Amine Solutions for Biogas Upgrading: Ideal versus Non-Ideal Absorption Isotherms

E. I. Privalova, P. Mäki-Arvela, K. Eränen, A. K. Avetisov, J. P. Mikkola, D. Yu Murzin*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

14 Citeringar (Scopus)


Amine solutions were applied in carbon dioxide removal from a model mixture of biogas, carried out in a loop reactor system. In addition, the effect of CO2 absorption acceleration in the presence of piperazine was confirmed and quantified, relating the obtained CO2 loading with the piperazine concentration. Further, the interactions of CO2 and water in aqueous amine solutions were discussed. The obtained acid gas loadings were accurately described taking into account the effect of the dissolved CO2 on the equilibrium constant. A logarithmic absorption isotherm that follows from such considerations and a saturation-type isotherm were compared. In describing the experimental data, advantages and disadvantages of both approaches are discussed.

Sidor (från-till)740-748
Antal sidor9
TidskriftChemical Engineering and Technology
StatusPublicerad - apr. 2013
MoE-publikationstypA1 Tidskriftsartikel-refererad


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