Journal
CHEMICAL PHYSICS LETTERS
Volume 715, Issue -, Pages 367-374Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2018.12.003
Keywords
Benzene hydrogenation; Power-Law model; Carbonaceous catalysts; Langmuir-Hinshelwood model
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Benzene hydrogenation in the BTX mixture over various carbonaceous catalysts was evaluated in the range of 130-190 degrees C and at the variable partial pressure of the hydrogen (2.3-5.2 Pa) and benzene content (2-8 vol%). Under these conditions, the best activity was obtained for Ni-graphene at 190 degrees C with over 94% conversion. The highest selectivity to cyclohexane (> 60%) is related to Ni-activated carbon at 170 degrees C. To determine the kinetics parameters, Power-Law and Langmuir-Hinshelwood models have been tested. These models, provided a good fit toward the experimental data and allowed to determine the kinetics parameters that are in good agreement with both models.
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