Technical viability and exergy analysis of membrane crystallization: Closing the loop of CO2 sequestration

► Membrane crystallization is a potential technology to recover Na2CO3 for further reuse. ► The concentration of the hypertonic solution is the key variable that determines the technical viability. ► The mass transfer is enhanced at higher flowrates of the feed solution. ► Na2CO3·10H2O crystals are formed during the crystallization. ► The exergy analysis defines a maximum of exergy and a range of positive exergy variation depending on the operation conditions.