Experimental Investigation of Carbon Dioxide Absorption Using Aqueous Solution of 2-(Isopropylamino)Ethanol and N-Methyldiethanolamine

Today, global warming and rising earth's temperature are a major environmental issue# among the greenhouse gases, co2 contributes to global warming effectively# many new methods have been introduced to reduce or prevent co2 emmision to the environment# one of the most commonly used technologies for co2 capture processes is chemical absorption using aqueous amine solutions# in this study, the solubility of co2 in amine solutions of 2-isopropylaminoethanol (ipae) and n-methyldiethanolamine (mdea) and their mixtures is investigated# the experiments were carried out using 12#5 wt# % mdea+2#5 wt# % ipae (as pure or mixed solvents) at the temperature range of 303#15-333#15 k and pressures range of 117#62- 634#59 kpa# the results showed that mdea has a high absorption capacity, and ipae has higher absorption rate # the heat of co2 absorption was calculated for the mixture using the clausius-clapeyron equation# it was observed that the addition of 2#5 wt# % ipae to mdea results in a significant increase in reaction rate and reduce heat of absorption#