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    Process to produce linear pentenes and metathesis thereof
    1.
    发明授权
    Process to produce linear pentenes and metathesis thereof 有权
    生产线性戊烯和复分解的方法

    公开(公告)号：US09499458B2

    公开(公告)日：2016-11-22

    申请号：US14069737

    申请日：2013-11-01

    Applicant: Lummus Technology Inc.

    Inventor： Bala Ramachandran ,  Sukwon Choi

    IPC: C07C6/04 ,  C07C41/06 ,  C07C7/148

    CPC classification number: C07C6/04 ,  B01J19/245 ,  C07C1/20 ,  C07C5/2767 ,  C07C7/14891 ,  C07C41/06 ,  Y02P20/127 ,  C07C11/10 ,  C07C11/06 ,  C07C43/046

    Abstract: Mixed pentenes may be converted to propylene by feeding an alcohol, linear pentenes, and isopentenes to an etherification reactor. The alcohol and isopentenes may be reacted in the etherification reactor to convert isopentenes to tertiary amyl alkyl ether, which may be separated from the linear pentenes, recovered as a linear pentene fraction. The tertiary amyl alkyl ether may be fed to a decomposition reactor to convert at least a portion of the tertiary amyl alkyl ether to alcohol and isopentenes. The alcohol and isopentenes may then be separated to recover an isopentene fraction and an alcohol fraction. The isopentene fraction is then fed to a skeletal isomerization reactor to convert at least a portion of the isopentenes to linear pentenes, the effluent from which may be recycled to the etherification reactor. Ethylene and the linear pentene fraction may then be to a metathesis reactor to produce propylene.

    Abstract translation: 混合的戊烯可以通过将醇，线性戊烯和异戊烯加入到醚化反应器中而转化成丙烯。 醇和异戊烯可以在醚化反应器中反应，以将异戊烯转化成叔戊基烷基醚，其可与线性戊烯分离，作为线性戊烯馏分回收。 叔戊基烷基醚可以进料到分解反应器中以将至少一部分叔戊基烷基醚转化为醇和异戊烯。 然后可以分离醇和异戊烯以回收异戊烯馏分和醇馏分。 然后将异戊烯级分进料到骨架异构化反应器中以将至少一部分异戊烯转化为线性戊烯，其中可将其流出物再循环至醚化反应器。 然后可以将乙烯和线性戊烯馏分转移到复分解反应器以产生丙烯。

    Olefin conversion process
    2.
    发明授权
    Olefin conversion process 有权

    公开(公告)号：US10676411B2

    公开(公告)日：2020-06-09

    申请号：US15792160

    申请日：2017-10-24

    Applicant: Lummus Technology Inc.

    Inventor： Sukwon Choi ,  Bala Ramachandran

    IPC: B01J8/04 ,  C07C6/04 ,  C07C5/25 ,  C07C11/06 ,  C07C11/08 ,  C07C11/10

    Abstract: Processes for the production of olefins are disclosed, which may include: contacting a hydrocarbon mixture comprising linear butenes with an isomerization catalyst to form an isomerization product comprising 2-butenes and 1-butenes; contacting the isomerization product with a first metathesis catalyst to form a first metathesis product comprising 2-pentene and propylene, as well as any unreacted C4 olefins, and byproducts ethylene and 3-hexene; and fractionating the first metathesis product to form a C3-fraction and a C5 fraction comprising 2-pentene. The 2-pentene may then be advantageously used to produce high purity 1-butene, 3-hexene, 1-hexene, propylene, or other desired products.

    OLEFIN CONVERSION PROCESS
    5.
    发明申请
    OLEFIN CONVERSION PROCESS 审中-公开
    OLEFIN转换过程

    公开(公告)号：US20150141722A1

    公开(公告)日：2015-05-21

    申请号：US14548509

    申请日：2014-11-20

    Applicant: Lummus Technology Inc.

    Inventor： Bala Ramachandran ,  Sukwon Choi

    IPC: C07C6/04 ,  B01J8/04 ,  C07C5/25 ,  B01J8/00

    CPC classification number: C07C6/04 ,  B01J8/0453 ,  B01J2208/025 ,  B01J2219/00006 ,  C07C5/2512 ,  C07C11/02 ,  C07C11/08

    Abstract: Processes for the production of high purity alpha olefins from a mixture of olefins are disclosed. The processes may include: contacting propylene and a hydrocarbon mixture comprising a mixture of olefins having a carbon number n with a first metathesis catalyst to form a metathesis product comprising a beta-olefin having a carbon number n+1, an alpha-olefin having a carbon number n−1, as well as any unreacted propylene and olefins having a carbon number n. The metathesis product may be fractionated to recover a fraction comprising the beta-olefin having a carbon number n+1. Ethylene and the fraction comprising the beta-olefin having a carbon number n+1 may then be contacted with a second metathesis catalyst to form a second metathesis product comprising an alpha-olefin having a carbon number n and propylene, which may be fractionated to form a propylene fraction and a fraction comprising the alpha olefin having a carbon number n.

    Abstract translation: 公开了从烯烃混合物生产高纯度α-烯烃的方法。 所述方法可以包括：使丙烯和包含碳数为n的烯烃​​混合物的烃混合物与第一复分解催化剂接触以形成包含碳数为n + 1的β-烯烃的复分解产物，具有碳原子数为n + 碳数n-1，以及任何未反应的丙烯和碳数为n的烯烃​​。 复分解产物可以分馏以回收包含碳数为n + 1的β-烯烃的级分。 然后可以将乙烯和包含碳数为n + 1的β-烯烃的馏分与第二复分解催化剂接触以形成包含碳数为n的α-烯烃和丙烯的第二复分解产物，其可以分馏以形成 丙烯馏分和包含碳数为n的α-烯烃的馏分。

    Olefin conversion process
    7.
    发明授权
    Olefin conversion process 有权

    公开(公告)号：US09598331B2

    公开(公告)日：2017-03-21

    申请号：US14548509

    申请日：2014-11-20

    Applicant: Lummus Technology Inc.

    Inventor： Bala Ramachandran ,  Sukwon Choi

    IPC: C07C6/04 ,  C07C6/02 ,  C07C5/25 ,  B01J8/04

    CPC classification number: C07C6/04 ,  B01J8/0453 ,  B01J2208/025 ,  B01J2219/00006 ,  C07C5/2512 ,  C07C11/02 ,  C07C11/08

    Abstract: Processes for the production of high purity alpha olefins from a mixture of olefins are disclosed. The processes may include: contacting propylene and a hydrocarbon mixture comprising a mixture of olefins having a carbon number n with a first metathesis catalyst to form a metathesis product comprising a beta-olefin having a carbon number n+1, an alpha-olefin having a carbon number n−1, as well as any unreacted propylene and olefins having a carbon number n. The metathesis product may be fractionated to recover a fraction comprising the beta-olefin having a carbon number n+1. Ethylene and the fraction comprising the beta-olefin having a carbon number n+1 may then be contacted with a second metathesis catalyst to form a second metathesis product comprising an alpha-olefin having a carbon number n and propylene, which may be fractionated to form a propylene fraction and a fraction comprising the alpha olefin having a carbon number n.

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