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The development of this high-pressure SCR system lasted more than 10 months. The successful implementation of the first domestic high-pressure SCR commodity research and development is an important step for Hudong Heavy Machinery to implement the reform and innovation strategy of CSSC, from a single manufacturing enterprise to the development of R&D, manufacturing and service integration. The development of the power sector of CSSC has achieved new achievements. 
On August 18, 2017, Hudong Heavy Machinery Co., Ltd. successfully inspected the first low-speed marine diesel engine with independent research and development of high-pressure SCR. The successful delivery of this SCR product marks the breakthrough of Hudong Heavy Machinery in the field of energy saving and emission reduction. This is another product that can meet the Tier III emission regulations after the WinGD dual fuel host is delivered domestically. It is reported that the HHM-MAN6S60ME-C8.5 mainframe is equipped with a high-pressure SCR system independently developed by Hudong Heavy Machinery. It will be applied to a 1100-tank container ship built for American shipowner Shipping, and the measured NOx emission value is 2.74g/kW. h, much smaller than the 3.4 g/kW.h required by Tier III. According to the MARPROL Annex VI Amendment Act of 2011, ships built on or after January 1, 2016 must meet the Tier III emission standard, ie, NOx emissions are 76.4% lower than Tier II when sailing in the emission control zone. Although some ports have delayed the implementation of the regulations, it is imperative to manufacture diesel engines that meet the new emission requirements, and there is no time to delay. SCR is Selective Catalytic Reduction. It works by catalytic reduction of exhaust gas to reduce NOx emissions.
July 19, 2023