Displaying items by tag: Emissions
Vicem and FLSmidth target sustainable cement production
10 February 2020Vietnam: The Vietnam National Cement Corporation (Vicem) and Denmark-based supplier FLSmidth have announced a cooperation agreement with the aim of radically reducing the greenhouse gas emissions from cement production and improving air quality. The cooperation will consist of Vicem implementing solutions pioneered by FLSmidth. FLSmidth said that a key focus of the cooperation will be Vicat’s use of ‘municipal and other waste streams as alternative fuel sources,’ with the aim of achieving 100% substitution using FLSmidth solutions, in accordance with FLSmidth’s ambition ‘to enable cement companies to operate with zero emissions by 2030.’
Grupo Cementos de Chihuahua commits to Science Based Targets towards reducing CO2 emissions
31 January 2020Mexico: Grupo Cementos de Chihuahua (GCC) says it will commit to setting greenhouse gas reduction targets in line with climate science by joining the Science Based Targets initiative (SBTI). GCC will set science-based emission reduction targets in line with the level of decarbonisation required to keep global temperature increase well-below 2°C compared to pre-industrial temperatures, as described in the latest Special Report of the Intergovernmental Panel on Climate Change (IPCC).
“By joining the SBTI, GCC will ensure that the company´s low-carbon transformation is aligned with climate science and is a further reflection of our unwavering commitment to implement global best practices related to sustainability,” said Enrique Escalante, GCC´s chief executive officer (CEO).
CemFree achieves first with volumetric motorway application
30 January 2020UK: CemFree cement-free concrete has been applied volumetrically for the first time in a 52m3 repair to the Woodford West Viaduct on the M25 London ordbital motorway in Essex. The reason behind the choice of method was the unavailability of batching plants at night, which was the only time that a team of Jackson, DB Group and Axtell employees working on behalf of Connect Plus were permitted to perform the work on the UK’s busiest road. CemFree said that 9.4t of CO2 emissions were cut by comparison to the same project undertaken with ordinary Portland cement (OPC). Jackson director of highways Paul Watson said, “We hope this marks a turning point on the M25 and the wider Highways sector for using low carbon alternatives.”
Cemfree uses 95% ground granulated blast furnace slag (GGBFS) and a 5% alkali activator, removing the need for cement. This gave CO2 emissions of 114kg/t, which the company says is 77% lower than conventional (OPC).
Research suggests 50% of cement and steel used in construction could be replaced by wood
28 January 2020Germany: Research from the Potsdam Institute for Climate Impact Research (PIK) has suggested that wood, including fast-growing bamboo, could supplant 50% of cement and steel used in construction, cutting global CO2 emissions by up to 880Mt/yr and providing a carbon sink for close to 700Mt/yr of CO2 emissions. Assuming a no-change scenario in cement production practices, PIK fellow Galina Chakina says, ‘the shift to timber would make quite a difference for achieving the climate stabilisation targets of the Paris agreement.’
Germany: Holcim Deutschland has announced the successful development of Holcim EcoPact Zero, a net-zero carbon concrete. It says that it is in talks with customers in Germany and will make the first deliveries of EcoPact Zero in early 2020. Holcim Deutschland CEO Thorsten Hahn said, “The use of clinker-reduced cements and the optimisation of the binder content play a central role. The still unavoidable CO2-footprint is fully offset at with the support of various certified environmental projects.”
Uzbekistan starts pollution monitoring
22 January 2020Uzbekistan: The State Committee of Uzbekistan for Ecology and Environmental Protection plans to create a system of monitoring stations for automatic measurement of air pollution, including particulate matter (PM), throughout the country. Part of this will include the installation of automatic emissions sampling and analysis stations at a number of industrial plants, as well as static monitoring stations within and near plant sites, including in the cement sector. Installation will be at the cost of the industrial facility.
In late 2019 the State Committee for Ecology, together with the Ministry of Health and Uzhydromet, took samples of air from 13 cement plants, finding that five greatly exceeded international norms for dust emissions. Based on the results of the audit, the committee has developed a draft government decree on strengthening environmental control over cement plants. If the document is approved, then all existing cement manufacturers will be obliged to install automatic sampling stations for analysis of air pollution by 1 January 2022, as well as stationary posts in the adjacent territory at their own expense.
Resident alleges insufficient checks made on use of glass at Holcim Süddeutschland Dotternhausen plant
16 January 2020Germany: A Zollernalb, Baden-Württemberg resident who mounted legal action against Tübingen Council in June 2019 over LafargeHolcim subsidiary Holcim Süddeutschland’s use of waste glass in cement production at its 1.1Mt/yr integrated Dotternhausen plant has submitted ‘extensive reasoning’ for the challenge. The Schwarzwälder Bote has reported that Holcim Süddeutschland allegedly did not complete the proper tests before introducing glass to cement production at Dotternhausen in late 2017. The claimant ‘noticed a rise in heavy metal levels.’
At a subsequent council meeting, a Holcim Süddeutschland employee bore witness to the presence of a defective bag filter. By receiving glass ground to grains of a certain fineness, the claimant alleges that Holcim Süddeutschland was able to bypass federal waste regulations necessitating contaminant checks. They said the company was ‘taking citizens for idiots.’
Belgium: Cembureau, the European Cement Association, says it will undertake a review of the targets set out in its 2050 Low Carbon Roadmap (2013/2018) in order to align the industry’s efforts with the carbon neutrality objectives contained in the European Green Deal published in December 2019. Following this reassessment, the association says it publish a revised low-carbon roadmap setting out the key role of cement and concrete in the circular economy and a path to achieving carbon neutrality along its value chain in Europe by 2050. Cembureau expects the revised roadmap to be published in early spring 2020.
“As an industry we are determined to ensure that we play our part in helping Europe to meet its emissions reduction targets. With concrete, our industry has a sustainable building material that is uniquely positioned as an essential enabler of the transition to a carbon neutral society,” said Cembureau’s president Raoul de Parisot.
Cembureau warns European Green Deal to encourage investment, certainty and competitiveness
12 December 2019Belgium: Cembureau, the European Cement Association, has called on the European Union’s (EU) Green Deal to incentivise investment in low-carbon technologies, provide long-term legal certainty and foster the industry’s global competitiveness. It said that the new proposal to tackle climate change showed ‘great promise’ and ‘ambitious vision’ but that this needed to be converted into action to support a successful industrial transformation.
The association is concerned about a new carbon border adjustment mechanism. In its view, “the replacement of the existing carbon leakage measures by an untested mechanism would create considerable uncertainty and risks.” Instead it called on the EU to look at a design that complements the existing carbon leakage measures and is fair for third country importers and EU producers.
Aspects of the European Green Deal that the association praised included the recognition that the cement industry is ‘indispensible’ to the European economy. It also liked the European Commission’s (EC) emphasis on the circular economy that fits with work the sector is doing already from alternative fuels usage to recycling concrete.
"The European Green Deal is our new growth strategy – for a growth that gives back more than it takes away. It shows how to transform our way of living and working, of producing and consuming so that we live healthier and make our businesses innovative. We can all be involved in the transition and we can all benefit from the opportunities,” said EC president Ursula von der Leyen in relation to the new policy proposal.
The EC published its recommendations on how to help energy-intensive industries meet the EU’s 2050 climate target in late November 2019. Its key suggestions were to create markets for climate-neutral and circular products, develop large-scale pilot projects on clean technologies and switch to alternative climate-neutral energy and feedstock sources. It added that the pilot projects should be supported by EU funds and given easier access to private financing. These recommendations will be presented to the EU member states, the EU Competitiveness Council and the European Parliament in early 2020.
Germany: HeidelbergCement’s specific CO2 net emissions per tonne of cementitious material fell by 1.4% year-on-year to 599kg CO2/t in 2018 from 608kg CO2/t in 2017. Despite this its absolute gross CO2 emissions increased by 3% to 76.7Mt from 74.2Mt as clinker, cement, aggregate and concrete sales volumes all grew in 2018. The group has published the data in its Sustainability Report for the 2018 financial year.
“Cutting our CO2 emissions and handling natural resources considerately are priorities for all our business lines,” says Bernd Scheifele, chairman of the managing board of HeidelbergCement. "We focus primarily on the development of sustainable products and the implementation of concrete measures at plant level in order to achieve our sustainability goals.” The company has set itself the target of a 30% reduction in its specific net CO2 emissions per tonne of cement by 2030, compared with 1990. HeidelbergCement says it intends to realise its vision of CO2-neutral concrete by 2050 at the latest.
Other figures of note in the report include an alternative fuels substitution rate of 21.7% in 2018 compared in 20.8% in 2017. NOx, SOx and particulate matter emissions all fell. However, total water withdrawal rose by 8% to 65.4Mm3 from 60.4Mm3 although water consumption fell.