| 摘要 |
<p>The present technology relates to an apparatus for effectively collecting kerogen contained in oil shale in a form of intermediate oil using an alternate operating scheme, and a collecting method using the same. More specifically, the present invention relates to intermediate oil collecting apparatus and collecting method comprising the steps of: a) maximize heating and mixing effects by 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 stirring sludge containing kerogen decomposition intermediate oil extracted from the extraction device, in a middle storage tank again, c) collecting, in an extraction agent collecting tank, an extraction agent or a low boiling point oil discharged in a process in which the extraction device returns to a normal pressure and reusing the collected extraction agent or the collected low boiling point 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. At this time, the oil shale can be continuously processed by applying the alternate operating scheme, and an extraction addition agent can be further used. The present invention can greatly improve a collection rate of the intermediate oil and can improve an extraction yield rate of kerogen ingredients at a relatively low temperature, so as to reduce energy use per basic unit of crude oil production and reduce air pollutants generated due to residue combustion.</p> |
