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Kinetic modeling of CuO/CeO2 and CuO/Nb2O5 as oxygen carriers in the production of syngas

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Abstract

Oxygen carriers such as CuO/CeO2 and CuO/Nb2O5 were found to have very good selectivity to syngas products when used in chemical looping reforming. The oxygen carriers with 10% CuO has been applied in partially oxidizing liquefied petroleum gas in a chemical looping reforming process at 800 °C and the kinetic model of the processes were developed and then validated with the experimental data. The results show that first order kinetic, 3D contraction and third order kinetic models gave best fits for CuO/CeO2 powder, CuO/CeO2 pellets and CuO/Nb2O5. These resulted in rate constants of 0.0836 s−1, 0.0202 s−1, 0.1075 s−1 and 0.0682 s−1 for CuO/CeO2 powder, CuO/CeO2 pellets, CuO/Nb2O5 powder and CuO/Nb2O5 pellets. Using the rate constants, the model results were found to give good correlations when compared to experimental data.

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Acknowledgements

I am very grateful to Petroleum Technology Development Fund (PTDF), Nigeria providing the fund needed to carry out the research work, and also Dr. A. Atta for his assistance in analyses of the product gases.

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  1. Department of Chemical Engineering, Ahmadu Bello University, Zaria, , Kaduna State, Nigeria

    Hassan A. Saddiq, Ibrahim A. Muhammed-Dabo, Abba Hamza & Saidu M. Waziri

  2. Department of Chemical Engineering, Modibbo Adama University, Yola, Adamawa State, Nigeria

    Hassan A. Saddiq

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Saddiq, H.A., Muhammed-Dabo, I.A., Hamza, A. et al. Kinetic modeling of CuO/CeO2 and CuO/Nb2O5 as oxygen carriers in the production of syngas. Reac Kinet Mech Cat 134, 727–742 (2021). https://doi.org/10.1007/s11144-021-02090-w

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