Optimized benzaldehyde production over a new Co-ZSM-11 catalyst: Reaction parameters effects and kinetics

• A novel and highly active Co-ZSM-11 zeolite was prepared and characterized.
• The reaction parameters of the styrene partial oxidation were optimized.
• A kinetic study was performed by using the initial rates method.
• The Arrhenius parameters for this reaction were estimated.

An efficient Co-ZSM-11 catalyst has been synthesized for benzaldehyde production by the selective styrene oxidation. Reaction parameters such as catalyst mass, reaction temperature, molar ratio styrene/hydrogen peroxide and stirring speed were optimized, by performing the styrene oxidation reaction in a stirred batch system with fine particles of Co-ZSM-11 in suspension under microwave heating. A kinetic study was done by using the initial rate method and the Arrhenius parameters were estimated. This catalyst presents a higher reaction rate about 30% with respect of those found in literature and a higher selectivity towards benzaldehyde about 80% at optimal conditions.

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