INFLUENCE OF ADDITIVE ON LOW TEMPERATURE PROPERTIES DIESEL FUEL

To improve the quality of diesel fuels, it is necessary to modify them with additives that meet European requirements. The most active of them are dispersing, depressant, and cetane-increasing additives. The purpose of this work is to study the effect of the additive on the lowtemperature properties of diesel fuels. The external object of study was 3 samples (CN for sample N1-47.98, N2-30.58, N3-24.19) of diesel fuel with different low-temperature properties.The additive runway was selected as a dispersing additive in order to improve the low-temperature properties of diesel fuels of three samples. The depressant additive had an effect on sample No. 1 to lower the filterability temperature. The cloud point for sample No. 1 decreased from -6C to -10C. The greatest modification effect was achieved with an additive amount of 0.5% of the fuel volume. Analyzing the data obtained, it was noted that the depressant additive had the greatest effect on reducing the pour point on sample No. 1 and No. 2. The pour point for sample No. 1 decreased from -20C to -29.5C. The greatest modification effect was achieved with an additive amount of 0.5% of the fuel volume. It was shown that the depressant additive had the greatest effect on reducing the maximum filterability temperature on samples No. 1 and No. 2. The filterability limit temperature for sample No. 1 decreased from -15C to -25C. The greatest modification effect was achieved when the amount of additive was also 0.5% of the fuel volume.