Registration Number
0226U003648,
(0125U002049)
, R & D reports
Title
Bimetallic zeolite catalysts for the processes of hydrodeoxygenation of secondary bio-raw materials into jet fuel components
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Визначення впливу умов синтезу на структурні та текстурні характеристики біметалічних цеолітних каталізаторів
Head
Shcherban Nataliia D., Доктор хімічних наук
Registration Date
29-04-2026
Organization
L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine
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Creation of highly active bimetallic zeolite catalysts for hydrodeoxygenation of secondary bio-raw materials – oxygen-containing unsaturated cyclic compounds, fatty acids, etc. – into jet fuel components.
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The study of the aldol condensation and fission pathways in the cross-aldol reaction of benzaldehyde and 3-pentanone showed that both pathways are significantly affected by the strength of the acid sites. For the sulfonic acids family, the condensation rate constants increased with increasing acid strength, expressed as calculated Gibbs deprotonation energies. For the BEA topology family of zeolites isomorphously substituted with Al, Ga, Fe, or B, the fission rates increased with increasing acid strength, expressed as calculated Gibbs deprotonation energies or heats of adsorption of isopropylamine, which decreased in the following order: Al (176 ± 3 kJ/mol) > Fe (166 ± 3 kJ/mol) > Ga (162 ± 3 kJ/mol) > B (144 ± 1 kJ/mol).
A set of ruthenium nanoparticles supported on aluminosilicate carriers were synthesized and investigated in the hydrocracking of n-hexadecane in a continuous fixed-bed reactor to obtain compounds related to jet fuels. The studied materials demonstrated high catalytic activity at relatively low temperatures (200–240 °C), which led to the formation of predominantly linear C10–C15 alkanes. The catalytic activity in terms of n-hexadecane conversion has the following order: Ru/Al-MCF ˃ Ru/Al-SBA-15 ˃ Ru/Al-MCM-41 and correlates with the density of Brønsted acid sites, calculated as the ratio of their concentration to the mesopore specific surface area.
Product Description
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Mykhailo M. Kurmach
Ivan D. Kopa
Dmytro V. Kyryliuk
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2026-04-29
