A full factorial experimental design was applied to the aromatization of propylene over HZSM-5 catalysts, to screen the significant factors and interactions of factors influencing the yields of benzene, toluene, p-xylene, o-xylene and total BTX. The factors studied were Si:Al ratio of HZSM-5, temperature, propylene feed concentration and catalyst amount. It was found out that Si:Al ratio of HZSM-5 (negative influence) and the catalyst amount (positive influence) were the most significant factors influencing all the responses, while temperature had significant positive effect on all the responses except p-xylene. We also found an interesting interaction between propylene feed concentration and catalyst amount, significantly influencing the yields of benzene, toluene as well as total BTX. Overall we concluded that a statistical approach is necessary to study the interaction effects of factors in propylenearomatization reaction.

Determination of significant factors influencing the aromatization of propylene via statistical path

241st National Meeting (2011)

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