eesti teaduste
akadeemia kirjastus
SINCE 1984
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2020): 0.934


Full article in PDF format | doi: 10.3176/oil.2015.3.04



Oil shale as an alternative to oil is considered a major possible source of energy in Jordan which has an estimated 50 billion tons of geo­logical proven reserves that are widely distributed all over the country. Many methods have been used for extracting shale oil from oil shale. This investi­ga­tion suggests the application of a novel technique, namely micro­wave-assisted extraction. Several solvents were tested for extractive capacity at different temperatures (50 to 140 °C) by the microwave irradiation of the investigated oil shale. The extraction results showed that all the solvents except hexane followed a sigmoid behaviour. Methanol exhibited the highest extractive capacity of about 23% of shale oil. Several particle sizes in the range of 94–910 µm were examined and the results indicated that shale oil extraction is not diffusion controlled. The dynamic effect of extraction was also considered and found to have a very little effect after 10 minutes of irradiation.


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