ニアゼロエミッション石炭火力に向けて―微粉炭酸素燃焼技術の開発と実証試験―

抄録

In order to mitigate the global warming issue, we promoted the construction of nuclear power and the electric power production using renewable energy such as biomass, wind power, photovoltaic power, etc. as well as made an effort to decrease the fuel consumption of the thermal power through the raise of thermal efficiency by improving steam conditions or the adoption of gas turbines with high inlet gas temperature. Moreover, in order to make thermal power another pillar of near-zero-emission energy sources than nuclear power and renewable energy, the development of the CCS (Carbon Dioxide Capture and Storage) technology has been advanced. In such circumstance, from the end of 1980's, we paid attention to and have been developing the oxyfuel combustion technology as one of CO₂ capture technologies from the thermal power plant firing coal, which was expanded to be used as an alternate fuel of oil at that time. On the other hand, since nuclear power that is an important and largest near-zero-emission electric power source is now in the situation that cannot be operated temporarily, it can be said that the importance of the thermal power with the CCS technology increases by coming here. In this paper, the outline of our R&D supported by Japanese government on the oxyfuel combustion technology to capture CO₂ from coal-fired power station and the demonstration project in Australia with support from Japanese and Australian governments.