Detailed reaction kinetics for the dehydrogenation of methylcyclohexane over pt catalyst

Muhammad Usman; David Cresswell; Arthur Garforth

doi:10.1021/ie201539v

Detailed reaction kinetics for the dehydrogenation of methylcyclohexane over pt catalyst

Muhammad Usman^*, David Cresswell, Arthur Garforth

^*Corresponding author for this work

Petroleum and Chemical Engineering

Research output: Contribution to journal › Review article › peer-review

36 Citations (Scopus)

Abstract

Detailed reaction kinetics of the dehydrogenation of methylcyclohexane were studied over an in-house-prepared 1.0 wt % Pt/γ-Al ₂O ₃ catalyst. Experiments were conducted in a fixed-bed reactor for a wide range of operating conditions including reactions without hydrogen in the feed. Kinetic model equations were developed, and the experimental data were analyzed according to the power-law, Langmuir-Hinshelwood-Hougen-Watson (LHHW), and Horiuti-Polanyi kinetic mechanisms. The rate of loss of the first hydrogen molecule in the LHHW single-site surface reaction mechanism was found to be the rate-controlling step. Experiments with 1-methylcyclohexene confirmed that the rate-controlling step does not lie after the loss of the first hydrogen molecule.

Original language	English
Pages (from-to)	158-170
Number of pages	13
Journal	Industrial and Engineering Chemistry Research
Volume	51
Issue number	1
DOIs	https://doi.org/10.1021/ie201539v
Publication status	Published - Jan 11 2012

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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title = "Detailed reaction kinetics for the dehydrogenation of methylcyclohexane over pt catalyst",

abstract = "Detailed reaction kinetics of the dehydrogenation of methylcyclohexane were studied over an in-house-prepared 1.0 wt % Pt/γ-Al 2O 3 catalyst. Experiments were conducted in a fixed-bed reactor for a wide range of operating conditions including reactions without hydrogen in the feed. Kinetic model equations were developed, and the experimental data were analyzed according to the power-law, Langmuir-Hinshelwood-Hougen-Watson (LHHW), and Horiuti-Polanyi kinetic mechanisms. The rate of loss of the first hydrogen molecule in the LHHW single-site surface reaction mechanism was found to be the rate-controlling step. Experiments with 1-methylcyclohexene confirmed that the rate-controlling step does not lie after the loss of the first hydrogen molecule.",

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AU - Usman, Muhammad

AU - Cresswell, David

AU - Garforth, Arthur

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N2 - Detailed reaction kinetics of the dehydrogenation of methylcyclohexane were studied over an in-house-prepared 1.0 wt % Pt/γ-Al 2O 3 catalyst. Experiments were conducted in a fixed-bed reactor for a wide range of operating conditions including reactions without hydrogen in the feed. Kinetic model equations were developed, and the experimental data were analyzed according to the power-law, Langmuir-Hinshelwood-Hougen-Watson (LHHW), and Horiuti-Polanyi kinetic mechanisms. The rate of loss of the first hydrogen molecule in the LHHW single-site surface reaction mechanism was found to be the rate-controlling step. Experiments with 1-methylcyclohexene confirmed that the rate-controlling step does not lie after the loss of the first hydrogen molecule.

AB - Detailed reaction kinetics of the dehydrogenation of methylcyclohexane were studied over an in-house-prepared 1.0 wt % Pt/γ-Al 2O 3 catalyst. Experiments were conducted in a fixed-bed reactor for a wide range of operating conditions including reactions without hydrogen in the feed. Kinetic model equations were developed, and the experimental data were analyzed according to the power-law, Langmuir-Hinshelwood-Hougen-Watson (LHHW), and Horiuti-Polanyi kinetic mechanisms. The rate of loss of the first hydrogen molecule in the LHHW single-site surface reaction mechanism was found to be the rate-controlling step. Experiments with 1-methylcyclohexene confirmed that the rate-controlling step does not lie after the loss of the first hydrogen molecule.

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Detailed reaction kinetics for the dehydrogenation of methylcyclohexane over pt catalyst

Abstract

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