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Analysis

Current testing methods for VLSFO stability and compatibility may require supporting tests, says Infineum

Reserve Stability Number results are ‘questionable’ as almost all additives targeting asphaltene management show effectiveness in the test, says spokesman.

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Rob Ashton MT

Testing methodologies that once helped protect vessels running on high sulphur fuel oil (HSFO) in the past may be unsuitable post-IMO 2020, suggests the Marine Fuel Additive Business Development Manager at Infineum.

Rob Ashton was delivering a presentation at the international fuel additive company’s Bringing Clarity to Marine Fuel Stability Issues webinar on Tuesday (27 April) when he pointed out issues of using the Reserve Stability Number (RSN) as an indicator of VLSFO stability and compatibility.

“As 2020 evolved bunker fuel quality concerns earlier anticipated were largely unfounded; a key contributor to this was due to the COVID-19 effect which produced an abundance of molecules for bunker fuel traders to blend,” he said.

“Consequently, that resulted in generally favourable VLSFO bunker fuel quality although it did deteriorate as 2020 progressed. However, the real problem has been related to shelf life of VLSFO bunker fuel which quickly deteriorates onboard ships, resulting in operational problems.

“VLSFOs are different from HSFOs which are generally compatible when blended together. HSFOs are very stable over the lifetime of the fuel so they will not encounter storage problems onboard ships. This doesn’t seem to be the case for all VLSFOs.”

According to Ashton, current test methodologies for detecting stability and compatibility issues in VLSFOs offer varying levels of performance.

He believes there is a need for additional alternative sedimentation tests in order to ensure ‘fit for purpose’ fuels are supplied to vessels.

“Regarding RSN, almost all additives that are targeting asphaltene management can show effectiveness in this test at very low treat rates and it is questionable whether that translates into fuel improvement benefits,” Ashton points out.

The Total Sediment Potential (TSP) test, though having issues in fuels with high or quickly changing sedimentation performance, does provide some level of protection.

“For TSP, it is fair to say very few technologies can consistently move total sediment potential; our technology can,” he informs.

Ashton further suggests the application of the Alfa Laval Spin Test as its results are directly correlated to actual purifier operation onboard ships.

“So far, we have only established Infineum additives can improve the VLSFO quality in the Alfa Laval Spin Test, however, we continue to evaluate it’s broader appetite for additives,” he says.

“Consequently, we believe the combination of TSP and Alfa Laval Spin Test coupled with Infineum asphaltene management additives offers the most complete protection for ship operators.”

 

Photo credit: Infineum
Published: 5 May, 2021

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Research

Yamna identifies five potential global ammonia bunkering hubs

Unlike methanol, ammonia is not constrained by biogenic CO2 availability, and its production process is relatively simple.

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Yanma projected ammonia bunkering hubs

Specialised green hydrogen and derivatives platform Yamna in early December identified several potential ammonia bunkering hubs around the world.

The hubs are Port of Rotterdam, Port of Algeciras, Suez Canal, Jurong Port, and Port of Salalah.

“The shipping industry faces an ambitious challenge: reducing emissions by 20% by 2030 (compared to 2008 levels) and achieving net-zero emissions by 2050, in alignment with IMO targets,” it stated.

“Achieving these goals in the medium to long term depends on the adoption of alternative low-emission fuels like green ammonia and methanol.

“Among these, ammonia is attracting growing interest as a viable option. Unlike methanol, it is not constrained by biogenic CO2 availability, and its production process is relatively simple.”

However, the firm noted kickstarting ammonia bunkering on a large scale required four enablers to align:

  • Ammonia fuel supply
  • Application technology
  • Bunkering infrastructure
  • Safety guidelines and standards

It believed ammonia bunkering hubs will first emerge where affordable and scalable ammonia supply is available.

Yanma Why use ammonia for bunkering fuel

 

Photo credit: Yanma
Published: 31 December 2024

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Research

Port of Long Beach releases Clean Marine Fuels White Paper

Document intended to prepare and position the port and its stakeholder for adopting low carbon alternative fuels.

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Clean Marine Fuels Port of Long Beach (December 2024)

The Port of Long Beach (PLB) in late December released the Clean Marine Fuels White Paper as part of efforts to identify solutions capable of reducing emissions from ships.

“To understand the opportunities and challenges related to the adoption of clean marine fuels, the Port of Long Beach hired ICF Consulting to develop this white paper as an educational resource and guidance document,” stated PLB

“This document is also intended to prepare and position the port and its stakeholder for adopting low carbon alternative fuels.

“The white paper provides high level information on the array of currently available low carbon marine fuels, along with an exploration of the potential infrastructure needs for their deployment.”

The document covers the use of different types of clean bunker fuels such as green hydrogen, green methanol, green ammonia, renewable LNG and biofuels for shipping.

“The shift to clean marine fuels is no longer optional but a necessity for the sustainability of the maritime industry,” stated PLB in its closing remarks.

“This transition, while presenting challenges such as high costs, limited fuel availability, and the need for extensive infrastructure development, is advancing due to evolving policy frameworks and growing industry commitment.

“Addressing these obstacles will require targeted initiatives and robust collaboration between public and private sectors. Continued policy support, government funding, and sustained industry commitment will be essential to driving this progress and ensuring the long-term sustainability of maritime operations.”

Editor’s note: The 123-page Clean Marine Fuels White Paper may be downloaded from the hyperlink here.

 

Photo credit: Clean Marine Fuels White Paper
Published: 26 December 2024

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Port & Regulatory

Clyde & Co: FuelEU Maritime Series – Part 6: Legal issues

Bunker purchasers should consider the wording of their bunker supply contracts carefully and ensure that they are comfortable with the contractual provisions.

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CHUTTERSNAP MT

Global law firm Clyde & Co on Thursday (19 December) released the final instalment of its six-part series uncovering the FuelEU Maritime Regulation.

In it, the firm looked at the legal issues that could potentially arise between various parties, such as owners, charterers, ship managers, bunker suppliers, and ship builders, as a result of the compliance requirements imposed by the Regulation.

The following is an excerpt from the original article available here:

Bunker supply contracts – legal issues

Both vessel owners and bunker purchasers will want to ensure that they are able to take advantage of the preferential treatment provided under the FuelEU Regulation for consuming renewable fuels, including biofuels and renewable fuels of non-biological origin (RFNBOs) (such as methanol and ammonia).

Article 10 of the FuelEU Regulation states that such fuels must be certified in accordance with the Renewable Energy Directive (RED) 2018/2001. If the fuel consumed by the vessel does not meet the applicable standards or have the appropriate certification, then it “shall be considered to have the same emissions factors as the least favourable fossil fuel pathway for that type of fuel[1].

In order to confirm that the fuel complies with greenhouse gas (GHG) intensity and sustainability requirements, the vessel owner and bunker purchaser will want to ensure that the bunker supplier provides the appropriate certification required under the FuelEU Regulation. The EU has required certification of such fuels, with the aim of guaranteeing “the environmental integrity of the renewable and low-carbon fuels that are expected to be deployed in the maritime sector.”[2]

The FuelEU Regulation provides that the GHG intensity of fuel is to be assessed on a “well-to-wake” basis, with emissions calculated for the entire lifespan of the fuel, from raw material extraction to storage, bunkering and then use on board the vessel.

Vessel owners and bunker purchasers will, therefore, need to be mindful of the importance of establishing how “green” the fuel actually is, and of the risk of bunker suppliers providing alternative fuels that will not allow for preferential treatment under the FuelEU Regulation.

It would, therefore, be advisable for bunker purchasers to consider whether the wording of their bunkering supply contracts is sufficient to ensure that the fuel is properly certified under the FuelEU Regulation. This could include contractual provisions that require the supplier (i) to provide a bunker delivery note (BDN), setting out the relevant information regarding the supply (such as the well-to-wake emission factor), and (ii) to provide the necessary certification under a scheme recognised by the EU.

Bunker purchasers should also be mindful that bunkering supply contracts often contain short claims notification time bars and provisions restricting claims for consequential loss. Issues could therefore arise where a purchaser tries to advance a claim against the supplier for consequential loss due to a lack of certification, but the bunker supplier argues that such losses are excluded under the terms of the bunker supply contract.

Bunker purchasers should therefore consider the wording of their bunker supply contracts carefully and ensure that they are comfortable with the contractual provisions.

 

Photo credit: CHUTTERSNAP from Unsplash
Published: 26 December 2024

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