The change in the physical properties of the fluid in a packed-bed reactor operating under a fixed pressure drop may lead to steady-state multiplioity, with each state corresponding to a different inlet velocity. Using a pseudo-homogeneous plug flow model with no axial dispersion we determine the co
Multiple steady states of a crossflow moving bed reactor: Theory and experiment
β Scribed by C.M. Marb; D. Vortmeyer
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 813 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0009-2509
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β¦ Synopsis
An adiabatic moving bed reactor with crossflow was investigated experimentally in the sensitive range of multiple steady states. The experiments were performed with the exothermic catalytic ethane oxidation. The mathematical modehng with the two-phase and the pseudo-homogeneous two-dimensional model shows that the boundary conditions have a strong influence on the numerical solution. Agreement between experiment and theory was best for the solutions of the two-phase model with Danckwerts boundary conditions.
π SIMILAR VOLUMES
NOTATION numencal coefficient (subscnpt refers to the equation where It IS defined) drop dmmeter, m maxlmum drop dmmeter, m Sauter mean drop dmmeter, m Impeller diameter, m Impeller speed, s-' power mput to the unpeller, W power mput per umt mass, W kg-' power Input Per umt mass m the volume swept b
An optimal steady-state sequential distributed filter has been derived and tested. A iimitedmemory type modification is presented and shown to have superior convergence properties compared to the optimal filter when a number of replicate data sets are available for processing. Experimental data from