Slurry-bed hydrocracking of heavy hydrocarbon materials

Abstract

Brown coals were extracted in tetralin at the temperatures of 400〜440℃. The yields of the heavy extracts (toluene-soluble, >250℃) were 32〜39wt%, and the oxygen contents were 6〜9wt%. Hydrocracking of the heavy extract was carried out at 450℃ for 4hr, and the properties of the product oil was compared with those of petroleum atomospheric residues.