Conversion of coal to high octane gasoline

Details Conversion of coal to high octane gasoline Conversion of coal to high octane gasoline

C - Chemistry, Metallurgy

10

G

196/3

C10G 1/00 (2006.01) C07C 29/151 (2006.01) C10L 1/06 (2006.01)

Patent

CA 1083991

CONVERSION OF COAL TO HIGH OCTANE GASOLINE ABSTRACT OF THE DISCLOSURE A process is described for the efficient conversion of coal into high octane, liquid, hydrocarbon gasoline. The process comprises reacting coal with oxygen and water at about 1450 to 1800°F to produce a synthesis gas product comprising carbon oxides, hydrogen and methane; catalyzing the conversion of said carbon oxides and hydrogen to a pro- duct comprising water, C? gas and C? aromatic gasoline by a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12 and a constraint index of 1 to 12; separating said C? gas into a C? tail gas comprising methane, ethane and ethylene, and an alkylation feed comprising saturated and unsaturated C3 and C4 hydrocarbons; alkylating said alkylation feed in contact with a strong acid at up to about 450°F and up to about 500 psig; admixing C7 and C8 alkylate with said aromatic gasoline; steam reforming said C? tail gas to an auxiliary synthesis gas comprising carbon oxides and hydrogen; and admixing said auxiliary synthesis gas with said coal gasification gas prior to conversion thereof into said aromatic gasoline.

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