Patent ID: 8075761

Claim:
A process for the production of a hydrocarbon composition for use in a fuel for compression ignition engines, said process consisting essentially of the steps of: a. producing two or more synthesis gas products from a solid, liquid or gaseous carbonaceous feedstock by at least one synthesis gas production process, wherein the two or more synthesis gas products are blended; b. subjecting the two or more synthesis gas products to a High Temperature Fischer-Tropsch synthesis to obtain a first synthetic hydrocarbon and water, wherein the first synthetic hydrocarbon has a sulphur content of below 5 ppm and a density of from 0.800 to 0.845 kg/l at 15° C.; c. subjecting the two or more synthesis gas products to a Low Temperature Fischer-Tropsch synthesis to obtain a second synthetic hydrocarbon and water, wherein the second synthetic hydrocarbon has a sulphur content of below 5 ppm; d. hydroconverting at least a fraction of the first synthetic hydrocarbon to produce one or more High Temperature Fischer-Tropsch process-derived hydrocarbons in the boiling range of from 150° C. to 390° C.; e. hydroconverting at least a fraction of the second synthetic hydrocarbon to produce one or more Low Temperature Fischer-Tropsch process-derived hydrocarbons in the boiling range of from 150° C. to 390° C.; and f. blending the hydrocarbons produced in steps d. and e. to form a hydrocarbon composition for use in a fuel for compression ignition engines, wherein the hydrocarbon composition has a sulphur content of below 5 ppm, a paraffin content of at least 75 vol. %, and an aromatics content above 9 mass %.