Japan has made a major leap in maritime decarbonization with its Methane Slip Reduction Project, achieving a 98% reduction in methane emissions during onboard trials of LNG-fueled vessels. This milestone significantly exceeds the original target of 70%, marking a transformative moment in the push for cleaner shipping technologies.
Project Overview
The initiative is part of the Green Innovation Fund Project titled “Development of Next-Generation Vessels”, led by the New Energy and Industrial Technology Development Organization (NEDO). Key collaborators include:
- Mitsui O.S.K. Lines (MOL)
- Kanadevia Corporation
- Yanmar Power Solutions
What Is Methane Slip?
Methane slip refers to the release of unburned methane from LNG-fueled engines. Although LNG is considered a cleaner alternative to traditional marine fuels, methane is a potent greenhouse gas—over 25 times more impactful than CO₂ over a 100-year period.
Technology Behind the Success
The project combines two core innovations:
- Methane Oxidation Catalysts – These chemically convert methane into less harmful substances.
- Engine Improvements – Enhancements to combustion efficiency reduce the amount of unburned methane.
The trials were conducted aboard actual LNG-powered vessels, validating the technology in real-world conditions.
Implications for the Shipping Industry
This breakthrough could reshape the future of LNG as a marine fuel, making it a more viable long-term solution in the global effort to reduce greenhouse gas emissions from shipping. It also strengthens Japan’s leadership in maritime environmental technology.
The Maritime-Hub Editorial Team
Disclaimer: The views and opinions expressed in this article are solely those of the author and do not necessarily reflect the official policy or position of Maritime-Hub. Readers are advised to research this information before making decisions based on it.
