Determination of the concentration of depressor additive in diesel fuel produced from Talakan oil

Iovleva, E L; Лебедев, М. П.

doi:10.1134/s004057951704008x

Cited by 2 publications

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“…In addition to reducing the useful volume of the reservoir, the accumulation of bottom sediments leads to complications in the operation of reservoirs, to an increase in material costs in the transport and storage system, and, as a result, to a decrease in the technical and economic performance of the reservoirs and the transport system as a whole. To increase the efficiency of using reservoir tanks, it is necessary to preserve the useful volume of the reservoirs [3].…”

Section: Introductionmentioning

confidence: 99%

Use of a depressant-dispersant additive during storage of diesel fuel

Iovleva

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The problem of long-term storage of fuel remains relevant for the sparsely populated and inaccessible regions of the Arctic and Priakticheskoy zones. To ensure the heating season, lasting 9-11 months, it is necessary to import diesel fuel during the summer period during navigation, since in winter there is no access to the regions of the North by land. By the decision of the government, large volumes of diesel fuel are imported under the programs for the provision of the northern and arctic regions, so 740 thousand tons of fuel was imported to the Republic of Sakha (Yakutia) in 2020. This amount of fuel is not assimilated in one season and this fuel is stored in tanks. Where, during long-term storage, the quality of raw materials deteriorates. During long-term storage of fuel, depressants do not prevent fuel stratification. Therefore, together with a depressant additive, a paraffin dispersant is used; the composition of such additives includes mainly amides and imides of mono- and dicarboxylic acids. In this article, we have studied the effect of the Dewaxol depressant-dispersant additive on diesel fuel. Considered how at various concentrations and heating temperatures of the fuel, the cloud point decreases and sedimentation stability improves. As a result of the study, it was found that the best sedimentation stability is possessed by a fuel with a high content of a depressant-dispersant additive. In addition, fuel with an additive concentration of 0.1 wt% has the maximum depressant effect and heated to 60 °C.

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Section: Introductionmentioning

confidence: 99%

Use of a depressant-dispersant additive during storage of diesel fuel

Iovleva

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Дизельное топливо обладает с широкими пределами выкипания. Как известно, из различных источников, дизельные топлива с широкими пределами выкипания наиболее восприимчивы к депрессорам [1][2][3][4][5].…”

Section: Introductionunclassified

Effect of the Dewaxol 7801 depressant-dispersant additive on summer diesel fuel

Iovleva

2021

Vestn. Voronež. gos. univ. inž. tehnol.

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Obtaining winter diesel fuel is an expensive and complex process, in which paraffinic hydrocarbons are removed from the fuel. Today, the consumption of winter diesel fuel in Russia has reached its maximum, and the volume produced is not enough to meet the needs of the Russian market. Therefore, obtaining winter diesel fuel from summer grades, by adding a depressant additive, remains relevant. The most common depressants are ethylene vinyl acetate copolymers. The effectiveness of depressant-dispersant additives depends on the fractional and group hydrocarbon composition of diesel fuel. Also, the physicochemical characteristics of the paraffins contained in the fuel play an important roleDuring long-term storage of fuel, depressants do not prevent fuel stratification. Therefore, together with a depressant additive, a paraffin dispersant is used, the composition of such additives includes mainly amides and imides of mono- and dicarboxylic acids. Dewaxol 7801 depressant and dispersant additive is a specially selected composition based on surfactants and copolymers in a hydrocarbon solvent. The use of this additive makes it possible to improve the low-temperature performance of diesel fuel without affecting other properties. From the low-temperature properties of diesel fuel, we have chosen the limiting filterability temperature, since it is this temperature that characterizes the real working conditions. When the maximum filterability temperature is reached, the n-paraffin crystals reach sizes exceeding the pore diameters of the filters, the fuel is not pumped through the fine filters of the high-pressure fuel pump, and the fluidity of the fuel deteriorates. The article shows the effect of Dewaxol 7801, a depressant-dispersant additive, on summer diesel fuel, in various concentrations and when the fuel is heated from 40 to 60 degrees in steps of 10 degrees.

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Determination of the concentration of depressor additive in diesel fuel produced from Talakan oil

Cited by 2 publications

References 0 publications

Use of a depressant-dispersant additive during storage of diesel fuel

Use of a depressant-dispersant additive during storage of diesel fuel

Effect of the Dewaxol 7801 depressant-dispersant additive on summer diesel fuel

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