Displaying items by tag: HeidelbergCement

Egypt: Korra Energi has been awarded a contract to build a 20MW waste heat recovery (WHR) unit at Suez Cement’s Helwan plant. The WHR unit will serve both of the plant’s two production lines. Korra Energi says it will be the first WHR project for a cement company in the country. Korra Energi is an Egypt-based engineering company and a subsidiary of conglomerate Korra.

Germany: HeidelbergCement has joined EPEA’s Heidelberg Circular City Building Material Registry pilot project. The initiative uses EMEA’s Urban Mining Screening digital registry, which is able to estimate the composition of buildings based on building data. HeidelbergCement says that it will enable it to source construction and demolition waste for circular economic use in building materials production. This will support its ReConcrete 360° recycled concrete CO₂ reincorporation project, among other projects. The initiative will turn Heidelberg into Europe’s first Circular City.

“Full circular economy and sustainable construction are central elements of our climate strategy,” said HeidelbergCement chair Dominik von Achten. “We are focusing on the life cycle assessment of our product concrete, including the processing of demolished concrete, and returning it to the construction cycle. By 2030, we want to offer circular alternatives for half of our concrete products.” Von Achten concluded “Together with the city of Heidelberg, also a pioneer in the area of climate protection, we want to use the Circular City project to demonstrate the enormous potential of concrete recycling for future urban construction.” 


Coolbrook has been in the news recently with collaboration deals struck with Cemex and UltraTech Cement. First the Finland-based company officially launched its Roto Dynamic Heater (RDH) technology with a memorandum of understanding signed with Cemex in May 2022. Then, this week, it signed a similar agreement with UltraTech Cement.

The specifics of either agreement are unknown but the target is clearly to build an industrial pilot of an electric kiln – or something like it - at a cement plant. Coolbrook says it has run a pilot of its RDH technology in Finland. Further tests are now scheduled to continue for two years starting from September 2022 at the Brightlands Chemelot Campus at Geleen in the Netherlands. Commercial scale demonstrations are scheduled from 2022 with the hope of commercial use from 2024. Links with Cemex and UltraTech Cement seem to suggest progress. At the same time Coolbrook will be testing its RotoDynamic Reactor (RDR) technology, which promises to electrify the steam cracking process used in plastic manufacturing.

Publically available details on the RDH technology are light. In its promotional material Coolbrook says that it can achieve process temperatures of up to around 1700°C. This is crucial to achieve full clinker formation in a cement kiln. Reaching this temperature with non-combustion style kilns, such as solar reactors, has previously been a problem. Notably, Synhelion and Cemex said in February 2022 that they had managed to produce clinker using concentrated solar radiation. Retrofit possibilities and compact equipment size are also mentioned in the promotional material for the RDH. The former is an obvious attraction but size of equipment footprint is increasingly emerging as a potential issue for cement plants looking to reduce their CO₂ emissions. Rick Bohan from the Portland Cement Association (PCA) presented a summary of the potential and problems of emerging carbon capture and utilisation/storage (CCUS) technologies for cement plants in the US at the Virtual Global CemCCUS Seminar that took place on 14 June 2022. He noted that installing CCUS equipment makes cement plants start to look different (more like petrochemical plants in the view of Global Cement Weekly) and that they may require more space to install it all.

Coolbrook hasn’t been the only organisation looking at kiln electrification. The installation with the most available information on kiln electrification has been the Decarbonate project, led by the VTT, formerly known as the Technical Research Centre of Finland. The project has built a pilot rotary kiln with a length of 8m inside a shipping container. It has a production capacity of around 25kg/hr. The system reportedly uses fixed radiant heating coils around the kiln, surrounded by insulation materials. Early results presented to the 1st Virtual Global CemPower Seminar in late 2021 were that the kiln started up, sufficient calcination was occurring and the system was operated continuously for three days at a temperature of 1000°C with no problems reported. Further research was scheduled to carry on into 2022 with longer trials planned for three different materials.

HeidelbergCement’s subsidiary in Sweden, Cementa, completed a feasibility study on implementing electrified cement production at its Slite plant in 2019. It then said that it was conducting further study with electricity producer Vattenfall as part of CemZero project. This consists of three projects running to 2025. Namely: heat transfer with plasma in rotary kilns; direct separation of carbon dioxide from calcination of carbonate-based raw materials in the production of cement clinker and burnt lime; and carbon dioxide-free products with electrified production - reactivity of cement clinker with secondary additives. HeidelbergCement has since announced plans to build a full scale 1.8Mt/yr carbon capture and storage (CCS) plant at the Slite cement plant by 2030.

How this would fit with any kiln electrification plans is unknown. However, one attraction of moving to an electrical kiln, for all of the projects above, is to cut out the 40 – 50% of a cement plant’s CO₂ emissions that arise from the fuel that is burnt. Taking a kiln electric also makes CO₂ capture easier. Much of the remainder of the CO₂ released comes from the decomposition of limestone during calcination when clinker is created. Substitute out fossil or alternative fuels and the flue gas becomes much purer CO₂.

It is early days for cement kiln electrification but progress is happening both commercially and scientifically. The next step to watch out for will be the first pilot installation at a cement plant. One point to finish with is a comment that Rick Bohan made at the IEEE-IAS/PCA Cement Industry Technical Conference that took place in May 2022: carbon capture is expected to double a cement plant’s energy consumption. Kiln electrification is one potential route for cement production to reach net zero. CCUS is another. If one or both occur then a low carbon future could be a high energy one also.

Watch out for Global Cement’s forthcoming interview with Coolbrook in the September 2022 issue of Global Cement Magazine

For more on CCUS, download the proceedings pack for the Virtual Global CemCCUS Seminar 2022

For more on Synhelion and Cemex read the interview in the December 2020 issue of Global Cement Magazine interview

Belgium/France: Ciments Calcia plans to transition 60% of its truck transport of cement in Belgium and France to rail. The company says that the shift will eliminate 5% of its CO₂ emissions. 400 rail cars currently distribute cement from Ciments Calcia’s 10 production sites. The producer said that the planned increase became possible due to logistics solutions developer Everysens’ transport digitisation software.

Germany: ThyssenKrupp Industrial Solutions’ Polysius division says that it has been commissioned by Buzzi Unicem, HeidelbergCement, Schwenk Zement and Vicat to build a pure oxyfuel kiln system at the Mergelstetten cement plant as part of the Cement Innovation for Climate (CI4C) project. No dates of the start of construction or final project commissioning of the industrial trial have been disclosed. CI4C was originally formed in 2019.

The Polysius pure oxyfuel process is a new type of clinker production process in which the otherwise normal ambient air is replaced by pure oxygen in the kiln combustion process. One advantage of the technology is that atmospheric nitrogen is eliminated from the clinker burning process leading to much higher concentrations of CO₂ in the exhaust gas compared to a conventional kiln. As such the process aims to concentrate, capture and reuse almost 100% of the CO₂ produced in a cost-effective manner. The medium-term goal is to further process the captured CO₂ with the help of renewable energy into products such as kerosene for air traffic.

France: Logistics software provider Everysens says that its Transport & Visibility Management System (TVMS) product has helped Ciments Calcia to improve its use of railway transportation. Philippe Labbé, the logistics director for the subsidiary of Germany-based Heidelberg Cement, said that the company had been using the software for three years. During which time it increased its productivity and saved time on the operational management of rail logistics. Labbé added that he thought the product would help the company meet its decarbonisation commitments by switching more trucks to rail.

Ciments Calcia originally chose Everysens to digitise of use of railway transport, to bring all the relevant data on to one platform and to improve its management of it. The building materials manufacturer sells around 5.3Mt/yr of cement and it operates 10 production sites. It uses over 400 railway wagons in France and Belgium.

Sweden: HeidelbergCement says that it will establish a 1.8Mt/yr carbon capture and storage (CCS) plant at its Slite cement plant in Gotland. It aims to achieve full-scale capture of the plant’s CO₂ emissions by 2030. In conjunction with the CCS plant project, Cementa will increase the share of biomass in the Slite plant’s fuel mix.

Chair Dominik von Achten said “Just a few days ago, we published new sustainability targets, underlining the importance of carbon capture, utilisation and storage (CCUS) as one key lever to almost halve our CO₂ footprint by 2030 compared to 1990, and achieve Net Zero by 2050 at the latest.” He continued “Slite CCS is the largest CCUS project yet in our group and the cement industry, and a model for what will be achievable with CCUS also beyond 2030. As this initiative contributes considerably to the climate ambitions of Sweden, and is a unique project for us in terms of scale, we are keen to make it happen.”

UK: Hanson plans to install a C-Capture solvent-based carbon capture system at its Ketton cement plant in Rutland. The producer says that the technology reduces energy requirements per tonne of CO₂ by 40% compared to other capture systems.

Chief executive officer Simon Wills said “Carbon capture is a critical part of our strategy to decarbonise cement production, and essential if we are to reach net zero carbon by 2050. If successful, the C-Capture process has the potential to be rolled-out across other sites across the HeidelbergCement Group.”

Germany: HeidelbergCement has replaced its existing revolving credit line with a new syndicated credit line based on the Loan Market Association’s sustainability-linked loan principles (SLLP). HeidelbergCement says that key performance indicators of its progress towards sustainability objectives will determine the credit line’s credit margin, adjusted according to its CO₂ emissions per tonne of cementitious material and alternative fuel (AF) substitution rate. HeidelbergCement says that its ‘solid financial base’ enabled it to reduce the syndicated credit line to US$2bn from US$3bn, and to avoid financial covenants.

Chief financial officer René Aldach said “With the conclusion of the new syndicated credit line, we have taken the first step towards sustainable financing. In addition, we were able to improve the terms and conditions compared with the previous credit line.”

More mergers and acquisition news emerged this week in the shape of potential buyers for Sika’s US admixtures business. Reporting from Bloomberg revealed that Holcim, HeidelbergCement and Turkey-based Sabancı Holding had all made it, amongst other unnamed companies, to a second round of bidding for the assets. Sika then confirmed this to the Finanz und Wirtschaft newspaper and added that the sale would also relate to Canadian assets as well. The intention here is to bypass the risk of a lengthy competition investigation in the US.

Switzerland-based Sika announced in November 2021 that it had signed a deal to buy MBCC Group from Lone Star Funds, a global private equity firm, for Euro5.2bn. At the time of the announcement Sika said that the transaction was subject to regulatory approval but it added that it was ‘confident’ that all required clearances would be obtained with closure planned for the second half of 2022. Known competition probes are now pending in the UK, Australia and New Zealand. A previous piece from Bloomberg suggested that internal analysis by Sika found that the company might need to divest operations with annual sales of around US$160m with a value of US$400m. However, the latest update suggests a value of up to US$1bn. The US represented US$1.71bn or 18% of Sika’s total group sales in 2021. Sika’s information to shareholders to let them know about the MBCC acquisition in November 2021, showed that MBCC had sales of around US$966m in the Americas in 2021 with 36 production plants. Overall, not just in the US, the deal is expected to change Sika’s technology mix from 40% concrete and cement systems to 49%, with most of the additions coming from concrete applications.

Divestments were always likely in an acquisition this large between competitors with shared geographies. What is interesting here to the cement sector is that the three named interested parties are all cement producers. Holcim is perhaps the least surprising given its size, pivot towards light building materials and the fact that its current head, Jan Jenisch, used to run Sika. If anyone knows how much an admixture company is worth, it’s the guy who ran one five years ago! HeidelbergCement does not have such a large light building materials business footprint but it is demonstrably interested in making heavy building material production more sustainable. Also, as the world’s second largest western multinational cement producer it is likely to be interested in an input market for some of its end products. Sabancı Holding is the outlier in this grouping with a more regional grey cement business based in Turkey, an international white cement business and a diverse set of business interests including finance and energy. Although, even as the smallest of the bunch, it still reported sales revenue of over US$9bn in 2021. One notable absence from the potential contenders list for Sika USA is Cemex. Its Urbanisation Solutions division, which produces admixtures among other products, reported sales of US$1.9bn in 2021 or 13% of the group’s total revenue. US$558m of this was made in the US.

The wider context in the North American admixture market is that the announcement of Sika’s deal with MBCC in November 2021 was followed about a month later when Saint-Gobain said it had entered into a deal to buy GCP Applied Technologies. This followed Saint-Gobain’s acquisition of Chryso in October 2021. However, Saint-Gobain said that the GCP deal would strengthen its position more in North America. Readers can find out more about Saint-Gobain’s ambitions here.

The final word at this stage should go on Lone Star Funds, the current owner of MBCC. Lone Star Funds bought the construction chemicals business from BASF for Euro3.17bn in September 2020. At the time the acquisition closed Saori Dubourg, a member of the board of executive directors of BASF, said “Lone Star has been a professional partner in this transaction and is committed to the future success of the business.” If the reporting is correct, Lone Star Funds is now selling the same business for over Euro5bn. There are two takeaways to consider at this point. One is that the perceived value of products that make cement and concrete more sustainable are growing. The other is that Lone Star Funds timed its acquisition of MBCC from BASF very well.