CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead of aqueous amine solutions overcomes the major thermodynamic issues. By applying SILP technology further advances, in terms of ease of handling and sorption dynamics, are obtained. Initial experimental studies showed that ionic liquids such as tetrahexylammonium prolinate, [N6666][Pro], provide a good candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt% [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9% CO2 in He).

Original languageEnglish
JournalScience China Chemistry
Volume55
Issue number8
Pages (from-to)1648-1656
ISSN1674-7291
Publication statusPublished - 2012

Keywords

  • CO2 capture
  • Absorption
  • Ionic liquids
  • SILP absorber

Cite this

@article{49934bd731c6473fa415abd58ef96218,
title = "CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers",
abstract = "Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead of aqueous amine solutions overcomes the major thermodynamic issues. By applying SILP technology further advances, in terms of ease of handling and sorption dynamics, are obtained. Initial experimental studies showed that ionic liquids such as tetrahexylammonium prolinate, [N6666][Pro], provide a good candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt{\%} [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9{\%} CO2 in He).",
keywords = "CO2 capture, Absorption, Ionic liquids, SILP absorber",
author = "Helene Kolding and Rasmus Fehrmann and Anders Riisager",
year = "2012",
language = "English",
volume = "55",
pages = "1648--1656",
journal = "Science China Chemistry",
issn = "1674-7291",
publisher = "Zhongguo Kexue Zazhishe",
number = "8",

}

CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers. / Kolding, Helene; Fehrmann, Rasmus; Riisager, Anders.

In: Science China Chemistry, Vol. 55, No. 8, 2012, p. 1648-1656.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers

AU - Kolding, Helene

AU - Fehrmann, Rasmus

AU - Riisager, Anders

PY - 2012

Y1 - 2012

N2 - Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead of aqueous amine solutions overcomes the major thermodynamic issues. By applying SILP technology further advances, in terms of ease of handling and sorption dynamics, are obtained. Initial experimental studies showed that ionic liquids such as tetrahexylammonium prolinate, [N6666][Pro], provide a good candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt% [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9% CO2 in He).

AB - Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead of aqueous amine solutions overcomes the major thermodynamic issues. By applying SILP technology further advances, in terms of ease of handling and sorption dynamics, are obtained. Initial experimental studies showed that ionic liquids such as tetrahexylammonium prolinate, [N6666][Pro], provide a good candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt% [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9% CO2 in He).

KW - CO2 capture

KW - Absorption

KW - Ionic liquids

KW - SILP absorber

M3 - Journal article

VL - 55

SP - 1648

EP - 1656

JO - Science China Chemistry

JF - Science China Chemistry

SN - 1674-7291

IS - 8

ER -