縦型管状炉を利用した炭酸ガス熱化学分解実験

抄録

Modern society faces major social problems such as the future depletion of fossil fuels and the acceleration of global warming due to the increase in greenhouse gases resulting from their use. On the other hand, the demand for energy will continue to increase due to population growth and economic growth. In response, carbon recycling and decarbonization efforts are underway. To this end, our laboratory has been conducting experiments on thermochemical decomposition of carbon dioxide using metal oxides as reaction media in order to decompose carbon dioxide into oxygen and carbon monoxide for use as fuel. In this experiment, ceria was used as the reaction medium. Experiments were conducted using Ar/CO₂ gas as the carrier gas in a non-isothermal cycle with varying temperatures during reduction and 1200°C during oxidation. No peak was observed for O₂ production, but a peak was observed for CO production, and the higher the temperature during reduction, the more CO was produced.