Experimental and Numerical Investigation of CO2 Absorption Using Nanofluids in a Hollow‐Fiber Membrane Contactor. Issue 2 (21st December 2017)

• Record Type: Journal Article
• Authors: Ansaripour, Majid; Haghshenasfard, Masoud; Moheb, Ahmad
• Other Names: Lau Woei‐Jye guestEditor.; Pérez de los Ríos Antonia guestEditor.
• Is Part Of: Chemical engineering & technology. Volume 41:Issue 2(2018)
• Page Start: 367
• Page End: 378
• Publication Date: 2017-12-21
• Subjects: CO2 absorption -- Computational fluid dynamics -- Hollow‐fiber membrane -- Nanofluids; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201700182
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: To remove CO2 from N2 /CO2 gas mixtures, α ‐Al2 O3 /water and γ ‐Al2 O3 /water nanofluids have been used in a dialysis nanoporous hollow‐fiber membrane contactor. The mass transfer coefficient, CO2 removal efficiency, and CO2 concentration profile were determined under different operating conditions. The results showed that the addition of α ‐Al2 O3 and γ ‐Al2 O3 nanoparticles to the solvent increased the mass transfer rate, and by raising the nanofluid concentration, the removal efficiency enhanced. The process was simulated by means of computational fluid dynamics (CFD) method. The good agreement between CFD predictions and experimental results indicates that the CFD is a reliable tool for optimization of the process. Abstract : Gas‐liquid hollow‐fiber membrane contactors are favorable alternatives to conventional absorption techniques for CO2 capture. For removal of CO2 from a N2 /CO2 gas mixture, α ‐Al2 O3 /water and γ ‐Al2 O3 /water nanofluids were applied in a dialysis nanoporous hollow‐fiber membrane contactor. The nanofluids enhanced significantly the mass transfer coefficients and absorption rates of CO2 .