Development of PSA technology for the separation of carbon dioxide from blast furnace gas

Emission of carbon dioxide from steel makers accounts for 15% in Japan. Blast furnace gas is the main origin of carbon dioxide exhaustion. To reduce its exhausting amount, the pressure swing adsorption (PSA) separation technology is currently under development in JFE Steel. Based on the laboratory experiments, the bench scale plant with 3 tons per day capacity, which is called "ASCOA-3," was constructed in West Japan Works (Fukuyama) and the separation test with actual blast furnace gas was conducted in various conditions. The concept of gas separation technology utilizing PSA with unusually enormous scale was constructed base on these experimental results.