Liquefaction of coal with aqueous carbon monoxide pretreatment
Liquefaction of decarboxylated carbonaceous solids
Liquefaction of solid carbonaceous material with catalyst recycl
Liquefaction of sub-bituminous coal
Liquefaction process
Low ash coal products from depolymerized coal
Low temperature pyrolysis of coal or oil shale in the presence o
Low-sulfur fuels from coals