Catalytic hydroliquefaction of Barzass liptobiolitic coal in a petroleum residue as a solvent

Hydrogenation of liptobiolitic coal from the Barzas Pit (Russia) in a petroleum residue as a solvent was investigated in the presence of an iron containing ore catalyst at 400–430 °C and working pressure 7.1 MPa. Near 94–97% of the coal organic mass was converted into gaseous and liquid products. The addition of the catalyst in amount of 5% to the coal mass increases the degree of the coal conversion by 21–23 wt%. Under these conditions, the yield of hydrocarbon light liquid products (bp<200 °C) was increased up to 24–28 wt%. The distillate products consist mainly of paraffins, while most part of the aromatic hydrocarbons are alkylbenzenes.