Abstract
To solve the social and environmental problem of enormous drift wood from typhoons and to promote the rate of bioenergy utilization, the purpose of this study are to use certain of potential physical and chemical methods to develop competitive multiple products in the fields of bioenergy and secondary materials. The effects of this study can be to increase the value-added of drift wood, to save energy consumption and to reduce the emission of carbon dioxide. The effects simultaneously are to contribute to environment protect and resource reutilization.