Process for the selective oxidation of methane
    1.
    发明授权
    Process for the selective oxidation of methane 失效
    甲烷选择性氧化的方法

    公开(公告)号:US08217206B2

    公开(公告)日:2012-07-10

    申请号:US12669566

    申请日:2008-07-04

    摘要: The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure; said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; and reacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and for valuable oxygenates. Advantageously the internal surface is made of quartz or coated with quartzAdvantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol.Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product.Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa.Advantageously the reactor is operated at a temperature from 300° C. to 600° C.Advantageously the reactor is operated at a residence time from 0.1 to 100 s.Advantageously the reactor is operated at a methane to oxygen molar ratio from 1 to 50.The present invention also relates to a reactor having an internal surface made of silica (advantageously quartz) or coated with silica (advantageously quartz).

    摘要翻译: 本发明是一种将甲烷转化成甲醇的方法,包括:在升高的压力下将甲烷和气态空气或富含氧的氧或气体空气送入反应器; 所述反应器具有由二氧化硅制成或涂覆有二氧化硅的内表面,所述内表面围绕所述气体反应的区域; 以及在有效产生甲醇和有价值的含氧化合物的条件下,在升高的温度下使所述反应区中的所述气体反应。 有利地,内表面由石英制成或用石英涂覆。有利的是,在将甲烷转化成甲醇之前,用HF处理由二氧化硅(有利的是石英)或用二氧化硅(有利的是石英)制成的内表面。 有利地,反应在所述反应区中不存在可测量地影响反应速率或产物收率的任何添加物质。 有利地,反应器在1至7.5MPa的压力下操作。 有利地,反应器在300℃至600℃的温度下操作。有利地,反应器在0.1至100秒的停留时间下运行。 有利地,反应器在甲烷与氧的摩尔比为1至50的范围内操作。本发明还涉及具有由二氧化硅(有利地为石英)或用二氧化硅(有利地为石英)涂覆的内表面的反应器。

    Process for the Selective Oxidation of Methane
    2.
    发明申请
    Process for the Selective Oxidation of Methane 失效
    甲烷选择性氧化工艺

    公开(公告)号:US20100280289A1

    公开(公告)日:2010-11-04

    申请号:US12669566

    申请日:2008-07-04

    摘要: The present invention is a process for converting methane to methanol, comprising: feeding methane and gaseous air or oxygen or gaseous air enriched with oxygen to a reactor under an elevated pressure;said reactor having an internal surface, made of silica or coated with silica, surrounding a zone in which said gases react; andreacting said gases in said reaction zone at an elevated temperature at conditions effective to produce methanol and for valuable oxygenates.Advantageously the internal surface is made of quartz or coated with quartzAdvantageously the internal surface, made of silica (advantageously quartz) or coated with silica (advantageously quartz), is treated with HF before the conversion of methane to methanol.Advantageously the reaction is carried out in the absence in said reaction zone of any added material which measurably affects the rate of the reaction or the yield of the product.Advantageously the reactor is operated under a pressure from 1 to 7.5 MPa.Advantageously the reactor is operated at a temperature from 300° C. to 600° C.Advantageously the reactor is operated at a residence time from 0.1 to 100 s.Advantageously the reactor is operated at a methane to oxygen molar ratio from 1 to 50.The present invention also relates to a reactor having an internal surface made of silica (advantageously quartz) or coated with silica (advantageously quartz)

    摘要翻译: 本发明是一种将甲烷转化成甲醇的方法,包括:在升高的压力下将甲烷和气态空气或富含氧的氧或气体空气送入反应器; 所述反应器具有由二氧化硅制成或涂覆有二氧化硅的内表面,所述内表面围绕所述气体反应的区域; 以及在有效产生甲醇和有价值的含氧化合物的条件下,在升高的温度下使所述反应区中的所述气体反应。 有利地,内表面由石英制成或用石英涂覆。有利的是,在将甲烷转化成甲醇之前,用HF处理由二氧化硅(有利的是石英)或用二氧化硅(有利的是石英)制成的内表面。 有利地,反应在所述反应区中不存在可测量地影响反应速率或产物收率的任何添加物质。 有利地,反应器在1至7.5MPa的压力下操作。 有利地,反应器在300℃至600℃的温度下操作。有利地,反应器在0.1至100秒的停留时间下运行。 有利地,反应器以甲烷与氧的摩尔比为1至50进行操作。本发明还涉及具有由二氧化硅(有利地为石英)或用二氧化硅(有利地为石英)涂覆的内表面的反应器,