The article discusses the urgent problem of industrial methods for increasing the octane number that improve the quality of gasoline produced. These methods include the processes of catalytic reforming and compounding of gasoline. Reforming from "to reform" (English) — to remodel, to improve. Reformate, depending on the production technology and composition of the raw material, may contain up to 70 % of the mass. aromatic hydrocarbons. Attention to this problem is due to the tightening of environmental requirements for the quality of motor fuel that must comply with modern standards. An effective solution to this problem is to model refining processes with programming. In this article, we apply methods of correlation and regression analysis. Using these methods, you can establish the relationship between two or more variables, thus finding the most effective solution to both technological and economic issues.

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Foreign investment is of high importance for economic growth in Russia. The problem of enhancing investment flows makes it increasingly relevant to search for effective tools for stimulating investment activity. We attempt to identify the factors affecting the dynamics of foreign direct investment (FDI). The paper analyses the current state of foreign direct investment in the Russian economy. Using empirical data for 2001–2018, we construct an econometric model for Russia which considers such factors as inflation (the Consumer Price Index), the exchange rate and imports. The results of the model’s testing do not confirm the initial assumptions that inflation exerts a more profound effect on FDI than the exchange rate and that there is a correlation between these indicators. For Russia, the dependence of FDI on the exchange rate remains insignificant; in addition, we find a direct relationship between the indicators. According to the model, the impact of inflation (direct relationship) and the volume of imports (inverse relationship) are of greater significance. It is noteworthy that the dynamics of foreign direct investment is partially due to its fluctuations with a time lag. The model forecasts that from 2019 to 2024 Russia is expected to experience a rise in FDI net outflows. The findings indicate that in order to attract foreign direct investment, it is necessary to implement economic transformations that will improve the business environment and lead to the development of healthy competition.