초록 ▼

A continuous thermochemical indirect liquefaction process to convert various biomass materials into diesel-type transportation fuels which fuels are compatible with current engine designs and distribution systems comprising feeding said biomass into a circulating solid fluidized bed gasification sys

A continuous thermochemical indirect liquefaction process to convert various biomass materials into diesel-type transportation fuels which fuels are compatible with current engine designs and distribution systems comprising feeding said biomass into a circulating solid fluidized bed gasification system to produce a synthesis gas containing olefins, hydrogen and carbon monoxide and thereafter introducing the synthesis gas into a catalytic liquefaction system to convert the synthesis gas into liquid hydrocarbon fuel consisting essentially of C7-C17 paraffinic hydrocarbons having cetane indices of 50+.

대표청구항 ▼

A process for producing liquid hydrocarbon fuels consisting essentially of C7-C17 paraffinic hydrocarbons free of oxygenated compounds from an oxygen-containing biomass comprising: feeding comminuted biomass into a pyrolyzer heated to a temperature of from about 1,200°to 2,000°F. to produce an inter

A process for producing liquid hydrocarbon fuels consisting essentially of C7-C17 paraffinic hydrocarbons free of oxygenated compounds from an oxygen-containing biomass comprising: feeding comminuted biomass into a pyrolyzer heated to a temperature of from about 1,200°to 2,000°F. to produce an intermediate synthesis gas containing in mole percent from 10 to 53 percent hydrogen, from about 6 to 60 percent carbon monoxide, from 5 to 39 percent olefins, from 6 to 33 percent paraffins, and from 4 to 26 percent carbon dioxide; thereafter directing said unseparated intermediate synthesis gas into a catalytic reactor operating at about 500°F. 140 psig, and containing a catalyst consisting of an active ingredient selected from the group consisting of cobalt, ruthenium, nickel and iron disposed upn a compatible support structure selected from the group consisting of alumina, silica, kiesulguhr and diatomaceous earths to form a water/alcohol binary and said liquid hydrocarbon fuel; and separating said liquid hydrocarbon fuel from said water/alcohol binary.