Synthesis of Ni Catalyst Supported on SiO2-ZrO2 Binary Oxide for Hydrodeoxygenation of Phenol

9th Annual Basic Science International Conference 2019

自然科学（总论）

Sowe, Momodou Salieu^1 ; Masruri^1 ; Ulfa, Siti Mariyah^1

Chemistry Department, Faculty of Science, Brawijaya University, Jl. Veteran-Malang

65145, Indonesia^1

关键词: Carbon-oxygen bonds;    Composite formation;    Hydrogenation of benzene;    Hydrogenation reactions;    Lignocellulosic material;    Metal oxide catalysts;    Product distributions;    Wet impregnation method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/546/7/072007/pdf
DOI  :  10.1088/1757-899X/546/7/072007

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Hydrodeoxygenation is a one-step reaction that involve the hydrogenation of unsaturated carbon followed with the deoxygenation of the carbon-oxygen bond. This reaction is effective for converting biomass-derived chemicals from bio-oils, fats, woods, and lignocellulosic materials into biofuels using metal-based oxide catalysts. A Ni based-metal oxide catalyst is reported for hydrodeoxygenation reaction of phenol. The catalyst was prepared by a wet-impregnation method using Ni(NO3)2.6H2O dissolved in deionized water and mixed with the previously prepared SiO2-ZrO2 binary oxide as support. After calcination and reduction at 500 °C, Ni/SiO2-ZrO2 catalyst was obtained. The XRD results showed 2θ peaks for metallic Ni at 30°, 44° and 76°. Additional peaks were detected at 2θ = 35°, 50°, 51°, and 60° for ZrO2 tetragonal phase. However, peaks were not detected for SiO2 suggesting amorphous SiO2-ZrO2 composite formation. The XRF analysis of Ni loading was detected at 16.45%. The catalyst activity test for hydrodeoxygenation of phenol was performed using a batch reactor at 200 °C for 2 h and 8 h. The GC-MS analysis gave product conversion for 2 h at 16.84% with the selectivity formation of cyclohexanol and cyclohexanone at 48.10% and 45.78% yield, respectively. After a prolonged reaction time of 8 h, 100% selectivity for cyclohexanol was achieved. Product distribution showed that the catalyst is active for hydrogenation of benzene better than-OH or C=O deoxygenation. The results suggest Ni/SiO2-ZrO2 could be a potential catalyst for biofuel production via hydrogenation reaction.