Phase and area contributions to mass transfer kinetics

✍ Scribed by A. J. Teller

• Publisher: American Institute of Chemical Engineers
• Year: 1961
• Tongue: English
• Weight: 526 KB
• Volume: 7
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690070128

✦ Synopsis

A relationship has been developed describing quantitatively the factors affecting packed column performance. The relationship, based on the Colburn equation, is proposed within the limits of a consistent flow regime in the liquid phase. Via separation of the effects of packing geometry an diffusion rates and the effect of area data. The appearance of a maximum in the relationship of H,G vs. G in the range of 60% of variation with flow rate, single phase transfer rates can be obtained from over-all mass transfer flooding is explained by the large increase of the term H O G / a4 (8ac/8Gm) relotive to the term 7 / 0 6 (8Hoa6/8G,). The ammonia-air-system behavior is analyzed via this relationship. It is found that the gas phase resistance varies between 72 and 94% of the over-oll resistance os a -=("-) aG, L (7) By analogy to Equation ( 5 ) , I , . function of flow rate.