Transient response of three-phase slurry reactors

✍ Scribed by Ravindra Datta; Robert G. Rinker

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 632 KB
• Volume: 39
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(84)85058-7

✦ Synopsis

Analytical time domain solutions are provided for the transient response of three-phase slurry reactors, with diffusion and first-order irreversible chemical reaction in catalyst particles, for the following disturbances: (a) step input of the reactant in the inlet gas stream; and @) when the catalyst particles are suddenly introduced into the reactor which has otherwise reached steady-state with the gas and the liquid phases flowing. Tbe results have been obtained for the general case of continuous slurry reactors but can be easily reduced for application to semi-batch slurry reactors in which there is no flow of the liquid phase. The results depend upon six dimensionless parameters and are expected to be useful for evaluating the rate and equilibrium constants from dynamic response experiments. Asymptotic solutions have also been obtained for the case of large Tbiele parameter (4 2 3) and some other simpler expressions have be-en derived as well for some limiting cases of practical signiticance. The results are accurate only for gaseous reactants of moderate or high solubility in the liquid phase and are not applicable lo those with low solubility.