Global Cement Mixture Carbonation Device Market Strategic Research Report

Scope of the Report

The global Cement Mixture Carbonation Device market size is predicted to grow from US$ 122 million in 2025 to US$ 335 million in 2032; it is expected to grow at a CAGR of 15.6% from 2026 to 2032.

Cement Mixture Carbonation Device is an equipment and process system that utilizes the large amount of waste steel slag generated during steel production to convert carbon dioxide (CO₂) into stable carbonate minerals through a carbonation mineralization reaction, thereby achieving the capture, fixation, and resource utilization of CO₂. Steel slag is rich in alkaline components such as CaO and MgO, which can undergo carbonation reactions with CO₂. CO₂ can be fixed in the steel slag through direct gas/solid or gas/liquid carbonation processes to form mineral products such as calcium carbonate, reducing atmospheric emissions and enhancing the resource value of steel slag. This device typically includes a steel slag pretreatment unit, a reactor, a CO₂ supply and distribution system, and a carbonation control and dehydration treatment system. It is one of the important technological pathways for carbon emission reduction and solid waste resource utilization in the steel industry. Currently, this technology is still in the transition stage from laboratory/demonstration to industrialization, and overall large-scale commercial deployment is limited. The global gross profit margin for Cement Mixture Carbonation Device is projected to be approximately 15%-30% in 2025.

Under global net‑zero ambitions, the steel industry faces mounting pressure to mitigate its significant greenhouse gas emissions. Steel slag, a large volume by‑product of steelmaking, contains high levels of CaO and MgO, which are reactive with CO₂ and make it a promising feedstock for mineral carbonation. Policy mechanisms such as carbon pricing, circular economy mandates, and green procurement are encouraging adoption of innovative CO₂ sequestration technologies. Mineral carbonation of steel slag offers the dual benefit of CO₂ reduction and converting waste into stable carbonate materials that can serve as construction inputs or other industrial uses, aligning decarbonization with resource valorization in integrated steel ecosystems. These trends position steel slag carbon capture technologies as a differentiated decarbonization pathway for the sector.

Despite clear environmental advantages, commercial scale‑up of steel slag carbonation equipment faces technical and economic hurdles. Many processes remain at pilot or demonstration scale, with challenges in controlling reaction kinetics, ensuring process stability at scale, and optimizing reactor designs for variable slag compositions. Markets for carbonate products are still immature, leading to limited revenue streams outside of carbon credits or regulatory compliance. High capital and operational costs, coupled with the absence of robust carbon pricing incentives in some regions, extend investment payback periods. Variability in steel slag chemistry also demands flexible process configurations, raising equipment customization costs and complexity.

Demand for steel slag carbonation systems is emerging from steel producers seeking compliance with emissions targets, as well as from building material manufacturers pursuing greener product portfolios. Carbonated steel slag has potential applications as a supplementary cementitious material, aggregate, or functional filler, enhancing its market value beyond carbon mitigation. As carbon markets evolve and regulatory frameworks reward verified CO₂ sequestration, steel slag carbonation could transition from niche technology to a component of sustainable materials infrastructure. With increasing preference for green construction materials and improved economic incentives, downstream uptake of mineral carbonation technologies is expected to strengthen, fostering integrated growth between decarbonization and circular economy sectors.

This report presents a comprehensive overview of the global Cement Mixture Carbonation Device market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Direct Carbonation
• Indirect Carbonation
• Aqueous Carbonation
• Pressure‑Swing Carbonation

Segment by Sales

• Direct Equipment Sales
• EPC / Turnkey Projects

Segment by Integrated

• Standalone System
• Integrated with Steel Mill
• Combined with CCUS

Segment by Application

• Steel & Iron
• Construction Materials
• Cement & Concrete
• Waste Valorization

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Cement Mixture Carbonation Device market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Steel & Iron, Construction Materials, Cement & Concrete evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact