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    Process for In Situ Water Removal from an Oxidative Esterification Reaction Using a Coupled Reactor-Distillation System
    11.
    发明申请
    Process for In Situ Water Removal from an Oxidative Esterification Reaction Using a Coupled Reactor-Distillation System 审中-公开

    公开(公告)号：US20170247312A1

    公开(公告)日：2017-08-31

    申请号：US15521785

    申请日：2015-10-02

    Applicant: Dow Global Technologies LLC ,  ROHM AND HAAS COMPANY

    Inventor： Zubin B. Kuvadia ,  Kirk W. Limbach ,  Dmitri A. Kraptchetov ,  Mark A. Silvano

    IPC: C07C67/54 ,  B01D3/14 ,  C07C67/42

    Abstract: A process for continuously removing water in situ from an oxidative esterification reaction includes (a) conducting a first oxidative esterification reaction in a first reactor or reaction zone, wherein the total number of reactors or reaction zones is n and n is at least 2; (b) removing a crude product stream from the first reactor or reaction zone; (c) introducing the crude product stream to a distillation column to generate a column overheads stream and a column bottoms stream; (d) passing at least a portion of the columns bottoms stream to the product recovery zone; and (e) passing at least a portion of the column overheads stream to a subsequent reactor or reaction zone; and (f) repeating steps (a)-(e) for each subsequent reactor or reaction zone such that the number of distillation columns less than n, and wherein the at least a portion of the column overheads stream contains less than 1 weight percent (wt %) water based on the total weight of the at least a portion of the column overheads stream.

    METHODS AND SYSTEMS TO SEPARATE HYDROCARBON MIXTURES SUCH AS NATURAL GAS INTO LIGHT AND HEAVY COMPONENTS
    13.
    发明申请
    METHODS AND SYSTEMS TO SEPARATE HYDROCARBON MIXTURES SUCH AS NATURAL GAS INTO LIGHT AND HEAVY COMPONENTS 审中-公开

    公开(公告)号：US20200002622A1

    公开(公告)日：2020-01-02

    申请号：US16451821

    申请日：2019-06-25

    Applicant: Dow Global Technologies LLC

    Inventor： Ross E. Dugas ,  Zubin B. Kuvadia ,  Preshit Dandekar

    IPC: C10G5/06 ,  C10G5/02 ,  F25J1/00 ,  F25J3/06

    Abstract: The present invention provides strategies to integrate adsorption and liquefaction techniques to separate hydrocarbon feed mixtures into purified light and heavy components, respectively. Initially, the hydrocarbon stream is separated into a light and heavy stream. The light stream can be integrated into a natural gas product. The heavy stream is partially liquefied. A first gas liquid separation of the partially liquefied heavy stream at an elevated pressure separates the liquid heavy stream from a methane-containing gas. The rejected methane component, which generally will include some rejected C2 and C3+ material, can be recycled to be combined with the feed mixture for re-processing. A further aspect of the strategy is then to practice at least one additional gas-liquid separation of the separated liquid heavy stream at a lower pressure effective to help further resolve the liquid heavy stream from C2-containing gas. The rejected C2 component, which generally will include some rejected C1 and C3+ material, can then be recycled back into the feed mixture for reprocessing or used as all or a portion of a light hydrocarbon product.

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