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<p>This research reports the hydro-coprocessing of a 20 vol.% of <i>Jatropha curcas</i> L. oil and gas oil blend using three sulfided Ni-W/Al(0.05)-SBA-15 catalysts with different total (NiO + WO<sub>3</sub>) metallic active phases content (21.5, 24.5, and 30.5 wt.%). At moderate reactions conditions (360&#xa0;°C, 6&#xa0;MPa of H<sub>2</sub> initial pressure, 1&#xa0;g of catalyst, and 4&#xa0;h of reaction time), increasing the overall metallic content to the highest point (30.5%) improved sulfur removal (25%) and oxygen removal (87.1%) reactions due to the occurrence of less stacked layers of sulfided phases with higher dispersion as observed by STEM. On the other hand, the hybrid diesel yield was about 49.3% as a result of all catalysts evidenced mostly tetrahedral Al coordination as shown in <sup>27</sup>Al-MAS-NMR spectra. Therefore, the main changes in the liquid product distribution were ascribed to the hydrocarbon formation via enhanced HDO of triglycerides and fatty acids by increasing the metallic content and as it was evidenced by FTIR and ESI–MS spectra.</p> Graphical Abstract <p></p>

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Improving sulfur and oxygen removal during the hydro-coprocessing of vegetable oil and gas oil blend to get hybrid diesel using different metallic content sulfided NiO-WO3 catalysts

  • 期刊论文

  • 发表日期：

    2026年1月9日

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  • Jonatan R. Restrepo-Garcia,
  • Patricia Rayo,
  • Pablo Torres-Mancera,
  • Ignacio Elizalde-Martínez

摘要

This research reports the hydro-coprocessing of a 20 vol.% of Jatropha curcas L. oil and gas oil blend using three sulfided Ni-W/Al(0.05)-SBA-15 catalysts with different total (NiO + WO3) metallic active phases content (21.5, 24.5, and 30.5 wt.%). At moderate reactions conditions (360 °C, 6 MPa of H2 initial pressure, 1 g of catalyst, and 4 h of reaction time), increasing the overall metallic content to the highest point (30.5%) improved sulfur removal (25%) and oxygen removal (87.1%) reactions due to the occurrence of less stacked layers of sulfided phases with higher dispersion as observed by STEM. On the other hand, the hybrid diesel yield was about 49.3% as a result of all catalysts evidenced mostly tetrahedral Al coordination as shown in 27Al-MAS-NMR spectra. Therefore, the main changes in the liquid product distribution were ascribed to the hydrocarbon formation via enhanced HDO of triglycerides and fatty acids by increasing the metallic content and as it was evidenced by FTIR and ESI–MS spectra.

Graphical Abstract