NDLI: Increased oxygen recovery from sabatier systems using plasma pyrolysis technology and metal hydride separation (Document No: 20150016511)

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Increased oxygen recovery from sabatier systems using plasma pyrolysis technology and metal hydride separation (Document No: 20150016511)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Miller, Lee A. Wheeler, Richard R. Perry, Jay L. Greenwood, Zachary W. Abney, Morgan B. Hadley, Neal M. Dahl, Roger W. Wambolt, Spencer R.
Copyright Year	2015
Description	State-of-the-art life support carbon dioxide (CO2) reduction technology is based on the Sabatier reaction where less than 50% of the oxygen required for the crew is recovered from metabolic CO2. The reaction produces water as the primary product and methane as a byproduct. Oxygen recovery is constrained by the limited availability of reactant hydrogen. This is further exacerbated when Sabatier methane (CH4) is vented as a waste product resulting in a continuous loss of reactant hydrogen. Post-processing methane with the Plasma Pyrolysis Assembly (PPA) to recover hydrogen has the potential to dramatically increase oxygen recovery and thus drastically reduce the logistical challenges associated with oxygen resupply. The PPA decomposes methane into predominantly hydrogen and acetylene. Due to the highly unstable nature of acetylene, a separation system is necessary to purify hydrogen before it is recycled back to the Sabatier reactor. Testing and evaluation of a full-scale Third Generation PPA is reported and investigations into metal hydride hydrogen separation technology is discussed.
File Size	624962
Page Count	13
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20150016511
Archival Resource Key	ark:/13960/t78s9qx7q
Language	English
Publisher Date	2015-07-12
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Methane Water Metal Hydrides Oxygen Hydrogen Plasmas Physics Carbon Dioxide Chemical Reactions Oxygen Supply Equipment Desorption Acetylene Life Support Systems Sabatier Reaction 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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