期刊
MOLECULES
卷 27, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/molecules27051494
关键词
lignin; lignosulfonate; phenol; hydrogenation; Pt; Ru-supported catalysts
Hydrogenation of phenol and hydrolysis lignin in aqueous solutions was studied with different catalysts. The presence of Ru/C catalyst was found to promote the hydrogenation of hydrolysis lignin.
Hydrogenation of phenol in aqueous solutions on Pt-Ni/SiO2, Pt-Ni-Cr/Al2O3, Pt/C, and Ru/C catalysts was studied at temperatures of 150-250 degrees C and pressures of 40-80 bar. The possibility of hydrogenation of hydrolysis lignin in an aqueous medium in the presence of a Ru/C catalyst is shown. The conversion of hydrolysis lignin and water-soluble sodium lignosulfonate occurs with the formation of a complex mixture of monomeric products: a number of phenols, products of their catalytic hydrogenation (cyclohexanol and cyclohexanone), and hydrogenolysis products (cyclic and aliphatic C-2-C-7 hydrocarbons).
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