Reductant Agent Supply Systems News

ClassNK Issues First Ever Statement of Fact for Tier III NOx Emissions for an SCR-equipped Diesel Engine. ClassNK announced today that it had awarded its first ever Statement of Fact for Tier III nitrogen oxide (NOx) reductions to a marine diesel engine incorporating a Selective Catalytic Reduction (SCR) system. The document, issued on 1 November 2011, verifies that the NOx emission measurement results for the engine, fitted with a pre-turbocharger SCR system developed by Hitachi Zosen Corporation…

ClassNK has announced the release of its new Guideline for SCR (Selective Catalytic Reduction) Systems and Reductant Agent Supply Systems. The new guidelines address the strengthening of nitrogen oxide (NOx) emission regulations as stipulated in amendments to Annex VI of the International Convention for the Prevention of Pollution from Ships 1973 (MARPOL) which entered into force on 1 July 2010. With these amendments to MARPOL requiring 80% reductions in NOx emissions from diesel engines from 2016, a number of new technologies and alternative fuels are currently being investigated for their emission reduction potential. As SCR systems already have a proven track record in Europe as aftertreatment systems…