To Study the Effect of CO2 Absorption in Aqueous MEA Solution using Kent-Eisenberg Thermodynamic Model

Rashid, Harith; Abd Hamid, Sharifah Bee; Nor, M. Iskandar M.
June 2014
Australian Journal of Basic & Applied Sciences;2014 Special, Vol. 8 Issue 8, p258
Academic Journal
This work presents a thermodynamic investigation of CO2 absorption in Mono-ethanol Amine (MEA) solution based on extensive experimental studies on this topic. Presented model can predict CO2 absorption in the amine solution with high accurately. The objectives of the current research are to study the effect of CO2 absorption for a wide range of gas/liquid flow rate and CO2 concentration (5 -20%) in the sour gas using Kent-Eisenberg Thermodynamic Model. CO2 loading in the lean gas was 0.006 mol/mol. CO2 absorption in MEA was studied at 25 oC and atmospheric pressure. In the open literature, many experimental data is available but very less work has focus on modeling and simulation of CO2 absorption in MEA solution. The predicted CO2 absorption trend and CO2 concentration in the sweet gas is found to be in good agreement with the experimental results, which validates the simulated results for CO2 mass transfer in MEA solution. Effect of Liquid and gas flow rate and concentration of CO2 in flue gas are also important parameters in CO2 absorption process and are discussed in detail.


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