Selective absorption of hydrogen isotopes in an inert gas in a zirconium particle bed

Autor: Nobuo Mitsuishi, Katsuya Kuroiwa, Satoshi Fukada
Rok vydání: 1985
Předmět:
Zdroj: Journal of the Less Common Metals. 113:23-31
ISSN: 0022-5088
DOI: 10.1016/0022-5088(85)90144-4
Popis: The selective absorption and recovery of hydrogen isotopes in an inert gas at 400 °C and their desorption at 800 °C were experimentally investigated using a zirconium particle packed bed. The gases used were H 2 -Ar, D 2 -Ar and H 2 -D 2 -Ar mixtures. The absorption rates of the hydrogen isotopes were found to be fast enough for this absorption method to be used as a hydrogen recovery process in the fuel cycle of a fusion reactor. The length of the absorption zone for D 2 in the zirconium bed is about twice that for H 2 . The hydrogen isotopes in the H 2 -D 2 -Ar mixture break through in the sequence D 2 , HD and H 2 . This is believed to be because the absorption rate and solubility of H 2 are greater than those of D 2 . The experimental results for the desorption of hydrogen isotopes are described fairly well by Fick's diffusion equation for a zirconium particle.
Databáze: OpenAIRE