Method and arrangement for cleansing a flow of hot contaminated

Details Method and arrangement for cleansing a flow of hot contaminated Method and arrangement for cleansing a flow of hot contaminated

1987-02-04

1988-06-14

Prunner, Kathleen J.

Gas separation

Means within gas stream for conducting concentrate to collector

55 9, 55 11, 55 13, 55 83, 55 97, 55126, 55135, 55267, 55315, 55343, B03C 301, B01D 5000, B01D 5100

Patent

active

047509163

ABSTRACT:
The invention relates to a method and an arrangement for cleansing a flow of hot contaminated gas (1), in which the contaminants comprise both dust particles and gaseous condensable contaminants. The gas is cooled in a heat exchanger in a first stage (2) to a temperature which lies above the temperature at which the gaseous contaminants begin to pass into their respective liquid phases. The gas is then cooled further, in a second stage (4), by mixing the gas with a colder gas flow (5), so as to bring the temperature of the gas to a level suitable for subsequent extraction of contaminants in a first dust separator (3, 3a), while condensing part of the gaseous contaminants present. Condensed contaminants are bound by adsorption and/or absorption to dust particles collected in the first dust separator (3, 3a).

REFERENCES:
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patent: 1508367 (1924-09-01), Matlock
patent: 2002860 (1935-05-01), Levy
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patent: 2277663 (1942-03-01), Francis et al.
patent: 2675891 (1954-04-01), Frey
patent: 3395512 (1968-08-01), Finney, Jr. et al.
patent: 3477203 (1969-11-01), Luge et al.
patent: 3899308 (1975-08-01), Petersson
patent: 4375982 (1983-03-01), Chitil

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