Effect of Pore Structure on CO2 Adsorption Characteristics of Aminopolymer Impregnated MCM-36
| Autor: | Christopher F. Cogswell, Justin Ramberger, Ronald J. Willey, Daniel Accetta, Sunho Choi, Hui Jiang |
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| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Materials science Diffusion Kinetics Inorganic chemistry Surfaces and Interfaces Polymer Condensed Matter Physics Silicate chemistry.chemical_compound Adsorption chemistry Electrochemistry General Materials Science Amine gas treating Porosity Mesoporous material Spectroscopy |
| Zdroj: | Langmuir. 31:4534-4541 |
| ISSN: | 1520-5827 0743-7463 |
| Popis: | The CO2 adsorption characteristics of a pillared 2-dimensional porous silicate material impregnated with amine containing polymers have been investigated. It was determined that the introduction of amine polymer deteriorates the CO2 capture kinetics of the MCM-36 supported amine adsorbents compared to that of the bare material, due to the fact that with the addition of a higher loading of amine polymer the diffusion of CO2 through the 2-dimensional interlayer mesoporous channels of MCM-36 becomes greatly hindered. This pore blocking sets an upper limit to the CO2 capture performance of the polymer impregnated MCM-36 and greatly reduces the utility of using this sort of amine–solid adsorbent for carbon capture. Interestingly, these results suggest that for 2-D channel solid supports there is an optimal amine loading which is not likely to be equal to the maximum loading, and which can be determined and utilized to obtain the maximum improvement over the original materials. The study performed in this work ... |
| Databáze: | OpenAIRE |
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