Effects of calcination temperature on the catalyst performance in a CO2 hydrogenation reaction

Cu/ZnO catalysts were synthesized on Al2O3-ZrO2 support via impregnation method with addition of manganese and niobium promoters. Samples calcined at 181, 350 518 ºC. Different characterization techniques such as H2-TPR CO2-TPD used to study the catalytic reduction behavior basicity, respectively. studies shows that all occurred range temperature between 237 ºC 265 The profiles showed calcination significantly influences basicity catalyst 35 0oC was proved contain highest amount basic sites. Furthermore, results validated through analyzing performance during CO2 hydrogenation reaction indicate methanol yield 12.2 % obtained from oC.