NOVELTY - A wet cellulosic biomass solid is contacted with organic solvent. Obtained low water-content lignocellulosic biomass solid (12) is contacted in hydrothermal digestion unit in presence of digestive solvent, hydrogen and catalyst. Portion of obtained product stream (32) is flashed to produce heavy stream comprising glycol, diol, 4C or more monooxygenate, tetrahydrofurfuryl alcohol, phenol and lignin residue. Portion of light mono-oxygenate stream is contacted with condensation catalyst to produce condensation product stream containing 4C or more hydrocarbons.    USE - Production of hydrocarbon used in preparation of transportation fuel and industrial chemical.    ADVANTAGE - The 4C or more hydrocarbon is produced with reduced usage of heat.    DETAILED DESCRIPTION - A wet cellulosic biomass solid containing 30 wt.% or more water is provided and contacted in drying unit (10) with high-boiling at least partially hydrophilic organic solvent containing ethylene glycol, propylene glycol, diol, 4C or more monooxygenate, tetrahydrofurfuryl alcohol and/or substituted phenol and having water content of less than 20 wt.%, at 5-60 degrees C and atmospheric pressure of 10000 kPa to produce low-water-content cellulosic biomass solid containing 25 wt.% or less water and wet organic solvent (16). The low water-content lignocellulosic biomass solid is contacted in a hydrothermal digestion unit in presence of digestive solvent, hydrogen, and a catalyst capable of activating molecular hydrogen, to at least partially transform lignocellulosic biomass solids into reaction product comprising monooxygenate, glycol, diol, 4C or more monooxygenate, tetrahydrofurfuryl alcohol, and/or phenol in liquor phase in hydrothermal digestion unit to produce product stream comprising liquor phase and lignin residue. Portion(s) of the product stream is flashed at 100-250 degrees C and 5000 kPa or less to separate light monooxygenate stream and to produce heavy stream comprising glycol, diol, 4C or more monooxygenate, tetrahydrofurfuryl alcohol, phenol and lignin residue. The organic solvent stream is separated from heavy stream and recycled to drying unit. Portion(s) of water is removed from wet organic solvent to produce dried organic solvent. Portion(s) of dried organic solvent is recycled to the drying unit as high boiling at least partially hydrophilic organic solvent. Portion(s) of light mono-oxygenate stream and/or portion(s) of high-boiling least partially hydrophilic organic solvent stream is contacted with condensation catalyst to produce condensation product stream containing 4C or more hydrocarbons. The high-boiling at least partially hydrophilic organic solvent has boiling point of 100 degrees C in atmospheric pressure.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of the production of hydrocarbon.    Drying unit (10)    Low water-content lignocellulosic biomass solid (12)    Wet organic solvent (16)    Hydrothermal catalytic reaction zone (30)    Product stream (32)