Displaying items by tag: carbon capture

US: The California Department of Transportation (CalTrans) has approved the use of Portland limestone cement (PLC) in its projects. The California Nevada Cement Association (CNCA) says that the move has the potential to eliminate 25,500t/yr of CO₂ emissions.

The CNCA plans to achieve cement and concrete carbon neutrality by 2045 through three priority actions. These are investment in promising and critical long-term technologies (crucially carbon capture, utilisation and storage (CCUS) technologies), increased alternative fuel (AF) substitution and the acceptance of PLC for CalTrans projects. Thus, the latest CalTrans decision marks the establishment of one pillar of the CNCA’s ambitious plan for net zero.

Germany: Australia-based Calix says that its LEILAC-2 carbon capture retrofit of HeidelbergCement's Hanover cement plant has passed its financial investment decision. The company is accordingly proceeding with detailed design and long-lead item purchasing. It will launch construction in 2023. Calix added that, due to a number of project risk flag points given the 'market situation,' it will not buy major components until closer to that time.

When commissioned, the installation will capture 0.1Mt/yr of CO₂ and cost an estimated Euro20 - 25/t of CO₂ captured.

Spain: HeidelbergCement is starting the Neuclicem carbon capture use and storage (CCUS) project at its integrated Arrigorriaga plant near Bilbao. Local electricity company Volbas and the Tecnalia Research & Innovation centre are participating in the initiative. The project intends to look at a process based on the mineralisation of alkaline waste, such as residual construction waste or steel slag, by accelerated carbonation using CO₂ from the flue gas at the plant. The resulting materials will then be used as additives in cement production or to reduce the use of clinker. The scheme will study its viability of the process on an industrial scale.

The Neuclicem project has an estimated duration of 14 months. Its results are intended to prepare the way for scaling up to a subsequent industrial prototype. The project is partially financed by Ihobe, an environmental management division of the regional Basque government.

US: The Portland Cement Association (PCA) has told the Department of Energy’s Advanced Manufacturing Office (AMO) that federal policy and support is vital to accelerate the deployment of technologies that can decarbonise the local industrial sector. In its comments to the office, the PCA said that it shares the Biden-Harris Administration’s goal of carbon neutrality by 2050 through its own Roadmap to Carbon Neutrality, which lays out a pathway to achieve this across the cement-concrete-construction value chain by 2050. However, it warned that without strong federal support the AMO’s timeline to reach carbon neutrality across industry was unrealistic due to the “significant technical, legal and economic challenges regarding technologies like carbon capture utilisation and storage (CCUS), and others including hydrogen fuel and kiln electrification.”

“Federal policy must accelerate the significant technology, funding, and market innovation needed for rapid decarbonisation while preserving economic growth and international competitiveness,” said Sean O’Neill, senior vice president of government affairs at the PCA. “The adoption of CCUS is key to achieving deep decarbonisation in the cement industry.”

The PCA added that with the right federal and state policies, CCUS could become scalable within 10 years but infrastructure, policy, permitting and funding challenges remain. It suggested that tax incentive reforms and the use of Department of Energy loan programmes could accelerate early investment and adoption of CCUS.

The use of hydrogen fuels and kiln electrification was mentioned but these technologies are seen as being at least 15 – 20 years away. The association said that hydrogen remained very expensive and there was little current infrastructure for the transport and storage of hydrogen. More research and development is required to start evaluating the efficacy of kiln electrification.

Japan: Mitsubishi Heavy Industries Engineering has won the Ministry of Economy, Trade and Industry’s highest prize for contributions to industrial decarbonisation, the Minister’s Award, for its development and commercialisation of its CO₂ capture system. The system is based on KS-21 solvent technology, developed in partnership with Kansai Electric Power, and the company’s Advanced KM CDR Process capture model. Mitsubishi Heavy Industries Engineering has successfully supported cement industry customers in implementing the system.

Italy: Buzzi Unicem has signed an agreement with Italgas to collaborate on the development of power to gas plants for implementation in combination with carbon capture systems. Their research will assess the possibility of producing and using synthetic methane obtained from the combination of green hydrogen from power to gas plants with captured CO₂.

Buzzi Unicem’s group technical director at Luigi Buzzi said "We are very interested in the opportunity to collaborate with Italgas as an experienced partner to develop a project that is fully integrated into our industrial investment plan aimed at identifying technologies for capturing and reusing the CO₂ released by our plants, in line with the roadmaps defined by industry associations.” He added “Our aim is to responsibly contribute to containing climate change by developing CO₂ capture technologies and identifying the best solutions for its reuse. We are currently experimenting with calcium looping technology for capturing the carbon dioxide released by the production process at our plant in Vernasca, Piacenza. Thanks to the EU Horizon 2020 Cleanker project, it will be possible to assess the technical and economic sustainability of this technology and estimate the changes to the plant and the investments required to adopt this process in existing cement plants.”

Australia: RMIT University in Melbourne, Victoria, has developed a new method of carbon capture, called the bubble column method. The method uses liquid gallium at 100 – 120°C, through which flue gas is bubbled. This activates the CO₂, leading to oxidation of the metal. The captured carbon accumulates on the surface of the pool.

Gallium is a by-product of bauxite and zinc ores mining. The United States Geological Service (USGS) has estimated its global reserves in these ores alone as 1Mt.

Project co-lead Torben Daeneke said “Turning CO₂ into a solid avoids potential issues of leakage and locks it away securely and indefinitely. Because our process does not use very high temperatures, it would be feasible to power the reaction with renewable energy.” He added “Ideally the carbon we make could be turned into a value-added product, contributing to the circular economy and enabling the carbon capture and storage (CCS) technology to pay for itself over time.”

The Australian Government plans to invest US$719m in low emissions technologies by 2050 under its Net Zero Plan.

Spain: LafargeHolcim España has announced the launch of a joint venture called ECCO2 with Carbon Clean and Sistemas de Calor. The joint venture will develop carbon capture technology for use at the producer’s Carboneras cement plant in Almería. It will then seek to market captured CO₂ from the plant for use as a gas in local agricultural greenhouses. When commissioned in early 2023, the carbon capture system will have the capacity to capture 10% of the Carboneras plant’s CO2 emissions.

Norway: Germany-based MAN Energy is supplying a compressor system for a carbon capture and storage (CCS) unit being built at Norcem’s Brevik cement plant. The scope of supply includes an RG 63-7 type electrically-powered compressor train. The steam generators cool the CO₂ mixture between the compressor stages and generate steam that is in turn used for capture. The project will be the first to use the ‘Carbon Capture Heat Recovery’ technology (CCWHR) developed by MAN and Aker Carbon Capture. This new process allows the heat emerging from the compressor system to be recovered and used as steam to meet approximately one third of the total heat demand from the Aker Carbon Capture plant. Consequently, MAN says that the system solution demands less energy compared with conventional carbon-capture technologies.

Alexander Sobolyev, Head of Standardisation & Solutions at MAN Energy Solutions, said: "As part of the Norcem project, the digital-twin-based engineering approach of MAN Energy Solutions has led to concrete optimisations. The dynamic process simulation showed that originally planned system components, including heating, valves and additional pipes for safe plant operation, were not required. The time taken for a cold start of the plant can thus be reduced from around 12 hours to 20 minutes – an important characteristic as quick-start capability is always a central criterion for renewable energies."

Australia: Boral says that its emissions reduction targets have been approved by the Science Based Targets Initiative (SBTi) as being consistent with the levels required to meet the goals of the Paris Agreement. Boral released its targets in August 2021 when it said it intends to reach net-zero emissions by no later than 2050. It subsequently joined the SBTi’s Business Ambition for 1.5°C and the United Nations Framework Convention on Climate Change Race to Zero campaign.

The Australia-based building materials company plans to reduce its Scope One and Two emissions by 46% by 2030. It also plans to decrease its relevant Scope Three emissions per tonne of cementitious materials by 22%. It intends to do this by: transitioning to 100% renewable electricity by 2025 and increasing alternative fuels usage at its Berrima plant kiln; growing the proportion of revenue from its lower carbon concrete product range and optimising the efficiency of its cement plant; reducing transport emissions in its own and contractor fleet; prioritising lower carbon intensity suppliers; and exploring and testing emerging carbon capture use and storage technologies.

Boral’s Chief Finance and Strategy Officer, Tino La Spina, said “Boral is determined to become a leading innovator in sustainability through decarbonisation of cement and concrete and increasing our contribution to a more circular economy” He added “We continue to support our customers in their transition to net zero, broadening our range of high performing lower carbon concrete products to cater for all building and infrastructure applications, and offering Climate Active−certified net carbon neutral concrete.”