Abstract
Data are presented for the solubility of methane and of ethane in a 3 kmol/m3 (34.7 mass %) solution of methyldiethanolamine. Temperatures in this study ranged from 25 to 130 °C and pressures to 13 MPa. The data were incorporated into a rigorous thermodynamic model that has been applied to other similar systems. The model is a combined Raoult's law−Henry's law approach. The solubilities in the alkanolamine solution are correlated in terms of the salting-in ratio, the ratio of the mole fraction solubility in the amine solution to that in pure water.
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