Exhaust After Treatment System for Larger Diesel Engines

The Vinci Environment Awards Grand Prize was awarded to a joint entry between Bachy Soletanche and Cybrand for the development, implementation and independent approval of an exhaust after treatment system for larger diesel engines fitted into their construction machinery (above 300kW).

This solution features a retrofitted diesel particulate filter and selective catalytic reduction system, which significantly reduces the engine emissions. Diesel engines of this kind produce pollutants that damage our health, environment and ultimately, our climate. Replacing older machines with new equipment requires huge time and investment so the team wanted to find a way of extending the life in the UK of some of their older equipment by reducing the pollutants from their diesel engines.

Working with the supply chain, the team identified that retrofitting the diesel particulate filter and the selected catalytic reduction system would reduce pollutants and allow the machines to achieve a higher level of emissions compliance taking the original engine from meeting Stage IIIA requirements to achieving most up to date Stage V.

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