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Detection of degradation products of monoethanolamine - a post-combustion CO2 capture solvent
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dyson, Liesl L. Robinson, K. Attalla, M. |
| Copyright Year | 2011 |
| Abstract | Using solid phase extraction (SPE) combined with HPLC- fluorescence/photodiode array (PDA) detection several low molecular-weight alkylamines (including ethylamine and propylamine) have been detected in the gas-phase, released during the oxidative/thermal degradation of monoethanolamine (MEA), an amine-based postcombustion CO2 capture solvent. In this study, a 30 wt% aqueous MEA solution was degraded in the presence of a 13% CO2, 10% O2, 77% N2 gas stream, and temperature of 60 C, over a period of 124 hours. Mild carbon-steel metal shavings were added to the aqueous amine solution to catalyse degradation and simulate conditions similar to that found under typical operating conditions of an amine-based PCC plant. Samples of the exhaust gas were collected at regular intervals (every 4-6 hours), by drawing a portion of the exhaust gas stream into a XAD-7 sorbent cartridge coated in 10% NBD-Cl by weight. Samples were collected over a 50 min period, desorbed, and analysed for the presence of low molecular-weight alkylamines. |
| Starting Page | 2621 |
| Ending Page | 2621 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.conference.net.au/chemeca2011/papers/547.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
