MAN-ES Paves The Way For Maritime Sector With Successful Ammonia Engine Test

The Cluster 5 Double Layer, constructed by BUTTING, is the largest SCR converter to date, with an outstanding 3.9-meter diameter and 28 metric tons in weight. Additionally, it is the first SCR (High Pressure) for an industrial two-stroke ammonia engine in the world.

SCR converters are essential to the marine sector; in particular, they are used in cargo and passenger vessels to cut nitrogen oxide emissions by up to 90%. MAN Energy Solutions’ managing director in Japan, Daniel Struckmeier, expressed his excitement regarding the “historic” delivery and the successful completion of the Factory Acceptance Test.

Despite a lengthy collaboration with MAN ES, BUTTING has never before constructed an SCR catalytic converter of such magnitude. BUTTING continued that the product quality was verified during the last inspection a few weeks ago by MITSUI and MAN Energy Solutions following a successful water pressure test.

After that, a low-loader was used to retrieve the component from Tieling, and it was transferred via Kobe, Japan, from Dalian in China to Tamano in Japan. Beginning in 2023, BUTTING moved its SCR catalytic converter series production from Knesebeck to Tieling in China. At the head office, engineering and prototype building are still supported.

Over 71,000 R&D man hours have been devoted by MAN Energy Solutions to creating the first marine engine fueled by ammonia. As part of a comprehensive research and development process, the company filed 37 patent applications.

An important turning point in engine development was reached in July 2023 with the fruitful completion of combustion experiments on the two-stroke ammonia engine. In August of the same year, there was a smooth transfer to 100% engine load on ammonia. Additional testing is planned for 2024, which also happens to be the year that a commercial version of this ammonia engine is designed and tested, with delivery planned for the same year.

Reference: MAN

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