• ​Mainly the rubbery Polyactive® was investigated since its CO2/N2/H2O gas permeation data were known.​
• A PVAm/PVA facilitated transport membrane and a TR-PBI glassy polymer membrane also were investigated for variation and comparison.​
• The experiment was conducted at the North Rhine-Westphalia (NRW) power plant.​
• The hard coal grade “Klein Kopje” was utilized.​
• The net power generation was 1322kWh electricity/metric ton CO2.​
• The CO2 emission was 757 g CO2/kWh electricity.​
• The flue gas 50 Celsius degree and 1 atm, which was cooled down to 30 Celsius degree for the purpose of this study.​
• Parameters:​

      Different operational modes​
          - Vacuum on the permeate side​
          - Compression on the feed side​
          - Combination of the two above​
​
      Different feed to permeate pressure ratios​
     ​     - Feed: 1 atm, permeate: 100, 125, 250 mbar (ratios: 10, 8, 4, respectively)​
         - also, for each pressure ratio, different membrane areas were investigated.