A non-isothermal numerical model was developed for dual reflux pressure swing adsorption cycles.
Bed pressure, flow and temperature profiles from N2 + CH4 experiments were well matched.
Predicted CH4 mole fractions had r.m.s. deviations of 0.003 and 0.024 for the light and heavy products.
Simulations provide insight into the optimisation of the feed step time and mass transfer effects.