ClassNK has verified the methane slip reduction effect of the methane slip reduction system, jointly developed by Hitachi Zosen Corporation, Mitsui O.S.K. Lines, Ltd. (MOL) and Yanmar Power Technology Co., Ltd. (Yanmar PT), and issued a Statement of Fact (SOF).
A concept of the methane oxidation catalyst system was designed by Hitachi Zosen and Yanmar PT as part of a project that was adopted by Japan’s New Energy and Industrial Technology Development Organization (NEDO) as 'Development of Methane Slip Reduction Technology from LNG Fuelled Vessels by Improving Catalysts and Engines', under the Green Innovation Fund, and ClassNK issued approval in principle (AiP) for that conceptual design.
LNG combustion conditions
Based on the test procedure submitted by Yanmar PT, ClassNK has issued an SOF upon confirming the methane slip reduction effect under LNG combustion conditions of marine dual-fuel engines equipped with a methane slip reduction system.
Starting around autumn 2024, a large coal carrier operated by MOL is planned to undergo trial in actual sea areas. ClassNK will continue to ensure the environment for the early establishment of decarbonisation technologies by providing technical verifications for advanced initiatives.