A Study on Ce-Fe Oxygen Carrier for Chemical Looping Oxidative Dehydrogenation 


Vol. 31,  No. 1, pp. 65-72, Mar.  2025
10.7464/ksct.2025.31.1.65


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  Abstract

In this study, the effect of adding Ce to Fe-based oxygen carriers on the ethylene selectivity of chemical looping oxidative dehydrogenation (CL-ODH) was investigated. A comparative analysis between the Ce-added oxygen carrier and the conventional Fe₂O₃ carrier revealed that the Ce-added oxygen carrier exhibited reduced COₓ selectivity and enhanced ethylene selectivity. Through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), H₂-temperature programmed reduction (H₂- TPR), and thermogravimetric analysis (TGA), it was confirmed that the addition of Ce regulates the reduction rate of Fe oxides. This regulation contributes to the stable control of oxygen mobility, thereby suppressing over-oxidation and improving the selectivity of the CL-ODH reaction. The results of this study suggest that Ce can serve as an effective additive for enhancing ethylene selectivity in Fe-based oxygen carriers for CL-ODH processes. The results also provide fundamental insights for further development of high- efficiency oxygen carriers in the future.

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  Cite this article

[IEEE Style]

S. J. Park, S. H. Baek, H. D. Kim, J. M. Sohn, "A Study on Ce-Fe Oxygen Carrier for Chemical Looping Oxidative Dehydrogenation," Clean Technology, vol. 31, no. 1, pp. 65-72, 2025. DOI: 10.7464/ksct.2025.31.1.65.

[ACM Style]

Sang Jun Park, Seung Hun Baek, Hyang Dong Kim, and Jung Min Sohn. 2025. A Study on Ce-Fe Oxygen Carrier for Chemical Looping Oxidative Dehydrogenation. Clean Technology, 31, 1, (2025), 65-72. DOI: 10.7464/ksct.2025.31.1.65.

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eISSN : 2288 - 0690

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