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116 条记录 (耗时 0.039 秒)

    Integrated process for preparing a carboxylic acid from an alkane
    91.
    发明申请
    Integrated process for preparing a carboxylic acid from an alkane 审中-公开
    从烷烃制备羧酸的综合方法

    公开(公告)号：US20100029975A1

    公开(公告)日：2010-02-04

    申请号：US12459970

    申请日：2009-07-10

    申请人： Scott Han ,  Wolfgang Ruettinger ,  Douglass W. Sevon

    发明人： Scott Han ,  Wolfgang Ruettinger ,  Douglass W. Sevon

    IPC分类号： C07C253/00 ,  C07C51/16

    CPC分类号： C07C51/252 ,  Y02P20/125 ,  Y02P20/51 ,  Y02P20/582 ,  C07C57/04

    摘要： The present invention relates to an integrated process for producing unsaturated carboxylic acids from the corresponding C2-C4 alkane. The process begins with integrated catalytic reactions comprising endothermic soft oxidant conversion (SOC) and exothermic selective hydrogen combustion (SHC) which cumulatively convert a C2-C4 alkane to its corresponding C2-C4 alkene in a product stream substantially free of hydrogen. Heat from the exothermic selective hydrogen combustion reaction zone is recovered and recycled back upstream to the endothermic soft oxidant conversion reaction zone. The hydrogen-free alkene products of the thermally integrated SOC/SHC reactions are then provided to a catalytic vapor phase partial oxidation process for conversion of the alkene to the corresponding unsaturated carboxylic acid or nitrile. Unreacted alkene and carbon dioxide are recovered from the oxidation product stream and recycled back to the thermally integrated soft oxidant conversion reactions.

    摘要翻译： 本发明涉及从相应的C 2 -C 4烷烃制备不饱和羧酸的综合方法。 该过程开始于包括吸热软氧化剂转化（SOC）和放热选择性氢燃烧（SHC）的综合催化反应，其在基本上不含氢的产物流中将C 2 -C 4烷烃累加转化成其相应的C 2 -C 4烯烃。 来自放热选择性氢燃烧反应区的热量被回收并循环回到吸热软氧化剂转化反应区的上游。 然后将热集成的SOC / SHC反应的无氢烯烃产物提供到用于将烯烃转化成相应的不饱和羧酸或腈的催化气相部分氧化方法。 从氧化产物流中回收未反应的烯烃和二氧化碳，并循环回热积分的软氧化剂转化反应。

    Process for the selective (AMM) oxidation of lower molecular weight alkanes and alkenes
    93.
    发明申请
    Process for the selective (AMM) oxidation of lower molecular weight alkanes and alkenes 有权
    低分子量烷烃和烯烃的选择性（AMM）氧化方法

    公开(公告)号：US20080154056A1

    公开(公告)日：2008-06-26

    申请号：US11985671

    申请日：2007-11-16

    申请人： Anne Mae Gaffney ,  Scott Han

    发明人： Anne Mae Gaffney ,  Scott Han

    IPC分类号： C07C51/16 ,  C07C255/07 ,  C07C255/03

    CPC分类号： C07C253/24 ,  C07C51/215 ,  C07C51/252 ,  C07C51/43 ,  Y02P20/52 ,  Y02P20/582 ,  C07C57/04 ,  C07C255/08

    摘要： An improved process for the production of unsaturated carboxylic acids and unsaturated nitriles from their corresponding C3 to C5 alkanes, or mixtures of C3 to C5 alkanes and alkenes, that involves oxidation in the presence of a supported Mo-V-based mixed metal oxide catalyst in a multi-stage reaction system which employs both separation of the oxidation product from one or more intermediate effluent streams, as well as feeding additional oxygen to reaction zones subsequent to the first reaction zone.

    摘要翻译： 用于从相应的C 3至C 5烷烃生产不饱和羧酸和不饱和腈的改进方法，或C 3 - 3 - 的混合物与 C 5烷烃和烯烃，其包括在多阶段反应体系中在负载的Mo-V基混合金属氧化物催化剂存在下进行氧化，该多级反应体系采用将氧化产物从一种或多种 中间流出物流，以及在第一反应区之后的反应区域中加入额外的氧气。