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Immobilization and Leakage of Krypton Encapsulated in Zeolite or Glass

Published online by Cambridge University Press:  15 February 2011

A. B. Christensen ,
J. A. Del Debbio ,
D. A. Knecht  and
J. E. Tanner
A. B. Christensen
Affiliation:
Exxon Nuclear Idaho Company, Idaho Falls, Idaho, USA
J. A. Del Debbio
Affiliation:
Exxon Nuclear Idaho Company, Idaho Falls, Idaho, USA
D. A. Knecht
Affiliation:
Exxon Nuclear Idaho Company, Idaho Falls, Idaho, USA
J. E. Tanner
Affiliation:
Exxon Nuclear Idaho Company, Idaho Falls, Idaho, USA
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Abstract

Krypton and other gases are readily adsorbed in zeolite 5A molecular sieve or porous Vycor “thirsty glass” and may be trapped there by sintering 2–4 hours at 700° or 900°C, respectively. Encapsulation in these materials is the basis of a method to “immobilize” krypton-85 for storage. Amounts of gas trapped are approximately proportional to gas density, and are about 50 and 40 cc(standard conditions = STP)/cc of solid at 1000 atm, for zeolite 5A and glass, respectively. Based on tests of a few months duration a leakage of 0.3% of the krypton is predicted for 10 years at 400°C for either material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 6: Symposium D – Scientific Basis for Nuclear Waste Management IV , 1981 , 525
Copyright
Copyright © Materials Research Society 1982

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References

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