Displaying items by tag: Plant

Germany: ThyssenKrupp Uhde, Holcim and the Technische Universität Berlin have started a joint project to investigate the use of a novel amine scrubbing technology for carbon capture. The goal is to significantly reduce CO₂ emissions from existing cement plants and at the same time utilise the captured CO₂ for other applications. This includes the development of new mass transfer process equipment that is more efficient and resilient to contaminations. The project is being funded by the German Federal Ministry for Economic Affairs and Climate Action.

The equipment is being tested using exhaust gas at Holcim’s Beckum plant. Various possibilities for using the captured CO₂ are also being examined, such as manufacturing methanol or sustainable fuels. The aim is develop a technology that can be retrofitted at existing cement plants.

Ralph Kleinschmidt, head of technology, innovation and sustainability at ThyssenKrupp Uhde said, "Amine scrubbing is already commonly used to recover CO₂ from process gases or exhaust gases. Now, we are developing the technology further and optimising it for the cement industry. Additional applications for capturing CO₂ direct at source, such as in waste incineration plants, are also possible."Arne Stecher, head of decarbonisation at Holcim Germany added that the company is testing different processes to find the best carbon capture technology.

Cambodia: Conch International Holding (HK) subsidiary Conch KT Cement has completed the feasibility study for its upcoming US$250m Kampong Speu cement plant at Monorom in Horng Samnan Commune. The Phnom Penh Post newspaper has reported that the company is collaborating with stakeholders to develop a ‘masterplan’ to manage all potential impacts revealed in the feasibility study. The plant is Conch KT Cement’s second in the country, with the help of which it hopes to secure a reliable domestic cement supply for Cambodians, making use of the kingdom’s abundant raw materials.

In the first 10 months of 2021, Cambodia imported US$40m-worth of cement, down by 33% year-on-year from US$59m in 2020.

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

Germany: Australia-based Calix says that its LEILAC-2 carbon capture retrofit of HeidelbergCement's Hanover cement plant has passed its financial investment decision. The company is accordingly proceeding with detailed design and long-lead item purchasing. It will launch construction in 2023. Calix added that, due to a number of project risk flag points given the 'market situation,' it will not buy major components until closer to that time.

When commissioned, the installation will capture 0.1Mt/yr of CO₂ and cost an estimated Euro20 - 25/t of CO₂ captured.

France: Vicat plans to use a kiln at its 1Mt/yr Xeuilley, Meurthe-et-Moselle, cement plant for trials of cement production using new alternative raw materials developed under the international CO₂Redres supplementary cementitious materials (SCM) project. The project brings together Vicat, HeidelbergCement subsidiary CBR, Buzzi Unicem subsidiary Cimalux and CRH subsidiary Eqiom in an effort to map mineral resources, waste deposits and usable residues ‘on a cross-border scale.’ On the basis of this research, the partners will seek to develop new SCMs for use in cement production.

Oman: The Ministry of Commerce, Industry and Investment Promotion has held a meeting with cement companies, importers, distributors and related government departments to discuss cement shortages in some regions of the country. One local plant has suspended production due to high input costs, according to the Oman Daily Observer newspaper. However, Oman Cement Company says it is prepared to boost its production by 10% to meet local demand. Following the meeting the ministry has taken several steps to ensure the availability of cement across the country and maintain prices. These include increasing the production output at some cement plants and increasing imports.

China: China Resources Cement’s profit was US$993m in 2021, down by 13% year-on-year from 2020 levels. Its cost of sales grew by 22% to US$3.81bn from US$3.12bn. The group noted that the average cost of coal increased by 54% in 2021. It also pointed out that infrastructure investment growth slowed down in 2021. The company increased its turnover for the year by 9.7% to US$5.62bn. Sales volumes of cement and clinker fell by 7% to 81.3Mt and 7% to 3.3Mt respectively. Concrete sales volumes grew by 11% to 14.8Mm³.

During 2021 the group started construction of a second clinker production line and two cement grinding lines at its plant in Wuxuan, Guangxi. Once the upgrades are completed the plant will have a total cement and clinker capacities of 2.4Mt/yr and 1.4Mt/yr respectively. The group also acquired a 51% stake in Hunan Liangtian Cement in January 2022 to enter into the market in Chenzhou, Hunan. This company has cement and clinker production capacities of 1.6Mt/yr and 2Mt/yr respectively. An ongoing upgrade will increase the cement production capacity of 2.1Mt/yr. In March 2022 it sold its 72% stake in Shanxi China Resources Fulong Cement to Tangshan Jidong Cement to enable it to leave the northern market.

China Resources Cement has also been growing its co-processing capabilities in 2021. At the end of the year it reported 10 co-processing projects with a total capacity of 1.7Mt/yr. The projects, mostly based in Guangxi and Yunnan provinces, process municipal solid waste, urban sludge and industrial waste.

El Salvador: Cementos Fortaleza is establishing a new 0.3Mt/yr cement plant at Acajutla in Sonsonate Department. The Diario El Mundo newspaper has reported that the subsidiary of Grupo Regalado and Mexico-based Elementia plans to commission the plant in eatly 2023. The company will invest US$40m in its construction. The plant will produce its cement from 20% El Salvadorean-produced raw materials and will primarily serve local consumption, with the possibility of also exporting some cement.

Grupo Regalado representative Marcos Regalado Nottebohm said “It is challenging to invest in a project of such magnitude. This has been a natural step between two large business groups of great renown.”

China: Fujian Jianfu Cement has hired Citic Heavy Industries to carry out engineering design, procurement, construction and delivery of its upcoming 4500t/day ‘green smart’ cement plant. Process Worldwide Online News has reported that the plant will cost US$136m and operate with a high degree of process automation. As such, Citic Heavy Industries will rely on 3D parametric equipment design and digital twin technology in order to generate equipment models, incorporate artificial intelligence (AI) and maximise data potential for lifecycle operations.

Cement producers in the north of Pakistan have started to increase their use of coal from Afghanistan in response to the ongoing volatility in energy markets. Research from a report by Darson Securities found that companies were already using up to 70% Afghan coal in their fuel mix with a further 20% being considered. Most of the northern producers are reported to have secured the cheaper Afghan coal for about two months of inventory, although Maple Leaf Cement was said to have four to five months of inventory. Meanwhile in the south of the country, producers were reported to be facing a tougher situation as Afghan coal costs more for them due to higher logistics charges and export orders were being reduced due to the low cost of clinker internationally. So they are focusing on the domestic market instead.

Graph 1: Cement despatches in Pakistan, 2015 – 2021. Source: All Pakistan Cement Manufacturers Association.

Data from the All Pakistan Cement Manufacturers Association (APCMA) shows that cement despatches have been steadily growing since the mid-2010s with a blip in 2020 caused by the start of the Covid-19 pandemic. The upward trend has been driven by local sales. Exports have generally grown at the same time, with more variance, but they are yet to regain the high of nearly 11Mt reported in 2009. On a rolling annual basis, local sales have remained steady since mid-2021 but exports have been slowly falling. In April 2021 they were 9.17Mt but by February 2022 they were 7.33Mt. For the February 2022 figures APCMA blamed this on the growing cost of production, rising international freight rates, mounting coal prices and a trade ban with India. On that last point for example, Pakistan-based producers exported 1.21Mt of cement to India in the 2017 – 2018 financial year before exports stopped after February 2019. Despite a brief respite in the spring of 2021 talks are still ongoing to resume trade with India.

On the corporate side the country’s largest cement producer by capacity, Lucky Cement, drew the same conclusion as the APCMA with its half-year results to 31 December 2021. Its local sales volumes were down a little but its exports were down a lot. It noted that the reason its local sales were falling but national industry local sales were up slightly was due to some competitor plants being non-operational in the previous year. However, the company managed to keep sales revenue and earnings increasing year-on-year by successfully combating growing input costs with price rises. Bestway Cement, the country’s other large producer, reported a tougher situation in the second half of 2021, with both local sales and export volumes down. This was attributed to a boom in construction activity in the second half of 2020 as Covid-19 lockdowns were eased. Demand for cement since then was said to be ‘sluggish’ due to inflation and high commodity prices. It also pinned its marked fall in exports on political and economic instability in Afghanistan. However, turnover and operating profit were both up due to higher selling prices.

Elsewhere in the sector news since the start of 2021, Pakistan’s exports to South Africa remained stymied in early 2020 due to a review of ongoing tariffs and the government decision to restrict infrastructure projects to only using locally produced cement. On the sustainability front the APCMA started to set out its decarbonisation strategy in November 2021. It may have a long way to go given that a think tank reported earlier in the year that the cement sector was the largest emitter of coal-related CO₂ emissions in the country, even more than power generation. Alongside this plenty of capacity additions have been announced. Lucky Cement started commercial cement production at its 1.2Mt/yr integrated Samawah cement plant in March 2021. Various new cement plants and upgrades to existing plants have been proposed by Bestway Cement, Cherat Cement, Fauji Cement, Kohat Cement Company, Lucky Cement and Maple Leaf Cement. Finally of note to a sector troubled by energy prices, in September 2021 the Pakistan International Bulk Terminal said it was going to upgrade its coal handling capacity to around 17Mt/yr by 2024.

Last week’s Global Cement Weekly covered Turkey. The contrasts are interesting because both of these countries have high cement exports and have raised energy concerns recently. This leads to the question of whether other cement exporters may be vulnerable to the current situation. Pakistan isn’t the only country where the cement industry is facing the negative effects of growing energy costs. This week in the sector news, Spain-based Tudela Veguín has shut down the kiln at its La Robla plant down for 10 days due to high electricity prices, Thailand-based Siam Cement Group (SCG) announced it was reviewing its investment plans and the UK-based Mineral Products Association lobbied the government on the issue.

The shift to Afghan coal by Pakistan’s cement producers is rational given the current situation. No doubt fuel buyers all over the world are doing similar things. In January 2022 the International Monetary Fund (IMF) forecast that Pakistan’s gross domestic product would grow by around 4% for 2021, 2022 and 2023 but current geopolitical events may test these estimates. Over the last year domestic cement demand has remained strong but inflation, growing input costs and the impetus to further rise prices may change this. Meanwhile, lots of new production capacity is in the pipeline and, if or when it is built, it may add additional competition pressure. This may present a problem in Pakistan if capacity utilisation levels drop but input costs keep on going up.