Use of Carbon Fibre Composite Molecular Sieves for Air Separation
The adsorption of oxygen, nitrogen and carbon dioxide onto a carbon fibre composite was investigated using static and dynamic techniques. Molecular-sieving effects in the composite were highlighted by the adsorption of carbon dioxide, a more sensitive probe molecule for the presence of micro-porosit...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2005-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263617054353618 |
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| _version_ | 1832544661935226880 |
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| author | Timothy D. Burchell Omats O. Omatete Nidia C. Gallego Frederick S. Baker |
| author_facet | Timothy D. Burchell Omats O. Omatete Nidia C. Gallego Frederick S. Baker |
| author_sort | Timothy D. Burchell |
| collection | DOAJ |
| description | The adsorption of oxygen, nitrogen and carbon dioxide onto a carbon fibre composite was investigated using static and dynamic techniques. Molecular-sieving effects in the composite were highlighted by the adsorption of carbon dioxide, a more sensitive probe molecule for the presence of micro-porosity in adsorbents. The kinetic studies revealed that oxygen was more rapidly adsorbed on the composite than nitrogen and with a higher uptake under equilibrium conditions. Preliminary experiments indicated that the carbon fibre composite was capable of separating oxygen and nitrogen from air on the basis of the different diffusion rates of the two molecules in the micropore network of the composite. It is proposed that the relatively high electrical conductivity of the carbon fibre composite material could be exploited for air separation by facilitating the production of O 2 and N 2 through electrical swing adsorption rather than the depressurization of adsorber beds. |
| format | Article |
| id | doaj-art-0c0346ebee404b6491f9f6193ad0cf40 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2005-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-0c0346ebee404b6491f9f6193ad0cf402025-02-03T10:07:34ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382005-04-012310.1260/0263617054353618Use of Carbon Fibre Composite Molecular Sieves for Air SeparationTimothy D. BurchellOmats O. OmateteNidia C. GallegoFrederick S. BakerThe adsorption of oxygen, nitrogen and carbon dioxide onto a carbon fibre composite was investigated using static and dynamic techniques. Molecular-sieving effects in the composite were highlighted by the adsorption of carbon dioxide, a more sensitive probe molecule for the presence of micro-porosity in adsorbents. The kinetic studies revealed that oxygen was more rapidly adsorbed on the composite than nitrogen and with a higher uptake under equilibrium conditions. Preliminary experiments indicated that the carbon fibre composite was capable of separating oxygen and nitrogen from air on the basis of the different diffusion rates of the two molecules in the micropore network of the composite. It is proposed that the relatively high electrical conductivity of the carbon fibre composite material could be exploited for air separation by facilitating the production of O 2 and N 2 through electrical swing adsorption rather than the depressurization of adsorber beds.https://doi.org/10.1260/0263617054353618 |
| spellingShingle | Timothy D. Burchell Omats O. Omatete Nidia C. Gallego Frederick S. Baker Use of Carbon Fibre Composite Molecular Sieves for Air Separation Adsorption Science & Technology |
| title | Use of Carbon Fibre Composite Molecular Sieves for Air Separation |
| title_full | Use of Carbon Fibre Composite Molecular Sieves for Air Separation |
| title_fullStr | Use of Carbon Fibre Composite Molecular Sieves for Air Separation |
| title_full_unstemmed | Use of Carbon Fibre Composite Molecular Sieves for Air Separation |
| title_short | Use of Carbon Fibre Composite Molecular Sieves for Air Separation |
| title_sort | use of carbon fibre composite molecular sieves for air separation |
| url | https://doi.org/10.1260/0263617054353618 |
| work_keys_str_mv | AT timothydburchell useofcarbonfibrecompositemolecularsievesforairseparation AT omatsoomatete useofcarbonfibrecompositemolecularsievesforairseparation AT nidiacgallego useofcarbonfibrecompositemolecularsievesforairseparation AT fredericksbaker useofcarbonfibrecompositemolecularsievesforairseparation |