Comparative analysis on sorption enhanced steam reforming and conventional steam reforming of Hydroxyacetone (cas 116-09-6) for hydrogen production: Thermodynamic modeling

Add time:08/31/2019    Source:sciencedirect.com

The chemical thermodynamics of sorption enhanced steam reforming (SESR) of Hydroxyacetone (cas 116-09-6) for hydrogen production were investigated and contrasted with hydroxyacetone steam reforming (SR) by means of Gibbs free energy minimization principle and response reactions (RERs) method. Hydrogen is mainly derived methane steam reforming reaction from and water gas shift reaction. The former reaction contributes more than the latter one to hydrogen production below 550 °C and at higher temperature the latter one tends to dominate. The maximum hydrogen concentration is 70% in SR, which is far below hydrogen purities required by fuel cells. In SESR, hydrogen purities are over 99% in 525–550 °C with a WHMR greater than 8 and a CHMR of 6. The optimum temperature for SESR is approximately 125 °C lower than that for SR. In comparison with SR, SESR has the advantage of almost complete inhibition of coke formation in 200–1200 °C for WHMR ≥ 3.

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