Abstract: Disclosed is a method of producing hydrogen from oxygenated hydrocarbon reactants, such as methanol, glycerol, sugars (e.g. glucose and xylose), or sugar alcohols (e.g. sorbitol). The method takes place in the condensed liquid phase. The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon 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. The disclosed method can be run at lower temperatures than those used in the conventional steam reforming of alkanes.

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: Disclosed is a method of producing hydrogen 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. 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 VIII transitional metals, alloys thereof, and mixtures thereof. The disclosed method can be run at lower temperatures than those used in the conventional steam reforming of alkanes.

Abstract: Disclosed is a method of producing hydrogen 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. 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 VIII transitional metals, alloys thereof, and mixtures thereof. The disclosed method can be run at lower temperatures than those used in the conventional steam reforming of alkanes.

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: Disclosed is a method of producing hydrogen from oxygenated hydrocarbon reactants, such as methanol, glycerol, sugars (e.g. glucose and xylose), or sugar alcohols (e.g. sorbitol). The method takes place in the condensed liquid phase. The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon 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. The disclosed method can be run at lower temperatures than those used in the conventional steam reforming of alkanes.

Abstract: Disclosed is a method of producing hydrogen 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. 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 VIII transitional metals, alloys thereof, and mixtures thereof. The disclosed method can be run at lower temperatures than those used in the conventional steam reforming of alkanes.

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: 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: 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: A new catalyst for the selective conversion of isobutane to isobutylene. This catalyst also could be applied to the selective dehydrogenation of other light paraffins such as propane and n-butane. The catalyst is comprised of platinum, tin, and potassium supported on K--L-zeolite. This catalyst exhibits greater than 98% selectivity for conversion of isobutane to isobutylene at isobutane conversion levels greater than 50%. In addition, this catalyst exhibits excellent stability. The preferred catalyst would have an atomic ratio of Sn to Pt greater than 1.0 as well as an atomic ratio of K to Pt greater than 1.0.