NOVELTY - Converting a biomass material, comprises: (a) pyrolyzing a biomass material to produce a biomass-derived pyrolysis product (106); (b) mixing at least part of the biomass-derived pyrolysis product and a petroleum-derived hydrocarbon composition having 7C-asphaltenes content to produce a hydrocarbon-containing mixture; (c) dewatering the hydrocarbon-containing mixture to produce a dewatered hydrocarbon-containing mixture; and (d) contacting the dewatered hydrocarbon-containing mixture with hydrogen in one or more ebullating bed reactors comprising a catalyst to produce a reaction product.    USE - The process is useful for converting a biomass material, preferably a lignocellulosic material (all claimed) in a reaction product comprising one or more cracked products, and for preparing biofuel and/or biochemical, where the biomass material includes a material containing cellulose and/or lignocellulose, aquatic plants and algae, agricultural waste, forestry waste, paper waste and/or plant material obtained from domestic waste, and the cellulose and/or lignocellulose material includes: agricultural wastes such as corn stover, soybean stover, corn cobs, rice straw, rice hulls, oat hulls, corn fiber, cereal straws such as wheat, barley, rye and oat straw; grasses; forestry products and/or forestry residues such as wood and wood-related materials such as sawdust and bark; waste paper; and/or sugar processing residues such as bagasse and beet pulp.    ADVANTAGE - The process is capable of simply converting the biomass material without using high boiling hydrocarbon in a safe and reliable manner.    DETAILED DESCRIPTION - Converting a biomass material, comprises: (a) pyrolyzing a biomass material to produce a biomass-derived pyrolysis product (106); (b) mixing at least part of the biomass-derived pyrolysis product and a petroleum-derived hydrocarbon composition having 7C-asphaltenes content of equal to or more than 0.2 wt.% to produce a hydrocarbon-containing mixture; (c) dewatering the hydrocarbon-containing mixture to produce a dewatered hydrocarbon-containing mixture; and (d) contacting the dewatered hydrocarbon-containing mixture with hydrogen in one or more ebullating bed reactors comprising a catalyst at a temperature of 350-500 degrees C to produce a reaction product.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a process for converting the biomass material.    Feed (102)    Pyrolysis reactor (104)    Pyrolysis product (106)    Solid char (108)    Condenser. (112)