화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.5, 1736-1740, September, 2012
DOI10.1016/j.jiec.2012.03.019  Export Citation
Influence of combined alkaline treatment and Fe.Ti-loading modification on ZSM-5 zeolite and its catalytic performance in light olefin production
Kun Hao, Baojian Shen†, Yandan Wang, and Jia Ren
  • State Key Laboratory of Heavy Oil Processing; The Key Laboratory of Catalysis of CNPC, College of Chemical Engineering, China University of Petroleum, No. 18 Fuxue Road, Changping, Beijing 102249, PR China
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Alkali-treatment and Fe-Ti-loading were used to modify ZSM-5 zeolite. It was found that alkali- treatment created mesopore and Fe-Ti-loading improved the redox property of ZSM-5 catalyst, although both modifications led to a reduction of the total acid sites amount. The catalytic performance test indicated that the coexistence of meso.microporosity and Fe-Ti-loading on ZSM-5 catalyst is benefit to improve the yield of light olefins in catalytic cracking. The catalyst containing the combined modified ZSM-5 increased the propylene yield by 0.55 wt% and total light olefins yield by 0.69 wt% in catalytic cracking of Canadian LGO (light gas oil), compared with the reference HZSM-5.
Keywords:ZSM-5;Alkali-treatment;Fe-Ti-loading modification;Catalytic cracking;Propylene
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