00551naa#a2200169#i#450# EN\\bibl\98526 20250905174416.5 3034-4689 20250801b2025####ek#y0engy0150####ca RU IMPROVEMENT OF THE EFFICIENCY OF TECHNOLOGICAL UNITS OF OIL REFINERIES USING ASPEN HYSYS Journal article Kazan Kazan National Research Technological University 2025 4 с. Journal article local Ahmerov Danil Ruslanovich Muhametzyanova A. G. vestniktu.ru