Optimizing MgO Content for Boosting γ-Al2O3-Supported Ni Catalyst in Dry Reforming of Methane

The dry reforming of methane (DRM) process has attracted research interest because its ability to mitigate the detrimental impacts greenhouse gases such as (CH4) and carbon dioxide (CO2) produce alcohols clean fuel. In view this importance DRM, we disclosed efficiency a new nickel-based catalyst, which was promoted with magnesia (MgO) supported over gamma-alumina (γ-Al2O3) doped silica (SiO2), toward DRM. synthesized catalysts were characterized by H2 temperature-programmed reduction (H2-TPR), X-ray diffraction (XRD), Photoelectron Spectroscopy (XPS), Thermogravimetric analysis (TGA), Transmission electron microscopy (TEM) techniques. effect MgO weight percent loading (0.0, 1.0, 2.0, 3.0 wt. %) examined catalytic performance found be function parameter. An optimum 2.0 % obtained, where conversion CH4 CO2 at 800 °C 86% 91%, respectively, while syngas (H2/CO) ratios relied on temperature in range 0.85 0.95. TGA measurement best operated 15-h reaction time, displayed negligible loss (<9.0 due deposition, indicating good resistance our catalyst system deposition owing dopant modifier. TEM images showed presence multiwalled nanotubes, confirming TGA.