2020
DOI: 10.35933/paliva.2020.02.05
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Microscopy as a Reliable Tool for the Evaluation of Marine Fuels Stability

Abstract: The stability of marine fuels is traditionally a very hot topic, especially in the beginning of so-called sulphur cap. The sulphur cap is the process of reducing the maximum level of sulphur content (from 3.5 to 0.5 wt%) in marine fuels, which are being used on deep sea from the first of January 2020. After this change, the large amount of marine fuels will be produced as a mixture of two or more components to achieve required sulphur level. Higher amounts of cutter stocks will increase the likelihood of decre… Show more

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“…According to empirical evidence from laboratory studies monitoring the stability of marine fuels in practice, the TSA values are often higher than the TS values because of the difference in one determination. 40,42 In the case of the TSA method, we titrated the samples with n-hexadecane and then aged them for 1 h in an oil bath at 100 °C. The TSA parameter provides a more reliable guide to the colloidal stabilization of the sample than the TS parameter, which provides information only about the total sediment content.…”
Section: ■ Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…According to empirical evidence from laboratory studies monitoring the stability of marine fuels in practice, the TSA values are often higher than the TS values because of the difference in one determination. 40,42 In the case of the TSA method, we titrated the samples with n-hexadecane and then aged them for 1 h in an oil bath at 100 °C. The TSA parameter provides a more reliable guide to the colloidal stabilization of the sample than the TS parameter, which provides information only about the total sediment content.…”
Section: ■ Discussionmentioning
confidence: 99%
“…This method was tested on six laboratoryprepared marine fuels of the ISO-F-RME 180 class. 42 In this study, we considered the possibility of diluting the high-viscosity residual fraction with a component that does not disturb or that minimally disturbs the colloidal stability of the tested fraction. Concurrently, we developed a procedure for evaluating and comparing high-viscosity residual fractions and correlated the obtained results with commonly used methods for evaluating samples of this nature.…”
Section: ■ Introductionmentioning
confidence: 99%