Measurement of solubility of CO2 and H2S in aqueous MEA/MDEA solutions, density, and viscosity of blended alkanolamine aqueous solutions

• Main Authors: Li,Yih Chaug, 黎奕璋
• Other Authors: Li,Meng Hui
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/04514365834388583213

碩士 === 中原大學 === 化學工程研究所 === 81 === The equilibrium solubility of acidic gas (CO2, H2S) in aqueous MEA (monoethanolamine) / MDEA (methyldiethanolamine) solutions at tempratures 40, 60, 80, and 100°C, and at partial pressures of acid gas ranging from 1.0 kPa to 200 kPa have be measured. The systems studied are 20 wt% MDEA, 15 wt% MDEA + 5 wt% MEA, 5 wt% MDEA + 15 wt% MEA, 20 wt% MEA aqueous solution. The method of Hu and Chakma has been applied to correlate the measured data. This densities and viscosities of three systems of blended amine aqoueus solutions (MEA/MDEA, MEA/AMP, MEA/ PE ) at tempratures 30, 40, 50, 60, 70, and 80°C have also been studied. The blended amine aqueous solutions studied are fifteen systems for density measurements and twenty-two systems for viscosity measurements. Recently the use of blended amines in gas-treating proess is a subject of potentially major industrial importance. The data of vapor-liquid equilibrum, density and viscosity are essential for rational design of the gas-treating process. Thus, the results of this study can be used as a data base for designing the acidic gas-removal process using the aqueous MEA/MDEA solution as the absorption fluid.