Displaying items by tag: Sustainability
Bangladesh: Shahab Uddin, the Minister for Environment, Forest and Climate Change, says that five cement plants near the Sundarbans mangrove forest region have been granted environmental clearance certification. The plants are Meghna Cement Mills, Bashundhara Cement Mills, Mongla Cement Mills, Dubai-Bangla Cement Mills and Holcim (Bangladesh), according to the New Nation newspaper. Uddin said that the units were all at least 6km away from the Sundarbans reserved forest area and that the Department of Environment was monitoring their emissions on a regular basis. In 1995 the government declared a 10km area around the Sundarbans Reserve Forest as a ‘critical’ ecological zone.
Huaxin Cement emits 1.4Mt of CO2 equivalent in 2018
27 June 2019China: Huaxin Cement emitted 1.4Mt of CO2 equivalent in 2018. About 60% of this came from process emissions from making clinker and about 30% came from burning fossil fuels. Additional emissions arose from electrical consumption.
The cement producer says that it implemented a variety of emission control and sustainability initiatives in 2018. These included improving its energy saving management, rollout of waste-heat recovery systems and other plant upgrades. It is also promoting so-called ‘green’ products. In January 2019 its Huaxin Fortune brand 42.5R grade Ordinary Portland Cement obtained low carbon product certification from the China Quality Certification Center.
World Business Council for Sustainable Development launches Indian Cement Sector SDG Roadmap
26 June 2019India: Cement producers and the World Business Council for Sustainable Development (WBCSD) have launched the Indian Cement Sector SDG Roadmap. The planning framework uses the United Nation’s (UN) sustainable development goals (SDG) to set a series of goals in energy and climate, people and communities, the circular economy and natural resource management. It is intended to contribute to the UN’s 2030 Agenda for Sustainable Development.
This initiative has been convened by nine cement companies: ACC, Ambuja Cement, CRH, Dalmia Cement (Bharat), Heidelberg Cement, Shree Cement, Orient Cement, UltraTech Cement, Votorantim Cimentos. It is also partially funded by the Swiss Agency for Development and Cooperation (SDC).
Notable goals from the roadmap include promoting railway and waterway transport networks, improving transport safety, increasing the use of blended cements and encouraging the use of alternative fuels. The framework also plans to increase the number of women in the indsutry workforce at every level from entry to board.
Taiheiyo Cement agrees with Task Force on Climate-Related Financial Disclosures recommendations
24 June 2019Japan: Taiheiyo Cement says it agrees with the recommendations of the Task Force on Climate-Related Financial Disclosures (TCFD). It is promoting research and development business strategies to mitigate and adapt to climate change. The cement producer is also intending to publish a long-term plan to reduce its CO2 emissions by 2050.
UltraTech Cement to exceed 25% green energy contribution to total energy consumption by 2021
20 June 2019India: UltraTech Cement aims to increase contribution of so-called ‘green energy’ to 25% of its total power consumption by 2021 from 10% at present. It also intends to raise its contribution of renewable energy to its total power consumption by five times in the next two years to 2021 to over 10%. By building capacity for renewable power the cement producer intends to become one of the largest users of renewable energy in the Indian cement sector.
In addition to renewable energy, the green energy contribution includes energy generated through waste heat recovery systems (WHR). During its 2019 financial year UltraTech commissioned 28MW of WHR systems to take its total generation from WHR to 8% of total power consumption. Further upgrades are expected to be completed in a phased manner by 2021, taking its WHR share to 15% of its total power requirement.
“To bring the cement sector in line with the Paris Agreement on climate change, UltraTech Cement’s annual emissions will need to fall by at least 16% by 2030. There are a number of solutions for reducing emissions associated with cement production as identified by the latest Low Carbon Technology Roadmap published by International Energy Agency (IEA) in partnership with Cement Sustainability Initiative (CSI). These solutions need to be deployed at scale to meet the decarbonisation challenge,” said K K Maheshwari, the managing director of UltraTech Cement.
UltraTech Cement has set a target to reduce its CO2 emissions by 25% from its 2005 – 2006 level by 2021. The company is also working on CO2 reduction strategies including energy efficiency, alternative fuels, WHR, renewable energy and reducing its clinker ratio.
Dust matters in India
12 June 2019There was a glimmer of good news visible through the Delhi smog this week with the launch of a market-based emissions trading scheme (ETS) for particulate matter (PM). A pilot has started at Surat in Gujarat. The scheme will apply to 350 industries in the locality and it will be scrutinised for wider rollout in the country.
China robustly started to tackle its industrial PM emitters a few years ago although the work remains on-going. In its wake India has increasingly made the wrong sort of headlines with horrifically high dust emissions. Delhi, for example, reportedly had PM2.5 emissions of over 440µg/m3 in January 2019. To give this some context, the World Health Organisation’s (WHO) annual upper guideline figure for safe human exposure is 10µg/m3. Research by the Financial Times newspaper suggested that more than 40% of the Indian population is subject to annual PM2.5 emissions of over 50µg/m3.
Air Quality Life Index (AQLI) research reckons that if India were able to meet its national PM2.5 standard of 40µg/m3 then its population would live 1.8 years longer or 4.3 years longer if it met the WHO guideline level. The current situation is an unnecessary tragedy. In strictly structural terms the country’s productivity is being thrown away by damaging the health of its workforce. For comparison amongst other major cement producing countries, AQLI data placed China’s PM2.5 emissions at 39µg/m3, Indonesia at 22µg/m3, Vietnam at 20µg/m3 the US at 9µg/m3. These figures cover all industries in different conditions and climates. If the US can do it, why not the others?
Back on trading schemes, the famous ETS at the moment is the European one for CO2 emissions. Similar schemes are slowly appearing around the world as governments look at what the European Union (EU) did right and wrong. For example, South Africa started up a carbon tax in early June 2019. Yet as the supporting documents by the Gujarat Pollution Control Board (GPCB) point out there have been a variety of ETS systems’ over the years. The US’s Acid Rain Program is generally seen to have achieved significant reductions in SO2 and NOx emissions although the National Emission Standards for Hazardous Air Pollutants (NESHAP) has continued this work. Chile even ran its own PM ETS in the 1990s although the outcomes have been disputed.
One problem with a CO2 ETS, and anthropomorphic or man-made climate change in general, is that it is intangible. Even if sea levels deluge major coastal cities, rising mean temperatures reduce agricultural yields and human populations contract sharply, people will still be arguing over the research and the causes. The beauty of a PM ETS is that if it works you can literally see and feel the results. A famous example here is the UK’s Clean Air Act in the 1950s that banished the fog/smog that London used to be famous for.
The Gujarat PM ETS is a pilot, the results of which will be considered by researchers from a number of US-based universities and the Abdul Latif Jameel Poverty Action Lab. Explicitly, the study plans to use a randomised control trial to compares its results against the command and control style approach used in the rest of the country. On the cement-side various Indian news stories have emerged as state pollution boards have increasingly started fining producers for emission limit breaches. Clearly the government is taking dust emissions seriously. Reduction is long overdue.
Nigeria: Dangote Cement has published its first sustainability report following Global Reporting Initiative (GRI) standards. Key data from the report include a CO2 emissions per tonne of cementitious material of 687kg CO2/t across all operations. Its total CO2 emissions were 16.4Mt. In 2017 it reported estimated total CO2 emissions of 8.45Mt from its domestic operations. The cement producer had an energy consumption of 52M GJ 2018. It had a 49% production capacity utilisation rate at its Nigerian plants. The group said that it supported 37,000 direct, indirect and induced jobs in Nigeria.
Algeria: LafargeHolcim Algeria’s Oggaz cement plant has been awarded ISO 14001:2015 certification for environmental management, according to the El Watan newspaper. The plant has a total cement production capcaity of 3.8Mt/yr, comprising 3.2Mt/yr of gray cement and 0.6Mt/yr of white cement. The unit also has a waste treatment facility.
Cement plays the waiting game
29 May 2019There were two main takeaways from the Global Future Cement Conference that took place in Brussels last week. Firstly, there are not any obvious alternatives to using cement and concrete. Secondly, serious at-scale commercial investment on capturing CO2 process emissions from clinker production is still waiting for the right economic conditions.
Graph 1: Embodied energy versus embodied CO2 of building materials. Source: Hammond & Jones, University of Bath, UK.
Although the conference was heavily focused on Europe, the graph above explains why the cement and concrete industries are sitting pretty right now in the face of mounting environmental activism. The sector may be responsible for 5 - 10% of annual CO2 emissions but, put bluntly, there is simply no alternative. As Karen Scrivner from the Ecole Polytechnique Fédérale de Lausanne (EPFL) explained during her presentation, concrete uses some of the most abundant minerals present on earth, notably silicon and calcium. Alternative chemistries are simply not backed up by available materials. The cement and concrete associations have strongly promoted the unique position by focusing on the whole lifecycle of building materials.
The energy and emissions research needs to be scrutinised much more closely but, if it’s correct, there is no way to maintain modern standards of living without concrete. And, judging from the response by the French public to a badly handled meagre carbon tax on diesel by the so-called Yellow Vest movement, whacking up the price of housing or infrastructure might go down badly, especially in developing countries.
Two immediate ‘outs’ presents themselves. Cement doesn't necessarily have to be made from clinker as Robert McCaffrey’s presentation reinforced (also given at the IEEE/IAS-PCA Cement Conference this year). Future research may find alternatives to clinker and wipe out the cement business in the process. Also, the graph above is based on per kilogramme amounts of each building material. It doesn’t indicate how much of each material is required to build things. Even if clinker-based building materials are irreplaceable, there is no reason why their market share might not decrease. This could have large consequences in a market already burdened by over-capacity.
Graph 2: Comparison of cost of carbon capture technology for the cement industry. Source: European Cement Research Academy (ECRA).
Solid research into carbon capture technology is proceeding apace, from the LEILAC project at HeidelbergCement’s Lixhe plant, to oxyfuel kiln development and other methods, as Jan Theulen from HeidelbergCement demonstrated in his presentation. Off-the-shelf technologies from other industries also exist ready to be used. Today, for example, Inventys has announced plans to test its own CO2 capture technology with Lafarge Canada. Yet there are no commercial-scale installations in Europe. most likely due to the price burden it would place on the end product.
With the European Union (EU) Emissions Trading Scheme (ETS) entering its fourth phase and the carbon price holding above Euro20/t the question is: when will the serious investment begin in Europe? Notably, more than a few major European cement equipment manufacturers attended the Global Future Cement Conference, yet none are offering mature products to capture CO2 emissions. Most or all have projects up their sleeves ready to be developed and sold but orders aren’t being received. The carbon price in Europe is the problem here. If it's too low then nothing happens outside of government subsidy. Too high and cement plants start being shut down because they become too expensive to run. To be fair to the cement sector other carbon emission mitigation strategies are being employed from alternative fuels usage to lowering the clinker factor and other methods but the endgame is based on reducing process emissions.
The challenge for the cement and concrete industry is to show legislators that their materials are essential and irreplaceable. They are doing this. The legislators then need to concoct ways of encouraging mass scale rollout of carbon emissions abatement technology without destroying the cement industry. This is far from certain right now. If nothing else it’s in governments’ interest to get this right because, as the Yellow Vest protests show, if they get it wrong their voters become angry. All of this is happening against the clock as CCU/S is required to get the cement industry past the 2050 2°C maximum warming target set by the Paris Agreement. In the meantime the cement industry is essentially in a holding position on the more far-reaching aspects of CO2 emissions mitigation. Its products are likely irreplaceable but its carbon capture technology has to be encouraged by governments. This means that, for most cement producers, waiting to see what happens next is the way forward.
The 3rd Future Cement Conference and Exhibition is scheduled to take place in Vienna, Austria in 2021
Canada: Sean Monkman, Senior Vice President of Technology Development at CarbonCure Technologies, has been named as Canada’s inaugural Mission Innovation Champion at the fourth annual Mission Innovation Summit (MI4) and 10th annual Clean Energy Ministerial (CEM10) summit hosted by Canada in Vancouver, British Colombia in late May 2019.
Mission Innovation, a global initiative involving 22 countries and the European Commission, has identified carbon capture utilisation and storage (CCUS) as one of eight Innovation Challenges that are key to achieving substantial emissions reductions. Mission Innovation Champions were selected from member countries to celebrate individuals with a track record of progressing creative new ideas that drive the pace and scale of the clean energy revolution.