Displaying items by tag: Emissions
Dust emissions reported at McInnis Cement plant
03 August 2020Canada: Residents at Port-Daniel-Gascons in Quebec reported dust emissions from the McInnis Cement plant in June and July 2020. This has been blamed on mechanical breakdowns and a computer failure, according to the Journal de Québec newspaper. The cement producer says it has reported the situation to the local authorities. Commercial production at the plant started in mid-2017. The incidents reportedly took place as the plant reached its maximum production capacity.
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 NOx and 100Mg/Nm3 of SO2 in 2018. Cement plants in the province produce 105Mt/yr of cement.
US: Vicat subsidiary National Cement has received a fine of US$148,000 from the Alabama Department of Environmental Management (ADEM) for exceeding mercury emissions regulations over a 123-day period between May 2019 and February 2020 at its integrated Ragland plant in Alabama. The Daily Home newspaper has reported that unexpectedly high mercury levels in coal and other raw materials burned as fuel during that time caused the breach, which the company immediately reported to ADEM.
National Cement president Spencer Weitman said, “The issue took several months to fix.” Multiple upgrades and operational changes solved the issue, including installation of a US$400,000 mercury absorption carbon injection system. ADEM said, “National Cement did not economically benefit from the emissions violations.”
In January 2020 National Cement began work on construction of a new US$250m kiln line, due for completion in 2022.
Sustainable thinking
01 July 2020HeidelbergCement released their sustainability report for 2019 this week. Every large cement producer publishes one but this one is worth checking out because of the company’s ambition to become CO2 neutral. Other companies are heading the same way but few of them have such developed and public plans.
Sustainability reports are often a hodgepodge of non-financial reporting bringing together environment, health and safety, community and other topics. Multinational companies cover a wide range of jurisdictions and combining reporting in these kinds of fields can be beneficial. Typically they are members of various bodies like the Global Reporting Initiative (GRI) or the Global Cement & Concrete Association (GCCA) that give various levels of conformity between reports. Yet, the wider focus of sustainability reports gives companies a chance to promote what they are doing well, away from balance sheets.
One highlight of HeidelbergCement’s report is its progress towards reducing its specific CO2 emissions per tonne of cement and its recognition by the Science Based Targets (SBT) initiative towards this goal. So far it has achieved a reduction of around 22% from 1990 levels to 599kg CO2/t (net) with a target of a 30% reduction or 520kg CO2/t by 2030. There is a lot more going on in the report but it’s led by the vision, ‘to offer CO2-neutral concrete by 2050 at the latest.’ It plans to achieve this by increasing the proportion of alternative CO2-neutral raw materials and fuels, developing lower clinker cement types and capturing and utilising CO2 emissions. A focus on concrete is worth noting given the pivot by building materials manufactures towards concrete in recent years.
Back in the present, HeidelbergCement is roughly in the middle of the pack of major European multinational cement producers with its specific CO2 emissions for cement in 2019. LafargeHolcim reported 561kg CO2/t and Cemex reported 622kg CO2/t. This is a bit of a moving target since corporate acquisitions and divestments can change both the starting point and the apparent current progress. HeidelbergCement’s acquisition of Italcementi in 2017 or CRH’s purchase of Ash Grove did exactly that. The other thing to consider is that these companies manufacture a lot of cement. The actual gross CO2 emissions from a multinational cement producer are immense. LafargeHolcim, one of the world’s largest multinational producers, emitted 113Mt of CO2 in 2019 from process and fuel sources whilst making cement. To put that into context, estimates for total global CO2 emissions range from 33 – 36Gt for 2019. The cement industry’s entire share was estimated by the International Energy Agency (IEA) to be 4.1Gt in 2018.
Where this sustainability report starts to become really interesting is where it talks about CO2 capture and utilisation. Its plans in this department are more mature than many of its competitors with various initiatives at different levels of development, mostly in Europe. Norcem, its Norwegian subsidiary, recently signed an agreement with Aker Solutions to order a CO2 capture, liquification and intermediate storage plant at its integrated Brevik cement plant. The deal is dependent on government support but it’s a serious proposal. As reported previously from the Innovation in Industrial Carbon Capture Conference 2020, HeidelbergCement is actively preparing to hook up with CO2 transport and storage infrastructure. The driver is CO2 pricing from initiatives like the European Union (EU) Emissions Trading Scheme (ETS). With the EU preparing for the next phase of the ETS and talk of the European Green Deal gathering pace, before the coronavirus outbreak at least, CO2 prices in Europe look set to rise. HeidelbergCement is positioning itself to benefit from being the first major cement producer to head into CO2 capture and storage/utilisation with a variety of methods intended for different CO2 prices and regional requirements.
HeidelbergCement doesn’t mention the coronavirus pandemic in its latest sustainability report. The report covers 2019 after all, before all of this happened. These reports do include health and safety information of employees, so this may be something to look out for next year. However, Cemex did mention the coronavirus in relation to its climate action plans this week. Essentially it wants to maintain its plans as a ‘fundamental component’ of its efforts to recover from the health crisis. This chimes with media talk around so-called ‘green-led’ government-backed relief programmes. Governments are the ones who are likely to be handing out the money, probably in the form of infrastructure projects. So it’s the perfect opportunity for them to encourage change from the companies bidding for this funding. Sustainability reports and the information behind them will be a useful tool in accessing this cash.
Mexico: Cemex says that the ongoing coronavirus pandemic will not delay its ‘Climate Action Strategy’ that was previously announced in February 2020. The building materials producer has developed a CO2 reduction roadmap to help guide it towards a towards a targeted 35% reduction in net specific CO2 emissions between 1990 and 2030.
The roadmap consists of: reduction of CO2 emissions of clinker through “the production of novel clinkers with lower heat consumption”; use of “alternative decarbonated raw materials”; increased alternative fuel substitution; and increased substitution of clinker with “alternative cementitious materials, using admixtures to enhance strength, and adopting new grinding technologies to improve performance”; in addition to the increased use of renewable energy.
Cemex chief executive officer (CEO) Fernando Gonzalez said, “Climate change is one of the biggest challenges of our time, and we believe that we can continue to address it as a fundamental component of our efforts to recover from the Covid-19 pandemic.”
Germany: HeidelbergCement has published its sustainability report for 2019. The building materials producer says it decreased its specific gross CO2 emissions per tonne of cement by 0.9% year-on-year to 622kg/t in 2019 from 628kg/t in 2018. Absolute net CO2 emissions also fell, by 4.6% to 68.4Mt from 71.7Mt. Indirect CO2 emission grew by 4.8% to 4.4Mt from 4.2Mt, though energy consumption in cement production fell by 3.5% to 364,000TJ from 377,000TJ.
HeidelbergCement chair Dominic von Achten said, “We have declared our express commitment to the United Nations (UN) Sustainable Development Goals. In particular, we will continue to intensify our commitment to tackling climate change in the coming years.”
South Korea: All nine domestic cement producers and the Ministry of Environment have agreed on measures to reduce NOx emissions. Asia Cement, Halla Cement, Hanil Cement Manufacturing, Hyundai Cement, Korea Cement, Sampyo Cement, Ssangyong Cement Industrial, SungShin Cement and Union Corporation have agreed to invest in upgrades to filters or new high-efficiency filters and process improvements, according to the Korea Times newspaper. There was also an agreement to set NOx emissions reduction targets for the allocation of funding. The Korea Environmental Industry Technology Institute is investing US$2.93m in research towards developing methods of selective catalytic NOx emissions reduction and selective non-catalytic NOx emissions reduction.
The government aims to reduce national NOx emissions by 20% to 155,000t/yr from 195,000t/yr through subsidies to emissions reduction technologies development and uptake. The cement sector presently emits 62,500t, 32% of the domestic total.
Norway: Private accreditation body DNVGL has certified Aker Solutions’ 400,000t/yr carbon capture and storage (CCS) system installation at Germany-based HeidelbergCement subsidiary Norcem’s 1.2Mt/yr integrated Brevik plant in Telemark as safe. HeidelbergCement Northern Europe director of sustainability and alternative fuels Per Brevik said, “The promising results from pilot testing in Brevik give us confidence that realisation of the full-scale capture plant will be successful. We trust that the project risk related to novel technology elements is low.”
Following an 18-month test of the partial installation, the certification ensures that the full-scale project will receive government funding.
Entsorga installs AF line at Hungarian plant
23 April 2020Hungary: Italy-based Entsorga has completed the installation of an automated alternative fuel (AF) line at a Hungarian cement plant.The upgrade consists of an Entsorga Spider crane and Pelican power system which will be able to maintain a continuous feed to the plant’s calcination system 24 hours a day.
Entsorga CEO Francesco Galanzino said, “Bringing a commission to a successful conclusion in the middle of the maximum intensity period of the coronavirus crisis has been a great satisfaction. The cement plant will make significant savings in CO2 emissions.”
Cementos Cosmos cuts 9650t of CO2 in 2019 with alternative fuel substitution at Oural plant
17 April 2020Spain: A 25% alternative fuel (AF) substitution rate has accounted for a 9650t reduction in CO2 emissions at Cementos Cosmos’ 0.7Mt/yr Oural, Galicia plant, lowering the specific CO2 emissions of its clinker by 45kg/t. A main constituent of the AF mix was olive stones. Cementos Cosmos Oural plant managing director Jaime Santoalla said, “At Cementos Cosmos, we accept our responsibility to meet the global objectives of reducing greenhouse gas emissions.”