Kinetic performance of ionic liquid – diethanolamine system for CO2 absorption

Merve Ozkutlu; Ozge Yuksel Orhan; Hulya Yavuz Ersan; Erdogan Alper

doi:10.1016/j.cdc.2016.05.001

Kinetic performance of ionic liquid – diethanolamine system for CO₂ absorption

Merve Ozkutlu
, Ozge Yuksel Orhan
, Hulya Yavuz Ersan
, Erdogan Alper

Hacettepe University

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Ionic liquid 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf₂N]) and diethanolamine (DEA) blend in hexanol was examined experimentally to provide a dual solvent with high absorption capacity and low regeneration energy for post combustion CO₂ absorption. For this purpose, kinetic parameters of the system with respect to termolecular reaction mechanism were determined by stopped-flow experiments. Activation energy of the reaction between the solvent and CO₂ was found to be 58.89 kJ/mol. In addition, experiments were carried out in a gas-liquid reactor and the loading capacity and the initial absorption rate of 10 wt % [bmim][Tf₂N]-15 wt % DEA system were found to be 0.43:1 mol ratio of CO₂: DEA and 1.66 × 10⁻⁵ kmol/m²s, respectively. Cyclic absorption-desorption behavior of the solvent and its desorption achievement were also investigated briefly.

Original language	English
Pages (from-to)	25-35
Number of pages	11
Journal	Chemical Data Collections
Volume	2
DOIs	https://doi.org/10.1016/j.cdc.2016.05.001
Publication status	Published - May 2016

Keywords

CO absorption
Carbon dioxide capture
DEA
Ionic liquid
Stopped-flow

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@article{e86002761b104b27836b116849260686,

title = "Kinetic performance of ionic liquid – diethanolamine system for CO2 absorption",

abstract = "Ionic liquid 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) and diethanolamine (DEA) blend in hexanol was examined experimentally to provide a dual solvent with high absorption capacity and low regeneration energy for post combustion CO2 absorption. For this purpose, kinetic parameters of the system with respect to termolecular reaction mechanism were determined by stopped-flow experiments. Activation energy of the reaction between the solvent and CO2 was found to be 58.89 kJ/mol. In addition, experiments were carried out in a gas-liquid reactor and the loading capacity and the initial absorption rate of 10 wt \% [bmim][Tf2N]-15 wt \% DEA system were found to be 0.43:1 mol ratio of CO2: DEA and 1.66 × 10−5 kmol/m2s, respectively. Cyclic absorption-desorption behavior of the solvent and its desorption achievement were also investigated briefly.",

keywords = "CO absorption, Carbon dioxide capture, DEA, Ionic liquid, Stopped-flow",

author = "Merve Ozkutlu and Orhan, \{Ozge Yuksel\} and Ersan, \{Hulya Yavuz\} and Erdogan Alper",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = may,

doi = "10.1016/j.cdc.2016.05.001",

language = "English",

volume = "2",

pages = "25--35",

journal = "Chemical Data Collections",

issn = "2405-8300",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Kinetic performance of ionic liquid – diethanolamine system for CO2 absorption

AU - Ozkutlu, Merve

AU - Orhan, Ozge Yuksel

AU - Ersan, Hulya Yavuz

AU - Alper, Erdogan

PY - 2016/5

Y1 - 2016/5

N2 - Ionic liquid 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) and diethanolamine (DEA) blend in hexanol was examined experimentally to provide a dual solvent with high absorption capacity and low regeneration energy for post combustion CO2 absorption. For this purpose, kinetic parameters of the system with respect to termolecular reaction mechanism were determined by stopped-flow experiments. Activation energy of the reaction between the solvent and CO2 was found to be 58.89 kJ/mol. In addition, experiments were carried out in a gas-liquid reactor and the loading capacity and the initial absorption rate of 10 wt % [bmim][Tf2N]-15 wt % DEA system were found to be 0.43:1 mol ratio of CO2: DEA and 1.66 × 10−5 kmol/m2s, respectively. Cyclic absorption-desorption behavior of the solvent and its desorption achievement were also investigated briefly.

AB - Ionic liquid 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) and diethanolamine (DEA) blend in hexanol was examined experimentally to provide a dual solvent with high absorption capacity and low regeneration energy for post combustion CO2 absorption. For this purpose, kinetic parameters of the system with respect to termolecular reaction mechanism were determined by stopped-flow experiments. Activation energy of the reaction between the solvent and CO2 was found to be 58.89 kJ/mol. In addition, experiments were carried out in a gas-liquid reactor and the loading capacity and the initial absorption rate of 10 wt % [bmim][Tf2N]-15 wt % DEA system were found to be 0.43:1 mol ratio of CO2: DEA and 1.66 × 10−5 kmol/m2s, respectively. Cyclic absorption-desorption behavior of the solvent and its desorption achievement were also investigated briefly.

KW - CO absorption

KW - Carbon dioxide capture

KW - DEA

KW - Ionic liquid

KW - Stopped-flow

UR - https://www.scopus.com/pages/publications/85006356062

U2 - 10.1016/j.cdc.2016.05.001

DO - 10.1016/j.cdc.2016.05.001

M3 - Article

AN - SCOPUS:85006356062

SN - 2405-8300

VL - 2

SP - 25

EP - 35

JO - Chemical Data Collections

JF - Chemical Data Collections

ER -

Kinetic performance of ionic liquid – diethanolamine system for CO₂ absorption

Abstract

Keywords

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