No abstract

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 nonhydrocarbon compounds.