Displaying items by tag: decarbonisation

Pakistan: On 18 April 2024, the Sustainable Development Policy Institute (SDPI) and the Policy Research Institute for Equitable Development (PRIED) launched two studies focusing on the decarbonisation of Pakistan's cement sector. The initiative focuses on collaboration and technology sharing to reduce the industry's carbon footprint.

Professor Muhammad Fahim Khokhar from the National University of Science and Technology (NUST) said "The global CO₂ emissions released from the cement sector are 37.4Gt, which is rising at 1.1% per year."

The study by PRIED and NUST showed a 30% increase in cement sector CO₂ emissions in 2020 relative to 1990-2000, reaching 49.6Mt/yr. The study proposed strategies for cement sector decarbonisation, such as alternative fuels, clinker substitution, renewable energy, process electrification, energy efficiency and carbon capture technologies.

According to researcher Saleha Qureshi, the major challenge for decarbonisation is that cement industries in Pakistan rely on over 65% coal in the calcination process. Other challenges identified were lack of regulatory and policy support, absence of performance-based standards, high transition cost and limited incentive available for the transition.

Global: The Global Cement and Concrete Association (GCCA) has received nearly 100 applications from worldwide tech start-ups for its Innovandi Open Challenge, which targets the decarbonisation of cement and concrete. This year's challenge is centred on carbon capture, utilisation and storage (CCUS) technologies.

Thomas Guillot, GCCA’s Chief Executive, said "There are already more than 100 CCUS cement industry pilots, projects and announcements in the pipeline across the world – with the world’s first commercial scale carbon capture and storage plant set to complete later this year. Innovation will help our industry to deploy this technology further and faster."

Claude Loréa, GCCA’s Cement, Innovation and ESG Director, said "It’s really encouraging to see nearly 100 applications for our Innovandi Open Challenge and from all parts of the world. As well as the US, UK and India, we’ve received applications from China, Greece and Australia for the first time. It demonstrates the high level of interest in working with our industry to make cement and concrete net zero. We’re looking forward to assessing all the applications, in detail."

The association, alongside over 50 experts from member companies, will now review and shortlist the most deployable technologies, offering shortlisted start-ups access to key industry resources and networks.

Colombia: Cementos Argos and Sistema Verde have collaborated to transform nearly 27t of waste from the Estéreo Picnic music festival in Bogotá on 21 – 24 March 2024 into alternative fuel for Cementos Argos' Cartagena plant. The initiative, which includes converting materials such as plastics and cardboard into fuel, aligns with Cementos Argos’ aim to reduce fossil fuel use and CO₂ emissions per tonne of cement by 29% by 2030.

Mauricio Giraldo, director of alternative resources at Cementos Argos said "We are very pleased to be part of this alliance with which we join the global need to join efforts to make an adequate use of waste in a safe, controlled and clean manner. Our goal as a company is to dispose of more than 300,000t/yr of waste, and with actions like this, we continue to contribute to achieving this goal.”

US: Fortera has inaugurated its first ‘green’ cement production facility in North America, located in Redding, California. The 2787m² ReCarb plant operates alongside the existing CalPortland cement plant, capturing CO₂ emissions and mineralising the CO₂ into calcium carbonate for production of the company’s low-carbon ReAct cement. The process reportedly reduces emissions by 70% compared to traditional methods, yielding a tonne of ‘green’ cement for every tonne of limestone input. The facility aims to capture 6600t/yr of CO₂ and to produce 15,000t/yr of ‘green’ cement.

According to Fortera CEO Ryan Gilliam, Fortera currently has 20 upcoming projects with various cement producers, which will cost US$150m each. This includes a plant in the Midwest that will be a 25-fold capacity increase compared to the Redding plant, producing 400,000t/yr of ‘green’ cement.

Germany: Heidelberg Materials has begun work on the GeZero project at its Milke plant in Geseke. The €500 million project will implement carbon capture and storage (CCS) technology to prevent the release of CO₂, instead capturing and storing it under the North Sea. According to the Westfälische Rundschau, the project has secured €191m in funding from the EU, with Heidelberg Materials covering the remaining amount. The company anticipates completing the plant conversion by 2029, with interim CO₂ transport via rail and potential future pipeline connections. According to the company, around 700,000t/yr of CO₂ is currently produced by the plant.

There had been potential changes in project partnerships due to the sale of BASF subsidiary Wintershall Dea, which was to provide the transport and storage solutions, to Harbour Energy. However, plant manager Steffen Gajewski expects that planning for the conversion of the plant will be completed in 2025, when the new oxyfuel kilns to capture the CO₂ will be ordered and installed.

Germany: Holcim is investing a three-figure million sum into its cement plant in Lägerdorf, Steinburg, according to the Segeberger Zeitung. The plant will employ a second-generation oxyfuel kiln line to increase the concentration of CO₂ in the flue gas during clinker production. The project aims to capture 1Mt/yr of CO₂. The new kiln line is expected to be operational by 2029.

State Secretary for Energy, Joschka Knuth, said "The decarbonisation of Holcim is a very important signal for the entire industrial location of Germany."

Canada: Heidelberg Materials North America has announced a new front end engineering design (FEED) contract for its Edmonton carbon capture, utilisation, and storage (CCUS) project. This involves MHI Low Carbon Solutions Canada (MHI-LCSC) and Kiewit Energy Group who will collaborate on the carbon capture technology at the plant. The FEED study will leverage MHI's Advanced KM CDR Process, which uses the KS-21 solvent. The Edmonton plant aims to capture 1Mt/yr of CO₂.

Vice President at Kiewit, Rob Medley, said "Heidelberg Materials is taking a major step towards decarbonising hard to abate industries by deploying innovative and effective carbon capture technology."

Heidelberg Materials announced this week that it is preparing to close its integrated cement plants at Beffes and Villiers-au-Bouin in France by October 2025. It framed the restructuring as a response to ‘a significant decline in cement sales in France’ and a plan to focus on low-carbon products. Unfortunately, local media reported that around 170 jobs will be lost at the two sites. The company says it is looking at ‘socially acceptable solutions’ including redeployment to other locations in the country.

Investment has been forthcoming from Heidelberg Materials France in recent years. It reminded everyone that it initiated a Euro400m scheme at its France-based subsidiary Ciments Calcia in late 2020. Most of this was earmarked towards a new production line at the Airvault plant, which is currently being built. Other schemes at the Beaucaire, Bussac-Forêt and Couvrot integrated plants followed. More recently, Heidelberg Materials launched a carbon capture, utilisation and storage (CCUS) project at Airvault, part of the GOCO2 initiative, with the aim of starting initial capture in 2030 with full 1Mt/yr capture planned later. What the company didn’t mention though was at the time of that 2020 investment it was also preparing to convert the integrated Gargenville plant into a grinding unit, stop white cement production at its Cruas plant with the intention of turning the site into a terminal and it wanted to reduce its workforce by around 140. To be fair to Heidelberg Materials though, it did have the same goal of reducing its specific net CO₂ emissions. The added detail this week was that the group aims to generate half of its revenue from sustainable products that are either low-carbon or circular by 2030.

Heidelberg Materials France is not alone with its ambitions for low-carbon products. Holcim notably opened in early 2023 what it said was the first calcined clay unit in Europe at its Saint-Pierre-la-Cour cement plant. Heidelberg Materials then followed in May 2023 with the announcement of a calcined clay project at its Bussac-Forêt cement plant. Other clay projects from Vicat, NeoCem and Neo-Eco have been reported since then. The other prominent France-based blended cement producer that has steadily been building its business in recent years is Hoffmann Green Cement. More general plant upgrade projects that are also worth mentioning include Eqiom’s (CRH) upgrade to its Lumbres plant in February 2024 and the ignition of a new kiln at Lafarge France’s Martres-Tolosane plant in October 2023. Both of these projects have been framed as driving sustainability.

Graph 1: Cement production in France, 2014 - 2022. Source: France Ciment.

Heidelberg Materials’ assessment about the poor state of the cement market has been confirmed by local media. Sales reportedly started falling in 2022, were down by 6% year-on-year in 2023 and further downward pressure is expected in 2024. Production data shown in Graph 1 above released by France Ciment, the national cement association, doesn’t really show what has been happening with sales. Over the last 20 years production hit a high of around 22Mt in the mid-2000s before settling around 16 - 17Mt/yr from 2015 onwards. The more telling trend, perhaps, has been the increase in CEM II blended cements from 50% in 2012 to 64% in 2022. Cement production may have stayed roughly the same over the last decade but it is using less clinker than it used to. Hence the pressure on companies like Ciments Calcia to reduce clinker capacity.

A further cost pressure facing cement producers in France is the impending end to the price cap on electricity scheduled by the end of 2025. The government enacted the scheme in late 2021 at the end of the Covid-19 pandemic, but then carried on as energy prices spiked following the Russian invasion of Ukraine. France Ciment lobbied in August 2023 for further protection for the sector using the argument that decarbonisation was not possible without electricity available for a reasonable price. It added that decarbonising the cement sector in France with carbon capture would cost around Euro3.5bn. Electricity prices started rising in February 2024 as part of the government’s phase out of the scheme.

Finally, 17 people were arrested on 5 April 2024 in connection with a demonstration at Lafarge France’s Val-de-Reuil ready-mixed concrete plant in Eure. Environmental activists reportedly trespassed on the site, according to local press, causing an estimated Euro450,000 in damages with acts such as spraying foam into machinery, ripping up bags of cement, breaking windows and more. The activists presented their actions as a response to both the environmental impact of cement and concrete production and the ongoing legal allegations about Lafarge’s actions in Syria in the early 2010s. Lafarge France’s La Malle integrated plant was also similarly targeted in December 2022 when around 200 activists stormed the site and caused damage to machinery and property. Lafarge’s response at the time was to remark that there was a feeling of misunderstanding given that the La Malle plant was piloting various decarbonisation methods.
All of this presents a febrile picture of the cement sector in France. Sales are down, electricity costs are set to go up and producers are switching to low-carbon cement products. Alongside this they are also closing clinker production plants but are also investing in new decarbonisation projects. At the same time environmental protestors have also been targeting cement and concrete plants and Lafarge’s association with its former actions in Syria appear to have made it more of a target than the other manufacturers. It is unsurprising then that Holcim, the parent company of Lafarge France, has raised the risk of damage to the group’s reputation, with both the general public and investors, should it fail to meet its targets. Reaching net zero was never going to be easy but setting unrealistic targets is increasingly not an option.

Thailand: Biochar Life and Siam Cement Group (SCG) have signed a Memorandum of Understanding to jointly develop biochar-infused cement and sustainable building materials. This collaboration aims to utilise biochar in the construction industry and reduce carbon emissions.

The partnership will begin with a pilot project at Chiang Mai University, focusing on constructing biochar-infused cement roads. Biochar Life will evaluate the scalability of biochar production to meet SCG's material requirements. Both companies will engage in research and development to optimise the production and application of biochar in construction, considering environmental benefits and carbon removal credit opportunities.

SCG also plans to extend Biochar Life’s smallholder farmer program, incorporating mobile industrial units and other technologies. This joint effort is directed towards incorporating carbon-negative biochar into building materials. This will lower construction-related carbon emissions, aid in atmospheric carbon sequestration, and improve the durability and performance of these materials.

Thailand: Saraburi, which houses Thailand’s key cement plants, is expected to start converting waste to energy in a project led by the Thai Cement Manufacturers Association (TCMA). TCMA has developed a pilot project to create ‘ignitable waste pallets’, which will replace imported coal in cement production, according to TCMA chair Dr Chana Poomee. The process involves using waste from mining, cement plants and local communities to produce fuel, focusing on waste that cannot be reused or recycled.

Seven cement plants are located in the Tan Diao subdistrict due to its proximity to limestone mountains essential for cement production. The province is facing a growing waste management problem, owing to urbanisation and the expansion of agribusiness in the area. ‘Saraburi Sandbox’ project, a public-private-people partnership (PPP), seeks to address these issues.

Kittipong Promwong, president of the National Higher Education, Science, Research and Innovation Office, believes the Saraburi Sandbox is crucial to the government's commitment to lowering CO₂ emissions.