Stripping process and apparatus

Details Stripping process and apparatus Stripping process and apparatus

C - Chemistry, Metallurgy

10

G

C10G 11/18 (2006.01) B01D 53/10 (2006.01) B01J 8/18 (2006.01) B01J 8/34 (2006.01) B01J 38/04 (2006.01)

Patent

CA 2447774

A baffle-style stripping arrangement for an FCC process having substantially horizontal stripping baffles is disclosed. The stripping baffles comprise a perforated section and an imperforate section which generates transverse movement of catalyst across the baffle to ensure adequate vertical movement of stripping media. The perforated section is covered with stripping openings to provide improved stripping efficiency and catalyst flux through the stripping vessel. The perforated section may comprise a grate. Baffles may also include a downcomer section which is vertically aligned with an imperforate section of a subjacent baffle.

L'invention concerne un système de rectification de type à chicanes destiné à un procédé de craquage catalytique fluide, ce système comprenant des chicanes de rectification sensiblement horizontales. Ces chicanes comprennent une section perforée et une section non perforée qui génère un mouvement transversal de catalyseur à travers la chicane pour garantir un mouvement vertical adéquat des agents de rectification. La section perforée est dotée d'ouvertures de rectification qui améliorent l'efficacité de rectification et le flux de catalyseur à travers le récipient de rectification. La section perforée peut comprendre une grille. Les chicanes peuvent comprendre également une section de goulotte de descente alignée verticalement avec une section non perforée d'une chicane sous-jacente.

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