With mining operations accounting for significant global greenhouse gas emissions, decarbonization has become a pressing priority. The growing demand for minerals further adds to this challenge, as extraction and processing release substantial emissions. Without effective measures, emissions from mining activities will continue to rise.
Here, we explore how carbon capture, utilization, and storage (CCUS) offers a viable path to reduce emissions across mining’s operational and supply chain processes.
What is CCUS?
Carbon capture, utilization, and storage (CCUS) is a set of technologies that reduce carbon dioxide emissions from industrial activities. These technologies capture carbon dioxide from sources like power plants and refineries before it enters the atmosphere. The captured gas is then used in various applications such as fuel production or stored underground.
Trends in the CO2 Capture Project Pipeline from 2015 to Q1 2024
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What are the different scopes of emissions?
Greenhouse gas emissions from mining are classified into three scopes based on their source and impact:
- Scope 1 emissions come from direct fuel combustion in mining equipment and on-site processing.
- Scope 2 emissions result from purchased electricity used in extraction, refining, and processing.
- Scope 3 emissions cover downstream activities such as transport, steelmaking, and other industrial applications.
How does the rising demand for minerals increase emissions?
The mining industry faces mounting pressure to lower emissions as mineral demand grows across sectors. Copper, nickel, lithium, and cobalt production must expand to support renewable energy, electric vehicles, and battery storage. Increased extraction and processing of these resources have intensified emissions across mining operations and supply chains.
Increased demand leads to deeper mines and lower-grade ores, requiring more energy for extraction. Processing these ores generates emissions through crushing, grinding, and chemical treatments used for refinement. The push for high-purity materials intensifies energy consumption across every stage of mineral processing.
Supply chains contribute additional emissions through transportation, smelting, and manufacturing of mineral-based products. Many operations depend on fossil fuel-powered shipping and rail networks to move materials across continents. Without cleaner alternatives, emissions from logistics remain a major challenge in the mining industry.
What are the applications of CCUS in mining?
CCUS offers the mining sector multiple solutions to reduce emissions across various operations. Here are some of the key applications.
Capturing CO₂ from diesel generators
Small-scale carbon capture units help mining operations reduce emissions from diesel generators. These units capture CO₂ directly at the source, preventing its release into the air. This lowers the environmental impact of remote mining sites that depend on diesel power.
Potential GHG emissions reduction & cost increment in iron ore mining due to CCS
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Integrating carbon capture with diesel generators can cut emissions by 20%. This adjustment raises production costs by 0.5% per ton of iron ore, keeping expenses manageable. Large-scale capture in steel production lowers emissions by 64%, but costs rise by 122%.
CO₂-enhanced coal mine methane recovery
Coal mining releases methane, a greenhouse gas, during extraction and storage. Injecting captured CO₂ into coal seams enhances methane recovery while reducing vented emissions. This limits environmental impact by repurposing carbon for energy production.
Potential GHG emissions reduction & cost increment in coal mining due to CCS
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Implementing this process raises costs by 44% per ton of coal, affecting long-term economic feasibility. Despite reducing methane venting by 19%, concerns remain about potential CO₂ re-release during extraction. Regulatory incentives and technological advancements are necessary to balance emissions reduction with financial viability.
Mineral carbonation of tailings
Mining waste materials, such as nickel tailings, have natural properties that enable CO₂ absorption. Accelerated mineral carbonation enhances this process by converting CO₂ into stable mineral compounds.
Potential GHG emissions reduction & cost increment in nickel mining due to CCS
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Mineral carbonation of nickel tailings offers a 17% reduction in emissions. The process requires less than a 1% cost increase, making it a more economical approach. Optimization of weathering techniques could improve its effectiveness, further lowering environmental impact.
To explore more CCUS applications in mining along with their potential, feasibility, and cost implications, access our complete report.
How can PreScouter help?
PreScouter provides customized research and strategic insights to support industries in adopting CCUS solutions. Here are the key ways we can assist.
- Finding regional regulations: We help identify CCUS regulations and material standards across different countries for mining applications. Understanding these guidelines helps companies select approaches that align with regional requirements.
- Accessing CCUS project data: We maintain a database of CCUS projects, including feasibility studies and large-scale implementations. This resource allows businesses to evaluate successful strategies and assess their suitability.
- Identifying industry partners: We conduct research to map key players and potential collaborators in the CCUS space. Connecting with established companies accelerates the adoption of viable solutions.
- Assessing market dynamics: We analyze industry trends, technological advancements, and financial factors influencing CCUS adoption. This information helps businesses plan investments and anticipate regulatory changes.
- Technical consultation and feasibility analysis: We provide expert evaluations of CCUS technologies, assessing efficiency, scalability, and cost impact. These insights guide decision-making and optimize implementation strategies.
