Hydrodynamic models for the interpretation of the liquid flow in trickle-bed reactors

✍ Scribed by S. Sicardi; G. Baldi; V. Specchia

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 791 KB
• Volume: 35
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(80)85014-7

✦ Synopsis

Two hydrodynamic models of the hquld m a trtckle-bed reactor PE and PDE model, have been consldered, and the Influence of the ldentlficatlon method on the parameter values was exammed The employed ldentlticatlon methods were the moments method, supplemented by graphlcal determmatlons on the response curve, and the best fit method, where the minimum absolute and relative error between the calculated and expenmental response curve was adopted as ldenttficatlon cnterla Except the total hqmd hold-up, the values of the other parameters of both models were very sensltlve to the ldentlficatlon method especially at low hqmd flow rates For this reason, much care must be taken m comparmg literature results The experlmental runs were carried out with two tracer of rather ddferent ddfustvlty, no Influence of thrs on the parameter values was observed, thrs would mean, m particular, that the mass transfer between dynamic and stagnant zones 1s attnbutable to the movement of flmd streams between them