New Microsoft Word Document (6) - Selectivity enhancement...

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Selectivity enhancement of Co-Mo/Al 2 O 3 FCC gasoline hydrodesulfurization catalysts via incorporation of mesoporous Si-SBA-15 Yu Fan a , b , Gang Shi b , Haiyan Liu b and Xiaojun Bao a , b , , a State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, PR China b The Key Laboratory of Catalysis, China National Petroleum Corporation, China University of Petroleum, Beijing 102249, PR China Received 23 November 2009; revised 5 January 2011; accepted 7 January 2011. Available online 18 January 2011. Abstract Mesoporous Si-SBA-15 was applied to enhance the FCC gasoline selective hydrodesulfurization (HDS) performance of conventional Co-Mo/Al 2 O 3 catalysts and the physicochemical properties of the resulting catalyst were compared with those of Co-Mo/Al 2 O 3 catalysts incorporated with macroporous kaolin, mesoporous Si-MCM-41 and microporous Si-ZSM-5. The selective HDS performances of all the catalysts were assessed with different FCC gasolines as feedstocks. The results showed that the HDS selectivity of the catalysts was closely related to the Mo sulfidation that depends on catalyst surface area and metal-support interaction. With the superior Mo sulfidation, the Co-Mo/Si-SBA- 15–Al 2 O 3 catalyst had the optimal HDS selectivity for not only the full-range FCC gasolines but also the heavy
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This note was uploaded on 02/17/2011 for the course CHEM ENGG 101 taught by Professor Mister during the Spring '11 term at University of Engineering & Technology.

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New Microsoft Word Document (6) - Selectivity enhancement...

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