Process for the oxidative coupling of methane to higher hydrocarbons
    1.
    发明授权
    Process for the oxidative coupling of methane to higher hydrocarbons 失效
    将甲烷氧化成高级烃的方法

    公开(公告)号:US5132482A

    公开(公告)日:1992-07-21

    申请号:US537703

    申请日:1990-06-14

    IPC分类号: C07C2/84

    摘要: An improvement in the process for the oxidative coupling of methane is provided. Typically, the reaction takes place in a reactor that includes a catalyst zone. A primary CH.sub.4 /O.sub.2 stream is fed into the entrance of the reactor and reacted at a temperature of 600.degree. C.-1000.degree. C. and a pressure of between 101 kPa and 800 kPa. The improvement comprises introducing an auxiliary oxygen stream directly into the catalyst zone and one or more points to thereby selectively increase the yield of C.sub.2+ products.

    摘要翻译: 提供了甲烷氧化偶联方法的改进。 通常,反应在包括催化剂区的反应器中进行。 将主CH 4 / O 2流送入反应器的入口,并在600℃-1000℃的温度和101kPa至800kPa的压力下反应。 改进包括将辅助氧气流直接引入催化剂区域和一个或多个点,从而选择性地提高C2 +产物的产率。

    Process for producing syngas and hydrogen from natural gas using a
membrane reactor
    2.
    发明授权
    Process for producing syngas and hydrogen from natural gas using a membrane reactor 失效
    使用膜反应器从天然气生产合成气和氢气的方法

    公开(公告)号:US5637259A

    公开(公告)日:1997-06-10

    申请号:US567102

    申请日:1995-12-04

    摘要: Novel procedures are described for the production of syngas fuel intermediates from abundantly available natural gas. The novel procedures include: (a) providing a double tubular hydrogen transfer reactor having an inner tubular wall defining a heated reaction zone containing a catalyst and an outer tubular wall defining an annular zone between the tubular walls, said inner tubular wall including a hydrogen semipermeable membrane portion adapted to permit diffusion of hydrogen therethrough from the reaction zone to the annular zone while being impervious to other gases, (b) passing through said catalytic reaction zone of a feedstock comprising a mixture of methane and oxygen or a mixture of methane and carbon dioxide or a mixture of methane, carbon dioxide and oxygen, (c) continuously removing from the reaction zone at least part of the hydrogen being formed by diffusion thereof through said hydrogen semipermeable membrane into said annular zone, (d) continuously removing diffused hydrogen from said annular zone and (e) continuously removing a product mixture of carbon monoxide and hydrogen from the reaction zone.

    摘要翻译: 描述了从丰富天然气生产合成气燃料中间体的新程序。 新的方法包括:(a)提供双管式氢转移反应器,其具有限定含有催化剂的加热反应区的内管壁和在管壁之间限定环形区的外管壁,所述内管壁包括氢半透膜 膜部分适于允许氢从反应区扩散到环形区,同时不渗透其它气体,(b)通过包含甲烷和氧气混合物或甲烷和碳的混合物的原料的所述催化反应区 二氧化碳或甲烷,二氧化碳和氧气的混合物,(c)从反应区域连续除去由其通过所述氢半透膜扩散进入所述环形区域而形成的氢的至少一部分,(d)从 所述环形区域和(e)从所述r连续除去一氧化碳和氢气的产物混合物 行动区。