Solubility and viscosity for CO2 capture process using MEA promoted DEAE aqueous solution

The saturated solubility of CO 2 in monoethanolamine (MEA) promoted 2-diethylaminoethanol (DEAE) aqueous solution was investigated at temperatures ranging from (303.2 to 323.2)   K. The mass fraction and temperature dependences of the saturated solubility and CO 2 loading are illustrated. The viscosities of both CO 2 -unloaded and CO 2 -loaded DEAE–MEA aqueous solutions were measured and then calculated by using the Weiland equation. The effects of temperature, mass fraction and CO 2 loading on viscosities are demonstrated.