Catalytic hydrothermal reforming of jatropha oil in subcritical water for the production of green fuels: Characteristics of reactions over Pt and Ni catalysts

Saruul Idesh, Shinji Kudo, Koyo Norinaga, Jun Ichiro Hayashi

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This Article proposes the catalytic conversion of triglyceride in subcritical water for the purpose of developing a process producing liquid and gaseous fuels without any reagents, such as hydrogen, other than water. The characteristics of the reaction were discussed along with the analysis of the catalytic mechanisms. Pt, Pd, and Ni catalysts supported on carbon were applied to the conversion of a jatropha oil. Pt on activated carbon and homemade Ni on porous carbon catalysts had high enough activities to completely convert the oil into products nearly free from fatty acids at 350 C, but they had distinctly different ways of catalysis, leading to the production of pentadecane/ heptadecane and methane, respectively. The hydrogen generated in situ from glycerol by gasification contributed to the increases in the yields of n-alkanes, whereas an unavoidable formation of heavy byproducts, which were undetectable by GC analysis, prevented the jatropha oil from being converted fully into the desired products.

Original languageEnglish
Pages (from-to)4796-4803
Number of pages8
JournalEnergy and Fuels
Volume27
Issue number8
DOIs
Publication statusPublished - Aug 15 2013

All Science Journal Classification (ASJC) codes

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

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