Impact of Marine Lubricant Additives on SCR Catalyst Performance
Through the International Maritime Organization’s Tier III legislation, the marine industry is committed to a significant reduction of NOx emissions from shipping in the Emission Control Areas by 2016. Marine Engine OEMs & aftertreatment specialists have been preparing to provide compliant solutions for the industry in reaction to this initiative. Not surprisingly Selective Catalytic Reduction, a technique successfully applied on a large scale in other sectors, is often the solution of choice. A known area of caution for SCR installations is the impact of the engine lubricant additives on the long term performance of SCR catalysts. While SCR is already being applied in a small percentage of marine and land-based power generation installations, data on the impact of marine diesel engine lubricants on marine SCR catalysts in well-controlled engine tests is scarce. Johnson Matthey, Chevron Oronite and ExxonMobil - market leading companies in the respective areas of catalysis, lubricant additives and finished lubricants - have collectively researched the impact of marine lubricants on various commercial and experimental SCR catalysts for application in large bore marine and power generation engines operating on Heavy Fuel Oil. An accelerated catalyst aging procedure was developed on Chevron Oronite’s research engine, operating on Heavy Fuel Oil. Using this procedure the effect of various lubricant additives on catalyst effectiveness was determined through catalyst characterization and activity testing. The data shows that actual engine testing is a necessary tool to determine the effect of lubricant composition on Marine SCR performance and that more data, developed under real-world conditions, is needed to fully understand the effects of lubricants on SCR catalysts as applied in marine installations. The outcome of the research will be further explored using the SCR installation on Chevron Oronite’s full scale W(a)rtsil(a) 4L20 marine engine.
Peter Van Houten Maarten Boons John Fogarty Maria Brandmair Martin Ziesmann Joseph McCarney Paul J. Andersen
Chevron Oronite,The Netherlands ExxonMobil Research and Engineering Company,USA Johnson Matthey Catalysts GMBH,Germany Johnson Matthey,UK
国际会议
上海
英文
1-11
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）