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Carbon Dioxide Reduction Post-Processing Sub-System Development
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Author and Affiliation:
Abney, Morgan B.(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Miller, Lee A.(Ecls Technologies, LLC, Huntsville, AL, United States);
Greenwood, Zachary(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Barton, Katherine
Abstract: The state-of-the-art Carbon Dioxide (CO2) Reduction Assembly (CRA) on the International Space Station (ISS) facilitates the recovery of oxygen from metabolic CO2. The CRA utilizes the Sabatier process to produce water with methane as a byproduct. The methane is currently vented overboard as a waste product. Because the CRA relies on hydrogen for oxygen recovery, the loss of methane ultimately results in a loss of oxygen. For missions beyond low earth orbit, it will prove essential to maximize oxygen recovery. For this purpose, NASA is exploring an integrated post-processor system to recover hydrogen from CRA methane. The post-processor, called a Plasma Pyrolysis Assembly (PPA) partially pyrolyzes methane to recover hydrogen with acetylene as a byproduct. In-flight operation of post-processor will require a Methane Purification Assembly (MePA) and an Acetylene Separation Assembly (ASepA). Recent efforts have focused on the design, fabrication, and testing of these components. The results and conclusions of these efforts will be discussed as well as future plans.
Publication Date: Jul 15, 2012
Document ID:
20120015325
(Acquired Nov 01, 2012)
Subject Category: SPACE PROCESSING
Report/Patent Number: M11-1310
Document Type: Conference Paper
Meeting Information: 42nd International Conference on Environmental Systems; 15-19 Jul. 2012; San Diego, CA; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: ACETYLENE; BY-PRODUCTS; CARBON DIOXIDE; FABRICATION; GAS RECOVERY; HYDROGEN; INTERNATIONAL SPACE STATION; METHANE; OXYGEN; PYROLYSIS; SABATIER REACTION; SPACE PROCESSING; WATER
Availability Notes: Abstract Only
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