Researchers from Tianjin University in China have developed an all-organic mixed-matrix membrane designed to capture carbon dioxide from industrial flue gas. The technology selectively allows CO₂ to pass through while offering material durability and the potential for large-scale manufacturing. This was reported by China Daily, a partner of TV BRICS.
Tests under simulated industrial conditions demonstrated that the membrane’s CO₂ permeability increased tenfold, setting a new research benchmark. According to the research team, the material combines high separation efficiency with lower energy requirements and can be manufactured using processes similar to those employed in the production of plastic films.
A preliminary techno-economic assessment estimated the cost of capturing carbon dioxide using the technology at approximately US$38 per tonne under specified process and cost conditions. The researchers believe this approach could make carbon capture more accessible to industries such as steelmaking, cement production and power generation, where emissions are associated with both energy use and industrial processes.
The captured carbon dioxide could also be used as a resource. Potential applications include geological storage in deep saline aquifers and depleted oil and gas fields, as well as the production of methanol, biodegradable plastics and construction materials. Purified CO₂ could additionally be used in beverage manufacturing and cold-chain preservation.
The research team plans to develop large-area membranes, reduce material production costs and test the technology under real industrial conditions. Further work will focus on scaling up manufacturing, developing membrane modules and verifying their long-term performance. The researchers expect that successful industrial implementation could provide an additional tool for reducing emissions and supporting the transition towards more sustainable industrial production.