Displaying items by tag: decarbonisation

Belgium: Gebr. Pfeiffer has received an order for an MVR 5000 R-4 vertical roller mill. The mill is intended for a new 4800t/day line at Holcim Belgique's Obourg cement plant, the site of the GO4ZERO decarbonisation project.

The mill will grind 370t/hr of cement raw material to a fineness of ≤15%R to 0.090mm and reduce moisture content from 4% to <0.7%. The mill is expected to reduce both emissions and specific operating costs.

Chinese contractor CBMI is managing the installation, with commissioning planned for the second half of 2025. The mill will be integrated into the plant's oxyfuel operations to achieve efficiency in the CO₂ capture process.

US: Terra CO₂ has raised US$82m in Series B funding from investors including Eagle Materials, GenZero and Just Climate. The company will build its first commercial facility in Dallas-Fort Worth, Texas, in partnership with Asher Materials.

With the help of Eagle Materials, the company will establish multiple 240,000t/yr plants across North America. The US Department of Energy has also awarded Terra CO₂ with a grant of US$52.6m for a second commercial facility. The producer has begun concrete trials of its Opus Zero cement-free product, designed to completely replace ordinary Portland cement in concrete. It will complete a second funding round in the first quarter of 2025.

“This strategic funding from the world’s leading climate funds and industry partners validates our approach to practical cement decarbonisation at commercial scale,” said Bill Yearsley, CEO of Terra. “As we break ground on our first full-scale plant in Texas, their support enables us to accelerate deployment across North America and establish an early footprint in Europe.”

Europe: Sweden-based SaltX has signed a letter of intent with German engineering firm thyssenkrupp Polysius to collaborate on establishing 100% electric cement production facilities in Europe. The facilities will combine SaltX’s electric arc calciner (EAC) technology with thyssenkrupp Polysius’ material handling solutions.

CEO of SaltX Lina Jorheden said "Strong partnerships are essential for us to effectively implement our technology and reduce millions of tonnes of CO₂ emissions from the industrial sector. Our collaboration with thyssenkrupp Polysius is crucial for developing complementary systems to the EAC technology and building electrified facilities for our customers."

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.

Spain: Molins and Enagás have formalised an agreement to promote their Mosusol netCO₂ carbon capture and storage (CCS) project for EU Innovation Fund backing. The project will capture 1Mt/yr of CO₂ at Molins’ cement plant in Sant Vicenç dels Horts, near Barcelona, to be transported by Enagás for storage. The project will cost an estimated €590m.

Molins CEO Marcos Cela said "The Mosusol netCO₂ Project is an example of our firm commitment to the decarbonisation of the construction sector. Our goal is to achieve carbon neutrality at our Sant Vicenç dels Horts plant by 2031."

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."

Japan: Mitsubishi UBE Cement Corporation (MUCC) has developed a carbon-negative artificial sand product called ‘GX-e Beads.’ It is made from by-products containing calcium and uses a proprietary accelerated carbonation technology developed by MUCC to absorb CO₂ at 80 - 250kg/t from flue gas and other sources. A further granulation and solidification stage is then used to manufacture the final artificial fine aggregates, making it net-carbon negative. The artificial sand can be produced via a dry process at ambient temperature conditions. It requires no special reaction equipment.

The product can be used as a fine aggregate to make normal-strength concrete. MUCC says “…when used in conjunction with ordinary Portland cement (OPC) or blended cement, fresh properties and strength development equivalent to or better than that of normal concrete can be obtained. Therefore, it can be widely applied to ready-mix concrete and secondary concrete products.”

Japan/Australia: Mitsubishi UBE Cement Corporation (MUCC) has invested US$5m in cleantech firm MCi Carbon, becoming the fourth major Japanese investor alongside ITOCHU Corporation, Mizuho Bank and Sumitomo Mitsui Trust Bank.

The partnership includes a collaboration agreement focusing on mineral carbonation technology and a three-way memorandum of understanding with ITOCHU Corporation.

MUCC will utilise MCi's technology to decarbonise cement production in Japan through CO₂ emissions abatement and development of low-carbon materials.

The investment supports the commissioning of MCi's 'Myrtle' mineral carbonation demonstration plant in Australia.

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."

Spain: Holcim, Enagás and gas supplier Saggas have announced the ‘CO2necta’ project, a joint decarbonisation initiative that will capture, transmit and store over 0.56Mt/yr of CO₂. The project will involve the construction of a CO₂ capture plant at Holcim's Sagunto plant in Valencia. Captured CO₂ will be transported through Enagás infrastructure to the Saggas terminal in the Port of Sagunto, where it will be liquefied and then shipped for geological storage.