Abstract
The chapter reports the thermodynamic theoretical analysis of ethanol steam reforming (ESR) process for hydrogen production. The ideal ESR reaction (C2H5OH+3H2O→2CO2+6H2) and a set of subreactions, occurring during the ESR process, have been considered, calculating the main thermodynamic parameters (ΔH, ΔS, ΔG, and Keq), as a function of temperature (T, K) and pressure (P, atm). Potential autothermal ESR reactions have been also considered for comparative purposes. The study mainly focused on the identification of the thermodynamically competitive reactions (desired and undesired), and the estimation of the best conditions for obtaining hydrogen as pure as possible, and reducing the possibility to bring about by-products (such as CO, CO2, CH4, …) that are undesired form a technological point of view.
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