NOVELTY - Catalytic hydrodeoxygenation (HDO) of oil from pyrolysis of biomass and/or woody organic phase obtained after the separation of oily phases from additivated water biomass pyrolysis, comprising many catalytic beds arranged in series, divided into one or more reactors, equipped with means of the temperature control, comprises: injecting pyrolysis oil on top of the first catalyst bed; injecting hydrogen gas in splitted manner; and separating liquid effluent at the outlet of the last catalyst bed in a liquid phase and an organic phase.    USE - The process is useful for catalytic hydrodeoxygenation of oil from pyrolysis of biomass and/or woody organic phase.    ADVANTAGE - The process is simple and inexpensive.    DETAILED DESCRIPTION - Catalytic hydrodeoxygenation (HDO) of oil from pyrolysis of biomass and/or woody organic phase obtained after the separation of oily phases from additivated water biomass pyrolysis, comprising many catalytic beds arranged in series, divided into one or more reactors, equipped with means of the temperature control, comprises: injecting pyrolysis oil on top of the first catalyst bed; injecting hydrogen gas in splitted manner, where the first injection of hydrogen is carried out on top of the first catalyst bed, or the other injections of hydrogen molecule (H2) are carried out between two catalytic beds and a difference between two temperatures of successive injections of H2 does not exceed 50 degrees C, and Delta Tmax of less than or equal to 50 degrees C; and separating liquid effluent at the outlet of the last catalyst bed in a liquid phase and an organic phase, where a part of the organic phase is optionally be recycled in the reactor, preferably re-injected with pyrolysis oil, the injected hydrogen quantity in a bed is equal to the stoichiometric quantity needed to reach a Delta T target in that bed, and/or the quantity of hydrogen injected on top of the first bed is such that the water of the pyrolysis oil is not sprayed. INDEPENDENT CLAIMS are included for:    (1) a process of preparing renewable or partially renewable fuel and/or liquid fuel, such as gasoline, jet, kerosene, diesel, domestic fuel and/or naphtha, fuel of pyrolysis oil-based biomass and/or organic phase obtained from the separation of the pyrolysis oil of additivated water biomass, fuel after HDO treatment and optionally mineral or fossil base fuel such as petroleum base from refinery;    (2) a process of preparing chemical intermediaries made of pyrolysis oil after partial HDO treatment; and    (3) a process for the recovery of pyrolysis oil and/or the woody organic phase obtained from the separation of the oily phase of the water additivated biomass into fuels and/or liquid fuels, comprising total or forced HDO pyrolysis oil and/or the woody organic phase obtained from the separation of pyrolysis oil phase of water additivated biomass according to the process of HDO and separation of the liquid effluent obtained by a light aqueous fraction and heavy organic fraction; pre-reforming the light aqueous fraction and treatment of the light aqueous fraction in a unit steam methane reforming to produce hydrogen gas, and hydrotreating heavy organic fraction obtained from HDO, optionally in combination with fuel bases or fuels of conventional refinery.