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Johnson Matthey SCRT Scheme Cut Nox Emanations by 84% in Fleet Test of Retrofitted Family 8 Trucks

27 March 2008

In a demonstration victimisation 16 aged retrofitted Family 8 market trucks that are part of Raley’s fleet, the Samuel Johnson Matthey (JM) SCRT four-way control duty system decreased by an average of 84% equated to pre-retrofit levels.

The motortrucks mired had got 2004 Cummins, 400 hp School of thought locomotives with an EGR (exhaust gas recirculation) system. The Doctrine is an usually exploited locomotive in Family 8 trucks truckage fleshy piles. Doing work with partner Cummins Emanations Resolutions, the Samuel Johnson Matthey emissions system was well for more than 1,000 hours as the motortrucks travelled end Northern Golden State truckage grocery store wares to Raley’s household of market stores.

The demonstration program mired a local partnership betwixt Raley’s, the Capital of California Metropolitan Air Quality Direction District (SMAQMD), and the Capital of California Exigency Clear Atmosphere and Transit program (SECAT).

The next stage for this engineering is confirmation by the Golden State Air Imaginations Board and the US Environmental Protective covering Office, that is afoot nowadays that the 1,000 hours of real life use has been accomplished. Samuel Johnson Matthey has about 50 demonstration unit of measurements turning tail in Calif and Lone. After thous of hours of military operation, the SCRT system retrofits on both EGR and non-EGR railway locomotives has trimmed NO emissions by as lots as 84%.

The 4-way SCRT exhaust emanation control system combines Samuel Johnson Matthey’s patented two-stage Ray tube particulate filter system (to trim down particulate thing by more than 85%) with a selective catalytic down (SCR) catalyst that cuts oxides of nitrogen (NO) betwixt 60 - 80%. It likewise trims down carbon monoxide (CO) and hydrocarbons (HC) by more than 90%. The outcome is an elderly motortruck with NO emissions toned than those of an and 2008 truck.

Locomotive exhaust first flows through the Cathode Rudolf Christian Karl Diesel particulate filter to trim down CO, PM, and HC. A commanded amount of carbamide is then shot into the exhaust fumes earlier it goes in the SCR catalyst bed. The SCR system lies in of a commercially uncommitted carbamide injectant system and a JM-developed control system that just presents carbamide
without ammonium hydroxide slip. The railway locomotive likewise uses JM’s proprietary SCR catalyst engineering that can be backed up by metal or ceramic monolith substratums of assorted cell denseness for maximum catalyst action and minimum force per unit area drop.

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March 27, 2008 in DieselEmissionsHeavy-dutyPermalinkComments (0)TrackBack (0)

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