Petroleum ChemistryPetroleum ChemistryНефтехимия0028-24213034-5626The Russian Academy of Sciences65559210.31857/S0028242123050131RZGEPYArticlesСтатьиResearch ArticleApplication of Coal Tar Products and Evaluation of the Stability of Residual Marine FuelsПрименение продуктов каменноугольной смолы и оценка стабильности остаточного судового топливаMingruiLiuliumingrui.fshy@sinopec.comZunzhaoLipetrochem@ips.ac.ruHaiboWangpetrochem@ips.ac.ruLiaoning Provincial Key Laboratory of Marine Fuel Oil Preparation Technology, Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., LtdSinopec Dalian Research Institute of Petroleum and Petrochemicals Co. LtdLiaoning Branch, Fuel Oil Sales Co., Ltd.Fuel Oil Sales Co., LTD15092023635NO5 (2023)№5 (2023)76077211022025Copyright ©; 2023, Russian Academy of SciencesCopyright ©; 2023, Российская академия наук2023Russian Academy of SciencesРоссийская академия наукhttps://journals.eco-vector.com/0028-2421/article/view/655592

Although the quality of coal tar does not meet the demands for blended marine fuel, the properties of its components after processing are improved, and they can be considered as inexpensive blending components. Three types of coal tar products including light coal tar I, light coal tar II, and hydrogenated coal tar have been obtained and used in production of residual marine fuels. To minimize costs, a linear optimization method has been used, and all properties of the resulting products have met the required criteria. In addition, a novel analytical method was used to characterize the fuel stability. The analysis of a hydrocarbon composition and a mechanism of interaction between the resin and asphaltene have shown the main coal tar components affecting fuel oil stability are polycyclic aromatic hydrocarbons (PAHs) and resin. A condensation of PAHs and resin into asphaltene and an increasing complexity of asphaltene structure causes deposition of oil products under heating. Hydrogenation is able to effectively reduce the PAH content and the volume of formation of massive asphaltenes thus preventing fuel flocculation and deposition during aging in fuel tanks.

Получены и использованы в производстве остаточного судового топлива три типа продуктов каменноугольной смолы: легкая каменноугольная смола I, легкая каменноугольная смола II и гидрогенизированная каменноугольная смола. Для минимизации затрат применен метод линейной оптимизации. Свойства полученных продуктов соответствовали требуемым критериям. Кроме того, для определения стабильности топлива был использован новый аналитический метод градиентных свойств. Анализ углеводородного состава и механизма взаимодействия смолы с асфальтеном показал, что основными компонентами каменноугольной смолы, влияющими на стабильность мазута, являются полициклические ароматические углеводороды (ПАУ) и смола. Конденсация ПАУ и смолы в асфальтены и усложнение структуры асфальтенов приводит к отложению нефтепродуктов при нагревании. Гидрогенизация позволяет эффективно снижать содержание ПАУ и объем образования массивных асфальтенов, предотвращая флокуляцию и отложение топлива при старении в топливных цистернах.

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