Reducing CO2 emissions is central to our sustainability journey.
Lime production generates CO2 from two sources: fuel combustion and the chemical reaction that occurs when limestone is transformed into lime. Around one third of our emissions come from burning fuel, while two thirds are inherent to the chemical process itself. We can reduce combustion emissions by upgrading our kilns, improving efficiency, and increasing the use of lower‑carbon fuels such as biomass. Renewable electricity also offers important future potential. Process emissions are intrinsic to lime production and occur naturally when limestone is transformed into lime. Addressing them will require Carbon Capture, Use, Transport and Storage (CCUTS) technologies.
Across Lhoist, we continuously develop and implement solutions to reduce our CO2 footprint as we transition toward a low‑carbon production model.
Our immediate focus is on combustion emissions, where tangible progress can be achieved today. We modernize our kilns to boost efficiency and enable the use of more diverse fuel options. By improving fuel flexibility, energy performance, and prioritizing lower‑carbon alternatives, we steadily reduce our fuel‑related footprint. This flexibility allows us to incorporate more sustainable biomass and alternative fuels, lowering CO2 emissions and reducing the overall carbon intensity of our operations.