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Nuclear Production of Hydrogen

Fourth Information Exchange Meeting, Oakbrook, Illinois, USA , 14-16 April 2009

image of Nuclear Production of Hydrogen

Hydrogen has the potential to play an important role as a sustainable and environmentally acceptable energy carrier in the 21st century. This report describes the scientific and technical challenges associated with the production of hydrogen using heat and/or electricity from nuclear power plants, with special emphasis on recent developments in high-temperature electrolysis and the use of different chemical thermodynamic processes. Economics and market analysis as well as safety aspects of the nuclear production of hydrogen are also discussed.

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Experimental study of the vapour-liquid equilibria of HI-I2-H2O ternary mixtures

Nuclear Energy Agency

In the framework of the massive production of hydrogen using the sulphur-iodine thermochemical cycle, the design of the reactive distillation column, chosen by CEA for the HIx section, requires the knowledge of the partial pressures of the gaseous species (HI, I2, H2O) in thermodynamic equilibrium with the liquid phase of the HI-I2-H2O ternary mixture in a wide range of concentrations up to 270°C and 50 bar. The experimental devices which enable the measurement of the total pressure and concentrations of the vapour phase (and thus the knowledge of the partial pressures of the different gaseous species) for the HI-I2-H2O mixture in the 20-250°C range and up to 35 bar are described.

English

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