Monolithic Trace-Contaminant Sorbents Fabricated from 3D-printed Polymer Precursors

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dc.creatorWójtowicz, Marek A.
dc.creatorCosgrove, Joseph E.
dc.creatorSerio, Michael A.
dc.creatorCarlson, Andy
dc.creatorChullen, Cinda
dc.date.accessioned2019-06-20T18:14:59Z
dc.date.available2019-06-20T18:14:59Z
dc.date.issued2019-07-07
dc.descriptionMarek A. Wójtowicz, Advanced Fuel Research (AFR), Inc., USA
dc.descriptionJoseph E. Cosgrove, Advanced Fuel Research (AFR), Inc., USA
dc.descriptionMichael A. Serio, Advanced Fuel Research (AFR), Inc., USA
dc.descriptionAndy Carlson, Advanced Fuel Research (AFR), Inc., USA
dc.descriptionCinda Chullen, National Aeronautics and Space Administration (NASA), USA
dc.descriptionICES402: Extravehicular Activity: PLSS Systems
dc.descriptionThe 49th International Conference on Environmental Systems was held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.
dc.description.abstractThe current trace-contaminant (TC) removal technology for use in Extravehicular Activities (EVAs) involves the use of a packed bed of acid-impregnated granular charcoal, which is difficult to regenerate. In this paper, results will be presented on the development of vacuum-regenerable TC sorbents for use in the Portable Life Support System (PLSS). The sorbents will be derived from 3D-printed polymer monoliths (e.g., honeycomb structures), which will then be carbonized and oxidized in order to develop porosity, and also to enhance the TC-sorption capacity. Results will be presented on the following aspects of carbon-sorbent development: (1) precursor selection; (2) monolith fabrication; (3) shape retention and strength; (4) carbon surface and porosity characterization; (5) TC-sorption capacity and vacuum-regeneration; (6) pressure drop; and (7) sub-scale sorbent prototype. The use of predominantly microporous monolithic carbon is associated with the following benefits: (a) high TC-sorption capacity; (b) low pressure drop; (c) rapid vacuum (pressure-swing) desorption due to thin monolith walls and low pressure drop; (d) good thermal management (high thermal conductivity and low adsorption/desorption thermal effects associated with physisorption); and (e) good resistance to dusty environments.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES_2019_286
dc.identifier.urihttps://hdl.handle.net/2346/84489
dc.language.isoeng
dc.publisher49th International Conference on Environmental Systems
dc.subjectExtravehicular Activities (EVAs)
dc.subjectPortable Life Support System (PLSS)
dc.subjectTrace Contaminant Control System (TCCS)
dc.subjectTrace contaminants (TCs)
dc.subjectAmmonia
dc.subjectFormaldehyde
dc.subjectAdsorption
dc.subjectVacuum regeneration
dc.subject3D printing
dc.subjectCarbonization
dc.titleMonolithic Trace-Contaminant Sorbents Fabricated from 3D-printed Polymer Precursorsen_US
dc.typePresentations

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