experimental investigation the absorption of co2 by various nanofluids in a wetted-wall column

In the present work, a new method for enhancing the mass transfer coefficient in the gas absorption process is reported co2 absorption experiments were carried out in a wetted wall column using different aqueous nanofluids as the solvent in this work, al2o3/water, and tio2/water nanofluids were used as solvent effect of liquid flow rates , nanofluids type and also effect of nanoparticles concentration on the mass transfer rate and mass transfer coefficients were investigated al2o3/water nanofluid with concentration of 001, 005, 01, 05 v/v%, tio2/water nanofluid with concentration of 005, 01 and 05 v/v % have been used experimental results showed that the al2o3/water nanofluid has higher mass transfer rate and mass transfer coefficient in comparison to the base fluid (water) mass transfer coefficient and mass flux were enhanced for al2o3/water nanofluid and the enhancement value was increased with increasing of nanoparticle concentration also transfer coefficients and mass flux have decreased by using tio2/water nanofluid