Displaying items by tag: Emissions

Sweden: Heidelberg Materials has successfully operated a 300kW plasma-heated cement kiln at its Slite cement plant, which it claims is the first of its kind. The producer has achieved 54 hours of continuous operation, with 60% CO₂ concentration in the flue gas. The aim is to reach 99%.

The kiln is part of the ELECTRA project, which aims to replace traditional combustion processes with electricity-based solutions, like plasma. The project consists of 17 partners from 8 countries.

Project manager Bodil Wilhelmsson said "It looks very promising. We started the tests at the end of last year and can now say with certainty that this is the right way to go: we will be able to produce clinker with plasma."

Fuel-related CO₂ emissions from cement production are eliminated because no fuel needs to be used in the production process. Instead, CO₂ is heated to over 5000°C, where it becomes a plasma jet that heats the material in the kiln.

Wilhelmsson added "The absence of fuel in the process means that there is no ash in the product. This means that a parameter that could affect the quality of the product if it fluctuates is no longer considered. So, it looks like the quality of the clinker can actually be slightly higher in this process."

Heidelberg Materials plans to build a 1MW kiln in Skövde cement plant in 2026, where further tests will continue.

Taiwan: The government will draft carbon border adjustment mechanism (CBAM) legislation in the second half of 2024 ‘at the earliest’, according to the Taipei Times. The measure will follow the EU's CBAM implementation in 2026, with official guidelines expected to be issued by July or August 2025.

Domestic cement and steel producers have reportedly complained to the Ministry of Environment that competing importers are not required to disclose their emissions. Subsequently, the Ministry is preparing a list of importers to be regulated. According to the Minister of Environment, Peng Chi-Ming, Taiwan imports about one-third of its cement from Vietnam, which would be subject to CBAM regulations.

The legislation will align with corresponding EU regulations and complement carbon fees for domestic producers introduced in 2024.

Indonesia: The Ministry of Industry will introduce mandatory emissions limits for cement producers, as well as for those in the fertiliser, paper and steel industries. Companies will be encouraged to participate in carbon emissions trading.

Apit Pria Nugra, head of the Green Industry Centre at the Ministry, said that companies could receive compensation for emissions below the limit, but that they would need to purchase carbon credits from other companies if they exceed the limit.

The government will subsequently extend the emissions trading scheme to five additional sectors.

Egypt: Arabian Cement Company (ACC) has signed a €25m loan agreement with the European Bank for Reconstruction and Development (EBRD). The loan will be used to assist the company’s decarbonisation efforts. It will finance the company’s alternative fuel capacity expansion and automation of its facilities. The company will also acquire and install a hydrogen injection system at its Ain Sokhna cement plant. This will reduce CO₂ emissions by 130,000t/yr.

CEO of Arabian Cement, Sergio Alcantarilla, said "This agreement with EBRD is a key milestone in ACC's sustainability journey, supporting our transition to cleaner technologies. The integration of the hydrogen injection at our Ain Sokhna plant will enhance operational efficiency and significantly reduce our carbon footprint."

US: Carbon capture firm Nuada and lime producer MLC (formerly Mississippi Lime Company) have signed a memorandum of understanding to demonstrate net-zero lime production at MLC's Ste. Genevieve plant in Missouri. The partners aim to contribute to a reduction of the facility’s CO₂ emissions by 95%.

Nuada’s technology uses metal-organic frameworks as a solid sorbent alongside vacuum swing pressure adsorption, which utilises pressure rather than heat to separate CO₂ from flue gases.

Co-CEO Jose Casaban said "Our breakthrough in carbon capture technology sets a new standard for energy efficiency, paving the way for transformative decarbonisation in hard-to-abate sectors like lime manufacturing. Through this collaboration with MLC, we are driving the next generation of carbon capture forward, setting a new standard for emissions reduction and sustainability in the lime industry."

Canada: Ash Grove Cement, part of CRH, says it will release the findings of technical studies supporting its plan to burn alternative fuels at its Mississauga cement plant. Ash Grove plans to burn materials such as construction and demolition waste, wood, plastics and rubber.

The company says the initiative will reduce fossil fuel emissions by limiting its current reliance on coal, while also diverting materials from landfill.

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.