Displaying items by tag: CO2

Australia: Boral plans to install chlorine bypass technology at its Berrima cement plant in New South Wales. The Illawara Mercury newspaper has reported that the installation will help the plant to double its alternative fuel (AF) substitution rate to 100%. This is one of the ways in which the producer aims to reduce its Scope One and Two emissions by 46% between 2020 and 2030.

Vietnam: Vicem But Son Cement has reported that it now substitutes between 20% and 30% of its fuel with alternative fuel (AF). Viet Nam News has reported that company says that it eliminated 133,000t of CO₂ emissions through AF co-processing in 2021. It has used sewage sludge and industrial waste as sources of AF since September 2019.

Honduras: Cementos Argos is investing US$23m on various projects including increasing its alternative fuels substitution rate. The cement producer is targeting a 12% refuse-derived fuel (RDF) substitution rate by 2030, the equivalent of 5500t/yr. If reached, this will reduce the company’s carbon footprint in the country by 14%. The company says it has also co-processed 1.5m waste tyres in Honduras. It has now signed a partnership agreement with Fundesur and Fundación Herco for the collection and delivery of 5,000 tires/month in Choluteca for co-processing.

Other projects Cementos Argos is working on include increasing the production capacity of its Piedras Azules cement plant and increasing the plant’s use of solar energy.

France: Germany-based ThyssenKrupp has won a contract for the installation of a new 4000t/day clinker line at Ciments Calcia’s Airvault cement plant in Poitou-Charentes. The supplier expects the new line to double the plant’s clinker capacity while also reducing its CO₂ emissions. It is intended to replace the two existing lines at the site.

ThyssenKrupp will supply a 1200t/hr double-shaft hammer crusher, a longitudinal blending bed, a 370t/hr Quadropol QMR² 45/23 type vertical roller mill and a 10,000t tangential blending silo to process raw materials for the line. A single-string, five-stage Dopol type cyclone preheater with integral calciner will be supplied that is suitable to use with alternative fuels, with the possibility of conversion to oxyfuel in future. ThyssenKrupp plans to preassemble the preheater, reducing anticipated construction time ‘by several months.’ The plant also includes a Polytrack clinker cooler, a solid recovered fuel (SRF) preparation line and dedusting systems. Commissioning is scheduled for mid-2024.

No value for the project has been disclosed by Ciments Calcia or ThyssenKrupp. However, Ciments Calcia previously announced a proposed investment of Euro300m in January 2021.

Canada: St Mary’s Cement plans to apply for a licence to substitute alternative fuel (AF) for a part of its coal, gas and petcoke fuel mix. The plant previously held a two-week AF substitution trial in May 2011. CBC News has reported that the subsidiary of Votorantim Cimentos will present its plan at an evening meeting for the general public on 18 November 2021. The company says that it plans to implement similar AF arrangements to those at its Bowmanville plant, where it uses 90,000t/yr of biomass, wood from construction and demolition and non-recyclable paper and plastics.

Environmental manager Ruben Plaza said "Lower CO₂ emissions is the first consideration and, equally as important, the material has to be approved and available in sufficient quantities with a reliable and sustainable long-term supply."

Philippines: Holcim Philippines and its waste management subsidiary Geocycle have together inaugurated a waste processing plant and alternative fuels (AF) storage facility at the former’s Bulacan cement plant. The facilities consist of municipal solid waste (MSW) shredding equipment and a 5400m² warehouse. The installation is part of a US$2.41m investment by Holcim Philippines in the Bulacan plant, aimed at reducing its CO₂ footprint and increasing the circularity of its operations. The plant will produce its AF from MSW from the Boac municipality.

President and CEO Horia Adrian said “This initiative is part of our bigger commitment to make our operations more sustainable. These facilities will further reduce our carbon footprint and energy costs, while providing our partners with a safe and environmentally sound waste management option though our co-processing technology. We are excited to continue these projects to help us get closer to our long-term ambition of using 70% AF in cement production, instead of coal."

India: JK Cement has signed a strategic memorandum of understanding (MoU) with Punjab Renewable Energy Systems (PRESPL). Under the agreement, PRESPL will supply its technologies and forward-integrated value chain for use by JK Cement in scaling up alternative fuel (AF) substitution at its cement plants. The transition will focus on biomass-based fuel use.

Managing director Raghavpat Singhania said "As we embark on our journey towards decarbonisation, we commit to this MoU that allows us and PRESPL to build deeper synergies in the bio-energy sector.” He added that the agreement promised ‘a better future with a win-win for the environment, people and energy in India.’

Taiwan: Taiwan Cement has commenced the construction of a US$143m waste processing plant and ecopark at its 1.6Mt/yr Hualien cement plant. Japan-based Kawasaki Heavy Industries provided the design for the facility and visitor attraction. When commissioned, the plant will supply the Hualien cement plant with 200t/day of refuse-derived fuel (RDF) produced from municipal solid waste from Hualien. Taiwan Cement estimates that the move will eliminate 40,000t/yr of CO₂ emissions from the plant’s operations.

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 the 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.”