Increased Oxygen Recovery from Sabatier Systems Using Plasma Pyrolysis Technology and Metal Hydride Separation

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dc.creatorGreenwood, Zachary W.
dc.creatorAbney, Morgan B.
dc.creatorPerry, Jay L.
dc.creatorMiller, Lee A.
dc.creatorDahl, Roger W.
dc.creatorHadley, Neal M.
dc.creatorWambolt, Spencer R.
dc.creatorWheeler, Richard R.
dc.date.accessioned2015-10-27T17:49:06Z
dc.date.available2015-10-27T17:49:06Z
dc.date.issued2015-07-12
dc.descriptionBellevue, Washington
dc.descriptionZachary W. Greenwood, NASA, George C. Marshall Space Flight Center, USA
dc.descriptionMorgan B. Abney, NASA, George C. Marshall Space Flight Center, USA
dc.descriptionJay L. Perry, NASA, George C. Marshall Space Flight Center, USA
dc.descriptionLee A. Miller, Jacobs Engineering, USA
dc.descriptionRoger W. Dahl, UMPQUA Research Company, USA
dc.descriptionNeal M. Hadley, UMPQUA Research Company, USA
dc.descriptionSpencer R. Wambolt, UMPQUA Research Company, USA
dc.descriptionRichard R. Wheeler, UMPQUA Research Company, USA
dc.descriptionThe 45th International Conference on Environmental Systems was held in Bellevue, Washington, USA on 12 July 2015 through 16 July 2015.
dc.description.abstractState-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.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2015-120
dc.identifier.urihttp://hdl.handle.net/2346/64396
dc.language.isoengen_US
dc.publisher45th International Conference on Environmental Systemsen_US
dc.titleIncreased Oxygen Recovery from Sabatier Systems Using Plasma Pyrolysis Technology and Metal Hydride Separationen_US
dc.typePresentationen_US

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