Discrimination of the effects of surfactants in gas absorption

✍ Scribed by J. Llorens; C. Mans; J. Costa

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 763 KB
• Volume: 43
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(88)87004-0

✦ Synopsis

By

means of a suitable experimental scheme the hydrodynamic effect and the barrier effect due to the presence of surfactants in the liquid phase have been separately evaluated. The experimental system was a lab absorption column of alternate spheres and cylinders. COz, in its pure form and diluted with N,, was absorbed into water and solutions of NaOH, without surfactants and with five different surfactants. Under theconditions studied the barrier effect appears to be of less significance. The hydrodynamiceffect provides a good explanation for the observed reduction of the absorption. An equation is presented to estimate the reduction of the absorption rate due to the surfactants as a function of the interfacial pressure.