Process for the cleaning of a packed column

Details Process for the cleaning of a packed column Process for the cleaning of a packed column

1988-08-12

1990-08-28

Konopka, Paul E.

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

55 73, 55 90, 55233, 55242, 134 2213, 134 2214, 134 2217, 134 2219, 261 98, 422170, 423224, 423226, 423228, 423232, 4235731, B08B 900, B01D 5334, C01B 1705

Patent

active

049522477

ABSTRACT:
In a process for cleaning, cleaning a packed column utilized in a gas scrubbing operation wherein the packing is obstructed by solids formed during the scrubbing step, the obstructions are removed in a maximally economical fashion and without interrupting of normal operation. The packed column contains at least n, wherein n>1, superimposed packed beds spatially separated from one another. During cleaning, the lowermost up to maximally the (n-1)th packed bed are flooded with scrubbing agent. Preferably, the packed column is used for scrubbing H.sub.2 S out of a feedgas mixture with an oxidative scrubbing agent wherein sulfur is formed during the scrubbing operation and deposited in the packed beds.

REFERENCES:
patent: 3505207 (1970-04-01), Haney et al.
patent: 4297330 (1981-10-01), Schlauer
patent: 4537752 (1985-08-01), Weber
patent: 4687496 (1987-08-01), Weber

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