BIOMASS LIQUEFACTION METHOD, LIQUID FUEL AND CHEMICAL RAW MATERIAL PRODUCED BY SAID METHOD Russian patent published in 2019 - IPC C10G1/00 C10G1/06 C10G1/08 

FIELD: technological processes.

SUBSTANCE: invention relates to a biomass liquefaction method, liquid fuel, chemical raw material produced by said method. Biomass liquefaction method involves the following steps: S1: prepare a suspension containing a first catalyst and biomass; S2: carry out a first hydrogenation reaction by introducing high pressure hydrogen into the suspension, wherein said reaction includes the following: a first step in which high-pressure hydrogen of average temperature is added to the suspension and the suspension is heated to 200–350 °C by heat exchange, and a second step, in which high pressure and high temperature hydrogen is introduced into the suspension to obtain a reaction mixture of raw material, wherein a volume ratio of high pressure hydrogen and suspension is (600–1,000):1; and wherein the reaction mixture of raw material is fed into a first reactor with a three-phase fluidized bed for hydrolysis, cracking and hydrogenation reactions, wherein cold high pressure hydrogen is simultaneously introduced into the first reactor with the three-phase fluidized bed by controlling the total gas velocity in the first reactor with the three-phase fluidized bed at level of 0.02–0.2 m/s, regulate reaction pressure of 13–25 MPa and reaction temperature from 200 °C to 480 °C for producing a first stage hydrogenation product, wherein the pressure of each of high-pressure hydrogen and high-pressure cold hydrogen is 13–27 MPa, the temperature of high-pressure cold hydrogen is 50–135 °C, temperature of high pressure and average temperature hydrogen is 180–350 °C, and the temperature of high pressure and high temperature hydrogen is 360–510 °C.

EFFECT: high output of liquid products, and almost no coke is formed.

24 cl, 3 tbl