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Reactivity of sulfur compounds in FCC decant oils for hydrodesulfurization over CoMoS2/Al2O3 catalysts

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Abstract

CoMoS2/Al2O3 catalysts prepared by adding citric acid (CA) were synthesized and applied tor hydrodesulfurization (HDS) of fluid-catalytic cracking decant-oils (FCC-DO). The HDS of FCC-DO was carried out in an autoclave batch reactor at 653 K and 9.4 MPa H2. The structural properties of the catalysts were characterized by N2 physisorption, X-ray absorption fine structure spectroscopy (XAFS), and transmission electron microscopy (TEM). The S compounds in FCC-DO have been classified into three groups in terms of the reactivity of HDS. The Co K-edge XANES analysis confirmed the formation of the Co-Mo-S phase with the addition of CA, contributing to better activity in the HDS of FCC-DO.

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Acknowledgement

The authors acknowledge the financial support from the National Research Foundation of Korea (NRF-2019R1A2C2009999) and the Ministry of Trade, Industry & Energy of Korea (MOTIE-10082582).

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Authors and Affiliations

  1. Laboratory of Advanced Catalysis for Energy and Environment, Department of Chemical Engineering, Dankook University, 152 Jukjeonro, Yongin, 16890, Korea

    Jihyun Kim, Jung-Geun Jang & Yong-Kul Lee

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  1. Jihyun Kim
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  2. Jung-Geun Jang
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  3. Yong-Kul Lee
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Correspondence to Yong-Kul Lee.

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Kim, J., Jang, JG. & Lee, YK. Reactivity of sulfur compounds in FCC decant oils for hydrodesulfurization over CoMoS2/Al2O3 catalysts. Korean J. Chem. Eng. 38, 1179–1187 (2021). https://doi.org/10.1007/s11814-021-0763-y

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  • DOI: https://doi.org/10.1007/s11814-021-0763-y

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