Distillation at near terminal compositions: wetting effects at atmospheric and reduced pressures

✍ Scribed by A.B. Ponter; A.P. Boyes; R.N. Houlihan

• Book ID: 103002559
• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 267 KB
• Volume: 28
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(73)80057-0

✦ Synopsis

Abe&a&-Contact

angles are reported using n-propanol-water, ethanol-water and cyclohexanebenzene mixtures at concentrations near their terminal compositions, measured under distillation conditions at atmospheric and reduced pressures.

A literature survey shows that efficiencies of ,columns incorporating film contacting devices often decrease very significantly in the low composition range. By comparing the wetting data obtained for the system n-propanol-water with reported performance data using a disc column it is suggested that this behaviour is caused by wetting changes occurring in this region.