Processes and apparatuses for production of butadiene

    公开(公告)号:US10155704B2

    公开(公告)日:2018-12-18

    申请号:US15789934

    申请日:2017-10-20

    摘要: Processes and apparatuses for the production of butadienes are provided. In an embodiment, a process for production of butadienes includes passing a reactor feed stream comprising a hydrocarbon stream comprising butene, a steam stream and a oxygen rich stream to a dehydrogenation reactor. The reactor feed stream is oxidatively dehydrogenated in the dehydrogenation reactor in presence of an oxidative dehydrogenation catalyst to provide an effluent stream comprising butadiene. The effluent stream is cooled in a quench tower to provide a cooled effluent stream and a bottoms water stream. The cooled effluent stream is passed to an aldehyde scrubber to provide a scrubbed effluent stream and a spent water stream comprising aldehydes. A first portion of the bottoms water stream is passed from the quench tower to the aldehyde scrubber.

    PROCESSES AND APPARATUSES FOR PRODUCTION OF BUTADIENE

    公开(公告)号:US20180037523A1

    公开(公告)日:2018-02-08

    申请号:US15789934

    申请日:2017-10-20

    IPC分类号: C07C5/48 C07C7/11 C07C7/00

    摘要: Processes and apparatuses for the production of butadienes are provided. In an embodiment, a process for production of butadienes includes passing a reactor feed stream comprising a hydrocarbon stream comprising butene, a steam stream and a oxygen rich stream to a dehydrogenation reactor. The reactor feed stream is oxidatively dehydrogenated in the dehydrogenation reactor in presence of an oxidative dehydrogenation catalyst to provide an effluent stream comprising butadiene. The effluent stream is cooled in a quench tower to provide a cooled effluent stream and a bottoms water stream. The cooled effluent stream is passed to an aldehyde scrubber to provide a scrubbed effluent stream and a spent water stream comprising aldehydes. A first portion of the bottoms water stream is passed from the quench tower to the aldehyde scrubber.

    Solvent recycle from heavies removal column

    公开(公告)号:US10584081B2

    公开(公告)日:2020-03-10

    申请号:US15588906

    申请日:2017-05-08

    申请人: UOP LLC

    IPC分类号: C07C5/333 B01D3/00 C07C2/56

    摘要: A process is presented for the recovery of solvent used in an alkylation process. The solvent removes heavy hydrocarbons from a C4 stream. The C4 stream is passed to an alkylation unit to generate an alkylate product. A portion of the solvent is carried over with the C4 stream and needs to be recovered to reduce the aromatics content in the C4 stream, to reduce any deleterious effects of the aromatics in downstream processing.

    PROCESS FOR THE PRODUCTION OF JET-RANGE HYDROCARBONS
    10.
    发明申请
    PROCESS FOR THE PRODUCTION OF JET-RANGE HYDROCARBONS 审中-公开
    生产喷射式烃类的方法

    公开(公告)号:US20160312134A1

    公开(公告)日:2016-10-27

    申请号:US14695328

    申请日:2015-04-24

    申请人: UOP LLC

    IPC分类号: C10G69/12 C10L1/04 C10G50/00

    摘要: A method for producing jet-range hydrocarbons includes passing a renewable olefin feedstock comprising C3 to C8 olefins to an oligomerization reactor containing a zeolite catalyst to produce an oligomerized effluent, separating the oligomerized effluent into at least a light stream, and a heavy olefin stream. At least a first portion of the heavy olefin stream is recycled to the oligomerization reactor to dilute the renewable olefin feedstock. portion of heavy olefin stream may be hydrogenated and separated to provide a jet range hydrocarbon product.

    摘要翻译: 用于生产喷射范围烃的方法包括将包含C3至C8烯烃的可再生烯烃原料通入含有沸石催化剂的低聚反应器以产生低聚流出物,将低聚流出物分离成至少轻质流和重质烯烃流。 将至少第一部分重质烯烃流再循环到低聚反应器中以稀释可再生烯烃原料。 部分重质烯烃流可以被氢化和分离以提供喷射范围的烃产物。