CIMAC WG7 | Organic chloride fuel incidents

The latest publication from CIMAC WG7 ‘Fuels' titled ‘2022 Organic Chlorides, marine fuels incidents’ is now published and available for download.

In February and March 2022, more than 100 ships1 reported operational problems using high sulphur residual fuels bunkered in Singapore.
Ships, using these bunkers, reported sticking fuel pumps and engine performance failures (high wear in injection equipment) with some ships also reporting separator sludging and filter blocking.
Review of the reported cases has shown that the incidences were not isolated to any specific machinery, component make or brand of affected separators, filters, two-stroke engines, or four-stroke engines.
The analysed fuels met the ISO 8217 Table 2 requirements however, prompted by the reported problems, further investigative analysis was carried out revealing the presence of high concentrations of various chlorinated organic compounds (COCs), with 1,2-dichloro-ethane showing the highest concentrations.
Concentrations of individual COCs were found up to 6000 mg/kg with the less contaminated fuels having levels of individual COCs in the 70-100 mg/kg range.
Those vessels that used fuels with high concentrations of COCs reported severe operating problems on both main and auxiliary engines.


The publication can be downloaded from the below link.

Download Publication [PDF]

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