Interplay of inlet temperature and humidity on energy penalty for CO2 post-combustion capture: Rigorous analysis and simulation of a single stage gas permeation process

This study reveals that an increase in the membrane operating temperature from 30 °C to 70 °C negatively affects CO2 permeate purity, losing more than 10% pts irrespective of capture ratio. Conversely, the influence on area requirement is strictly related to the type of membrane material. Additionally the specific energy requirement to drive the separation process increases, ranging from around 250 kWh/tonne (Polyactive™1500) to 290 kWh/tonne (PIM-1) for a separation degree of 90%.