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Kinetics of steam reforming of methane on Rh?Ni/MgAl 2 O 4 catalyst

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Abstract

The kinetics of the steam reforming of methane was studied on 0.5 wt% Rh?15 wt% Ni/MgAl 2 O 4 catalyst. The variation of methane conversion with contact time ( \({\text{W}}/{\text{F}}_{{{\text{CH}}_{4} ,0}}\) ) was recorded in the temperature range of 450 to 600?°C, at three different pressures of 1, 4 and 6?bar, and at steam to carbon ratio (S/C) of 2, 5 or 6. Before the kinetic experiments, a check for external and internal mass transfer limitations was also performed. The experimentally obtained data was tested for different earlier proposed kinetic models, and parameters were calculated using non-linear least square optimization. Among the different kinetic models tested, the kinetic model proposed by Al-Ubaid and Wolf was found to be the most suitable. Reaction order of 0.21 for methane and 0.16 for water with an apparent activation energy of 75.3?kJ/mol was obtained.

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Acknowledgements

The financial support provided for this study by Science and Engineering Research Board (SERB), Government of India under Grant No. SB/S3/CE/066/2013 is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh, Kanpur, 208016, India

    Sanjay Katheria?&?Goutam Deo

  2. School of Engineering & Applied Science, Ahmedabad University, Navrangpura, Ahmadabad, Gujarat, 380009, India

    Deepak Kunzru

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  1. Sanjay Katheria
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  2. Deepak Kunzru
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  3. Goutam Deo
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Correspondence to Goutam Deo .

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Katheria, S., Kunzru, D. & Deo, G. Kinetics of steam reforming of methane on Rh?Ni/MgAl 2 O 4 catalyst. Reac Kinet Mech Cat 130 , 91?101 (2020). https://doi.org/10.1007/s11144-020-01767-y

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