Chevron Phillips Chemical Company LP

Christina M Barry

Daniel M Hasenberg

Mitchell D Refvik

Reza Khankal

Henry Hwu

Michael S Hankinson

Jennifer F Drew

Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.

Process for conversion of dimethyl sulfide to methyl mercaptan

Described herein are processes and systems for purifying an olefin stream which has at least 99 mol % ethylene, involving use of a sulfur guard bed to yield an effluent from the olefin stream which is substantially free of sulfur; a hydrogenation catalyst to yield an effluent from the sulfur guard bed effluent which is substantially free of sulfur, oxygen, acetylene, methyl acetylene, and propadiene; a copper-metal containing catalyst bed to yield an effluent from the hydrogenation catalyst effluent which is substantially free of sulfur, oxygen, acetylene, methyl acetylene, propadiene, carbon monoxide, and hydrogen; and a desiccant to yield a purified ethylene stream having greater than or equal to 99.875 mol % ethylene.

Process for purifying ethylene produced from a methanol-to-olefins facility

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Houston, TX, United States of America

Christina M Barry