Catalyst removal system

Details Catalyst removal system Catalyst removal system

1996-10-31

1998-11-24

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

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

15347, 15421, 154151, 137545, 502 27, 502 34, 502523, 134 21, B01J 808, B01J 2034, A47L 902, B08B 504

Patent

active

058402608

ABSTRACT:
Dangers of catalyst removal are decreased while the efficiency of the process is increased by provision of a new nozzle. The nozzle is two concentric pipes connected at one end, with the inner pipe extending slightly beyond the outer pipe at the other end. The outer pipe has orifices provided at the connected end which communicate with the exterior of the outer pipe and the space between the inner and outer pipes. A vacuum is pulled on the inner pipe which, in turn, causes gas to enter the space between the inner and outer pipes via the orifices. As the gas sweeps around the end of the inner pipe, it entrains catalyst particles and carries the particles into the inner pipe. The inner pipe extends beyond the reaches of the outer pipe to a distance such that the angle formed between the ends of the inner and outer pipes is approximately equal to the angle of repose of the catalyst.

REFERENCES:
patent: 2529499 (1950-11-01), Jankelson
patent: 3854899 (1974-12-01), Germain et al.
patent: 4863884 (1989-09-01), Tasker et al.
patent: 5114685 (1992-05-01), Sapoff

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