Kinetic Study on CO2 Reforming of Methane

Abstract

Abstract: The kinetics of CO2 reforming of methane has been studied at 976－1033K on a commercial
NiO/CaO/Al2O3 catalyst in a packed-bed continuous reactor. The reaction was carried out at
atmospheric pressure and CO2/CH4 ratio ＞ 2. The Hougen-Watson rate models were fitted to
experimental data assuming the disso ciative adsorption of methane as the rate-determining
step. The reaction rate showed an effective reaction order of about unity for CH4. The
apparent activity energy was found to be 104 kJ·mol-1. Therefore the kinetic reaction
parameters were determined and a possible reaction mechanism was proposed.

Key words: CH4 reforming, Ni catalysts, syngas

摘要： The kinetics of CO2 reforming of methane has been studied at 976－1033K on a commercial
NiO/CaO/Al2O3 catalyst in a packed-bed continuous reactor. The reaction was carried out at
atmospheric pressure and CO2/CH4 ratio ＞ 2. The Hougen-Watson rate models were fitted to
experimental data assuming the disso ciative adsorption of methane as the rate-determining
step. The reaction rate showed an effective reaction order of about unity for CH4. The
apparent activity energy was found to be 104 kJ·mol-1. Therefore the kinetic reaction
parameters were determined and a possible reaction mechanism was proposed.

关键词: CH4 reforming;Ni catalysts;syngas

C. E. Quincoces, M. G. González. Kinetic Study on CO₂ Reforming of Methane[J]. .

C. E. Quincoces, M. G. González. 甲烷的二氧化碳重整动力学研究[J]. CIESC Journal.

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Kinetic Study on CO₂ Reforming of Methane

甲烷的二氧化碳重整动力学研究

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