The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption
Three different methods for the preparation of activated carbons from almond shells and olive stones have been carried out in the temperature range 1073–1123 K: (a) carbonization in N 2 followed by activation in CO 2 ; (b) direct activation in CO 2 and (c) treatment of the raw material in air at 573...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
1984-09-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361748400100304 |
| _version_ | 1797283489029029888 |
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| author | F. Rodríguez-Reinoso A. Linares-Solano M. Molina-Sabio J. de D. López-González |
| author_facet | F. Rodríguez-Reinoso A. Linares-Solano M. Molina-Sabio J. de D. López-González |
| author_sort | F. Rodríguez-Reinoso |
| collection | DOAJ |
| description | Three different methods for the preparation of activated carbons from almond shells and olive stones have been carried out in the temperature range 1073–1123 K: (a) carbonization in N 2 followed by activation in CO 2 ; (b) direct activation in CO 2 and (c) treatment of the raw material in air at 573 K followed by activation in CO 2 . The characterization of the samples by gas adsorption and mercury porosimetry has shown that methods (a) and (b) yield similar results (and consequently it is preferable to use the direct activation) and that method (c) gives the best results, both in an adsorptive capacity and in the overall yield. On the other hand, the carbons from almond shells are more micro- and mesoporous whereas those from olive stones are more macroporous; in any case, the adsorptive capacity for gas adsorption of activated carbons prepared from both raw materials is very large. |
| first_indexed | 2024-03-07T17:32:21Z |
| format | Article |
| id | doaj.art-d040d2b9a0f84eeba15edbb24c99140a |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:32:21Z |
| publishDate | 1984-09-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-d040d2b9a0f84eeba15edbb24c99140a2024-03-02T17:50:11ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381984-09-01110.1177/026361748400100304The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas AdsorptionF. Rodríguez-ReinosoA. Linares-SolanoM. Molina-SabioJ. de D. López-González0 Departamento de Química Inorgánica, Universidad Nacional de Educación a Distancia, Madrid, SpainThree different methods for the preparation of activated carbons from almond shells and olive stones have been carried out in the temperature range 1073–1123 K: (a) carbonization in N 2 followed by activation in CO 2 ; (b) direct activation in CO 2 and (c) treatment of the raw material in air at 573 K followed by activation in CO 2 . The characterization of the samples by gas adsorption and mercury porosimetry has shown that methods (a) and (b) yield similar results (and consequently it is preferable to use the direct activation) and that method (c) gives the best results, both in an adsorptive capacity and in the overall yield. On the other hand, the carbons from almond shells are more micro- and mesoporous whereas those from olive stones are more macroporous; in any case, the adsorptive capacity for gas adsorption of activated carbons prepared from both raw materials is very large.https://doi.org/10.1177/026361748400100304 |
| spellingShingle | F. Rodríguez-Reinoso A. Linares-Solano M. Molina-Sabio J. de D. López-González The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption Adsorption Science & Technology |
| title | The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption |
| title_full | The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption |
| title_fullStr | The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption |
| title_full_unstemmed | The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption |
| title_short | The Two-Stage Air–CO Activation in the Preparation of Activated Carbons. I. Characterization by Gas Adsorption |
| title_sort | two stage air co activation in the preparation of activated carbons i characterization by gas adsorption |
| url | https://doi.org/10.1177/026361748400100304 |
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