such that the etherification reaction zone is substantially free of propionitrile.