A112 燃焼プロセスからの微量元素の挙動, 除去および監視技術の動向

抄録

Emission of hazardous components including heavy metals in the combustion gas from fossil fuel or waste should be controlled to prevent from the air pollution. And it is important to establish the system of material recycle and efficient use of energy. The purpose of this study is to establish the flue gas treatment system that reduces emission of heavy metals under high temperature condition. In this study, we proposed one of the continuous emission monitoring method for trace elements in high temperature gas, that was called LIBS (laser induced breakdown spectroscopy). Moreover, we evaluated several minerals as sorbent of heavy metals under high temperature to remove them from the flue gas. Focusing on the cadmium adsorbed by kaolinite, the influence of temperature and residence time on the removal efficiency was estimated. The results of them imply that kaolinite can be one useful material of removal for cadmium.