https://doi.org/10.15255/KUI.2015.035
Published: Kem. Ind. 64 (11-12) (2015) 603−610
Paper reference number: KUI-35/2015
Paper type: Original scientific paper
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A Novel FCC Catalyst Based on a Porous Composite Material Synthesized via an In Situ Technique

S. Q. Zheng, L. J. He, S. Ren, H. X. Yu and W. Zhu

Abstract

To overcome diffusion limitations and improve transport in microporous zeolite, the materials with a wide-pore structure have been developed. In this paper, composite microspheres with hierarchical porous structure were synthesized by an in situ technique using sepiolite, kaolin and pseudoboehmite as raw material. A novel fluid catalytic cracking (FCC) catalyst for maximizing light oil yield was prepared based on the composite materials. The catalyst was characterized by XRD, FT-IR, SEM, nitrogen adsorption-desorption techniques and tested in a bench FCC unit. The results indicated that the catalyst had more meso- and macropores and more acid sites than the reference catalyst, and thus can increase light oil yield by 1.31 %, while exhibiting better gasoline and coke selectivity.

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Keywords

FCC catalyst, hierarchical porous structure, in situ synthesis, catalytic properties