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The Impact of Trace Contaminants on the Shuttle Orbiter Regenerative CO2 Removal System
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Abstract
There is a possibility that trace contaminants in the Shuttle Orbiter cabin atmosphere may chemically react with amine beads found in the Regenerative Carbon Dioxide Removal System and degrade system performance. Two contaminant compounds were exposed to the amine beads, and performance changes were measured. Acetone was tested because it is sometimes found in small but appreciable quantities in the cabin, and it has chemical properties that make it a potential poison. Halon 1301 was tested because it is the fire extinguishant, and a discharge of a Halon canister would trigger high concentrations in the cabin. Acetone was shown to be weakly and reversibly adsorbed. It does not poison the bed, and the RCRS was shown to remove small quantities of acetone. Halon was shown to be inert to the amine. It does not poison the RCRS, and is not removed by the RCRS.
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Citation
Graf, J. and Spexarth, G., "The Impact of Trace Contaminants on the Shuttle Orbiter Regenerative CO2 Removal System," SAE Technical Paper 951540, 1995, https://doi.org/10.4271/951540.Also In
References
- Vermeulen, T. LeVan, M.D. Hiester, N.K. Klein, G. Adsorption and Ion Exchange Perry's Chemical Engineers' Handbook 6th McGraw-Hill Book Co. 1984
- Jeng, F.F. Williamson, R.G. Ouellette, F.A. Edeen, M.A. Lin, C.H. Adsorbent Testing and Mathematical Modeling of a Solid Amine Regenerative CO 2 & H 2 O Removal System SAE Paper # 911364 21st International Conference on Environmental Systems San Francisco CA 1991
- Ouellette, F.A. Winkler, H.E. Smith, G.S. The Extended Duration Orbiter Regenerable CO 2 Removal System SAE Paper # 901292 20th International Conference on Environmental Systems Williamsburg VA 1990
- Coleman, M.E. James, J.T. Airborne Toxic Hazards Space Physiology and Medicine Nicogossian A.E. Huntoon C.L. Pool S.L. Lea & Febiger Philadelphia PA 1994
- James, J.T. Spacecraft Maximum Allowable Concentrations for Airborne Contaminants JSC Report #20584 Space and Life Sciences Directorate NASA Johnson Space Center Houston TX February 1995
- McDonald, C. Interim Progress Report Reactions of Polyethylenimine with Atmospheric Contaminants Lockheed Electronic Corporation Houston, TX June 1978
- Graf, J.C. Dall-Bauman, L.A. Jeng, F.F. Characterization of an Improved Solid Amine for a Regenerative CO 2 Removal System SAE Paper # 932292 23rd Internation Conference on Environmental Systems Colorado Springs CO 1993