Gas separation by diffusion through silicone rubber capillaries

✍ Scribed by John M. Thorman; Hannong Rhim; Sun-Tak Hwang

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 360 KB
• Volume: 30
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(75)85102-5

✦ Synopsis

A study of pressure drop and separation of binary gas mixtures was conducted for gaseous diffusion cells, which consist of a bundle of silicone rubber capillary tubing. The Poiseuille equation, coupled together with the permeation equation, was used to describe the flow behavior of pure gases through the tubes. A successful correlation of pressure loss data for pure gases enabled us to model the flow of binary mixtures. Agreements were quite good between theoretical and experimental pressure losses for both pure gases and mixtures.

Cascades of two and three stages were constructed out of several diffusion cells and separation experiments were carried out on these cascades. A comparison of theoretical and experimental cascade data is presented.