Apparatus and method for treating waste gas from urea prilling t

Details Apparatus and method for treating waste gas from urea prilling t Apparatus and method for treating waste gas from urea prilling t

1976-12-08

1978-08-01

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55233, 55240, 55259, 261100, 261116, B01D 4700

Patent

active

041040414

ABSTRACT:
This invention relates to a process for treating the waste gas discharged from a urea prilling tower and an apparatus therefor. More particularly, this invention relates to a process for treating the waste gas discharged from a urea prilling tower and an apparatus therefor, characterized by that a continuous liquid or water film flow (hereinafter called merely a liquid film) of a scrubbing solution and/or an absorption liquid (hereinafter called merely a scrubbing solution) is formed so as to traverse across the whole passage of the waste gas within the scrubbing tower, and when the waste gas passes through such a liquid film the fumy minute particles (hereinafter called fumes) of urea, about 1 micron in size, which are contained in said waste gas, are removed by contacting with the scrubbing solution.

REFERENCES:
patent: 1810410 (1931-06-01), Alldredge
patent: 3064408 (1962-11-01), Erga et al.
patent: 3713277 (1973-01-01), Sackett, Sr.
patent: 3941572 (1976-03-01), Uchiyama et al.

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