Kinetics of the Reversible Reaction of CO2(aq) with Ammonia in Aqueous Solution

被引：74
|
作者：
Wang, Xiaoguang [1 ,3 ]
Conway, William [1 ]
Fernandes, Debra [1 ]
Lawrance, Geoffrey [1 ]
Burns, Robert [1 ]
Puxty, Graeme [2 ]
Maeder, Marcel [1 ]
机构：
[1] Univ Newcastle, Dept Chem, Newcastle, NSW 2308, Australia
[2] CSIRO, Div Energy Technol, Newcastle, NSW 2300, Australia
[3] Natl Inst Clean & Low Carbon Energy, Beijing 100011, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2011年 / 115卷 / 24期
关键词：
CARBON-DIOXIDE; CO2; ABSORPTION; CARBAMATE FORMATION; BICARBONATE; CAPTURE; MONOETHANOLAMINE; ACID; NH3; SEQUESTRATION; SOLUBILITY;
D O I：
10.1021/jp108491a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The kinetics of the interactions of aqueous ammonia with aqueous carbon dioxide/carbonate species has been investigated using stopped-flow techniques by monitoring the pH changes via indicators. The reactions include the reversible formation of ammonium carbamate/carbamic acid. A complete reaction mechanism has been established, and the temperature dependence of all rate and equilibrium constants including the protonation constant of the amine between 15 and 45 degrees C are reported and analyzed in terms of Arrhenius, Eyring, and van't Hoff relationships.
引用
收藏
页码：6405 / 6412
页数：8
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