Rohrdorfer Zement has fired up a pilot clay tempering unit at its Rohrdorf cement plant in Bavaria. The pilot partly uses waste heat from the plant’s clinker line. The project commands Euro8.65m in funding from the Federal Ministry for Economic Affairs and Climate Action and the EU under the NextGenerationEU economic recovery package.
If successful, the pilot will lead to the introduction of tempered clay into the Rohrdorf plant’s cement, via an on-site full-scale tempering unit. This would reduce the plant’s CO2 emissions by 16 – 18%, or by 30% if Rohrdorfer Zement succeeds in achieving CO2-neutral clay tempering through the use of green hydrogen.
Rohrdorf Net Zero Emission project leader Helmut Leibinger said “As a cement component, tempered clays make a significant contribution to CO2 mitigation. With the pilot project of process-integrated tempered clay, we are taking not just a step in our decarbonisation roadmap, but a leap.”
