University of Technology-IraqEngineering and Technology Journal1681-690027620090401The Effect of Surfactant Concentration on the Rate of CO2 Absorption by Carbonate Solution in Packed Tower113411423010410.30684/etj.27.6.11ENFadilH. FarajAlyaaK. MageedJournal Article20090401Absorption of carbon dioxide from gaseous mixture (carbon dioxide, air) was<br />studied by using Carbonate Solution (Na2CO3) in a counter-current packed column (7.5 cm<br />id, 1.70 m height), packed with glass rashing rings of 1.8 cm i.d to a depth of 1.1 m.<br />The effect of Surfactant concentration (dodecyl benzene sulfuric acid sodium<br />(DBS))(0.5, 1.5, 2.5gm/lit.), gas mass flux (0.05, 0.075, 0.1 kg/m2.sec) and liquid mass flux<br />(kg/m2.sec) on the absorption rate of carbon dioxide and mass transfer coefficient was<br />studied at constant carbonate concentration (0.3 kmol/m3), inlet carbon dioxide<br />concentration(0.08, Y2=0.086 mol CO2/mol air), ambient temperature and atmospheric<br />pressure. The results show that the absorption rate tends to increase with increasing gas and<br />liquid flow rate. Mass transfer coefficient (KG.a) increases with increasing liquid flow rate<br />and slightly change with increasing gas flow rate. Increasing surfactant concentration<br />(decreasing surface tension) leads to decrease the absorption rate and mass transfer<br />coefficient.https://etj.uotechnology.edu.iq/article_30104_376e6aec5e894d1737b7d73f84d010d3.pdf