Utilizing waste heat, advancing climate neutrality

The Basic Isocyanate Leverkusen (BIL) plant, like all Covestro plants in Leverkusen, is certified according to ISO 5001 for its energy management system. In addition, here, Covestro is transforming what was once wasted reaction heat into a valuable resource. This allows both emissions and a lot of primary energy to be saved. This is made possible by using a special reactor. It uses the reaction heat generated during production from the BIL plant for steam generation. The generated steam is then used as an energy source in further production processes.

Waste heat becomes a steam source

The HPG technology generates over 20,000 tons of steam annually from waste heat – saving over 16 gigawatt hours of primary energy and 4,300 tons of CO2. An investment of around seven million euros has made this project possible – and thus made an important contribution to energy efficiency and CO2 reduction.

Resource-efficient production of durable products

Using the energy and resource-saving HPG technology, the BIL plant here in Leverkusen produces, among other things, precursors for the coating raw material Desmodur N. Coatings based on this protect many products we rely on daily – these include, for example, cars, wooden furniture, food packaging, but also ships and bridges. The coating ensures greater weather resistance, UV stability, and corrosion resistance – and thus also contributes to sustainable use.

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