![]() Because the carbon is placed underground, the brand with the Four Rings is helping to close the cycle by permanently storing the bound CO 2 in the ground. Audi is extending this successful partnership with the project in Iceland and taking it to the next level. Two years ago the two companies built a facility in Hinwil, Switzerland, that filters CO 2 from the air and provides it to the beverage industry, where it is converted to carbonic acid. ![]() We are contributing to decarbonization through our involvement in the Climeworks CO 2 capturing project.” Audi is once again following its holistic approach here and is participating in the project to promote the development and meaningful implementation of innovative climate protection technologies.Īudi has been supporting the development of CO 2 capturing technology from the Zurich-based environmental start-up Climeworks since 2013. Hagen Seifert, Head of Sustainable Product Concepts at Audi, says, “From a scientific perspective, the adsorption of carbon dioxide from the atmosphere is an important measure in addition to reducing emissions for reaching the Group’s climate targets. Furthermore, the rock in Iceland has the ideal composition for storing large amounts of CO 2. The particularly high geothermal energy means that the Earth’s heat can be converted to electricity cost-effectively and virtually CO 2 neutrally. Its volcanic origin makes the country one of the world’s most potent geothermal regions. Iceland is one of several places on Earth offering the ideal conditions for this process. The technology can also be scaled up to the megaton-per-year range and thus harbors great potential from the future. This high reduction capacity makes the facility particularly efficient. The direct air capture technology from Climeworks boasts two major advantages: Lifecycle analyses show that 90 percent of the CO 2 filtered out of the air is effectively and permanently stored underground. ![]() 80,000 trees would be needed to bind this amount naturally. One quarter of that will be credited to Audi. The facility will operate 24 hours a day, seven days a week, and will filter 4,000 metric tons from the atmosphere each year. The water returns to the cycle of the geothermal power plant. The CO 2 molecules react through natural mineralization processes with the basalt rock and are converted to carbonates over a period of several years, thus permanently storing the CO 2 underground. Water from the Hellisheiði power plant then flows through the facility and transports the carbon dioxide roughly 2,000 meters below the surface of the Earth. When this filter is saturated with CO 2, it is heated to 100 degrees Celsius using waste heat from a nearby geothermal plant to release the CO 2 molecules. ![]() This uses a specially developed adsorbent to bind the CO 2 in the air. The facility first draws in air and feeds it into the CO 2 collector, which contains a selective filter material. Climeworks’ new facility in Iceland transports the CO 2 filtered out of the air below the Earth’s surface, where natural processes then mineralize it. The carbon dioxide is thus permanently removed from the atmosphere. With direct air capture technology, carbon dioxide is extracted from the ambient air and air free of CO 2 is returned to the atmosphere. The process – how the CO 2 gets deep underground ![]()
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