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PyroGenesis wins US$871,000 contract for European cement plant

05 September 2025

Europe: PyroGenesis has signed a US$871,000 contract with a European cement industry customer to supply a plasma torch system for a calciner. The client’s name has not been disclosed for competitive and confidentiality reasons. The system will replace fossil fuel-based heating with plasma technology to provide a ‘cleaner, more efficient’ method for high-temperature calcination, according to the company. Delivery is scheduled for the first quarter of 2026.

Published in Global Cement News
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Heidelberg Materials conducts successful tests using plasma-heated kiln at Slite plant

18 February 2025

Sweden: Heidelberg Materials has successfully operated a 300kW plasma-heated cement kiln at its Slite cement plant, which it claims is the first of its kind. The producer has achieved 54 hours of continuous operation, with 60% CO₂ concentration in the flue gas. The aim is to reach 99%.

The kiln is part of the ELECTRA project, which aims to replace traditional combustion processes with electricity-based solutions, like plasma. The project consists of 17 partners from 8 countries.

Project manager Bodil Wilhelmsson said "It looks very promising. We started the tests at the end of last year and can now say with certainty that this is the right way to go: we will be able to produce clinker with plasma."

Fuel-related CO₂ emissions from cement production are eliminated because no fuel needs to be used in the production process. Instead, CO₂ is heated to over 5000°C, where it becomes a plasma jet that heats the material in the kiln.

Wilhelmsson added "The absence of fuel in the process means that there is no ash in the product. This means that a parameter that could affect the quality of the product if it fluctuates is no longer considered. So, it looks like the quality of the clinker can actually be slightly higher in this process."

Heidelberg Materials plans to build a 1MW kiln in Skövde cement plant in 2026, where further tests will continue.

Published in Global Cement News
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