Journal of Siberian Federal University. Chemistry / Thermal Conversion of Mechanically Activated Aspen -Wood in Suband Supercritical Ethanol Medium

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2014 7 (3)
Authors
Baryshnikov, Sergei V.; Sharypov, Victor I.; Beregovtsova, Natalia G.; Taran, Oksana P.; Agabekov, Vladimir E.; Kuznetsov, Boris N.
Contact information
Baryshnikov, Sergei V.:Institute of Chemistry and Chemical Technology SB RAS 50-24 Akademgorodok, Krasnoyarsk, 660036, Russia; Sharypov, Victor I.:Institute of Chemistry and Chemical Technology SB RAS 50-24 Akademgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; E-mail: ; Beregovtsova, Natalia G.:Institute of Chemistry and Chemical Technology SB RAS 50-24 Akademgorodok, Krasnoyarsk, 660036, Russia; Taran, Oksana P.:Boreskov Institute of Catalysis SB RAS 5 pr. Lavrentieva, Novosibirsk, 630090, Russia; Agabekov, Vladimir E.:Institute of Chemistry of New Materials NAS of Belarus 36 Fr. Skaryna Str., Minsk, 220141, Republic of Belarus; Kuznetsov, Boris N.Institute of Chemistry and Chemical Technology SB RAS 50-24 Akademgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia
Keywords
aspen-wood; mechanical activation; thermal dissolution; sub- and supercritical ethanol
Abstract

The thermal conversion of mechanically activated aspen-wood was studied in sub- and supercritical ethanol medium at temperatures of 270 and 350 °C. It was found that the temperature and pressure have a significant influence on yield and composition of obtained products. Maximum degrees of wood conversion correspond to pressure 20 MPa and they are equal to 76 and 95 wt. % at process temperatures 270 and 350 °C, respectively. It was established that all main components of wood are exposed to thermal conversion at 270 °C. At elevated pressure (20 MPa) the hemicelluloses are depolymerised completely, lignin more than on 70 wt. %, cellulose – on 67 wt. %. At the process temperature 350 °C the total conversion of all wood components to gaseous, liquid and solid carbon products takes place. At this temperature the maximum yield of liquid products dissolved in ethanol corresponds to the pressure 20 MPa

Pages
455-463
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/13426