Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.3390/catal12101177

Ключевые слова: ethanol, flax shives, guaiacyl propans, hydrogenation, mass transfer, ni/c catalyst, sibunit

Аннотация: Hydrogenation of flax shives in ethanol over bifunctional Ni/C catalysts at 225 °C has been studied. It has been shown that the 10% Ni/C catalyst enhances the yield of monomeric products from 1.1 to 9.7 wt %, decreases the solid product content from 45 to 35 wt %, and increases the degree of delignification to 91%. The main monomeric compounds obtained during hydrogenation are propyl guaiacol and propenyl guaiacol. It has been established that an increase in the mass transfer intensity via increasing the stirring rate or decreasing the catalyst grain size leads to an increase in the total yield of monomeric compounds and the propanol guaiacol yield. Alkaline and acid pretreatment increases the cellulose content in the solid product from 42 to 73 wt %. The proposed sequential scheme of the transformation and formation of monomeric products over the bifunctional nickel catalyst is lignin—coniferyl alcohol—4-propanol guaiacol—4-propenyl guaiacol—4-propyl guaiacol. © 2022 by the authors.

Журнал: Catalysts

Выпуск журнала: Vol. 12, Is. 10

Номера страниц: 1177

ISSN журнала: 20734344

Издатель: MDPI

• Miroshnikova A.V. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation, Department of Non-Ferrous Metals and Materials Science, Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041, Russian Federation)
• Kazachenko A.S. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation, Department of Non-Ferrous Metals and Materials Science, Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041, Russian Federation, Department of Biological Chemistry with Cources of Pharmaceutical, Medical and Toxicological Chemistry, Krasnoyarsk State Medical University, st. Partizan Zheleznyak, bld. 1, Krasnoyarsk, 660022, Russian Federation)
• Tarabanko V.E. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation)
• Sychev V.V. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation, Department of Non-Ferrous Metals and Materials Science, Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041, Russian Federation)
• Skripnikov A.M. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation, Department of Non-Ferrous Metals and Materials Science, Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041, Russian Federation)
• Mikhlin Y.L. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation)
• Kosivtsov Y. (Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, 22 nab. A. Nikitina, Tver, 170026, Russian Federation)
• Chudina A.I. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation)
• Taran O.P. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 24, Krasnoyarsk, 660036, Russian Federation, Department of Non-Ferrous Metals and Materials Science, Siberian Federal University, pr. Svobodny 79, Krasnoyarsk, 660041, Russian Federation)

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