Thermodynamics of CO2-MDEA using eNRTL with Differential Evolution Algorithm

Authors : Amine MEHABLİA, Saied KAMALPOUR

Pages : 157-168

View : 8 | Download : 4

Publication Date : 2012-06-04

Article Type : Research Paper

Abstract :Carbon dioxide insert ignore into journalissuearticles values(CO2); capture by absorption with aqueous alkanolamines is considered as an important technology to reduce CO2 emissions and to help alleviate global climate change. To understand more the thermodynamics of some of the CO2-Amines, the NRTL electrolyte model has been used to simulate the behaviour of carbon dioxide absorption by some amines. To determine NRTL interaction parameters of the model, VLE, heat capacity and excess enthalpy data have been used. In this study, carbon dioxide, water and Methyl DiEthanolAmine insert ignore into journalissuearticles values(MDEA); ternary system are used to calculate eNRTL insert ignore into journalissuearticles values(electrolyte Non-Ramdom Two Liquid); interaction parameters, and the system was modelled using VLE data available in the literature. Differential evolution algorithm insert ignore into journalissuearticles values(DE);, an evolutionary computational technique, has been used to estimate NRTL parameters model to predict the VLE of CO2 with MDEA. Differential Evolution algorithm insert ignore into journalissuearticles values(DE); have been used to compare it with annealing insert ignore into journalissuearticles values(SA); and deterministic technique like Levenberg–Marquardt insert ignore into journalissuearticles values(LM); using one set of experimental data for MDEA-H2O system. Its standard deviation is lower than those of SA and LM algorithms when used to regress the eNRTL binary interactions parameters for MDEA-H2O.
Keywords : Thermodynamics, Differential Evolution, CO2 Capture, eNRTL Model