ClassNK issues statement of fact for methane slip reduction system developed by Hitachi Zosen, MOL, and Yanmar PT

A concept of the methane oxidation catalyst system, a device is designed to reduce methane slip by placing a methane oxidation catalyst in the exhaust piping of an LNG-fuelled engine and oxidising the unburned methane on the catalyst, was designed by Hitachi Zosen and Yanmar PT as part of a project which was adopted by Japan’s New Energy and Industrial Technology Development Organization (NE-DO) 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. In this project, the partner companies aim to achieve a methane slip reduction rate of more than 70% for LNG-fuelled vessels over a six-year period from FY21 – FY26. The reduction will be achieved by combining methane oxidation catalysts and engine improvements thereby further reducing the environmental impact of LNG-fuelled vessels.

Based on the test procedure submitted by Yanmar PT, ClassNK has issued a 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.

Read the article online at: https://www.lngindustry.com/lng-shipping/11042024/classnk-issues-statement-of-fact-for-methane-slip-reduction-system-developed-by-hitachi-zosen-mol-and-yanmar-pt/