Audi is working on new technology to filter CO2 directly from the ambient air
German carmaker Audi will work with Krajete, a company specializing in green technology, to filter CO2 from the surrounding air. The modular design of the filtration unit ensures expandability and is suitable for long-term scaling according to the requirements of the plant.
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Both companies are collaborating at a facility in Austria using an inorganic filter material to maximize the effectiveness of Direct Air Capture (DAC) technologies. The ambient air to be filtered does not usually have to be subjected to a pre-drying process, which significantly improves efficiency while reducing costs.
The Austrian facility can filter 500 tons of CO2 per year, although researchers plan to add another module before the end of the year – and that will dramatically increase processing capacities to up to 1,000 tons of CO2 per year. Sequestration costs are kept under control as both companies have been able to identify an optimal flow rate – meaning the process is run at ambient pressure – before carefully monitoring absorber materials and physical conditions.
The collected CO2 is a raw material that could be used for industrial applications or for permanent storage, according to BMW. Filtered air is released back into the environment after the full absorption process is complete.
Hagen Seifert, Head of Sustainable Product Concepts at Audi: “The technology makes it possible to remove CO2 directly from the atmosphere, regardless of location, and is therefore an important decarbonization measure. In addition, the system technology can be expanded in many ways thanks to its modular design.”
This is an important step forward as the Volkswagen Group aims to be carbon neutral by 2050, if not sooner. The Volkswagen Group intends to reduce the ecological footprint of passenger cars and light commercial vehicles by 40% by 2025. Audi will continue to look for realistic ways to filter CO2 and other emissions from the world around us.