NOVELTY - Producing low oxygen biomass-derived pyrolysis oil, comprises (a) pyrolyzing (12) a carbonaceous biomass feedstock in the presence of a catalyst comprising base metal-based catalysts, noble metal-based catalysts, and/or treated zeolitic catalysts to produce pyrolysis gases comprising oxygenated hydrocarbons, and (b) condensing (16) a condensable portion of the pyrolysis gases to low oxygen biomass-derived pyrolysis oil.    USE - The method is useful for producing low oxygen biomass-derived pyrolysis oil.    ADVANTAGE - The method provides low oxygen biomass-derived pyrolysis oil with increased energy density, thermal stability and lower acidity.    DETAILED DESCRIPTION - Producing low oxygen biomass-derived pyrolysis oil, comprises: either (a) pyrolyzing (12) a carbonaceous biomass feedstock in the presence of a catalyst comprising base metal-based catalysts, noble metal-based catalysts, and/or treated zeolitic catalysts to produce pyrolysis gases comprising oxygenated hydrocarbons, the catalyst catalyzing a deoxygenation reaction converting at least a portion of the oxygenated hydrocarbons into hydrocarbons and oxygen and removing the oxygen as carbon oxides, and (b) condensing (16) a condensable portion of the pyrolysis gases to low oxygen biomass-derived pyrolysis oil; or (a1) providing the catalyst, (b1) contacting the carbonaceous biomass feedstock with the catalyst and pyrolyzing the carbonaceous biomass feedstock to form pyrolysis gases, and (c1) the step (b) as above per se. An INDEPENDENT CLAIM is included for thermally converting carbonaceous biomass feedstock into hydrocarbons comprising: (A) pyrolyzing the carbonaceous biomass feedstock in a pyrolysis reactor to form pyrolysis gases comprising oxygenated hydrocarbons and a carbon-containing solid; (B) separating the carbon-containing solid from the pyrolysis gases; and (C) deoxygenating (14) the oxygenated hydrocarbons by contacting the pyrolysis gases with the catalyst at conditions sufficient to convert the oxygenated hydrocarbons into hydrocarbons.    DESCRIPTION OF DRAWING(S) - The figure shows a flow chart of producing low oxygen biomass-derived pyrolysis oils.    Pyrolyzing a carbonaceous biomass feedstock in the presence of a catalyst (12)    Deoxygenating at least a portion of the oxygenated hydrocarbons in the pyrolysis gases (14)    Condensing a condensable portion of the pyrolysis gases to low oxygen biomass-derived pyrolysis oil. (16)