Air Separation And Carbon Capture – Recent Project Milestones And Industry Momentum

 

Air Separation and Carbon Capture – Recent Project Milestones and Industry Momentum

The industrial gas and carbon management sectors continue to demonstrate remarkable momentum in 2026, with major project announcements, commissioning milestones, and strategic investments spanning multiple continents. This article reviews recent developments that highlight the evolving landscape of air separation technology and carbon capture, utilization, and storage (CCUS).

 

Major ASU Expansions in the United States

In August 2026, industrial gas major Messer announced plans to build a new air separation unit in Bryan, Texas, strengthening its supply network across Central Texas-. The investment reflects the company's strategy of continuing to invest in high-growth regions and technologies-. This follows a broader pattern of ASU expansion across the southern United States, where growing industrial demand-particularly from semiconductor manufacturing, data centers, and energy sectors-is driving capacity additions.

Meanwhile, Air Products is constructing two new air separation units at facilities in Conyers, Georgia, and Reidsville, North Carolina-. These projects underscore the sustained investment in ASU infrastructure to meet rising demand for industrial gases across multiple end-use markets.

 

Large-Scale ASU Projects in Asia

In China, the world's largest metallurgical-grade air separation unit continues to advance. The $150 million energy storage and air separation project in Zhangjiagang is building the largest and most advanced 100,000-grade air separation unit in the global steel industry-. The project recently achieved a key milestone with the successful hoisting of the distillation column, and is scheduled for formal commissioning in March 2027-. This facility represents a significant leap forward in ASU scale and efficiency for metallurgical applications.

At the Shaanxi Coal Group's Yulin Chemical complex, the first 100,000 Nm³/h air separation unit cold box recently completed its topping-out ceremony-. The project plans to construct five units of equivalent capacity, configured with three electrically driven and two steam-driven systems, primarily producing high-pressure oxygen, medium-pressure oxygen, and low-pressure nitrogen. The cold box, standing 60 meters tall, must operate reliably at cryogenic temperatures of -196°C.

In Shandong Province, the Feicheng Air Island project-with a total investment of RMB 100 million-is progressing toward its scheduled trial production in September 2026-. The facility is designed to produce 300 tons of liquid products daily-. Also in Shandong, two additional ASU projects-the Ruizhen Polymer materials ASU and the Yingkou Jianfa ASU-are expected to enter trial production by the end of 2026.

 

International Project Developments

The global nature of ASU demand is evident in recent announcements across multiple regions. Kelington Group is investing RM120 million (approximately US$29.3 million) to build a new merchant air separation unit plant in Maharashtra, India-. Development work commenced in August 2026, with completion targeted for the third quarter of fiscal year 2028-.

In Europe, the SIAD Group has chosen Porto Marghera, Venice, as the location for its new plant dedicated to the construction of large air separation units for international markets-. The new site, scheduled for completion in 2026, positions the company to meet growing global demand for large-scale ASUs-.

In Nigeria, Apex African Gas commissioned a new 70-ton-per-day air separation unit plant in Satellite Town, Lagos, in a project valued at over N10 billion-. The new plant brings the company's total production capacity to 110 tons per day, making it one of the largest domestic industrial gas production capacities in Nigeria-. The facility was commissioned on June 25, 2026-

 

ASU-Integrated Blue Ammonia Projects

The intersection of ASU technology with the energy transition is clearly demonstrated by CF Industries' planned $4 billion blue ammonia project in Louisiana-. Linde will build a $400 million air separation unit at the site to supply oxygen and nitrogen for ammonia synthesis-. The project highlights how ASUs are becoming integral to low-carbon chemical production, providing the essential oxygen for synthesis processes while enabling carbon capture integration-.

 

Carbon Capture Milestones

The CCUS sector has also seen significant progress. In August 2026, a sludge-fired power generation CCUS demonstration project in Yangzhou, China, officially commenced its capture operations-. The project specifically targets low-concentration flue gas (9-12% CO₂) from sludge-fired generators, achieving efficient capture and deep purification with a design capacity of 1,000 tons per year-.

In Hubei Province, a green low-carbon project is accelerating construction to recover 200,000 tons of CO₂ annually-. The project's core raw material-CO₂-comes directly from a neighboring ammonia synthesis plant via a dedicated 4.2-kilometer pipeline-. This closed-loop approach demonstrates how industrial symbiosis can turn waste CO₂ into valuable potassium salts.

In Germany, the Catch4Climate Pure Oxyfuel carbon capture research facility at the Mergelstetten cement plant was officially inaugurated-. The project successfully produced its first clinker in May 2026 and completed its first oxygen supply and initial operating campaign in June-. Oxyfuel combustion-which requires high-purity oxygen from an ASU-represents a direct integration of air separation and carbon capture technologies.

 

Direct Air Capture Advances

Direct air capture (DAC) technology continues to scale. Carbon Engineering launched commercial operations at its Stratos facility in Ector County, Texas, on January 27, 2026-. The facility represents one of the world's largest DAC installations and marks a significant step toward commercial-scale atmospheric CO₂ removal.

Looking ahead, Project Greensand in Denmark is expected to enter operation in 2026-, further expanding the global portfolio of operational carbon capture projects.

 

The Convergence Trend

Several themes emerge from these recent developments:

Scaling for Efficiency: The trend toward larger ASUs-exemplified by the 100,000-grade units in Zhangjiagang and the 120,000 Nm³/h units being deployed-demonstrates the industry's focus on achieving economies of scale. Larger units offer lower capital cost per unit of production, reduced specific power consumption, and greater overall efficiency.

Geographic Diversification: ASU projects are being announced across North America, Europe, Asia, and Africa, reflecting the global nature of industrial gas demand. From Texas to Nigeria, from India to Uzbekistan, investment in air separation capacity is broadly distributed.

Integration with Energy Transition: The CF Industries blue ammonia project and the Catch4Climate oxyfuel facility both demonstrate how ASUs are becoming integral to decarbonization strategies. Whether supplying oxygen for oxy-fuel combustion or providing nitrogen for ammonia synthesis, ASUs are essential enablers of low-carbon industrial processes.

Carbon Capture Maturation: The growing number of CCUS projects reaching operational status-from the 30,000-ton/year facility in Shaanxi to the 1,000-ton/year sludge power plant in Yangzhou-indicates that carbon capture technology is moving from pilot scale to commercial deployment-.

 

Conclusion

The air separation and carbon capture industries are experiencing a period of significant expansion and technological advancement. As industrial demand grows and decarbonization pressures intensify, the integration of these technologies will likely accelerate. For suppliers and end-users alike, understanding these trends is essential for navigating the evolving landscape of industrial gas production and carbon management.