NOVELTY - Catalytic fractionation of lignin containing biomass for the production of non-pyrolytic bio-oil, involves the steps of: (a) subjecting preferably particulate lignocellulose material to a treatment at the temperature range of 130-300 degrees C, preferably 170-240 degrees C, in a solvent system; (b) removing the catalyst from the reaction mixture, preferably by magnetic forces; (c) filtering the reaction mixture to separate the raw non-pyrolytic bio-oil from the pulp; and optionally (d) removing the solvent system from the filtrate to concentrate the non-pyrolytic bio-oil.    USE - The process is useful for the catalytic fractionation of lignin containing biomass for the production of non-pyrolytic bio-oil in addition to a high-quality pulp comprising cellulose and hemicellulose as a byproduct (claimed).    ADVANTAGE - The process produces a pulp in high yields and with low structural modifications from the process, and where this pulp undergoes enzymatic hydrolysis in the presence of commercial cellulases preparations. Also, the process can find interesting applications, leading in a single-step to high quality pulp and valuable lignin products.    DETAILED DESCRIPTION - Catalytic fractionation of lignin containing biomass for the production of non-pyrolytic bio-oil in addition to a high-quality pulp comprising cellulose and hemicellulose as a byproduct, involves the steps of: (a) subjecting preferably particulate lignocellulose material to a treatment at the temperature range of 130-300 degrees C, preferably 170-240 degrees C, in a solvent system comprising an organic solvent or mixture of solvents, preferably alcohols and water in the presence of a metal catalyst, preferably skeletal nickel (Ni) catalyst, in absence of externally supplied molecular hydrogen, under autogenous pressure in a reaction vessel for a reaction time of 0.01-8 hours; (b) removing the catalyst from the reaction mixture, preferably by magnetic forces; (c) filtering the reaction mixture to separate the raw non-pyrolytic bio-oil from the pulp; and optionally (d) removing the solvent system from the filtrate to concentrate the non-pyrolytic bio-oil.