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Methane Post-Processor Development to Increase Oxygen Recovery beyond State-of-the-Art Carbon Dioxide Reduction TechnologyState-of‐the‐art life support carbon dioxide (CO2) reduction technology, based on the Sabatier reaction, is theoretically capable of 50% recovery of oxygen from metabolic CO2. This recovery is constrained by the limited availability of reactant hydrogen. Post‐processing of the methane byproduct from the Sabatier reactor results in hydrogen recycle and a subsequent increase in oxygen recovery. For this purpose, a Methane Post‐Processor Assembly containing three sub‐systems has been developed and tested. The assembly includes a Methane Purification Assembly (MePA) to remove residual CO2 and water vapor from the Sabatier product stream, a Plasma Pyrolysis Assembly (PPA) to partially pyrolyze methane into hydrogen and acetylene, and an Acetylene Separation Assembly (ASepA) to purify the hydrogen product for recycle. The results of partially integrated testing of the sub‐systems are reported
Document ID
20140002644
Document Type
Conference Paper
Authors
Abney, Morgan B. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Greenwood, Zachary (NASA Marshall Space Flight Center Huntsville, AL, United States)
Miller, Lee A. (Ecls Technologies, LLC Huntsville, AL, United States)
Alvarez, Giraldo (Florida State Univ. Tallahassee, FL, United States)
Iannantuono, Michelle (Charleston Coll. Charleston, SC, United States)
Jones, Kenny (Alabama Univ. Huntsville, AL, United States)
Date Acquired
April 2, 2014
Publication Date
July 14, 2013
Subject Category
Man/System Technology and Life Support
Report/Patent Number
M13-2673
Meeting Information
International Conference on Environmental Systems(Vail, CO)
Distribution Limits
Public
Copyright
Public Use Permitted.

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