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

    Abstract: 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)

    Abstract translation: 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,

    Synthesis of zeolite crystals and formation of carbon nanostructures in patterned structures
    3.
    发明授权
    Synthesis of zeolite crystals and formation of carbon nanostructures in patterned structures 有权
    沸石晶体的合成和在图案化结构中形成碳纳米结构

    公开(公告)号:US07790600B2

    公开(公告)日:2010-09-07

    申请号:US12358063

    申请日:2009-01-22

    CPC classification number: B82Y40/00 B82Y30/00 C01B32/16

    Abstract: A method is provided for incorporating zeolite crystals in patterned structures, the zeolite crystals having pores (channels) with an orientation which is defined by the topology of the zeolite crystal type and the geometry of the patterned structure, resulting in pores parallel with the length axis of the patterned structures. The patterned structures may be vias (vertical contacts) and trenches (horizontal lines) in a semiconductor substrate. These zeolite crystals can advantageously be used for dense and aligned nanocarbon growth or in other words growth of carbon nanostructures such as carbon nanotubes (CNT) within the pores of the zeolite structure. The growth of CNT is achieved within the porous structure of the zeolite crystals whereby the pores can be defined as confined spaces (channels) in nanometer dimensions acting as a micro-reactor for CNT growth. A method for growing carbon nanostructures within zeolite crystals is also provided, by adding, after creation of the zeolite crystals, a novel compound within the porous structure of the zeolite crystals whereby said novel compound is acting as a carbon source to create the carbon nanostructures. The improved growth method gives a significantly higher carbon density (yield) compared to state of the art techniques.

    Abstract translation: 提供了一种在图案化结构中引入沸石晶体的方法,沸石晶体具有孔(通道),其取向由沸石晶体类型的拓扑结构和图案化结构的几何形状限定,导致孔与长度轴平行 的图案结构。 图案化结构可以是半导体衬底中的通孔(垂直接触)和沟槽(水平线)。 这些沸石晶体可以有利地用于致密和对准的纳米碳生长,或者换句话说,可以用于碳纳米结构如沸石结构孔隙内的碳纳米管(CNT)的生长。 在沸石晶体的多孔结构内实现CNT的生长,由此孔可以被定义为用作CNT生长的微反应器的纳米尺度的密闭空间(通道)。 还提供了在沸石晶体内生长碳纳米结构的方法,通过在沸石晶体生成之后,在沸石晶体的多孔结构内加入新的化合物,由此所述新化合物作为碳源用于产生碳纳米结构。 与现有技术相比,改进的生长方法提供了显着更高的碳密度(产率)。

    Process for the selective oxidation of methane
    8.
    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

    Abstract: 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).

    Abstract translation: 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 Making Crystalline Metallosilicates
    9.
    发明申请
    Process for Making Crystalline Metallosilicates 审中-公开
    制备结晶金属硅酸盐的方法

    公开(公告)号:US20110124934A1

    公开(公告)日:2011-05-26

    申请号:US12994570

    申请日:2009-02-24

    Abstract: The present invention provides a method for preparing a metallosilicate of MFI type, wherein organic templates, seeding techniques, using low aliphatic alcohols miscible with water or homogeneous starting solutions are not required.The present invention relates to a process for making a crystalline metallosilicate with high Si/Metal ratio comprising:a) providing an aqueous medium comprising OH− anions and a metal source, b) providing an aqueous medium comprising an inorganic water insoluble source of silicon, c) optionally providing a non aqueous liquid medium comprising optionally an organic source of silica, d) mixing the medium a), b) and the optional c) at conditions effective to crystallize the desired metallosilicate, e) recovering the desired metallosilicate, wherein in the mixture a)+b)+c), before crystallization, the ratio Si org/Si inorganic is

    Abstract translation: 本发明提供了一种制备MFI型金属硅酸盐的方法,其中不需要使用与水混合的低脂肪醇或均相起始溶液的有机模板,接种技术。 本发明涉及一种制备具有高Si ​​/金属比的结晶金属硅酸盐的方法,其包括:a)提供包含OH-阴离子和金属源的水性介质,b)提供包含无机水不溶性硅源的水性介质, c)任选地提供包含任选的二氧化硅有机源的非水液体培养基,d)在有效使结晶期望的金属硅酸盐的条件下混合培养基a),b)和任选的c),e)回收所需的金属硅酸盐,其中 混合物a)+ b)+ c),在结晶之前,Si org / Si无机物的比例<0.3,有利地<0.2,优选为0,OH- / SiO 2的摩尔比为至少0.3,有利地为0.3至0.62, 优选为0.31〜0.61,更优选为0.32〜0.61,非常优选为0.33〜0.6,基本上不存在模板。 在另一个实施方案中,在回收所需的金属硅酸盐之前,插入步骤e),f)和g)步骤:e)将反应混合物a)+ b)+ c)冷却至约室温,f)将反应混合物的pH降低 至少0.1,优选0.3至4,更优选0.5至3,g)使所得到的步骤f)的混合物在有效继续所需金属硅酸盐结晶的条件下进行。

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