Modeling of CO2 absorption into 4-diethylamino-2-butanol solution in a membrane contactor under wetting or non-wetting conditions

In this work, 4-diethylamino-2-butanol (DEAB) as a new type of alkanolamine solvent is used for CO 2 capture in hollow fiber membrane contactor (HFMC). A model describing the gas and liquid reactions transport inside under wetting or non-wetting conditions was built. The countercurrent flow natural considered model. To investigate influence on decarburization efficiency, DEAB compared with other common solvents such potassium carbonate (K 3 ), triethylamine (TEA) diethanolamine (DEA). Under same operating conditions, impact parameters humidity, rate, concentration, length performance examined. results indicate that has best overall especially conditions. It noted increasing decreasing rate enhance decarburization.