Technical Session: OCC Process for Propylene and Ethylene Production

Developing new cost effective process for production of propylene and ethylene is great significance to maintain sustainable development of petrochemical industry. SINOPEC SRIPT has developed a process that allows high selective production of propylene and ethylene by conversion of low value C4/C5 olefins from methanol to olefins, crackers and refineries. The OCC (Olefins Catalytic Cracking) process features fixed-bed adiabatic reactors operating at temperatures 500-600℃ and pressures <0.5MPa. The OCC process utilizes a tailor made full-crystalline ZSM-5 catalyst, by re-crystallizing the shaped binder/zeolite body, the binders were converted into zeolitic phase, forming full-zeolitic monolithic catalysts. The full-crystalline ZSM-5 catalyst showed low hydrogen transfer index, and exhibited higher selectivity, catalytic activity in OCC. The full-crystalline ZSM-5 catalyst as well as OCC process, have commercialized in many plants, the yield of propylene and ethylene during the performance test is over 80%.

Speakers

JIAWEI TENG

KAUST

KAUST Research Centers

KCC Research Groups