Amine Solutions for Biogas Upgrading

Publicerad 2013 av Elena I Privalova

Amine Solutions Biogas Upgrading Naturvetenskap Natural Sciences Co2 Capture Piperazine
Typ av publikation: Artiklar
Typ av innehåll: Refereegranskad publ.

Ingår i:
Chemical Engineering & Technology

Published by: Umeå universitet, ISSN:0930-7516,


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 absorptio 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.