Displaying items by tag: Plant

China: Henan Province has announced a planned rise in water and energy tariffs for cement producers that fail to meet current emissions standards and clean transportation requirements. Reuters News has reported that companies subject to the measures will pay US$0.07 – US$0.14/m3 more for water and up to US$0.01/kWh more for electricity. Henan enacted ‘ultra-low’ emissions limits of 10Mg/Nm³ of dust, 50Mg/Nm3 of NO_x and 100Mg/Nm³ of SO₂ in 2018. Cement plants in the province produce 105Mt/yr of cement.

Myanmar: Young Investment Group Industry Company Limited (YIGICL) has entered into a joint venture with China-based China Gezhouba Group Cement (CGGC) and China Gezhouba Group Overseas Investment (CGGOI) with the aim of establishing an integrated cement plant in Mandalay, Mandalay region. The joint venture, which is held 30:70 by YIGICIL and the Chinese partners respectively, will also set up a limestone mine.

Canada: LafargeHolcim subsidiary Lafarge Canada has dismissed an employee after a thorough investigation into a piece of racist graffiti ended in discovery of the guilty party. Canada Newswire has reported that the harmful drawing, which occurred at the company’s 1.0Mt/yr integrated St Constant plant in Quebec, has been removed. Lafarge Canada said, “To increase employee awareness and strengthen everyone's role in creating a positive work environment, we have communicated with all of our employees on all of our sites and encourage them to speak up if they see, hear or feel any concerns whatever.”

Hydrogen and its use in cement production has been adding a dash of colour to the industry news in recent weeks. Last week, Lafarge Zementwerke, OMV, Verbund and Borealis signed a memorandum of understanding (MOU) to plan and build a full-scale unit at a cement plant in Austria to capture CO₂ and process it with hydrogen into synthetic fuels, plastics or other chemicals. This week, Air Products and ThyssenKrupp Uhde Chlorine Engineers (TUCE) signed a strategic agreement to work together in ‘key regions’ to develop projects supplying green hydrogen. Both of these developments follow the awarding of UK government funding in February 2020 to support a pilot project into studying a mix of hydrogen and biomass fuels at Hanson Cement’s Ribblesdale integrated plant.

As the title of this column suggests there is an environmental colour code to describe how hydrogen is made for industrial use. This is a bit more codified than when grey cement gets called ‘green’ but it pays to remember what the energy source is. So-called ‘green’ hydrogen is produced by the electrolysis of water using renewable energy sources such as hydroelectric or solar, ‘Grey’ hydrogen is made from steam reforming using fossil fuels and ‘Blue’ hydrogen is similar to grey but has the CO₂ emissions from the fuels captured and stored/utilised. Price is seen as the main obstacle to wider uptake of hydrogen usage as a fuel in industry although this is changing as CO₂ pricing mounts in some jurisdictions and the connected supply chain is developed. A study by BloombergNEF from March 2020 forecasted that green hydrogen prices could become cheaper than natural gas by 2050 in Brazil, China, India, Germany and Scandinavia but it conceded that many barriers would have to be overcome to get there. For example, hydrogen has to be manufactured making it more expensive than fossil fuels without government policy support and its, “lower energy density also makes it more expensive to handle.”

The three recent examples with respect to the cement industry are interesting because they are all exploring different directions. The Lafarge partnership in Austria wants to use hydrogen to aid the utilisation side of its carbon capture at a cement plant. The industrial suppliers, meanwhile, are positioning themselves in the equipment space for the technology required to use hydrogen on industrial plants. Secondly, ThyssenKrupp has alkaline water electrolysis technology that it says it has used at over 600 projects and electrochemical plants worldwide. Air Products works with industrial gas production, storage and handling.

Finally, the Hanson project in the UK will actually look at using hydrogen as a partial replacement for natural gas in the kiln combustion system. A Cembureau position paper in mid-2019 identified that the challenges to explore in using hydrogen in cement production included seeing how its use might affect the physical aspects of the kiln system, the fuel mass flows, temperature profile, heat transfer and the safety considerations for the plant. Later that year a feasibility study by the Mineral Products Association (MPA), Verein Deutscher Zementwerke (VDZ) and Cinar for the UK government department that is funding the Hanson project concluded that a hydrogen flame’s high heat in a burner alone might not make it suitable for clinker formation. However, the study did think that it could be used with biomass to address some of that alternative fuel’s “calorific limitations” at high levels. Hence the demonstration of a mixture of both hydrogen and biomass.

That’s all on hydrogen but, finally, if you didn’t log into yesterday’s Virtual Global CemProducer 2 Conference you missed a treat. One highlight was consultant John Kline’s presentation on using drones to inspect refractory in some hard to reach places. Flying a camera straight into a (cool) pyro-processing line was reminiscent of a science fiction film! Global Cement has encountered the deployment of unmanned aerial vehicles in quarry and stockpile surveys previously but this was a step beyond.

The proceedings pack - including video, presenter slides and delegate list - for the Virtual Global CemProducer 2 Conference 2020 is available to buy now

China/India: UltraTech Cement has agreed to sell its majority stake in Shandong Binani Rongan Cement for around US$120m. As part of the deal its subsidiaries Krishna Holdings and Nathdwara Cement will both divest their shareholdings in the company. UltraTech Cement picked up the 3Mt/yr plant in 2018 as part of its acquisition of Binani Cement in 2018. The buyer has not been named.

Uzbekistan: Akhangarantsement says that it has installed a ThyssenKrupp raw materials grinding unit at the site of an upcoming 5Mt/yr integrated cement plant in Tashkent Region. The equipment consists of a jaw crusher for primary crushing and a hammer mill for secondary crushing. The company said that the upcoming plant will “provide the market with a line of high-quality products for the construction of housing, industrial and infrastructure facilities.”

Russia: Eurocement subsidiary Kavkazcement has announced the launch of a new CEM-II Portland limestone cement product. The company says that the cement has a wide range of applications, from “general purpose structures to objects operating under aggressive environmental conditions: concrete and reinforced concrete structures, monolithic structures, massive foundations and indoor structures, as well as in screeds, plaster mortars and dry building mixes.” Kavkazcement general director Nikolai Muradov said, “The use of cements with mineral additives provides a high-quality concrete surface; in finished products, the risk of efflorescence, cracking and other defects is reduced.” Customers can purchase the product in 50kg or 1t bags.

Tanzania: Huaxin Cement subsidiary African Tanzanian Maweni Limestone has ignited the kiln and begun trial production of clinker at its newly upgraded 0.75Mt/yr Maweni Limestone clinker plant. Huaxin Cement acquired the subsidiary in May 2020 and begun upgrading the kiln line on 1 June 2020, in spite of the fact that only 14 Huaxin Cement management team colleagues remained in the country due to the company withdrawing staff to China prior to the coronavirus lockdown.

Huaxin Cement says that it will not upgrade the plant’s grinding unit “for various reasons.” The company said, “subject to the epidemic prevention and control situation, the company will send an excellent management team to implement advanced cement process technology and management. We are committed to turning Maweni Limestone into a benchmark industrial enterprise in Tanzania and promoting the local cement industry to achieve quality.”

Nigeria: BUA Group subsidiary BUA Cement has shared plans to establish a 3Mt/yr-capacity integrated cement plant in Guyuk, Adamawa State. The Sun newspaper has reported that the company also plans to establish a 50MW power plant in nearby Lamurde, also in Adamawa State. BUA Group chairman Abdul Samad Rabiu said, “We will use new technologies to supply power to the proposed cement plant and communities of Guyuk and Lamurde.” The state’s limestone deposits with provide the raw material for clinker production.

Zimbabwe: PPC Zimbabwe has announced that it has entered into a preliminary agreement with a Zimbabwe-based energy investor “with technical partners in South Africa” that will build and operate the company’s planned 32MW solar power plant in Matabeleland South. 16MW will power PPC Zimbabwe’s cement production and the rest will be fed in the national electricity grid, according to the Herald newspaper. The unit will be located adjacent to PPC Zimbabwe’s 0.5Mt/yr integrated Colleen Bawn plant.