Catalytic Activity of CoMo Sulfide Catalysts Supported on Natural and Synthetic Aluminosilicates in Hydrodesulfurization of 4,6-Dimethyldibenzothiophene

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发表日期：

2025年4月1日

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N. A. Vinogradov,
V. I. Elizarova,
V. A. Klimovskii,
E. S. Abramov,
G. O. Zasypalov,
E. M. Smirnova,
A. V. Vutolkina,
A. A. Pimerzin,
A. P. Glotov

摘要

Abstract

CoMo sulfide catalysts supported on an MCM-41-type ordered mesoporous silica and on a hierarchical aluminosilicate material based on halloysite nanotubes (MCM-41@HNT) were synthesized by incipient wetness impregnation. Both the supports and related catalysts were characterized by low-temperature nitrogen adsorption–desorption, energy dispersive X-ray fluorescence analysis, FTIR spectroscopy of adsorbed pyridine, transmission electron microscopy, and X-ray photoelectron spectroscopy. The catalyst samples were further tested in hydrodesulfurization of 4,6-dimethyldibenzothiophene. The MCM-41@HNT-supported catalyst exhibited the greatest activity in the main reaction (hydrodesulfurization) due to its hierarchical porous structure and the presence of high-temperature Brønsted acid sites.