Thermal dissolution of oil shale in benzene with an ethanol additive under supercritical conditions

CO2 supercritical fluid extraction of Jordanian oil shale utilizing different co-solvents

“…At a higher pressure, it is believed that CO 2 forms a miscible phase with hydrocarbon and increases the sweep efficiency of removing hydrocarbon from the porous media. Similar results were obtained for Kashpire oil shale, where in some cases, increasing the extraction pressure from 5 to 15 MPa increases the extraction yield by 2.5 times [19].…”