Catalytic Activity and Resistance to Sulfur Poisoning of Nickel-Containing Composites Based on Stabilized Zirconia in Tri-reforming of Methane

摘要

Nickel-containing composites based on stabilized zirconia (20Ni(Cu)/10Sc1CeSZ) modified by added ceriumdioxide (10 wt.%) (Ni-Cu-CeO2), and 0.1 wt.% platinum (Pt-Ni), or 0.1 wt.% palladium (Pd-Ni) showed high activity and stability in the tri-reforming of methane at 700-800 A degrees C. The Pt-Ni and Pd-Ni catalysts are more resistant to the deactivating effect of admixture of H2S than the Ni-Cu-CeO2 composite. A longer regeneration time for the Pd-Ni catalyst helps restore its initial activity.