NOVELTY - Producing low oxygen biomass-derived pyrolysis oil, comprises: reducing one or more of the solids content of biomass-derived pyrolysis oil to less than 0.10%, the total metal content to less than 100 ppm, and the water content to less than 20 wt.%, where the step of reducing the solids content, the metals content, and the water content produces a treated biomass-derived pyrolysis oil; and deoxygenating the treated biomass-derived pyrolysis oil.    USE - The method is useful for producing low oxygen biomass-derived pyrolysis oil.    ADVANTAGE - The method is environmentally friendly, and has improved hydroprocessing run times and processability of biomass-derived pyrolysis oil.    DETAILED DESCRIPTION - Producing low oxygen biomass-derived pyrolysis oil, comprises: reducing one or more of the solids content of biomass-derived pyrolysis oil to less than 0.10%, the total metal content to less than 100 ppm, and the water content to less than 20 wt.%, where the step of reducing the solids content, the metals content, and the water content produces a treated biomass-derived pyrolysis oil; and deoxygenating the treated biomass-derived pyrolysis oil (400); or producing low oxygen biomass-derived pyrolysis oil, comprising esterifying biomass-derived pyrolysis oil (300) to produce esterified biomass-derived pyrolysis oil, and deoxygenating the esterified biomass-derived pyrolysis oil; or reacting esterified treated biomass-derived pyrolysis oil at first hydroprocessing conditions in the presence of hydrogen-containing gas and a first catalyst to produce a partially deoxygenated biomass-derived pyrolysis oil and water, separating the water from the partially deoxygenated biomass-derived pyrolysis oil, and reacting the partially deoxygenated biomass-derived pyrolysis oil at second hydroprocessing conditions in the presence of additional hydrogen-containing gas and a second catalyst to convert residual oxygenated hydrocarbons in it, into hydrocarbons to produce a fully deoxygenated biomass-derived pyrolysis oil.    DESCRIPTION OF DRAWING(S) - The figure shows a flow diagram of method for producing low oxygen biomass-derived pyrolysis oil.    Providing biomass-derived pyrolysis oil (200)    Treating the pyrolysis oil (250)    Esterifying the biomass-derived pyrolysis oil (300)    Deoxygenating the treated biomass-derived pyrolysis oil (400)    Recycling a portion of the low oxygen biomass-derived pyrolysis oil. (500)