Table shows the rates obtained in all FT-CSFR runs from Figures and. In general, the transport diffusivity of CO2 in CALF-20 is about an order of magnitude greater than the transport diffusivity for H2O, with both exhibiting micropore diffusion control. When N2 is present, a mixed-gas phenomenon is observed, and in the case of CO2, this can be approximated by an LDF model. If the binary adsorption effects are ignored and the rates are directly compared for the CO2/He and CO2/He/N2 runs, the diffusion rates with He only are, on average, about 6x faster than with N2 present. At 1% CO2 a direct comparison can be made since the mechanisms are the same.