Thermal conversion of biomass to valuable fuels, chemical...

Chemistry of inorganic compounds – Carbon or compound thereof – Binary compound

Reexamination Certificate

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C423S442000

Reexamination Certificate

active

07494637

ABSTRACT:
A continuous process for the conversion of biomass to form a chemical feedstock is described. The biomass and an exogenous metal oxide, preferably calcium oxide, or metal oxide precursor are continuously fed into a reaction chamber that is operated at a temperature of at least 1400° C. to form reaction products including metal carbide. The metal oxide or metal oxide precursor is capable of forming a hydrolizable metal carbide. The reaction products are quenched to a temperature of 800° C. or less. The resulting metal carbide is separated from the reaction products or, alternatively, when quenched with water, hydolyzed to provide a recoverable hydrocarbon gas feedstock.

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