Chemisorption of oxygen by coke deposited on catalyst surface

Chemisorption of oxygen by nickel molybdate catalyst used for hydrotreating heavy oils was shown to increase with increasing temperature and reached a maximum at about 270 °C. Yields of CO2, CO and SO2 formed during isothermal Chemisorption were estimated by using a fixed-bed reactor. Experimental observations were interpreted in terms of a hydrocarbon autoxidation...