Abstract
Activity coefficients for hydrocarbon solutes at infinite dilution in monoethanolamine have been measured using the medium pressure gas-liquid chromatography method. The hydrocarbon solutes used were n -pentane,n -hexane, n -heptane, n -octane, n -nonane, 1-hexene, 1-heptene, 1-octene, 1-hexyne, 1-heptyne, 1-octyne, cyclopentane, cyclohexane, cycloheptane, cyclooctane, benzene, toluene, o -xylene, m -xylene and p -xylene. Activity coefficients at infinite dilution were determined at the following three temperatures:T= (288.15, 298.15, and 308.15) K. Separation factors are presented for (hexane + monoethanolamine) and (benzene + monoethanolamine) in the solvent monoethanolamine and the results are compared with other solvents. Results indicate that monoethanolamine could be an excellent solvent for the separation of alkane and aromatic mixtures.
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