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Studies on styrene selective oxidation to benzaldehyde catalyzed by Cr-ZSM-5: Reaction parameters effects and kinetics

Paper ID Volume ID Publish Year Pages File Format Full-Text
41332 45885 2011 5 PDF Available
Title
Studies on styrene selective oxidation to benzaldehyde catalyzed by Cr-ZSM-5: Reaction parameters effects and kinetics
Abstract

The selective styrene oxidation to benzaldehyde was studied over Cr-ZSM-5 zeolite which was selected after probed a series of transition metal cations (chromium, cobalt, iron, zinc, manganese and cupper) using hydrogen peroxide as oxidant agent. The effects of various reaction parameters such as reaction time, catalyst mass, styrene/hydrogen peroxide molar ratio, solvent nature and reaction temperature effect were evaluated over it. Using the initial rate method, a first order with respect to styrene and oxidant concentrations was determined. An apparent activation energy of 14.54 kJ/mol was obtained.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (85 K)Download as PowerPoint slideHighlights► Transition metal cations modifying ZSM-5 as heterogeneous catalysts. ► Styrene selective oxidation to benzaldehyde. ► Cr-ZSM-5 presents best behavior as oxidation catalyst. ► Results confirm oxidation is first order for styrene and hydrogen peroxide. ► The estimate activation energy for styrene oxidation is 14.54 kJ/mol.

Keywords
Cr-ZSM-5; Styrene oxidation; Benzaldehyde; Kinetic parameters
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Studies on styrene selective oxidation to benzaldehyde catalyzed by Cr-ZSM-5: Reaction parameters effects and kinetics
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 400, Issues 1–2, 30 June 2011, Pages 117–121
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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