Solubility of H2S, CO2 and CH4 in N-formyl morpholine

Abstract

The solubility of H₂S, CO₂ and CH₄ in N-formyl morpholine has been measured at five temperatures between 298.15 and 403.15 K at pressures up to ca. 7 MPa (13.6 MPa in the case of methane). The experimental data were correlated by the Peng–Robinson equation of state. Parameters for the N-formyl morpholine were estimated from liquid molar volumes and vapour pressures. Values of the binary interaction parameter were obtained from the experimental data. Using the expressions connecting the values of the binary interaction parameter with the parameters of the Krichevsky–Ilinskaya equation, Henry's coefficients for the three solutes were obtained.