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http://dx.doi.org/10.7837/kosomes.2021.27.1.113

Effectiveness of Dispersants for Very-Low-Sulfur Fuel Oil  

Kim, Deuksan (Korea Coast Guard Research Center)
Seo, Jeong Mog (Korea Coast Guard Research Center)
Ahn, Suhyun (Korea Coast Guard Research Center)
Lee, Heejin (Chemical Analysis Research Team, Korea Coast Guard Research Center)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.27, no.1, 2021 , pp. 113-118 More about this Journal
Abstract
The International Maritime Organization (IMO) has confirmed a global limit of 0.5 % for sulfur in fuel oil used on board ships with effect from January 1, 2020. Among various alternatives to respond to these regulations on sulfur content in fuel oil, such as LNG ships, SOx scrubbers, and very-low-sulfur fuel oil (VLSFO). VLSFO is preferred owing to its low investment costs. As more ships are expected to use VLSFO, VLSFO spills are expected to increase. In particular, when the seawater temperature is below the pour point of VLSFO, VLSFO solidifies when it is spilled, which makes controlling spills difficult. In this study, six types of VLSFO produced in Korea and one type of high-sulfur fuel oil (MF380) were compared in terms of the dispersibility of dispersants according to the seawater temperature conditions. The results confirmed that the six type of VLSFO did not satisfy the domestic standards for dispersant rate (60 % or more for 0.5 min, 20 % or more for 10 min). Morever, the dispersant rate of the six types of VLSFO was low compared with that of the high-sulfur fuel oil. The results of this study are expected to be used to set the direction of dispersant control in the case of VLSFO spills.
Keywords
Very-low-sulfur fuel oil (VLSFO); Dispersant; Dispersibility; Pour point; Viscosity; International Maritime Organization (IMO);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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