Kinetics of absorption of carbon dioxide into aqueous potassium salt of proline

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Kinetics of absorption of carbon dioxide into aqueous potassium salt of proline. / Paul, Subham; Thomsen, Kaj.

In: International Journal of Greenhouse Gas Control, Vol. 8, 2012, p. 169-179.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Paul, Subham; Thomsen, Kaj / Kinetics of absorption of carbon dioxide into aqueous potassium salt of proline.

In: International Journal of Greenhouse Gas Control, Vol. 8, 2012, p. 169-179.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{3d9e8ad2f5894e7ea886de22b2454f44,
title = "Kinetics of absorption of carbon dioxide into aqueous potassium salt of proline",
keywords = "Absorption, Reaction, Kinetics, Carbon dioxide, Proline, Amino acid",
publisher = "Elsevier Ltd.",
author = "Subham Paul and Kaj Thomsen",
year = "2012",
doi = "10.1016/j.ijggc.2012.02.013",
volume = "8",
pages = "169--179",
journal = "International Journal of Greenhouse Gas Control",
issn = "1750-5836",

}

RIS

TY - JOUR

T1 - Kinetics of absorption of carbon dioxide into aqueous potassium salt of proline

A1 - Paul,Subham

A1 - Thomsen,Kaj

AU - Paul,Subham

AU - Thomsen,Kaj

PB - Elsevier Ltd.

PY - 2012

Y1 - 2012

N2 - <p>The absorption of carbon dioxide (CO<sub>2</sub>) into aqueous solution of potassium prolinate (KPr) are studied at 303, 313, and 323K within the salt concentration range of 0.5–3.0kmolm<sup>−3</sup> using a wetted wall column absorber. The experimental results are used to interpret the kinetics of the reaction of CO<sub>2</sub> with KPr for the above mentioned concentration and temperature range. Following the reaction mechanism of CO<sub>2</sub> with primary and secondary alkanolamies, the reaction of CO<sub>2</sub> with KPr is also described using zwitterionic mechanism. Based on the pseudo-first-order condition for the CO<sub>2</sub> absorption, the reaction rate parameters are determined from the kinetic measurements and presented at each experimental condition. The reaction order is found to be in between 1.36 and 1.40 with respect to KPr for the above mentioned concentration range. The second-order rate constants, k2, are obtained as 118,914, 203,851, and 317,625m3kmol<sup>−1</sup>s<sup>−1</sup> at 303, 313, and 323K, respectively with activation energy of 36.5kJmol<sup>−1</sup>. The second-order rate constants are much higher than for alkanolamines and some other salt of amino acids.</p>

AB - <p>The absorption of carbon dioxide (CO<sub>2</sub>) into aqueous solution of potassium prolinate (KPr) are studied at 303, 313, and 323K within the salt concentration range of 0.5–3.0kmolm<sup>−3</sup> using a wetted wall column absorber. The experimental results are used to interpret the kinetics of the reaction of CO<sub>2</sub> with KPr for the above mentioned concentration and temperature range. Following the reaction mechanism of CO<sub>2</sub> with primary and secondary alkanolamies, the reaction of CO<sub>2</sub> with KPr is also described using zwitterionic mechanism. Based on the pseudo-first-order condition for the CO<sub>2</sub> absorption, the reaction rate parameters are determined from the kinetic measurements and presented at each experimental condition. The reaction order is found to be in between 1.36 and 1.40 with respect to KPr for the above mentioned concentration range. The second-order rate constants, k2, are obtained as 118,914, 203,851, and 317,625m3kmol<sup>−1</sup>s<sup>−1</sup> at 303, 313, and 323K, respectively with activation energy of 36.5kJmol<sup>−1</sup>. The second-order rate constants are much higher than for alkanolamines and some other salt of amino acids.</p>

KW - Absorption

KW - Reaction

KW - Kinetics

KW - Carbon dioxide

KW - Proline

KW - Amino acid

U2 - 10.1016/j.ijggc.2012.02.013

DO - 10.1016/j.ijggc.2012.02.013

JO - International Journal of Greenhouse Gas Control

JF - International Journal of Greenhouse Gas Control

SN - 1750-5836

VL - 8

SP - 169

EP - 179

ER -