Process for direct conversion of biomass to liquid fuels and chemicals

摘要

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CH3OH═CO+2H2, b) CO+H2O═CO2+H2. In some versions, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C5-C9 alcohols. In certain versions, the method can he practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some versions, the fluid product can be prepared with substantially no char formation. The fluid product of various versions can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.

主权项

1. A method of catalytically preparing a fluid product from biomass containing lignin, cellulose, hemicellulose or lignocellulose, or any combination thereof, comprising:
reacting a biomass material in a reducing environment in the presence of at least one of a cosolvent or methanol and one or more catalysts so as to produce a fuel or fuel additive fluid product, wherein the one or more catalysts establish both of the following equilibria:
Cosolvent or methanol=CO+2H2,  a)CO+H2O=CO2+H2.  b)