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Comparison of Retorting and Supercritical Extraction Techniques on Gaining Liquid Products from Goynuk Oil Shale (Turkey)

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In this study, conversion of Goynuk oil shale to liquid products was investigated. In the first part of the study, pyrolysis of organic compounds called kerogen, which is the majority of organic material in oil shale, was performed and amounts of residue char, tar, water and gas were determined. After that, oil shale samples were extracted by toluene in an Autoclave and an amount of liquid products obtained by extraction and by pyrolysis was compared with each other. In addition asphaltene, oil, residue char and gas yields in the tar and the optimum conditions at which the maximum yields are obtained were determined. In the pyrolysis experiments, the effects of temperature on residue char, tar, gas and water were investigated. In conclusion, supercritical extraction is a more available method than pyrolysis in conversion of Goynuk oil shale to liquid products.
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Keywords: oil shale; retort; supercritical extraction

Document Type: Research Article

Affiliations: Department of Chemistry, Ankara University, Ankara, Turkey

Publication date: July 1, 2004

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