Technological Leap in Linköping – Biogas CO₂ Upgraded for Food Use
biogas production to food-grade quality. Using a so-called CCU (Carbon Capture and Utilization) facility, the biogenic CO₂ is further purified using carbon filters and drying, then cooled into liquid form and thoroughly analyzed. The result is a new product – food-grade liquid carbon dioxide – with a production capacity of 20,000 tons per year.