Journal of Industrial and Engineering Chemistry, Vol.33, 80-90, January, 2016
Kinetic modeling of C2.C7 olefins interconversion over ZSM-5 catalyst
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The kinetics of C2.C7 olefins interconversion were studied by feeding individual olefin into industrial ZSM-5 catalyst at temperatures of 400-490 8C, space time of 0.0046-0.34 h and partial pressure of 13.1 kPa. A kinetic model involving oligomerization, cracking and aromatization of olefins was established. The results showed that the calculated apparent activation energy was negative for oligomerization reactions and positive for cracking reactions. The proposed kinetic model was able to predict the product concentrations in the C2-C7 olefins interconversion over ZSM-5 catalyst, with R2 values ranged from 0.969 to 0.996 for the major species.
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