| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to the production of fuel materials from biomass. A method for treating feedstock containing biooil comprises: dispersing the feedstock containing biooil in a hydrocarbon type liquid, selected from an aromatic hydrocarbon solvent, a naphthenic hydrocarbon solvent, a naphtheno-aromatic hydrocarbon solvent, a fossil or biomass fuel derived hydrocarbon liquid and/or a recycled hydrocarbon liquid obtained from further hydrotreatment and/or hydrocracking and/or mild hydrocracking step(s) of the upgraded biooil, using a dispersing agent, selected from a surfactant or an oxygen-containing solvent, pure or blended, selected from an alkanol, ketones, esters and phenol compounds, or recycled partially upgraded biooil with or without the hydrocarbon type liquid contained in the organic phase, from a hydroreforming step; feeding the obtained dispersion to a hydroreforming step with hydrogen under pressure in the presence of at least one transition metal catalyst, where the hydroreforming step is carried out at a temperature of about 250°C to about 450°C and at absolute pressure of about 3.4 to 27.6 MPa; separating the output stream after the hydroreforming step into an aqueous phase and at least one organic phase containing partially upgraded biooil and a hydrocarbon type liquid, where the partially upgraded biooil, with or without the hydrocarbon type liquid, is contained in an organic phase; further feeding to a hydrotreatment step in the presence of hydrogen and a hydrotreatment catalyst at a temperature of 250°C to 450°C, at a pressure of 2 MPa to 25 MPa and with hourly space velocity of 0.1 hto 20 hand/or a hydrocracking step in the presence of hydrogen and a hydrocracking catalyst at a temperature higher than 200°C and pressure of 2 MPa to 25 MPa and hourly space velocity of 0.1 hto 20 hand/or a mild hyrocracking step in the presence of hydrogen and a hydrocracking catalyst at a temperature of 250°C to 480°C, at a pressure of 2 MPa to 12 MPa and hourly space velocity of 0.1 hto 20 hto obtain a liquid hydrocarbon product.EFFECT: improved conversion of biooil without the considerable formation of coke or biooil polymers.12 cl, 9 tbl, 10 dwg, 13 ex |
