Displaying items by tag: Emissions

Portugal: CBMI has signed an engineering, procurement and construction contract with SECIL Cement Group for the renovation of the 1800t/day clinker line at the Maceira plant.

The project includes the installation of a new firing system and a series of upgrades to improve energy and heat efficiency. The upgrade encompasses five decarbonisation measures, including a 100% alternative fuel design rate, with the aim to decrease CO₂ emissions by 30% compared to 2019 levels. This would reportedly reduce CO₂ emissions to 550kg/t of clinker.

Spain: Votorantim Cimentos Spain will invest €3.2m in a new clinker cooler at its Málaga plant, according to Alimarket. The upgrade will reportedly reduce thermal and electrical energy consumption and avoid approximately 11,000t/yr of CO₂ emissions. The project will receive a €725,960 subsidy from the regional government of Andalusia.

US: The Department of Energy’s (DOE) Office of Fossil Energy and Carbon Management has announced US$101m in funding for five projects to establish carbon capture, removal, and conversion test centres for cement plants and power facilities. The test centres aim to cost-effectively research and evaluate technologies to capture and convert CO₂ into products from utility and industrial sources, or by removing CO₂ from the atmosphere. The initiative aims to reduce CO₂ emissions, promote sustainable technologies and create job opportunities.

Notable projects include the University of Illinois in Urbana, which plans to design a test centre to evaluate carbon management technologies for the cement industry, and Holcim US, which intends to establish a Cement Carbon Management Innovation Centre at its Hagerstown facility in Maryland.

Brad Crabtree, assistant secretary for Fossil Energy and Carbon Management, said “Carbon management technologies such as carbon capture can significantly reduce emissions from fossil energy use and key industrial processes, like cement production. By investing in test centres, we are helping reduce barriers to commercial-scale deployment of carbon capture, conversion and removal technologies that will ultimately help reduce pollution and create jobs.”

US: Cemex has obtained US$13m through the Texas Emissions Reduction Plan (TERP) to deploy four lower-emission locomotives and two haul trucks at its cement and aggregate sites in New Braunfels and Katy, both in Texas. TERP provides financial incentives to businesses and governments to reduce emissions from vehicles and equipment. Three of the four locomotives and both trucks began operations in late 2023 and mid-2024 in New Braunfels, respectively, according to Energy Tech news. Cemex reportedly intends to deploy additional equipment in 2025.

A US$2m grant from the Environmental Protection Agency’s (EPA) Diesel Emissions Reduction Act (DERA) will fund two additional locomotives for Cemex’s Florida operations in Jacksonville and Miami in the summer of 2025. Cemex plans to decommission the vehicles that are replaced and expand its low-emission fleet for its operations in Victorville, California.

US: Continental Cement Company will pay a US$74,440 civil penalty and spend at least US$282,000 to procure low-emission buses for a local school district as part of a settlement following alleged Clean Air Act violations. The replacement propane buses will reduce air pollution in areas impacted by excess emissions from Continental Cement’s operations.

According to the Environmental Protection Agency (EPA), it identified inadequate operation of leak detection systems during a December 2022 inspection, which are designed to notify the company of potential hazardous emissions. Without a functioning leak detection system, the facility would be unaware of whether pollutant filters are operating effectively to reduce emissions of particulate matter and other air pollutants.

Japan: Fortera is collaborating with Sumitomo Corporation to introduce its ReCarb technology in Asia, starting with Japan. The two companies have signed a memorandum of understanding to deploy Fortera’s bolt-on ‘low-to-zero-carbon’ cement plants across the region, focusing on the largest cement manufacturers.

Fortera’s ReCarb process converts industrial CO₂ directly from cement production into cement that is reportedly third-party verified as having 70% less embodied carbon tonne-for-tonne than ordinary Portland cement. When paired with renewable energy, Fortera can achieve zero-CO₂ cement production.

Ryan Gilliam, CEO of Fortera, said "This partnership is a pivotal moment for the future of sustainable cement production, because you can’t make a meaningful impact on the industry’s carbon emissions without partnering with major industry players in Asia, which is home to the largest cement market in the world."

India: A Bangalore-based startup formed at the Indian Institute of Science (IISc) has developed an ‘eco-friendly’ cement alternative using geopolymer technology. The product claims to reduce CO₂ emissions by 21.5kg/m² of pavers produced compared to ordinary Portland cement, according to The Economic Times. It also claims to eliminate water use and offer a 15-20% cost advantage. The product achieves full strength in just three days, compared to the 28 days required for Portland cement.

Nanjunda Rao, one of four cofounders of Novacret and chief research scientist at IISc, said “The benefits are significant, geopolymer-based materials achieve full strength in just three days in tropical climates like India, compared to the 28 days required for Portland cement.”

UK: Cemex and SUEZ Recycling and Recovery have celebrated the use of 1Mt of alternative fuel at Cemex’s Rugby cement plant since the adjacent SUEZ Malpass Farm facility opened in 2015. The partnership has reduced coal consumption at the plant by over 750,000t, alongside downstream CO₂ savings from supply chain emissions transporting and shipping coal on-site.

SUEZ processes non-recyclable materials at Cemex’s Rugby facility to produce Climafuel. The fuel is derived from sifted and shredded waste from local authorities and businesses in the Midlands, and is used to heat the kiln at the neighbouring Cemex plant. Ash from the Climafuel is also incorporated into clinker production.

Phil Baynes-Clarke, director of cement operations for Cemex UK, said “Since 2013, we have collaborated closely with SUEZ to produce Climafuel, a refuse-derived, non-fossil-based alternative fuel used to heat the kiln in the cement-making process. Over the past decade, Climafuel usage has steadily increased at our Rugby cement plant. Our ultimate goal is to operate the kiln with 100% alternative fuels, and we are getting close to this target.”

UK: Nuada and Carbfix have signed a memorandum of understanding to deliver integrated carbon capture and storage (CCS) solutions targeting emissions reduction in the cement, lime, steel, waste-to-energy and bioenergy sectors. The partnership combines Nuada’s carbon capture technology with Carbfix’s underground CO₂ mineralisation method.

Nuada’s technology uses solid sorbents, metal organic frameworks, and vacuum pressure swing adsorption to capture CO₂ from the source while addressing barriers like energy consumption and cost. Carbfix’s storage method accelerates the mineralisation process by injecting CO₂ into basaltic rock, where it reportedly transforms permanently into stone within two years.

UK: Material Evolution has launched its 'ultra-low carbon' cement production plant, Mevo A1, in Wrexham. The facility was commissioned in October 2024 and operates on an industrial scale with a capacity to produce 120,000t/yr of its MevoCem product, which the company claims can achieve up to 85% emissions reductions compared to ordinary Portland cement. The plant uses Material Evolution's alkali-fusion process that doesn’t require heat or a kiln, producing a cement capable of undergoing geopolymerisation.

Sam Clark, co-founder and chief operating officer said "This launch takes us one step closer to achieving our goal of removing one gigaton of CO₂ by 2040."