Research was carried out on the possibility of involving oil refining wastes and petrochemical by-products in marine fuel oil. It was shown that the properties of the studied products (VAT distillation residue of butyl alcohols. heavy pyrolysis tar. desalted phenol production tar. https://www.kaliboat.com/product-category/food-service-food-serviceother-restaurant-industrialrestaurant-business-2/