Effects of calcination and activation temperature on dry reforming catalysts

The effect of calcination temperatures on dry reforming catalysts supported on high surface area alumina ni/γ-al2o3 (sa-6175) was studied experimentally. in this study, the prepared catalyst was tested in a micro tubular reactor using temperature ranges of 500, 600, 700 and 800 °c at atmospheric pressure, using a total flow rate of 33 ml/min consisting of 3 ml/min of n2, 15 ml/min of co2 and 15 ml/min of ch4. the calcination was carried out in the range of 500–900 °c. the catalyst is activated inside the reactor at 500–800 °c using hydrogen gas. it was observed that calcination enhances catalyst activity which increases as calcination and reaction temperatures were increased. the highest conversion was obtained at 800 °c reaction temperature by using catalyst calcined at 900 °c and activation at 700 °c. the catalyst characterization conducted supported the observed experimental results.