2017 年 42 巻 2 号 p. 76-82
A structured reaction system, which was constructed by monolithic honeycomb-type catalysts, has excellent thermal conductivity and quick response to load fluctuations. This article mentioned such a structured reaction system for production and utilization of hydrogen. For processing the methane reforming, a nickel-based honeycomb-type catalyst was prepared using a combination technique of sol-gel method and electroless plating. The prepared honeycomb-type catalyst indicated high and stable performance for steam reforming and dry reforming of methane, comparing with commercial catalysts. The excellent heat-exchanging ability of the structured system produced high exergy efficiency by combining with an exothermic reaction like as methane combustion. For utilization of hydrogen, this article also introduced the methanation system to reduce carbon dioxide and to make energy resource by using the structured reaction concept.