Displaying items by tag: lime

Europe: CRH has finalised the sale of its lime operations across Europe for US$1.1bn. The transaction concluded with the divestment of the group’s operations in Poland.

Australia: Calix has been awarded a US$10m grant from the Australian government’s Carbon Capture Technologies Program to build a commercial demonstration electric calciner for ‘near zero emissions’ lime and cement production. The grant covers up to 50% of the expenditure, contingent on meeting project milestones.

The project will utilise the Leilac technology to capture up to 20,000t/yr of CO₂ from the cement and lime manufacturing processes. The project will create two revenue streams via a ‘near zero emissions’ lime product, as well as up to 15,000t/yr of captured CO₂ being sold to the SM1 project for green methanol production.

In the second phase of the project, production will be expanded to include the processing of cement raw meal to a ‘near zero emissions’ clinker product, with captured CO₂ supplied for use.

Peru: The Gloria Group is set to expand its operations with a new lime plant in Lima's industrial zone, according to CE NoticiasFinancieras. This development is promoted by the group’s cement, concrete and lime subsidiary Cemento Yura. The proposed plant, will have a production capacity of over 350,000t/yr and will serve both domestic and export markets. Currently, the group operates Cal y Cementos Sur (Calcesur), which produces quicklime and hydrated lime in Juliaca with a capacity of 1Mt/yr. With lime demand rising, particularly from the mining and construction sectors, Gloria Group is also considering further plant projects.

The company is reportedly confident that the procedures for obtaining operating permits for new projects in the mining sector will be expedited in order to stimulate the demand for lime. It also did not rule out the implementation of new plants.

Zimbabwe: Khayah Cement has reported a significant increase in sales volumes across its operations for the year ending 31 December 2023. Dry mortar product sales volumes surged by 153%, bolstered by the demand for the Supagrow agricultural lime range within the government's Pfumvudza agriculture programme, absorbing 0.34Mt during the period. The firm's cement business also saw a 34% year-on-year increase in sales volumes following the installation of a vertical cement mill in the third quarter of 2022.

Despite challenges such as power quality issues and equipment breakdowns impacting production, bulk cement volumes grew from 1% to 4% during the period. However, clinker production volumes fell by 21%, mainly due to the mothballing of the kiln in the last half of 2023.

The company said “A total of 1000 hours were lost as a result of the unplanned breakdowns which in turn impacted negatively on both clinker, cement production and sales volumes and with it profits and cash generation.”

UK/Poland: SigmaRoc announced it has entered a share purchase agreement and exercised a call option to acquire the Polish lime operations of CRH. The deal, valued at €100m for deferred consideration, follows SigmaRoc's acquisition of CRH's lime operations in Germany, Ireland, the Czech Republic and the UK. The acquisition includes two production sites in Kujawy and Sitkowka, along with an associated distribution network. Completion is contingent upon clearance from the Polish Competition Office, anticipated by the end of September 2024.

SigmaRoc said it is ‘pleased’ with the progress to date on the integration of the German, Czech, Irish and UK entities, and will provide a further update alongside its interim results for the period ending on 30 June 2024.

Delegates at the Global CemCCUS Conference last week applauded when Anders Petersen, the Senior Project Manager Brevik CCS, Heidelberg Materials said that the Brevik cement plant will be capturing CO₂ and permanently storing it within the year. Rightly so. This moment will mark a historic milestone for the sector when it arrives. Net zero cement production is coming.

Last week’s event in Oslo delivered an overview of the current state of carbon capture in the cement and lime industries. It explored the practical challenges these industries face in capturing CO₂ emissions and - crucially – then working out what to do with them afterwards. Incredibly, delegates were able to view the construction site of Heidelberg Materials’ forthcoming full-scale carbon capture unit at its Brevik plant in Norway. On the same day as the tour, Holcim broke ground on the Go4Zero carbon capture project at its Obourg plant in Belgium.

The key takeaway at the conference was that a (dusty) bulk solids sector is starting to work with handling (clean) gases in a way it hasn’t before. This recurred repeatedly throughout the conference. Petersen summarised it well when he described Brevik as a meeting pointing between the cement industry and the petrochemical one. It looks likely at present that there will not be a single predominant carbon capture technology that the majority of cement plants will deploy in the future. Similarly, CO₂ storage infrastructure and sequestration sites differ. Utilisation plans are less developed but also offer various options. Yet, if carbon capture becomes common at cement and lime plants, then these companies will need to learn how to filter and handle gases regardless of the capture method and destination for the CO₂. So presentations on filtration and compressors were a revelation at CemCCUS.

The key obstacle remains how to pay for it all. By necessity, most of the big early projects have received external funding, mostly from governments. Although, to be fair, the private companies involved are often investing considerable amounts of their own money and taking risks in the process too. In the European Union (EU) CO₂ is being priced via the Emissions Trading Scheme and investments are being made via the EU Innovation Fund and other schemes. In the US the approach lies in tax breaks, on-shoring and investment in new sustainable technologies.

However, other countries have different priorities. Or as a South Asian contact told Global Cement Weekly at a different conference, “How can our government think about sustainability when it can’t feed everyone?” The world’s biggest cement producing countries are China and India, and then the EU and the US follow. Brazil, Türkiye and Vietnam are at similar levels or not far behind. The EU and the US represent about 9% of global cement production based on Cembureau figures for 2022. China and India cover 61% of production. Neither of these countries has announced a plan to encourage the widespread construction of carbon capture units. Once China ‘gets’ cement carbon capture though, it seems plausible that it will dominate it as it has in many other sectors such as solar panel production. Exporters such as Türkiye and Vietnam will have to adapt to the rules of their target markets.

The march by the cement and lime sectors towards carbon capture has been long, difficult and expensive. It also has a long, long way to go. Yet, the next decade promises to be exciting as new technologies are developed and tested, full-scale projects are commissioned and CO₂ pipelines, sequestration sites and usage hubs come online. The next key milestones to look out for include the first full-scale installations using other capture methods (such as oxy-fuel kilns), the first CO₂ pipeline network that hooks up to a cement plant, the first land-based sequestration site, the first industrial hub that uses CO₂ at scale to manufacture a product, new government policies in China and India, and the first large unit that is funded entirely from private finance. To end on a positive note, a Cembureau representative at the Global CemCCUS Conference reckoned that Europe will be able to capture 12Mt/yr of CO₂ by 2030. If it happens, this will be a major achievement and a serious statement of intent towards net zero for the sector.

This short recap of the event barely touches the surface of what happened so be sure to read the full review of the 1st Global CemCCUS Conference.

The 2nd Global CemCCUS Conference will take place in Hamburg in May 2025

South Korea: A recent study from Daejeon explored the potential of low-lime calcium silicate cement as a low CO₂ emission alternative to Ordinary Portland Cement. Researchers from the Korea Institute of Geoscience and Mineral Resources examined the setting and flow characteristics of a mixture of Ordinary Portland Cement and low-lime calcium silicate cement under carbonation curing conditions. The study was financially supported by the Ministry of Trade, Industry & Energy's industrial strategic technology development programme.

The study aimed to explore the reaction and microstructural characteristics of these cement pastes. The low-lime calcium silicate cement was synthesised using limestone and silica fume, with varying proportions added to the Portland cement pastes. The research findings suggest improvements in compressive strength with the inclusion of 30% or more low-lime calcium silicate cement, highlighting its ability to enhance the durability and sustainability of construction materials.

Ireland: CRH says that it has completed the sale of its UK lime business. The sale concludes the second phase of the group’s divestment of its lime operations in Europe, first announced in November 2023. The total sale value of CRH’s European lime business is US$1.1bn.

Sweden: Umeå University is part of the ELECTRA project, a €20m EU initiative aimed at advancing green transition in cement and lime production through electrified processes. This project, involving global industry leaders, is funded under the Horizon Europe initiative and led by VTT Technical Research Centre of Finland.

The Department of Applied Physics and Electronics at Umeå University has collaborated with the Swedish quicklime and cement industry since 2007. Matias Eriksson, director of the Centre for Sustainable Cement and Quicklime Production at Umeå University, said “This is an important project. It is the first Horizon Europe project we are participating in," He continued "We are pleased with the confidence the European Commission, heavy materials industry and other research performers show in our work. ELECTRA can play an important role in the industry's green transition, first and foremost in Sweden and the rest of Europe. But because the technology and the industry are global, the effects can be extensive."

Australia: Adbri has announced the early termination of its contract to supply quicklime to aluminium producer Alcoa, ending in April 2024 instead of the original plan for six months later. This decision is part of an amendment to meet changing demand. The news comes amid Adbri's ongoing review of its Western Australia lime operations and follows Alcoa's recent production curtailment at its Kwinana refinery. Adbri previously supplied to three Alcoa alumina refineries in Western Australia, but the number was reduced to one in 2021. 

Adbri is also in the process of finalising a US$2.1bn buyout with Irish company CRH.