Displaying items by tag: Clinker
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
Vietnam's ten-month cement and clinker exports fall in 2022
01 November 2022Vietnam: During the first ten months of 2022, Vietnam National Cement Association (VNCA) members exported 25.9Mt of cement and clinker, with a total value of US$1.16bn. Volumes dropped by 30% year-on-year from 37Mt, while the value of exports dropped by 20% from US$1.43bn.
In 2021 Vietnam exported 43.5Mt of cement and clinker, worth US$1.78bn, up by 13% year-on-year in volume and by 24% in value.
Borneo Oil to enlarge Makin Teguh stake to 60%
31 October 2022Malaysia: Borneo Oil has entered into a conditional share sale agreement with Makin Teguh's 45% owner Global 2332 to enlarge its stake in the cement company by 31%, to 60%. Borneo Oil has proposed a private placement to raise US$11.3m towards funding the US$21.2m deal. It previously completed a US$4.65m shares issue on 26 October 2022. Bernama Daily Malaysian News has reported that Makin Teguh plans to commence operations at its 220,000t/yr Sabah integrated cement and clinker plant in early 2023. It owns two limestone mines, with total reserves of 14.4Mt.
Austria: Rail logistics company ÖBB Rail Cargo Group (RCG) says that its haulage of 80,000t/yr of granulated blast furnace slag (GBFS) and clinker to and from w&p Zement's Wietersdorf cement plant in Carinthia by rail has removed 3200 trucks/yr from the road since its start in 2019. RCG's trains deliver the plant's clinker to the Peggau-Deutschfeistritz railway station in Styria, and return to the plant laden with GBFS from steel producer Voestalpine's nearby Leoben refinery.
RCG said that w&p Zement is currently working to increase its operations' reliance on rail, adding "Further innovative transport solutions are already being worked on."
China: China Resources Cement’s turnover fell by 21.5% year-on-year to US$3.08bn in the first nine months of 2022 from US$3.93bn in the same period in 2021. Its profit dropped by 65% to US$234m from US$677m. Cement and concrete sales volumes decreased by 17% to 52.5Mt and 26% to 8.04Mm3, although clinker sales volumes grew slightly. Sales by geographical region fell in all provinces, with the exception of Hunan. The company blamed falling profits on production costs and falling sales.
Thomas Gruppe acquires Opterra Zement and Opterra Beton from CRH
26 October 2022Germany: Ireland-based CRH has agreed to sell its subsidiaries Opterra Zement and Opterra Beton to Thomas Gruppe. Thomas Gruppe expects to complete its acquisition of the businesses later in 2022. Opterra Zement owns the 1.4Mt/yr Karsdorf, Saxony-Anhalt, cement plant and 0.5Mt/yr Sötenich, North Rhine-Westphalia, grinding plant, the latter of which is closed. Opterra Beton operates the Neufahrn, Bavaria, ready-mix concrete batching plant.
Thomas Gruppe said "For years, we have been pursuing a steady and long-term growth course in the field of cement and precast and ready-mix concrete. In the cement segment, our competitive position improved significantly with the purchase of the Erwitte (North Rhine-Westphalia) plant in 2017. Together with the grinding plant in Dorndorf (Thuringia), we have achieved a significantly larger area coverage in Germany, and also in the Netherlands, and benefit from synergy effects." It continued "We would like to continue on this growth course. An opportunity like the one to take over the cement plant in Karsdorf does not come often. The Karsdorf plant, with its gigantic limestone deposits, its market position of well over 1Mt/yr of cement and its experienced team, enables us better to supply our customers, and to leverage improvement potential. In addition, Karsdorf is of sufficient size for us to install CO2 separation technology in its production of clinker for the Dorndorf grinding plant." Thomas Gruppe concluded "We are convinced that cement will become a clean building material and believe in its future."
UAE: Asian Paints has partnered with Riddhi Siddhi Crusher & Land Transport and Associated Soap Stone Distributing Company in a 60:40 joint venture for the purpose of white cement and white cement clinker production. The joint venture will invest US$66.5m in the construction of a planned 265,000t/yr integrated cement plant in the Emirate of Fujairah. The project will take until October 2024 to complete. In addition, the new company plans to establish grinding units in India to serve the export market.
Riddhi Siddhi Crusher & Land Transport and Associated Soap Stone Distributing Company operates limestone mines in Fujairah.
Pakistan: Attock Cement recorded standalone sales of US$92.6m in its 2022 financial year, down by 3.6% year-on-year from US$96.1m in its 2021 financial year. The company produced 2.18Mt of clinker, down by 32% from 3.19Mt, corresponding to a capacity utilisation of 76%. The decision to reduce production came about due to high coal costs. Attock Cement sold 1.8Mt of cement, down by 10% from 2.01Mt in the 2021 financial year. The producer's cost of sales rose by 1.1% year-on-year to US$75.9m from US$75.1m. It profit after tax nonetheless grew by 1.2%, to US$5.07m from US$5.01m.
Chair Laith Pharaon said "The 2022 financial year was a challenging year for the company, as export sales remain depressed due to uncompetitive prices demanded by regional markets, which were also facing the uncertainties." He continued "Due to higher input costs owing to the significant increase in energy prices, the gross margin also declined by 4%. However, because of exchange gain on foreign receivables and dividend income received from its Iraq-based 60% subsidiary Saqr Al Keetan, operating margin improved by 3%.
Vietnam's nine-month cement and clinker exports decline
06 October 2022Vietnam: The Vietnam National Cement Association (VNCA) recorded combined national cement and clinker exports of 24.8Mt in the first nine months of 2022, down by 26% year-on-year from the same period in 2021. This corresponded to US$1.1bn in value, down by 14% year-on-year. Việt Nam News has reported that the VNCA expects to achieve total cement and clinker production of 107Mt, against a national capacity of 130Mt/yr. Domestic demand was 65Mt.
Earlier in 2022, Long Son Cement commissioned a new 2.5Mt/yr integrated cement plant, raising national overcapacity to 200% from 196%.
Update on Peru, October 2022
05 October 2022Cemento Yura said it was considering expanding cement and lime production this week. The announcement, made in an interview to business newspaper Gestión, follows a strong second quarter for the subsidiary of Grupo Gloria with clinker production volumes jumping up by 36% year-on-year to 0.51Mt. Overall for the half-year its clinker and cement production rose by 12.8% year-on-year to 0.86Mt and 12.7% to 1.47Mt. The success was attributed to consistent demand from the domestic sector as well as various large-scale mining projects. Julio Cáceres, the commercial director for its Cement, Concrete and Lime Division in Peru, Chile and Bolivia, wouldn’t say where the company was considering heading next, other than that remarking that it was attentive to new markets.
As Cáceres’ job title implies Cemento Yura also operates cement plants outside of Peru. At home it runs one integrated plant in the south of the country near to Arequipa as well as a lime plant at Juliaca. Outside of Peru though it also runs two integrated plants and a grinding unit in Bolivia, via its Sociedad Boliviana de Cemento (SOBOCE) subsidiary, and two integrated plants in Ecuador, via its Union Cementera Nacional (UCEM) subsidiary. The company also has assorted concrete assets. The international aspect to Cemento Yura’s business is interesting given that the larger cement producers in Peru are dominant in different parts of the country with Cementos Pacasmayo in the north, UNACEM (Unión Andina de Cementos) in the centre around Lima and Cemento Yura in the south. Notably, UNACEM also runs a plant in Ecuador and one in Arizona, US. It is also worth mentioning that competition issues have been reported in the local market previously. In mid-2021 Peru’s competition authority, the National Institute of the Defense of Competition and Intellectual Property Protection (INDECOPI), investigated Cemento Yura.
Cemento Yura’s rise in clinker production in the second quarter of 2022 is worth considering because in a previous interview with the local press Humberto Nadal, the chief executive officer of Cementos Pacasmayo, said that importing clinker had become more expensive in 2021. Subsequently, the company started a US$70m upgrade at its Pacasmayo plant to increase its production capacity by 0.6Mt/yr. In its second quarter financial results for 2022 Cementos Pacasmayo directly credited a 27% increase in its earnings on higher operating profits arising from decreasing costs by using less imported clinker. Sure enough data from Association of Cement Producers (ASOCEM) shows that both cement and clinker imports started to fall in October 2021 and have mostly followed a downward trend since then. Clinker imports fell by 41% year-on-year to 0.66Mt from January to August 2022 compared to the same period in 2021.
Graph 1: Cement production in Peru, 2014 – present. Source. Association of Cement Producers (ASOCEM).
Looking at the wider picture in Peru, cement production has stayed fairly consistent since 2014 at around 10Mt/yr. An upward trend probably started in 2019 but then the Covid-19 pandemic cut it off in the first half of 2022 before the market surged back in the second half of that year. 2021 was a good year with production peaking at 12.9Mt. So far the first eight months of 2022 have seen production rise by 5.3% year-on-year to 8.64Mt.
In summary, cement production is rising in Peru, importing clinker appears to have become more expensive for at least one of the producers and some of the larger local companies are investing in new production capacity, considering it or thinking about acquisitions elsewhere. Local clinker producers appear to be in a good place; clinker importers, or those reliant on it, not so much.