Effect of Ni/Al-MCM-41 Impregnation Method on Catalytic Deoxygenation of Reutealis Trisperma Oil

Abstract

Deoxygenation of Reutealis trisperma oil into green diesel has been carried out using Ni/Al-MCM-41 catalyst. The Ni/Al-MCM-41 catalyst was prepared using the wetness impregnation and incipient wetness impregnation methods, hereinafter referred to as Ni/Al-MCM-41 (WI) and Ni/Al-MCM-41 (IWI). XRD and FTIR analysis shows a characteristic of amorphous phase for solid Al-MCM-41 catalyst. FTIR pyridine was used to assess the impact of the NiO impregnation technique on Lewis acid and Brønsted acidity. The acidity test showed that the Ni/Al-MCM-41 (WI) catalyst had the highest total acidity 0,227 mmol/g. The catalytic activity of Ni/Al-MCM-41 catalyst was examined in deoxygenation reaction of Reutealis trisperma oil under inert conditions for 4 hours. In comparison to Ni/Al-MCM-41(IWI) and Al-MCM-41 catalysts, the Ni/Al-MCM-41(WI) catalyst produced better results in the deoxygenation reaction of Reutealis trisperma oil with a selectivity of hydrocarbon compounds (C_11-18) of 100% and a degree of deoxygenation of 92.77%.