Home Ammonia MAN ES: World’s 1st SCR for ammonia engine tested
December 21, 2023, by Jasmina Ovcina Mandra
Exciting news! MAN Energy Solutions, in collaboration with Germany-based stainless-steel processor BUTTING, has revealed that the world’s first selective catalytic reduction (SCR) converter intended for an ammonia engine has passed its factory acceptance test.
Image credit: MAN ES
The SCR converter measures an impressive 3.9 meters in diameter and boasts a weight of 28 metric tonnes. Known as the Cluster 5 Double Layer, the converter, built by BUTTING, is described as the largest SCR converter built to date and is the world’s first SCR (High Pressure) designed for a commercial two-stroke ammonia engine.
The SCR converters play a pivotal role in the maritime industry, specifically in cruise and cargo ships, where they are employed to significantly reduce nitrogen oxide emissions, up to 90%.
MAN Energy Solutions has invested over 71,000 R&D man hours to the development of the world’s first ammonia-powered marine engine. The process saw the company file 37 patent applications as part of an extensive research and development process.
The successful completion of combustion tests on the two-stroke ammonia engine in July 2023, followed by a seamless transition to 100% engine load on ammonia in August, marked a significant milestone for engine development. Further tests are scheduled for 2024, coinciding with the design and testing of a commercial version of the ammonia engine, with delivery slated for 2024.
