Advanced exergy analysis of an oil shale retorting process

The results indicate that, the simulation results are consistent with industrial data. The process can produce 21.90 t/h of shale oil from 500 t/h oil shale. The exergy efficiency of the Fushun-type oil shale retorting process studied in this work is 34.17% and the total exergy destruction is 442.62 MW. The analysis shows that 45.40% of the exergy destruction cannot be reduced. The retort is found to be the element of the Fushun-type oil shale retorting process having the greatest potential for decrease in exergy destruction. Improvement strategies are proposed to minimize exergy destruction in the retort.