Abstract Experimental studies have shown that it is impossible to obtain reliable values of chemical stability indices of hydrocarbon fuels using the existing methods of fuel quality control. Techniques for the determination of such chemical stability indices of hydrocarbon fuels as the content of existent gums and oxidation degree, to the improvement of which this article is devoted, are identical both in the Russian Federation and in countries of the European Union. In order to improve the method for determining the content of existent gums in hydrocarbon fuels and create a new method for determining the oxidation degree, experimental studies were carried out, which allowed establishing correlations between the oxygen consumed for oxidation and final products of oxidation. Based on the conducted studies, an addition to the existing technique for determining the content of existent gums in hydrocarbon fuels is given, which allows for the elimination of the new formation of oxidation products in the course of measurements. The carried out experimental studies allowed for the development of a new technique for determining the oxidation degree of hydrocarbon fuels. It was experimentally established that the amount of the oxygen consumed for hydrocarbon fuel oxidation correlated well with the oxidation degree index, which made it possible to take the amount of the oxygen consumed for oxidation and the concentration of solubilized water as the basis for the new method of determining the fuel oxidation degree. A scheme of the installation for determining the concentration of solubilized water in hydrocarbon fuel and a technique of measurements are given. After the calculation of the concentration of solubilized water, the amount of the reacted oxygen referred to the hydrocarbon volume and the fuel oxidation degree are determined as per the experimental nomographic chart.

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确定碳氢燃料化学稳定性的先进方法的发展

摘要 实验研究表明，现有的燃料质量控制方法无法获得可靠的碳氢燃料化学稳定性指标值。用于测定烃类燃料化学稳定性指标（如现有胶的含量和氧化度）的技术（本文致力于改进）在俄罗斯联邦和欧盟国家都是相同的。为了改进测定碳氢燃料中存在的胶质含量的方法并创造一种测定氧化度的新方法，进行了实验研究，从而建立了氧化消耗的氧气与氧化最终产物之间的相关性。根据进行的研究，给出了用于确定碳氢化合物燃料中现有树胶含量的现有技术的补充，这允许在测量过程中消除新形成的氧化产物。进行的实验研究允许开发用于确定碳氢化合物燃料氧化程度的新技术。实验证明，碳氢燃料氧化消耗的氧量与氧化度指数有很好的相关性，从而可以将氧化消耗的氧量和溶解水的浓度作为新方法的依据。确定燃料氧化程度。给出了确定碳氢化合物燃料中溶解水浓度的装置方案和测量技术。