Open AccessInvestigation on Solubility of Carbon Dioxide in the Mixed Aqueous Solution of MEA and 2-MAE
Author(s) -
Thidarat Meekoch,
Kreangkrai Maneeintr
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/859/1/012010
Subject(s) - solubility , amine gas treating , chemistry , aqueous solution , solvent , carbon dioxide , absorption (acoustics) , ethanol , absorption capacity , nuclear chemistry , organic chemistry , materials science , chemical engineering , engineering , composite material
Absorption with amine solution is a method to reduce CO 2 causing climate change. The commercial amine solution is MEA. The disadvantage of MEA is low CO 2 -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 CO 2 solubility in the mixture of MEA and 2-MAE at 15:15 %wt, from 30 °C to 80 °C and CO 2 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.