Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.3390/polym15244722

Ключевые слова: pine ethanol lignin, supercritical ethanol, thermocatalytic conversion, catalysts, NiCu/SiO2, NiCuMo/SiO2, liquid products, propyl guaiacol, methyl guaiacol

Аннотация: <jats:p>The process of thermocatalytic conversion of pine ethanol lignin in supercritical ethanol was studied over NiCu/SiO2 and NiCuMo/SiO2 catalysts bearing 8.8 and 11.7 wt.% of Mo. The structure and composition of ethanol lignin and the products of its thermocatalytic conversion were characterized via 2D-HSQC NMR spectroscopy, GПоказать полностьюC-MC. The main aromatic monomers among the liquid products of ethanol lignin conversion were alkyl derivatives of guaiacol (propyl guaiacol, ethyl guaiacol and methyl guaiacol). The total of the monomers yield in this case was 12.1 wt.%. The temperature elevation up to 350 °C led to a slight decrease in the yield (to 11.8 wt.%) and a change in the composition of monomeric compounds. Alkyl derivatives of pyrocatechol, phenol and benzene were observed to form due to deoxygenation processes. The ratio of the yields of these compounds depended on the catalyst, namely, on the content of Mo in the catalyst composition. Thus, the distribution of monomeric compounds used in various industries can be controlled by varying the catalyst composition and the process conditions.</jats:p>

Журнал: Polymers

Выпуск журнала: Т.15, №24

Номера страниц: 4722

ISSN журнала: 20734360

Место издания: Basel

Издатель: MDPI

• Miroshnikova Angelina V. (Institute of Non-Ferrous Metals and Material Science, Department of Analytical and Organic Chemistry, Siberian Federal University)
• Baryshnikov Sergey V. (Institute of Chemistry and Chemical Technology Siberian Branch, Russian Academy of Sciences, FRC Krasnoyarsk Science Center SB RAS)
• Malyar Yuriy N. (Institute of Non-Ferrous Metals and Material Science, Department of Analytical and Organic Chemistry, Siberian Federal University)
• Li Xiaomin (Institute of Non-Ferrous Metals and Material Science, Department of Analytical and Organic Chemistry, Siberian Federal University)
• Alekseeva Maria V. (Federal Research Center “Boreskov Institute of Catalysis”)
• Kuznetsov Boris N. (Institute of Non-Ferrous Metals and Material Science, Department of Analytical and Organic Chemistry, Siberian Federal University)
• Taran Oxana P. (Federal Research Center “Boreskov Institute of Catalysis”)

• Ядро РИНЦ (eLIBRARY.RU)