Allied Corporation

Fredrick J Gefri

Kundanbhai M Patel

Andiappan K Murthy

Alex Y Bekker

A process for converting heavy hydrocarbon into light hydrocarbon which comprises contacting heavy hydrocarbon having an API gravity at 25.degree. C. of less than about 20, such as Boscan heavy crude oil and tar sand bitumen, with a liquid comprising water, and carbon monoxide in the presence of an externally added catalyst comprising a mixture of sulfur and at least one of ferric oxide, ferric sulfide, ferrous sulfide and pyrite a residue and a phase comprising light hydrocarbon, gas and water; separating the residue and said phase; and recovering from said phase light hydrocarbon having an API gravity at 25.degree. C. of greater than about 20, and having a hydrogen to carbon mole ratio greater than that of the heavy hydrocarbon feedstock.

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Hackettstown, NJ, United States of America

Fredrick J Gefri