The Behavior of Jordanian Oil Shale during Combustion Process from the El-Lajjun Deposit

Autor: Mousa Gougazeh, Sameh Alsaqoor, Gabriel Borowski, Ashraf Alsafasfeh, Ismail I. Hdaib
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Ecological Engineering, Vol 23, Iss 8, Pp 132-139 (2022)
Druh dokumentu: article
ISSN: 2299-8993
22998993
DOI: 10.12911/22998993/150682
Popis: The results of X-ray diffraction, thermogravimetric and FTIR spectroscopy analyses of mineral composition indicated that the El-Lajjun oil shale is principally composed of calcite, quartz with minor amounts of kaolinite), gypsum, and apatite. The obtained oil shale ash products at 830oC and 1030oC are dominated by lime, quartz, anhydrite, portlandite, gehlenite, and amorphous phases. The TGA weight loss curves clearly indicate that it occurred in the temperature range from 310 to 650ºC. The decomposition of oil shale carbonates was detected above 750ºC. The functional groups in the organic material of oil shale are dominated by the aliphatic hydrocarbons, the semi-ash of which had diverse structures of polycyclic aromatic hydrocarbons. The most intensive of combustion occurred in the temperature range of 400–750°C. In this temperature range, about 75 wt. % was accounted for the total mass loss.
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