Displaying items by tag: Emissions

Mexico: Cemex says that it has received validation from the Science-Based Targets Initiative (SBTi) for its 2050 Net Zero Roadmap. The roadmap sets out strategies, including carbon capture, for ‘aggressive CO₂ reductions’ across Cemex’s entire value chain, in order to achieve carbon neutral cement production by 2050. The group’s current carbon capture projects portfolio has the potential to reduce its CO₂ emissions by 3Mt/yr.

Cemex CEO Fernando González said “The construction industry is essential to the development and wellbeing of society, and its transition to carbon neutrality is achievable. The SBTi’s validation of our decarbonisation target attests to this, as well as the strength of our commitment.”

Brazil: Votorantim Cimentos has revised its Scope 1 CO₂ emissions reduction goal down to 475kg/t of cementitious product by 2030, from 520kg/t previously. The new target is 8.7% lower than the previous one, which it set in November 2020. Votorantim Cimentos previously reduced its emissions per tonne by 20% between 1990 and 2021. The group's targeted reduction from a 2018 base year now equates to 25%. The Science-Based Targets Initiative (SBTi) validated the ambitious target on 1 December 2022.

Votorantim Cimentos expects to achieve its aim through increased alternative fuel (AF) co-processing, substitution of supplementary cementitious materials, improved efficiency and use of renewable power and the development of new technologies, including carbon capture.

The group's global sustainability, institutional relations, product development and engineering director Álvaro Lorenz said “The fight against the negative effects of climate change is at the heart of our strategy and reflects our focus on competitiveness and on creating a positive legacy. The most competitive businesses will be those with the lowest greenhouse gas emissions. After all, the environmental crisis is also an economic and social crisis. The validation of our new target by SBTi reinforces our commitment and continuous efforts toward the net-zero agenda.”

Peru: Cemento Gloria subsidiary Cemento Yura's Yura cement plant has allegedly been the source of intermittent dust emissions, water contamination and destructive vibrations during its 50 years of operation. In May 2022, local authorities declared four houses uninhabitable due to cracks in walls and roof collapses. Local people have attributed the damage to the vibrations from the Yura cement plant's activities. In November 2022, local water supply is unavailable for over 40 minutes every day, allegedly also due to the plant's operations.

The La República newspaper has reported that Yura residents have launched a protest against the alleged environmental mismanagement outside of the company's plant.

Ireland: Ecocem has announced the launch of ACT, an alternative materials-based cement ingredient capable of reducing the CO₂ emissions of cement production by 70%. The developer says that any existing cement plant can produce ACT at comparatively low cost. The technology is globally scalable, and Ecocem expects to achieve full commercial availability across its Benelux, France, Ireland and UK markets by 2025.

Ecocem managing director Donal O’Riain said “We are eager to work closely with the cement industry and with policymakers to support the scaling and development of a new generation of low-carbon cements. Current policy priorities on decarbonising cement have now been overtaken by technology. Fully effective deployment of ACT requires policymakers to provide effective support well beyond their traditional emphasis on CCUS as the core cement decarbonisation technology.”

Ecocem's investors include France-based building products company Saint-Gobain and US-based Breakthrough Energy Investments.

UK: Hanson has announced a 'carbon capture breakthrough' in its use of recycled concrete paste (RCP) in the wet scrubber of its Ribblesdale cement plant in Lancashire. In under 30 minutes, 15t of RCP was able to capture 1.5t of CO₂ from the plant's flue emissions. Carbonated RCP is suitable to replace limestone in cement production.

Hanson's sustainability director Marian Garfield said “The trial was carried out with our parent company Heidelberg Materials’ research and development team, and marks another important milestone in our carbon capture journey."

Mexico: Cemex has announced a raft of new carbon capture projects in Europe and North America. When commissioned, they will bring its total installed CO₂ capture capacity to over 3Mt/yr. The projects consist of three front-end engineering (FEED) studies to scale installations of Australia-based Leilac’s direct separation technology at Cemex cement plants in Germany, Poland and the US; a fourth FEED study for 95% capture installation at the Balcones, Texas, cement plant using RTI International's solvent capture technology and a development partnership for the cement industry's most comprehensive carbon capture, utilisation and storage (CCUS) studies at eight further cement plants in Europe, Mexico and the US.

Chief executive officer Fernando González said “CCUS brings together the essence of our strategic priorities: sustainability and innovation. Our Future in Action programme to achieve sustainable excellence and become a net-zero company is all about measurable, verified progress towards the most ambitious decarbonisation pathway in the industry. Although CCUS technologies are not ready to be scaled quite yet, it will take relentless work and innovation to ensure their viability in time to avoid the most damaging effects of climate change.”

US: The Alabama Department of Environmental Management (ADEM) has ordered Holcim US to pay a US$100,000 fine for alleged fugitive dust emissions from its Theodore cement plant in Mobile. Between February and August 2022, witnesses reported multiple dust plumes sighted above the plant, which is situated on the Theodore canal. AL.Com News has reported that, while neither admitting or denying the contentions, Holcim US said that it has taken actions affecting its raw materials unloading processes to ensure compliance.

Plant manager Clay Copeland said “We have worked closely with the ADEM to address concerns raised earlier this year."

Sweden: Germany-based KIMA Process Control has secured a contract for the supply of a kiln shell cooling system for Cementa's Slite cement plant in Gotland. 88 water jets will deliver centimetre-precision cooling for the 55m-long kiln, while IR pyrometers measure temperatures over areas of 10cm². According to KIMA Process Control, the equipment can avoid unnecessary cooling of the kiln shell, conserving the heat energy supplied by the main burner.

The new cooling system will eliminate the use of energy intensive electric fans, slashing 1700t/yr in CO₂ emissions, according to the supplier. It said that noise emissions will also 'drastically' decline as a result of the upgrade. The system's operating costs are reportedly 98% less than those of the plant's existing fan system.

The supplier said that the new equipment will 'bring the cement plant in Slite an economic benefit in the shortest possible time.' It said "For the cement industry, this project represents a new milestone in terms of best available technology in the operation of rotary kilns."

Singapore: Parliament passed the Carbon Pricing (Amendment) Bill earlier in November 2022. Under the act, Singapore will raise the price of carbon credits to US$18.17/t from 2024, and to US$32.71/t from 2026. CNA News has reported that the government said that the new legislation will provide the basis for the realisation of carbon credit prices of over US$36.31/t by 2030, in line with the country's 2050 net zero CO2 emissions commitment.

Polluters which emit over 25,000t/yr of CO₂ currently pay US$3.65/t for carbon credits.

Saudi Arabia: Yanbu Cement was among successful bidders in Saudi Arabia's largest carbon credit auction to date earlier in November 2022. The Saudi Public Investment Fund (PIF)’s Voluntary Carbon Market Initiative Auction sold 1.4Mt-worth of carbon credits to 15 different entities, of which Yanbu Cement was the only cement sector representative. The PIF said that the sale will support the country's Saudi Vision 2030 development goal, while also advancing its progress towards net zero CO₂ emissions by 2060.