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Mathematical Modeling of CO2 Reforming of Methane with Reverse Water-Gas Shift Reaction

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Abstract

Synthesis gas is the cornerstone of many chemical processes for manufacturing a broad range of petrochemical products. In this work, a mathematical model was developed for investigation of the CO2 reforming of methane in a catalytic packed bed reactor. To simulate the reformer, a pseudo homogenous two-dimensional mathematical model was developed and the resulting nonlinear second order partial differential equations were solved using the finite difference method. It was assumed that equilibrium reverse water-gas shift reaction always takes place in the reactor to adjust H2/CO ratio (≤1). The effect of operating conditions, including bulk density, porosity, inlet gas and wall temperature, reactor diameter, total molar flow of gas and inlet CH4/CO2 ratio on the reactor performance were investigated. Finally, the study investigated the effect of H2/CO ratio on the outlet synthesis gas product at the range of 0.7–1. The validity of the model was investigated and the deviation between the model results and the experimental data was acceptable.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Department of Chemical Engineering, Amirkabir University of Technology, 159145, Tehran, Iran

    Ahmad Reza Rahimi, Habib AleEbrahim & Morteza Sohrabi

  2. Chemical Engineering Department, Faculty of Petroleum and Petrochemical Engineering, Hakim Sabzevari University, Sabzevar, Iran

    Seyed Mohammad Mahdi Nouri

Authors
  1. Ahmad Reza Rahimi
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  2. Habib AleEbrahim
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  3. Morteza Sohrabi
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  4. Seyed Mohammad Mahdi Nouri
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Contributions

Ahmad Reza Rahimi: developing the mathematical model and MATLAB code.

Habib Ale Ebrahim: supervision, conceptualization.

Morteza Sohrabi: supervision, conceptualization.

Seyed Mohammad Mahdi Nouri: writing the manuscript, data analyzing.

Corresponding author

Correspondence to Seyed Mohammad Mahdi Nouri.

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The authors of this work declare that they have no conflicts of interest.

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Rahimi, A.R., AleEbrahim, H., Sohrabi, M. et al. Mathematical Modeling of CO2 Reforming of Methane with Reverse Water-Gas Shift Reaction. Kinet Catal 64, 578–587 (2023). https://doi.org/10.1134/S0023158423050087

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  • DOI: https://doi.org/10.1134/S0023158423050087

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