APPLICATION OF FOSSIL FUELS TO INCREASE THE ADVANTAGES OF SYNTHETIC FUELS BASED ON BIOMASS

摘要

1. A method comprising (A) obtaining a fossil hydrocarbon fuel feedstock; (B) forming from said hydrocarbon fuel feedstock a gaseous product stream comprising hydrogen and carbon monoxide in an H2: CO molar ratio of at least 2.0: 1; (C) adding a gaseous product stream formed in step (B) to a synthesis gas stream containing hydrogen and CO that is obtained from the carbonaceous feed material in a sufficient amount to form a mixed synthesis gas stream having a H2: CO molar ratio greater than that of said synthesis gas stream obtained from carbon raw material; (D) converting said mixed synthesis gas stream to form a fuel product and recovering from said transformation a by-product stream comprising one or more of hydrogen, CO, water vapor, methane and hydrocarbons containing 2-8 carbon atoms and 0-2 oxygen atoms; and (E) reacting up to 100% of said by-product stream in said formation of said gaseous product stream in step (B). 2. The method according to claim 1, wherein said synthesis gas stream, which is obtained from carbonaceous raw material, is obtained by gasification. The method according to claim 1, wherein said synthesis gas stream, which is obtained from a carbonaceous feed material, is partially oxidized before being combined with said gaseous product stream. The method according to claim 1, wherein the fossil fuel-based hydrocarbon feed obtained in step (A) comprises methane. The method according to claim 1, wherein the fossil-based hydrocarbon feed