In order to promote energy autonomy in Higashihiroshima, it is necessary to spread renewable energy suitable for Higashihiroshima and to reduce the total energy consumption promoting the energy saving. Review the possibility of woody biomass, a renewable energy suitable for Higashi-Hiroshima, we introduce an attempt to aim at the expansion.

By an accident in the Fukushima first Nuclear Power Plant with the Tohoku-Pacific Ocean Earthquake that occurred in 2011, radioactive material pollution occurred in the wide range. This study was conducted for reduction of the pollution biomass and development of the technique to change biomass into energy by using the methane fermentation method.

Because the use of the real radioactive material pollution biomass was difficult at this stage, I used the thing which added nonradioactive cesium (as CsCl 10 mg/L) in a pulverized thing of the cedar, grass and rice straw for pollution biomass.

Supercritical water gasification (SCWG) can effectively decompose and gasify wet biomass. SCWG of biomass has the problems such as the inhibition of gasification by lignin and the blocking of reactor by char. It is difficult to supply hydrogen into supercritical water. One possibility to supply hydrogen is to send formic acid which will decompose and produce hydrogen in supercritical water. The purpose of this study is to elucidate the interaction between guaiacol and formic acid. The experiments were conducted by using a tubular flow continuous supercritical water reactor apparatus.