Microwave pyrolysis of cellulosic materials for the production of anhydrosugars |
| |
Authors: | Masakatsu Miura Harumi Kaga Takashi Yoshida Koji Ando |
| |
Institution: | (1) National Institute of Advanced Industrial Science and Technology (AIST), Toyohira-ku, 062-8517 Sapporo, Japan;(2) Polymer Science Department, Graduate School of Science, Hokkaido University, Kita-ku, 060-0810 Sapporo, Japan;(3) Department of Applied Chemistry, Muroran Institute of Technology, 050-8585 Muroran, Japan |
| |
Abstract: | Large-scale microwave rapid pyrolysis of cellulosic materials has been investigated. Levoglucosan (1,6-anhydro- -d-glucopyranose) was obtained from a larch log as the main anhydrosugar in 2.6% yield on the basis of dry wood weight. This yield would be much higher than that obtainable by conventional pyrolysis in the largescale reaction. Levoglucosenone (1,6-anhydro-3,4-dideoxy- -D-glycero-hex-3-enopyranos-2-ulose) was found to be produced in one-quarter the amount of levoglucosan. Other anhydrosugars, such as mannosan (1,6-anhydro- -D-mannopyranose), galactosan (1,6-anhydro- -d-galactopyranose), and xylosan (1,4-anhydro- -d-xylopyranose), were also confirmed to be produced as minor components depending on the proportion of the monosaccharide content in the larch. When microwave pyrolysis of used papers and filter papers was performed, the yields of levoglucosan were about 6% and 12%, respectively, suggesting that a higher content of cellulose gives a larger amount of levoglucosan. |
| |
Keywords: | Microwave pyrolysis Cellulosic material Anhydrosugars Levoglucosan Mannosan |
本文献已被 SpringerLink 等数据库收录! |
|