Volvo Group to use SCR for 2010

Volvo Trucks North America (VTNA) and Mack Trucks, both companies of the Volvo Group, will use selective catalytic reduction (SCR) to meet EPA's 2010 diesel engine emissions standards. SCR is an aftertreatment technology that involves injecting a water-based solution containing urea into the hot exhaust stream of an engine. The urea, in conjunction with a catalyst in the exhaust aftertreatment system, breaks down the NOx into nitrogen and water vapor. According to VTNA, urea is an organic nitrogen-containing compound commonly used in agriculture as a fertilizer and is classified by EPA as a nonhazardous substance. Volvo and Mack ...

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From the Print Issue

November 2009

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