A two-dimensional (2D) model was developed for CO₂ removal from a gas mixture using a hollow fiber membrane contactor. Nanofluids of silica and carbon nanotube (CNT) nanoparticles were used as absorbents. The governing equations were solved using computational fluid dynamics technique (CFD). The results of the model were compared with the experimental data and good agreements confirmed the validity of the developed mass transfer model. The results showed that increasing absorbent flowrate enhances the CO₂ absorption rate, especially at a low flowrate. The performance of CNT nanofluids is much better than nanosilica. At high liquid flowrate (40 L/h) CNT captures CO₂ up to 53.53% while nanosilica captures 37.38%. Also, an increase in the concentration of CNT nanofluid from 0.2 to 0.5 wt.% at a constant flowrate of 20 L/h leads to 20% increase in the CO₂ separation while its enhance for nanosilica is 16%.

开发了使用中空纤维膜接触器从气体混合物中去除CO ₂的二维（2D）模型。二氧化硅和碳纳米管（CNT）纳米颗粒的纳米流体用作吸收剂。使用计算流体动力学技术（CFD）求解了控制方程。该模型的结果与实验数据进行了比较，良好的一致性证实了所建立的传质模型的有效性。结果表明，增加吸收剂流速提高了CO ₂吸收率，特别是在低流速下。CNT纳米流体的性能比纳米二氧化硅好得多。在高液体流量（40 L / h）下，CNT捕获CO ₂高达53.53％，而纳米二氧化硅占37.38％。同样，以20 L / h的恒定流量将CNT纳米流体的浓度从0.2 wt。％增加到0.5 wt。％会导致CO ₂分离率增加20％，而其对纳米二氧化硅的增强作用则为16％。