Displaying items by tag: Emissions

UK: Aggregate Industries subsidiary Lafarge Cement has begun installing a new Euro10m bag filter system at its 1Mt/yr Cauldon cement plant in Staffordshire. The project is due for delivery in early 2024. The system consists of 2080 fabric bags to remove particulates from the plant's flue gases. It will replace the plant's existing electrostatic precipitation system. The company says that the system will triple the removal rate of particulates, reducing them to 10mg/Nm³ from 30mg/Nm³.

Cauldon cement plant manager Thierry Davila said “The installation of the new system will help us provide a step change in our efficiency and effectiveness, and optimise kiln performance. The plant and our operations will hugely benefit from up-to-date technology, which will result in more consistent running of the site, but also it will improve environmental performance and benefit the local community. The new filter system will mean less dust and emissions into the atmosphere and a reduction in pollutants, which is hugely positive and in line with our approach to sustainability.”

World: The Global Cement and Concrete Association (GCCA) and Leadership Group for Industry Transition (LeadIT) launched the Green Cement Technology Tracker on 20 July 2023. The Green Cement Technology Tracker presents users with a real-time overview of active initiatives to reduce CO₂ emissions in the global cement industry. At present, the tracker covers carbon capture projects, which account for 36% of planned emissions reductions under the GCCA’s 2050 Roadmap for Net Zero Carbon Concrete. The partners plan to subsequently expand the scope of coverage to other emissions reduction technologies.

GCCA CEO Thomas Guillot said “Unleashing technology such as carbon capture, utilisation and storage is key to achieving our net zero mission in our sector. Carbon capture pilots, projects and announcements are picking up pace across the world. This technology works, and our next goal is to scale up, working with stakeholders such as governments and the investment community to help transform the industry worldwide.”

The Green Cement Technology Tracker is freely accessible here on the LeadIT website.

Ivory Coast: LafargeHolcim Côte d'Ivoire has invested a total US$677,000 in sustainability-enhancing upgrades to its 2Mt/yr Abidjan grinding plant since 2020. Agence Ivoirienne de Presse has reported that the producer has now implemented 80% of recommendations made by sustainability auditor Centre Ivoirien Antipollution (CIAPOL). Recommendations included the installation of dust capture systems.

General manager Rachis Yousry said "In 2022, LafargeHolcim received zero complaints from local residents for environmental degradation.” He added the producer was on track to realise net zero CO₂ emissions by 2050.

France: Cem'In'Eu has launched FUSIOCIM, a CEM II/C pozzolan cement, that offers a 43% reduction in CO₂ emissions compared with ordinary Portland cement (OPC). FUSIOCIM has specific CO₂ emissions of 506kg/t. It is suitable for various concrete applications and comes in 25kg bags.

Cem’In’Eu general manager Fabien Charbonnel said "We created Cem’In’Eu with the ambition of reducing the carbon footprint of the cement industry. And we are proving it today with a low-carbon offer that easily replaces traditional cements, without any change for construction professionals. We are convinced that this transition can only be done with pragmatism and taking into account the needs of users.”

US: In 2022, Fortera began building a 15,000t/yr-capacity plant to produce its low-carbon cementitious material, Fortera Reactive Calcium Carbonate (RCC), at CalPortland's Redding cement plant in California. The commercial-scale plant will produce a reactive form of calcium carbonate using CO₂ from the kiln of the 600,000t/yr cement plant. Fortera's process converts 1t of limestone into 1t of Fortera RCC by capturing and mineralising CO₂ from the cement plant's kiln. Fortera cement production emits 60% less CO₂ than ordinary Portland cement (OPC). The 15,000t/yr plant will operate at 20 times the scale of previous pilot tests. The Redding Record newspaper has reported that 15 workers will be employed at the site.

Former Redding cement plant owner Lehigh Hanson formed an agreement with Fortera to collaborate on the low-carbon cement plant project in March 2021. The plant subsequently switched ownership to Martin Marietta Materials in October 2021, before CalPortland bought it in July 2022.

Argentina: Cementos Avellaneda has inaugurated its 22MW La Calera solar power plant in San Luis Province. Forbes has reported that the power plant will supply electricity to the producer's 1.1Mt/yr San Luis cement plant. As a result, operations at the plant will henceforth be 55% renewably powered. In total, the new solar power plant will eliminate 22,600t/yr-worth of CO₂ emissions. Engineering company Industrias Juan F Secco supported the installation of the US$25m plant, which took 16 months to build.

Cementos Avellaneda's general director José Luis Maestri said "It was key to the success of this project to have been able to find a strategic partner such as Industrias Juan F Secco, an Argentine company with more than 80 years of history and experience in the energy sector, which provided us with all its professionalism and commitment."

UAE: Lafarge Emirates Cement, part of Holcim, has awarded a contract to Mitsubishi Heavy Industries Group subsidiary Turboden to supply and install a 10MW waste heat recovery (WHR) system at its Fujairah cement plant. The system relies on ENGIE Solutions' organic Rankine cycle technology. The supplier says that the installation will reduce the 3.2Mt/yr cement plant's energy-related CO₂ emissions by 29,000t/yr (28%).

Turboden CEO Paolo Bertuzzi said "We are proud that Holcim Group, already our customer for three other WHR plants, has again chosen Turboden for this first project in the UAE. At COP 28, this year in the UAE, we will have the opportunity to present this energy-saving and CO₂-reducing project to raise awareness in energy intensive industries."

China: Asia Cement has launched its 2050 decarbonisation strategy, entitled 'Net-Zero Carbon Emissions By 2050 - Asia Cement Advanced Deployment.' The strategy consists of multiple pillars, namely 'alternative fuels,' 'reducing cement's clinker factor,' 'increasing renewable energy reliance' and 'carbon capture.'

During 2022, Asia Cement reduced its limestone, clay, iron and sand consumption by 266,000t, its coal consumption by 17,000t and its gypsum consumption by 56,000t year-on-year. This eliminated 95,100t of CO₂ emissions throughout the year, according to the producer.

Spain: Cementos Tudela Veguín plans to spend more than Euro62.5m on sustainability-enhancing upgrades to its three cement plants in Asturias and one in León. The plans consist of upgrades to fuelling systems that will enable the plants to use biofuels and hydrogen, as well as efficiency upgrades. The La Nueva España newspaper has reported that the producer is seeking to secure European Union (EU) funding for the project. The region of Asturias is eligible for Euro263m-worth of regional decarbonisation funding under the EU's Strategic Project for Economic Recovery and Transformation.

A planned second phase of upgrades will consist of the installation of carbon capture systems at the plants. They emitted 1.67Mt CO₂ in 2022. 1.12Mt (67%) arose from the decarbonisation of limestone and 0.55Mt (33%) came from the combustion of fuel.

Spain: Cemex España has secured Euro4.4m in EU funding for an upgrade to its Alicante cement plant in Valencia. The project will launch the use of Clyngas synthetic gas as alternative fuel (AF) at the plant. Thermochemical conversion specialist WtEnergy, a subsidiary of Cemex Ventures, will supply the syngas. The partners say that this upgrade will reduce CO₂ emissions by 400,000t per decade.

Parent company Cemex said "This project is part of Cemex’s Future in Action programme, which seeks to achieve sustainable excellence through climate action, circularity and natural resource management, with the primary objective of becoming a net-zero CO₂ company."