The outer basket serves as the outer screening assembly in radial flow systems. This self-supporting component extends parallel to the vessel wall, defining the outer boundary of the catalyst bed while facilitating bidirectional flow distribution and collection.
Manufactured as a single-unit structure spanning the full vessel cross-section, the basket is secured to a support ring welded to the shell. Its self-supporting design maintains a consistent annular gap with the vessel wall, enabling higher flow capacity while remaining independent of shell-induced stresses. The assembly withstands full mechanical loads from the catalyst bed without transmitting stress to the vessel structure. For high-temperature operations, refractory lining may be applied to the shell to prevent hotspot formation.
Key Features & Benefits
Enables uniform radial flow distribution/collection
Withstands full catalyst bed mechanical load
Maintains stable flow geometry in both directions
Reduces shell stress transmission
Suitable for high-temperature environments
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