| 摘要 |
To obviate pressure surges in the moving bed regenerator column during the recovery of hot regenerated catalyst particles from said regenerator column, the method for the recovery periodically discharges a measured volume of said hot particles from said regenerator column into an enclosed flow dampener situated inside a catalyst hopper of substantially larger volume. The flow dampener utilized in the method comprises an openended standpipe containing a plurality of vertically spaced apart outlet means through which said flow dampener is in open communication with said catalyst hopper; said outlet means being vertically spaced apart to provide a particle hold-up volume between said outlet means substantially equivalent to the aforesaid measured volume, and being individually sized to accomodate particle flow rate up to about 50% of the average low rate at which said particles are discharged into said flow dampener. |
