Displaying items by tag: CO2

Russia: Holcim Russia has committed to realising a 15% CO2 emissions reduction in its cement production between 2019 and 2030 to 475kg/t from 561kg/t. It plans to further reduce its cement’s CO2 emissions to 453kg/t by 2050, and to implement further measures to ensure its net carbon neutrality at that time.

Corporate relations director Vitaly Bogachenko said “The company's goal is to drastically reduce carbon emissions, and there are two working solutions for this. The first is the use of alternative fuels (AF) obtained from different types of waste: residues of municipal solid waste after sorting and extraction of all useful fractions from them, used tyres and others. The presence of biomass in them makes such fuels carbon neutral, so emissions during production are significantly reduced. The second solution is to replace carbon-intensive raw materials. For example, instead of limestone, we use slags. The 'recipe' for cement is completely different: thanks to the new composition and the lower temperature during the firing process, the carbon footprint in the production of cement is reduced.”

UK: The Mineral Products Association (MPA) has announced the successful completion of a trial of cement production using a net-zero fuel mix consisting of hydrogen and refuse-derived fuel (RDF) at Hanson’s Ribblesdale, Lancashire, cement plant. The RDF in the mix consists of meat and bone meal (MBM) from the food industry and glycerol from biodiesel production.

Increased alternative fuel (AF) substitution is one of seven key levers in the MPA’s Roadmap Beyond Net Zero emissions reduction strategy. The association says that the fuel will eliminate 180,000t/yr of CO₂ emissions from the Ribblesdale plant’s operations when fully implemented. The project received Euro3.71m in government funding.

Hanson’s environmental sustainability manager Iain Walpole said “We are delighted to be involved with this world-leading project, which is a further example of our commitment to cutting CO₂ emissions.” He added “It will also contribute to our ambition of supplying net zero carbon concrete by 2050.”

New Zealand: Golden Bay Cement has commissioned a waste tyre feeding line at its Golden Bay integrated cement plant in Northland. The producer will cut CO₂ emissions by 13,000t/yr by substituting tyres for coal. It will eliminate the 5000t/yr of iron sands used in production and reduce coal use by 15%. The New Zealand government’s Waste Minimisation Fund supplied US$11.2m towards the US$17.5m project.

Government environment minister David Parker told Live News, "This innovative project is a win-win-win for the environment. It reduces a significant waste problem, reuses a valuable resource, and reduces carbon emissions by about 13,000t/yr.” He added that the line, "will divert from landfill or stockpiles about 42% of the estimated 3m waste tyres in Auckland each year. New Zealand needs to address its longstanding problem with waste so we can become the low-waste, low-emissions economy we need to be. "

Hungary: Italy-based Entsorga has completed the installation of an automated alternative fuel (AF) line at a Hungarian cement plant. The plant is believed to be Nostra Cement’s 1.0Mt/yr integrated Kiralyegyháza cement plant, which in early 2020 received an AF fuel store expansion aimed at bringing AF substitution rates to 80% from 60%. The upgrade consists of an Entsorga Spider crane and Pelican power system which will be able to maintain a continuous feed to the plant’s calcination system 24 hours a day.

Entsorga CEO Francesco Galanzino said, “Bringing a commission to a successful conclusion in the middle of the maximum intensity period of the coronavirus crisis has been a great satisfaction. The cement plant will make significant savings in CO₂ emissions.”

Spain: A 25% alternative fuel (AF) substitution rate has accounted for a 9650t reduction in CO₂ emissions at Cementos Cosmos’ 0.7Mt/yr Oural, Galicia plant, lowering the specific CO2 emissions of its clinker by 45kg/t. A main constituent of the AF mix was olive stones. Cementos Cosmos Oural plant managing director Jaime Santoalla said, “At Cementos Cosmos, we accept our responsibility to meet the global objectives of reducing greenhouse gas emissions.”

Germany: Joule, a producer of liquid fuels from recycled CO₂, and HeidelbergCement have announced a partnership to explore the application of Joule's technology to mitigate carbon emissions in cement manufacturing. A successful partnership between Joule and HeidelbergCement could result in the co-location of Joule's Helioculture Technology at one or more HeidelbergCement sites around the world.

Since 1990, HeidelbergCement has worked to decrease its carbon emissions, initiating various programmes across the organisation that have reduced emissions by 23%. HeidelbergCement said that its partnership with Joule represents another example of its sustained dedication to leveraging innovative technologies and programmes for climate protection. As part of the agreement, emissions from various HeidelbergCement plants could provide Joule with the waste CO₂ required to feed its advanced Helioculture platform that effectively recycles CO₂ back into fuel.

"We've been focused on lowering carbon emissions for more than two decades and we are excited to take further steps to lower our CO₂ emissions by working with a dedicated organisation with state-of-the-art technology that is committed to protecting the climate," said Jan Theulen, Director of Alternative Resources at HeidelbergCement. "Joule's process, which effectively recycles waste CO₂ into liquid fuels, is a perfect match for HeidelbergCement and our core values and we look forward to starting the journey towards a long-term, mutually beneficial relationship."

Joule's Helioculture process directly and continuously converts sunlight and waste CO₂ into infrastructure-ready fuels, including ethanol and alkanes that serve as highly blendable feedstock for diesel and jet fuel products. Only requiring abundantly available inputs, including sunlight, brackish or sea water and waste CO₂, the process is well suited for global deployment. For organisations like HeidelbergCement, Joule turns a carbon challenge into a carbon solution by capturing and recycling waste CO₂.

"Carbon emissions are a challenge faced by many industries that are of critical importance to everyday life, such as cement," said Brian Baynes, CEO of Joule. "We are pleased to have the opportunity to partner with HeidelbergCement in an attempt to develop a modern, ultra-low carbon cement manufacturing process."

Egypt: According to Reuters, Arabian Cement Company has commissioned new alternative fuel processing machinery at its plant in Suez.

The state-of-the-art FLSmidth HOTDISC^TM allows Arabian Cement's plant to rely completely on coal and alternative fuels to run its operations. Moreover, it enables the plant to operate its kilns using alternative fuel materials directly, without the need to pre-treat them. Arabian Cement now has a designed fuel mix of 70% coal and 30% alternative fuels. The alternative fuel that will be used will be a mixture of agricultural wastes, municipal sludge and refuse-derived fuels (RDF). Alternative fuel use is expected to result in around 60,000t/yr of reduced CO₂ emissions.