HYDROTHERMAL HYDROCATALYTIC TREATMENT OF BIOMASS

• Main Authors: JOHNSON, KIMBERLY ANN, KOMPLIN, GLENN CHARLES, POWELL, JOSEPH BROUN, SMEGAL, JOHN ANTHONY
• Format: Patent
• Language: English; French
• Published: 20.12.2012
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; CRACKING HYDROCARBON OILS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; MINERAL WAXES; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

A method of hydrothermal hydrocatalytic treating biomass is provided. Lignocellulosic biomass is treated with a digestive solvent to form a pretreated biomass containing soluble carbohydrates. The pretreated biomass is contacted, with hydrogen at a temperature in the range of 150°C to less than 300°C in the presence of a pH buffering agent and a supported hydrogenolysis catalyst containing (a) sulfur, (b) Mo or W, and (c) Co, Ni or mixture thereof, incorporated into a suitable support, to form a plurality of oxygenated hydrocarbons. L'invention concerne un procédé de traitement hydrocatalytique hydrothermique d'une biomasse. Une biomasse lignocellulosique est traitée par un solvant de digestion pour former une biomasse prétraitée contenant des glucides solubles. La biomasse prétraitée est mise en contact avec de l'hydrogène à une température se situant dans la plage de 150°C à moins de 300°C en présence d'un agent tampon pH et un catalyseur d'hydrogénolyse supporté contenant : (a) du soufre, (b) Mo ou W et (c) Co, Ni ou un mélange de ceux-ci, incorporés dans un support approprié, pour former une pluralité d'hydrocarbures oxygénés.