NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Adsorption of Carbon Dioxide, Ammonia, Formaldehyde, and Water Vapor on Regenerable Carbon SorbentsResults 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. Furthermore, the current TC‐control technology involves the use of a packed bed of acid‐impregnated granular charcoal, which is nonregenerable, 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 simultaneous carbon dioxide, ammonia, formaldehyde, and water sorption. Multiple adsorption/vacuum‐regeneration cycles were demonstrated at room temperature, and also the enhancement of formaldehyde sorption by the presence of ammonia in the gas mixture.
Document ID
20150000525
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Wojtowicz, Marek A. (Advanced Fuel Research, Inc. East Hartford, CT, United States)
Cosgrove, Joseph E. (Advanced Fuel Research, Inc. East Hartford, CT, United States)
Serio, Michael A. (Advanced Fuel Research, Inc. East Hartford, CT, United States)
Wilburn, Monique (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
January 16, 2015
Publication Date
July 12, 2015
Subject Category
Man/System Technology And Life Support
Report/Patent Number
JSC-CN-32535
Meeting Information
Meeting: International Conference on Environmental Systems
Location: Bellevue, WA
Country: United States
Start Date: July 12, 2015
End Date: July 16, 2015
Sponsors: UTC Aerospace Systems, Texas Tech Univ., Paragon Space Development Corp.
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available