Abstract
MFI and MEL zeolites with different crystal sizes and close Si/Al ratios were synthesized by hydrothermal crystallization. The crystal size was controlled by tuning the template content in the reaction mixture. The resultant zeolites were coated with Pt (1 wt %) by incipient wetness impregnation. The catalytic performance of the catalysts prepared was evaluated in n-hexadecane dewaxing. Zeolites Pt-MEL and Pt-MFI with larger crystals exhibit lower catalytic activity due to diffusion limitations. The crystal size, as well as the structure of the zeolite (MEL or MFI), do not significantly affect the product distribution in the n-hexadecane dewaxing reaction.
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This study was financially supported by the Russian Foundation for Basic Research (project no. 20-33-90108).
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I.I. Ivanova, a co-author, is the Editor-in-Chief at the Sovremennye Molekulyarnye Sita (Advanced Molecular Sieves) Journal. The other co-authors declare no conflict of interest requiring disclosure in this article.
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Vorobkalo, V.A., Bachurina, D.O., Popov, A.G. et al. Influence of the Crystal Size on the Catalytic Properties of MEL and MFI Zeolites in n-Hexadecane Dewaxing. Pet. Chem. 62, 879–885 (2022). https://doi.org/10.1134/S0965544122070052
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DOI: https://doi.org/10.1134/S0965544122070052