Abstract
Absorption with amine solution is a method to reduce CO2 causing climate change. The commercial amine solution is MEA. The disadvantage of MEA is low CO2-loading capacity. Also, 2-(methylamino)-ethanol or 2-MAE is a new solvent developed to improve absorption performance. The aim of this work is to measure the CO2 solubility in the mixture of MEA and 2-MAE at 15:15 %wt, from 30 °C to 80 °C and CO2 partial pressures ranging from 5 to 100 kPa. From the results, at the same conditions, 30 %wt of MEA has higher absorption capacity than that of 15:15 %wt of MEA:2-MAE and 30 %wt of 2-MAE for 4.51 % and 7.04 %, respectively. For cyclic capacity, 15:15 %wt of MEA:2-MAE has capacity greater than 30 %wt of MEA for 34.10 % but lower than 30 %wt of 2-MAE for 22.78 %. A mixed-amine solution can be applied to reduce the disadvantage of MEA solution.
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