New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations
8 pages, 5 figures, 4 tables.-- Available online Dec 20, 2005.
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2006-06
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| Subjects: | Carbon fibres, Molecular sieves, Heat treatment, Scanning electron microscopy, Adsorption properties, |
| Online Access: | http://hdl.handle.net/10261/11205 |
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dig-incar-es-10261-112052017-02-10T10:22:40Z New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations Valente Nabais, J. M. Carrott, P. J. M. Ribeiro Carrot, Maria Manuela Padre-Eterno, A. M. Menéndez Díaz, José Ángel Domínguez Padilla, Antonio Ortiz, A. L. Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties 8 pages, 5 figures, 4 tables.-- Available online Dec 20, 2005. The modification of activated carbon fibres prepared from a commercial textile acrylic fibre into materials with monolithic shape using phenolic resin as binder was studied. The molecular sieving properties for the gas separations CO2/CH4 and O2/N2 were evaluated from the gas uptake volume and selectivity at 100 s contact time taken from the kinetic adsorption curves of the individual gases. The pseudo-first order rate constant was also determined by the application of the LDF model. The samples produced show high CO2 and O2 rates of adsorption, in the range 3–35 × 10−3 s−1, and in most cases null or very low adsorption of CH4 and N2 which make them very promising samples to use in PSA systems, or similar. Although the selectivity was very high, the adsorption capacity was low in certain cases. However, the gas uptake in two samples reached 23 cm3 g−1 for CO2 and 5 cm3 g−1 for O2, which can be considered very good. The materials were heat-treated using a microwave furnace, which is a novel and more economic method, when compared with conventional furnaces, to improve the molecular sieves properties. The authors are grateful to the Fundação para a Ciência e a Tecnologia (Portugal), the European Regional Development Fund (FEDER) and Scientific and Technological Cooperation Program GRICES/CSIC (2004/5_4.1.1) for financial support. Peer reviewed 2009-03-03T17:19:33Z 2009-03-03T17:19:33Z 2006-06 artículo http://purl.org/coar/resource_type/c_6501 Carbon 44(7): 1158-1165 (2006) 0008-6223 http://hdl.handle.net/10261/11205 10.1016/j.carbon.2005.11.005 en http://dx.doi.org/10.1016/j.carbon.2005.11.005 none 918459 bytes application/pdf Elsevier |
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Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties |
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Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties Valente Nabais, J. M. Carrott, P. J. M. Ribeiro Carrot, Maria Manuela Padre-Eterno, A. M. Menéndez Díaz, José Ángel Domínguez Padilla, Antonio Ortiz, A. L. New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| description |
8 pages, 5 figures, 4 tables.-- Available online Dec 20, 2005. |
| format |
artículo |
| topic_facet |
Carbon fibres Molecular sieves Heat treatment Scanning electron microscopy Adsorption properties |
| author |
Valente Nabais, J. M. Carrott, P. J. M. Ribeiro Carrot, Maria Manuela Padre-Eterno, A. M. Menéndez Díaz, José Ángel Domínguez Padilla, Antonio Ortiz, A. L. |
| author_facet |
Valente Nabais, J. M. Carrott, P. J. M. Ribeiro Carrot, Maria Manuela Padre-Eterno, A. M. Menéndez Díaz, José Ángel Domínguez Padilla, Antonio Ortiz, A. L. |
| author_sort |
Valente Nabais, J. M. |
| title |
New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| title_short |
New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| title_full |
New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| title_fullStr |
New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| title_full_unstemmed |
New acrylic monolithic carbon molecular sieves for O2/N2 and CO2/CH4 separations |
| title_sort |
new acrylic monolithic carbon molecular sieves for o2/n2 and co2/ch4 separations |
| publisher |
Elsevier |
| publishDate |
2006-06 |
| url |
http://hdl.handle.net/10261/11205 |
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