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    Conversion of C2 hydrocarbons in the presence of methane
    2.
    发明授权
    Conversion of C2 hydrocarbons in the presence of methane 有权

    公开(公告)号：US11254882B2

    公开(公告)日：2022-02-22

    申请号：US16967230

    申请日：2019-01-18

    申请人： ExxonMobil Chemical Patents Inc.

    发明人： Paul F. Keusenkothen

    IPC分类号： C10G50/00 ,  B01J19/24 ,  B01J29/48 ,  C07C2/76 ,  C07C2/42 ,  C07C4/06

    摘要： A catalyst and corresponding methods of using a catalyst are provided that can be beneficial for conversion of paraffins into a product stream enriched in aromatics and/or methane while reducing or minimizing the content of ethane in the product stream. Such catalysts and methods can be useful, for example, for processing a raw gas, associated gas, tail gas, natural gas, or other type of methane-containing feed stream to convert C2+ hydrocarbons in the stream to heavier hydrocarbons and methane while reducing or minimizing content of ethane in the products from the conversion reaction. Such conversion can be useful for upgrading a methane-containing feed stream to have an energy content that is suitable for pipeline transport under one or more specifications for transport of natural gas. The catalyst and corresponding method can also be beneficial when used as a second stage catalyst in a configuration involving multiple conversion stages.

    DUAL STAGE LIGHT ALKANE CONVERSION TO FUELS
    4.
    发明申请
    DUAL STAGE LIGHT ALKANE CONVERSION TO FUELS 有权

    公开(公告)号：US20210122687A1

    公开(公告)日：2021-04-29

    申请号：US17076299

    申请日：2020-10-21

    申请人： PHILLIPS 66 COMPANY

    发明人： Jianhua Yao ,  Hong Xie ,  Jonathan Marda ,  Dhananjay Ghonasgi ,  Sourabh Pansare

    IPC分类号： C07C2/42 ,  C07C7/09 ,  C07C2/12 ,  B01J8/02 ,  B01J8/00

    摘要： A process and system for the conversion of a feedstock comprising C3-C5 light alkanes to a C5+ hydrocarbon product, for example, a BTX-rich hydrocarbon product, by performing the alkane activation (first-stage) and the oligomerization/aromatization (second-stage) in separate stages, which allows each conversion process to occur at optimal reaction conditions thus increasing the overall hydrocarbon product yield. The alkane activation or first-stage is operated at a higher temperature than the second-stage since light alkanes are much less reactive than light olefins. Since aromatization of olefins is more efficient at higher pressure, the second-stage is maintained at a higher pressure than the first-stage. Further, fixed-bed catalysts are used in each of the first-stage and the second-stage.