CATALYST FOR WATER GAS SHIFT REACTION AT MIDDLE TEMPERATURE, PREPARATION METHOD THEREOF, AND HYDROGEN PREPARATION METHOD USING SAME

摘要

The present invention provides a catalyst for a water gas shift reaction at a middle temperature, the catalyst comprising a catalytic active component containing, relative to all metals of the catalyst: 40-80 mol% of copper (Cu); 15-50 mol% of zinc (Zn); and 1-13 mol% of aluminum (Al), wherein an aluminum-rich layer is present in a surface layer of a catalyst particle. Furthermore, the present invention provides a preparation method of the catalyst, and a hydrogen preparation method using same.