Catalytic hydrogenation of carbon dioxide to hydrocarbons

Abstract

Hydrogenation of carbon dioxide was studied by using rare earth alloy catalysts, hybrid catalysts and Fe-Cu catalysts in order to convert carbon dioxide to fuel. Methanation of carbon dioxide was carried out by using rare earth metal alloys at 200∼400°C under 1–5MPa. Methane was obtained in high yield (93%). Hydrocarbons (C 1 to C 5) were obtained in 16% yield by using hybrid catalyst composed of Cu-Zn-Cr and zeolite HY at 400°C via methanol. Higher hydrocarbons (C 1∼C 9) were also obtained in 45% yield by using Fe-Cu catalyst at 400°C under 5MPa.