Abstract: A process for the hydrogenation or hydrogenolysis of an oxygenate is disclosed. The process takes place in a reactor in the presence of a catalyst, hydrogen and liquid water and the catalyst comprises one or more elements from Groups 8 to 11 of the periodic table dispersed on a hydrothermally stable oxide support.

Abstract: The invention provides a catalyst system comprising: a) one or more Group 1 metal phosphotungstate-containing species; and b) one or more catalytic species suitable for hydrogenation; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor in the presence of a solvent and said catalyst system.

Abstract: Implementations of the disclosed subject matter provide a process for producing ethylene glycol and propylene glycol from a sorbitol feed which may include contacting the sorbitol feed with hydrogen in a reactor in the presence of a solvent and a bi-functional catalyst system. The bi-functional catalyst system may include a first catalyst comprising a copper compound, a zinc compound, and an additional metal compound and a second catalyst comprising sodium carbonate.

Abstract: The invention provides a catalyst system comprising: a) one or more silver tungstate-containing species; and b) one or more catalytic species suitable for hydrogenation, wherein the weight ratio of said one or more silver tungstate-containing species to the one or more catalytic species suitable for hydrogenation is greater than 2.5:1, on the basis of the total weight of the catalyst system; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor at a reactor temperature in the range of from 145 to 190° C. in the presence of a solvent and said catalyst system.

Abstract: Implementations of the disclosed subject matter provide a process for producing ethylene glycol and propylene glycol from a sorbitol feed which may include contacting the sorbitol feed with hydrogen in a reactor in the presence of a solvent and a bi-functional catalyst system. The bi-functional catalyst system may include a first catalyst comprising a copper compound, a zinc compound, and an additional metal compound and a second catalyst comprising sodium carbonate.

Abstract: Implementations of the disclosed subject matter provide a method for producing glycols from an anhydrosugar feed. The method may include contacting, in a reactor under hydrogenolysis conditions, the anhydrosugar feed with a bi-functional catalyst system. The bi-functional catalyst system may include a retro-Aldol catalyst and a hydrogenation catalyst. A product stream may be obtained from the first reactor including ethylene glycol and propylene glycol.

Abstract: The invention provides a process for the selective hydrogenation of glycolaldehyde in a process stream comprising glycolaldehyde and one or more monosaccharide in a solvent, said process comprising contacting the process stream with hydrogen in the presence of a hydrogenation catalyst composition at a temperature of no more than 150° C. and for a residence time of no more than 90 minutes.

Abstract: A catalytic process for the hydrogenation or hydrogenolysis of a reactant in a reactor in the presence of hydrogen and liquid water is disclosed. The catalyst is stable under hydrothermal conditions.

Abstract: The invention provides a catalyst system comprising: a) one or more Group 1 metal phosphotungstate-containing species; and b) one or more catalytic species suitable for hydrogenation; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor in the presence of a solvent and said catalyst system.

Abstract: The invention provides a catalyst system comprising: a) one or more silver tungstate-containing species; and b) one or more catalytic species suitable for hydrogenation, wherein the weight ratio of said one or more silver tungstate-containing species to the one or more catalytic species suitable for hydrogenation is greater than 2.5:1, on the basis of the total weight of the catalyst system; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor at a reactor temperature in the range of from 145 to 190 ° C. in the presence of a solvent and said catalyst system.

Abstract: The invention provides a catalyst system comprising: a) one or more catalytic species comprising silver and tungsten therein; and b) one or more catalytic species suitable for hydrogenation; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor in the presence of a solvent and said catalyst system.

Abstract: The invention provides a catalyst system comprising: a) one or more sodium metatungstate-containing species; and b) one or more catalytic species suitable for hydrogenation; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor in the presence of a solvent and said catalyst system.