Methane steam reforming (MSR) reaction is a promising industrial hydrogen production technology. Mg-Ni/CeO₂ catalysts at different Mg/Ni ratios of 6/4, 7/3, 8/2 and 9/1 with total loading of 10 wt% were used as catalysts for hydrogen production. The characterization techniques such as XRD, SEM and EDS were carried out on fresh and spent samples. Results showed that the optimum Mg addition content for Mg/Ni-CeO₂ is 2%. The process optimization of reaction parameters were conducted by evaluating the catalytic activity. The stability of optimal Mg-Ni/CeO₂ catalyst at 700 ^oC is examined for 8 h on-stream reaction. It reveals that Mg/Ni-CeO₂ still maintains a relatively high catalytic activity after 8 h stability test.

Keywords: hydrogen production, Methane steam reforming, Mg addition, Ni-CeO₂