(152k) Carbon Capture Demonstrated at ~1 Tonne CO2/Day Scale By an Integrated Membrane Skid
AIChE Annual Meeting
2023
2023 AIChE Annual Meeting
Separations Division
Poster Session: Separations Division
Tuesday, November 7, 2023 - 3:30pm to 5:00pm
An integrated membrane skid was then constructed, where 2 SW membrane modules were arranged to form an enriching cascade. The 8"-diameter prototype SW module previously tested at CAER was installed as the primary CO2 capture stage, while a smaller SW module (5" diameter and 12 m2 membrane area) was used to further enrich the CO2 to >95% purity. By using a simulated coal flue gas (13% CO2), the skid was operated at steady-state for 800 h with 91.0% of the CO2 removed from the flue gas, delivering 1.33 tonne/day CO2 product at 95.5% dry purity.
The bench skid was then installed at the National Carbon Capture Center (NCCC), Wilsonville, AL and tested with an actual natural gas (NG) flue gas (8.6% CO2). 90â99% CO2 capture degrees were demonstrated during the parametric testing, and the skid was operated at steady state for 500 h cumulatively with 91.0% CO2 capture and >95% CO2 purity. A simulated natural gas combined cycle (NGCC) flue gas (4.3% CO2) slipstream was further provided by diluting the NG flue gas with air, and 90â99% CO2 capture degrees were also achieved with dry CO2 purities all above 95%.