Moving bed chamber with a regularized flow

Details Moving bed chamber with a regularized flow Moving bed chamber with a regularized flow

1998-09-04

2000-07-18

Ip, Sikyin

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including solid, extended surface, fluid contact reaction...

422216, 422219, 422220, 422232, 422233, 422311, B01J 808

Patent

active

060903511

ABSTRACT:
A chamber comprising a moving bed of solid particles, delimited by at least one screen with thickness e, circulating in a downward direction substantially parallel to the screen, the bed being traversed by at least one fluid flowing in the bed in a principal direction which is different to that of the ensemble of particles and leaving the bed by an outlet screen. In accordance with the invention, the chamber comprises at least one opening for introducing solid particles located above the bed and comprising at least one orifice for the flow of the particles, located at a distance of at least 0.6 e from the outlet screen. The chamber advantageously comprises at least two extraction openings, one extraction opening being located at a distance not more than 0.5 e from the outlet screen, and the other at a distance of at least 0.5 e from the outlet screen. The invention is applicable to catalytic reactors, in particular to catalytic reforming reactors.

REFERENCES:
patent: 2956010 (1960-10-01), Buckner, Jr.
patent: 3706536 (1972-12-01), Greenwood et al.
patent: 3854887 (1974-12-01), Heinze et al.
patent: 4277444 (1981-07-01), Van Landeghem
patent: 4498973 (1985-02-01), Sikonia et al.
patent: 5130106 (1992-07-01), Koves et al.
Trambouze, P. "Reactor Scaleup Methodology," Chemical Engineering Progress, vol. 2, Feb., 1190.

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