Method for using high capacity unsupported regenerable CO.sub.2

Details Method for using high capacity unsupported regenerable CO.sub.2 Method for using high capacity unsupported regenerable CO.sub.2

1993-06-28

1995-06-27

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423232, 423220, B01D 5362

Patent

active

054277515

ABSTRACT:
A technique for preparing an unsupported, high capacity CO.sub.2 sorbent. The sorbent is comprised of silver carbonate, alkali metal silicate and alkaline earth metal salt binders for structural integrity, and alkali metal carbonate for CO.sub.2 sorption promotion. The sorbent disclosed in this invention has a high silver oxide density, consumes minimum volume, exhibits high CO.sub.2 absorption rates, and resists dusting and degradation for at least 50 absorption/desorption cycles.

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Colombo, G. V. "Study of CO.sub.2 Sorbents for Extravehicular Activity" NASA Paper CR114632, published Jul. 1973.
Nacheff, M. S., et al. "Metal Oxide Regenerable Carbon Dioxide Removal System for an Advanced Portable Life Support System", SAE Technical Paper Series Paper #891595, published 1989.

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