ROLE OF RARE-EARTH ELEMENT OXIDES IN CATALYSTS FOR THE OXIDATIVE CONVERSION OF METHANE BASED ON Ni/Al2O3

摘要

It has been established that oxides of the rare-earth elements with moderate redox potentials(La2O3,CeO2)increased the activity and working stability of Ni-Al2O3/cordierite catalysts in the reactions of deep and partial oxidation of methane.In the presence of the(NiO + La2O3 + Al2O3)/cordierite catalyst the process of carbon dioxide conversion of methane can be intensified by introduction of oxygen into the reaction gas mixture which decreases the temperature to achieve high conversion to 75-100 °C and has practically no effect on selectivity with respect to H2.