Advanced Supported Liquid Membranes for CO2 Control in EVA Applications, Phase II

Metadata Updated: May 2, 2019

The development of new, robust, lightweight systems for CO2 removal during EVA is a crucial need for NASA. Current activity is focused on extending mission times without increasing the size and weight of the portable life support system (PLSS). Although CO2 sorbents that can be regenerated during EVA are being studied, these system add "on back" hardware, increasing weight and complexity, and reducing reliability. A simpler approach is to use a membrane system to separate CO2 and H2O from the O2 environment, however separating CO2 from O2 is difficult with standard membranes. However, developing a low pressure liquid sorbent that reversibly absorbs CO2, could facilitate the needed separation.

In the Phase I project, Reaction Systems synthesized new CO2 low vapor pressure sorbents that had good reversible CO2 absorption capacity and demonstrated high selectivity for CO2 over O2 in a supported liquid membrane tests. Therefore we demonstrated the feasibility of employing a supported liquid membrane to control CO2 in EVA. In Phase II we will improve the performance by increasing the sorbent loading, reducing its viscosity, and optimizing the membrane support. We will then design and construct a prototype, that is sized to control the metabolic CO2 generation of a single crew member.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_9362
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id d693f484-616c-44cb-b630-a85d79e7f88b
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-04-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 9dffec0ebfbcbf079266c38317922bfc96743a6f
Source Schema Version 1.1

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