| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing ethanol, capable of producing the useful ethanol in a high CO2 conversion and in a high yield by catalytically hydrogenating the carbon dioxide in the presence of a specific catalyst. SOLUTION: This method for producing the ethanol comprises catalytically hydrogenating (B) the carbon dioxide in the presence of (A) a catalyst containing iron, copper, zinc and potassium in copper/iron, zinc/iron and potassium/iron atomic ratios of 0.2-3.0, 0.2-3.0 and 0.01-0.5, respectively. The component A is preferably the catalyst further containing the VIII group element in the periodic table, selected from cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, and platinum. The ratio of the VIII group element in the catalyst containing the VIII group element to the iron is preferably 0.00001-2. In the catalytic hydrogenation reaction, a mixture gas comprising the carbon dioxide and hydrogen or further containing an inert gas is used as raw materials in a CO2 /H2 molar ratio of 0.1-10 at 200-400 deg.C. |
