Process for cleaning a packed column

Details Process for cleaning a packed column Process for cleaning a packed column

1986-04-17

1987-08-18

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 90, 55242, 55233, 423224, 134 2212, B01D 5314

Patent

active

046874968

ABSTRACT:
A process is disclosed for the cleaning of a clogged packed column. The packed column is utilized for gas cleaning in a scrubbing operation carried out with a scrubbing medium, and becomes plugged by deposits which form during operation. In order to be able to effectively and economically break up these deposits, the packed column is flooded, e.g., with a scrubbing medium, wherein the flooding fluid has a specific gravity greater than that of the particles of packing material. During the flooding of the packing, the deposits are broken up by flotation of the packing material. Preferably, the packed column can thus be utilized in scrubbing out H.sub.2 S in an oxidative scrubbing process in which sulfur deposits form.

REFERENCES:
patent: 3122594 (1964-02-01), Kielback
patent: 3302372 (1967-02-01), Hynson et al.
patent: 3364656 (1968-01-01), Whiton et al.
patent: 3727381 (1973-04-01), Kreimann
patent: 4166730 (1979-09-01), Warhol
patent: 4533367 (1985-08-01), Hadzismatlovic
patent: 4537752 (1985-08-01), Weber
Kohl, Riesenfeld, "Gas Purification", Third Edition, pp. 476 following, 1979.

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