Degradation of Amine Solvents Used for Co2 Removal from Flue Gas with High Co2 Concentration
, , , oraz | 17 kwi 2021
O artykule
Data publikacji: 17 kwi 2021
Zakres stron: 115 - 124
Otrzymano: 09 lis 2021
Przyjęty: 07 gru 2021
DOI: https://doi.org/10.21307/acee-2021-011
Słowa kluczowe
© 2019 Andrzej Wilk et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1.
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Figure 5.
The results of analyzed samples
| No. sample | OZD | HEEDA | HEIA | HEA | HEI |
|---|---|---|---|---|---|
| mol/dm3 | |||||
| A3.1 | 0.008 | 0.002 | 0.010 | 0.025 | 0.045 |
| A4.1 | 0.015 | 0.012 | 0.021 | 0.018 | 0.021 |
| A3.2 | 0.012 | 0.008 | 0.018 | 0.033 | 0.068 |
| A4.2 | 0.021 | 0.011 | 0.029 | 0.024 | 0.037 |
| A3.3 | 0.026 | 0.016 | 0.033 | 0.041 | 0.087 |
| A4.3 | 0.048 | 0.024 | 0.048 | 0.028 | 0.074 |
| A3.4 | 0.035 | 0.021 | 0.040 | 0.087 | 0.099 |
| A4.4 | 0.052 | 0.048 | 0.064 | 0.034 | 0.076 |
| A3.5 | 0.037 | 0.029 | 0.054 | 0.067 | 0.084 |
| A4.5 | 0.058 | 0.048 | 0.073 | 0.052 | 0.070 |
Degradation products of MEA determined in this work
| Abbr. | Name | Formula | Molar mass g/mol | CAS |
|---|---|---|---|---|
| HEI | 1-(2-hydroxyethyl)imidazole |
|
112 | 1615-14-1 |
| HEIA | N-(2-hydroxyethyl)-2-imidazolidinone |
|
130 | 3699-54-5 |
| HEEDA | N-(2-hydroxyethyl)ethylenediamine |
|
104 | 111-4-1 |
| HEA | N-(2-hydroxyethyl)acetamide |
|
103 | 142-26-7 |
| OZD | 2-oxazolidinone |
|
87 | 497-25-6 |
Repeatability and precision for all determined compounds, expressed as the variation coefficient
| Determined compound | Repeatability [%] | Intermediate precision [%] |
|---|---|---|
| OZD | 4.99 | 5.76 |
| HEDDA | 3.78 | 4.15 |
| HEIA | 4.20 | 5.06 |
| HEA | 5.49 | 6.45 |
| HEI | 6.79 | 7.24 |
Average retention time and average response factor for measured compounds
| Determined compound | Mean retention time for 10 repetitions, min | Mean response factor for 5 repetitions |
|---|---|---|
| OZD | 17.25 | 0.505 |
| HEDDA | 14.10 | 0.627 |
| HEIA | 24.84 | 0.728 |
| HEA | 16.56 | 0.569 |
| HEI | 19.96 | 0.496 |
The parameters of chromatographic analysis
| Parameter | Value |
|---|---|
| Dispenser temperature | 250°C |
| Initial oven temperature | 40°C |
| Final oven temperature | 250°C |
| Oven temperature increase | 6°C/min |
| Carrier gas flow rate | 1.0 ml/min |
| Split ratio | 10 |
| Transfer line temperature | 250°C |
| MSD working mode | SIM/FULL SCAN |
| Ionization Type | Electron (EI) |