Displaying items by tag: Biomass

Kenya: East African Portland Cement (EAPC) has contracted a technical audit from Denmark-based FLSmidth Cement with a value of just under US$70m. EAPC’s acting managing director Mohamed Osman said the findings would guide a pending plant upgrade, to be funded by some of the proceeds from the land sale, according to the Star newspaper. It hopes to double capacity at the unit by the late 2020s without incurring debt. The cement producer is also considering its options to use alternative fuels such as macadamia husks and other agricultural biomass. The 10-week audit process is expected to end in early December 2024.

Osman said “We have tapped FLSmidth to undertake a comprehensive technical audit of the plant, which will assess how to maximise the capacity and inform the design and cost of a new one,'' Osman said. “The audit by FLSmidth will also look at the reserves of raw materials that it has and inform whether it needs to acquire more land that has adequate reserves.”

UK: Alternative fuel manufacturer WKE has expanded its product range with new pellet sizes, including 9mm and 6mm shortcut pellets for extended burn times and reduced leftover material in cement kilns, and a 16mm pellet for the biomass sector. This development aims to address specific industry challenges and meet growing demand in both UK and international markets.

CEO Ian Jones said "Our new range of pellet sizes represent a significant step forward in our mission to provide a cleaner, greener and cost-effective alternative to fossil fuels. By tailoring our products to meet the bespoke needs of sectors like cement, we can further support these heavy energy-use industries in reducing their dependence on fossil fuels, all while cutting their energy costs and tackling the enormous amount of material that ends up in landfill."

Indonesia: Indocement Tunggal Prakarsa has acquired a 20% stake in Amita Prakarsa Hijau, a company that specialises in the recycling of industrial and municipal refuse and biomass-derived materials into alternative fuel for the cement industry. The deal is valued at US$120,000 and was completed on 8 October 2024.

Mexico: Regenera, a subsidiary of Cemex, has launched a pilot project at its Broquers Ambiental plant in Querétaro to transform the city’s organic waste into alternative fuel using a drying process known as ‘biosecado’. This initiative makes Querétaro the first zero waste municipality in Mexico, according to the company. The plant now processes almost 90% of the municipality’s waste, transforming over 8000t monthly into biomass to reduce the amount of material sent to landfill.

Vice president of urban solutions at Cemex Mexico, Antonio Balmori, said "This project that we started today at our Broquers Ambiental plant excites me very much because it will take the city of Querétaro to the next level in waste management, where we will seek to take advantage of 100% of the urban solid waste generated in the municipality."

Spain: The Cemex plant in Alcanar has been granted €3m from the PERTE project for industrial decarbonisation, facilitated by the Ministry of Industry. This subsidy is part of a broader initiative involving 19 projects with a total aid of €96m under Line 1 of the programme. Cemex aims to contribute to decarbonisation of the clinker production process at its Alcanar facility by centralising compressed air production to enhance energy efficiency, replacing 14 old compressors with two more powerful and efficient units. The plant also plans to increase the use of alternative fuels in clinker production by integrating waste-derived and biomass fuels.

Tanzania: Huaxin Cement Tanzania Maweni Company has commissioned a new 4000t/day clinker line at its Mavini cement plant, after completing the Phase 2 of the plant’s construction. China Industrial and Economic Information Database has reported that this phase of construction commenced in August 2022. The new line is equipped with a 15MW biomass-fired power plant.

During the 14th Five-Year Plan (2021 – 2025), Huaxin Cement aims to quadruple its production capacity outside of China to 16.5Mt/yr. 6.07Mt/yr-worth of this will come online in 2024 and 2025. The company says that its strategy partly reflects the slowing of its domestic market since 2022.

Spain: Cemex España has announced its participation in the HYIELD consortium, which plans to build a waste-to-hydrogen demonstration plant at the producer’s Alcanar cement plant in Catalonia. The demonstration plant will process a total of 2000t of biogenic waste to produce 400t of green hydrogen for use as fuel, fertiliser and for other applications. The trial commands Euro10m in funding from the EU’s research and innovation funding programme Horizon Europe. Parent company Cemex believes that the technology being demonstrated at Alcanar has the potential to process 300Mt/yr of waste across Europe and produce 30Mt/yr of hydrogen.

Cemex’s Europe, Middle East and Africa regional president Sergio Menendez said “As part of its drive towards reaching net zero by 2050, Cemex is committed to partnering with like-minded organisations to explore the very latest innovations in more sustainable technology that can support the cement production process. We are proud to provide one of our cement plants in Spain as the location for the HYIELD trial and excited to see the outcomes from this research and development project.”

Cemex highlighted its Clyngas project at its Alicante cement plant in Spain this week. The project will produce synthesis gas (syngas) from different types of waste for direct injection into the burner at the plant during the combustion process. It is being run in conjunction with Waste to Energy Advanced Solutions (WTEnergy), a company that Cemex invested in at the end of 2022. It is also receiving Euro4.4m in funding from the European Commission (EC) as part of its innovation fund for small scale projects. The initiative estimates that it will save over 400,000t of equivalent CO₂ during the first 10 years of the project's life by replacing petroleum coke with syngas.

Clyngas is another example of Cemex’s innovation with alternative fuels for cement and lime. It follows on from the group’s work with hydrogen injection into cement kilns. As presented at the 15th Global CemFuels Conference 2022 it has been using hydrogen in low volumes as a combustion enhancer in more than 20 plants worldwide. However, it was also looking into using hydrogen more directly as a fuel and as a feedstock for other alternative fuels. WTEnergy’s gasification process could potentially link up to this as it converts waste streams such as wood chips, agricultural waste, refuse derived fuel (RDF), solid recovered fuel (SRF), dry sewage sludge, meat and bone meal, poultry litter and plastics into syngas. WTEnergy then proposes that its gasification process and/or the syngas can be used for power generation and thermal applications. In the case of the Clyngas project it will be the latter, as the gasification process will be used to boost the burnability characteristics of RDF with a high biomass content. One part of this to note is that the syngas can potentially be used to manufacture hydrogen. This would be a useful capability for a cement company, for example, that was already using alternative fuels and was now considering further decarbonisation by switching to using hydrogen.

A few other cement companies have been looking at synthetic fuels too, but this has generally been as a by-product of carbon capture and utilisation. This week Lafarge France, for example, said it had signed a memorandum of understanding with Axens, EDF and IFP Energies Nouvelles for a synthetic fuel production trial. Its plan is to build a unit that will produce synthetic kerosene using captured CO₂ from a carbon capture installation at Lafarge France's Saint-Pierre-La-Cour cement plant. The kerosene will then be sold to airlines. Other examples of cement companies looking at using captured CO₂ to manufacture synthetic fuels include Finnsementti’s pre-engineering study with Aker Carbon Capture to consider producing methanol as a fuel for transport, Holcim’s and TotalEnergies’ various plans of what to do with the CO₂ captured from the-to-be upgraded Obourg cement plant and Cemex Deutschland’s ambitions for its Rüdersdorf plant.

As can be seen above there are different types of synthetic fuels and cement companies are at the research and pilot stages. Although there isn’t a commonly accepted definition of what a synthetic fuel is, the general meaning is that of a fuel made from feedstock using a chemical reaction as opposed to, say, a refining process. The wide variety of potential synthetic fuels puts the confusion over the different types of hydrogen into perspective. However, this may be a problem for a later date if usage by cement companies becomes more serious.

What is a problem, though, has been the EC’s planned legislation to phase out the use of industrial CO₂ in synthetic fuels by 2041. Cembureau, the European cement industry association, warned in late 2022 of the issues this would pose for industries trying to find a way to utilise their CO₂ emissions where storage was too difficult or expensive. Its view was that while synthetic fuels using industrial CO₂ are not fully net-zero, as the captured CO₂ is later released into the atmosphere, it is a necessary short to medium term step for sectors trying to make the transition. Companies trying to build industrial-scale chemical plants for synthetic fuels need running periods of 20 to 30 years to achieve payback. As of March 2023 Cembureau was still concerned about the implication of proposed regulations, specifically with regards to the proposed criteria for which synthetic fuels could be used, based on their greenhouse gas emissions savings (at least 70% compared to the regular fuels being replaced). It directly linked this to synthetic fuels projects being launched by the cement sector that might be adversely affected by the new rules. The EC published the legislation in late June 2023 and it is set to become legal in mid-July 2023.

Using synthetic fuels either as a fuel or a by-product from cement production is an area of interest currently with the projects detailed above and others in progress. One vision for their use in Europe, at least, is that they might offer a route for carbon capture for cement plants without access to the logistic networks necessary for sequestration. Whether they find a place in cement manufacture either on a transitional basis or over a longer term should become clearer over the coming decade. Yet the EC’s new rules are likely to slow this process down as at least some of the planned pilots may become unviable in Europe. Other jurisdictions around the world take note.

UK: Mineral Products Association Lime (MPA Lime), the body representing the UK lime sector, has launched the Net Negative 2040 Roadmap. The association said that the roadmap sets out the strategy for its to 'go beyond net zero' by 2040. The industry will rely on the deployment of fuel switching, carbon capture, renewable energy sources and green transport technologies, among other approaches. It called on the government to support its aims through the implementation of carbon accounting, subsidisation of renewables and decarbonisation technologies, the development of green hydrogen infrastructure, ensuring that UK lime can remain competitive in the UK and overseas markets.

MPA Lime director Mike Haynes said “Each lever will contribute to decarbonisation – many initiatives are happening already or will come on stream this decade." He added "The combination of using biomass fuels with carbon capture and lime product carbonation will result in removal of 250,000t/yr of atmospheric CO₂, making the sector net negative overall. Other levers, especially indirect emissions and transportation, require broader collaboration and enabling action by government and other industries.”

Through their actions to date, MPA Lime members reduced their absolute CO₂ emissions by 25% between 2005 and 2022.

Sweden: Nordkalk has produced lime at its Koping lime plant using 30% biofuel as alternative fuel (AF). The producer now aims to increase the substitution rate to 50%. Nordkalk subsidiary Kalkproduktion Storugns recently began trialling 100% liquid biofuel substitution in continuous operations at its Larbro lime plant. ENP Newswire has reported that both projects are part of a CO₂ emissions reduction initiative in partnership with the Swedish Energy Agency and Umea University.