Displaying items by tag: decarbonisation

Spain: Oficemen, the Spanish cement association, has released its roadmap for reducing CO₂ emissions to 2050. The document highlights the potential of new technologies, including carbon capture and storage (CCS), which could decrease the CO2 footprint of the Spanish cement industry by up to 80% in 2050. Using existing the technology the association estimates it could reduce emissions by 35% from a 1990 baseline.

Germany: HeidelbergCement and Aachen University of Applied Sciences (RWTH Aachen) have started a three-year research project ‘CO2MIN’ that started on 1 June 2017 examining the absorption of CO₂ from flue gas by olivine and basalt. The intention is that the carbonised minerals could be used as a value-added additive in the production of building materials. HeidelbergCement and RWTH are supported by the Potsdam Institute for Advanced Sustainability Studies (IASS) and the Dutch start-up Green Minerals. The Federal Ministry of Education and Research (BMBF) is funding the project with Euro3m.

"We are already reducing the CO₂ emissions of our plants very successfully by using alternative fuels and raw materials and by optimising the efficiency of our kilns," said Jan Theulen, Director of Alternative Resources at HeidelbergCement. He added that binding CO₂ in minerals was one approach the company was exploring to reduce its emissions further.

In the first year the research project will focus on the investigation of different minerals in small-scale experiments. The carbonation of the most suitable minerals will then be tested under process conditions in the second year. The experiments will be conducted by the institute of Process Metallurgy and Metal Recycling (IME), which is the coordinator of the RWTH group. Life-cycle assessments (RWTH) as well as analyses of economic aspects and social acceptance (IASS) complete this project phase. In the third year, marketability and acceptance will be further optimised through intensive cooperation with customers.

Norway: Norcem, part of HeidelbergCement Group, has awarded a contract for a concept study of carbon capture at its Brevik cement plant to Aker Solutions. It previously carried out testing with a pilot capture plant at Brevik. Norcem subsequently selected Aker Solutions' technology to be used for a potential facility at the cement plant. The oil and gas engineering company has also won a carbon capture contract from Yara to run a study at its Herøya ammonia plant.

"Aker Solutions can now offer carbon capture plants at lower costs and with less energy demand using a new non-corrosive and environmentally-friendly solvent that has very low degradation," said Oscar Graff, head of carbon capture and storage (CCS) at Aker Solutions. "The solvent is very robust and can be used for various types of flue gases and gives minimum emissions and waste products."

The study for Norcem will design a carbon capture plant that's integrated with the cement factory, including a process to turn the CO₂ into liquid and storage facilities that can be used before shipping. The plant will have a capacity of about 400,000t/yr of CO₂. The Yara study will design and develop a capture plant for the reformer flue gas and will also include liquefaction. Both concept studies are set to be completed in September 2017.

In April 2017 Gassnova, a state-run company for carbon capture and storage, announced the start of the concept studies as part of a goal to establish a complete CCS chain, including capture, transport and permanent storage, by 2022. The concept phase will also seek to establish more accurate cost estimates. The next phase in the process will involve front-end engineering design (FEED) work until around mid-2018 before an investment decision is made by the Norwegian government in the first half of 2019.

Aker Solutions has developed and qualified an improved carbon capture technology since 2008, investing in research and development, testing and operations. The company has gathered experience through design, construction and two years of operations of an amine plant at Technology Centre Mongstad and carried out tests in the US, the UK and Norway using its mobile carbon capture pilot plant.

Morocco: LafargeHolcim, ArcelorMittal, Evonik and Solvay have formed a Low Carbon Technology Partnerships Initiative across the steel, cement and chemicals industries. This new partnership will look at the potential synergies that exist between the manufacturing processes of these three energy intensive sectors, and how these synergies could be harnessed to reduce CO₂ emissions.

As a first step, and following preliminary research, the innovative partnership will produce a study with the technical support of Arthur D Little to identify potential ways to valorise industrial off-gases and other by-products from their manufacturing processes to produce goods with a lower carbon footprint than through the fossil path. The preliminary research has already allowed identification of significant potential in selected trans-sector pathways.

The study is aimed at bringing a fact-based overview of carbon and energy sources from industrial off-gases (first at a European level), and evaluating the technical, environmental and economic feasibility of different Carbon Capture and Usage (CCU) pathways and their potential.

Initial findings from the first step already underway suggest that deploying cross-sector carbon capture and reuse opportunities on an industrial scale could reduce up to 3 GT/yr or 7% of global anthropogenic CO₂ emissions. Existing conversion technologies that could be deployed across the three sectors could utilise by-products in the off-gases to create building materials, organic chemicals and fuel. Increased availability and greater access to renewable energy sources would significantly boost net carbon reduction efforts by those three sectors, within a supportive legislative framework. Cross sector carbon capture and reuse should also result in job creation, to be further investigated.

The study, carried out at European level, is building the ground for similar investigation extended at global level and paves the way for identifying and assessing industrial scale projects on CCU at the interface between the sectors.

“Concrete offers the highest level of life-cycle sustainability performance and we are continuously developing new products and solutions for a low carbon society. This new ambitious partnership will support our mission to cut our net emissions per ton of cement by 40% towards 2030 (versus 1990) and to develop and further deploy low carbon solutions for the construction sector. But to make this a reality, we will need an enabling regulatory framework and support for innovation,” said Bernard Mathieu, Head Group Sustainable Development of LafargeHolcim.

Taiwan: Taiwan Cement plans to expand its microalgae unit to boost astaxanthin production from waste CO₂. The cement producer intends to invest US$6.25m towards enlarging its existing microalgae unit into a 20-hectare outdoor microalgae farm with an estimated annual production value of about US$12m, according to the Tapei Times.

The upgraded farm will start operation in 2017 producing astaxanthin, an input for skincare and health food products. The company hopes to make astaxanthin products that meet universal standards, such as the Good Manufacturing Practice standard, eventually becoming the country’s main supplier of the chemical.

To support the upgrade Taiwan Cement has signed a business development contract with the Industrial Technology Research Institute (ITRI). The two organisations have collaborated since 2011 on developing CO₂ capture technology. As part of the new deal Taiwan Cement is expected to decrease its CO₂ emissions by 4800t/yr.

Europe: The Low Emissions Intensity Lime And Cement (LEILAC) consortium has secured Euro12m in funding over five years from the European Commission Horizon 2020 Grant programme to test Calix’s direct separation process to capture CO₂ emissions from cement and lime production. The consortium comprises HeidelbergCement, Cemex, Tarmac, Lhoist, Amec Foster Wheeler, ECN, Imperial College, PSE, Quantis and the Carbon Trust. The consortium will also contribute a further Euro9m towards the project.

During the first three years, the project will focus on finalising the design of the demonstration plant, to be constructed at the HeidelbergCement plant in Lixhe, Belgium once the necessary permits have been secured. The high temperature Direct Separation Calciner pilot unit will then undergo two years of testing in a standard operational environment, at a feed rate capacity of 240t/day of cement raw meal and 200t/day ground limestone respectively, on a continuous basis for several weeks.

Fundamental research on the process demands and performance will be carried out to demonstrate that the technology works sufficiently and robustly enough to be scaled up to full operational use. The project results will be shared widely with industry at key intervals during the testing.

Calix’s direct separation technology is achieved by re-engineering the process flows used in the best available technology for lime and cement calcination. Carbonate calcination occurs by indirect counterflow heating, and consequentially the flue gases are not mixed with the CO₂ emitted from the carbonate minerals. This technology is already operating at a commercial scale for magnesite calcination. It does not require any separation technologies, new materials or processes. The technology is complementary with other carbon capture methods already developed in the power and cement sector, such as oxyfuel, and can make use of alternative fuels.