Solvent refining of Fushun shale oil with furfural as a solvent extraction agent was investigated. The results showed that raffinate yield decreased with either the increasing of agent/oil mass ratio or reaction temperature; the extract yield increased under the same conditions, while the quality of raffinate oil was better. At agent/oil mass ratio of 3/1, reaction temperature of 60 °C and residence time of 30 min, the raffinate yield was 55.37%, and the extract yield 43.60%. The heavy component from the extract oil was used for blending different grades of asphalt such as heavy-traffic paving asphalt and building asphalt, the light component from the extract oil was used for separation of non-hydrocarbon compounds; a range of light fuel oil was produced through catalytic cracking experiment with the denitrified raffinate oil, the removed nitrogen compounds were also used for separation of non-hydrocarbon compounds.
1. Zhao, G., Chunlei Yao, Hui Quan. The Prospects of Shale Oil Utilization // Contemporary Chemical Industry. 2008. Vol. 10, No. 5. P. 496–499 [in Chinese].
2. Zhao, Y. Research on Proccessing Plan of Shale Oil // Shenyang Chemical Industry. 2000. Vol. 29, No. 1. P. 78–80 [in Chinese].
3. Zhang, S., Yang, Q., Li, S. Refining of Fushun shale oil by complexation // Journal of Petroleum University (Natural Science Journal). 1996. No. 20 (supplement). P. 77–80 [in Chinese].
4. Li, X. Study on light diesel and blend oil from shale oil [Doctoral thesis]. – Beijing: University of Petroleum, 2003 [in Chinese].