Equilibria in fuel cell gases. I. Equilibrium compositions and reforming conditions

Kazunari Sasaki, Y. Teraoka

Research output: Contribution to journalArticle

153 Citations (Scopus)

Abstract

Using thermochemical data of ca. 300 compounds consisting of carbon, hydrogen, and oxygen, the amounts of equilibrium products have been calculated for various fuel cell fuels including alkanes (CH4, C3H8, C8H18, C12H26), alcohols (CH3OH, C2H5OH, C3H7OH), alkenes, alicyclic hydrocarbons, and dimethyl ether, as well as for other hydrocarbon-containing fuels such as biogas and coke oven gas, in the temperature range between 100 and 1000°C. It has been revealed that the major constituents in typical fuel cell gases in thermodynamic equilibrium are H2(g), H2O(g), CO(g), CO2(g), CH4(g), and C(s). Possible minor constituents are specified while their concentrations were negligibly low. Derived are the minimum amounts of H2O and CO2 for reforming and O2 for partial oxidation, thermodynamically essential to prevent carbon deposition.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume150
Issue number7
DOIs
Publication statusPublished - Jul 1 2003

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Reforming reactions
Alicyclic Hydrocarbons
fuel cells
Fuel cells
Carbon
Gases
Hydrocarbons
hydrocarbon fuels
Coke ovens
Alkanes
Biofuels
carbon
coke
ovens
Biogas
Alkenes
Carbon Monoxide
thermodynamic equilibrium
Chemical analysis
gases

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Equilibria in fuel cell gases. I. Equilibrium compositions and reforming conditions. / Sasaki, Kazunari; Teraoka, Y.

In: Journal of the Electrochemical Society, Vol. 150, No. 7, 01.07.2003.

Research output: Contribution to journalArticle

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