- Title
- Molecular interactions between amine and carbonate species in aqueous solution: kinetics and thermodynamics
- Creator
- McCann, Nichola; Phan, Duong; Maeder, Marcel; Attalla, Moetaz; Puxty, Graeme; Fernandes, Debra; Conway, Will; Wang, Xiaoguang; Burns, Robert; van Altena, Ian; Lawrance, Geoffrey
- Relation
- Energy Procedia Vol. 1, Issue 1, p. 995-1002
- Publisher Link
- http://dx.doi.org/10.1016/j.egypro.2009.01.132
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2009
- Description
- Post combustion capture, PCC, of CO₂ from the flue gas stream of coal fired power stations is an attractive proposition for the reduction of CO₂ output into the atmosphere. PCC based on reversible absorption by aqueous amine solution is probably the most advanced technology. Thus the investigation of the chemistry of CO₂ absorption by such solutions is of crucial importance. A critical reaction is the formation of carbamates. There is a vast literature on this process but it is mainly based on empirical reaction mechanisms. In this contribution we present a molecularly correct mechanism for carbamate formation with primary amines. The results are derived from detailed, ¹H-NMR based, kinetic and equilibrium investigation of the interaction of monoethanolamine, MEA, with carbonate species. All rate and equilibrium constants are reported.
- Subject
- post combustion capture; carbamates; CO₂ absorption; kinetics; thermodynamics
- Identifier
- http://hdl.handle.net/1959.13/916868
- Identifier
- uon:8135
- Identifier
- ISSN:1876-6102
- Rights
- © 2009. This manuscript version is made available under the CC-BY-NC-ND 3.0 license https://creativecommons.org/licenses/by-nc-nd/3.0/
- Language
- eng
- Full Text
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