Claims
- 1. An apparatus for the recovery of hot regenerated catalyst particles from a moving bed regenerator column which comprises:
- (a) means for periodically discharging a measured volume of said hot particles from said regenerator column into a flow dampener situated inside a catalyst hopper of substantially larger volume;
- (b) said flow dampener comprising an enclosed chamber and an open-ended standpipe, the major portion of the standpipe being within said chamber and having its lower open end below the bottom of the chamber, said major portion of the standpipe within the chamber containing a plurality of vertically spaced apart outlet openings through which said flow dampener is in open communication with said catalyst hopper;
- (c) said outlet openings being vertically spaced apart to provide a particle hold up volume between said outlet openings substantially equivalent to the aforesaid measured volume; and,
- (d) said outlet openings being individually sized to accommodate a particle flow rate up to about 50% of the average flow rate at which said particles are discharged into said flow dampener, whereby a substantially continuous flow of hot particles is discharged from said flow dampener through said outlet openings and into said catalyst hopper.
- 2. The apparatus of claim 1 further characterized in that said standpipe comprises four vertically spaced apart outlet openings.
- 3. The apparatus of claim 1 further characterized in that said standpipe comprises four vertically spaced apart outlet openings, the lowermost of which is sized to accommodate a particle flow rate about 50% of the average rate at which said particles are discharged into said flow dampener, and the remaining outlets are individually sized to accommodate a particle flow rate about 25% of the average rate at which said particles are discharged into said flow dampener.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a Division of a copending application Ser. No. 132,969 filed Mar. 24, 1980, and now abandoned.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
132969 |
Mar 1980 |
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