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    • 7. 发明授权
    • Process for the selective oxidation of methane
    • 甲烷选择性氧化的方法
    • US08217206B2
    • 2012-07-10
    • US12669566
    • 2008-07-04
    • Hendrik De WinnePierre JacobsBert SelsWalter Vermeiren
    • Hendrik De WinnePierre JacobsBert SelsWalter Vermeiren
    • C07C27/10C07C29/48B01J19/00B01J8/00
    • C07C29/50B01J19/0093B01J19/02B01J19/242B01J19/249B01J2219/00085B01J2219/00159B01J2219/00826B01J2219/00873B01J2219/024B01J2219/0281B01J2219/2461B01J2219/2487C07C31/04
    • 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).
    • 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。
    • 9. 发明申请
    • Process to Make Olefins from Ethanol
    • US20110105815A1
    • 2011-05-05
    • US12864995
    • 2009-02-05
    • Delphine MinouxNikolai NesterenkoWalter VermeirenSander Van DonkGiacomo Grasso
    • Delphine MinouxNikolai NesterenkoWalter VermeirenSander Van DonkGiacomo Grasso
    • C07C1/24
    • C07C11/04C07C1/24C07C4/06C07C11/06
    • The present invention relates to a process for the conversion of ethanol to make essentially ethylene and propylene, comprising: a) introducing in a reactor (A) (also called the first low temperature reaction zone) a stream comprising ethanol, optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) in said reactor (A) at conditions effective to dehydrate at least a portion of the ethanol to essentially ethylene, c) recovering from said reactor an effluent comprising: essentially ethylene, minor amounts of various hydrocarbons, water, optionally unconverted ethanol and the optional inert component of step a), d) fractionating said effluent of step c) to remove water, unconverted ethanol, optionally the inert component, and optionally the whole or a part of the various hydrocarbons to get a stream (D) comprising essentially ethylene and optionally the inert component, e) introducing at least a part of said stream (D) mixed with a stream (D1) comprising olefins having 4 carbon atoms or more (C4+ olefins) in a OCP reactor (also called the second high temperature reaction zone) under the condition that the mixture (D)+(D1) comprises at least 10 wt % of C4+ olefins, f) contacting said stream comprising at least a part of (D) and the stream (D1) in said OCP reactor with a catalyst which is selective towards light olefins in the effluent, to produce an effluent with an olefin content of lower molecular weight than that of the feedstock, g) fractionating said effluent of step f) to produce at least an ethylene stream, a propylene stream and a fraction consisting essentially of hydrocarbons having 4 carbon atoms or more, optionally recycling ethylene in whole or in part at the inlet of the OCP reactor of step f), or at the inlet of the reactor (A) or in part at the inlet of the OCP reactor of step f) and in part at the inlet of the reactor (A), optionally recycling the fraction consisting essentially of hydrocarbons having 4 carbon atoms or more at the inlet of the OCP reactor.