Comparison of chemical and physical activation processes at obtaining adsorbents from moroccan oil shale
| Autor: | Roger Naslain, M. Mouiya, Y. Abouliatim, Mina Oumam, Said Mansouri, Marc Birot, René Pailler, Y. El Hafiane, A. Abourriche, A. Benhammou, Hassan Hannache |
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| Přispěvatelé: | Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Composites Thermostructuraux (LCTS), Centre National de la Recherche Scientifique (CNRS)-Snecma-SAFRAN group-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Snecma-SAFRAN group-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
adsorbents
activation process Energy Engineering and Power Technology specific surface area 02 engineering and technology [CHIM.MATE]Chemical Sciences/Material chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Pulp and paper industry 01 natural sciences Moroccan Oil 0104 chemical sciences Fuel Technology Adsorption Environmental science Moroccan oil shale 0210 nano-technology Oil shale |
| Zdroj: | Oil shale Oil shale, Estonian Academy Publishers, 2020, 37 (2), pp.139-157. ⟨10.3176/oil.2020.2.04⟩ Oil shale, 2020, 37 (2), pp.139-157. ⟨10.3176/oil.2020.2.04⟩ |
| ISSN: | 0208-189X 1736-7492 |
| Popis: | International audience; Within the Moroccan natural resources valorisation scheme, new adsorbents have been prepared from oil shale by chemical and physical activation processes. The activation process the authors have developed in this study give effective adsorbent materials. In view of the physico-chemical properties of these materials and application to the treatment of water loaded with a metal (Cr6+ ion) or organic (methylene blue (MB)) pollutant, it is concluded that the chemical activation process of oil shale at low temperature (250 °C) affords the best material. The material’s yield is good in comparison with the physical activation at the same temperature and the process is energy saving differently from that at 450 °C. Moreover, the chemical activation of oil shale with phosphoric acid at 250 °C produces a material with a good yield (about 70%), a high specific surface area (approximately 600 m2/g) and a highly porous structure, which gives it a high retention of methylene blue and the Cr6+ ion. |
| Databáze: | OpenAIRE |
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