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Thermal degradation of monoethanolamine at stripper conditions
Open accessAbstract
Thermal degradation of monethanolamine (MEA) is quantified as a function of initial amine concentration, CO 2 loading, and temperature over a range of expected stripper conditions in an amine absorber/stripper unit. The sum of the degradation products N,N’-di(2-hydroxyethyl)urea, 1-(2-hydroxyethyl)-2-imidazolidone, and N-(2-hydroxyethyl)ethylenediamine make up the majority of total MEA loss. The temperature dependent rate constant has an activation energy similar to diethanolamine (DEA) of 29 kcal/mole which corresponds to a quadrupling of the degradation rate when the stripper temperature is increased 17 ∘ C. At 135 ∘ C the degradation rate varies from 2.5 to 6% per week. Using speciation data from an Aspen ® model of a stripper unit, losses in the packing are significant, but the majority of MEA loss occurs in the reboiler and reboiler sump. Thermal degradation is minor when the reboiler temperature is held below 110 ∘ C
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Cites
Alternative stripper configurations for CO2 capture by aqueous amines
Oyenekan, B. A., & Rochelle, G. T. (2007) · AIChE Journal · doi:10.1002/aic.11316 · Cited by 321
Self-citationEnergy Performance of Stripper Configurations for CO2 Capture by Aqueous Amines
Oyenekan, B. A., & Rochelle, G. T. (2006) · Industrial & Engineering Chemistry Research · doi:10.1021/ie050548k · Cited by 274
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Cited by
A Review of CO2 Capture by Absorption and Adsorption
Yu, C.-H., Huang, C.-H., & Tan, C.-S. (2012) · Aerosol and Air Quality Research · doi:10.4209/aaqr.2012.05.0132 · Cited by 1,730
Metadata
- Authors
- Davis, J., & Rochelle, G.
- Venue
- Energy Procedia
- Publisher
- Elsevier BV
- Published
- 2009-02
- Volume
- 1
- Issue
- 1
- Pages
- 327-333
- ISSN
- 1876-6102 (ISSN-L)
- OpenAlex
- W2094611904
- Cited by
- 339
- References
- 2
- FWCI
- 41.25
- Type
- conference paper
- Language
- en
- Open access
- diamond
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