利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.013 秒)

    Oxidative coupling of methane
    2.
    发明授权
    Oxidative coupling of methane 有权

    公开(公告)号：US11117848B2

    公开(公告)日：2021-09-14

    申请号：US16500249

    申请日：2018-04-09

    申请人： SHELL OIL COMPANY

    发明人： Georgios Mitkidis

    IPC分类号： C07C2/84 ,  B01D53/14 ,  B01D53/22 ,  B01D3/14 ,  B01D53/047 ,  C07C7/00 ,  C07C7/04 ,  C07C7/12 ,  C07C7/144

    摘要： The present invention relates to a process for oxidative coupling of methane (OCM), comprising the steps of: (a) contacting, in a reactor, oxygen and methane with an OCM catalyst, resulting in a reactor effluent comprising ethylene, ethane, methane, carbon dioxide and water; (b) cooling the reactor effluent to obtain a liquid stream comprising water and a gas stream comprising ethylene, ethane, methane and carbon dioxide; (c) removing carbon dioxide from at least a part of the gas stream comprising ethylene, ethane, methane and carbon dioxide resulting in a gas stream comprising ethylene, ethane and methane; (d) passing at least a part of the gas stream comprising ethylene, ethane and methane as obtained in step (c) through a membrane, preferably a membrane comprising metal cations, more preferably a membrane comprising silver (I) ions (Ag+ ions) or copper (I) ions (Cu+ ions), to obtain a stream comprising ethane and a stream comprising ethylene.

    Gas clean-up for alkane oxidative dehydrogenation effluent
    3.
    发明授权
    Gas clean-up for alkane oxidative dehydrogenation effluent 有权

    公开(公告)号：US11078134B2

    公开(公告)日：2021-08-03

    申请号：US16486535

    申请日：2018-02-20

    申请人： SHELL OIL COMPANY

    发明人： Georgios Mitkidis ,  Guus Van Rossum ,  Maria San Roman Macia ,  Ronald Jan Schoonebeek ,  Michael Johannes Franciscus Maria Verhaak

    IPC分类号： C07C5/48 ,  B01J23/00 ,  B01J23/80 ,  B01J35/00 ,  B01J35/02

    摘要： The invention relates to a process for the production of an alkene by alkane oxidative dehydrogenation, comprising: (a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a catalyst comprising a mixed metal oxide, resulting in a stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne; (b) removing water from at least part of the stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne resulting from step (a), resulting in a stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne; (c) removing unconverted oxygen, carbon monoxide and optionally alkyne from at least part of the stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne resulting from step (b), wherein carbon monoxide and optionally alkyne are oxidized into carbon dioxide, resulting in a stream comprising alkene, unconverted alkane and carbon dioxide; (d) optionally removing carbon dioxide from at least part of the stream comprising alkene, unconverted alkane in and carbon dioxide resulting from step (c), resulting in a stream comprising alkene and unconverted alkane; (e) optionally separating at least part of the stream comprising alkene and unconverted alkane resulting from step (d), into a stream comprising alkene and a stream comprising unconverted alkane; (f) optionally recycling unconverted alkane from at least part of the stream comprising unconverted alkane resulting from step (e), to step (a).