Bifunctional Biochar-Supported Catalysts for Efficient Hydrodeoxygenation of Pyrolytic Oil Derived from Oil Palm Shells
نویسندگان
1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
2 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
3 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
4 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
5 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
6 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
7 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
8 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl.Willem Iskandar Pasar V Medan Estate, Medan 20221, Indonesia
doi
10.48309/ajgc.2026.552702.1846چکیده
This study examines the efficacy of bifunctional biochar-based catalysts in the hydrodeoxygenation (HDO) of pyrolytic bio-oil from oil palm shells. Biochar was produced via pyrolysis and modified with Co-Mo and Ni-Mo to enhance catalytic effectiveness. Characterization revealed that activation increased the biochar's surface area significantly from 10.597 m²/g to 218.964 m²/g, although metal impregnation caused a slight reduction. The HDO process in a fixed-bed reactor showed optimal results at 300 °C, with varying liquid product yields for different catalysts. GC-MS analysis indicated a reduction in oxygenated compounds post-HDO, with specific catalysts achieving notable hydrocarbon formation and selectivity towards phenols. The upgraded bio-oil demonstrated enhanced physicochemical properties, making it more suitable as a biofuel. The study emphasizes the potential of biochar-supported bimetallic catalysts in bio-oil upgrading, highlighting the advantages of Co-Mo/A-Biochar and Ni-Mo/A-Biochar. These results illustrate the viability of palm shell waste in sustainable biofuel production, addressing environmental and energy concerns.
