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Synthesis, characterization of hierarchical ZSM-5 zeolite catalyst and its catalytic performance for phenol tert-butylation reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
52139 46865 2008 5 PDF Available
Title
Synthesis, characterization of hierarchical ZSM-5 zeolite catalyst and its catalytic performance for phenol tert-butylation reaction
Abstract

A hierarchical ZSM-5 zeolite was prepared under hydrothermal conditions through polystyrene (PS) colloidal spheres and tetrapropylammonium hydroxide (TPAOH) dual templates method. The physical and acid properties of the hierarchical ZSM-5 zeolite were characterized by XRD, SEM, N2 adsorption, 27Al-MAS NMR and NH3-TPD techniques. Catalytic tests show that the hierarchical ZSM-5 zeolite catalyst exhibits high catalytic activity for alkylation of phenol with tert-butanol. The high phenol conversion and 2,4-di-TBP selectivity are mainly assigned to the presence of the hierarchical porosity and strong acidity of the pore walls. The macropores offer easier transport and access to the active sites and the macroporous walls built by nano-ZSM-5 crystals provide the acidic sites for reaction.

Keywords
Hierarchical ZSM-5 zeolite; Alkylation; Phenol; tert-Butyl alcohol
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Synthesis, characterization of hierarchical ZSM-5 zeolite catalyst and its catalytic performance for phenol tert-butylation reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 6, 31 March 2008, Pages 1272–1276
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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