Patent ID: 9394485
Filing Date: 2016-07-19
CPC Classification: C10G,C10L,Y02E,Y02P,Y02T

Claim Text:
1. A method comprising: (i) providing a biomass comprising celluloses, hemicelluloses and lignin; (ii) contacting said biomass from step (i) with an aqueous media to form an extracted biomass comprising celluloses, hemicelluloses, soluble carbohydrates and lignin; (iii) separating said extracted biomass from step (ii) into at least an aqueous liquor stream comprising soluble carbohydrates and an extracted biomass solids stream comprising celluloses, hemicelluloses, and lignin, thereby providing said aqueous liquor stream separate from said extracted biomass solids stream and external of a vessel containing said extracted biomass of step (ii); (iv) contacting said aqueous liquor stream of step (iii) with a purification substrate effective to remove sulfur compounds and nitrogen compounds, thereby producing a treated carbohydrate stream having less than 35 wt % of the sulfur content and less than 35 wt % of the nitrogen content of a corresponding untreated aqueous liquor stream; (v) contacting said treated carbohydrate stream of step (iv) with an aqueous phase reforming catalyst to form a plurality of oxygenated intermediates; and (vii) processing at least a portion of said oxygenated intermediates of step (v) to form a liquid fuel.