MAN ES delivers world’s largest, ammonia-ready SCR to Mitsui E&S

German engine manufacturer MAN Energy Solutions (MAN ES) has delivered a massive Cluster 5 Double Layer selective catalytic reduction (SCR) catalytic converter to Japanese heavy industries company Mitsui E&S.

As informed, the cluster comes ammonia-ready and is the largest such unit that the company has ever built. Such systems are typically used aboard cruise ships and cargo ships and, according to MAN ES, they are able to reduce nitrogen oxide emissions by 90 percent. The Cluster 5 Double Layer has a diameter of 3,900 mm and a total weight of 28 metric tons.

Specifically, MAN SCR control systems are integrated into the overall engine-control system and adapted to the fuel-injection system and turbocharger, to enhance the efficiency and reliability of the entire system.

MAN ES noted that up to 2.5 g/kWh of fuel-oil consumption can be saved thanks to the integration of MAN SCR and optimized control strategies. Besides reducing NO_x emissions by up to 90 percent, they can also deliver IMO Tier III compliance and increase efficiency with respect to fuel and urea consumption.

Following a successful water-pressure test, the component was subsequently shipped from Dalian, China to Tamano, Japan.

“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,” Daniel Struckmeier, Head of Sales & License Turbochargers & Exhaust Gas Treatment APAC, said.

MAN ES and Mitsui E&S recently achieved a milestone in the maritime industry with the world’s first hydrogen combustion operation of a large marine engine.

The hydrogen combustion operation of a large marine 2-stroke test engine with a bore size of 50 cm was completed on the premises of Mitsui E&S Tamano factory in Japan, aiming for the early launch of hydrogen-related businesses in the maritime industry.