Comparative study of CO2 absorption in packed column using imidazolium based ionic liquids and MEA solution

摘要: Abstract The comparative study of CO2 absorption in ionic liquids: [Emim][Ac], [Bmim][Ac] and 15% MEA solution packed bed column is presented. Investigations were performed for low pressures, what important the case post combustion flue gases. Absorption (0.3 m length, inner diameter 0.05 m) was filled with Raschig rings ϕ5 × 5 × 1 mm. influence initial concentration, temperature, gas liquid flow direction on removal efficiency investigated. Experiments compared calculation based upon resistance series model process taking into account enhancement factor reaction between investigated liquids. results show that same experimental conditions ILs have comparable capacities solution. However need much longer times to absorb amount carbon dioxide from mixture. research new lower viscosity price needed take advantages liquids stripping column.