شماره ركورد كنفرانس :
5041
عنوان مقاله :
Experimental studies on carbon dioxide absorption using nanofluid absorbents in a hollow fiber membrane contactor
Author/Authors :
P. Zare Department of Chemical Engineering - School of Chemical and Petroleum Engineering - Shiraz University, Shiraz, Iran , P. Keshavarz Department of Chemical Engineering - School of Chemical and Petroleum Engineering - Shiraz University, Shiraz, Iran , D. Mowla Department of Chemical Engineering - School of Chemical and Petroleum Engineering - Shiraz University, Shiraz, Iran
كليدواژه :
CO2 capture , Hollow fiber membrane , Nanofluid , MWCNT , TiO2
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
Using membranes for CO2 separation has been distinguished as a productive innovation to reduce GHG emissions. In this study, stable Titania (TiO2) and multi-wall carbon nanotube (MWCNT) nanofluids are used as new absorbents in a hollow fiber membrane contactor (HFMC) for CO2 absorption. The impacts of various working factors, such as liquid flow rate, gas flow rate and concentration of nanoparticles on CO2 molar flux are explored. It is concluded that increase in the concentration of the nanoparticles, favorably affects CO2 molar flux due to the increase in Brownian motion; nevertheless, it unfavorably influences the CO2 molar flux at higher concentrations. Approximately at all test conditions, MWCNT nanofluid is more effective than TiO2 nanofluid. At gas flow rates of about 300 ml/min, the CO2 molar flux was increased by 34% for 0.15% wt. TiO2 and 50% for 0.15% wt. MWCNT nanofluid with respect to distilled water. It is obtained that the presence of nanoparticles in the base fluid could increase the absorption efficiency which is very encouraging in gas treatment industries.
