Issue 82, 2014

Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

Abstract

The determination of utilization degree and effective diffusivity is very important to the design of a new hierarchical zeolite catalyst. By employing Thiele modulus analysis in the cumene cracking reaction, it is found the effective diffusion length in hierarchical MFI zeolite was obviously shortened. The enhanced adsorption capacity and accelerated diffusion rate of cumene molecules in hierarchical MFI zeolite remarkably promoted accessibility to the internal surface and obviously improved the utilization of acid sites.

Graphical abstract: Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

Supplementary files

Article information

Article type
Communication
Submitted
01 May 2014
Accepted
13 Aug 2014
First published
16 Sep 2014

RSC Adv., 2014,4, 43752-43755

Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

J. Zhou, Z. Liu, Y. Wang, H. Gao, L. Li, W. Yang, Z. Xie and Y. Tang, RSC Adv., 2014, 4, 43752 DOI: 10.1039/C4RA03986F

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