NOVELTY - Producing biofuels from biomass comprises: e.g. (i) providing a biomass containing celluloses, hemicelluloses and lignin; (ii) contacting the biomass with an aqueous media to form a extracted biomass comprising celluloses, hemicelluloses, soluble carbohydrates and lignin; (iii) separating a portion of an aqueous liquor from the extracted biomass; (iv) contacting the extracted biomass solids stream with a first digestive solvent to form a pretreated biomass; and (v) contacting the pretreated biomass with a second digestive solvent to form a solubilized pulp comprising soluble carbohydrates.    USE - The method is useful for producing biofuels from biomass, where the biofuels are ethanol, methanol, vegetable oil, and gaseous fuels, such as hydrogen and methane.    ADVANTAGE - The method is capable of directly processing biomass into biofuels in an economical manner.    DETAILED DESCRIPTION - Producing biofuels from biomass comprises: (i) providing a biomass containing celluloses, hemicelluloses and lignin; (ii) contacting the biomass with an aqueous media to form a extracted biomass comprising celluloses, hemicelluloses, soluble carbohydrates and lignin; (iii) separating at least a portion of an aqueous liquor from the extracted biomass to provide the aqueous liquor stream comprising soluble carbohydrates and a pretreated or a extracted biomass solids stream comprising celluloses, hemicelluloses, and lignin; (iv) contacting the extracted biomass solids stream with a first digestive solvent to form a pretreated biomass comprising celluloses, residual hemicelluloses and lignin; (v) contacting the pretreated biomass with a second digestive solvent to form a solubilized pulp comprising soluble carbohydrates, where at least a portion of the solubilized pulp is provided to the aqueous liquor stream or the aqueous media; (vi) contacting the aqueous liquor stream with a purification substrate effective to remove sulfur compounds and nitrogen compounds to produce a treated carbohydrate stream having less than 35% of the sulfur content and less than 35% of the nitrogen content based on the untreated aqueous liquor stream; (vii) contacting the treated carbohydrate stream and optionally, the solubilized pulp stream directly with hydrogen in the presence of a hydrogenolysis catalyst to form oxygenated intermediates, where a first portion of the oxygenated intermediates are recycled to form the second digestive solvent; and (viii) processing at least a second portion of the oxygenated intermediates to form a liquid fuel. INDEPENDENT CLAIMS are included for a system comprising: either (a1) a vessel that receives a biomass feedstock and an aqueous media operating under conditions effective to produce a extracted biomass comprising celluloses, hemicelluloses, soluble carbohydrates and lignin and discharges an aqueous liquor stream comprising soluble carbohydrates, (b1) a digester that receives the extracted biomass and a first digestive solvent operating under conditions effective to produce a pretreated biomass comprising celluloses, and residual hemicelluloses and lignin, (c1) a vessel that receives the pretreated biomass and a second digestive solvent operating under conditions effective to produce a solubilized pulp comprising soluble carbohydrates, (d1) an aqueous liquor treater comprising a purification substrate that receives the aqueous liquor and discharges a treated carbohydrate stream having less than 35% of the sulfur content and less than 35% of the nitrogen content, based on the untreated aqueous liquor stream, (e1) a hydrogenolysis reactor comprising a hydrogenolysis catalyst that receives hydrogen and the treated carbohydrate stream and the solubilized pulp, and discharges an oxygenated intermediate stream, where a first portion of the oxygenated intermediate stream is recycled as the second digestive solvent to the vessel that receives the pretreated biomass to form the solubilized pulp, (f1) a first fuels processing reactor comprising a dehydrogenation catalyst that receives a second portion of the oxygenated intermediate stream and discharges an olefin-containing stream, and (g1) a second fuels processing reactor comprising an alkylation catalyst that receives the olefin-containing stream and discharges a liquid fuel; or the steps (a1)-(c1) as above per se, an aqueous liquor treater comprising a purification substrate that receives the aqueous liquor and the solubilized pulp and discharges a treated carbohydrate stream having less than 35% of the sulfur content and less than 35% of the nitrogen content based on the untreated aqueous liquor stream, a hydrogenolysis reactor comprising a hydrogenolysis catalyst that receives hydrogen and the treated carbohydrate stream and discharges an oxygenated intermediate stream, and a fuels processing reactor comprising a condensation catalyst that receives a second portion of the oxygenated intermediate stream and discharges a liquid fuel; or the steps (a1)-(d1) as above per se, a hydrogenolysis reactor comprising a hydrogenolysis catalyst that receives hydrogen and the treated aqueous liquor carbohydrate stream and discharges an oxygenated intermediate stream, where a first portion of the oxygenated intermediate stream is recycled as the second digestive solvent to the vessel that receives the pretreated biomass to form the solubilized pulp, and at least a portion of the solubilized pulp is recycled to the vessel that receives the biomass feedstock to comprise at least a portion of the aqueous media, and a fuels processing reactor comprising a condensation catalyst that receives a second portion of the oxygenated intermediate stream and discharges a liquid fuel; or the steps (a1)-(d1) as above per se, a hydrogenolysis reactor comprising a hydrogenolysis catalyst that receives hydrogen and the treated aqueous liquor carbohydrate stream and discharges an oxygenated intermediate stream, where a first portion of the oxygenated intermediate stream is recycled as the second digestive solvent to the vessel that receives the pretreated biomass to form the solubilized pulp, and at least a portion of the solubilized pulp is recycled to the vessel that receives the biomass feedstock to comprise at least a portion of the aqueous media, and the steps (f1) and (g1) as above per se.