Catalytic methane reforming into synthesis gas over developed composite materials prepared by combustion synthesis

In this work, the results of carbon dioxide reforming and partial oxidation of CH 4 on the catalysts prepared by solution combustion synthesis (SCS) and impregnation of moisture capacity methods are presented. Investigation of the activity of catalysts produced from initial mixture of Co(NO 3 ) 2 -Μg(NO 3 ) 2 -H 3 BO 3 and glycine/urea of different composition was carried out for the production of synthesis gas and comparison of carbon dioxide reforming and partial oxidation of methane. Co(ΝΟ 3 ) 2 + Mg(NO 3 ) 2 + H 3 BO 3 catalyst containing glycine has a higher activity than the catalyst containing urea. The CH 4 conversion reaches 54.6%, and the conversion of CO 2 increases to 51.7%, while the yield of H 2 and CO is 54.1% and 51.3%, respectively, at 900 °C. It was found that CoMg 3 O 4 spinel formation is due to magnesium cations substitution of cobalt cations. Mg 2+ ions are replaced by ions of Co 2+ , as a consequence CoMg 3 O 4 lattice parameters increase, since the ionic radius of Mg 2+ (0.66 Å) less than Cο 2+ (0.72 Å). Some advantage of SCS catalysts in comparison with catalysts prepared by the traditional impregnation method in the processes of dry reforming and partial oxidation of methane was shown.