Liquefaction of coals using recyclable superacid catalyst
OwnerGeorge A. Olahinventor
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Abstract
This invention discloses a process for the liquefaction of coals and other predominantly hydrocarbonaceous materials by treating the same with a superacidic catalyst system consisting of anhydrous hydrogen fluoride and boron trifluoride in the presence of super-atmospheric hydrogen.
Claims5
A process for the liquefaction of coals or other predominantly hydrocarbonaceous materials by treatment thereof with hydrogen gas under superatmospheric pressure of 25-150 atmospheres at temperatures of 50.degree.-250.degree. C. in the presence of a superacidic system comprising anhydrous hydrogen fluoride and boron trifluoride, present in a mole ratio of about 0.5 to 2 to 1.
A process for the liquefaction of coals or other predominantly hydrocarbonaceous materials comprising the steps of (i) treatment thereof with a superacidic system comprising hydrogen fluoride and boron trifluroide, present in a mole ratio of about 0.5 to 2 to 1, to effect depolymerization followed by (ii) conventional catalytic hydrogenation of the depolymerized products prepared in step (i).
Dependencies are inferred from the claim text.