Bunker Fuel

FOBAS: Chemical contamination and operational problems in Istanbul

FOBAS has tested fuel samples from vessels, which bunkered in Istanbul, that have reported problems with fuel injection equipment seemingly caused by a substance sticking and seizing the jerk type fuel pumps.

Published

3 weeks ago

April 30, 2025

Admin

Lloyd’s Register Fuel Oil Bunkering Analysis and Advisory Service (FOBAS) on Tuesday (29 April) released a bulletin regarding testing of fuel samples from different vessels, which bunkered in Istanbul, that have reported problems with fuel injection equipment seemingly caused by a substance sticking and seizing the jerk type fuel pumps:

In recent days, FOBAS has tested fuel samples from different vessels that have reported problems with fuel injection equipment seemingly caused by a substance sticking and seizing the jerk type fuel pumps. These vessels bunkered fuel in March and April this year from Istanbul.

These fuels have been further investigated with extended chemical analysis showing a number of chemical species present with some at very high levels.

Various chemicals were found including 4-Cumyl Phenol and Cyclohexane Diol at high levels. Resin acids and Acrylates were also identified along with unusually high levels of DCPD (Dicyclopentadiene), Indene and trace levels of Tetrachloroethylene.

Not all these chemicals may be contributing to the problems, but they are in a pattern seen in some problem fuels from Antwerp and Rotterdam in 2024 and a number of problem fuels from Houston in 2023 and 2018. Some of these chemicals can polymerise and are used in the manufacture of resins and plastics and may be reacting together under the heat and pressure of the fuel injection system.

These fuels were found to be on-spec based on standard routine analysis. However, there are some particular parameters of note. Viscosity was low at around 40cSt, acid numbers were high (1.50 – 2.50mgKOH/g) and all fuels were VLSFO with sulphur content <0.50%. This low viscosity and high acid number pattern aligns with other contaminated fuels seen in Houston in 2023).

We would suggest that if you have bunkered in the last 2-3 months in Istanbul to be particularly cautious with the use of the fuel. In particular if the fuel has a low viscosity, around 50cSt or lower, high acid number >1.00mgKOH/g or high sediments, we would suggest to discuss further testing options as this problematic fuel may not be isolated to only two vessels.

It should also be noted and suppliers reminded that any fuel purchased against the ISO8217 standard must meet the general requirements of clause 5 as well as limits in the characteristics tables. Clause 5 includes the statement that the fuel should be a “homogeneous blend of hydrocarbons derived from petroleum refining” and be free from any substance or chemical waste that “jeopardizes the safety of the ship or adversely affects the performance of the machinery”.

Photo credit: Hans Reniers on Unsplash
Published: 30 April, 2025

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Milestone

Singapore: Equatorial conducts its first bio-blended LSMGO bunker fuel delivery of 2025

Several key challenges including product sourcing, sustainability certification, product handling, and logistics & planning had to be addressed to execute the complex operation, notes COO of Equatorial.

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Singapore: Equatorial conducts its first bio-blended LSMGO bunker fuel delivery of 2025

Singapore bunker supplier Equatorial Marine Fuel Management Services Pte Ltd (Equatorial) in early May carried out its first bio-blended B24 Low Sulphur Marine Gas Oil (LSMGO) bunker fuel delivery of 2025.

The milestone saw Equatorial’s Singapore-flagged 7,999 dwt IMO Type II bunker tanker EM Nikita delivering Used Cooking Oil Methyl Ester (UCOME) based LSMGO, blended to B24 spec, to an Orient Overseas Container Line (OOCL) operated vessel with its electronic bunker delivery note (eBDN).

“This milestone represents not just Equatorial’s first B24 LSMGO delivery, but also a significant step forward for sustainable marine fuel adoption in Singapore,” Choong Sheen Mao, Chief Operating Officer at Equatorial, told Manifold Times.

“It showcases our capability to evolve alongside the market and our commitment to providing certified, traceable, and high-quality biofuels to our customers.”

According to So Kah Meng, Sustainable Energy Manager at Equatorial, several key challenges including product sourcing, sustainability certification, product handling, and logistics & planning had to be addressed to execute the complex operation.

“Bio-blended LSMGO is significantly rarer in the market than bio-blended VLSFO due to limited production capacity, stricter blending requirements, and limited downstream demand. Equatorial secured supply through advanced procurement planning and leveraging trusted ISCC-certified upstream partners,” he explained.

“ISCC EU certification was essential to ensure traceability and regulatory compliance. Equatorial worked closely with its supply chain to ensure full documentation and sustainability verification ahead of the delivery schedule.

“Unlike bio-VLSFO, bio-blended LSMGO’s lower viscosity and pour point demanded additional considerations in tank pre-treatment and temperature control during transfer. Equatorial implemented specialised cleaning protocols and temperature monitoring to maintain fuel integrity.

“Coordination between our UCOME supplier, storage facility, barge planning, and receiving vessel was critical. Equatorial’s in-house technical and commercial teams worked closely with the Maritime and Port Authority of Singapore (MPA) and classification societies to ensure regulatory compliance and operational safety.”

Moving forward, Patrick Ng, Assistant Marketing Manager at Equatorial, believed the milestone operation was made possible by the favourable commercial maritime landscape under the supervision of MPA.

“Singapore’s strong regulatory framework, established bunkering infrastructure, and growing customer interest in low-carbon fuels have made it possible for projects like this to be commercially viable,” he stated.

“Equatorial is proud to contribute to Singapore’s decarbonisation leadership.”

Photo credit: Equatorial Marine Fuel Management Services
Published: 20 May 2025

LNG Bunkering

Baleària arranges LNG bunkering operations on same day at Port of Barcelona

Occasion marked the first time three bunkering operations were carried out on three different ships on the same day at the same port in Spain.

Published

22 hours ago

May 19, 2025

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Baleària arranges three LNG bunkering operations on same day in Barcelona

Spanish shipping company Baleària on Thursday (15 May) said it broke an all-time record for the supply of liquefied natural gas (LNG) with the bunkering of three of its vessels in the port of Barcelona.

The occasion marked the first time three bunkering operations were carried out on three different ships on the same day at the same port in Spain.

The company said the three vessels were fuelled with a total of 2,320 MWh of LNG by eight tankers.

Fast ferry Margarita Salas was fuelled by three tankers simultaneously. Ferry Martín i Soler was fuelled by two tankers and ferry Bahama Mama was bunkered by another three tankers also.

“Our commitment to LNG grew by 184% in 2024. Combined with electric propulsion and other eco-efficiency measures, we have managed to reduce our carbon footprint by almost 10% per passenger,” it said.

Photo credit: Baleària
Published: 19 May, 2025

Bunker Fuel

Vitol launches VLSO and MGO bunker fuel deliveries by barge in West Africa

Latest expansion means that Vitol Bunkers now serves customers in locations across Asia, Australia, Africa, Europe, Middle East and North America.

Published

22 hours ago

May 19, 2025

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Vitol to offer new FuelEU compliant co-processed VLSFO bunker fuel

Marine fuel supplier Vitol Bunkers on Friday (16 May) said it has started supplying bunkers by barge to the West Africa (WAF) region.

The company said it has started with initial deliveries of Very Low Sulphur Fuel (VLSFO) and Marine Gasoil (MGO) and plans to expand its offering to the full spectrum of marine fuels.

“Bunkering by barge offers flexibility of location, taking place wherever there is a need, including Dakar and offshore Lomé,” it said in a statement.

The latest expansion means that Vitol Bunkers now serves customers in locations across Asia, Australia, Africa, Europe, the Middle East and North America.

Ammar Hussaini, Vitol Bunkers, said: “Supplying bunkers by barge to the WAF market allows us to support our customers flexibly in the location and with the fuels that they need.”

Photo credit: Vitol
Published: 19 May, 2025