WinGD’s NOx reduction technology set for commercial launch

Swiss marine power company Winterthur Gas & Diesel (WinGD) has announced that its on-engine NOx (nitrogen oxides) reduction technology for marine two-stroke engines is now ready for commercial launch.

PHOTO: WinGD’s engine with NOx reduction technology. WinGD

The technology, Integrated Selective Catalytic Reduction (iSCR), will soon be deployed on commercial engines, it said.

It was tested at the Mitsui E&S DU (MESDU) factory in Aioi, Japan, where three WinGD engines are being built for bulk carriers that are under construction at a Japanese shipyard.

The technology is an emissions control system that combines diesel particulate filtration with SCR technology. It uses a catalyst and urea-based solution to convert NOx into nitrogen and water, reducing both particulate matter and NOx emissions.

It received type approval after more than two years of operation with a prototype. The test, conducted in January, was observed by representatives from eight major classification societies, including American Bureau of Shipping, Bureau Veritas, China Classification Society, DNV, Korean Register, Lloyd's Register, ClassNK and RINA.

According to WinGD, the system features a heating unit for compatibility with heavy fuel oil and design refinements to further minimise ammonia slip.

The system is available as an option for WinGD’s 52- and 62-bore engines, including short-stroke versions, and supports multiple fuel types, including conventional fuel oil, ammonia and methanol.

By Tuhin Roy

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