Kinetics of absorption of CO2 into aqueous solutions of 2-amino-2-methyl-1-propanol

Saha, A.K.; Bandyopadhyay, Syamalendu S.; Biswas, Asok

doi:10.1016/0009-2509(95)00187-a

Cited by 216 publications

(160 citation statements)

References 28 publications

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“…This finding was supported by several authors [15][16][17]. The authors indicated that hindered carbamate is thermodynamically unstable and in the CO 2 loaded amine solution there is much less carbamate formed than bicarbonate and carbonate species.…”

Section: Introductionsupporting

confidence: 73%

CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

Kruszczak

Kierzkowska‐Pawlak

2017

Ecological Chemistry and Engineering S

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Abstract:The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector. In recent years, many researchers tested solutions which are composed of several compounds: a slow reacting tertiary amine-and a fast amine acting as an activator. In this paper, the CO2 absorption rate in an aqueous solution of N,N-diethylethanoloamine (DEEA) and activated solutions DEEA is investigated experimentally. The activators considered are sterically hindered amines: 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD) and N-methyl-1,3-propanediamine (MAPA) from the group of polyamines. The experiments were conducted over the temperature range of 303-333 K and the total amine concentration of 2 M. From the CO2 absorption experiments into mixed aqueous solutions of DEEA and MAPA, it was found that the addition of small amounts of MAPA into aqueous DEEA solutions has a significant effect on the enhancement of the CO2 absorption rate. The application of hindered amines: AMP or AMP as activators resulted in a marginally improvement of the absorption rate of CO2.

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Section: Introductionsupporting

confidence: 73%

CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

Kruszczak

Kierzkowska‐Pawlak

2017

Ecological Chemistry and Engineering S

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“…However , this tendency is different with that in laminar jet absorber [26] and wetted wall column [27], in which CO 2 absorption rate is almost independen t of gas-liquid contact time and a constant value of CO 2 absorption rate is gained at given temperat ure. Consequently, for a given temperature in laminar jet absorber or wetted wall column, only one value of reaction rate constant can be deduced from penetration theory under the assumpti on of pseudo-first order reaction at various gas-liquid contact times.…”

Section: Flow Pattern Analysismentioning

confidence: 78%

“…As demonstrated by Eqs. (22)- (27), excellent linear relationship is found to exist between F and t C at temperatures of 25 °C, 35 °C and 45 °C…”

Section: Methods Of Determinationmentioning

confidence: 99%

“…Techniqu es, such as laminar jet absorber, wetted wall column, and stirred cell, have been used in deciding the constant with specified interfacial area and absence of interfacial waviness [26]. In most cases, CO 2 absorption rate is independent of contact time [27] and reaction rate constant is deduced from penetration theory under the assumption of pseudo-first order reaction [28]. In this work, however, it is difficult to derive the constant for CO 2 absorption in microchannel from penetration theory with the assumption of pseudo-first order reaction as mentioned above.…”

Section: Reaction Rate Constantmentioning

confidence: 99%

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Process analysis on CO2 absorption by monoethanolamine solutions in microchannel reactors

Dang

Yao

et al. 2013

Chemical Engineering Journal

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“…It has been reported that 2-amino-2-methyl-1-propanol (AMP), which is the most popular sterically hindered amine, has CO 2 loading that is much higher than MEA, DEA, and TEA (triethanolamine) [4], [5]. The reaction mechanism of the absorption of CO 2 in aqueous AMP solutions, as well as the kinetic constants, has also been extensively studied [6], [7]. A number of publications reported the thermophysical properties of the solvent at different ranges of concentrations and temperatures [7]- [10].…”

Section: Introductionmentioning

confidence: 99%

Heat Capacities of Aqueous Ternary Mixtures of 2-Amino-2-Methyl-1, 3-Propanediol + Piperazine or Lithium Bromide

Olivia¹,

Leron²,

Li³

2014

IJCEA

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Abstract-In this work, we reported the molar heat capacities, C P , of aqueous solutions of the sterically hindered amines 2-amino-2-methyl-1, 3-propanediol (AMPD), and its aqueous ternaries containing piperazine (PZ) or lithium bromide (LiBr). Measurements were performed in the temperature range 303.15 K to 353.15 K and atmospheric pressure by heat flow differential scanning calorimetry. The excess molar heat capacities, C P E , of the binary solutions were determined, and the data were represented as function of temperature and composition using a RedlichKister-type equation. The C P of the ternary mixtures was correlated with temperature and amine concentration using the Sohnel and Novotny equation. Results showed that the calculated data agree very well with experimental C P values at average absolute deviation values of less than 0.2%. Index Terms-2-amino-2-methyl-1, 3-propanediol, molar heat capacity, redlichkister equation, sohnel and novotny equation.

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Kinetics of absorption of CO2 into aqueous solutions of 2-amino-2-methyl-1-propanol

Cited by 216 publications

References 28 publications

CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

Process analysis on CO2 absorption by monoethanolamine solutions in microchannel reactors

Heat Capacities of Aqueous Ternary Mixtures of 2-Amino-2-Methyl-1, 3-Propanediol + Piperazine or Lithium Bromide

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Kinetics of absorption of CO2 into aqueous solutions of 2-amino-2-methyl-1-propanol

Cited by 216 publications

References 28 publications

CO2 Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

CO2 Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

Process analysis on CO2 absorption by monoethanolamine solutions in microchannel reactors

Heat Capacities of Aqueous Ternary Mixtures of 2-Amino-2-Methyl-1, 3-Propanediol + Piperazine or Lithium Bromide

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Product

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CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

CO₂ Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine