NDLI: Adsorption of ammonia on regenerable carbon sorbents

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Adsorption of ammonia on regenerable carbon sorbents

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wilburn, Monique Serio, Michael A. Wójtowicz, Marek A. Cosgrove, Jesph E.
Copyright Year	2015
Description	Results are presented on the development of reversible sorbents for the combined carbon dioxide, moisture, and trace-contaminant (TC) removal for use in Extravehicular Activities (EVAs), and more specifically in the Primary Life Support System (PLSS). The currently available life support systems use separate units for carbon dioxide, trace contaminants, and moisture control, and the long-term objective is to replace the above three modules with a single one. Data on sorption and desorption of ammonia, which is a major TC of concern, are presented in this paper. The current TC-control technology involves the use of a packed bed of acid-impregnated granular charcoal, which is non-regenerable, and the carbon-based sorbent under development in this project can be regenerated by exposure to vacuum at room temperature. In this study, several carbon sorbents were fabricated and tested for ammonia sorption. Ammonia-sorption capacity was related to carbon pore structure characteristics, and the temperature of oxidative carbon-surface treatment was optimized for enhanced ammonia-sorption performance.
File Size	655808
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20150008167
Archival Resource Key	ark:/13960/t5w71g94s
Language	English
Publisher Date	2015-07-12
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Sorption Ammonia Life Support Systems Moisture Sorbents Carbon Dioxide Trace Contaminants Extravehicular Activity Portable Life Support Systems Technology Utilization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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