Connect with us

Alternative Fuels

Infineum: Proving marine additive performance

Infineum has invested in the development of robust new testing methods to satisfy end users by providing significant data in order to comply with the rigors encouraged by CII.

Admin

Published

on

CAmeron

Infineum fuels technologist Amy Challinor and Global Market Manager Rob Ashton on Tuesday (7 December) released an article explaining how in recent tests of the latest combustion improver technology from Infineum has outperformed conventional ferrocene-based additive technology across the board in high and low sulphur marine fuels.

To facilitate the drive towards greenhouse gas emissions reduction and improved air quality, the International Maritime Organization (IMO) has targeted a 40% reduction in carbon intensity for the shipping fleet by 2030, with further improvement to 50% by 2050 relative to 2008 levels. With so much action required in such a relatively short timescale, the IMO has developed a timeline and introduced a number of measures to quantify performance improvements to help drive the necessary change.

dec 21 marine 1000

Definitions:

  • Energy Efficiency Design Index (EEDI) is an energy efficiency calculation for each individual ship, expressed in grams of carbon dioxide (CO2) per ship’s capacity-mile. A lower EEDI points towards a more energy efficient ship design. A continuous improvement energy efficiency drive is incorporated into the program to encourage the adoption of the latest energy saving technologies.
  • Ship Energy Efficiency Management Plan (SEEMP) introduced for all ships is a measure aimed at improving operational energy efficiency through enhanced vessel operation, be that by route planning or hardware upgrades/maintenance.
  • Efficiency Existing Ship Index (EEXI) is similar in scope to EEDI but targets all existing vessels over 400 gross tonnage and references the CO2 emissions per cargo ton and mile in relation to the engine output, load and speed.
  • Carbon Intensity Indicator (CII), for ships of 5,000 gross tonnage and above, measures the actual fuel consumption and distance travelled for each ship.

Action is required now

To meet these targets ship operators must look for new ways to improve fuel economy and cut emissions, while also reducing running costs and down time. Improving combustion efficiency to ensure more energy is transferred into forward propulsion is one factor for ship operators to consider.

However, some conventional fuel-borne combustion improvers have had a somewhat tarnished reputation owing to exaggerated claims of fuel economy and emissions reduction benefits.

The fuel standard for marine distillate fuels (ISO 8217) currently addresses fuel combustion quality through the Calculated Carbon Aromaticity Index (CCAI), which, as the name suggests, is a calculation using the density and the kinematic viscosity of the fuel. It is recognised, with the introduction of very low sulphur fuel oils, that CCAI may not give an accurate reflection of a fuel’s combustion quality due to increased utilisation of cracked cutter stock into the fuel blending pool.

Infineum has invested in the development of robust new testing methodologies to satisfy end users by providing significant data and in order to comply with the rigors encouraged by the CII.

The evaluation of the new combustion improver additive technology has been carried out using this new testing regime. This has enabled us to accurately determine the potential for statistically significant fuel economy and emissions reduction benefits and to demonstrate whether the additive can make a positive contribution towards CII.

Testing programme

The engine test program (using a four-stroke, six cylinder, 1202 kW stationary engine) was conducted at critical marine engine operating points to explore and understand the impact of current combustion improver technology (based on ferrocene), as well as to assess a new Infineum additive formulation.

Owing to the variety of fuels available in the market, it was important to explore the performance of these additive technologies across the heavy fuel oil spectrum. To this end, data were generated in:

  • Traditional high sulphur fuel oil (HSFO), which is used in ships fitted with exhaust gas abatement technology (e.g. scrubbers). A high CCAI RMG380 fuel was used in this study.
  • Very low sulphur fuel oil (VLSFO), which is the most commonly used marine heavy fuel oil.

INF 1

The engine test sequence using HSFO with the new Infineum additive revealed improvements across all parameters relative to the base fuel. Minor improvements (coupled with some debits) were observed with the conventional ferrocene-based combustion improver additive.

2 n

Similarly, the engine test sequence using VLSFO with the new Infineum additive yielded robust results and once again performed significantly better than the ferrocene-based combustion improver. Unfortunately, it was not possible to establish a statistical baseline for nitrogen monoxide (NO) and total hydrocarbons emissions during these sequences.

3 n

The engine testing programme demonstrated that the Infineum combustion improver additive was able to deliver significantly better fuel economy and emissions benefits relative to a ferrocene-based combustion improver in both HSFO and VLSFO fuels. The reduction in filter smoke number achieved not only results in less visible smoke but also facilitates cleaner post combustion hardware (e.g. turbocharger blades).

Further testing of the new additive demonstrated its ability to upgrade lower quality fuels whilst maintaining trouble-free operation across the marine fuel oil spectrum (HSFO and VLSFO), which will give tangible, cost effective sustainability benefits to ship operators.

In addition to the combustion performance, the additive is able to confer fuel stability benefits. The additive can also significantly reduce fuel waste (in the form of sludge output from the purifier), resulting in further fuel economy credits coupled with reduced waste reprocessing costs.

Conclusion

As the IMO targets to reduce emissions from ships edge ever closer, ship operators must work harder and faster to find new ways to burn less fuel. Proven combustion improver technology not only delivers ~1% improved fuel economy performance and can make a positive contribution to CII, but also comes with a number of additional benefits:

lst

 

There is no doubt that improving the fuel economy performance of ship operations is becoming increasingly important. By improving combustion efficiency more energy is transferred into forward propulsion, less fuel is wasted and hardware stays cleaner for longer, which translates into reduced emissions, lower running costs and less downtime.

Note: Download this article

 

Source: Infineum International Limited
Photo credit: Cameron Venti from Unsplash
Published: 10 December, 2021

Continue Reading

Alternative Fuels

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

Admin

Published

on

By

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Taiwanese shipping firm Yang Ming Marine Transport Corporation (Yang Ming) and South Korean shipbuilder Hanwha Ocean on Wednesday (2 September) signed a shipbuilding contract for six 13,000 TEU class LNG dual-fuel container vessels. 

The contract was signed by Dr. Chuck Tsai, Chairman of Yang Ming, and Mr. Charles Kim, CEO of Hanwha Ocean. The vessels are scheduled for delivery between 2028 and 2029. 

They will complement Yang Ming’s existing fleet of 10,000+ TEU vessels and serve as key vessels on East-West services, with deployment flexibility across trade lanes connecting Asia with the East and West Coasts of North America, South America, and the Mediterranean. 

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

“As Yang Ming transitions toward net-zero emissions, LNG provides a relatively mature and economically viable alternative fuel solution, capable of reducing greenhouse gas emissions by approximately 20%,” the company said. 

“At the same time, ammonia can serve as a carbon-free fuel by utilising converted LNG storage facilities, while offering relatively lower conversion costs and comparatively well-developed supply chains and infrastructure. The Ammonia Fuel Ready design will therefore provide Yang Ming with greater flexibility in responding to increasingly stringent international regulations on greenhouse gas emissions.”

In addition, the vessels will be equipped with Type B LNG fuel tanks with a design pressure of 1.0 bar to enhance the safety and efficiency of LNG operations, together with a range of energy-saving technologies, including Wind Shields, Rudder Bulbs, Pre-Swirl Stators, and Shore Power Systems. Smart ship technologies and cybersecurity protection features will also be incorporated to enhance operational efficiency, safety, and reliability while effectively reducing fuel consumption and greenhouse gas emissions.

Deliveries under Yang Ming’s next-generation fleet optimization plan commenced earlier this year. By 2030, a total of 24 new vessels are expected to enter service. 

This includes 18 LNG dual-fuel vessels—comprising five 15,500 TEU, seven 16,000 TEU, and the six 13,000 TEU vessels under this contract—alongside six 8,000 TEU methanol dual-fuel-ready ships. 

 

Photo credit: Yang Ming Marine Transport
Published: 4 September, 2026

Continue Reading

Alternative Fuels

LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Both secured AiP for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Admin

Published

on

By

LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Lloyd’s Register (LR) and the Marine Design and Research Institute of China (MARIC) on Thursday (3 September) have secured Approval in Principle (AiP) for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Announced at SMM 2026, the concept addresses one of the biggest investment challenges facing shipping today: the need to develop vessels and capabilities that can support a range of alternative fuel options and pathways as technologies, infrastructure and regulations evolve.

While LNG is already a mature fuel pathway, methanol and ammonia remain at an earlier stage of development, with questions around global fuel availability, infrastructure development, economics and long-term adoption.

The 114,000 DWT tanker concept has been designed as a product and crude oil carrier that can accommodate future conversion to LNG, methanol or ammonia as technologies, regulations and fuel supply chains mature. By incorporating conversion readiness at the design stage, the concept aims to reduce future retrofit complexity and provide owners with greater confidence when planning long-term fleet investments.

The design concept was reviewed against LR’s July 2026 class rules and regulations, including requirements relating to ships using gases and other low-flashpoint fuels, alongside relevant IACS Common Structural Rules for oil tankers. Final classification and statutory approval remain subject to full compliance with all applicable rules and regulations.

Theo Kourmpelis, Global Business Director for Tankers, Lloyd’s Register, said: “Shipowners are being asked to make major investment decisions today despite continued uncertainty around which fuels will dominate in the decades ahead. Alternative fuel solutions each offer potential pathways to compliance, but fuel infrastructure, regulation and economics continue to evolve at different speeds around the world.

“Designs that preserve flexibility will be critical in helping owners manage risk while preparing for multiple future scenarios.”

Si Nan, Marine & Offshore Marketing Department Vice Director, MARIC, said: “As the industry explores different decarbonisation pathways, shipowners need vessel designs that can adapt alongside technological and regulatory developments. This concept was developed specifically to provide greater fuel flexibility and long-term resilience, allowing owners to respond to changing market requirements without being locked into a single fuel strategy.

“Receiving Approval in Principle from Lloyd’s Register is an important milestone that validates the design concept and supports its future development.”

 

Photo credit: Lloyd’s Register
Published: 4 September, 2026

Continue Reading

Alternative Fuels

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

LNG-fuelled vessels accounted for the vast majority of August activity while the strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year.

Admin

Published

on

By

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

Latest data from classification society DNV’s Alternative Fuels Insight (AFI) platform alternative-fuelled vessel ordering was strong in August, with 52 new vessels added to the platform.

This is the highest monthly total since October 2024 and follows another active month in July, when 47 vessels were added to the database.

LNG-fuelled vessels accounted for the vast majority of August activity, with 46 orders recorded. The container segment led the way with 30 orders, while the car carrier segment contributed a further 12 LNG-fuelled vessels. In addition, four ethanol-fuelled bulk carriers and two hydrogen-powered bulk carriers were added during the month, as well as one LNG bunker vessel.

The strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year. In total, 242 alternative-fuelled vessel orders have been placed in the first eight months of 2026, representing a 27% increase compared with the same period in 2025.

LNG remains the dominant fuel choice, accounting for 63% of all alternative-fuelled vessel orders registered so far this year. Container vessels represent the largest share of these LNG orders (59%), followed by car carriers (30%).

Jason Stefanatos, Global Decarbonization Director at DNV Maritime, said: “The past two months have been particularly strong for alternative-fuelled vessel ordering, with August recording the highest monthly total we’ve seen since October 2024. This has helped lift year-to-date orders to a level well above the same period last year.

“LNG remains the leading fuel choice, driven largely by activity in the container and car carrier segments. These sectors have been among the earliest adopters of alternative fuels, supported by predictable liner operations and increasing demand from cargo owners to reduce emissions across supply chains. 

“For many owners, LNG offers a combination of emissions reductions, fuel availability and future flexibility while the longer-term fuel landscape continues to evolve. 

“At the same time, the latest figures include orders for ethanol- and hydrogen-fuelled vessels, highlighting that owners continue to explore a range of decarbonization pathways. Different segments are making different fuel choices, but the overall level of activity demonstrates continued investment in lower-emission shipping.”

Screenshot 2026 09 04 at 12.29.26 PM Screenshot 2026 09 04 at 12.29.36 PM

 

Photo credit: DNV
Published: 4 September, 2026

Continue Reading

Trending