Catalytic removal of carbon monoxide over carbon supported palladium catalyst

► Carbon supported palladium (Pd/C) catalyst was prepared. ► Catalytic removal of CO over Pd/C catalyst was studied under dynamic conditions. ► Effects of Pd %, CO conc., humidity, GHSV and reaction environment were studied. Carbon supported palladium (Pd/C) catalyst was prepared by impregnation of palladium chloride using incipient wetness technique, which was followed by liquid phase reduction with formaldehyde. Thereafter, Pd/C catalyst was characterized using X-ray diffractometery, scanning electron microscopy, atomic absorption spectroscopy, thermo gravimetry, differential scanning calorimetry and surface characterization techniques. Catalytic removal of carbon monoxide (CO) over Pd/C catalyst was studied under dynamic conditions. Pd/C catalyst was found to be continuously converting CO to CO2 through the catalyzed reaction, i.e., CO+1/2O2→CO2. Pd/C catalyst provided excellent protection against CO. Effects of palladium wt%, CO concentration, humidity, space velocity and reaction environment were also studied on the breakthrough behavior of CO.