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STUDY OF THE HYDROLYSIS REACTION OF THE COPPER-CHLORIDE HYBRID THERMOCHEMICAL CYCLE USING OPTICAL SPECTROMETRIES
The experimental set-up to study Reactions 2 and 3
An experimental set-up was designed to study the hydrolysis reaction (Figures 1 and 2). It is composed
of a water vapour generation part. Argon gas, the gas vector bubbles in a water tank at 18°C. A quantity
of about 20 mbar of water is carried in the carrier gas. The hydrolysis reaction takes place in a tubular
oven containing CuCl 2 . An optical UV visible spectrometer Ocean Optics analyses the gas phase in order
to detect the potential presence of chlorine. The measurement is made in an optical cell placed in a
thermo-regulated oven. The hydrogen chloride formed in the reaction is condensed and measured by
conductimetry. Additional measurements such as pHmetry, ionic chromatography are used.
Figure 1: Schematic of the experimental set-up
Dry gas
Preparation of argon
Gas vector
Moisture measurement
Humid gas
Weighing of solids
prior and after
furnace
Chlorine measurement
by UV-visible
Conductivity measurements
pH, Cl- in solution
Figure 2: Photograph of the experimental set-up
Water generation
Thermoregulated oven
Oven
UV Visible spectrometer
Condensation
of gases
NUCLEAR PRODUCTION OF HYDROGEN – © OECD/NEA 2010 245