Experimental vapour-liquid equilibrium data of HI-H

R. Liberatore, A. Ceroli, M. Lanchi, A. Spadoni, P. Tarquini

Research output: Contribution to journalArticle

29 Citations (Scopus)


The Sulphur-Iodine thermochemical cycle for hydrogen production has been investigated by ENEA in the framework of the Italian TEPSI Project whose main objective is the realization of an integrated loop plant at a laboratory scale. For the design of the separation-purification equipments, the study of vapour-liquid equilibrium characterization of the ternary HI-H2O-I2system is considered a key factor. The aim of the present work is to provide new experimental isobaric vapour-liquid equilibrium data for this system by ebulliometry varying both temperature and solution composition. The temperature range has been extended up to about 144 °C, the iodine concentration range from 0.2%w/w to 90%w/w while HI weight fraction varies from 4%w/w to 67%w/w in the liquid phase. Most of the data obtained in this work are in good agreement with other experimental data retrieved from literature, which have been recorded in similar operative conditions but acquired by different procedures. © 2008 International Association for Hydrogen Energy.
Original languageEnglish
Pages (from-to)4283 - 4290
Number of pages8
JournalInternational Journal of Hydrogen Energy
Issue number16
Publication statusPublished - Aug 2008


All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this