Performance of amine-multilayered solid sorbents for CO2 removal: Effect of fabrication variables
| Autor: | Daniel J. Fauth, McMahan L. Gray, Henry W. Pennline, Vincent Kish, Bingbing Jiang, Bingyun Li |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Polyethylenimine Sorbent Fabrication Materials science Nanotechnology Polymer Management Monitoring Policy and Law Microstructure Pollution Industrial and Manufacturing Engineering Polystyrene sulfonate chemistry.chemical_compound General Energy chemistry Chemical engineering Desorption Deposition (phase transition) |
| Zdroj: | International Journal of Greenhouse Gas Control. 5:1170-1175 |
| ISSN: | 1750-5836 |
| Popis: | The emission of fossil fuel carbon dioxide (CO{sub 2) to the atmosphere is implicated as the predominant cause of global climate change; therefore, advanced CO{sub 2} capture technologies are of the utmost importance. In this study, innovative amine-multilayered sorbents were fabricated using layer-by-layer (LbL) nanoassembly technology via alternate deposition of a CO{sub 2}-adsorbing amine polymer (e.g. polyethylenimine or PEI) and an oppositely-charged polymer (e.g. polystyrene sulfonate or PSS). We found that the developed sorbents could be used for CO{sub 2} capture and that LbL nanoassembly allows us to engineer their CO{sub 2} capture performance through the fabrication variables (e.g. deposition polymers, deposition media, and number of bilayers). PEI/PSS was found to be the best polymer combination for developing sorbents with relatively high CO{sub 2} capture capacity. The amine-multilayered solid sorbents possessed fine microstructures and may have similar polymer deposition within and on the surface of solid sorbents. These amine-multilayered sorbents had much faster CO{sub 2} desorption rates compared to sorbents prepared using the current PEI-impregnation approach. Such fast CO{sub 2} desorption could make sorbents a good option for CO{sub 2} removal from power plants and even the atmosphere. |
| Databáze: | OpenAIRE |
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