Syngas Production in DRM by use Ni,Pd,Pt/CaO Catalyst with ZrO2 as Promoter

Abstract

Through adopting the co-precipitation method using K₂CO₃Nickel, palladium and platinum catalysts (every 1 wt.%) On CaO and ZrO₂ to develop Pt,Pd and Ni /Ca_1-xZr_xO (where x = 0, 0.03, 0, 07 and 0.15) were manufactured. As a precipitate, X-ray diffraction (XRD), X-ray photoelectric spectroscopy (XPS), Brunauer-Emmett-Teller (BET), Transmission Electron Microscope (TEM), Programmed H₂ (H₂-TPR) and thermo-thermal analysis (TGA). Pt,Pd,Ni/Ca_0.85Zr_0.15O reported best methane dry reform (DRM) activity at 98.02% and 85.94% for Carbon dioxide and methane conversions and 1.14 for H₂/CO- ratio at 900^°C and 1:1 of CH₄:CO₂ ratio. Various effects were observed when ZrO₂ was used as a catalyst promoter. First, the cubic CaO stage has stabilized. Second, there was an increase thermal stability and basic support. In the end, carbon deposits and Ni²⁺, Pd²⁺ and Pt²⁺ ions have shrunk