Desorption rate of adsorbed tritiated water from molecular sieve 5A by exchange with environmental water vapor.

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概要

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• The desorption rate of tritiated water from molecular sieve adsorbed HTO, by exchange with the environmental water vapor, was measured. The molecular sieve, packed in a column, was initially changed with tritiated water and then humidified Ar gas was made to flow through it and the tritium concentration of effluent gas was measured. The de-sorption rate of tritiated water increased linearly with the water vapor pressure in the gas at constant flow rate. In the case where both the flow rate and the vapor pressure were kept constant, the amount of tritium left adsorbed on the molecular sieve decreased exponentially with time. It should be noted that the desorption rate was rather rapid even at room temperature and nearly all the tritiated water adsorbed on the molecular sieve was recovered by the flowing humidified gas at room temperature within several hours.

• 一般社団法人 日本原子力学会の論文

著者

• ONO Futaba

  Nuclear Engineering Research Laboratory, University of Tokyo

• NAKAZAWA Masaharu

  Nuclear Engineering Research Laboratory, University of Tokyo

関連論文

• Distribution equilibrium of tritium between adsorbed water on molecular sieve 5A and environmental water.
• Verification experiment of threshold detector 107Ag(n,n')107mAg on "YAYOI" standard neutron field.
• Desorption rate of adsorbed tritiated water from molecular sieve 5A by exchange with environmental water vapor.

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