Recent Membrane Developments for CO2 Capture

Luis, R, Van Gerven, T., Van der Bruggen, B. 2012. Recent developments in membrane-based technologies for CO2 capture. Prog. Energy Combust. Sci. 38 4189 48. 

The manufacture of DPMs based on infiltrated molten carbonates in the porosity of perovskite membranes constitutes the most recent and innovative application of perovskites for CO2 capture. Since the first studies reported by Wade and coworkers [33] and Lin and coworkers [34], many efforts have been made to develop stable high-flux membranes for CO2 separation. Table 39.5 collects the most remarkable results, whereas Figvue 39.12 plots the permeance versus permeability plots for dual-phase perovskite-carbonate materials compared with low-temperature CO2 separating membranes (zeolites and MOFs/ZIFs). 

The removal of carbon dioxide from gaseous streams and solvents at elevated pressures is relevant for a number of applications. This includes processes like pre-combustion capture, with the main focus on the separation of CO2 and H2 mixtures, and natural gas treatment, where CO2 is removed from CH4. Gas-liquid membrane contactors have a great potential for the removal of carbon dioxide from different streams, because of ease of scale-up, increased gas-liquid interfacial area, and decoupling of the gas and liquid flows. Recent developments in both membrane materials and absorbent liquids have opened the way for efficient separation of CO2 based on gas-liquid membrane contactors. 

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