Patent ID: 7763227

Claim:
A process for the manufacture of carbon disulphide comprising the following steps: (1) providing a hydrocarbon feedstock comprising hydrogen sulfide; (2) separating at least a portion of the hydrogen sulfide from the hydrocarbon feedstock: (3) partially oxidizing at least a portion of the hydrocarbon feedstock from step 2 into a synthesis gas comprising carbon monoxide and hydrogen; (4) separating at least a portion of the hydrogen from the synthesis gas from step 3, leaving a carbon monoxide enriched synthesis gas; (5) reacting carbon monoxide from step 4 with hydrogen sulphide from step 2 to form carbonyl sulphide and hydrogen; (6) contacting the carbonyl sulphide from step 5 with a catalyst effective for disproportionating carbonyl sulphide into carbon disulphide and carbon dioxide.