Abstract

This paper reviews the possibility to obtain all-season diesel fuel, the effective use of which is possible both in the Arctic and in the subtropical climate. The resulting fuel has a cetane number at the level of requirements for summer diesel fuels of Euro 5standard, a flash point in accordance with not less than 62°C and a pour point not higher than minus 55°C without the involvement of a depressant-dispersant additive. The conducted research has shown that none of the narrow fractions isolated from oil typical for refineries in the central part of the Russian Federation, has the required properties, even taking into account the introduction of ignition promoters. The improvement of low-temperature properties due to the cracking of n-alkanes in the process of catalyticdewaxing leads to a significant decrease in the cetane number; therefore, in this paper, the application of the process of diesel fuel isodewaxing on a platinum catalyst is considered. This process makes it possible to significantly improve the low-temperature properties of the dewaxed product with a moderate decrease in its cetane number. The optimal conditions for the processof isodewaxing were determined, the optimal feed for the unit was selected.

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