Experimental Study of CO2 Absorption in a Hollow Fiber Membrane Contactor

A new experimental setup achieved by the CEP-Paris is presented. A hollow fiber membrane (Poly-3-OP) was used as gas-liquid contactors for CO2 removal from CO2-N-2 feed gas stream. CO2 is transferred from gas phase through the hollow fiber membrane contactor into a liquid phase under condition of high or low pressure. CO2 concentration is measured inlet and outlet the module by gas chromatograph. CO2 removal efficiency was given for chemical solvents monoethanolamine (MEA), N-methyldiethanolamine (MDEA) and promising blend of methyldiethanolamine and triethylene tetramine (MDEA+TETA) will be tested. The results show that an increase of solvent's flow lead to an increase of CO2 removal efficiency which is appreciably the same as well in the case of MEA as in that of MDEA+TETA when gas flow is lower than 20L/h. Effect of CO2 inlet mass percentage on removal efficiency depends on the solvents used. An important increase of CO2 removal efficiency is reached by using MDEA+TETA solutions as solvents, as well as MEA under specific operating parameters.