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Modeling and Optimization of Carbon Dioxide Absorption in Deep Eutectic Solvent

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Název: Modeling and Optimization of Carbon Dioxide Absorption in Deep Eutectic Solvent
Autoři: Hiba K. Nasif, Ahmed Daham Wiheeb
Zdroj: Diyala Journal of Engineering Sciences, Vol 18, Iss 2 (2025)
Informace o vydavateli: University of Diyala, College of Science, 2025.
Rok vydání: 2025
Témata: Deep eutectic solvents, Mechanics of engineering. Applied mechanics, Environmental engineering, TA213-215, TA349-359, TA170-171, CO2 capture, Absorption, TK1-9971, Choline chloride, Engineering machinery, tools, and implements, Chemical engineering, Response surface methodology, TP155-156, Electrical engineering. Electronics. Nuclear engineering
Popis: Reducing carbon dioxide (CO2) emissions into the atmosphere is the most crucial objective since this results in higher temperatures, pollution, health problems and acid rain. This research focuses on the modeling and optimization of CO2 capture from flue gas by deep eutectic solvent (DES) synthesized from choline chloride/monoethanolamine (ChCl/MEA) using statistical design of experiments (DoE). The synthesized DES and the raw materials were characterized for the presence of functional groups using Fourier transform infrared (FTIR) spectrometry. The impact of three process parameters, operating temperature (25–45°C), molar ratio of ChCl to MEA (0.1–0.5) and inlet CO2 concentration (5–20%) on the CO2 absorption loading performance were investigated. A model to correlate the impact of process parameters on CO2 absorption loading was constructed using the response surface methodology (RSM) in conjunction with central composite design (CCD). The analysis of variance (ANOVA) validated the quadratic model's high significance at a 95% confidence interval to identify the optimal process parameters for the absorption performance. Furthermore, CO2 absorption loading was computed according to the experimental data; the optimal process parameters to achieve the maximum CO2 absorption loading at 8.647 mole CO2/kg solvent at a molar ratio of ChCl to MEA 0.1, an inlet CO2 concentration of 20% and an operating temperature of 32°C
Druh dokumentu: Article
ISSN: 2616-6909
1999-8716
DOI: 10.24237/djes.2024.18214
Přístupová URL adresa: https://doaj.org/article/c52ed8312d504cadb4e25096a7920666
Rights: CC BY
Přístupové číslo: edsair.doi.dedup.....60b31f34fcc6776f3a4651d82666931d
Databáze: OpenAIRE
Popis
Abstrakt:Reducing carbon dioxide (CO2) emissions into the atmosphere is the most crucial objective since this results in higher temperatures, pollution, health problems and acid rain. This research focuses on the modeling and optimization of CO2 capture from flue gas by deep eutectic solvent (DES) synthesized from choline chloride/monoethanolamine (ChCl/MEA) using statistical design of experiments (DoE). The synthesized DES and the raw materials were characterized for the presence of functional groups using Fourier transform infrared (FTIR) spectrometry. The impact of three process parameters, operating temperature (25–45°C), molar ratio of ChCl to MEA (0.1–0.5) and inlet CO2 concentration (5–20%) on the CO2 absorption loading performance were investigated. A model to correlate the impact of process parameters on CO2 absorption loading was constructed using the response surface methodology (RSM) in conjunction with central composite design (CCD). The analysis of variance (ANOVA) validated the quadratic model's high significance at a 95% confidence interval to identify the optimal process parameters for the absorption performance. Furthermore, CO2 absorption loading was computed according to the experimental data; the optimal process parameters to achieve the maximum CO2 absorption loading at 8.647 mole CO2/kg solvent at a molar ratio of ChCl to MEA 0.1, an inlet CO2 concentration of 20% and an operating temperature of 32°C
ISSN:26166909
19998716
DOI:10.24237/djes.2024.18214