Nanoporous Silica as a Regenerable Sorbent for Potential Integration into NASA's Trace Contamination Control System

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dc.creatorMaterer, Nicholas
dc.creatorKadossov, Evgueni
dc.creatorApblett, Allen
dc.creatorShaikh, Shoaib
dc.creatorKomarneni, Mallikharjuna
dc.creatorTeicheira, Michael
dc.creatorChullen, Cinda
dc.creatorBoom, Kelsey
dc.creatorHostetler, John
dc.date.accessioned2023-06-20T15:39:34Z
dc.date.available2023-06-20T15:39:34Z
dc.date.issued2023-07-16
dc.descriptionNicholas Materer, Oklahoma State University, USA
dc.descriptionEvgueni Kadossov, XploSafe,USA
dc.descriptionAllen Apblett, Oklahoma State University, USA
dc.descriptionShoaib Shaikh, XploSafe,USA
dc.descriptionMallikharjuna Komarneni, XploSafe,USA
dc.descriptionMichael Teicheira, XploSafe,USA
dc.descriptionCinda Chullen, NASA Johnson Space Center(JSC), USA
dc.descriptionKelsey Boom, NASA Johnson Space Center(JSC), USA
dc.descriptionJohn Hostetler, NASA Johnson Space Center(JSC), USA
dc.descriptionICES402: Extravehicular Activity: PLSS Systems
dc.descriptionThe 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.
dc.description.abstractDevelopment is underway for the next generation of spacesuits called the Extra-Vehicular Mobility Unit (xEMU). The Exploration Portable Life Support Subsystem (xPLSS) is a vitally important component of the xEMU that is also being developed. The xPLSS is tasked with the maintenance of a breathable atmosphere that is free of noxious volatile molecular species. The purification system that removes contaminants present in the ventilation system is the Trace Contamination Control System (TCC) which is a component in the ventilation loop of the xPLSS. Acid-impregnated activated carbon is the current state of the art for trace contamination control. As this sorbent is non-regenerable consumable, there is a significant impact of logistics on future missions. The primary trace contaminants that must be removed by the sorbent include ammonia, carbon monoxide, formaldehyde, and methyl mercaptan. XploSafe has developed and demonstrated the technical feasibility of a vacuum-regenerable sorbent that could be integrated into the TCC. XploSafe's sorbent media was exposed to 7-day Spacecraft Maximum Allowable Concentrations of the 18 trace contaminants that are present within the xPLSS breathing loop. The trace contaminants were exposed to the sorbent columns individually and in mixtures at relative humidities of 40% and 85% and temperature of 22 C). Adsorption breakthrough volumes and capacities were measured along with regeneration capacity for the sorbent tested with these trace contaminant analytes. Prototype TCC holder design considerations including the required sorbent mass and sorbent holder volume are also discussed.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2023-320
dc.identifier.urihttps://hdl.handle.net/2346/94725
dc.language.isoeng
dc.publisher2023 International Conference on Environmental Systems
dc.subjectVacuum Regenerable sorbent
dc.subjectTrace contaminant control
dc.subjectTCC prototype design
dc.subjectVOC removal
dc.titleNanoporous Silica as a Regenerable Sorbent for Potential Integration into NASA's Trace Contamination Control System
dc.typePresentations

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