Enthalpies of absorption and solubility of carbon dioxide in aqueous polyamine solutions

Authors
Dallos, A Altsach, T Kotsis, L
Citation
A. Dallos et al., Enthalpies of absorption and solubility of carbon dioxide in aqueous polyamine solutions, J THERM ANA, 65(2), 2001, pp. 419-423
Citations number
5
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
65
Issue
2
Year of publication
2001
Pages
419 - 423
Database
ISI
SICI code
1388-6150(2001)65:2<419:EOAASO>2.0.ZU;2-C
Abstract
The enthalpies of absorption and solubility at T=298.15 K of carbon dioxide in aqueous solutions of bis-(3-dimethylaminopropyl)amine (CAS RN: [6711-48 -4]) are reported in this paper. It was observed that the saturation loadin g of the CO2 is alpha =2.9 mol CO2/mol TMBPA, which is close to the theoret ical value, alpha (0)=3 mol CO2/mol TMBPA. The molar heat of absorption of CO2 is independent of the polyamine concentration of the solutions and the amount of CO2 absorbed and was calculated to be Delta H-abs(m)=-44 (+/-2) k J mol(-1) CO2.