Cryogenic adsorption of low-concentration hydrogen on charcoal, 5A molecular sieve, UOP S-115, ZSM-5 and Wessalith DAY

Author

Willms, R. Scott

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

1

fYear

1993

fDate

11-15 Oct 1993

Firstpage

61

Abstract

The separation of low-concentration hydrogen isotopes from helium is a processing step that is required for ceramic lithium breeding blanket processing. Cryogenic adsorption is one method of effecting this separation. In this study five adsorbents were considered for this purpose: charcoal, 5A molecular sieve, UOP S-115, ZSM-5 and Wessalith DAY. The first two adsorbents exhibit good equilibrium loadings and are shown to be quite effective at adsorbing low-concentration hydrogen isotopes. The latter three adsorbents display considerably lower equilibrium loadings. This study concludes that by using either charcoal or 5A molecular sieve, cryogenic adsorption would be an effective means of separating hydrogen isotopes from helium

Keywords

adsorption; fusion reactor blankets; fusion reactor fuel; helium; hydrogen; isotope separation; low-temperature techniques; 5A molecular sieve; H; H-He separation; He; UOP S-115; Wessalith DAY; ZSM-5; adsorbents; ceramic lithium breeding blanket processing; charcoal; cryogenic adsorption; equilibrium loadings; low-concentration H; processing; Automatic control; Ceramics; Cryogenics; Helium; Hydrogen; Isotopes; Lithium; Molecular sieves; Nitrogen; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1993., 15th IEEE/NPSS Symposium on

Conference_Location

Hyannis, MA

Print_ISBN

0-7803-1412-3

Type

conf

DOI

10.1109/FUSION.1993.518283

Filename

518283