Adsorption and heat transfer characteristics in krypton-85 storage cylinder filled with adsorbent

This paper reports the adsorption and heat transfer characteristics of Kr, N2 and molecular sieve type 13X systems for the realization of a 85Kr storage system. Measurements were carried out on the adsorbed amount and the effective thermal conductivity using a high pressure experimental apparatus. Adsorption isotherms of Kr, N2 and the mixed gas on molecular sieve type 13X were obtained in the temperature and pressure range of 293 -- 573 K and 0 -- 2 MPa respectively, which obey the Henry's law. Effective thermal conductivity of the Kr-molecular sieve type 13X system was also obtained. Adsorption and heat transfer analysis of a storage cylinder was performed by means of the finite differential method and the obtained data. Consequently, molecular sieve type 13X proved to be one of the advantageous adsorbents for 85Kr storage system. (author)