Displaying items by tag: Emissions

US: Supplementary cementitious materials (SCM) producer Eco Material Technologies has published its 2024 Sustainability Report, detailing the measures it has employed to reduce its environmental impact over the year. The producer said that its SCM displaced 5% of US cement consumption, avoiding 5.5Mt of CO₂ emissions. The company diverted 6.2Mt of ash from landfill and harvested a further 0.5Mt, reducing water use by 7.57bn litres compared to conventional materials. It produced 73,292t of ‘green’ cement, avoiding over 65,000t of CO₂, and aims to double recycled material use to 20Mt by 2030.

Chief executive officer Grant Quasha said “We're proving that domestic fly ash is not only a powerful climate solution, but also a resilient and scalable one. The infrastructure transformation is already underway, and we're proud to be leading it.”

Eco Material Technologies operates 125 sites in 42 states and employs 1100 people.

Norway: thyssenkrupp Polysius will supply the kiln system for SMA Mineral’s quicklime plant, designed to operate without CO₂ emissions using SaltX’s electric calcination technology. The pilot facility is scheduled for completion in 2027, and will produce 40,000t/yr of quicklime. The project has received €24m in funding from Norwegian state enterprise Enova.

thyssenkrupp Polysius CEO Christian Myland said “We are proud to contribute to this landmark project that sets a new standard for sustainable lime production. Our collaboration with SMA Mineral and SaltX Technology demonstrates how industrial partnerships can accelerate the transition to net-zero emissions. This project is a testament to our commitment to engineering solutions that drive decarbonisation.”

The partnership between SaltX Technology and thyssenkrupp Polysius follows the signing of a Letter of Intent in February 2025.

Costa Rica: Holcim Costa Rica has issued its first sustainability report, which states that it reduced CO₂ emissions by 19% between 2018 and 2024. During the last year, the company prevented the release of more than 4600t of CO₂ thanks to improvements in thermal efficiency. It also processed more than 72,000t of municipal and industrial waste as energy or alternative fuel in cement production and reused more than 90% of the industrial water consumed at its cement plant. It reported that it has reached gender equality within its executive team, with 50% female and 50% male leadership.

Holcim Costa Rica’s 2030 goals include achieving a 32% reduction in primary CO₂ emissions from cement plant operations, a 5% reduction in electricity consumption and a 21% reduction in logistics emissions, while reaching a net positive impact on biodiversity, and reducing the use of fresh water.

Togo: Cement producers in Togo have committed to reduce CO₂ emissions by 2050 by lowering the clinker factor and increasing the use of alternative fuels. At a meeting in Lomé on 30 June 2025, manufacturers set out a roadmap that includes large-scale adoption of limestone calcined clay cement (LC3) to reduce clinker content from 65% to 40%, potentially cutting emissions by up to 40% without sacrificing performance, according to the Togo First newspaper.

The strategy also involves replacing coal with agricultural or municipal waste. Industry data shows that cement production generated 0.9Mt of CO₂ in 2023, which could rise to 1.8Mt by 2050 without intervention. Manufacturers are seeking regulatory support to help deliver the roadmap, which aligns with Togo’s Paris Agreement commitments.

China: NovaAlgoma Cement Carriers (NACC) has placed another order for a HeatPower 300 waste heat recovery system from Climeon on a second cement carrier, to be built at Zhejiang Xinle Shipbuilding Co. and delivered in 2027.

The 38,000t vessel will run exclusively on green methanol and is expected to cut CO₂ emissions by over 60% compared to conventional vessels, reportedly avoiding around 180,000t of CO₂ emissions over 10 years. The HeatPower 300 will generate up to 300kW of carbon-free electricity from engine cooling water and exhaust gases.

Malaysia: Cementir Group subsidiary Aalborg Portland Malaysia has launched CEM II/A-LL 52.5N with 12% lower CO₂ emissions compared to Aalborg White CEM I 52.5N. The product, part of the D-Carb family, maintains high and consistent early-age performance and is aimed at supporting industrial decarbonisation. It will be distributed primarily in Australia, with further availability across Asia.

Aalborg Portland APAC managing director Fabrizio Piero Carraro said “The demand for low carbon white cement is rapidly increasing across APAC markets, particularly in more mature markets like Australia. This growth is being driven by clear policy direction, defined industrial decarbonisation targets and rising environmental awareness among industry players. As a result, we are seeing a strong shift toward white cement solutions that offer both reduced carbon emissions and high performance.”

UK: Material Evolution has secured a venture debt facility from HSBC Innovation Banking UK to support the development and scaling of its ‘ultra-low CO₂’ cement technology.

The producer uses alkali fusion and AI-powered design to manufacture its MevoCem product, which the company says reduces CO₂ emissions by up to 85% compared to ordinary Portland cement. The venture debt facility will reportedly be used to help ‘grow the company’s commercial traction’, according to a press release.

Spain: Molins has received permits from the Generalitat de Catalunya to begin operating an auxiliary hydrogen generation facility at its Sant Vicenç dels Horts cement plant in Barcelona.

The producer will install a hydrogen production module based on water electrolysis, using water from subway catchments. The system includes osmosis treatment to purify the water prior to splitting it into hydrogen and oxygen using renewable electricity. The hydrogen will be consumed directly as fuel in the clinker kiln, replacing part of the petcoke currently used to reduce CO₂ emissions.

Molins forecasts hydrogen consumption of 305t/yr and expects to cut CO₂ emissions by 3600t/yr. The company said the project supports its Sustainability Roadmap 2030, which targets a 20% reduction in emissions by 2030 compared to 2020.

Vietnam: The government will allocate greenhouse gas emission quotas to cement and steel plants and thermal power facilities by 31 December 2025, following a new decree issued on 9 June 2025, which takes effect on 1 August 2025. These facilities will receive quotas during the 2025–2026 period. The Ministry of Agriculture and Environment, in coordination with the ministries of industry and trade and construction, will lead the pilot proposal process and submit total allowable emissions to the prime minister for approval. Quotas for each plant must be finalised by the end of 2025. From 2027, ministries will propose lists of facilities and quotas for 2027–2028 and 2029–2030, with submissions due by 30 June of the first year of each period. The Ministry of Agriculture and Environment will allocate quotas by 31 October annually once approved.

Quotas will be based on emission intensity per unit of product, industry growth targets and each facility’s potential to reduce emissions. Facilities may trade quotas and carbon credits on the national market. The decree also revises rules on trading, borrowing, transferring and surrendering quotas. Facilities must surrender quotas equal to verified emissions, minus carbon credit offsets, by 31 December following each compliance period. Penalties and future deductions will apply to those who fail.

US: Ozinga has broken ground on a 1Mt/yr alternative cement grinding plant in East Chicago, Indiana. The plant is equipped with a Gebr. Pfeiffer MVR5300-C6 vertical roller mill. It will produce ASTM C989-compliant slag cement and other blended cements. When operational in 2026, it will be the largest of its kind in North America, and avoid 700,000t/yr of CO₂ emissions from conventional cement production. Its location offers strategic rail, road and shipping access to large markets in the US and Canada.

East Chicago Mayor Anthony Copeland welcomed an anticipated 150 new jobs resulting from construction and subsequent operations at the plant.