Аннотация:The joint hydroconversion of sawdust preliminarily irradiated on an isotopic γ-radiation source with the tar of carbonic crude oil was carried out in the presence of the precursors of ultradispersed catalysts: the aqueous solutions of ammonium paramolybdate and zirconium chloride and a suspension of aluminum hydroxide. Ammonium sulfide was used as a sulfidizing additive. It was found that the preliminary treatment of sawdust with γ-radiation at a dose of 800 Mrad significantly increased the yield of distillate products.