The microwave desorption took 8 min and 28 mL gas was recovered from 1 g of Na-ETS-10 (1.16 mmol/g). Based on GC–TCD analysis, the desorbed gas contained 87% C2H4 and 13% C2H6, which is consistent with adsorbed phase composition data reported elsewhere (Shi et al., 2010). When conductive heating was applied to regenerate the Na-ETS-10 saturated with the C2H4/C2H6 mixture, it took 22 min to evolve 21 mL/g Na-ETS-10 of gas (0.87 mmol/g).