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MODELING AND SIMULATION OF CARBON DIOXIDE ABSORPTION IN MONOETHANOLAMINE … Figure 6. Variation of liquid’s temperature (FL = FL + 20 %) Figure 7. Variation of CO2 molar fraction in gas phase (FG=FG + 20 %) Figure 8. Variation of MEA height concentration (FL = FL + 20 %) 45
46 ANA-MARIA CORMOS, JOZSEF GASPAR, ANAMARIA PADUREAN Figure 7 shows the effect of the gas flow increasing on CO2 concentration in gas phase. The presence of process perturbations determine a significant increasing of CO2 output concentration. Figure 8 shows the MEA concentration evolution in time and column’s height if the liquid flow increasing. All these stationary and dynamic parameters profiles along the packed absorption column are valuable information for process optimization and to develop a control strategy for the process. The developed mathematical model will be tuned against experimental data for adjusting the parameters and then it can be used for pre-screening and designing practical CO2 absorption process in various conditions (laboratory, pilot and industrial size, different solvents and column internals, various operational conditions etc.). CONCLUSION A mathematical model was developed for analyzing carbon dioxide absorption rate and understanding of micro level interaction of various processes going inside de reactor (packed absorption column). Simulation of carbon dioxide gas – liquid absorption process in mono-ethanolamine (MEA) was done using Matlab software. The evolutions of the process parameters (liquid and gaseous flows, composition of the streams, temperatures) were studied during the carbon dioxide absorption process. For verification of the developed model, the simulation results were compared with ChemCAD model simulation. The mathematical model and the simulation results proved to be a reliable tool for process analyzing and are useful for making preliminary calculations of experimental parameters for the column absorption. Also, the developed model can be used to determine optimal operation conditions and to design the control system. NOTATION au specific area (m 2 /m 3 ) A gaseous reactant (CO2) b stoichiometric coefficient of B B liquid reactant (MEA) CA concentration of dissolved gas A (kmol/m 3 ) CAG concentration of A in gas (kmol/m 3 ) CB concentration of reactant B (kmol/m 3 ) CB0 initial concentration of reactant B (kmol/m 3 ) cp,CO2 specific heat capacity of CO2 (J/mol*K) cp,G specific heat capacity of gas (J/mol*K) cpsol specific heat capacity of solution (J/mol*K)
Page 1 and 2: R /(mol m -2 s -1 ) 0.06 0.05 0.04
Page 3 and 4: ANA-MARIA CORMOS, JOZSEF GASPAR, AN
Page 5 and 6: Studia Universitatis Babes-Bolyai C
Page 7 and 8: 6 PROFESSOR IOAN BÂLDEA AT HIS 70
Page 9 and 10: MARCELA ACHIM, DANA MUNTEAN, LAURIA
Page 15 and 16: STUDIA UNIVERSITATIS BABEŞ-BOLYAI,
Page 17 and 18: STUDIES ON WO3 THIN FILMS PREPARED
Page 25 and 26: PREPARATION AND CHARACTERIZATION OF
Page 31 and 32: 32 C. CĂŢĂNAŞ, M. MOGOŞ, D. HO
Page 33 and 34: 34 C. CĂŢĂNAŞ, M. MOGOŞ, D. HO
Page 35 and 36: C. CĂŢĂNAŞ, M. MOGOŞ, D. HORVA
Page 37 and 38: 38 ANA-MARIA CORMOS, JOZSEF GASPAR,
Page 39 and 40: ANA-MARIA CORMOS, JOZSEF GASPAR, AN
Page 43: 44 ANA-MARIA CORMOS, JOZSEF GASPAR,
Page 49 and 50: 50 EUGEN DARVASI, LADISLAU KÉKEDY-
Page 61 and 62: MATHEMATICAL MODELING FOR THE CRYST
Page 71 and 72: STUDY OF THE CHROMATOGRAPHIC RETENT
Page 81 and 82: LOWER RIM SILYL SUBSTITUTED CALIX[8
Page 89 and 90: THE INTERACTION OF SILVER NANOPARTI
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STUDIA UNIVERSITATIS BABEŞ-BOLYAI,
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OPTIMISATION OF COPPER REMOVAL FROM
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MELINDA-HAYDEE KOVACS, DUMITRU RIST
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IRON DOPED CARBON AEROGEL AS CATALY
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128 ANDRADA MĂICĂNEANU, HOREA BED
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ANDRADA MĂICĂNEANU, HOREA BEDELEA
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CRISTINA MIHALI, GABRIELA OPREA, EL
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144 CRISTINA MIHALI, GABRIELA OPREA
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146 Interfering ion, J - I - DBS -
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CONCLUSIONS 148 CRISTINA MIHALI, GA
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150 CRISTINA MIHALI, GABRIELA OPREA
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152 D. MIHU, L. VLASE, S. IMRE, C.
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154 Intens. x105 1.5 1.0 0.5 0.0 x1
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D. MIHU, L. VLASE, S. IMRE, C. M. M
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162 A. PETER, M. BAIA, F. TODERAS,
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164 (a) V relative [%] (c) V relati
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A. PETER, M. BAIA, F. TODERAS, M. L
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BIOSORPTION OF PHENOL FROM AQUEOUS
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186 ANDREI ROTARU, MIHAI GOŞA, EUG
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ANDREI ROTARU, MIHAI GOŞA, EUGEN S
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194 OCTAVIAN STAICU, VALENTIN MUNTE
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ln(τ i / s) OCTAVIAN STAICU, VALEN
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204 MARIA ŞTEFAN, IOAN BÂLDEA, RO
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EXPERIMENTAL SECTION 210 MARIA ŞTE
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EQUILIBRIUM STUDY ON ADSORPTION PRO
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STRATEGIES OF HEAVY METAL UPTAKE BY
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CORROSION INHIBITION OF BRONZE BY A
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E / mV vs. SCE POTASSIUM-SELECTIVE
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POTASSIUM-SELECTIVE ELECTRODE BASED
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POTASSIUM-SELECTIVE ELECTRODE BASED
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256 CODRUTA VARODI, DELIA GLIGOR, L
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CODRUTA VARODI, DELIA GLIGOR, LEVEN
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PHARMACOKINETIC INTERACTION BETWEEN
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