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Tikrit Journal of Engineering Sciences (2008) 15(1) 63-78
Mathematical Modeling of The Instantenous Reaction of H2S MEA in a Falling Film Reactor
|Saba A. Ghani||Ahmed Daham Wohaeb||Farah T. Jasem|
|Chem. Eng. Dept., University of Tikrit,Iraq.||Chem. Eng. Dept., University of Technology,Iraq.|
A mathematical model was formulated using the absorption of carbon dioxide by monoethanolamine amine as an absorbent in a falling film reactor. A program wrote in Fortran language was used to obtain these profiles via using of multi grid method through programming of kinetic and thermodynamic equation and physical properties of the studied system. Through the formulated model film thickness, surface temperature, velocity, concentration and temperature profiles were obtained. The mathematical analysis validated by a test run in a Baiji refinery through intrusion of liquid flow rate, liquid concentration and gas fraction. In this study we have four factors as independent variables ,they are mole fraction of hydrogen sulfide in gaseous mixture (Y) (0.05, 0.75 and 0.1), molar concentration of absorbent (monoethanolamine) (CMEA) (0.05, 0.075 and 1 M), volumetric flow rate of liquor MEA (QMEA) (5, 10, 15, and 20), and its temperature (T) (30, 35, 40, 45, 50 and 55 C).
Keywords: Falling film reactor, kinetic, H2S-MEA , modeling.