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Synthesis and application of a porous composite material synthesized via an in situ technique

Published online by Cambridge University Press:  02 January 2018

Shu-Qin Zheng*
Affiliation:
Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, China Hunan Province Key Laboratory of Speciality Petrochemicals Catalysis and Separation, Yueyang 414000, Hunan, China
Shao Ren
Affiliation:
Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, China
Hong-Xia Yu
Affiliation:
Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, China
Jian-Ce Zhang
Affiliation:
Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, China Hunan Province Key Laboratory of Speciality Petrochemicals Catalysis and Separation, Yueyang 414000, Hunan, China
Wei Zhu
Affiliation:
Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, Hunan, China

Abstract

Novel composite materials with wide pores were synthesized by an in situ technique using kaolin, palygorskite and pseudoboehmite as raw materials. The characterization results indicated that the synthesis components and conditions influenced the micro-, meso- and macro-porosity of the composite materials. The composites contained 53.5% zeolite Y and had much larger specific surface areas and pore volumes as well as significant hydrothermal stability. Fluid catalytic cracking (FCC) catalysts were prepared based on the composite materials. The results indicated that the as-prepared catalysts possessed a unique pore structure which assisted in diffusion-controlled reactions. In addition, the attrition resistance, activity and hydrothermal stability of the catalyst studied were superior to those of a reference catalyst. The catalyst studied also exhibited excellent nickel and vanadium passivation performance, strong ‘bottoms upgrading’ selectivity and better gasoline and coke selectivity.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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