Trough-type scale traps

Details Trough-type scale traps Trough-type scale traps

B - Operations, Transporting

01

D

183/107, 23/405

B01D 50/00 (2006.01)

Patent

CA 1050444

ABSTRACT OF THE DISCLOSURE A trough-type scale trap for use with a refinery or chemical plant reactor having a catalyst bed subject to plugging by fine particles is disclosed. Compared to prior art traps, the trough-type scale trap of the invention is characterized by a larger volumetric capacity and screen area and is substantially easier to construct and to install or remove from closed reactor vessels than conventional traps. Its typical embodiment is as a series of parallel troughs having rectangular openings and disposed chordally across the reactor normal to the direction of flow. In one embodiment, the trough is a rectangular parallele- piped; in another embodiment, the substantially rectangular opening is reduced by tapering to a bottom significantly smaller than the inlet opening.

247961

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