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Kinetics and mechanism of diethanolamine degradation in aqueous solutions containing carbon dioxide

โœ Scribed by C. J. Kim; G. Sartori

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
423 KB
Volume
16
Category
Article
ISSN
0538-8066

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โœฆ Synopsis

The problem of diethanolamine (DEA) degradation in gas-treating processes was quantified through a detailed kinetic study. This reaction was found to be catalyzed by COz, and degradation occurs in a successive manner to 3-(2-hydroxyethyl)oxazolidone-2, to N,N,N'-tris(2-hydroxyethyl)ethylenediamine and then to N,Nf-bis(2-hydroxy-ethy1)piperazine. A reaction mechanism consistent with these observations was proposed and tested through kinetic analyses. A satisfactory kinetic model which can be of practical use was derived.

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