SCR NOx removal system installed on coal bulker

Nippon Yusen Kabushiki Kaisha (NYK Line), Oshima Shipbuilding Co. Ltd., Mitsubishi Heavy Industries Ltd., Akasaka Diesels Limited, and Sakai Chemical Industry Co., Ltd are to begin shipboard tests of selective catalytic reduction (SCR) nitrogen oxide (NOx) removal equipment installed on NYK Line’s new bulk coal carrier "Initial Salute", which was built by Oshima Shipbuilding.

Shipboard trials of SCR NOx removal equipment were conducted during the voyage of "Initial Salute". Once the equipment was verified to meet the tier III NOx emission controls stipulated by the International Maritime Organization (IMO),it was decided to leave the equipment in place to collect more data through tests to be conducted during actual operational voyages. The installation of SCR NOx removal equipment after turbocharging, on board "Initial Salute" is the world's first trial on a low-speed marine diesel engine.
 
The new SCR NOx removal equipment is said to meet the tier III NOx emission control requirement by further reducing emissions while maintaining the superior combustion efficiency that is the main feature of a low-speed marine diesel engine.
 
NYK Line is proactively involving itself in reducing the environmental impact caused by its vessels. Oshima Shipyard, MHI, Akasaka Diesels, and Sakai Chemical have initiated, as a high-priority issue, R&D that focuses on future environmental regulations to be imposed on vessels. The five companies will continue R&D activities related to the environmental field so as to contribute to the reduction of the environmental impact of the global marine industry.