Unraveling the Mo/HZSM-5 reduction pre-treatment effect on methane dehydroaromatization reaction
Lopez-Martin, Angeles 1Caballero, Alfonso 1Colon, Gerardo1
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作者信息
1. Univ Seville
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Abstract
Reduction pre-treatment at different temperatures were performed over Mo/HZSM-5 system before methane dehydroaromatiztion reaction. We have shown the crucial effect of reduction temperature on the final catalytic performance. Outstanding improvement in the aromatics conversion has been attained. Thus, H-2 formation form methane cracking reaction seems to be hindered for pre-treated catalysts. As a consequence, the deposition of coke in these samples appeared also notably suppressed. The optimum performance has been achieved for reduction pre-treatment at 550 degrees C. For this temperature, we have observed that the fraction of reduced Mo species is higher.
NSTL
Elsevier