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Development of Next-Generation Membrane-Integrated Adsorption Processor for CO 2 Removal and Compression for Closed-Loop Air Revitalization and Analysis of Desiccating Membrane
Technical Paper
2003-01-2367
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The current CO2 removal technology of NASA is very energy intensive and contains many non-optimized subsystems. This paper discusses the concept of a next-generation, membrane-integrated, adsorption processor for CO2 removal and compression in closed-loop air revitalization systems. The membrane module removes water from the feed, passing it directly into the processor's exhaust stream; it replaces the desiccant beds in the current four-bed molecular sieve system, which must be thermally regenerated. Moreover, in the new processor, CO2 is removed and compressed in a single two-stage unit. This processor will use much less power than NASA's current CO2 removal technology and will be capable of maintaining a lower CO2 concentration in the cabin than that can be achieved by the existing CO2 removal systems. The compact, consolidated, configuration of membrane gas dryer and CO2 separator and compressor will allow continuous recycling of humid air in the cabin and supply of compressed CO2 to the reduction unit for oxygen recovery. The device has potential application to the International Space Station and future, long duration, transit, and planetary missions.
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Authors
Citation
Mulloth, L., Finn, J., Ye, X., and LeVan, M., "Development of Next-Generation Membrane-Integrated Adsorption Processor for CO2 Removal and Compression for Closed-Loop Air Revitalization and Analysis of Desiccating Membrane," SAE Technical Paper 2003-01-2367, 2003, https://doi.org/10.4271/2003-01-2367.Also In
References
- Finn John E. Mulloth Lila M. Affleck Dave L. “Integrated Test of a Prototype TSA Compressor with a Space Station Carbon Dioxide Removal Processor,” NASA/TM-2001-210911 February 2001
- Mulloth Lila M. Finn John E. “A Solid-State Compressor for Integration of CO 2 Removal and Reduction Assemblies,” 30th International Conference on Environmental Systems Paper No. 2000-01-2352 Toulouse, France July 2000
- Xinhuai Ye Studies on Trace Contaminate Removal using Adsorption and Membrane Methods. Ph.D. dissertation Vanderbilt University 2003
- XinhuaiYe M. Douglas LeVan “Water Transport Properties of Nafion Membranes. Part I: Single-Tube Membrane Module for Air Drying,” J. Membrane Sci.
- Xinhuai Ye M. Douglas LeVan “Water Transport Properties of Nafion Membranes. Part II: Multi-Tube Membrane Module for Air Drying,” J. Membrane Sci .