MAN Energy Solutions has announced the production of its largest yet Cluster 5 Double Layer SCR (Selective Catalytic Reduction) catalytic converter for Japanese customer Mitsui E&S.
The SCR is supplied ammonia-ready. These systems are typically used aboard cruise ships and cargo vessels to reduce NOx emissions by around 90%.
Dr Daniel Struckmeier, Head of Sales and License, Turbochargers and Exhaust Gas Treatment APAC, said: “As the very first SCR for an ammonia engine anywhere in the world, this is a historic moment. As the largest, high-pressure SCR we have ever built, this marks a new milestone for our business. The new equipment also passed its Factory Acceptance Test without any major issues and I congratulate everyone involved in this groundbreaking project.”
The Cluster 5 Double Layer has a diameter of 3,900mm, a total weight of 28t, and will shortly be available for series production. The quality of the product was confirmed during the final inspection by MAN Energy Solutions and Mitsui E&S. Following a successful water-pressure test, the component was subsequently shipped from Dalian, China to Tamano, Japan.
MAN SCR control systems are integrated into the overall engine control system and adapted to the individual fuel injection system and turbocharger, enhancing the efficiency and reliability of the system. Up to 2.5 g/kWh of fuel oil consumption can be saved thanks to the integration of MAN SCR and optimised control strategies compared to the use of an SCR system provided by a third-party supplier. Besides reducing NOx emissions by up to 90%, they deliver IMO Tier III compliance and increased efficiency in respect to fuel and urea consumption.
Image: Cluster 5 Double Layer SCR (source: MAN Energy Solutions)
