NYK launches long-term trial of 100% biodiesel on car carrier

Photo: NYK

NYK announced June 2 that it has begun a one-year long-term trial involving the continuous use of 100 percent biodiesel (B100) on an NYK-operated car carrier.

The initiative is designed to evaluate the fuel’s effects on the vessel’s equipment and verify operational safety under real-world conditions.

Through this effort, NYK said it seeks to accumulate technical expertise that will support the broader use of high-purity biofuels and further accelerate efforts to reduce greenhouse-gas (GHG) emissions.

Amid growing global demand for decarbonization, the shipping industry has been actively introducing alternative fuels that contribute to reducing GHG emissions.

Biofuels are regarded as a promising “drop-in fuel” option because they can be used with existing ship engines and infrastructure.

NYK has been advancing the use of biofuels through various initiatives.

In 2024, the company conducted a trial using B24 and subsequently expanded practical usage to B30.

There remains limited global experience, however, with the long-term continuous use of B100.

In this trial, NYK will operate a car carrier continuously on B100 for one year to evaluate the impact on engines, fuel supply systems and operational practices.

High-purity biofuels such as B100 are known to be susceptible to degradation from oxygen, light and heat, raising concerns about the stability of such fuels during long-term use, NYK stated.

By collecting long-term operational data through this trial, NYK aims to accumulate valuable technical insights to support both the safe operation of vessels and the wider adoption of high-purity biofuels.

Building on the findings from this trial, NYK said it will continue technical evaluations and promote initiatives aimed at realizing sustainable maritime transportation.