IMPROVING THE LOW-TEMPERATURE PROPERTIES OF DIESEL FUEL WITH THE HELP OF POUR-POINT DEPRESSANTS
Abstract
The article is devoted to a general review of substances that have a depressant effect in relation to diesel fuel. To ensure the production of diesel fuels with enhanced low-temperature properties in the required volume, various methods can be used. One of the most promising methods is the introduction of substances with depressant properties into the fuel in the form of additives. Their action is based on a decrease in the value of the limiting filterability limit temperature and pour point after the introduction of the additive in comparison with the original fuel. An analysis of various groups and types of depressants is provided. Depending on the structure of the depressant component of additives, there are various technologies for their production, as well as the degrees of effect on diesel fuel. For certain types of additives, there are experimental values of use rate in the fuel and the degree of depression of various indicators of low-temperature characteristics of diesel fuel. Their structural formulas are also given. The analysis shows that the production and research of polymer compounds as components of pour-point depressants is becoming more profound and diverse. An analysis of the main modern concepts of the mechanism of action of pour-point depressants on diesel fuel is given. There are two most common mechanism concepts, namely the adsorption mechanism and the co-crystallization mechanism. An analysis of the modern world market of pour-point depressants is also provided. The main suppliers of pour-point depressants are foreign companies, namely Clariant, BASF, Infenium International. Among domestic suppliers there are also lines of pour-point depressants, represented by a wide range of polymer compounds used as pour-point depressants.
For citation:
Aleksanian K.G., Valiev A.I., Sukhareva N.М., Agadzhanian S.А. Improving the low-temperature properties of diesel fuel with the help of pour-point depressants. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2023. V. 66. N 12. P. 25-31. DOI: 10.6060/ivkkt.20236612.6897.
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