Experimental study on the effect of nanofluids on CO2 absorption from air in hollow fiber membrane contactors
Paper ID : 1155-MST2015-FULL
arman peyravi *1, peyman keshavarz2, Darioush mowla2, parisa zare2
1mola sadra St.
2School of Chemical and Petroleum Eng., Shiraz University, Shiraz, Iran.
In this work, suspensions of CNT and Al2O3 nanoparticles in distilled water are produced and tested as new absorbents in a gas-liquid hollow fiber membrane contactor to investigate the effect of nanoparticles on the mass transfer during CO2 absorption. A gas mixture was passed through the shell-side and the nanofluid was flowed co-currently through the lumen side of the fibers. The effects of different operating conditions including gas flow rate, liquid flow rate, inlet CO2 concentration, and nanoparticle concentration on the CO2 absorption have been studied. The obtained results showed that the highest absorption rate enhancements for nanofluids are 38.0% at 0.1wt% CNT and 3.0% at 0.05wt%Al2O3 compared with absorption rate by base fluid water.
Hollow fiber membrane, CO2 absorption, nanofluid, enhancement factor
Status : Paper Accepted (Oral Presentation)