To relieve the shortage of oil

exploration of oil shale attracts increasingly attention of different countries

especially China. However

there are few systematic studies on comprehensive utilization of oil shale. This paper models a comprehensive utilization process and analyzes its techno-economic performance

compared to a conventional pyrolysis process. Appropriate retorting temperature and air to steam ratio are selected according to oil productivity and electricity generation. The comparison suggests that the comprehensive process is more economically competitive: the return on investment increasing from 13% to 16% and the payback period decreased from 7.5 years to 6.3 years.