Absorption of Carbon Dioxide by Metallic Iron and Its Conversion to Useful Substances

二氧化碳被吸收形成碳酸铁，并通过与水和钢或废铁反应被氢气取代。研究了高效工艺的反应条件。研究了生成的碳酸盐的热解行为，并观察了其转化为一氧化碳和氧化铁的情况。碳酸化反应中伴随有甲烷等有机分子的生成，表明该反应可作为二氧化碳向碳资源的转化过程。燃料电池可以由反应产生的氢提供动力。

Carbon dioxide was absorbed to form iron carbonate and replaced by hydrogen gas by the reaction with water and steel or scrap iron. The reaction conditions for an efficient process was studied. Pyrolysis behavior of the formed carbonate was examined, and the conversion of it to carbon monoxide and iron oxide was observed. An accompanying formation of organic molecules such as methane in the carbonation reaction indicates that the reaction can be used as a conversion process of carbon dioxide to carbon resource. A fuel cell could be powered by the hydrogen produced by the reaction.