The present invention adopts the coprecipitation method to prepare zirconium oxide carrier, and prepares cobalt nitrate solution with a certain concentration, uses pH meter to regulate pH value of solution in a certain range, and utilizes the isochloric impregnation method to make the active component cobalt be loaded no the surface of zirconium oxide, then adopts the processes of ageing, drying and roasting so as to obtain the invented loaded cobalt-zirconium catalyst with higher activity and selectivity. |