Thermodynamic analysis of glycerol partial oxidation for hydrogen production

Thermodynamics of glycerol partial oxidation for hydrogen production has been studied by Gibbs free energy minimization method. The optimum conditions for hydrogen production are identified: reaction temperatures between 1000 and 1100 K and oxygen-to-glycerol molar ratios of 0.4–0.6 at 1 atm. Under the optimal conditions, complete conversion of glycerol, 78.93%–87.31% yield of hydrogen and 75.12%–87.97% yield of carbon monoxide could be achieved in the absence of carbon formation. The glycerol partial oxidation with O2 is suitable for providing hydrogen-rich fuels for Molten Carbonate Fuel Cell and Solid Oxide Fuel Cell. The carbon-formed and carbon-free regions are found, which are useful in guiding the search for suitable catalysts for the reaction. Inert gases have a positive effect on the hydrogen and carbon monoxide yields.