Reduction effect on the catalytic performances of NiAl-SPC takovite catalysts in syngas synthesis process

Abstract In the downstream of Oil & Gas industry and decline in oil production, NiAl-HT derived hydrotalciteis a candidate as catalyst to produce syngas methane dry reforming process. Hydrotalcite are lamellar compounds general formulation[M 1-x 2+ M x 3+ (OH) 2 ] x+ [A n- x/n .m H Owhere ionic or cationic character can be tuned by choice metal nature oxidation degree. NiAl-SPC samples were obtained coprecipitation at constant alkaline pH, then product was thermal treated 450°C for 6h obtain mixed oxides phases. Samples prior after calcination characterized XRD, ICP, BET, FTIR, SEM, TEM, TPR, TGA/DTA Raman. Catalysts examined CO examine influence role reducibility ability on catalytic reactivity stability hydrotalcite generics. They reduced 500°C, 600°C, 700°Cfor 1h evaluate effect its morphology changes carbon dioxide carried out 700°C versus time stream. It shown that reduction conditions strongly Ni metallic active phase catalyst, selectivity resistance carbone deposit dioxide.This study proposes further understanding synthesis, effects additives treatment DRM reaction. This knowledge will also beneficial development catalysts other high temperature industrial applications (ammonia cracking, alcohol hydrogen conversion...) longer term such drug delivery energy storage materials.