3. Test & Demonstration data (IMAGE) National Research Council of Science & Technology Caption (A) Oxidant switching time(air?oxygen) : Less than 1 hour to obtain CO2 purity over 90 vol.% in flue gas. (B-left) Amount of flue gas: decrease of 80% compared to air mode combustion. (B-right) Amount of air pollutants: decrease of 80% for SO2, 85% for NO, and 76% for CO compared to air combustion before flue gas treatment. (C) Secured Oxy-CFBC operation technology with high oxygen concentration over 60% for oxy-combustion: Increase in oxygen concentration decreases the amount of gas flow, and which greatly reduces the size of boiler and down stream facilities, contributing to the reduction of construction cost and operating expenses. Available to double the capacity in the same facility Credit Korea Institute of Energy Research (KIER) Usage Restrictions The sources of photos and research results from KIER must be specified. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.