A study of species formation of aqueous tertiary and hindered amines using quantitative C-13 NMR spectroscopy
- Title
- A study of species formation of aqueous tertiary and hindered amines using quantitative C-13 NMR spectroscopy
- Author
- 오성근
- Keywords
- Carbon dioxide; Hindered amine; Tertiary amine
- Issue Date
- 2012-01
- Publisher
- ELSEVIER SCIENCE INC, 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 권: 18, 호: 1, 페이지: 568-573
- Abstract
- Tertiary and sterically hindered amines have been chosen as potential candidate absorbents, recommended for their high carbon dioxide (CO2) loading capacity and easy regeneration. In this study, the CO2 absorption characteristics of these amines were studied using H-1 nuclear magnetic resonance (NMR) and quantitative C-13 NMR. The equilibrium experiments were conducted in the vapor-liquid equilibrium (VLE) apparatus, which was used to measure the CO2 absorption capacities and relative absorption rates of aqueous solutions of methyldiethanolamine (MDEA), 2-amino-2-methyl-1-propanol (AMP). The CO2 loaded absorbents were used for NMR measurement to determine the distribution of species formed in the absorbents. This process confirmed the reaction mechanisms of the individual absorbents in relation to CO2 absorption capacities. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S1226086X11002383?_rdoc=1&_fmt=high&_origin=gateway&_docanchor=&md5=b8429449ccfc9c30159a5f9aeaa92ffb
- ISSN
- 1226-086X
- DOI
- 10.1016/j.jiec.2011.11.053
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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