Resumo

SALIMI, J.  e  SALIMI, F.. CO₂ capture by water-based Al₂O₃ and Al₂O₃-SiO₂ mixture nanofluids in an absorption packed column. Rev. Mex. Ing. Quím [online]. 2016, vol.15, n.1, pp.185-192. ISSN 1665-2738.

In the present work, the influence of mixture of Al2O3 and Al2O3 - SiO2 nanoparticles in base fluid water (nanofluid) on absorption of CO2 in a packed column was investigated. The effects of concentration of nanoparticles and types of nanoparticles on the absorption rate were investigated. The packed column was used to study gas liquid countercurrent flow. The results indicated that the optimum value was equal to 0.05 vol% for both nanofluids, and also addition of nanoparticles increased the mass transfer rate. Besides, the maximum enhancement of mass transfer rate for nanoparticles of Al2O3 and mixture of Al2O3- SiO2 compared to the pure water was 14% and 10% at 0.05 vol% of the respectively.

Palavras-chave : absorption; carbon dioxide; nanofluids; packed column; Al₂O₃.