Abstract: The authors study the effect of the tungsten oxide in the supports of 0.5% Pt/WOx-Al2O3 catalysts on their acidity, deposited platinum dispersity, and catalytic properties in the hydrodeoxygenation of sunflower oil. It is shown that the of Brønsted acid sites on its surface grows, and the dispersity of deposited platinum in the ready catalyst is reduced when the content of the modifier is increased. The studied samples ensure complete sunflower oil conversion in a hydrogen atmosphere at a liquid weight hourly space velocity (WHSV) of 1 h−1, a temperature of 380°C, and a total pressure of 4 MPa the composition of the support. A nearly stoichiometric yield of C5+ products at a level of 82–86 wt % is attained. The acidic properties of the 0.5% Pt/WOx-Al2O3 system determine the possibility for synthesizing the components of diesels with high contents of iso-alkanes as a result of sunflower oil hydrodeoxygenation. Using a catalyst with a nominal tungsten content of 15 wt % WO3 brings the content of iso-paraffins up to 74% with complete conversion of the initial feedstock for no less than 24 h.

Cite: Nepomnyashchii A.A. , Yurpalov V.L. , Buluchevskiy E.A. , Drozdov V.A. , Gulyaeva T.I. , Mironenko R.M. , Lavrenov A.V.
Hydrodeoxygenation of Sunflower Oil on Pt/WOx-Al2O3 Catalyst
Catalysis in Industry. 2024. V.16. N2. P.187-195. DOI: 10.1134/s2070050424700090 WOS Scopus OpenAlex

Original: Непомнящий А.А. , Юрпалов В.Л. , Булучевский Е.А. , Дроздов В.А. , Гуляева Т.И. , Мироненко Р.М. , Лавренов А.В.
Гидродеоксигенация растительного масла на катализаторе Pt/WOx-Al2O3
Катализ в промышленности. 2023. Т.23. №5. С.35-44. DOI: 10.18412/1816-0387-2023-5-35-44 РИНЦ OpenAlex

Dates:

Submitted:	May 17, 2023
Accepted:	Jun 15, 2023
Published print:	May 27, 2024

Identifiers:

Web of science:	WOS:001233407500003
Scopus:	2-s2.0-85194853256
OpenAlex:	W4399045536

Citing: Пока нет цитирований

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