The circulation rate of lean MDEA is best determined by equilibrium
loading calculations based on acid gas content of the feed,
concentration of MDEA used and acid gas loading. A range of
0.4e0.55 mol acid gas/mole alkanolamine was specified for the acid
gas loading in rich MDEA (Ridnay and Parrish, 2006). In this study,
simulation will be performed to estimate the required MDEA circulation
rate for the variation of acid gas content and MDEA concentration.
In this simulation an intermediate value of 0.45 is
considered and the lean MDEA flow rate will be calculated.