The reaction between CO2 and diethanolamine at 298 K

Versteeg, Geert; Oyevaar, M.H.

doi:10.1016/0009-2509(89)87026-5

Cited by 92 publications

(64 citation statements)

References 19 publications

(12 reference statements)

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“…Moreover, the kinetics of the reaction of CO 2 with DEA at 298 K obtained by our technique has already been compared to the values reported in the literature by the author in a previous work [33]. For the latter system, the k o values at 298 K obtained using this setup were found to be in accordance with those obtained by previous workers using stopped flow [14,34] as well as other techniques such as rapid mixing [26], continuously stirred cell reactor [35], and wetted wall method [36].…”

Section: Aqueous-pure Amine Systemssupporting

confidence: 90%

Kinetics of the reaction of carbon dioxide with blends of amines in aqueous media using the stopped‐flow technique

Ali

2005

Int J of Chemical Kinetics

107

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The effect of mixing 2-amino-2-methyl-1-propanol (AMP) with a primary amine, monoethanolamine (MEA), and a secondary amine, diethanolamine (DEA), on the kinetics of the reaction with carbon dioxide in aqueous media has been studied at 298, 303, 308, and 313 K over a range of blend composition and concentration. The direct stopped-flow conductimetric method has been used to measure the kinetics of these reactions. The proposed model representing the reaction of CO 2 with either of the blends studied is found to be satisfactory in determining the kinetics of the involved reactions. This model is based on the zwitterion mechanism for all the amines involved (AMP, MEA, and DEA). Blending AMP with either of the amines results in observed pseudo-first-order reaction rate constant values (k o ) that are greater than the sum of the k o values of the respective pure amines. This is due to the role played by one amine in the deprotonation of the zwitterion of the other amine. Steric factor and basicity of the formed zwitterion and the deprotonating species have a great bearing in determining the rate of the reactions studied. C 2005 Wiley Periodicals, Inc. Int J Chem Kinet 37: [391][392][393][394][395][396][397][398][399][400][401][402][403][404][405] 2005

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Section: Aqueous-pure Amine Systemssupporting

confidence: 90%

Kinetics of the reaction of carbon dioxide with blends of amines in aqueous media using the stopped‐flow technique

Ali

2005

Int J of Chemical Kinetics

107

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“…Values for the deprotonation constants are only available for DIPA (Versteeg and van Swaaij, 1988a) and DEA (Versteeg and Oyevaar, 1989). These values are summarized in Table 5 together with those for AMP.…”

Section: Resultsmentioning

confidence: 99%

Kinetics of the reaction of CO2 with the sterically hindered amine 2-Amino-2-methylpropanol at 298 K

Bosch

Versteeg

Swaaij

1990

Chemical Engineering Science

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Abstract-Absorptionrates of CO, into aqueous solutions of the sterically hindered amine AMP (2-_amino-Zmethylpropanol), under reaction-controlled conditions were measured. The experiments were carried out in a stirkd vessel with a smooth horizontal interface. The results were interpreted in terms of the zwitterion mechanism for the reaction of CO, with primary or secondary amines as originally proposed by Caplow (1968, J. Am. &em. Sot. 90,[6795][6796][6797][6798][6799][6800][6801][6802][6803] and Danckwerts (1979, Ch em. Engng Sci. 34,443446). The reaction rate constants and the equilibrium constant describing the stability ofthe carbamate of AMP were determined by fitting numerically calculated absorption rates to the experimentally observed ones. These constants were compared with data reported for AMP and with those for not sterically hindered amines.The relative values of the reaction rate constants could by explained only partially.

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“…The zwitterion mechanism has recently become one of the most widely accepted mechanisms for primary amine reactions with CO 2 (Blauwhoff et al, 1984;Versteeg and van Swaaij, 1988;Versteeg et al, 1990;Versteeg and Oyevaar, 1989;Glasscock et al, 1991;Littel et al, 1992;Mandal et al, 2003a). The rate coefficients k 21 and k 23 are viewed as the global rate coefficients for the formation of bicarbonate and carbamate, respectively.…”

Section: Reaction Mechanismmentioning

confidence: 99%

Absorption of carbon dioxide into aqueous blends of 2-amino-2-methyl-1-propanol and monoethanolamine

Mandal

Bandyopadhyay

2006

Chemical Engineering Science

163

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The reaction between CO2 and diethanolamine at 298 K

Cited by 92 publications

References 19 publications

Kinetics of the reaction of carbon dioxide with blends of amines in aqueous media using the stopped‐flow technique

Kinetics of the reaction of carbon dioxide with blends of amines in aqueous media using the stopped‐flow technique

Kinetics of the reaction of CO2 with the sterically hindered amine 2-Amino-2-methylpropanol at 298 K

Absorption of carbon dioxide into aqueous blends of 2-amino-2-methyl-1-propanol and monoethanolamine

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