Preparation of NiO/SBA-15 for producer gas conversion

Abstract

NiO/SBA-15 was prepared by the direct and post synthesis methods. The synthesis method affected the location of NiO particles dispersed into SBA/15. High temperature facilitated CO₂ conversion to CO, regardless of synthesis method. At low temperature the synthesis method affected CO₂ conversion reaction. With the direct synthesis method, the NiO loading affected the CO selectivity at low temperature due to CH₄ formation, however, CO selectivity was 100 % at the high temperature, regardless of NiO loading. With the post synthesis method, the CO₂ conversion through methanation increased with increases in NiO loading.