[2a08-0900] Poster sess. B

[P12] Gas-phase hydrogenation of CO₂ over supported iron-based catalysts.

○Misuzu Komuro¹, Miru Hirahara¹, Hitoshi Ogihara¹, Hideki Kurokawa¹ (1. Saitama University)

Keywords:Supported iron catalyst, carbon dioxide hydrogenation, methane formation

Gas-phase hydrogenation of CO₂ to form lower hydrocarbons was performed over supported iron-based catalysts using a fixed-bed flow reactor. Effects of adding a second element (alkaline metal and transition metal) to the supported iron catalyst on catalytic activity and selectivity were investigated. At 300 ℃ an alumina-supported iron catalyst afforded CO as the main product with a small amount of CH₄. The addition of alkaline metal to the iron catalyst improved the catalytic activity, but the formation of CH₄ was suppressed.