Kinetic of CO2 absorption and carbamate formation in aqueous solutions of diethanolamine

Benamor, A. and Ali, B.S. and Aroua, M.K. (2008) Kinetic of CO2 absorption and carbamate formation in aqueous solutions of diethanolamine. Korean Journal of Chemical Engineering, 25 (3). pp. 451-460. ISSN 0256-1115

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Official URL: http://link.springer.com/article/10.1007/s11814-00...

Abstract

The absorption rates of CO2 into aqueous solutions of Diethanolamine (DEA) with varying concentrations from 0.2 to 4M and temperature range from 293 to 323 K were measured by using a laboratory stirred reactor. The CO2 partial pressure was varied in a range that the reaction would occur in pseudo first order regime. Experimental data were analyzed and the kinetic parameters associated with the reaction were determined. The activation energy for the deprotonation of the intermediate zwitterion was estimated at about 11.4 kcal/mol. The contribution of carbamate formation to the overall absorbed CO2 was experimentally evaluated and found to be of the order of 100.

Item Type: Article
Additional Information: Cited By (since 1996):4 Export Date: 21 April 2013 Source: Scopus :doi 10.1007/s11814-008-0077-3 Language of Original Document: English Correspondence Address: Aroua, M. K.; Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; email: mkaroua@um.edu.my References: Blanc, C., Demarais, G., (1984) Int. Chem. Eng., 24, p. 43. , 1; Rinker, E.B., Ashour, S.S., Sandall, O.C., (1996) Ind. Eng. Chem. Res., 35, p. 1107; Blauwhoff, P.M.M., Van Swaaij, W.P.M., (1983) Chem. Eng. Sci., 38, p. 1411; Caplow, M., (1968) J. Am. Chem. Soc., 90, p. 6795; Danckwerts, P.V., (1979) Chem. Eng. Sci., 34, p. 443; Versteeg, G.F., Van Dijck, L.A., Van Swaaij, W.P.M., (1996) Chem. Eng., 144, p. 113; Caplow, M., (1968) J. Am. Chem. Soc., 90, p. 6795; Pinsent, B.R.W., Pearson, L., Roughton, F.G.W., (1956) Trans. Faraday Soc., 52, p. 1512; Blauwhoff, P.M.M., Van Swaaij, W.P.M., (1983) Chem. Eng. Sci., 38, p. 1411; Laddha, S.S., Diaz, J.M., Danckwerts, P.V., (1981) Chem. Eng. Sci., 36, p. 229; Versteeg, G.F., Van Swaaij, W.P.M., (1988) J. Chem. Eng. Data., 33, p. 29; Snijder, E.D., Riele, M.J.M., Versteeg, G.F., Van Swaaij, W.P.M., (1993) J. Chem. Eng. Data., 38, p. 475; Versteeg, G.F., Van Dijck, L.A.J., Van Swaaij, W.P.M., (1996) Chem. Eng. Sci., 144, p. 113; Taylor, F.R.S., (1953) Proc. R. Soc. London., 219, p. 186; Glasscock, D.A., Critchfield, J.E., Rochelle, G.T., (1991) Chem. Eng. Sci., 46, p. 2829; (2003) Handbook of Chemistry and Physics 83rd Edition; Danckwerts, P.V., (1970) Gas Liquid Reaction, , Mcgraw-Hill New York; Whitman, W.G., (1923) Chem. Met. Engng., 29, p. 146; Hatta, S., (1928) Technol. Repts., 9. , Tohoku Imp University; Alvarez-Fuster, C., Midoux, N., Laurent, A., Charpentier, J.-C., (1980) Chem. Eng. Sci., 35, p. 1717; Benamor, A., Aroua, M.K., (2007) Korean J. Chem. Eng., 24, p. 16; Haji-Sulaiman, M.Z., Aroua, M.K., Benamor, A., (1998) Trans IChemE., 76, p. 961. , PartA; Benamor, A., Aroua, M.K., (2005) Fluid Phase Equilibria., 231, p. 150; Haji-Sulaiman, M.Z., Aroua, M.K., Pervez, M.I., (1996) Gas. Sep. Pur., 10, p. 13; Little, R.J., Versteeg, G.F., Van Swaaij, W.P.M., (1992) Chem. Eng. Sci., 47, p. 2037; Sada, E., Kumazawa, H., Butt, M.A., (1977) J. Chem. Eng. Data, 22, p. 277; Sada, E., Kumazawa, H., Butt, M.A., (1976) Chem. Eng. Sci., 31, p. 839; Haimour, N., (1990) J. Chem. Eng. Data, 35, p. 177; Rinker, E.B., Sandall, O.C., (1996) Chem. Eng. Com., 144, p. 85; Tsai, T.-C., Kho, J.-J., Wang, M.-H., Lin, C.-Y., Li, M.-H., (2000) J. Chem. Eng. Data, 45, p. 341; Oyvaar, M.H., Morssinkhof, R.W.J., Westerterp, K.R., (1989) J. Chem. Eng. Data, 34, p. 77; Versteeg, G.F., Oyevaar, M.H., (1989) Chem. Eng. Sci., 44, p. 1264; Versteeg, G.F., Blauwhoff, P.M., Van Swaaij, W.P.M., (1987) Chem. Eng. Sci., 42, p. 1103; Browning, G.J., Weiland, R.H., (1994) J. Chem. Eng. Data, 39, p. 817; Li, M.H., Lee, W.C., (1996) J. Chem. Eng. Data, 41, p. 551. , 3; Sada, E., Kumazawa, H., Han, Z.Q., Butt, M.A., (1985) AIChE J., 31, p. 1297
Uncontrolled Keywords: diethanolamine; carbon dioxide; carbamate; absorption kinetics; carbon-dioxide; nitrous-oxide; alkanolamine solutions; chemical-kinetics; solubility; methyldiethanolamine; diffusivity; mixtures; n2o; monoethanolamine.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 08:08
Last Modified: 12 Nov 2013 00:24
URI: http://eprints.um.edu.my/id/eprint/7451

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