2001 Fiscal Year Final Research Report Summary

Effective utilization of old papers by new pyrolysis system

Research Project

Project/Area Number	11558069
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	展開研究
Research Field	環境保全
Research Institution	Kitami Institute of Technology (2000-2001) Hokkaido University (1999)
Principal Investigator	YOSHIDA Takashi Kitami Institute of Technology, Appl. Chem. Dept., Professor, 工学部, 教授 (40166955)
Co-Investigator(Kenkyū-buntansha)	MIURA Masakatsu National Institute of Advanced Industrial Science and Technology, Senior Researcher, 主任研究官
Project Period (FY)	1999 – 2001
Keywords	Old paper / Microwave / Cellulose / Levoglucosan / Recycling / Sustainable
Research Abstract	Effective utilizations of forest resources as reproducing resources are important problems for the protection of global environment. We found that the microwave pyrolysis (with low energy and low emissions), which apparatus was newly developed by HNIRI, of larch lumber (60 - 100 mm in diameter x 100 mm in height, 80 - 320 g) gave anhydrosugars in relatively good yields, that is, 1,6-anhydro-β-D-glucopyranose (levoglucosan) was isolated from the pyroligneous tar in 5 - 8 % yields. Also we obtained the anhydrosugar by the microwave pyrolysis of old or used papers. Ring-opening polymerization of the anhydrosugars gave sulfated polysaccharides having anti-HIV activity. The results of microwave pyrolysis and sulfated polysaccharides having anti-HIV activity will be presented.