Commercial Application of Energy-Saving AB-19-T Ethylbenzene Catalyst
HE Junlin, LIU Wei, HUAN Mingyao, SUN Hongmin, WANG Darui
State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology Company Limited, Shanghai 201208, China
Abstract：To promote ethylbenzene transalkylation technology, and to assist enterprises in reducing costs and increasing efficiency, SINOPEC Shanghai Research Institute of Petrochemical Technology Company Limited had developed a new generation of energy-saving vapor-phased ethylbenzene alkylation catalyst AB-19-T based on high-efficiency gas-solid crystallization technology. The industrial application tests of AB-19-T had been successfully conducted in SINOPEC Guangzhou Petroleumical Company's 80 000 t/a vapor-phased ethylene-to-ethylbenzene unit. Due to the transformation of binders into active zeolite crystals, AB-19-T demonstrated significantly superior overall performance compared to the previous generation catalysts containing binders. After operating stably for 26 months, the reaction inlet temperature of AB-19-T was maintained at approximately 430 ℃, which was over 15 ℃ lower than previous generation of catalyst. The diethylbenzene conversion and ethylbenzene selectivity also remained stable at above 50% and 99.5% respectively.
HE Junlin,LIU Wei,HUAN Mingyao et al. Commercial Application of Energy-Saving AB-19-T Ethylbenzene Catalyst[J]. Chemical Reaction Engineering and Technology, 2025, 41(2): 344-348.
