Patent ID: 8063258

Claim:
A process for producing fuel from biomass comprising: (i) torrefying biomass material at a temperature between 80° C. and 300° C., to form particulated biomass having a mean average particle size from about 1 μM to about 1000 μm; (ii) mixing the particulated biomass with an organic liquid solvent to form a suspension, wherein the particulated biomass is present in the suspension in an amount between about 1 weight percent to about 40 weight percent, based on the total weight of the suspension; (iii) feeding the suspension into a hydropyrolysis reactor; (iv) feeding hydrogen into the hydropyrolysis reactor; and (v) converting at least a portion of the particulate biomass of the suspension into bio-oil at a temperature of at least 300° C., and a pressure between 1 atm to 200 atm.