Aminosilica adsorbents for post-combustion CO2 capture: Effect of steam and oxygen on long-term stability

Praveen Bollini, Wen Li, Christopher W. Jones

Research output: Contribution to journalConference articlepeer-review


Aminosilica materials are promising candidates for post-combustion CO2 capture. However, their stability under realistic flue gas conditions and economically viable regeneration conditions is not yet well understood. Using low pressure steam available readily in a power plant is a commercially attractive regeneration option. To evaluate the feasibility of this option, stability testing of adsorbents in the presence of steam must be carried out. Also, power plant flue gas exhaust typically contains 5-10% oxygen. The degradation of aminosilica materials under oxidative conditions, however, has not been explored in much detail. In this report we investigate the stability of a variety of amine functionalized silica materials in the presence of steam and oxygen. It was found that steam had an adverse effect on all the materials used in the tests whereas oxygen degraded some adsorbents significantly while others were unaffected by it under the experimental conditions used in this study.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
StatePublished - Aug 25 2011
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

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