Tacking marine pollution with SCR technology
22 May 2019 | Web Article Number: ME201914638
A cost-effective solution to tackling maritime pollution could soon be rolled out world-wide after leading engine manufacturer, Cummins, demonstrated the technology at a global marine tech seminar.
According to the company’s Arabia Upstream and Design Manager, Engineering, Magdolin Mikhail, Cummins was responding to industry demand for regulatory compliance with an investment in technology, containing measures to control NOx emissions from its diesel engines.
“We have chosen Selective Catalytic Reduction (SCR) technology as one of the most cost-effective and fuel-efficient technologies available to help reduce NOx emissions,” he told a marine technical seminar in Dubai in the United Arab Emirates recently.
An SCR system consists of three main elements: an SCR catalyst, a urea dosing system, and the aftertreatment control system. The Cummins’ system uses a chemical reductant, in this case urea, known as Diesel Exhaust Fluid (DEF) in North American, or AdBlue in Europe. DEF or AdBlue converts to ammonia in the exhaust stream and reacts with NOx over a catalyst to form harmless nitrogen gas and water.
Entitled the ‘Evolution of Emission Regulations and New Technologies to Support the Marine Industry’, the technical seminar was attended by 108 ship owners, managers, executives from shipyards, engineering firms, oil and gas exploration and services companies, suppliers, service companies, marine consultants, independent surveyors, classification societies managers, inspectors from regional flag administrations, and port officials from the Middle East.
“Environmental responsibility is a priority for Cummins, and we strive to actively reduce our carbon footprint. It is through technical meetings like these that gives Cummins an opportunity to exchange ideas and best practices with our customers,” Mikhail said.