Hydrogen production by glycerol steam reforming with in situ hydrogen separation

a thermodynamic investigation

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

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Thermodynamic features of hydrogen production by glycerol steam reforming with in situ hydrogen extraction have been studied with the method of Gibbs free energy minimization. The effects of pressure (1–5 atm), temperature (600–1000 K), water to glycerol ratio (WGR, 3–12) and fraction of H2 removal (f, 0–1) on the reforming reactions and carbon formation were investigated. The results suggest separation of hydrogen in situ can substantially enhance hydrogen production from glycerol steam reforming, as 7 mol (stoichiometric value) of hydrogen can be obtained even at 600 K due to the hydrogen extraction. It is demonstrated that atmospheric pressure and a WGR of 9 are suitable for hydrogen production and the optimum temperature for glycerol steam reforming with in situ hydrogen removal is between 825 and 875 K, 100 K lower than that achieved typically without hydrogen separation. Furthermore, the detrimental influence of increasing pressure in terms of hydrogen production becomes marginal above 800 K with a high fraction of H2 removal (i.e., f = 0.99). High temperature and WGR are favorable to inhibit carbon production.
Original languageEnglish
Pages (from-to)10252-10256
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume35
Issue number19
Early online date23 Aug 2010
DOIs
Publication statusPublished - Oct 2010

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Steam reforming
hydrogen production
Hydrogen production
glycerols
Glycerol
steam
Thermodynamics
Hydrogen
thermodynamics
hydrogen
Carbon
carbon
Gibbs free energy
Reforming reactions
Temperature
Atmospheric pressure
atmospheric pressure
optimization
temperature
water

Keywords

  • hydrogen
  • glycerol steam reforming
  • hydrogen separation
  • thermodynamic analysis

Cite this

Hydrogen production by glycerol steam reforming with in situ hydrogen separation : a thermodynamic investigation. / Wang, Xiaodong; Wang, Na; Li, Maoshuai; Li, Shuirong; Wang, Shengping; Ma, Xinbin.

In: International Journal of Hydrogen Energy, Vol. 35, No. 19, 10.2010, p. 10252-10256.

Research output: Contribution to journalArticle

Wang, Xiaodong ; Wang, Na ; Li, Maoshuai ; Li, Shuirong ; Wang, Shengping ; Ma, Xinbin. / Hydrogen production by glycerol steam reforming with in situ hydrogen separation : a thermodynamic investigation. In: International Journal of Hydrogen Energy. 2010 ; Vol. 35, No. 19. pp. 10252-10256.
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abstract = "Thermodynamic features of hydrogen production by glycerol steam reforming with in situ hydrogen extraction have been studied with the method of Gibbs free energy minimization. The effects of pressure (1–5 atm), temperature (600–1000 K), water to glycerol ratio (WGR, 3–12) and fraction of H2 removal (f, 0–1) on the reforming reactions and carbon formation were investigated. The results suggest separation of hydrogen in situ can substantially enhance hydrogen production from glycerol steam reforming, as 7 mol (stoichiometric value) of hydrogen can be obtained even at 600 K due to the hydrogen extraction. It is demonstrated that atmospheric pressure and a WGR of 9 are suitable for hydrogen production and the optimum temperature for glycerol steam reforming with in situ hydrogen removal is between 825 and 875 K, 100 K lower than that achieved typically without hydrogen separation. Furthermore, the detrimental influence of increasing pressure in terms of hydrogen production becomes marginal above 800 K with a high fraction of H2 removal (i.e., f = 0.99). High temperature and WGR are favorable to inhibit carbon production.",
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T2 - a thermodynamic investigation

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AU - Wang, Shengping

AU - Ma, Xinbin

PY - 2010/10

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N2 - Thermodynamic features of hydrogen production by glycerol steam reforming with in situ hydrogen extraction have been studied with the method of Gibbs free energy minimization. The effects of pressure (1–5 atm), temperature (600–1000 K), water to glycerol ratio (WGR, 3–12) and fraction of H2 removal (f, 0–1) on the reforming reactions and carbon formation were investigated. The results suggest separation of hydrogen in situ can substantially enhance hydrogen production from glycerol steam reforming, as 7 mol (stoichiometric value) of hydrogen can be obtained even at 600 K due to the hydrogen extraction. It is demonstrated that atmospheric pressure and a WGR of 9 are suitable for hydrogen production and the optimum temperature for glycerol steam reforming with in situ hydrogen removal is between 825 and 875 K, 100 K lower than that achieved typically without hydrogen separation. Furthermore, the detrimental influence of increasing pressure in terms of hydrogen production becomes marginal above 800 K with a high fraction of H2 removal (i.e., f = 0.99). High temperature and WGR are favorable to inhibit carbon production.

AB - Thermodynamic features of hydrogen production by glycerol steam reforming with in situ hydrogen extraction have been studied with the method of Gibbs free energy minimization. The effects of pressure (1–5 atm), temperature (600–1000 K), water to glycerol ratio (WGR, 3–12) and fraction of H2 removal (f, 0–1) on the reforming reactions and carbon formation were investigated. The results suggest separation of hydrogen in situ can substantially enhance hydrogen production from glycerol steam reforming, as 7 mol (stoichiometric value) of hydrogen can be obtained even at 600 K due to the hydrogen extraction. It is demonstrated that atmospheric pressure and a WGR of 9 are suitable for hydrogen production and the optimum temperature for glycerol steam reforming with in situ hydrogen removal is between 825 and 875 K, 100 K lower than that achieved typically without hydrogen separation. Furthermore, the detrimental influence of increasing pressure in terms of hydrogen production becomes marginal above 800 K with a high fraction of H2 removal (i.e., f = 0.99). High temperature and WGR are favorable to inhibit carbon production.

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KW - hydrogen separation

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