The evaporation of two-component liquid mixtures

✍ Scribed by J.F. Richardson

• Publisher: Elsevier Science
• Year: 1959
• Tongue: English
• Weight: 825 KB
• Volume: 10
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(59)80058-0

✦ Synopsis

The ~ffu~~ties of acetone, carbon tetraehloride and water vapours in air have been determined experimentally using the method first developed by WINKELMANN and values have been obtained over a range of operating conditions to an accuracy of within f 2 per cent. The evaporation of two-component liquid mixtures, consisting of a volatile and a non-volatile material has also been been studied in the same apparatus. It has been shown that, when the non-vo~t~e liquid is the denser, the liquid remains completely mixed and the evaporation rate can therefore be simply calculated for rm ideal mixture.

When the non-volatile component is the less dense, convective mixing is negligible and the mass transfer in the liquid is a process of unsteady state molecular diffusion.