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Improving CO₂ Capture Performance of Aqueous MDEA Through Hybridization of Sulfolane and MIL-101-NH₂(Cr) | ||
| Pollution | ||
| دوره 12، شماره 1، فروردین 2026، صفحه 433-447 اصل مقاله (1.2 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/poll.2025.402056.3109 | ||
| نویسندگان | ||
| Razieh AghehroChaboki1؛ Alireza Asghari* 1؛ Ahmad Tavasoli2؛ Maryam Rajabi1 | ||
| 1Department of Chemistry, Semnan University, Semnan, Iran | ||
| 2School of Chemistry, College of Science, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| To improve the absorption and desorption performance of aqueous MDEA solution, a hybrid solvent composed of 40 wt.% MDEA and 20 wt.% Sulfolane was prepared and systematically evaluated under varying pressure conditions. At (0.1–0.5 MPa) pressures, the conventional aqueous MDEA solution exhibited a higher CO₂ absorption capacity in comparison to the hybrid solution, indicating its effectiveness in less pressurized environments. However, under high-pressure (>0.5 MPa) conditions, the hybrid solution demonstrated superior performance, reaching 3.28 mol·kg⁻¹ CO₂ molality, compared to 2.94 mol·kg⁻¹ for the conventional solution. This enhanced capacity highlights the beneficial interaction between MDEA and sulfolane at elevated pressures. Additionally, the hybrid formulation improved the regeneration efficiency by 3.7% relative to the standard MDEA solution, indicating better solvent recyclability. The incorporation of 0.1 wt.% MIL-101-NH₂(Cr) nanoparticles into the hybrid solvent further enhanced system performance, increasing CO₂ molality by 17.1% suggesting enhanced surface area, the porous surface, the amine functional groups and active site availability for CO₂ interaction. elevating the regeneration efficiency to 99.45% at an operating temperature of 80°C, demonstrating the underscoring the synergistic role of nanomaterials in advancing solvent-based CO₂ capture technologies. | ||
| کلیدواژهها | ||
| CO₂ absorption؛ Regeneration efficiency؛ High-pressure absorption؛ Hybrid solvent؛ Metal Organic Framework (MOF) | ||
| مراجع | ||
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