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<p>Fusel oil (FO), a waste product from bioethanol fermentation, offers sustainable feedstock for biofuel production, but its high oxygen content diminishes fuel quality. Hydrodeoxygenation (HDO) is a common method that upgrades its quality and possibly produces bio-based chemicals. This research investigates the bio-fuel production from fusel oil using Ni over zeolite, with a focus on optimizing reaction conditions such as temperature, type of zeolites, percentage of H<sub>2</sub> feeding, and propriate amount of cerium to improve fuel quality. The results demonstrated that catalytic performance was greatly influenced by both promoter (Ce) and reaction conditions. XRD, chemisorb analyses (H<sub>2</sub>-TPR, and NH<sub>3</sub>-TPD) and TEM displayed that the incorporation of 3 wt% cerium improved catalyst dispersion, reduced the Ni crystallite size and increased the total acid sites. This led to a significant reduction in the oxygenated compounds, reaching below 10% and resulting in a fusel oil conversion of 82.5%. Under the optimized reaction conditions (350&#xa0;°C, 10&#xa0;bar, 20% (v/v) H<sub>2</sub> diluted in N<sub>2</sub>, and ratio of Ni: Ce (10:3) as a promoter over H-Beta zeolite), the heating value of the biofuel produced reached 41.2&#xa0;MJ/kg, indicating a substantial improvement in fuel quality.</p> Graphical Abstract <p></p>

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Hydrodeoxygenation of Fusel Oil Over Ce-Promoted Ni/Zeolite Catalyst for Bio-Fuel Production

  • 期刊论文

  • 发表日期：

    2025年8月27日

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  • Le Mai Hong Tham,
  • Imam Sahroni,
  • Ghina Kifayah Putri,
  • Natthawan Prasongthum,
  • Prasert Reubroycharoen

摘要

Fusel oil (FO), a waste product from bioethanol fermentation, offers sustainable feedstock for biofuel production, but its high oxygen content diminishes fuel quality. Hydrodeoxygenation (HDO) is a common method that upgrades its quality and possibly produces bio-based chemicals. This research investigates the bio-fuel production from fusel oil using Ni over zeolite, with a focus on optimizing reaction conditions such as temperature, type of zeolites, percentage of H2 feeding, and propriate amount of cerium to improve fuel quality. The results demonstrated that catalytic performance was greatly influenced by both promoter (Ce) and reaction conditions. XRD, chemisorb analyses (H2-TPR, and NH3-TPD) and TEM displayed that the incorporation of 3 wt% cerium improved catalyst dispersion, reduced the Ni crystallite size and increased the total acid sites. This led to a significant reduction in the oxygenated compounds, reaching below 10% and resulting in a fusel oil conversion of 82.5%. Under the optimized reaction conditions (350 °C, 10 bar, 20% (v/v) H2 diluted in N2, and ratio of Ni: Ce (10:3) as a promoter over H-Beta zeolite), the heating value of the biofuel produced reached 41.2 MJ/kg, indicating a substantial improvement in fuel quality.

Graphical Abstract