Displaying items by tag: oxyfuel

Belgium: Heidelberg Materials has announced an upcoming project called Anthemis at its subsidiary CBR's Antoing cement plant in Hainaut. The project will implement Heidelberg Material's OxyCal model, which combines Oxyfuel and amine-based carbon capture technology. When operational, the system will capture 800,000t/yr of CO₂, reducing the Antoing cement plant's CO₂ footprint by 97%.

Heidelberg Materials chair Dominik von Achten said “We are excited to add yet another pioneering technology to our CCUS project portfolio, and to build on what we have already achieved in terms of research and innovation. From the Antoing plant alone, we will be able to offer more than 15Mt of carbon-free cement to the construction market during the first 10 years of operation." Von Achten concluded "This is a key contribution to Belgium’s transition to net zero greenhouse gas emissions.”

Germany: The Catch4Climate project says it is ready to build an oxyfuel pilot unit at Schwenk Zement’s Mergelstetten plant following approval by the Stuttgart Regional Council. The project comprises Dyckerhoff, Heidelberg Materials, Schwenk Zement and Vicat, and It has set up a research company called CI4C to run it. Over Euro120m will be invested towards building a dedicated 450t/day production line to test the oxyfuel process. Jürgen Thormann, the Technical Managing Director of CI4C, said that this is the first time a so-called ‘pure’ oxyfuel process will be used for CO₂ capture. At a later stage in the project the consortium plans to use the captured CO₂ to produce so-called ‘reFuels’, climate-neutral synthetic fuels such as kerosene for aircraft, with the help of renewable electrical energy. Commissioning of the unit is scheduled for mid-2024.

Belgium: Holcim and TotalEnergies have signed a memorandum of understanding (MOU) to work towards the full decarbonisation of the Obourg cement plant. Various energies and technologies will be assessed for the capture, utilisation and sequestration (CCUS) of around 1.3Mt/yr of CO₂ emitted by the unit. The project will include working towards building an oxyfuel switchable kiln as part of an upgrade project at the plant and the transportation and use of the captured CO₂ by TotalEnergies for a synthetic fuel producing scheme and/or deposit in geological storage in the North Sea.

TotalEnergies will also assess the development of renewable projects to power a new electrolyser, which would generate the green hydrogen needed to produce synthetic fuels. This new renewable energy production capacity would also power Holcim’s new oxyfuel kiln. Finally, the oxygen emitted by the electrolyser would be used to fuel the new kiln.

Bart Daneels, the chief executive officer of Holcim Belgium said “Cement industry decarbonisation is extremely challenging because of the process's inevitable CO₂ emissions, which put us firmly in the hard-to-abate sector. CCUS is vital for Obourg to become the first net carbon neutral clinker plant in northwest Europe. We are very happy to work with TotalEnergies to accelerate the development of these CCUS solutions for GO4ZERO. By joining the first movers, we want to set the standards for future clinker manufacturing plants.”

It’s been a good week for carbon capture projects in Europe with the announcement of who the European Union (EU) has selected for a grant from its Innovation Fund. 17 large-scale projects have been pre-selected for the Euro1.8bn being doled out in the second round of awards. On the cement and lime sector side there are four projects. These include projects at Holcim’s Lägerdorf cement plant in Germany, HeidelbergCement’s Devnya Cement plant in Bulgaria, Holcim’s Kujawy plant in Poland and Lhoist’s Chaux et Dolomites du Boulonnais lime plant in France. Large-scale in this instance means projects with capital costs over Euro7.5m. To give readers some sense of the scale of the projects that the EU has agreed to pay for, if the funding was shared out equally between the current bunch, it would be a little over Euro100m per project. This is serious money.

Devnya Cement’s ANRAV carbon capture, utilisation and storage (CCUS) project in Bulgaria has received little public attention so far so we’ll look a little more closely at this one first. No obvious information is available on what capture technology might be in consideration at the plant. HeidelbergCement’s leading experience in carbon capture technology at cement plants gives it a variety of methods it could use from a solvent scrubbing route to something less common. What the company has said is that, subject to regulatory approval and permitting, the project could start to capture 0.8Mt/yr of CO₂ from 2028.

What has also been revealed is that the project is linking up via pipelines to a depleted part of the Galata gas field site in the Black Sea. Oil and gas company Petroceltic Bulgaria is a partner and the aim of the project is to start a CCUS cluster in Eastern Europe. with the potential for other capture sites in Romania and Egypt to join in. This is noteworthy because much of the focus for the burgeoning cement sector CCUS in Europe so far has been on usage on local industrial clusters or storage in the North Sea.

The other new one is the Go4ECOPlanet project at Holcim’s Kujawy plant in Poland. Lafarge Cement is working with Air Liquide on the project. The latter will be providing its Cryocap FG adsorption and cryogenics technology for direct capture of flue gas at the plant. The transportation of the CO₂ is also interesting here as it will be by train not pipeline. Liquid CO₂ will be despatched to a terminal in Gdańsk, then transferred to ships before being pumped down into a storage field under the North Sea.

Turning to the other two grant recipients, the Carbon2Business project plans to capture over 1Mt/yr of CO₂ using a second generation oxyfuel process at Holcim Deutschland’s Lägerdorf cement plant. This project is part of a larger regional hydrogen usage cluster so the captured CO₂ will be used to manufacture methanol in combination with the hydrogen. Finally, Lhoist’s project at a lime plant in France is another team-up with Air Liquide, again using the latter’s Cryocap technology. The capture CO₂ will be transported by shared pipeline to a hub near Dunkirk and then stored beneath the North Sea as part of the D'Artagnan initiative. Around 0.61Mt/yr of CO₂ is expected to be sequestered.

The key point to consider from all of the above is that all of these projects are clear about what is happening to the CO₂ after capture. The days of ‘carbon capture and something’ have thankfully been left behind. CO₂ transportation infrastructure is either being used or built and these cement plants will be feeding into it. This will inevitably lead to questions about whether all these new CO₂ networks can support themselves with or without EU funding but that is an argument for another day.

Finally, in other news, four residents from the Indonesian island of Pulau Pari started legal proceedings against Holcim last week for alleged damages caused by climate change. Industrial CO₂ emissions are unquestionably a cause of this along with other sources but what a court might think about this remains to be seen. Yet, it is intriguing that the plantiffs have decided to go after the 47th largest corporate emitter rather than, say, one of the top 10. Regardless of how far the islanders get this is likely not to be last such similar attempt. If the case does make it to court though it seems likely that Holcim will mention its work on CCUS such as the two projects above. Only another 200-odd cement plants in Europe to go.

Germany: Holcim Deutschland announced a planned upgrade to its Lägerdorf cement plant’s kiln on 14 July 2022. The producer will install a second generation oxyfuel kiln, which uses an air separation unit to supply oxygen directly, emitting CO₂-rich flue gas. A new carbon capture system will supply captured CO₂ to a synthetic hydrocarbons plant, which will produce methanol for other industrial applications. The upgrade will result in the capture of 1.2Mt/yr
of CO₂ emissions and make Lägerdorf one of the world’s first carbon neutral cement plants, according to Holcim Deutschland.

The project, called Carbon2Business, was among four cement plant projects and 13 other EU-wide projects to win a share of a US$1.81bn EU Innovation Fund funding pot. CEO Thorsten Hahn acknowledged that the awarding of funds was ‘good news for Holcim and all partners working with us to decarbonise cement.’ He said “Climate change means cement change.”

Germany: ThyssenKrupp Industrial Solutions’ Polysius division says that it has been commissioned by Buzzi Unicem, HeidelbergCement, Schwenk Zement and Vicat to build a pure oxyfuel kiln system at the Mergelstetten cement plant as part of the Cement Innovation for Climate (CI4C) project. No dates of the start of construction or final project commissioning of the industrial trial have been disclosed. CI4C was originally formed in 2019.

The Polysius pure oxyfuel process is a new type of clinker production process in which the otherwise normal ambient air is replaced by pure oxygen in the kiln combustion process. One advantage of the technology is that atmospheric nitrogen is eliminated from the clinker burning process leading to much higher concentrations of CO₂ in the exhaust gas compared to a conventional kiln. As such the process aims to concentrate, capture and reuse almost 100% of the CO₂ produced in a cost-effective manner. The medium-term goal is to further process the captured CO₂ with the help of renewable energy into products such as kerosene for air traffic.

Germany: Two studies looking at how to prepare investments for the conversion to an oxyfuel process have been completed at Hocim’s Germany’s Lägerdorf cement plant. The projects were running with technology partners ThyssenKrupp Industrial Solutions and Linde. Project Oxyfuel100, part of the Westküste100 initiative, was finalised in mid-April 2021. In addition to the oxyfuel process, the technical and economic feasibility of the downstream CO₂ extraction, processing and forwarding was examined. The results of the feasibility study were reported as being “extremely positive.”

Germany: The Catch4Climate project has moved into the planning stage of its oxyfuel pilot plant at the Mergelstetten cement plant. The group, comprising Buzzi Unicem’s subsidiary Dyckerhoff, HeidelbergCement, Schwenk Zement and Vicat, signed a letter of intent with the state’s prime minister and transport minister in Stuttgart in mid-November 2020.

The consortium intends to build and operate its own demonstration plant on a semi-industrial scale, to use the oxyfuel process to capture CO₂. In the future, the captured CO₂ will be used to produce so-called ‘reFuels’, climate-neutral synthetic fuels such as kerosene for air traffic, with the help of renewable electrical energy.

The cement producers formed CI4C – Cement Innovation for Climate in late 2019. The aim of the Catch4Climate project is to create the basis for a large-scale application of CO₂ capture technologies in cement plants enabling the later use of CO₂ as a raw material in other processes such as a carbon capture and utilisation/storage.

Germany: The Westküste100 green hydrogen project has received funding approval from the Federal Ministry of Economic Affairs. The plan is backed by an investment of Euro89m, with Euro30m of this total approved for the project’s launch in August 2020. The initiative intends to produce green hydrogen, transport it in the gas network, use it in industrial processes and to interlink different material cycles within the existing infrastructure. The consortium brings together ten partners: EDF Deutschland, Holcim Deutschland, OGE, Ørsted Deutschland, Raffinerie Heide, Heide’s municipal utility, Thüga and ThyssenKrupp Industrial Solutions, along with the Region Heide development agency and the Westküste University of Applied Sciences.

“An electrolysis plant with a capacity of 700MW - this is our vision and the next milestone in implementing the development targets laid down in the national hydrogen strategy by 2030,” said Jürgen Wollschläger, managing director of Raffinerie Heide and coordinator of the Westküste100 project.

The funding approval enables work to begin on the first phase of the project, which is set to run for five years. A newly formed joint venture, H2 Westküste, comprising EDF Deutschland, Ørsted and Raffinerie Heide, is to build a 30MW electrolyser which will produce green hydrogen from offshore wind energy and provide information on the operation, maintenance, control and grid compatibility of the equipment.

In a later stage of the project hydrogen from both electrolysis and CO₂ from a cement plant in Schleswig-Holstein will be used in the process. During the initial phase of the Westküste100 project preparations will be made for converting the Lägerdorf cement plant to an oxyfuel combustion process.

Thorsten Hahn, chief executive officer (CEO) and chairman of Holcim (Deutschland) said, “For us, as a manufacturer of building materials, the funding approval is a key milestone on the way to decarbonising cement production. Now all of us involved in Westküste100 must move forward quickly, decisively and dynamically in order to achieve our ultimate goal of cross-sectoral coupling on a large industrial scale in the coming years.”

If you needed a sign that the cement industry has become serious about carbon capture it was the presence of two organisations offering CO₂ transport and storage capacity in northern Europe at last week’s Innovation in Industrial Carbon Capture Conference 2020 (IICCC). Both Norway’s Northern Lights and the Rotterdam CCUS (Project Porthos) were busy at their stands during the event’s exhibition. Meanwhile, Cembureau, the European Cement Association, said that it will work on finding other potential storage sites for CO₂ and on identifying existing gas pipelines that could be converted. The industry is planning what to do about CO₂ transport and storage.

As with the previous IICCC event in 2018 the heart of the programme was the Low Emissions Intensity Lime And Cement (LEILAC) project. Since then Calix’s 60m tall pilot Direct Separation Calciner unit has been built at the HeidelbergCement cement plant in Lixhe and has been tested since mid-2019. Early results look promising, with CO₂ separation occurring, calcined material produced and the tube structure and mechanical expansion holding up. Problems with thermocouples failing, blockages and recarbonation at the base of the tube have been encountered but these are being tackled in the de-bottlenecking phase. Testing will continue well into 2020 and plans for the next demonstration project at another cement plant in Europe are already moving ahead. LEILAC 2 will see industry partners Cimpor, Lhoist, Port of Rotterdam and IKN join Calix, HeidelbergCement and other research partners to work together on a larger 0.1Mt/yr CO₂ separation pilot scheduled for completion in 2025.

Alongside this HeidelbergCement presented a convincing vision of a carbon neutral future for the cement industry at the IICCC 2020. It may not be what actually happens but the building materials producer has a clear plan across the lifecycle chain of cement. It is researching and testing a variety of methods to capture CO₂ process emissions, is looking at supply chains and storage sites for the CO₂ and is working on recycling concrete as aggregates and cementations material via recarbonation. In terms of carbon capture technology, an amine-based industrial scale CCS unit looks likely to be built at Norcem’s Brevik plant in the early 2020s. HeidelbergCement’s other joint-research projects – direct separation and oxyfuel – are further behind, at the pilot and pre-pilot stages respectively. Each technology looks set to offer progressively better and cheaper CO₂ capture as they come on line.

Or put another way, cement companies in Europe could build industrial scale amine-based carbon (CC) capture plants now. Yet the game appears to be to wait until the cost of CCS falls through new technology versus the rising emissions trading scheme (ETS) price of CO₂. CC is expected to become economically feasible in a decade’s time, sometime in the 2030s. At which point there might be an upgrade boom as plants are retrofitted with CC units or new production lines are commissioned. Other ways of reducing the cement industry’s CO₂ emissions, of course, are being explored by other companies such as further reducing the clinker factor through the use of calcined clays (LC3 and others), solar reactor or electric-powered kilns and more.

The usual problem of how the construction industry can cope with a higher cost of cement was acknowledged at IICCC 2020 but it is largely being worked around. Higher priced cement poses competitive issues for specifiers and construction companies but it is widely expected to result in price rises below 5% for most residential end users. In the short-term government policy such as requiring low carbon cement in state building projects could stimulate the market. The start of this process can be seen already with the use of slag cements in various infrastructure projects.

Hans Bergman, Head Unit ETS Policy Development at the Directorate-General for Climate Action (DG Clima) partly addressed the cost issue by talking about the EU Green Deal. The EU wants to meet its new targets but it also wants to let gross domestic product (GDP) rise whilst greenhouse emissions fall. The EU ETS is its principle vehicle for this but the commission is wary of changes, such as making modifications linked to CCS, in case it undermines the system. Discussions are ongoing as the work on the Green Deal continues.

IICCC was a wider forum beyond just what LEILAC is up to. To this extent the CC projects involve multiple partners, including those from other cement companies like Cemex and Tarmac (CRH) in LEILAC and Dyckerhoff (Buzzi Unicem), Schwenk Zement and Vicat in the oxyfuel project. The decarbonisation fair included representatives from Vicat’s FastCarb project and Polimi’s Cleanker. Speakers from the European Climate Foundation, Acatech, INEA, TCM, SINTEF and Lhoist were also present.

During one speaker discussion Calix was described as the 'Tesla' of industrial CC by one speaker, who said that, “…there is a genuine competitive opportunity for those bold enough to grasp it.” Calix’s managing director Phil Hodgson enjoyed the accolade but the point was that leading innovation or setting the agenda offers advantages. In the case of industrial CC for the cement industry, change feels a step closer.