Structural Changes of Silica Mesocellular Foam Supported Amine-Functionalized CO 2 Adsorbents Upon Exposure to Steam
KAUST Grant NumberKUS-11-011-21
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AbstractThree classes of amine-functionalized mesocellular foam (MCF) materials are prepared and evaluated as CO2 adsorbents. The stability of the adsorbents under steam/air and steam/nitrogen conditions is investigated using a Parr autoclave reactor to simulate, in an accelerated manner, the exposure that such adsorbents will see under steam stripping regeneration conditions at various temperatures. The CO2 capacity and organic content of all adsorbents decrease after steam treatment under both steam/air and steam/nitrogen conditions, primarily due to structural collapse of the MCF framework, but with additional contributions likely associated with amine degradation during treatment under harsh conditions. Treatment with steam/air is found to have stronger effect on the CO2 capacity of the adsorbents compared to steam/nitrogen. © 2010 American Chemical Society.
CitationLi W, Bollini P, Didas SA, Choi S, Drese JH, et al. (2010) Structural Changes of Silica Mesocellular Foam Supported Amine-Functionalized CO 2 Adsorbents Upon Exposure to Steam . ACS Applied Materials & Interfaces 2: 3363–3372. Available: http://dx.doi.org/10.1021/am100786z.
SponsorsThe authors acknowledge financial support from Global Thermostat, LLC. C.W.J. thanks support from the School of Chemical & Biomolecular Engineering at Georgia Tech via the J. Carl & Sheila Pirkle Faculty Fellowship. S.C. and C.W.J. thank the Dreyfus Foundation for support; S.C. is a Camille & Henry Dreyfus Foundation Post-Doctoral Fellow in Environmental Chemistry. P.B. and C.W.J. thank the King Abdullah University of Science and Technology (KAUST) for financial support the financial support through award KUS-11-011-21. S.A.D. thanks DOE-NETL for financial support under Contract FE0002438.
PublisherAmerican Chemical Society (ACS)
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