Displaying items by tag: CO2

China: The government plans to implement a benchmark level of energy efficiency for cement plants by 2025 in order to realise its national goal of no CO₂ emissions growth by 2030 and carbon neutrality by 2060. Local press has reported that the government has yet to set a specific benchmark for the cement industry. The corresponding figure for aluminium production will be 13,000kWh/t.

UK: The government has awarded funding to the planned HyNet North West low-CO₂ industrial cluster. The cluster will reduce industrial CO₂ emissions by 10Mt/yr in North Wales and North West England. It includes a planned 800,000t/yr carbon capture installation at Hanson UK’s Padeswood cement plant in Flintshire. The producer is currently carrying out a feasibility study at the plant. Parent company HeidelbergCement said that the project will play a ‘critical role’ in the UK’s transition to net zero CO₂ emissions by 2050.

Chair Dominik von Achten called the decision “A well-deserved recognition for the HyNet consortium and our colleagues working on carbon capture and storage (CCS) in the UK as part of this collaborative project. Cutting CO₂ emissions is a key priority for us, and we are delighted to add our Padeswood cement works to our growing range of CCS activities, as a key part of our pathway to reaching net zero.”

Germany: Holcim Deutschland has signed a memorandum of understanding with Cool Planet Technologies (CPT) to build a pilot CO₂ capture unit at Holcim’s Höver cement works, near Hannover, based on Hereon’s PolyActive membrane technology. The objective of the unit is to demonstrate the performance, economics and operability of the capture technology at scale. Following this the partners will seek to establish a framework for the technology’s implementation in Holcim’s other cement plants in Germany.

Initial tests are scheduled to commence in the first quarter of 2022 with the first phase of the project, capturing 5600t/yr of CO₂, scheduled for start-up in the second quarter of 2023. If successful, it is planned to expand the unit in two further phases capturing 170,000t/yr and 1.3Mt/yr starting-up in 2024 and 2026 respectively. The final phase will capture over 90% of the carbon dioxide emissions from the Höver plant and deliver the CO₂ in high-purity liquid form for use or sequestration.

CPT is working with Hereon, part of the Helmholtz Association of Research Centres, Germany’s largest research organisation, to commercialise their PolyActive membrane technology after a decade of development. This technology is designed to capture CO₂ from carbon rich gas streams and has already been technically proven in the laboratory and piloted in two coal-fired power stations.

France: Vicat says it aims to start cultivating spirulina at its Montalieu-Vercieu cement plant in the summer of 2022 as part of its Cimentalgue project. It plans to grow 1t/yr until 2024 as part of a trial looking at volume and quality, according to the Agence France Presse. It will use CO₂ and waste heat from the plant to grow the cyanobacteria that can be used as a food source.

The project is being conducted with Algosource and the GEPEA (Process Engineering for Environment and Food) laboratory at the University of Nantes. TotalEnergies is also involved as a financial backer. The project has a budget of Euro2m and is also supported by the Environment and Energy Management Agency (ADEME).

Sweden: Cementa has announced that its Stockholm cement terminal will no longer receive deliveries of its Slite brand cement and will instead begin solely stocking the company’s fly ash cement from 1 December 2021. The producer says that the transition will reduce the carbon footprint of the terminal’s products by 30,000t/yr. Slite cement will continue to be available from the nearby Köping and Oxelösund cement terminals.

Russia: Krasnoyarsk Cement has installed a continuous monitoring system for emission control at its Krasnoyarsk cement plant. It carried out the upgrade under the government’s national Ecology project. The system will transmit daily average emissions data to the Krasnoyarsk Territory Ministry of Ecology and Nature Management. Members of the public will be able to access the submissions on the ministry’s website.

Managing Director Dmitry Kireev said “According to the current legislation, the installation was supposed to start working before 31 December 2028. However, due to the fact that the enterprise is located within the city, we voluntarily assumed increased obligations and launched online monitoring of emissions ahead of schedule."

Spain/Norway: A team from Cartagen Polytechnic and Ostfold University College has demonstrated that Cementos La Cruz could reduce the cost of its concrete production by Euro1.45/m3, or Euro29,000/month by curing concrete with captured CO₂. EuropaPress has reported that the use of CO₂ would reduce the amount of cement required by 7 – 8%. This in turn would remove an estimated 4.6% of CO₂ from the concrete’s production.

Greece: Titan Cement has signed the Science-Based Targets Initiative (SBTi)’s Business Ambition for 1.5°C pledge. In so doing, it joins the UN’s Race to Zero campaign for collaboration towards a global zero-CO₂ future. The Group’s decarbonisation plans consist of an increased reliance on alternative fuel (AF), accelerated energy efficiency improvement efforts and a shift to low-carbon products and processes.

Titan Cement said “Through the participation in European and international consortia, as well as through collaborations in research and development projects, Titan will continue to develop low-carbon cementitious products and pilot carbon capture technologies in its plants, actively contributing to the industry’s ambition for a carbon-neutral future.”

US: The Portland Cement Association (PCA) has published a roadmap to carbon neutrality for the cement and concrete sectors by 2050. It says that the strategy document demonstrates how the US cement and concrete industry, along with its entire value chain, can address climate change, decrease greenhouse gases and eliminate barriers that are restricting environmental progress. It added that the document is a ‘major step’ towards engaging US policymakers, industry partners and non-government organisations.

“Cement and concrete have been pivotal in building resilient, durable and sustainable communities that enable people to live safe, productive and healthy lives via structures that withstand natural and man-made disasters,” said PCA President and chief executive officer, Michael Ireland. “The PCA is uniquely positioned to lead the industry-wide ambition to achieving carbon neutrality and enable our member companies and industry partners to continue building a better future.”

The PCA’s roadmap outlines a number of reduction strategies across the various phases of the built environment including production at cement plants, construction including designing and building and everyday infrastructure in use. It also recognises five main areas of opportunity: clinker; cement; concrete; construction; and carbonation (using concrete as a carbon sink).

Notably goals include a reduction of coal and petcoke use at cement plants to 10% in 2050 from 60% at present, a clinker ratio of 75% in 2050 from 90% at present and a reduction of the CO₂ intensity of concrete of 60% by 2050. The roadmap also noted the necessity of carbon capture and storage/utilisation (CCUS) for reducing CO₂ emissions from cement production. However is pointed out that there are no commercial-scale CCUS installations at any cement plant within the US, location and permitting challenges remained and that infrastructure investment would be required to deal with the captured CO2.

India: Ambuja Cement has received validation from the Science-Based Targets Initiative (SBTi) that its CO₂ reduction targets conform to a well below zero global warming scenario. India Infoline News has reported that Ambuja Cement is committed to a Scope 1 and Scope 2 CO₂ emissions reduction of 21% to 453kg/t of cementitious materials by 2030 from 531kg/t in 2020. Over this period, it aims to reduce Scope 1 emissions by 20% and Scope 2 emissions by 43%.

Ambuja's chief executive officer and managing director Neeraj Akhoury said “We are constantly dedicated and invested in sustainable development and aim to include sustainability in all operational and project planning. With science-based targets developed and validated, Ambuja Cement has now joined the group of global companies promoting an ambitious low carbon economy model for the industry. Being part of the Holcim group and one of the pioneers in the Indian cement industry, we have taken another step towards strengthening our Climate Change adaptability by joining the Race to Zero." He added "Ambuja Cement will continue to implement such best practices and adopt continuous improvement initiatives to achieve our business vision to be most competitive and sustainable company in our industry.