Apparatus for collecting intermediate oil from oil shale and collecting method using the same

Abstract

An apparatus for collecting kerogen contained in oil shale in a form of intermediate oil using an alternate operating scheme, and collecting method using the same comprising: a) installing a heating coil and a heating jacket through which a heat carrier passes and a support for supporting the heating coil, in a body of an extraction device, b) heating and stiffing sludge containing kerogen decomposition intermediate in a middle storage tank again, c) collecting an extraction agent or low boiling point oil discharged and reusing the collected extraction agent or oil in the middle storage tank, d) separating the sludge discharged from the middle storage tank into an intermediate oil/extraction agent mixture oil and residual sludge through a sludge separation device, and e) separating the separated mixture oil into the extraction agent and the intermediate oil by a separation distillation column and preheating and reusing the separated extraction agent.

Dependencies are inferred from the claim text.