Thermodynamic analysis of hydrogen production from glycerol autothermal reforming

Hao Wang, Xiaodong Wang, Maoshuai Li, Shuirong Li, Shengping Wang, Xinbin Ma

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105 Citations (Scopus)

Abstract

In this work, thermodynamics was applied to investigate the glycerol autothermal reforming to generate hydrogen for fuel cell application. Equilibrium calculations employing the Gibbs free energy minimization were performed in a wide range of temperature (700–1000 K), steam to glycerol ratio (1–12) and oxygen to glycerol ratio (0.0–3.0). Results show that the most favorable conditions for hydrogen production are achieved with the temperatures, steam to glycerol ratios and oxygen to glycerol ratios of 900–1000 K, 9–12 and 0.0–0.4, respectively. Further, it is demonstrated that thermoneutral conditions (steam to glycerol ratio 9–12) can be obtained at oxygen to glycerol ratios of around 0.36 (at 900 K) and 0.38–0.39 (at 1000 K). Under these thermoneutral conditions, the maximum number of moles of hydrogen produced are 5.62 (900 K) and 5.43 (1000 K) with a steam to glycerol ratio of 12. Also, it should be noted that methane and carbon formation can be effectively eliminated.
Original languageEnglish
Pages (from-to)5683-5690
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number14
Early online date21 Jun 2009
DOIs
Publication statusPublished - Jul 2009

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Keywords

  • glycerol
  • autothermal reforming
  • hydrogen production
  • thermodynamic analysis
  • thermoneutral

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