Kinetic Study of Post Combustion CO2 Absorption by Methyldiethanolamine 30 wt.% and Hexylamine 10 wt.% as New Aqueous Solution
The main drawback of conventional alkanolamines for post combustion CO2 capture is that they cannot combine a low energy consumption for regeneration and a high reactivity. Blends of tertiary and primary amines provide these two advantages at the same time. This study considers a new composition of...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
AIDIC Servizi S.r.l.
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/ee22b210dc4a49d89514e0a91eadcd04 |
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| Sumario: | The main drawback of conventional alkanolamines for post combustion CO2 capture is that they cannot combine a low energy consumption for regeneration and a high reactivity. Blends of tertiary and primary amines provide these two advantages at the same time. This study considers a new composition of solvent for carbon capture: methyldiethanolamine (MDEA) 30 wt.% and hexylamine (HA) 10 wt.%. MDEA acts as regeneration promoter and HA as activator. The kinetics of this solvent is assessed through an optimization method based on a genetic algorithm and at different temperatures (25 °C, 40 °C and 60 °C), in order to determine the Arrhenius law. The reaction considered is a first order reaction where each amine reacts with CO2 in parallel. The composition studied does not give better results than MDEA alone. This is probably due to the addition of a too large amount of hexylamine. |
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