It is widely agreed that the most energy consuming part of the Sulphur-Iodine (S-I) thermochemical cycle for hydrogen production is represented by separation processes, especially for the HI decomposition section (HIxsection). Therefore, the assessment of the real potential of the S-I cycle requires an optimization of the separation sections and, hence, a deep knowledge of the thermodynamic behaviour of the systems to be separated. In this paper, a new thermodynamic model for the electrolyte system HI-H2O-I2is proposed and validated on vapour-liquid (V-L) equilibrium data at atmospheric pressure. The model provides a reliable description of the phase equilibria of the ternary system and is applied for the flow-sheeting of the HIxsection at atmospheric pressure along with the energy assessment of the proposed scheme. © 2008 International Association for Hydrogen Energy.
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
Lanchi, M., Ceroli, A., Liberatore, R., Marrelli, L., Maschietti, M., Spadoni, A., & Tarquini, P. (2009). S-I thermochemical cycle: A thermodynamic analysis of the HI-H. International Journal of Hydrogen Energy, 34(5), 2121 - 2132. https://doi.org/10.1016/j.ijhydene.2008.11.029