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Supercritical fluid extraction of Moroccan (Timahdit) oil shale with water |
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| Authors: | K El harfi C Bennouna A Mokhlisse M Ben chana L Leme J Joffre A Ambls |
| Institution: | a Laboratoire de Chimie Physique, Université Caddi Ayyad, Faculté des Sciences de Marrakech, Semlalia, BP: 2300, 40001 Morocco b Labratoire de Chimie Organique Appliquée, Université Caddi Ayyad, Faculté des Sciences de Marrakech, Semlalia BP: 2390, 40001 Morocco c Laboratoire Chimie XII, URA CNRS 1468, 40 Avenue du Recteur-Pineau, 86022 Poitiers, France |
| Abstract: | Timahdit oil shale was subjected to supercritical water extraction. The results reveal significant difference in oil yields and composition when compared with those obtained from conventional pyrolysis. In addition, the effect of temperature and residence time on the supercritical water extraction of oil was investigated in a set of three experiments. The results revealed that the yield and the fraction of paraffins and aromatics increase while the percentage of asphaltenes decreases as the temperature is increased from 380 to 400°C. The residence time was found to affect the yield and the fraction of asphaltenes and polar compounds. |
| Keywords: | Oil shale Shale oil Pyrolysis Supercritical extraction |
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