Methane Post-Processing and Hydrogen Separation for Spacecraft Oxygen Loop Closure

dc.creatorGreenwood, Zach
dc.creatorAbney, Morgan
dc.creatorMiller, Lee
dc.creatorWall, Terry
dc.date.accessioned2017-07-07T16:38:47Z
dc.date.available2017-07-07T16:38:47Z
dc.date.issued2017-07-16
dc.descriptionZach Greenwood, NASA Marshall Space Flight Center (MSFC), USA
dc.descriptionMorgan Abney, NASA Marshall Space Flight Center (MSFC), USA
dc.descriptionLee Miller, Jacobs Technology, USA
dc.descriptionTerry Wall, National Aeronautics and Space Administration (NASA), USA
dc.descriptionICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process Development
dc.descriptionThe 47th International Conference on Environmental Systems was held in South Carolina, USA on 16 July 2017 through 20 July 2017.
dc.description.abstractState-of-the-art life support oxygen recovery technology on the International Space Station is based on the Sabatier reaction where only about half of the oxygen required for the crew is recovered from metabolic carbon dioxide (CO2). The Sabatier reaction produces water as the primary product and methane as a byproduct. Oxygen recovery is constrained by both the limited availability of reactant hydrogen from water electrolysis and Sabatier methane (CH4) being vented as a waste product resulting in a continuous loss of reactant hydrogen. Post-processing methane with the Plasma Pyrolysis Assembly (PPA) to recover this hydrogen has the potential to substantially increase oxygen recovery and thus dramatically reduce the logistical challenges associated with oxygen resupply. The PPA decomposes methane into predominantly hydrogen and acetylene. A purification system is necessary to remove acetylene from the hydrogen before it is recycled back to the Sabatier reactor. Testing and evaluation of acetylene removal systems and PPA system architectures are presented and discussed.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES_2017_182
dc.identifier.urihttp://hdl.handle.net/2346/72989
dc.language.isoeng
dc.publisher47th International Conference on Environmental Systems
dc.subjectMethane
dc.subjectPost Processing
dc.subjectPlasma
dc.subjectPyrolysis
dc.subjectAssembly
dc.subjectOxygen
dc.subjectCarbon Dioxide
dc.subjectRecovery
dc.subjectSpace craft
dc.subjectSpace
dc.subjectAtmosphere
dc.subjectClosed loop
dc.subjectLoop Closure
dc.subjectInternational Space Station
dc.subjectSabatier
dc.subjectacetylene
dc.titleMethane Post-Processing and Hydrogen Separation for Spacecraft Oxygen Loop Closureen_US
dc.typePresentations

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