Use of Asphaltene Stabilizers for the Production of Very Low Sulphur Fuel Oil

Alisa E. Zvereva, Mikhail A. Ershov (), Vsevolod D. Savelenko, Marina M. Lobashova, Marina Y. Rogova, Ulyana A. Makhova, Ekaterina O. Tikhomirova, Nikita O. Burov, David R. Aleksanyan, Vladimir M. Kapustin, Elena A. Chernysheva and Arina I. Rakova
Additional contact information
Alisa E. Zvereva: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Mikhail A. Ershov: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Vsevolod D. Savelenko: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Marina M. Lobashova: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Marina Y. Rogova: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Ulyana A. Makhova: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Ekaterina O. Tikhomirova: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Nikita O. Burov: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
David R. Aleksanyan: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Vladimir M. Kapustin: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Elena A. Chernysheva: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
Arina I. Rakova: Department of Oil Refining Technology, Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia

Energies, 2023, vol. 16, issue 22, 1-22

Abstract: Marine fuel oil stability has always been an issue for bunkering companies and ship owners all around the world and the problem has become even more apparent with the introduction of the Global Sulphur Gap by the International Maritime Organization (IMO) in 2020. In this article, the historical background and the technical reasons why marine fuel oils lose their stability, as well as methods for preventing such instability from occurring, are presented. While it is possible to make fuel compositions stable by adjusting their composition in such a way that the components of the fuel are compatible, considering that marine fuel oils are often comprised of the least value-added products, the method of adding special fuel oil stabilizers (also known as “asphaltene dispersants”) is usually preferred. An overview of such stabilizers is presented; their chemical composition, based on the information provided by the manufacturers and/or inventors is studied. In addition, the experimental research of the produced marine fuel oil and its components is carried out. The results of the model composition studies show that adding even as little as 10% of residual asphaltene-rich components can make a composition with a high stability reserve unstable. It was also shown that the content of the asphaltene-rich component in a stable fuel can be increased from 3% to 10% by introducing stabilizers in low amounts (up to 2000 ppm), thus lowering the amount of higher value-added, mostly naphthene-paraffinic-based components. Different methods of fuel stability evaluation were studied and tested, most of them being in correlation with one another. Several types of stability enhancers were tried out on unstable fuel, with stabilizers based on alkylphenol formaldehyde resin showing the best results.

Keywords: VLSFO; marine fuel stability; IMO 2020; marine fuel asphaltenes; marine fuel stabilizer; marine fuel stability enhancer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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