Method for removing spent catalyst from a reactor tower and assembly for facilitating same
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United States of America Patent
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-
Feb 10, 1987
Grant Date -
N/A
app pub date -
Apr 2, 1985
filing date -
Apr 2, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A basket is removably inserted in the upper end of each drain tube in those interbed assemblies of a catalytic tower whose catalyst beds are to be removed upwardly by vacuuming. The basket has a grid for a bottom wall, so that catalyst particles thereabove are retained but fluid being treated in the tower can easily pass therethrough. The provision of the baskets makes it possible to downwardly drain spent catalyst from the lower bed sections while simultaneously vacuuming it upwardly from the upper bed sections.
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