Displaying items by tag: VICAT

US: National Cement Company of Alabama has reported that the new kiln line at its Ragland cement plant will reduce the plant’s CO₂ emissions by 40%. Its energy consumption will also fall by 30% as a result of the upgrade. The new line includes a 78m-high homogenisation silo, vertical crusher, five-stage preheater and automated clay storage system. AF used in the kiln will include waste tyres, woodchip and sawdust. The new kiln will help in the Ragland cement plant’s transition to 100% Portland limestone cement (PLC) production by 2023, further diminishing its carbon footprint.

Vicat CEO Guy Sidos said "Our ambition is to use AF in all our cement plants around the world. In addition to eliminating fossil fuel energy and replacing it with recycled regional waste, our investments contribute directly to local development. We are proud of the modernisation and transformation of our Ragland site, which was our very first acquisition outside France in 1974."

US: Vicat subsidiary National Cement Company of Alabama inaugurated its new US$300m production line at its Ragland cement plant on 21 July 2022. Local press has reported that the line includes a new rotary kiln, equipped for alternative fuel (AF) use.

President Spencer Weitman said “This puts us into the next 40 or 50 years. And it’s prolonged the life of the plant to move us forward into the next century hopefully.”

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: Vicat recorded first-quarter sales of Euro789m in 2022, up by 12% year-on-year from Euro707m in the first quarter of 2021. The group reported ‘solid’ year-on-year consolidated sales growth across all of its regions, with price rises offsetting negative volume effects. Cement sales grew by 7.4% in France, 4.1% in the rest of Europe, 18% in the US, 26% in Brazil and 8.5% in Africa. The Russian invasion of Ukraine did not manifest in any impacts on group activity in the quarter. Vicat estimates that in order to offset higher power costs it will need to raise its cement prices by 15% year-on-year in 2022 as a whole.

Group chair and chief executive officer Guy Sidos said “Vicat’s first-quarter sales performance reflects the dynamism of its markets, despite a high basis of comparison.” He continued “In a global environment providing little visibility in the short term, especially as regards energy costs, we are executing our strategy to improve our production performance, make greater use of secondary fuels and implement a pricing policy tailored to this new environment in pursuit of our operational, environmental and societal targets."

Denmark: FLSmidth has formed a partnership called ECoClay to develop and commercialise the technology needed to electrify the calcination of clay used in cement production. The partners include the Danish Technological Institute, US-based industrial heating specialist Rondo Energy, France-based Vicat, Colombia-based Cementos Argos and the Technical University of Denmark. The project is partly funded by the Energy Technology Development and Demonstration Program (EUDP) under the Danish Energy Agency.

The use of calcined clay in cement production allows cement producers to replace up to 30% of limestone-based clinker, resulting in up to 40% lower CO₂/t in cement produced. By electrifying the process, ideally powered by renewable sources, the ECoClay partnership expects to further reduce emissions by 10% at more uniform conditions that allow processing of a broader range of raw clays.

Based on the shared research and tests on high-temperature electric heat generation, storage solutions and renewable grid integration, the ECoClay partnership will build a pilot plant at FLSmidth’s research and development centre in Denmark. The consortium will seek to demonstrate how the ECoClay process is superior to the conventional combustion processes, has a smaller physical footprint on site and significantly lower emissions of air pollutants. According to the project plan, the ECoClay partners expect to be able to commence construction of the first full-scale electric clay calcination installation by the end of 2025.

India: Bharathi Cement plans to build a US$17m automated terminal and packaging plant at Coimbatore, Tamil Nadu. United News of India has reported that the facility will package the company’s bagged and bulk cement and supply the South West Tamil Nadu and Kerala markets.

On 23 April 2022, the subsidiary of France-based Vicat despatched its first rake of cement aboard custom-built tank and box container cars to Coimbatore from its Kadapa, Andhra Pradesh, cement plant. Vicat’s India CEO Anoop Kumar Saxena said that the first-of-its method of bulk cement transportation will reduce the company’s logistics costs and carbon emission and increase the service level for customers.

Vicat’s plans to buy another 42% stake in Sinai Cement became public this week. Once completed, the France-based company should own 98% of the Egyptian company, based on previously published ownership figures. The announcement heralds a rapprochement in the relationship between the cement producer and the Egyptian government.

Last year Vicat raised a case against the government with the International Centre for Settlement of Investment Disputes (ICSID) over an argument about how it could invest in Sinai Cement as a foreign company. All seems forgiven and forgotten now with a settlement agreement signed in March 2022 between Rania el Mashat, the Minister of International Cooperation on behalf of the Egyptian government, and Guy Sidos, the chairman and chief executive officer of Vicat Group. Local press reported that the government is trying to attract more direct foreign investment. Sinai Cement reported a loss attributable to its parent company of around US$19.1m in 2021, down from a loss of US$30.3m in 2020. However, its sales rose by 63% year-on-year to US$78m.

Sinai Cement has some specific operating issues related to its geographic position in the Sinai Peninsula and ongoing security concerns. Yet its mixed fortunes also sum up some of the continuing challenges the Egyptian cement industry is facing. After years of overcapacity, the government introduced reduced cement production quotas in July 2021 and this is mostly perceived to have improved prices in the second half of the year. Vicat described the arrangement as having capped the local market at 65% of its production capacity and it said that prices recovered ‘significantly’ as a result in the second half of 2021. Cemex’s regional chief Carlos Gonzalez told local press that the move had given plants “A glimmer of hope for the return of balance to the cement market.” The company has also announced a US$20m local investment backing up this view. Not all the foreign multinational companies entirely agreed, with HeidelbergCement reporting a ‘sharp’ decline in sales volumes although chief executive officer Dominik von Achten did describe the country as ‘coming back’ in an earnings call about his company’s financial results in 2021. Solomon Baumgartner Aviles, the chief executive officer of Lafarge Egypt, was also cooler about the production cap in a press interview in October 2021, describing it as too early to assess how well the cap was working and noting that the gap between supply and demand was still large.

Vicat said in its annual report for 2021 that, “Provided no further adverse geopolitical, health or security developments occur, the current climate is unlikely to jeopardise the prospects of an improvement in the subsidiary’s profitability, which should begin to gradually occur.” The geopolitical bit was timely given that Russia’s war in Ukraine started on 24 February 2022. It also targets the latest problem hitting Egyptian cement producers: energy costs. The head of Arabian Cement told Enterprise Press that initially some producers had opted to temporarily stop production and use stocks instead to attempt to try and wait until the energy price volatility ended. However, it stayed high so the cost of cement has gone up generally. Producers are now trying to switch to using a high ratio of natural gas, such as 10%, but this is dependent on the government letting them.

The Egyptian government, for its part, is facing a decision whether to supply subsidised gas for domestic industry or to export to Europe. The backstory here is that Egyptian cement producers are facing yet another step change in fuel supply. In the mid-2010s lots of plants switched from heavy fuel oil and gas to coal. High international coal prices could be heralding another change.

Alongside this the value of Egypt’s cement exports rose by 151% year-on-year to US$456m in 2021 from US$182m in 2020. The Cement Division of the Federation of Egyptian Industries has attributed this to growth mainly on the African market. This trend continued in January and February 2022 with cement exports up by 141% year-on-year to US$104m from US$43m. The main destinations were Ghana, Cameroon, Ivory Coast and Libya.

HeidelbergCement summed up the current state of the Egyptian cement market in its 2021 annual report as follows “The development of the Egyptian cement market continues to be determined by government intervention.” What happens next is very much in the hands of the state as it decides whether to extend the production cap, which fuels to subsidise, whether to allow exports and where to invest in infrastructure projects. One variation on this theme may be local decarbonisation targets. At the end of March 2022 the Global Cement and Concrete Association (GCCA) launched a series of Net Zero Accelerator initiatives, including one in Egypt. How a country that produces more cement than it needs reduces its CO₂ emissions presents another challenge for manufacturers and the government to grapple with.

US: Switzerland-based Elex has completed a cold start-up of an electrostatic precipitator (ESP) it has supplied to National Cement’s Ragland plant in Alabama. The ESP will be used for primary dedusting and it has a separation area of approximately 7000m². The cement plant, owned by France-based Vicat, is currently building a new 5000t/day production line that is due to be commissioned in mid-2022.

France/Egypt: France-based Vicat has issued a mandatory tender offer to buy an additional 42% stake in Sinai Cement. The proposal follows a final settlement agreement signed between Vicat and the Egyptian government in late March 2021, according to the Daily News Egypt newspaper. Following the completion of the transaction Vicat should own a 98% in the Egypt-based cement producer based on its reported ownership at the end of 2021.

In 2021 Vicat raised a case against the Egyptian government with the International Centre for Settlement of Investment Disputes. Media reports at the time alleged that the cement producer was being forced to reduce its shares in its subsidiary Sinai Cement due to a law stopping foreign ownership of companies operating in the Sinai Peninsula on the basis of security grounds. Around the same time Vicat also announced publicly that it was keen to continue operating in the country.

From the Nordics to the Mediterranean, European countries lead the field in reduced-clinker cement production using supplementary cementitious materials (SCMs). While consumers, faced with ever-greater choice, continue to opt for sustainability, projects to improve existing SCMs and develop new ones have won government backing and have become a matter of serious investment for other heavy industries beside cement. European cement producers’ decisions are steering the course to a world beyond CEM I. Yet, even in Europe, great untapped potential remains.

Companies generated a good deal of marketing buzz around their latest reduced-CO₂ cement ranges in 2021 and the first quarter of 2022: Buzzi Unicem’s CGreen in Germany and Italy, Holcim’s EcoPlanet in six markets from Romania to Spain, Cementir Holding’s Futurecem in Denmark and Benelux, and Cemex’s Vertua in Spain and several other countries. All boast reduced clinker factors through the use of alternative raw materials. This, however, is really a rebranding of a long-established norm in Europe.

Since 2010, cements other than CEM I have constituted over 75% of average annual cement deliveries across Cembureau member countries (all cement-producing EU member states, plus Norway, Serbia, Switzerland, Turkey, the UK and Ukraine). This statistic breaks down differently from country to country. CEM II is the norm in Austria, Finland, Portugal and Switzerland, with deliveries in the region of 90%. Portland limestone cement (PLC) makes up a majority of deliveries in all four. It has been central to Switzerland’s transition to 89% (3.72Mt) of CEM II deliveries out of a total 4.18Mt of cement despatched in 2021. There, the main types of cement were CEM II/B-M (T-LL) Portland composite cement, with 1.38Mt (33%), and two different classifications of PLC: CEM II/A-LL PLC, with 1.28Mt (31%), and CEM II/B-LL PLC, with 888,000t (21%).

A second approach is that of the Netherlands, where CEM III blast furnace slag cement with a clinker factor below 65% predominates, favoured for its sulphate resistance and the protection it offers against chloride-initiated corrosion of steel reinforcement in marine settings. By contrast, the UK has traditionally maintained a higher reliance on CEM I cement. This can be partly explained by the preference of builders there for adding fly ash or ground granulated blast furnace slag (GGBFS) at the mixing stage. Nonetheless, CEM II Portland fly ash cement held a 14% (1.43Mt) market share in the UK’s 10.2Mt of cement consumption in 2021.

The UK Mineral Products Association (MPA) has identified limestone as an underutilised resource in the country’s cement production. Together with HeidelbergCement subsidiary Hanson Cement, it has applied for a change to National Application standards to allow the production of Portland composite cement from fly ash and limestone or GGBFS and limestone. The association has forecast that Portland composite cement could easily rise to 30 – 40% of UK cement consumption, and that this has the potential to eliminate 8% of the sector’s 7.8Mt/yr-worth of CO₂ emissions.

Metallurgical waste streams have long flowed into European cement production, primarily as GGBFS, but also as bauxite residue. In 2021, alumina production in the EU alone generated 7Mt of bauxite residue, of which the bloc recycled just 100,000t (1.4%) that year. Two projects – the Holcim Innovation Center-led ReActiv project and Titan Cement and others’ REDMUD project – aim to produce new alternative cementitious materials from bauxite residue.

By collaborating with other industries, cement producers’ investments can most effectively reduce the overall cost of using these materials in cement production. In Germany, HeidelbergCement and ThyssenKrupp’s Save CO₂ project aims to develop new improved latent hydraulic binders or alternative pozzolan from GGBFS by producing slag from directly reduced iron (DRI). The Save CO₂ team believes that GGBFS substitution for clinker has the capacity to eliminite 200Mt/yr of CO₂ emissions from global cement production.

Meanwhile in the world of mining, ThyssenKrupp and others’ NEMO project is investigating the recovery of a useable mineral fraction for cement production from the extractive waste of the Luikonlahti and Sotkamo mines in Finland and the Tara mine in Ireland, through bioleaching and cleaned mineral residue upcycling. This may give cement producers full access to Europe’s 28Bnt stockpiles of sulphidic mining waste, of which mines generate an additional 600Mt each year.

Denmark-based CemGreen, which produces the calcined clay supplementary cementitious material CemShale, is developing a shale granule heat-treating technology called CemTower. This consists of three pieces of equipment vertically integrated into cement plants’ preheaters, kilns and coolers, and brings the processing of waste materials – here oil shale – to the cement plant.

Lastly, cement producers are exploring the possible uses of waste made of cement itself. In Wallonia, HeidelbergCement subsidiary CBR’s CosmoCem project is investigating the production of alternative cement additives from large available flows of local demolition, soil remediation and industrial waste. Similarly, the Greece-based C2inCO₂ project seeks to mineralise fines from concrete recycling for HeidelbergCement to use in the production of novel cements in its Greek operations.

In Switzerland, ZND Portland composite cement (produced using fine mixed granulate from building demolitions) is the third largest cement type, with 178,000t (4.3%) of total deliveries – narrowly behind CEM I with 239,000t (5.7%).Holcim Schweiz developed its Susteno 4 ZND Portland composite cement with Switzerland’s lack of any ash or slag supply in mind, demonstrating the potential flexibility of a circular economic approach to cement production.

On 21 March 2022, the University of Trier reported that it is in the process of mapping mineral resources, waste deposits and usable residues ‘on a cross-border scale,’ in an effort to produce new materials for use in cement production. Industry participants include France-based Vicat, CBR, Buzzi Unicem subsidiary Cimalux and CRH subsidiary Eqiom. Vicat is preparing a kiln at its 1Mt/yr Xeuilley cement plant in Meurthe-et-Moselle to use in testing new alternative raw materials developed under the project.

For Cembureau and its members, work continues, with the goal of Net Zero by 2050 constantly in sight. This goal includes a reduction in members’ clinker-to-cement ratios to well below 65%. In this, the association and its members are working towards a world not just beyond CEM I, but beyond CEM II, too. What exactly this will mean remains to be seen.

Sources

CemSuisse, ‘Lieferstatistik,’ 11 January 2022, https://www.cemsuisse.ch/app/uploads/2022/01/Lieferstatistik-4.-Quartal-2021.pdf

WSA, ‘December 2021 crude steel production and 2021 global crude steel production totals,’ 25 January 2022, https://worldsteel.org/media-centre/press-releases/2022/december-2021-crude-steel-production-and-2021-global-totals/

MPA, ‘Low carbon multi-component cements for UK concrete applications,’ July 2018, https://prod-drupal-files.storage.googleapis.com/documents/resource/public/Low%20carbon%20multi-component%20cements%20for%20UK%20concrete%20applications%20PDF.pdf

European Commission, ‘European Training Network for Zero-waste Valorisation of Bauxite Residue (Red Mud),’ 16 July 2020, https://cordis.europa.eu/project/id/636876

European Commission, ‘Industrial Residue Activation for sustainable cement production,’ 16 February 2022, https://cordis.europa.eu/project/id/958208

Recycling Portal, Zement der Zukunft – Forschungsprojekt „SAVE CO₂“ gestartet, 28 May 2021, https://recyclingportal.eu/Archive/65677

h2020-NEMO, ‘Project,’ https://h2020-nemo.eu/project-2/

European Commission, ‘Green cement of the future: CemShale + CemTower,’ 14 April 2021, https://cordis.europa.eu/project/id/101009382

CosmoCem, ‘Communiqué de Presse,’ https://cosmocem.org/

CO₂ Win, ‘C²inCO₂: Calcium Carbonation for industrial use of CO₂,’ https://co2-utilization.net/en/projects/co2-mineralization/c2inco2/

Les Echos, ‘Rendre le ciment moins gourmand en CO₂,’ 21 March 2022, https://www.lesechos.fr/pme-regions/innovateurs/des-substituts-au-clinker-rendent-le-ciment-moins-gourmand-en-co2-1395002