Investigation of the Process of Microcrystalline Cellulose Hydrogenation in the Water Medium in the Presence of Catalysts NiCu / SiO2 and NiCuMo / SiO2

Full text (.pdf)
Issue
Химия. Chemistry. 2016 9 (2)
Authors
Kuznetsov, Boris N.; Sharypov, Victor I.; Baryshnikov, Sergei V.; Beregovtsova, Natalia G.; Yakovlev, Vadim A.
Contact information
Kuznetsov, Boris N.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; E-mail : ; Sharypov, Victor I.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Baryshnikov, Sergei V. : Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Beregovtsova, Natalia G.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Yakovlev, Vadim A.: Boreskov Institute of Catalysis SB RAS 5 Lavrentieva, Novosibirsk, 630090, Russia
Keywords
microcrystalline cellulose; hydrogenation; hydrogenation; aqueous medium; catalysts; NiCu/SiO2; NiCuMo/SiO2; mechanochemical treatment; sorbitol; 5-hydroxymethylfurfural
Abstract

The regularities of microcrystalline cellulose (MCC) hydrogenation in a water medium at 185 ° C in the presence of NiCu / SiO2 and NiCuMo / SiO2 catalysts were studied. It has been found that the preliminary mechanochemical treatment in the planetary mill AGO-2 reduces the degree of MCC crystallinity from 75 to 30 % and increases by 2 times the MCC conversion and the yield of soluble oligosaccharides in the process of catalytic hydrogenation. For all studied catalysts the increase of hydrogenation process duration from 1 to 5 hours rises the yield of sorbitol and 5-hydroxymethylfurfural and reduces the yield of glucose. The maximum yield of sorbitol (12 wt. %) was obtained in the presence of NiCuMo / SiO2 catalyst

Pages
230-242
Paper at repository of SibFU
http://elib.sfu-kras.ru/handle/2311/26410