Patent ID: 8642813
Filing Date: 2014-02-04
Classification: B01J,C07B,C07C,C08B,C10G,C13K,Y02P

Abstract:
1. A method of converting a biomass slurry comprising water and a biomass component that is insoluble in water to lower molecular weight oxygenated hydrocarbons, the method comprising: catalytically reacting the biomass slurry with hydrogen and a heterogeneous liquefaction catalyst at a liquefaction temperature and a liquefaction pressure to produce a product stream comprising the liquefaction catalyst, extractives and an aqueous solution comprising lower molecular weight oxygenated hydrocarbons; separating the liquefaction catalyst and extractives from the product stream to provide a liquid stream comprising lower molecular weight oxygenated hydrocarbons; washing the liquefaction catalyst in a washing medium; regenerating the liquefaction catalyst in a regenerant gas at a regenerating pressure and regenerating temperature wherein carbonaceous deposits are removed from the liquefaction catalyst; and reintroducing the liquefaction catalyst to the biomass slurry.