Production of bio-jet fuel range alkanes from catalytic deoxygenation of Jatropha fatty acids on a WOx/Pt/TiO2 catalyst

Il Ho Choi, Jin Suk Lee, Chul Ung Kim, Tae Wan Kim, Kwan Young Lee, Kyung Ran Hwang

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13 Citations (Scopus)

Abstract

Bio-jet fuel range alkanes were prepared by catalytic deoxygenation reaction of non-edible acid oils with no added hydrogen. A WOx[6]/Pt[1.6]/TiO2 was used for the deoxygenation of stearic acid and Jatropha fatty acid derived from Jatropha oil by hydrolysis. Tungsten addition to the Pt/TiO2 showed remarkably enhanced performance, a degree of deoxygenation of 86%, which is more than two times higher than that of the Pt/TiO2, even though the WOx/TiO2 had almost no activity for deoxygenation reaction. The enhanced Pt-related hydrogen uptake, measured by H2-TPR, and XPS analysis showed the intimate contact of tungsten with Pt nanoparticles supported on TiO2. This tight contact allows for easier C–C cleavage over Pt nanoparticles and this is assisted by the strong bonding between tungsten and oxygen in the reactant, resulting in more C17 hydrocarbon production on the WOx/Pt/TiO2.

Original languageEnglish
Pages (from-to)675-685
Number of pages11
JournalFuel
Volume215
DOIs
Publication statusPublished - 2018 Mar 1

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Keywords

  • Bio-jet fuel
  • Catalytic deoxygenation
  • Decarboxylation
  • Jatropha fatty acids
  • Oxy-free hydrocarbon

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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