CO₂ recovery in the gas industry

The gas industry relies on highly complex thermal and chemical processes, in which CO₂ is often produced as an unavoidable by-product. Rather than releasing this CO₂ unused into the atmosphere, recovery from flue and process gases offers the opportunity to reduce emissions whilst simultaneously obtaining a valuable raw material. Modern CO₂ recovery technologies thus lay the foundation for more efficient, sustainable and economically optimised gas production.

CO₂ Recovery from Gas Industry Processes

In the gas industry, CO₂-containing gas streams are generated in a variety of ways. These can be specifically recovered to avoid raw material losses whilst simultaneously improving the environmental footprint. Typical sources include both flue gas streams and by-products from industrial processes. By utilising modern recovery technologies, companies can derive economic benefits whilst also meeting regulatory and environmental requirements.

Stack Gas Recovery from Industrial Processes

CO₂ from flue gas streams is generated in particular during the combustion of process gases, in steam generators or boiler plants, and during thermal processes in air separation plants and gas processing facilities. These streams are continuous, of sufficient volume and offer stable process conditions, enabling efficient recovery.

State-of-the-art absorption systems selectively separate the CO₂ from other gases, such as nitrogen, oxygen or carbon monoxide, and subsequently feed it back into the cycle. Companies thus benefit from a reliable technology that does not disrupt production operations whilst significantly reducing emissions.

Recovery from By-Products

In addition to flue gas streams, the gas industry also produces CO₂-rich by-products that are suitable for recovery. These include CO₂ generated during the production of industrial gases, purification and separation processes in which pure CO₂ is produced as a by-product, and air separation processes involving CO₂ separation. These sources provide particularly pure CO₂, which can be reused directly or sold. The use of such by-products minimises waste, increases resource efficiency and strengthens the company’s sustainability strategy.

CO₂ as a Valuable Raw Material and a Contribution to Sustainability

The CO₂ recovered from flue gas or by-products can be used in a variety of ways – whether for industrial processes, chemical production or sale to external customers. Systematic recovery not only reduces operating costs but also significantly cuts CO₂ emissions. This helps companies achieve their ESG goals and climate strategies and demonstrates an active commitment to environmental protection and sustainable production.

Why ASCO is the Right Partner

ASCO supports companies in the gas industry throughout the entire implementation of CO₂ recovery projects – from the initial technical analysis through planning and installation to operation and service. Our systems can be flexibly integrated into existing production processes for both flue gas and by-product plants. With high operational reliability, energy efficiency and durability, ASCO ensures that recovery plants run optimally and that companies can derive maximum benefit from their CO₂ streams.

Contact us

Gas Industry