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Thyssenkrupp : Catch4Climate Pure Oxyfuel plant officially inaugurated – a milestone for low-carbon cement
Thyssenkrupp : Catch4Climate Pure Oxyfuel plant officially inaugurated – a milestone for low-carbon
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09.07.2026 07:00 Catch4Climate Pure Oxyfuel plant officially inaugurated - a milestone for low-carbon cement Catch4Climate pioneering plant officially inaugurated in Mergelstetten, Germany World's first industrial-scale demonstration of thyssenkrupp Polysius' Pure Oxyfuel technology for cement production Groundbreaking technology enables capture of up to 95% of CO₂ emissions from the clinker production process thyssenkrupp Calvion takes over for further development, scale-up and commercialization Project marks a major milestone toward decarbonizing one of the world's most carbon-intensive industries The CI4C (Cement Innovation for Climate) Pure Oxyfuel plant in Mergelstetten (state of Baden-Württemberg) has been officially inaugurated, marking a major milestone in the decarbonization of cement production. The pioneering facility was realized under the lead of thyssenkrupp Polysius, together with thyssenkrupp Calvion, in close collaboration with the CI4C consortium (Buzzi SpA - Dyckerhoff GmbH, Heidelberg Materials AG, SCHWENK Zement GmbH & Co. KG and Vicat S.A) and additional project partners. As part of the "catch4climate" initiative, the plant represents a semi-industrial-scale demonstration facility for carbon capture technologies in cement production. With an investment of more than €120 million and a dedicated kiln line with a capacity of around 450 tonnes of clinker per day, the installation provides an important platform for research, validation, and further development. At the core of the plant is the Pure Oxyfuel process from thyssenkrupp Calvion. "For the first time, Pure Oxyfuel is being demonstrated at industrial scale in a cement plant. This achievement reflects the dedication, expertise and pioneering spirit of everyone involved in the project. At thyssenkrupp Polysius, we are proud to have translated a bold vision into operational reality and to contribute a technology that can help transform one of the world's most challenging industries to decarbonize," said Christian Myland, CEO of thyssenkrupp Polysius. By replacing ambient air with pure oxygen in the clinker burning process, the technology significantly increases the CO₂ concentration in the exhaust gas, creating the conditions for capturing nearly 95% CO₂ emissions from cement production - including unavoidable process emissions from limestone calcination. thyssenkrupp Polysius le...