چكيده انگليسي :
82 Mathematical modeling of CO2 reactive absorption by monoethanolamine solution in spray and packed column Firooze Dianati f dianati@ce iut ac ir Date of submission August22 2015 Department of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisors Dr S Saied Nuri Khorasani saied@cc iut ac irDr Mohsen Nasr Esfahani m nasr@cc iut ac irAbstractIn this study mathematical modeling of CO2 reactive absorption by monoethanolaminesolution in spray and packed column has been investigated Considering liquid filmformation and effect of it on gas phase mass transfer coefficient and absorption efficiencyis one of the novelty aspects of this study Ignoring liquid film formation causes error 10 A tuning coefficient for gas phase mass transfer in no film modeling with 80 ofexperimental data using Genetic Algorithm was achieved Inter tuning coefficient in nofilm modeling causes modeling results be closer to experimental data with determinationcoefficient 0 89 and film modeling results with determination coefficient 0 93 Alsotemperature effects and droplet diameter changing was considered that are another noveltyaspects in this study Effect of some parameters like gas flow rate liquid flow rate liquidto gas flow ratio monoethanolamine concentration in liquid phase and CO2 concentrationin gas phase on absorprion efficiency have been investigated Results of this modelingshow that gas phase mass transfer coefficient in spray column is 2 7 more than packedcolumn In final using Genetic Algorithm some operation conditions have beenoptimized Maximum absorption efficiency for spray and packed column were 100 and86 resoectively Keywords CO2 spray column packed column monoethanolamine reactive absorption geneticalgorithm
