The project adopts the ZEQL (Zero Emission Quicklime) concept, developed by SaltX Technology AB, a Swedish innovation company based in Hägersten. This process electrifies the traditional lime calcination method, which typically relies on fossil fuels, enabling the production of quicklime without releasing CO₂. Thyssenkrupp Polysius will support the industrial scaling of this technology by delivering the kiln system and providing engineering expertise.
Christian Myland, CEO of thyssenkrupp Polysius, stated: “We are proud to contribute to this landmark project that sets a new standard for sustainable lime production. Our collaboration with SMA Mineral and SaltX Technology demonstrates how industrial partnerships can accelerate the transition to net-zero emissions. This project is a testament to our commitment to engineering solutions that drive decarbonization.”
The plant will have an annual capacity of 40,000 tons of ZEQL quicklime. It has received EUR 24 million (approximately NOK 287 million) in funding from Enova, a Norwegian state enterprise supporting sustainable energy projects.
SMA Mineral, one of the leading lime producers in the Nordic region, operates in Sweden, Norway, Finland, and Estonia. With more than 90 years of experience, the company supplies lime products to industries including steel, construction, pulp and paper, agriculture, and water treatment. Through this investment in the ZEQL plant, SMA Mineral aims to lead in low-emission lime production by shifting away from fossil fuels and reducing the environmental impact of a widely used industrial material.
The collaboration between SaltX Technology and thyssenkrupp Polysius is a key component of the ZEQL initiative. A Letter of Intent was signed in February 2025, confirming the companies’ plans to work together on developing and implementing electrified processes at an industrial scale. This partnership supports innovation in sustainable technologies and represents a significant advance in efforts to decarbonize both the lime and cement sectors.
The Mo i Rana pilot plant is expected to serve as a model for future zero-emission lime production facilities worldwide, demonstrating the feasibility of fully electric systems in heavy industry and reinforcing the importance of cross-industry cooperation in achieving climate goals.
