Effects of Metal Oxide in ZSM-5 Zeolite on Its Catalytic Performance in FCC Process

查看全文 作　　者：Qin Jinlai;Ouyang Ying;Li Minggang;Luo Yibin;Shu Xingtian(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

出　　处：《China Petroleum Processing & Petrochemical Technology》索引2011年第13卷第2期,共4页

摘　　要：Effects of metal oxide in ZSM-5 zeolite on its catalytic performance in fluid catalytic cracking reaction were studied via characterization by XRD and FT-IR spectroscopy using pyridine and collidine as molecular probes,and the modified ZSM-5 zeolite was evaluated in a micro reactor using standard light diesel fraction as the feedstock.Test results indicate that the metal species introduced into the ZSM-5 zeolite had led to the formation of Lewis acid centers.When the modified ZSM-5 zeolite with the metal species on its surface was used as the catalyst in FCC reaction,both the propylene yield and the propylene concentration in the liquefied petroleum gas increased,but in the meantime,more hydrogen and coke were formed at high conversion rate under the joint action of nonselective cracking of Lewis acid centers and dehydrogenation at metal centers on its outside surface. 关键词：金属氧化物催化性能 ZSM 催化裂化过程沸石催化裂化反应红外光谱表征丙烯收率

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Effects of Metal Oxide in ZSM-5 Zeolite on Its Catalytic Performance in FCC Process

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