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    Low-temperature hydrocarbon production from oxygenated hydrocarbons
    24.
    发明授权
    Low-temperature hydrocarbon production from oxygenated hydrocarbons 有权
    从含氧烃生产低温碳氢化合物

    公开(公告)号：US06953873B2

    公开(公告)日：2005-10-11

    申请号：US10435208

    申请日：2003-05-09

    Applicant: Randy D. Cortright ,  James A. Dumesic

    Inventor： Randy D. Cortright ,  James A. Dumesic

    IPC: C10L3/06 ,  C07C1/20 ,  C10G3/00 ,  C07C1/207

    CPC classification number: C10G3/48 ,  C07C1/20 ,  C07C2521/08 ,  C07C2523/42 ,  C10G3/46 ,  C10G3/47 ,  C10G3/49 ,  C10G2300/1011 ,  C10G2300/805 ,  Y02P30/20

    Abstract: Disclosed is a method of producing hydrocarbons from oxygenated hydrocarbon reactants, such as glycerol, glucose, or sorbitol. The method can take place in the vapor phase or in the condensed liquid phase (preferably in the condensed liquid phase). The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon having at least two carbon atoms, in the presence of a metal-containing catalyst. The catalyst contains a metal selected from the group consisting of Group VIIIB transitional metals, alloys thereof, and mixtures thereof. These metals are supported on supports that exhibit acidity or the reaction is conducted under liquid-phase conditions at acidic pHs. The disclosed method allows the production of hydrocarbon by the liquid-phase reaction of water with biomass-derived oxygenated compounds.

    Abstract translation: 公开了从氧化烃反应物如甘油，葡萄糖或山梨糖醇生产烃的方法。 该方法可以在气相或冷凝的液相（优选在冷凝的液相中）发生。 该方法包括在含金属的催化剂存在下使水与具有至少两个碳原子的水溶性氧化烃反应的步骤。 催化剂含有选自第VIIIB族过渡金属，其合金及其混合物的金属。 这些金属负载在显示酸性的载体上，或者反应在酸性pH下在液相条件下进行。 所公开的方法允许通过水与生物质衍生的氧化化合物的液相反应来生产烃。

    Method for catalytically reducing carboxylic acid groups to hydroxyl groups in hydroxycarboxylic acids
    25.
    发明授权
    Method for catalytically reducing carboxylic acid groups to hydroxyl groups in hydroxycarboxylic acids 有权
    在羟基羧酸中将羧酸基团催化还原成羟基的方法

    公开(公告)号：US06455742B1

    公开(公告)日：2002-09-24

    申请号：US09634825

    申请日：2000-08-09

    Applicant: Randy D. Cortright ,  James A. Dumesic

    Inventor： Randy D. Cortright ,  James A. Dumesic

    IPC: C07C29141

    CPC classification number: C07C29/149 ,  B01J23/72 ,  Y02P20/52 ,  C07C31/205 ,  C07C31/202

    Abstract: A method for catalytically reducing the carboxylic acid group of hydroxycarboxylic acids to a hydroxyl group is disclosed. An organic compound having an &agr;-hydroxyl group and at least one carboxylic acid group is contacted with a catalyst in the presence of hydrogen to yield a reduced product having at least two hydroxyl groups, the carboxylic acid group having been converted into one of the hydroxyl groups. The catalytic process may be conducted at hydrogen pressures of less than about 50 atm and is particularly suited for converting (&agr;-hydroxycarboxylic acids, such as lactic acid or glycolic acid, to 1,2-dihydroxy alkanes, such as 1,2-propanediol or ethylene glycol, using zero valent copper. The catalyst may be supported on silica, and the hydroxyl groups on the silica may be capped with hydrophobic groups including alkyl groups and silanes, such as trialkylsilanes.

    Abstract translation: 公开了将羟基羧酸的羧酸基团催化还原成羟基的方法。 具有α-羟基和至少一个羧酸基团的有机化合物在氢气存在下与催化剂接触，得到具有至少两个羟基的还原产物，该羧酸基已转化为羟基 团体 催化过程可以在小于约50大气压的氢气压力下进行，特别适用于将α-羟基羧酸如乳酸或乙醇酸转化为1,2-二羟基烷烃，如1,2-丙二醇 或乙二醇，使用零价铜，催化剂可以负载在二氧化硅上，二氧化硅上的羟基可以用包括烷基和硅烷的疏水基团如三烷基硅烷封端。

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