SOx対応技術のエンジン潤滑への影響

抄録

The International Maritime Organization (IMO) has decided to strengthen regulations on sulphur oxide (SOx) emissions from ships by 2025. This paper consists of two parts. The first part shows the various types of fuels and their combinations which may be used by marine vessels in the next ten years, and presents the influence these fuels may have on engine lubrication. The second part deals with heavy fuel oil (HFO) with scrubbing, and presents the generation of black scum in scrubbers installed on 2-stroke engines. The author proposes a mechanism for scum formation and suggests two countermeasures to prevent its formation. One countermeasure is the use of specifically formulated cylinder lubricants, and the other is the improvement of lubricant demulsibility.