Displaying items by tag: chlorine bypass

Boral announced this week that it had secured around US$15m from the Australian government towards decarbonisation upgrades at its Berrima cement plant in New South Wales. The funding will go towards the company’s own investment in a kiln feed optimisation project. A new specialised grinding circuit and supporting infrastructure at the site is intended to increase the proportion of alternative raw materials (ARM) from 9% to 23% to decrease the amount of limestone the kiln uses. The use of more ARMs should also enable the unit to reduce its energy intensity. Boral plans to use ARMs including granulated blast furnace slag, steel slag, cement fibre board, fly ash and fine aggregates from recycled concrete. Commissioning and full operation of the changes are scheduled for 2028.

The Berrima plant officially opened its last set of changes, including a chlorine bypass unit, in December 2024. This was done to allow the plant to reach a thermal substitution rate (TSR) of 60% by the end of 2027. At the end of 2024 the company said it had a TSR of 30% having risen by 20% from 2023. Another similar decarbonisation project at the plant is a carbon capture and storage demonstration pilot trial involving the recarbonation of construction and demolition waste.

Parent company SGH said in its annual report for 2024 that Boral was continuing to advocate for a carbon border adjustment mechanism (CBAM) to prevent carbon leakage and that it had taken part in the ongoing government review on the issue. This lobbying was visible earlier in March 2025 when the Cement Industry Federation (CIF) publicly addressed the government on the issue ahead of its next budget. It asked that carbon leakage be addressed in the form of an import tax to protect the local cement and lime sector. Cement and lime imports from Thailand, Malaysia, Indonesia, Vietnam and Japan are particularly seen as an issue. The government review into carbon leakage started in 2023 and is due to report back at some point in 2025, most likely after the parliamentary election in May 2025.

Another big sector news story to note is the ongoing acquisition of the cementitious division of the Buckeridge Group of Companies (BGC) by Cement Australia that was revealed in December 2024. Unsurprisingly, the European Commission (EC) approved the deal in late March 2025. Cement Australia’s parent companies Holcim and Heidelberg Materials are headquartered in Europe, but the EC concluded that the planned transaction was unlikely to dampen competition in Europe. The verdict of the Australian Competition and Consumer Commission (ACCC) is likely to be far more telling. It closed taking submissions on the proposed deal in late February 2025 and plans to release an update in May 2025.

The ACCC’s market inquiries letter reported that Cement Australia wants to run BCG Cement. However, under the acquisition proposal, BGC Quarries and BGC Asphalt will be acquired and operated by a new 50:50 joint venture between Holcim and Heidelberg Materials, which will operate as a production joint venture in respect of aggregates. Holcim and Heidelberg Materials have suggested taking four ready-mixed concrete (RMC) plants each in the greater Perth area. Finally, one RMC plant at Wangara could be divested due to the close proximity of existing plants run by Holcim and Heidelberg Materials. Whether this is what actually happens remains to be seen.

Finally, Holcim flagged-up Australia this week as one of the regions it intends to derive ‘profitable growth’ from after the planned spin-off of the US business. This approach is in line with the hunt by the big building materials companies for new growth markets as the cost of merger and acquisition activity in the US has risen. CRH, for example, bought a majority stake in AdBri in mid-2024. Further merger and acquisition activity in the cement sector in Australia seems less likely given its relative small size. Yet the higher economic growth forecast for the country compared to Europe is likely to keep multinationals interested.

Australia: Boral has launched upgraded ‘carbon-reducing’ technology at its Berrima Cement Works in the Southern Highlands region of New South Wales (NSW). The upgraded facility features a new chlorine bypass, which reduces the build-up of chlorides and other alternative fuel byproducts. This will reportedly enable alternative fuel usage to reach 60% over the next three years at the site, doubling its current substitution rate of 30%.

India: Dalmia Bharat has accelerated its commitment to net zero CO₂ cement production by 2040 with the launch of its newTransformative and Collaborative Strategy Roadmap. The roadmap provides a framework forinnovation, growth and sustainability initiatives through shared synergies with private and public entities, including Asian Development Bank and 50 local government authorities. Initiatives already underway include non-recyclable waste disposal partnerships with local administrations across India. Dalmia Bharat is supporting these initiatives with the installation of chlorine dust bypass systems at two of its cement plants, the first in India. The producer's cement operations are already 40% renewably powered and 13 times water positive.

Dalmia Bharat's environmental, social and governance (ESG) executive director and chief risk officer Arvind Bodhankar said “As a cement producer, we are attached to people’s happiness by gluing thousands of dreams into reality. We therefore strive to give our customers only the best building materials with the lowest environmental impact. In addition, we also intend to drive a net-zero emissions reality with a strategy that’s aligned with our business philosophy, Clean and Green is Profitable and Sustainable.”

Australia: Boral plans to install chlorine bypass technology at its Berrima cement plant in New South Wales. The Illawara Mercury newspaper has reported that the installation will help the plant to double its alternative fuel (AF) substitution rate to 100%. This is one of the ways in which the producer aims to reduce its Scope One and Two emissions by 46% between 2020 and 2030.

In mid-February 2022, Boral acquired new land at the site of its Dunmore quarry, also in New South Wales.

Switzerland: A TEC has secured a contract to install a new ReduChlor chlorine bypass system at Holcim Schweiz’s Eclépens cement plant in Vaud. The supplier says that it will also fit a bypass dust handling system and upgrade the alternative fuel (AF) feeding system at the plant.

Portugal: Denmark-based FLSmidth has won a contract to supply a chlorine bypass system to Cimpor’s Souselas cement plant. The aim is to eliminate chlorine build-up in the plant’s flue gas after the company increases its refuse-derived fuel (RDF) usage rate to 60%. Work is scheduled to begin in mid-2021, and production will stop until its completion and the commissioning of the installation in early 2022. No value for the order has been disclosed.

Cimpor Cement project manager Paulo Evangelista said, “Investing in the chlorine bypass is a key step on our journey towards reducing our environmental footprint. On top of the obvious incentives to increase our fuel substitution, like lower CO₂ emissions and financial savings, we are experiencing better waste handling infrastructure in the local area. All this has made it an easy choice to make. FLSmidth knows our Souselas site and has been key in delivering a solution that will enable this next phase on our sustainability journey.”

Hungary: Lafarge Cement Hungary has announced plans to upgrade clinker production at its 1.0Mt/yr Kiralyagyháza integrated plant with a Euro1.79m investment in chlorine bypass technology, which uses powdered limestone to remove chlorine and one tenth of the carbon dioxide (CO₂) from gases released in clinker production, which will then be used in clinker cooling. There will be a concomitant increase in the rate of alternative fuel (AF) substitution in the plant’s kilns, with an AF fuel store expansion in early 2020 set to raise AF usage to 80% from 60%.