Separation of CO2 from humidified ternary gas mixtures using thermally rearranged polymeric membranes

The effect of water vapor in a ternary gas mixture was studied for the first time, considering that most of the streams of interest contain large amount of water. The presence of water vapor induced a significant permeance decrease for all the three components and a negligible reduction in selectivity. Globally the membranes showed good performance in the whole range of operating conditions investigated.