Challenges Faced by UK P&I in Operating Biofuels

Ansuman Ghosh, Director of Risk Assessment at UKP&I Club, discusses the operational challenges of using biofuels in the maritime industry and offers recommendations to address them. One challenge is microbial growth, which can lead to sludge formation and clogged filters. Ghosh suggests draining fuel tanks frequently and using biocides to reduce or prevent contamination. Another challenge is oxygen degradation, which can result in deposits in engines and piping. To prevent this, it is recommended to use biofuel within a relatively short period and add antioxidants to improve storage stability.

Low-temperature properties are also a concern, as biodiesels can have higher cloud points, causing poor flow properties and filter clogging at lower temperatures. It is important to be aware of the biofuel’s cold flow properties and maintain storage and transfer temperatures above the cloud point. Corrosion is another issue, especially with higher concentrations of biofuel. Ghosh advises verifying the compatibility of fuel system components and ensuring they are durable and suitable for use with biofuels. Rubber sealings, gaskets, and hoses can also degrade with biofuel use, so compatibility should be checked.

Lastly, the transition from conventional diesel to biofuel can result in temporary clogging of fuel filters due to the solvent properties of biodiesel. Flushing the system and monitoring filters during this transition period is recommended. By addressing these challenges and implementing preventive measures, the use of biofuels in the maritime industry can be effectively managed, minimizing disruptions and maintaining fuel system integrity.

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