Ultrasound irradiation for desorption of carbon dioxide gas from aqueous solutions of monoethanolamine

作者：Tanaka Kosuke^*; Fujiwara Tatsuo; Okawa Hirokazu; Kato Takahiro; Sugawara Katsuyasu

来源：Japanese Journal of Applied Physics, 2014, 53(7): 07KE14.

DOI：10.7567/JJAP.53.07KE14

In this study, we investigated the use of ultrasound irradiation to remove CO2 gas from aqueous solutions of monoethanolamine (MEA). The desorption rate of CO2 was measured while MEA solutions were exposed to 28 kHz ultrasound irradiation at 25 degrees C. The results showed that the rate of CO2 desorption from a low-concentration MEA (0.2mol/l) solution is significantly increased by ultrasound irradiation as compared with that of desorption by stirring at a low temperature (25 degrees C). It was also found that decreasing the concentration of MEA solutions increased the rate of CO2 desorption. In addition, we considered the process of desorption of CO2 from MEA solutions according to experimental results.

• 出版日期2014-7