Germov, A. A.

Kirgina, Mariya Vladimirovna

Morozova, Yana Pavlovna

Electronic archive of Tomsk Polytechnic University

Том 2 XXIV Международная конференция «Химия и химическая технология в XXI веке»276and chloroquine). All complexes do not exhibit fungistatic activity against P.  italicum (except for [Mn(phen)(H2O)3L]L • 2H2O) and bacteriostatic ac-tivity against gram-positive bacteria St. aureus. At the same time, all the presented complexes (except for [Mn(bipy)(H2O)3L]L) showed high protistocidal activity against C. steinii. In particular, the activi-ty of the [Zn2(dmbipy)2L4] and [Mn(phen)(H2O)3L]L • 2H2O complexes is comparable to the activity of the medical drug toltrazuril.This work has been supported by the Ministry of Science and Higher Education of the Russian Federation, № 121031700321-3.EVALUATION OF THE POSSIBILITY TO OBTAIN ARCTIC DIESEL BY ADDING A DEPRESSANT ADDITIVE AND MODIFYING THE COMPOSITION OF THE FUELA. A. Germov1, Y. P. Morozova1, M. V. Kirgina1,2Research supervisor – Ph.D., associate professor M. V. KirginaLanguage supervisor – assistant teacher I. A. Bogdanov1National research Tomsk polytechnic university Russia, Tomsk, Lenina Avenue, 302Tomsk State University of Architecture and Building Russia, Tomsk, 2, Solyanaya Sq., aag148@tpu.ruArctic diesel fuel (DF) is in high demand in the Russian Federation. This type of fuel can be pro-duced by different methods, but the most relevant of which are dewaxing and addition of depressor addi-tives into DF. Depressor additives were the object of research in this work, due to their availability for mass consumption, as well as ease of operation and transportation. It is worth considering that the use of additives, unlike dewaxing, does not require a large amount of equipment, which also facilitates the pro-duction of diesel fuel of the Arctic grade.Changes in fuel composition can influence on the result of additive action, both increasing its ef-fectiveness and decreasing it. General trends from such modifications can be only identified experi-mentally.The aim of the work is to evaluate the possibil-ity of obtaining Arctic diesel by adding a depressant additive and modifying the fuel composition.During the work blends of diesel fuel with an additive, as well as blends of diesel fuel with addi-tion of hexadecane (HXD) and heptadecane (HPD) in concentrations of 1 and 3 % of the volume of die-Fig. 1.  The structure of [Zn2(dmbipy)2L4] (on the left) and [Mn(phendione)(H2O)3L]L • H2O (on the right) Секция 7.  Химия и химическая технология на иностранном языке (английский)277sel fuel and adding an additive were prepared. HXD and HPD are individual n-paraffin hydrocarbons with carbon content of 16 and 17 atoms, respective-ly. Further, according to the methods presented in [1–3], the cold filter plugging point (CFPP), as well as cloud point (CP) and pour point (PP) of a DF sample and obtained blends were determined. The results are shown on the Figure.Based on data from the Figure, it can be seen that, according to [4], the studied sample of DF meets to the winter grade of fuel by values of CFPP. After adding the additive, the CFPP value decreased by 13 °C, but the grade of the sample remained un-changed.With further addition of n-paraffin hydrocar-bons we can see a decrease in CFPP values of the blends of DF + 1 % vol. HXD + additive by 3 °C relative to the blends of fuel with additive, but the obtained values also do not meet to the necessary for the arctic grade fuel. Addition of 3 % vol. of HXD and 1, 3 % vol. of HPD does not bring the desired result.Adding an additive to the fuel and further add-ing hydrocarbons has almost no effect on the CP and has a negative effect on the fuel PP.Thus, we can conclude that by modifying the fuel composition, namely by introducing small con-centrations of n-paraffins, we can achieve a decrease in CFPP values and a more pronounced effect of the depressor additive.The study was carried out as part of the proj-ect of the Ministry of Education and Science No. FEMN-2022-0003 “Resource-saving and ener-gy-efficient technologies for the sustainable devel-opment of infrastructure in the Far North and the Arctic”.References1.  USS  22254-92. Diesel  fuel. Method  for  deter-mining the ultimate  temperature of filterability on the cold filter. – Moscow: Publishing house of standards, 1993. – 22 p.2.  USS  20287-91.  Petroleum  products.  Methods of determination of yield and pouring tempera-tures. – Moscow: Standartinform, 2006. – 14 p.3.  USS  5066-91  “Motor  Fuels.  Methods  of  de-termination  of  cloudiness  temperature,  the beginning  of  crystallization  and  crystalliza-tion”  [Electronic  resource]  –  URL:  http://docs.cntd.ru/document/1200007918  (accessed 03.04.2021).4.  USS  305-2013.  “Diesel  fuel.  Technical  condi-tions”. Moscow: Standardinform, 2019. – 10 p.Fig. 1.  Results of determining the low-temperature characteristics

Evaluation of the possibility to obtain arctic diesel by adding a depressant additive and modifying the composition of the fuel

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Evaluation of the possibility to obtain arctic diesel by adding a depressant additive and modifying the composition of the fuel

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