Displaying items by tag: Sustainability

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).

France: Ireland-based Ecocem has opened its new innovation centre, the Centre of Excellence, in Paris. The purpose of the facility is to help to accelerate the development of new technology for the decarbonisation of the cement and construction industries. Ecocem's innovation team will use it for industrial-scale trials in collaboration with industry and academic partners, including Paris-Saclay University and The University of Toulouse. It says that it hopes that one outcome will be the further developmentof the Ecocem reduced-CO₂ product range. Breakthrough Energy Ventures provided funding towards the centre's construction.

Ecocem innovation director Laurent Frouin said “Ecocem is committed to the deep and rapid decarbonisation of the global cement industry. It is essential for the planet and future generations, and it can be achieved through innovation and technology." He added “The cement and construction industries are developing and deploying a range of emission reduction technologies – Ecocem and our new Centre of Excellence will add a further dimension to these efforts.”

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.

India: Shree Cement has hired FLSmidth to supply a 11,5000t/day kiln line for its planned Nawalgarh, Rajasthan, cement plant. The line will consist of a six-stage preheater and a three-support kiln. The supplier will also deliver an OK vertical roller mill, which it says has a 5 – 10% lower energy consumption than a standard vertical roller mill. The project focuses on sustainable productivity and emissions control. Shree Cement has opted for JetFlex burners to give the lowest possible nitrous oxide emissions for various fuel types.

Shree Cement managing director Prashant Bangur said “Based on the experience of working with FLSmidth on the installation of a 9,000t/day pyro system at the Raipur, Chhattisgarh, cement plant earlier this year, we felt confident about approaching Carsten Riisberg Lund and his team regarding the Rajasthan project.” He added “Being recognised as a Sustainability Champion by the World Economic Forum is a testament of our emphasis on sustainability at every stage of our operations. The new line will push that agenda even further in terms of lowering the benchmarks on energy consumption and emissions, and thereby reducing our environmental footprint.”

FLSmidth also supplied a second OK mill for Shree Cement’s operations in Kolkata, West Bengal.

Canada: Habitats for Humanity has again partnered with Lafarge Canada for its annual affordable housing fundraiser in Kingston, Ontario. This year, the partners will attempt to raise US$21,700 over 27 days to support the construction of sustainable housing in Eastern Canada. Lafarge Canada has pledged 80m3 of its ECOPact reduced-CO₂ concrete to the project.

Eastern Canada regional head of environment and sustainability Rob Cumming said "Our sustainability goals overlap safe housing with reduced climate impact.” He added "We are excited about this first milestone and are looking forward to the future supply of our ECOPlanet solutions.”

Portugal: Cimpor has announced plans for the establishment of 1MW solar power plants at each of its three cement plants in Portugal. The Dinheiro Vivo newspaper has reported that the measure comes under a planned Euro130m investment package in upgrades to its cement operations before 2030. The plans include the expansion of the solar power plants to a total capacity of 10MW by 2025. Additionally, the producer will install two waste heat recovery (WHR) plants with a combined capacity of 8MW at its Alhandra and Souselas cement plants. The company is aiming to reduce its indirect CO₂ emissions by 30%. It also has an alternative fuel (AF) substitution rate target of 70% by 2030 - compared to 3% in 2020, when it used 150,000t of AF.

Cimpor has previously invested a total of Euro7.2m in dedicated sustainability-related measures.

US: GCC plans to fully convert production at its 0.35Mt/yr Trident Plant in Montana to Portland Limestone Cement (PLC) in early 2022. The cement producer estimates that the plant’s production change will reduce its CO₂ emissions by almost 25,000t/yr.

“We believe that our industry must continue to provide the homes, roads and infrastructure that shape our world while, simultaneously, addressing the challenge of climate change,” said Ron Henley, president of GCC’s US division. “PLC is one piece of the puzzle to reduce greenhouse gases. Concrete made with PLC is a resilient material that easily meets the needs of our customers for generations to come.” He added that GCC signed the Global Cement and Concrete Association’s (GCCA) net zero pledge earlier in 2021.

India: Ambuja Cements has commenced commercial production at its new 3Mt/yr Marwar cement plant in Nagaur, Rajasthan. The plant has and an additional 2Mt/yr of grinding capacity. The Orissa Diary newspaper has reported that the producer invested US$316m in its construction. The Marwar cement plant increases Ambuja Cement’s installed capacity by 20% to 29.7Mt/yr.

Managing director Neeraj Akhoury said “Ambuja has ambitious growth plans to expand its capacities in India, and the Marwar plant is a step in that direction. We are very proud that it is a ‘green plant’ designed to meet our ambition for a sustainable future. The plant has deployed all modern equipment and technology to produce cement in a more environmentally friendly manner. It has a waste heat recovery (WHR) system that converts waste heat derived during the production process into energy.”