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Amine Solutions for Biogas Upgrading: Ideal versus Non-Ideal Absorption Isotherms
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2013 (English)In: Chemical Engineering & Technology, ISSN 0930-7516, E-ISSN 1521-4125, Vol. 36, no 5, 740-748 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2013. Vol. 36, no 5, 740-748 p.
Keyword [en]
Amine solutions, Biogas upgrading, CO2 capture, Piperazine
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-66490DOI: 10.1002/ceat.201200161ISI: 000318173600009OAI: oai:DiVA.org:umu-66490DiVA: diva2:606975
Available from: 2013-02-21 Created: 2013-02-21 Last updated: 2017-12-06Bibliographically approved

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Mikkola, Jyri-Pekka
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