Wet impregnation of a commercial low cost silica using DETA for a fast post-combustion CO2 capture process

C.F. Martin, M.B. Sweatman, S. Brandani, X. Fan

Research output: Contribution to journalArticle

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6 Downloads (Pure)

Abstract

This work presents an economic and non-tedious method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the silica gel support, impregnated by low molecular-weight amine is stable and work very well at a temperatures up to 130 °C. The developed adsorbent has a fast adsorption kinetics and can be regenerated at a low temperature. This will significantly reduce the energy used to regenerate CO2, therefore the energy penalty of the capture/separation process. The effect of amine loading on the textural properties, thermal stability, and CO2 capture performance of the impregnated silica gel is also reported in this paper. 10% amine loading gives the best porosity, stability and the highest adsorption capacity.
Original languageEnglish
Pages (from-to)1705-1721
Number of pages17
JournalApplied Energy
Volume183
Early online date12 Oct 2016
DOIs
Publication statusPublished - 1 Dec 2016

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Silica gel
Impregnation
Amines
gel
silica
combustion
Silica
Adsorbents
cost
adsorption
Adsorption
Costs
energy
Thermodynamic stability
Porosity
Molecular weight
porosity
kinetics
Temperature
Economics

Keywords

  • CO2 capture
  • adsorption
  • amine
  • DETA
  • impregnation
  • thermal stability

Cite this

Wet impregnation of a commercial low cost silica using DETA for a fast post-combustion CO2 capture process. / Martin, C.F.; Sweatman, M.B. ; Brandani, S.; Fan, X.

In: Applied Energy, Vol. 183, 01.12.2016, p. 1705-1721.

Research output: Contribution to journalArticle

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abstract = "This work presents an economic and non-tedious method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the silica gel support, impregnated by low molecular-weight amine is stable and work very well at a temperatures up to 130 °C. The developed adsorbent has a fast adsorption kinetics and can be regenerated at a low temperature. This will significantly reduce the energy used to regenerate CO2, therefore the energy penalty of the capture/separation process. The effect of amine loading on the textural properties, thermal stability, and CO2 capture performance of the impregnated silica gel is also reported in this paper. 10{\%} amine loading gives the best porosity, stability and the highest adsorption capacity.",
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AU - Martin, C.F.

AU - Sweatman, M.B.

AU - Brandani, S.

AU - Fan, X.

N1 - We acknowledge EPSRC for the Grants EP/J019720/1 and EP/J019704/1.

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N2 - This work presents an economic and non-tedious method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the silica gel support, impregnated by low molecular-weight amine is stable and work very well at a temperatures up to 130 °C. The developed adsorbent has a fast adsorption kinetics and can be regenerated at a low temperature. This will significantly reduce the energy used to regenerate CO2, therefore the energy penalty of the capture/separation process. The effect of amine loading on the textural properties, thermal stability, and CO2 capture performance of the impregnated silica gel is also reported in this paper. 10% amine loading gives the best porosity, stability and the highest adsorption capacity.

AB - This work presents an economic and non-tedious method to manufacture low cost, but effective adsorbents for CO2 capture through impregnating DETA to a low cost, porous silica gel. The results have demonstrated that the silica gel support, impregnated by low molecular-weight amine is stable and work very well at a temperatures up to 130 °C. The developed adsorbent has a fast adsorption kinetics and can be regenerated at a low temperature. This will significantly reduce the energy used to regenerate CO2, therefore the energy penalty of the capture/separation process. The effect of amine loading on the textural properties, thermal stability, and CO2 capture performance of the impregnated silica gel is also reported in this paper. 10% amine loading gives the best porosity, stability and the highest adsorption capacity.

KW - CO2 capture

KW - adsorption

KW - amine

KW - DETA

KW - impregnation

KW - thermal stability

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