Patent ID: 8802905

Claim:
An integrated biofuel production process comprising the steps of: (a) converting a biomass to yield one or more alcohols and a residual biomass; (b) gasifying the residual biomass to produce carbon monoxide, hydrogen or mixtures thereof, thereby producing thermal energy; (c) synthesizing a liquid hydrocarbon fuel from the alcohols through a dehydration and an oligomerization reaction using at least a portion of the thermal energy produced by gasifying the residual biomass; (d) converting the residual biomass into energy and/or one or more commercially viable co-products, wherein the co-products are selected from the group consisting of acids, ketones, alcohols, ethers, alkylbenzenes, fuel additives, biopolymers, proteins for animal and human consumption, and surfactants; and (e) further comprising the step of combusting the carbon monoxide, the hydrogen, or mixtures thereof to produce heat and electricity, wherein the heat and electricity are recycled back into the process to perform step (c).