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Demonstration Begins of New Diesel Emissions Treatment System for Locomotives

The demonstration of a new system to capture and treat emissions from diesel train locomotives is beginning today at the Union Pacific railyards in Roseville, California.

The Advanced Locomotive Emission Control System (ALECS) applies technology used to capture emissions from industrial plants to near-stationary locomotives.

The ALECS includes a stationary emissions treatment unit that is connected to diesel locomotives with flexible ducts and a hood designed to fit over and attach to the exhaust stacks.

Diesel-related emissions are then captured and treated rather than being released into the air. The system will be used on locomotives that are idling or undergoing engine load tests, and will allow for some train movement so that there is minimal disruption to maintenance and testing operations.

The demonstration system is sized to handle 12,000 scfm of exhaust



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