ABSORPTION OF CARBON DIOXIDE ON CARBONIC ANHYDRASE CONTAINING SUBSTRATES.
Abstract
Carbonic anhydrase (CA), an enzyme catalyzing carbon dioxide hydration, was evaluated for its enhancement of carbon dioxide removal when it is present in granular materials with high water content during exposure to carbon dioxide in an aerating stream. A weak base ion exchange resin, Amberlite IR45, revealed an active carbon dioxide absorption which was enhanced when carbonic anhydrase was added. Silica gel substrates containing the enzyme revealed no increase of carbon dioxide removal from an airstream with 50% relative humidity (RH). Gatosorb, an amine-containing carbon dioxide absorber with effective carbon dioxide removal comparable to that of molecular sieve 5A, was not affected by enzyme additions. Carbon dioxide percentage versus time curves compared molecular sieve, Gatosorb, charcoal, silica gel, Amberlite IR45, Amberlite 401S, lithium hydroxide (LiOH), and baralyme for carbon dioxide removal when water vapor at 50% RH was present in the airstream. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1968
- Accession Number
- AD0834902
Entities
People
- John P. Allen
Organizations
- Flight Dynamics Laboratory