Experimental investigation on the solubility and initial rate of absorption of CO2 in aqueous mixtures of methyldiethanolamine with the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate

Ahmady, A. and Hashim, M.A. and Aroua, Mohamed Kheireddine (2010) Experimental investigation on the solubility and initial rate of absorption of CO2 in aqueous mixtures of methyldiethanolamine with the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate. Journal of Chemical and Engineering Data, 55 (12). pp. 5733-5738. ISSN 0021-9568

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Official URL: http://pubs.acs.org/doi/abs/10.1021/je1006949


In this paper we present the results of the initial absorption rate and solubility of CO2 in aqueous 4 M methyldiethanolamine (MDEA) mixed with various concentrations of 1-butyl-3-methylimidazolium tetrafluoroborate (bmimBF4) at (303, 313, 323, and 333) K. All experiments were carried out at low partial pressures of CO2, below 110 kPa. The results of this research suggested that the presence of a low concentration of bmimBF4 in aqueous 4 mol·L-1 MDEA has no significant effect on the mixture loading capacity, but increased the initial absorption rate. The amine CO2 loading capacity showed a significant decrease in the presence of high concentrations of ionic liquid in the mixture.

Item Type: Article
Additional Information: Cited By (since 1996):10 Export Date: 21 April 2013 Source: Scopus CODEN: JCEAA :doi 10.1021/je1006949 Language of Original Document: English Correspondence Address: Aroua, M. K.; Chemical Engineering Department, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: mkaroua@um.edu.my References: Jamal, A., Meisen, A., Jim Lim, C., Kinetics of carbon dioxide absorption and desorption in aqueous alkanolamine solutions using a novel hemispherical contactor - I. Experimental apparatus and mathematical modeling (2006) Chemical Engineering Science, 61 (19), pp. 6571-6589. , DOI 10.1016/j.ces.2006.04.046, PII S0009250906003319; Goldstein, A.M., Brown, E.C., Heinzelmann, F.J., Say, G.R., New FLEXORB gas treating technology for acid gas removal (1986) Energy Prog., 6, pp. 67-70; Samanta, A., Roy, S., Bandyopadhyay, S.S., Physical solubility and diffusivity of N2O and CO2 in aqueous solutions of piperazine and (N-methyldiethanolamine + piperazine) (2007) J. Chem. Eng. Data, 52, pp. 1381-1385C; Camper, D., Bara, J.E., Gin, D.L., Noble, R.D., Room-temperature ionic liquid-amine solutions: Tunable solvents for efficient and reversible capture of CO2 (2008) Ind. Eng. Chem. Res., 47, pp. 8496-8498; Cadena, C., Anthony, J.L., Shah, J.K., Marrow, T.I., Brennecke, J.F., Maggin, E.J., Why is CO2 so soluble in imidazolium-based ionic liquids? (2004) J. Am. Chem. Soc., 126 (16), pp. 5300-5308; Blanchard, L.A., Gu, Z., Brennecke, J.F., High pressure phase behavior of ionic liquid/CO2 systems (2001) J. Phys. Chem., 105, pp. 2437-2444; Bates, E.D., Mayton, R.D., Ntai, I., Davis, J.H., CO2 capture by a task-specific ionic liquid (2002) J. Am. Chem. Soc., 124, pp. 926-927; Chinn, D., Vu, D.Q., Driver, M.S., Boudreau, L.C., (2006) CO2 removal from gas using ionic liquid absorbents, , U.S. Patent 20060251558, Nov 9; Keskin, S., Kayrak-Talay, D., Akman, U., Hortacsu, O., A review of ionic liquids towards supercritical fluid applications (2007) J. Supercrit. Fluids, 43, pp. 150-180; Bara, J.E., Carlisle, T.K., Gabriel, C.J., Camper, D., Gin, D.L., Noble, R.D., Guide to CO2 separations in imidazolium-based room temperature ionic liquids (2009) Ind. Eng. Chem. Res., 48, pp. 2739-2751; Appl, M., Wagner, U., Henrici, H.J., Kuessner, K., Volkamer, K., Fuerst, E., (1982) Removal of CO2 and/or H2S and/or COS from gases containing these constituents, , U.S. Patent 4336233; Shiflett, M.B., Yokozeki, A., Solubilities and diffusivities of carbon dioxide in ionic liquids: bmimPF6 and bmimBF4 (2005) Ind. Eng. Chem. Res., 44, pp. 4453-4464; Benamor, A., Aroua, M.K., An experimental investigation on the rate of CO2 absorption in aqueous methyldiethanolamine solutions (2007) Korean J. Chem. Eng., 24 (1), pp. 16-23; Benamor, A., (1998) Solubility of carbon dioxide in aqueous solution of diethanolamine (DEA) and methyldiethanolamine (MDEA) and their mixtures, , Master of Science Thesis, University of Malaya, Kuala Lumpur, Malaysia; Austgen, D.M., Rochelle, G.T., Chen, C.C., Model of vapor-liquid equilibria for aqueous acid gas-alkanolamine systems 2. Representation of H2S and CO2 solubility in aqueous MDEA and CO2 solubility in aqueous mixtures of MDEA with MEA and DEA (1991) Ind. Eng. Chem. Res., 30, pp. 543-555; Bird, R.B., Stewart, W.E., Lightfoot, E.N., (2002) Transport Phenomena, , 2 nd ed.; John Wiley & Sons, Inc.: New York; Ermatchkov, V., Kamps, A.P.-S., Maurer, G., Solubility of carbon dioxide in aqueous solutions of N- methyldiethanolamine in the low gas loading region (2006) Industrial and Engineering Chemistry Research, 45 (17), pp. 6081-6091. , DOI 10.1021/ie0604270; Haji-Sulaiman, M.Z., Aroua, M.K., Benamor, A., Analysis of equilibrium data of CO2 in aquoues solution of diethanolamine (DEA), methyldiethanolamine (MDEA) and their mixtures using the modified Kent Eisenberg model (1998) Trans. Inst. Chem. Eng., 76, pp. 961-968; Jou, F.Y., Mather, A.E., Otto, F.D., Solubility of H2S and CO2 in aqueous MDEA solutions (1982) Ind. Eng. Chem. Process Des. Dev., 21, pp. 539-544; Chunxi, L., Furst, W., Representation of CO2 and H2S solubility in aqueous MDEA solutions using an electrolyte equation of state (2000) Chem. Eng. Sci., 55, pp. 2975-2988
Uncontrolled Keywords: 1-Butyl-3-methylimidazolium tetrafluoroborate; [bmim][BF; Absorption rates; Aqueous mixtures; Experimental investigations; High concentration; Initial rate of absorptions; Loading capacities; Low concentrations; Methyldiethanolamine; Absorption; Mixtures; Solubility; Ionic liquids.
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 06:55
Last Modified: 31 May 2019 04:15
URI: http://eprints.um.edu.my/id/eprint/7434

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