Displaying items by tag: Clinker

Tunisia: Les Ciments de Bizerte recorded a full-year consolidated turnover of US$40.1m in 2022, corresponding to a drop of 5.4% year-on-year from 2021 levels. The producer's clinker production fell by 24% year-on-year to 538,000t. African Manager News has reported that the company faced a forced stoppage during the year due to a disruption to its raw materials supply. Meanwhile, its costs increased amid rises in the price of petcoke, electricity, diesel and packaging materials.

Pakistan: Lucky Cement recorded sales of US$876m in the first half of its 2023 financial year, up by 42% year-on-year from US$616m in the first half of the 2022 financial year. It sold 3.57Mt of cement and clinker, down by 24% year-on-year from 4.7Mt. The producer's costs rose by 50% to US$585m from US$391m. It recorded a profit of US$73.1m, up by 6.8% from US$68.4m.

During the half-year period, total national cement sales dropped by 17% year-on-year to 20Mt, while Pakistan's cement exports fell by 49% to 1.7Mt. The aftermath of flooding, high interest rates, inflation and cost of goods and cuts to government spending all impacted the domestic cement market, while 'global recessionary trends' cut into exports, according to Lucky Cement.

Lucky Cement holds a 15% share in the Pakistan market and a 34% share in the export market.

Pakistan: Lucky Cement commenced clinker production from a new 3.15Mt/yr kiln line at its Pezu integrated cement in Khyber Pakhtunkhwa in late December 2022. This latest expansion increases the producer’s domestic production capacity by 26% to 15.3Mt/yr, from below 12.2Mt/yr earlier in 2022. The company also operates cement plants in Democratic Republic of Congo and Iraq with an additional capacity of 4.4Mt/yr.

The International News newspaper has reported that Lucky Cement anticipates domestic cement demand to grow due to the rebuilding of homes destroyed by flooding in 2022.

Chile: A fire at Sites 1, 2, 3 and 5 of Puerto Ventanas port in Valparaíso Region has disrupted clinker transportation to Melón’s Puerto Ventanas cement plant. The La Tercera newspaper has reported that the fire destroyed a clinker conveying system connecting the port to the cement plant. The producer expects the damage to ‘significantly impact’ its cement production capacity for a period which it is ‘not yet possible to specify.’

Melón said, “We have deployed contingency and operational continuity plans in order to ensure our supply to our customers." It added that it could not yet quantify the ultimate impacts on its assets, liabilities or results.

Morocco: Ciments du Maroc has officially started its 0.7Mt/yr Nador grinding plant in Oulad Settout. The new unit will be supplied with clinker from the integrated Ait Baha plant in Souss-Massa. It is intended to support the development of the north and east regions of the country. The project had a cost of around Euro84m.

Robert Dölger, the German ambassador, Zouhair Magour, the honorary consul of Germany, René Aldach, the chief financial officer of Heidelberg Materials, Hakan Gürdal, the head of Heidelberg Materials’ Africa-East Mediterranean Region, the president of the Oulad Settout region and various directors of Ciments du Maroc attended a ceremony marking the event on 9 December 2022.

The subsidiary of Heidelberg Materials operates three integrated plants, four grinding plants, four aggregate quarries and 21 ready-mix concrete plants in the country.

India: Dalmia Cement (Bharat) has concluded a contract for the acquisition of cement and other assets from Jaypee Group for US$684m. Mint News has reported that the deal will bring Dalmia Cement (Bharat) into control of an additional 9.4Mt/yr of cement production capacity, including 6.7Mt/yr of clinker production capacity, as well as 280MW-worth of fossil fuel-fired power capacity. All cement and grinding plants included under the deal belonged to Jaypee Group subsidiaries Jaiprakash Associates and Jaiprakash Power Ventures and are situated in Chhattisgarh, Madhya Pradesh and Uttar Pradesh.

Kenya: Savannah Cement has hired China-based Sinoma International Engineering for construction of its upcoming 2.92Mt/yr Kitui clinker plant in Eastern Province. The plant will additionally have a 900,000t/yr grinding unit, a 35MW fossil fuel-fired captive power plant and a 13MW waste heat recovery (WHR) system. Savannah Cement chair Benson Ndeta said that the plant will convert to 100% solar and WHR-powered production by the end of 2029.

Sinoma International Engineering plans to commence the project immediately, and to complete it in late 2024.

Australia: Cockburn Cement has awarded US$1.65m-worth of increased work scope to construction company SIMPEC on an existing contract with the producer. Business News Australia has reported that SIMPEC is carrying out work on Cockburn Cement's Kwinana grinding plant upgrade. The cement company is in the process of consolidating its Western Australian cement production at an expanded 1.5Mt/yr facility at the site, at a cost of US$152m. A new US$35.1m clinker terminal at Kwinana Bulk Terminal will receive up to 40,000t/yr of clinker for use at the plant and in fellow cement producer BGC's local operations.

Bolivia: Empresa Publica Productiva Cementos de Bolivia (ECEBOL)'s upcoming 1.3Mt/yr Potosí cement plant is 91% completed and will commence cement production during the first quarter of 2023, according to the Bolivian government. When operational, the plant will produce up to 3000t/day of clinker and employ 2200 people directly and indirectly.

In 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