Abstract:

Due to the increasing depth of oil refining and the increased share of processing of sulfur and high-sulfur oils, secondary processes, especially catalytic processes, are becoming increasingly important. Modernization and reconstruction of existing oil refineries, which require the construction of new capacities to deepen oil refining and improve the quality of petroleum products, are the main direction of development of domestic oil refining

Keywords: refining, refining depth, cat cracking, refineries, Heavy oil