Process simulation and energy consumption analysis for CO2 capture with different solvents

Abstract

In this work, a comparative study and evaluation of CO2 capture process using monoethanolamine (MEA) and diethanoamine (DEA) is reported. Ten different process configurations from a power plant are simulated and compared in terms of the total equivalent work and the reboiler duty. Process flow sheet modifications present a good performance with respect to the reduction of energy consumption. It is carried out with a 0.38–4.61% of reduction for MEA and 0.27–4.5% for DEA. Furthermore, a detailed analysis is presented to study the effect of four significant parameters in capture process, including various temperature, pressure, and concentration. This analysis presents the influence of the interaction between solvent and process, which is essential in post-combustion process design to make optimization strategy.