PRODUCT CARBON FOOTPRINT: TRUST DESPITE COMPETITION
—— A product’s carbon footprint is becoming increasingly important for companies and the market. TÜV SÜD offers to verify this—and supports companies in gaining the trust of clients and consumers.
DAC processes require huge fan blowers. These pull in air containing carbon dioxide, filter it and then expel it. There are two ways to capture the gas: amine scrubbing uses a solvent derived from ammonia that separates carbon dioxide out of the air. With carbon-dioxide absorption, a substance such as caustic soda reacts with the carbon dioxide to form a compound, which is then split to obtain pure the carbon dioxide.
Companies around the world are working to make DAC viable on a large scale. Big pilot projects can be found in Switzerland, Iceland and in the United States, for example. Various manufacturers are also competing to offer the lowest price per extracted ton: this currently ranges from 90 to 250 euros, depending on the company.