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The DuPont Nutrition & Health facility in Grindsted, Denmark, is set to become carbon dioxide (CO2) neutral next year once the plant’s large coal boiler is retrofitted to burn wood chips.

DuPont-Grindsted plant manager Martin K Madsen said: "To fire with wood chips instead of coal is a huge win for the environment.

"Not only will we remove 45,000t of carbon dioxide currently produced using non-renewable energy, but we will also increase the amount of ‘waste’ energy that we sell to the local district heating network."

A reduction in CO2 by 45,000t amounts to removing 20,000 average cars annually from the road.

The energy consumption at the emulsifier plant in Grindsted corresponds to heat consumption in a city that has a population of 10,000.

"To fire with wood chips instead of coal is a huge win for the environment."

Since 2011, DuPont has been providing excess heat to the local district heating network in Grindsted, catering to approximately 8% of the local energy consumption requirement.

The latest transition will benefit 3,600 district heating consumers.

DuPont plans to expand its delivery to cover roughly 50% of the heat consumption by harvesting the additional heat in the flue gas that is emitted from the wood chip boiler.

Danish Agency Energy will financially support DuPont in its sustainability energy measures at Grindsted with up to kr61m ($92m).


Image: DuPont Nutrition & Health facility in Grindsted, Denmark, will become CO2 neutral by next year. Photo: courtesy of DuPont Nutrition & Health.