Реферат: High-loaded nickel catalysts (HLNC) modified with tin were synthesized and evaluated for the dehydrogenation of methylcyclohexane (MCH), which serves as a liquid organic hydrogen carrier. By optimizing the catalyst composition and reduction temperature, a dehydrogenation selectivity of >99.0% was achieved at a MCH conversion rate of 92% and a WHSV of 6.0 h¹. The stability of the Sn-modified HLNC was confirmed through a long-term (100-hour) catalyst test. The genesis of the HLNC during Sn modification and reductive activation in hydrogen was investigated. It was found that activation at temperatures above 450°C resulted in a uniform distribution of Sn, primarily forming solid NiSn solutions with a crystal lattice similar to metallic nickel. The formation of these solid solutions decreased the adsorptive properties related to the reaction product, toluene, which consequently enhanced the selectivity of MCH dehydrogenation.

Библиографическая ссылка: Stepanenko S.A. , Koskin A.P. , Yakovlev V.A.
Selective Dehydrogenation of Methylcyclohexane Using Tin-Modified High-Loaded Nickel Catalysts
В сборнике Physical Chemistry 2024 : proceedings. Vol. 1 / 17th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 23-27, 2024 Belgrade, Serbia. – Society of Physical Chemists of Serbia., 2024. – Т.1. – C.61-64. – ISBN 978-86-82475-44-6. DOI: 10.46793/Phys.Chem24I.061S

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