Kinetics of the reaction between carbon dioxide and methyldiethanolamine

Haimour, Noman; Bidarian, Ali; Sandall, Orville C.

doi:10.1016/0009-2509(87)85011-x

Cited by 91 publications

(68 citation statements)

References 10 publications

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“…Among all these authors, fair agreement exists on the activation temperature and observed reaction rates. Only Haimour et al (1987) reported an activation temperature which is almost twice the value of the activation temperature reported by other authors. Versteeg and Van Swaaij (1988b) also studied the reaction of CO, with DMMEA at 293 K and with triethylamine (TREA) at 292 K. In contradiction with Donaldson and Nguyen (1980), they did observe base catalysis of the CO, hydratation for TREA.…”

Section: Reaction Mechanismmentioning

confidence: 53%

Kinetics of Carbon Dioxide with tertiary Amines in aqueous solution

1990

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The reaction of CO, with TEA, DMMEA, and DEMEA has been studied at 293, 303, 318 and 333 K. All the kinetic experiments were carried out in a stirred cell reactor operated with a flat, smooth and horizontal gas-liquid interface. A numerical method, which describes mass transfer accompanied by reversible chemical reactions, has been applied to infer rate constants from the experimental data. It is argued that the contribution of the CO, reaction with OH-to the observed reaction rate may have been overestimated in most literature on tertiary amine kinetics as serious depletion of OH-toward the gas-liquid interface usually occurs.For all the amines studied, the reaction order in amine was found to be about one for each temperature investigated. This is in good agreement with the base catalysis mechanism proposed by Donaldson and Nguyen (1980). All kinetic data could be summarized reasonably well in one BrBnsted relationship. R. J. Littel

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Section: Reaction Mechanismmentioning

confidence: 53%

Kinetics of Carbon Dioxide with tertiary Amines in aqueous solution

1990

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“…The kinetics of the reaction of CO 2 with aqueous MDEA was widely investigated [12,15,21,[24][25][26][27][28][29] using several experimental techniques. Although the kinetic mechanisms for tertiary amines are much simpler than for primary or secondary amines, for which carbamate formation has to be considered, discrepancies have appeared in the literature concerning the reported rate constants which are summarized in Table 2.…”

Section: Example Of Analyzing the Absorption Experiments -Reaction Ofmentioning

confidence: 99%

Determination of Kinetics in Gas-Liquid Reaction Systems. An Overview

Kierzkowska‐Pawlak¹

2012

Ecological Chemistry and Engineering S

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Abstract:The aim of this paper is to present a brief review of the determination methods of reaction kinetics in gas-liquid systems with a special emphasis on CO2 absorption in aqueous alkanolamine solutions. Both homogenous and heterogeneous experimental techniques are described with the corresponding theoretical background needed for the interpretation of the results. The case of CO2 reaction in aqueous solutions of methyldiethanolamine is discussed as an illustrative example. It was demonstrated that various measurement techniques and methods of analyzing the experimental data can result in different expressions for the kinetic rate constants.

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“…Sharma, 1965: BlauwholT et al, 1984Sada et al, 1985Sada et al, , 1986Haimour et al, 1987;Versteeg and van Swaaij, 1988a;Littel et al, 1990). Deduction of kinetic rate constants from gas absorption experiments can be very complex as a lot of interacting phenomena are involved.…”

Section: Many Authorsmentioning

confidence: 99%