US Patent 7381847 Methyl mercaptan to olefins

A process is disclosed for the production of olefins including ethylene, propylene and butenes from methyl mercaptan. The process comprises a reaction whereby methyl mercaptan decomposes to produce the olefin and hydrogen sulfide. The reaction is carried out at an elevated temperature in the range of 300° C. to 500° C. to achieve pyrolysis. Alternatively, a heterogeneous catalyst may be used.