Displaying items by tag: Sweden

There have been a few burner and related stories to note in the cement industry news this week. Firstly, Canada-based PyroGenesis announced that it had signed a deal with an unnamed-European cement company to supply a plasma torch system for a ‘calcination furnace.’ Around the same time UBE Mitsubishi Cement (MUCC) revealed that it had successfully tested natural gas co-firing at MUCC’s Kyushu Plant using a newly developed burner.

The PyroGenesis project is a potential game-changer for the sector because it alters the way cement production lines are heated. Roughly one third of CO₂ emissions associated with cement manufacture arise from the fossil fuels used to heat the kiln and the pre-calcination system. Cut out some of that and the specific CO₂ emissions of cement production drop. PyroGenesis’ approach uses electricity to generate high-temperature plasma. This then gives the cement plant the option of obtaining its electricity from renewable sources. PyroGenesis signed a memorandum of understanding with the power conversion division of GE Vernova in March 2025. This had the aim of targeting high temperature processes, such as cement production, with electric plasma torches. The current deal with a cement producer has been valued at US$871,000 with delivery to the client scheduled for the first quarter of 2026.

We don’t know who the mystery client might be. However, Heidelberg Materials reportedly operated a 300kW plasma-heated cement kiln at its Slite cement plant in February 2025 as part of the ELECTRA project. The producer said it had achieved 54 hours of continuous operation, with 60% CO₂ concentration in the flue gas. The aim was to reach 99%. It then said that it was planning to build a larger 1MWel furnace at its Skövde cement plant in 2026 with tests to continue in 2027. In an interview with Global Cement Magazine in May 2025, Heidelberg Materials said that it was using commercially supplied CO₂ as the ionising gas in the plasma generator but that it was considering using captured CO₂ from the production process in the future. It also mentioned issues from its trials such as the effective ‘flame’ being hotter than the conventional process but not as long. This increased the reactivity of the resulting clinker. Finally, Heidelberg Materials noted from a feasibility study that a 1Mt/yr cement plant would need around 170MW of plasma generation, but that typical plasma generators topped out at around 8MW. Hence, any full set-up would likely require multiple plasma generators. For more on non-combustion style kilns see GCW561.

UBE Mitsubishi Cement’s burner installation is more conventional but again it is concerned about sustainability. In this case the line has tested burning natural gas. The cement producer says it is the first such installation at a cement plant in Japan to do so commercially. The burner was jointly developed by UBE Mitsubishi Cement, Osaka Gas and Daigas Energy. Firstly, the plant will consider switching to natural gas. This will reduce the unit’s CO₂ emissions from fuel combustion. However, a later step being considered is to move on to e-methane. This is a synthetic methane made from CO₂ and hydrogen using renewable energy.

Finally, another recent story on this theme is the installation of a new satellite burner by Northern Ireland-based Mannok at its Derrylin cement plant in August 2025. This is Phase One of a two-part project to upgrade the pyro kiln system at the site. The cement company worked with FLSmidth on the €2.5m upgrade. The new burner has now allowed the plant to burn solid recovered fuel (SRF) by up to a 30% substitution rate in the kiln. This followed a project, also with FLSmidth, to install a FuelFlex Pyrolyzer in 2022. This is used to replace coal with SRF in the pre-calcination stage of cement production. Phase two will be an upgrade of the main burner to a new Jetflex burner. Once this part is completed, Mannok is aiming for an overall substitution rate of 65 - 70% on the whole pyro-processing system.

Burners at cement plants are replaced fairly commonly. However, the supplier companies don’t advertise every installation due to the commercial relationships with their clients and other factors. Hence the more interesting upgrades tend to get the publicity. Typically this means if a burner uses new technology, meets sustainability goals and so on, we find out about it. It’s a similar situation when a new heating technology such as plasma is trialled. Changing trends in fuel types for cement plants suggest different types of conventional burners. Some of this can be seen in the burner stories above with the trend moving towards ever higher rates of alternative fuels usage. Combustion in cement kilns is here to stay for the time being but plasma trials will be watched carefully.

The 18th Global CemFuels Conference & Exhibition on alternative fuels for cement and lime 2025 will take place in Milan on 17 - 18 September 2025

It’s been a busy period at FLSmidth in Denmark with the announced sale of its Air Pollution Control business this week. This has followed the divestment of its cement business and its headquarters in Valby in late June 2025.

The Denmark-based company has moved towards mining over the last decade. In the mid-2010s, revenue from its cement business was higher than its mining division. This started to change in 2017 when it acquired part of Sandvik Mining Systems. The purchase of ThyssenKrupp Industrial Solutions’ mining business followed in 2021. The focus on mining then became more overt with the announcement of so-called “pure play strategies” for its mining and cement divisions in 2023. The public decision to sell the cement business came in early 2024. That year the cement division contributed about one fifth of group order intake, revenue and earnings. For more on the background to the decision to divest read Global Cement Weekly’s commentary in January 2024.

US-based private equity company Pacific Avenue Capital Partners was revealed as the buyer for the cement division on 20 June 2025. The value of the deal was presented as a total initial consideration of €75m and a further conditional deferred cash consideration of up to €75m. This latter payment appears to be based on undisclosed criteria. The cement division reported revenue of €596m and adjusted earnings before interest, taxation, depreciation and amortisation (EBITDA) of €54m in 2024. The divestment is expected to close in the second half of 2025 subject to the regulatory approval and so on.

However, other sales connected to FLSmidth’s cement business have also been occurring. A deal to sell its Non-Core Activities segment to KOCH Solutions was announced in June 2023. This includes a mixture of intellectual property for port and terminal equipment, stockyard systems and pipe conveyors. It also covers order backlog, employees and facilities. No purchase price has been revealed. Completion was originally planned for the end of 2024 but it has been put back to the end of 2025. In July 2023 the sale of its Advanced Filtration Technologies (AFT) filter media business to Micronics was declared. No price for the divestment was disclosed but a net gain of around €13m was reported in the company’s annual report.

Jump forward to 2024 and the divestment of MAAG gears and drives was swiftly announced and then completed in the first quarter to Sweden-based investment company Solix Group. As before no price was publicised but a net gain of around €3.75m was reported. Now, in 2025, the group signed a deal to sell its headquarters at Valby in Denmark for around €98m. The company has been based in the town since 1899 and the building in question at Vigerslev Allé was inaugurated in 1956. The company is planning to move to a new headquarters in Copenhagen later in 2025. This week the sale of its Air Pollution Control business to UK-based investors Rubicon Partners has been announced. It said that since 2020 the company has gradually been divesting businesses related to air pollution control. This latest sale is the last part of that process.

So that appears to be it for FLSmidth’s involvement in the cement sector beyond the quarry gates. The divestments have occurred in a piecemeal fashion rather than one single outright transaction. The Non-Core Activities and Advanced Filtration Technologies (AFT) segments are being sold to manufacturers. By contrast MAAG gears and drives, the Air Pollution Control business and the remainder of the cement business are being sold to investment companies. We’ll have to wait a few years to work out the implications of all of this.

Sweden: SaltX has announced a partnership with Holcim to develop technology and solutions that electrify and enable the decarbonisation of the entire cement manufacturing process. As part of the partnership, Holcim is becoming a strategic shareholder in SaltX through an investment of approximately US$4m. 

The companies intend to co-develop and advance SaltX’s electrification technology for calcination, including the production of Portland cement clinker. The goal is to be the first in the world to establish a scalable plant concept for fully electrified cement facilities. The parties’ intention is for the partnership to be extensive, featuring a collaborative go-to-market and scale-up plan. The initial focus is on developing the world’s first all-electric pilot plant for emission-free cement production. This will set the foundation to establish multiple large-scale production facilities based on SaltX’s electrification technology.  

Sweden: Cemvision has developed a patent-pending beneficiation process to upcycle electric arc furnace (EAF) and basic oxygen furnace (BOF) slags into high-performance supplementary cementitious material (SCM), while recovering valuable metals.

Third-party testing found the material performs as well as or better than ground granulated blast-furnace slag (GGBS). Cemvision recovers 99% of the iron oxide content from EAF slag for reuse in steelmaking, as well as other metals like chromium.

The output will support Cemvision’s Re-Ment Massive and Rapid products as clinker-replacing SCMs. The process was piloted with metallurgical research institute Swerim.

Cemvision CEO Oscar Hållén said “This is a game-changer not only for the cement industry but for steel producers as well. Our process enables high-performing cement products from materials that would otherwise be treated as waste. With this innovation, we're proving that decarbonisation and circularity can go hand in hand, and at scale.”

Sweden: Alcemy has appointed Alejandro Espejel Garcia as its Head of Sales - Cement Business Line. He previously worked as a Business Development Manager for the Germany-based artificial intelligence software company.

Espejel Garcia worked for Denmark-based FLSmidth from 2012 to 2024. He started as a Senior Reliability Specialist for the equipment supplier notably becoming Country Manager and Head of Mining Sales - Mexico in 2018 and Managing Director for FLSmidth Panama at around the same time. He subsequently was appointed as Vice President - Head of Group Digital’s Smart Service in 2021 and Vice President - Head of ERP Transformation in 2023. Before working for FLSmidth he held various roles with Cemex from 2004 to 2011 ending his tenure as a Regional Technical Manager in Mexico. He holds an undergraduate degree in mechanical engineering from the Instituto Tecnológico y de Estudios Superiores de Monterrey and a master’s of business administration qualification from the Copenhagen Business School .

Sweden: A court has granted Heidelberg Materials a 30-year licence to continue limestone mining at its Slite quarry on the island of Gotland, securing the future of the plant that produces 75% of Sweden’s cement. The court ruling replaces a 2022 four-year concession and follows a 2021 rejection of a long-term extension that had threatened cement rationing and job losses, according to Reuters.

Heidelberg Materials deputy CEO Karin Comstedt Webb said “The permit ensures a robust supply of cement to Sweden's construction sector for many years.”

Sweden: Cemvision and S:t Eriks have entered into a partnership agreement as a result of several pilot projects using Cemvision’s cement in S:t Eriks’ production. The partners have signed a letter of intent to develop and implement sustainable concrete solutions within water and sewage infrastructure. Having already tested Cemvision’s cement in its own production, S:t Eriks will then implement the cement in commercial projects. The product reportedly offers high resistance to sulphate and acid attacks, which contribute to longer service life.

In the coming months, Cemvision and S:t Eriks will continue testing to explore the potential for broader implementation of the cement in water and sewage systems.

Sweden: Skanska and Cemvision will enter into a partnership, which will combine Skanska’s experience in low-carbon construction solutions and Cemvision’s circular cement technologies. The collaboration will begin in spring 2025 and will see Skanska scale up a new generation of cement with up to 95% lower climate impact compared to traditional Portland cement.

The signed letter of intent marks the first step towards a future off-take agreement, in which Skanska will secure access to Cemvision’s cement for implementation across its projects. The company is planning its first pilot projects for the near future.

Sweden: Swedish cement manufacturer Cemvision has entered a strategic partnership with Norway-based residential developer JM to develop ‘climate-friendly’ cement and concrete. As part of the agreement, JM has also acquired a minority stake in Cemvision.

Cemvision’s cement reportedly reduces CO₂ emissions by up to 95% compared to traditional cement, through the use of recycled industrial waste from mining and steel industries, combined with renewable energy in its kiln operations.

Europe: Sweden-based SaltX has signed a letter of intent with German engineering firm thyssenkrupp Polysius to collaborate on establishing 100% electric cement production facilities in Europe. The facilities will combine SaltX’s electric arc calciner (EAC) technology with thyssenkrupp Polysius’ material handling solutions.

CEO of SaltX Lina Jorheden said "Strong partnerships are essential for us to effectively implement our technology and reduce millions of tonnes of CO₂ emissions from the industrial sector. Our collaboration with thyssenkrupp Polysius is crucial for developing complementary systems to the EAC technology and building electrified facilities for our customers."