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Lloyd’s Register releases ‘Technical Report: NOx from marine diesel engines using biofuels’

Technical update consolidates client experience and industry feedback from sea trial findings on NOx emissions when using biofuels as a bunker fuel.
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LR technical report NOx from marine diesel engines using biofuels

Classification society Lloyd’s Register (LR) recently released the Technical Report: NOx from marine diesel engines using biofuels document.

The technical update, which follows technical insights from the outcomes of early biofuel trials in marine diesel engines, consolidates client experience and industry feedback from sea trial findings on NOx emissions when using biofuels.

Summary of NOx emission findings

There are four key observations from the trials in which LR acted as an independent advisory body to assess the means of gathering data, carrying out analysis and supporting clients in the presentation of the final outcome of the trials to the flag administrations:

  1. In terms of magnitude, NOx emissions were not significantly increased across the load range, in any instances by the use of any of the biofuels trialled.
  2. In terms of range, the majority of the NOx emission changes resulting from the use of those biofuels were no more than that level of trial repeatability.
  3. Each combination of biofuel and engine has its own particular NOx emission characteristics.
  4. For all the biofuel trials undertaken, there were no specific engine adjustments; the NOx critical settings or operating values were retained, as given in the respective Technical Files, as they would be for the use of the petroleum derived fuels.

The general feedback from ships which have undertook onboard NOx measurements was that the process represented a substantial extra workload which is far removed from normal service.

The findings from such work are inevitably constrained by the realities of working with installed and in-service engines and their associated systems, together with the real-world difficulties of undertaking necessary measurements.

Therefore, many ships which initially seek to use biofuels to potentially reduce their greenhouse gas emissions are being restrained by the complexity of having to determine NOx emissions.

The following organisations have shared their insights:

  • Canadian Steamship Lines
  • Maran Dry Management, Angelicoussis Group
  • d’Amico Società di Navigazione
  • Major oil tanker operator
  • Good Fuels (biofuel supplier)
  • CMA CGM
  • Wärtsilä (Engine Builder)
  • MAN Energy Solutions SE (Engine Builder)

Note: The Technical Report: NOx from marine diesel engines using biofuels document may be downloaded from this link: https://www.lr.org/en/resources/nox-from-marine-diesel-engines-using-biofuels/

 

Photo credit: Lloyd’s Register
Published: 5 April, 2022

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LNG Bunkering

PIL’s LNG dual-fuel boxship “Kota Elok” arrives in Singapore on maiden call

As the first of 13 new 13,000 TEU vessels joining its fleet, Kota Elok is equipped to operate on LNG and low-sulphur fuel oil that helps reduce our greenhouse gas emissions.

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July 21, 2026

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PIL's LNG dual-fuel boxship “Kota Elok” arrives in Singapore on maiden call

Singapore-based Pacific International Lines Pte Ltd on Monday (20 July) said its first 13,000 TEU LNG dual-fuel container vessel, Kota Elok, recently made her maiden call to Singapore on 15 July.

As the first of 13 new 13,000 TEU vessels joining its fleet, Kota Elok is equipped to operate on liquefied natural gas (LNG) and low-sulphur fuel oil that helps reduce our greenhouse gas emissions. 

The vessel also incorporated energy-saving features and digital technologies to reduce fuel consumption and enhance operational performance, as well as a bow windshield to improve aerodynamics, contributing to improved fuel efficiency and lower emissions over the course of long-haul voyages.

“Following Singapore, Kota Elok will continue her voyage on our East Coast Service 1 (ES1) route to South America, calling at ports in Brazil, Uruguay, and Argentina before returning to Asia,” the company said in a social media post. 

Kota Elok also became PIL’s first vessel to receive Lloyd’s Register certification for compliance with the IACS UR E26 and UR E27 cyber security requirements.

Developed by the International Association of Classification Societies (IACS), UR E26 and UR E27 are mandatory cyber resilience requirements for newbuild vessels contracted from 1 July 2024. 

 

Photo credit: Pacific International Lines
Published: 21 July, 2026

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LNG Bunkering

CIMC SOE secures order for 12,000-cbm LNG bunkering vessel from Sinopec Clean Energy

Once operational, the vessel is expected to strengthen Sinopec’s domestic coastal LNG bunkering network and help address gaps in China’s alternative fuel bunkering infrastructure.
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July 21, 2026

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CIMC SOE secures order for 12,000-cbm LNG bunkering vessel from Sinopec Clean Energy

China’s Nantong CIMC Sinopacific Offshore & Engineering Co., Ltd. (CIMC SOE) recently signed a contract with Sinopec (Beijing) Clean Energy Co., Ltd. to build a 12,000-cubic metre (m3) LNG bunkering vessel, according to Chinese maritime media.

The vessel is scheduled for delivery in 2028 and will support Sinopec’s efforts to expand its presence in the marine clean energy sector.

Once operational, the vessel is expected to strengthen Sinopec’s domestic coastal LNG bunkering network and help address gaps in China’s LNG bunkering infrastructure.

With this signing , CIMC Pacific Offshore Engineering’s LNG bunkering vessel orderbook is further strengthened, maintaining its leading position in the global market for small and medium-sized LNG bunkering vessels.

The contract also marked another milestone for CIMC SOE, which has seen a sharp increase in orders and business performance this year amid a surge in domestic LNG vessel demand.

 

Photo credit: Nantong CIMC Sinopacific Offshore & Engineering
Published: 21 July, 2026

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Nuclear

ABS awards AiP to Korean institute for SMR-powered container ship concept design

KRISO says AiP recognises the technical feasibility and safety of its concept design, marking an important milestone toward the development of next-generation nuclear-powered commercial ships.
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July 21, 2026

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ABS awards AiP to Korean institute for SMR-powered container ship concept design

Korea Research Institute of Ships & Ocean Engineering (KRISO) on Thursday (16 July) received Approval in Principle (AiP) from the American Bureau of Shipping (ABS) for its concept design of a 15,000 TEU Small Modular Reactor (SMR)-powered container ship utilising Molten Salt Reactor (MSR) technology.

KRISO said the AiP recognises the technical feasibility and safety of its concept design, marking an important milestone toward the development of next-generation nuclear-powered commercial ships.

“This achievement demonstrates international recognition of KRISO’s technological capabilities in the rapidly evolving field of nuclear-powered shipping, supporting the transition toward low-carbon maritime transport,” it said. 

Building on this milestone, KRISO will continue advancing basic and detailed ship design, paving the way for future demonstration and commercialisation of SMR-powered vessels. 

Through continued R&D and international collaboration, KRISO remains committed to strengthening next-generation maritime technologies and contributing to the safe deployment of nuclear propulsion in the maritime industry.

 

Photo credit: Korea Research Institute of Ships & Ocean Engineering
Published: 21 July, 2026

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