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Design And Development Of Regenerative Carbon Dioxide Sorbers

Report Number: AMRL TDR 62-135
Author: Chandler, Horace W.
Author: McDonald, Eugene
Author: Pollara, Frank Z.
Author: Walden, George
Corporate Author: Isomet Corp Oakland NJ
Laboratory: Life Support Systems Laboratory
Date of Publication: 1962-11
Pages: 49
Contract: AF 33(616)-7909
Project: 6373
Task: 637302
AD Number: AD0293224

On the basis of a survey the two most potentially valuable regenerable carbon dioxide sorption systems, molecular sieves and silver oxide preparations, were selected for laboratory investigation. The 5A molecular sieve removed carbon dioxide from air containing 1 volume percent carbon dioxide, provided that water vapor was first removed from the air. At a flow rate of 500 cc/min. of this aire through a 1-inch diameter column containing 100 grams of 5A molecular sieve, the bed picked up about 3 grams of carbon dioxide before carbon dioxide was detectable in the column effluent. Under identical oprating conditions, a 100-gram bed containing a silver oxide preparation picked up about 8 or 9 grams of carbon dioxide. Water vapor in the air is necessary for efficient utilization of the silver oxide. Both the 5 A molecular sieve and the silver oxide preparation are regenerable, but regeneration of the silver oxide occurs at a lower temperature.

Lockheed Martin Missiles & Fire Control
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