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 language | English |
|---|---|
| Journal | Science China Chemistry |
| Volume | 55 |
| Issue number | 8 |
| Pages (from-to) | 1648-1656 |
| ISSN | 1674-7291 |
| Publication status | Published - 2012 |
Keywords
- CO2 capture
- Absorption
- Ionic liquids
- SILP absorber
Cite this
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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 journal › Journal article › Research › peer-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 -