Examination and Improvement of the Taguchi-Based Nanofluids Impact on CO2 Absorption using Al2O3 Nanoparticles

Abstract

In this study, a batch absorption reactor was used to evaluate the nanofluid of a binary aqueous solution of monoethanolamine and 2-amino-2-methyl-1-propanol (MEA/AMP) with nanoparticles of aluminium oxide (Al₂O₃) as a solvent used to remove carbon dioxide (CO₂) from simulated flue gas. Furthermore, the application of the Taguchi experiment design method determined the optimal conditions for the absorption process. This research focuses on the CO₂ absorption process and the optimal conditions related to nanoparticle addition. The main effects of using nanofluid were investigated. The concentration of nanoparticles, nanoparticle size, and stirrer speeds were the evaluated factors. It found that the best conditions for using nanofluids in the absorption process were 0.00293 g/s, which is suitable for industrial applications using nanofluids.