OUMAM, M.; ABOURRICHE, A.; MANSOURI, S.; MOUIYA, M.; BENHAMMOU, A.; ABOULIATIM, Y.; HAFIANE, Y.E.; HANNACHE, H.; BIROT, Marc; PAILLER, Rene; NASLAIN, Roger

doi:10.3176/oil.2020.2.04

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Oil Shale. 2020, vol. 37, n° 2, p. 139-157

Résumé en anglais

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.< Réduire

Mots clés en anglais

Moroccan oil shale

adsorbents

activation process

specific surface area

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https://oskar-bordeaux.fr/handle/20.500.12278/112062

DOI

http://dx.doi.org/10.3176/oil.2020.2.04

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Comparison of chemical and physical activation processes at obtaining adsorbents from moroccan oil shale

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Comparison of chemical and physical activation processes at obtaining adsorbents from moroccan oil shale

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Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche