FIELD: petroleum processing and petrochemistry. SUBSTANCE: hydroconversion of heavy oil-containing raw materials with boiling temperature basically above 204 C is performed in distillation column-type reactor, into which simultaneously two process flows are brought in: oil raw material into inlet zone and hydrogen flow into point located below this inlet zone. Oil raw material flow is subjected to distillation and brought into contact with cracking catalyst made in the form of catalytically active structure at total excessive pressure about 2068 kPa and partial hydrogen pressure within a range of 6.89 kPa to below 482,6 kPa and at temperature between 204,4 and 537.8 C. Under these conditions, part of oil raw material is cracked into lighter products. The latter are distilled to remove vaporized head flow containing products with boiling temperature largely below that of initial raw material. EFFECT: lowered process pressure. 15 cl
