thyssenkrupp Polysius to Supply Electric Kiln for Zero-Emission Lime Plant

Project Overview

thyssenkrupp Polysius will supply the kiln system for SMA Mineral's quicklime plant in Norway, designed to operate without CO2 emissions. This initiative is based on SaltX's electric calcination technology, marking a global first in lime production decarbonization.

Technology and Collaboration

The ZEQL (Zero Emission Quicklime) concept, developed by SaltX Technology, electrifies the lime calcination process, traditionally reliant on fossil fuels. thyssenkrupp Polysius will scale this technology to an industrial level, leveraging its engineering expertise.

Timeline and Funding

The pilot plant is scheduled for completion in 2027, with an annual production capacity of 40,000 tons of ZEQL quicklime. The project has secured EUR 24 million in funding from the Norwegian state enterprise Enova.

Industry Impact

SMA Mineral, a major lime producer in the Nordic region, operates in Sweden, Norway, Finland, and Estonia. By investing in the ZEQL pilot plant, SMA Mineral aims to lead the transition to sustainable lime production, reducing the carbon footprint of this essential raw material.

Partnership and Goals

The collaboration between SaltX Technology and thyssenkrupp Polysius forms the foundation of the ZEQL project. Following a Letter of Intent signed in February 2025, both companies are working to scale up electrified industrial processes, advancing decarbonization in the cement and lime industries.