Parametrical Assessment of Polyacrylamide Polymer Membrane Used for CO2 Post-Combustion Capture

Abstract

A sensitive analysis of CO2 capture from a coal-fired power plant of 600 MW with membrane technology based on post-combustion process is demonstrated. This study aimed to determine the influence of the membrane materials used (e.g., CO2 permeability was considered at 300, 1000, and 3000 GPU) on coal-fired power plant performance by investigating various parameters, such as the membrane number of stages, membrane surface area, and compressors’ pressure. The membrane surface area required varied from 200,000 to 800,000 m2 to procure no less than 99% purity. The total power plant efficiency was reduced by different values after integrating membrane CO2-capture technology based on the process design; nevertheless, the efficiency is profitable by around 13.5% when three membrane stages were harnessed instead of a two-stage configuration. Consequently, the levelized cost of energy (LCOE) decreased from 157 EUR/MWh (two stages of membrane) to 134 EUR/MWh (three stages of membrane).

Membrane CO2 Separation System Improvement for Coal-Fired Power Plant Integration

“…The usage of a membrane single stage at any parameter showed poor CO 2 captured concentration results [46]; therefore, a one-stage membrane is not recommended for our research. Currently, the studies of multi-unit membrane concentrate on two to four units.…”