Degradation of Amine Solvents in a CO2 Capture Plant at Lab-Scale: Experiments and Modeling
| Autor: | Benoît Valentin, Serena Delgado, Domitille Bontemps, Olivier Authier |
|---|---|
| Přispěvatelé: | EDF R&D (EDF R&D), EDF (EDF), Mécanique des Fluides, Energies et Environnement (EDF R&D MFEE), EDF (EDF)-EDF (EDF) |
| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
General Chemical Engineering 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 7. Clean energy 6. Clean water Industrial and Manufacturing Engineering Solvent Piperazine chemistry.chemical_compound [CHIM.GENI]Chemical Sciences/Chemical engineering Pilot plant 020401 chemical engineering chemistry Chemical engineering 13. Climate action Carbon dioxide [CHIM]Chemical Sciences Degradation (geology) Amine gas treating 0204 chemical engineering Absorption (chemistry) 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Industrial and engineering chemistry research Industrial and engineering chemistry research, American Chemical Society, 2018, 57 (18), pp.6057-6067. ⟨10.1021/acs.iecr.7b05225⟩ |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.7b05225 |
| Popis: | Carbon dioxide (CO2) concentrations in the atmosphere have increased significantly over the past century. Many methods have been devised to reduce CO2 industrial emissions, e.g., CO2 postcombustion absorption by amine-based solvents. Solvent degradation losses are very critical in this process, due to economic and environmental issues. The two main degradation pathways of amine-based aqueous solutions in the presence of CO2 are oxidative and thermal degradation. In this work, a lab-scale pilot plant has been set up to carry out degradation experiments during continuous and dynamic cycles of absorption and stripping with three different amine solvents: MEA (monoethanolamine) used as benchmark solvent for CO2 capture, a blend of 1MPZ (1-methylpiperazine) and PZ (piperazine), and a blend of MDEA (methyldiethanolamine) and MEA. The experimental data have been used to assess the performance of CO2 absorption over time and experimental conditions. The variation of CO2 fraction at the gas outlet of the reactor h... |
| Databáze: | OpenAIRE |
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