Displaying items by tag: UK
Hanson's Ribblesdale cement plant carbonates recycled concrete paste with CO2 emissions
22 November 2022UK: Hanson has announced a 'carbon capture breakthrough' in its use of recycled concrete paste (RCP) in the wet scrubber of its Ribblesdale cement plant in Lancashire. In under 30 minutes, 15t of RCP was able to capture 1.5t of CO2 from the plant's flue emissions. Carbonated RCP is suitable to replace limestone in cement production.
Hanson's sustainability director Marian Garfield said “The trial was carried out with our parent company Heidelberg Materials’ research and development team, and marks another important milestone in our carbon capture journey."
TCRK announces carbon capture project with Asia Cement
16 November 2022South Korea: UK-based TCRK has announced a deal with Asia Cement to use its carbon capture and utilisation (CCU) technology at the cement producer’s plant in Jaechon. The project will see the first commercial deployment of TCRK’s CCUS technology from the first quarter of 2023. It will initially target 30,000t/yr of CO2 equivalent and then ramp up to 120,000t/yr of CO2 equivalent by mid-2024. The second target is intended to help Asia Cement reduce its emissions by 20% required to meet its 2025 decarbonisation plan.
TCRK’s approach will use two processes to utilise capture CO2 from cement production. Its Arago Cement Process uses captured CO2, cement kiln dust and by-pass particles to produce precipitated calcium carbonate, which TCRK uses to produce a product called Arago Cement. The captured CO2 will also be used to grow microalgae in a process called bio-fixation. This method will offer 10% extra carbon storage capacity. The microalgae has a wide range of potential end-products including bioplastics and animal feed, and can also be used as a source of bio-cement production.
Cookstown Cement rebrands as Cemcor
10 November 2022UK: Cookstown Cement has rebranded as Cemcor. The company formed in January 2022 following its acquisition of the 0.45Mt/yr Cookstown cement plant from Holcim in January 2022. It then announced investments of around Euro14m towards making environmental and process upgrades at the unit. The company also purchased a limestone quarry in Cookstown, a shale quarry in Dungannon and a terminal at Belfast Harbour.
RealWear launches voice-controlled thermal camera
03 November 2022UK: RealWear has launched the world’s first voice-controlled head-mounted thermal camera. The new product combines the supplier's RealWear thermal camera and RealWear Navigator 500 headset with Teledyne FLIR's Lepton radiometry technology, enabling effortless capture of visible-spectrum and thermal imagery. Cement plant operators can then quickly identify temperature anomalies in mission-critical equipment like pumps, pipes, wiring and motors.
Chief Product Officer Rama Oruganti said “RealWear Navigator head-mounted devices, with a revolutionary modular design, continue to gain support with global 1000 companies as the new gold standard in assisted reality. The compelling option to add thermal image capture without occupying your hands in hazardous environments gives frontline professionals more real-time information to do their jobs safely and productively.”
Slashing cement's CO2 emissions Down Under
02 November 2022In Australia and New Zealand, four producers operate a total of six integrated cement plants, with another 13 grinding plants situated in Australia. This relatively small regional cement industry has been on a decades-long trajectory towards ever-greater sustainability – hastened by some notable developments in recent weeks.
Oceania is among the regions most exposed to the impacts of climate change. In Australia, which ranked 16th on the GermanWatch Global Climate Risk Index 2021, destructive changes are already playing out in diverse ways.1 Boral reported 'significant disruption' to its operations in New South Wales and southeast Queensland due to wet weather earlier in 2022. This time, the operational impact was US$17.1m; in future, such events are expected to come more often and at a higher cost.
Both the Australian cement industry and the sole New Zealand cement producer, Golden Bay Cement, have strategies aimed at restricting climate change to below the 2° scenario. Golden Bay Cement, which reduced its total CO2 emissions by 12% over the four-year period between its 2018 and 2022 financial years, aims to achieve a 30% reduction by 2030 from the same baseline. The Australian Cement Industry Federation (CIF)'s 2050 net zero cement and concrete production roadmap consists of the following pathways: alternative cements – 7%; green hydrogen and alternative fuels substitution – 6%; carbon capture – 33%; renewable energy, transport and construction innovations – 35% and alternative concretes – 13%, with the remaining 6% accounted for by the recarbonation of set concrete.
Australia produces 5.2Mt/yr of clinker, with specific CO2 emissions of 791kg/t of clinker, 4% below the global average of 824kg/t.2 Calcination generates 55% of cement’s CO2 emissions in the country, and fuel combustion 26%. Of the remainder, electricity (comprising 21% renewables) accounted for 12%, and distribution 7%. Australian cement production has a clinker factor of 84%, which the industry aims to reduce to 70% by 2030 and 60% by 2050. In New Zealand, Golden Bay Cement's main cement, EverSure general-purpose cement, generates CO2 at 732kg/t of product.3 It has a clinker factor of 91%, and also contains 4% gypsum and 5% added limestone.
Alternative raw materials
Currently, Australian cement grinding mills process 3.3Mt/yr of fly ash and ground granulated blast furnace slag (GGBFS). In Southern Australia, Hallett Group plans to commission its upcoming US$13.4m Port Augusta slag cement grinding plant in 2023. The plant will use local GGBFS from refineries in nearby Port Pirie and Whyalla, and fly ash from the site of the former Port Augusta power plant, as well as being 100% renewably powered. Upon commissioning, the facility will eliminate regional CO2 emissions of 300,000t/yr, subsequently rising to 1Mt/yr following planned expansions. Elsewhere, an Australian importer holds an exclusive licencing agreement for UK-based Innovative Ash Solutions' novel air pollution control residue (APCR)-based supplementary cementitious material, an alternative to pulverised fly ash (PFA), while Australian Graphene producer First Graphene is involved in a UK project to develop reduced-CO2 graphene-enhanced cement.
Golden Bay Cement is investigating the introduction of New Zealand's abundant volcanic ash in its cement production.
Fuels and more
Alternative fuel (AF) substitution in Australian cement production surpassed 18% in 2020, and is set to rise to 30% by 2030 and 50% by 2050, or 60% including 10% green hydrogen. In its recent report on Australian cement industry decarbonisation, the German Cement Works Association (VDZ) noted the difficulty that Australia's cement plants face in competing against landfill sites for waste streams. It described current policy as inadequate to incentivise AF use.
Cement producer Adbri is among eight members of an all-Australian consortium currently building a green hydrogen plant at AGL Energy’s Torrens Island gas-fired power plant in South Australia.
Across the Tasman Sea, Golden Bay Cement expects to attain a 60% AF substitution rate through on-going developments in its use of waste tyres and construction wood waste at its Portland cement plant in Northland. The producer will launch its new EcoSure reduced-CO2 (699kg/t) general-purpose cement in November 2022. In developing EcoSure cement, it co-processed 80,000t of waste, including 3m waste tyres. The company says that this has helped in its efforts to manage its costs amid high coal prices.
Carbon capture
As the largest single contributor in Australia's cement decarbonisation pathway, carbon capture is now beginning to realise its potential. Boral and carbon capture specialist Calix are due to complete a feasibility study for a commercial-scale carbon capture pilot at the Berrima, New South Wales, cement plant in June 2023.
At Cement Australia's Gladstone, Queensland, cement plant, carbon capture is set to combine with green hydrocarbon production in a US$150m circular carbon methanol production facility supplied by Mitsubishi Gas Chemical Company. From its commissioning in mid-2028, the installation will use the Gladstone plant's captured CO2 emissions and locally sourced green hydrogen to produce 100,000t/yr of methanol.
More Australian cement plant carbon capture installations may be in the offing. Heidelberg Materials, joint parent company of Cement Australia, obtained an indefinite global licence to Calix's LEILAC technology on 28 October 2022. The Germany-based group said that the method offers effective capture with minimal operational impact.
Cement Australia said “The Gladstone region is the ideal location for growing a diverse green hydrogen sector, with abundant renewable energy sources, existing infrastructure, including port facilities, and a highly skilled workforce." It added "The green hydrogen economy is a priority for the Queensland government under the Queensland Hydrogen Industry Strategy.”
Logistics
Australian and New Zealand cement facilities' remoteness makes logistics an important area of CO2 emissions reduction. In Australia, cement production uses a 60:40 mix of Australian and imported clinker, while imported cement accounts for 5 – 10% of local cement sales of 11.7Mt/yr.
Fremantle Ports recently broke ground on construction of its US$35.1m Kwinana, Western Australia, clinker terminal. It will supply clinker to grinding plants in the state from its commissioning in 2024. Besides increasing the speed and safety of cement production, the state government said that the facility presents 'very significant environmental benefits.'
Conclusion
Antipodean cement production is undergoing a sustainability transformation, characterised by international collaboration and alliances across industries. The current structure of industrial and energy policy makes it an uphill journey, but for Australia and New Zealand's innovating cement industries, clear goals are in sight and ever nearer within reach.
References
1. Eckstein, Künzel and Schäfer, 'Global Climate Risk Index 2021,' 25 January 2021, https://www.germanwatch.org/en/19777
2. VDZ, 'Decarbonisation Pathways for the Australian Cement and Concrete Sector,' November 2021, https://cement.org.au/wp-content/uploads/2021/11/Full_Report_Decarbonisation_Pathways_web_single_page.pdf
3. Golden Bay Cement, 'Environmental Product Declaration,' 12 May 2019, https://www.goldenbay.co.nz/assets/Uploads/d310c4f72a/GoldenBayCement_EPD_2019_HighRes.pdf
John King Chains named MHEA Supplier of the Year
24 October 2022UK: The Materials Handling Engineers Association (MHEA) has named John King Chains as the UK’s Supplier of the Year to the materials handling industry.
Managing director David Wadsworth said “It is fantastic to achieve such a prestigious award, and one that confirms that our continual reinvestment into best manufacturing equipment and techniques over the years was the right decision, backed up by our remarkable workforce, who cannot be underestimated." Wadsworth added "We are pleased to also inform our clients that we have further exciting plans in the pipeline, and one we aim to announce to the industry in
early 2023!”
Wright Engineering upgrades Lhoist's Whitwell lime plant
13 October 2022UK: Wright Engineering has installed new inlet sealings on a kiln at Lhoist's Whitwell lime plant in Derbyshire. The new configuration increases the distance between the kiln's leaf segments and inlet to 400mm. The supplier says that the increased distance from the flow of incoming material will alleviate spillage issues in the kiln.
Seratech's carbon-neutral cement wins Obel Award 2022
10 October 2022UK: Denmark-based architecture fund Henrik Frode Obel Foundation has named Seratech as winner of its Obel Award 2022. The award recognises architectural contributions to global development. Seratech has developed an olivine-based composite cement produced using CO2 from flue emissions, which can sequester double the CO2 of ordinary Portland cement (OPC). When used as 40% of a blend with OPC, it is able to completely offset the emissions of concrete production.
Team member Barnaby Shanks said "The beauty of the idea is that you can just use it as normal concrete. There are other carbon-neutral materials, but they can be limiting because they can only be precast, cured in a lab in special conditions and shipped elsewhere. We want people to retain the freedom to use concrete the way that they are used to. We don’t want to limit people in any way because we’ll just lessen the amount of impact we can have."
UK: Breedon Group, together with Australia-based First Graphene, Morgan Sindall Construction & Infrastructure and the University of Manchester, is developing a new reduced-CO2 graphene-enhanced cement. The consortium is currently formulating the cement using varying doses of First Graphene’s PureGRAPH graphene-enhanced grinding aid. The project received a research grant from the UK government earlier in 2022. First Graphene says that the study involves one of the largest commercial trials of its kind to date globally. It is simultaneously collaborating on another similar trial with a Europe-based speciality chemicals producer.
On 29 September 2022, First Graphene launched its latest range of graphene-enhanced cement grinding aids and concrete additives. These join recent launches PureGRAPH AM, an admixture developed in collaboration with South Africa-based Nanoproof/Glade Chemicals, and HexMortar, a dry mortar mix which will be distributed by New Zealand-based GtM Action.
First Graphene says that its cement and concrete segment’s order pipeline totals US$113m in value. Managing director and chief executive officer Michael Bell said “It is pleasing to see our efforts, and those of our collaboration partners, coming to fruition at a commercial scale. One of the primary drivers for the adoption of graphene solutions in this segment is the reduction of CO2 emissions. We’re seeing considerable benefits both in the immediate reductions that can be achieved through the use of graphene-enhanced grinding aids, as well as the potential reductions in concrete usage because of the enhanced physical properties these products provide.” Bell concluded “Working with industry-focused partners such as Nanoproof/Glade Chemicals, GtM Action, Breedon Cement and Fosroc opens the way to an estimated addressable market of more than 12,000t of PureGRAPH across the medium to long term.”
Innovative Ash Solutions launches supplementary cementitious material made from incinerator waste
27 September 2022UK: Innovative Ash Solutions, a joint venture of Levenseat and Organic Innovative Solutions, has launched a new air pollution control residue (APCR)-based supplementary cementitious material (SCM). The supplier produces the material at its Lanarkshire treatment facility using APCR local from municipal solid waste (MSW) and wood biomass incinerators. Innovative Ash Solutions has received planning permission for a 54,000t/yr industrial-scale APCR-based SCM plant, and plans to establish a total of three plants in the UK, one of which will reach a capacity of 500,000t/yr. It has also signed an exclusive licensing agreement with an Australia-based importer for the material.
The SCM is designed to replace pulverised fly ash (PFA), of which the UK imported 325,000t in 2019, more than four times its 2012 import volumes of 76,000t.
Innovative Ash Solutions director Robert Gren said “We are excited to bring this new product to market. Innovative Ash Solutions is the first and, so far, the only company in the UK to have achieved ‘End of Waste’ accreditation for a PFA replacement for this type of use. Our research shows there is potential to produce more than 500,000t/yr of PFA replacement from UK APCRs every year, which would reduce the need for importing materials and support the decarbonisation of cement and concrete products.”