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Effect of Acidic and Basic Species on the Hydrodesulfurization of Methyl-Substituted Dibenzothiophenes

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Abstract

Acidic components when added to Mo-based catalysts enhance the activity of the catalysts for the hydrodesulfurization (HDS) of methyl-substituted dibenzothiophenes (DBTs), the major refractory compounds included in gas oil. However, the enhancing effect of the acidic species is frequently retarded by impurities present in the gas oil, particularly by basic nitrogen compounds. Accordingly, evaluations of the performance of such acid-modified catalysts in HDS should take into account the combined effects of acidic and basic components. The performance is strongly dependent on the types of DBT compounds, acidic and basic species involved in the reaction, and promoters of the Mo-based catalysts.

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Authors and Affiliations

  1. School of Chemical Engineering and Institute of Chemical Processes, Seoul National University, San 56-1, Shillim-dong, Kwanak-ku, Seoul, 151-744, Korea

    Sang Heup Moon

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  1. Sang Heup Moon
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Moon, S.H. Effect of Acidic and Basic Species on the Hydrodesulfurization of Methyl-Substituted Dibenzothiophenes. Catalysis Surveys from Asia 7, 11–20 (2003). https://doi.org/10.1023/A:1023476406801

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  • DOI: https://doi.org/10.1023/A:1023476406801

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