Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1983-02-14
1987-03-17
Hart, Charles
Gas separation
Means within gas stream for conducting concentrate to collector
55 80, B01D 4705
Patent
active
046505024
ABSTRACT:
Systems and methods are provided for separating a first pressurized gaseous aqueous ammonia stream into a second gaseous ammonia stream having a higher ammonia concentration than the first stream and a third gaseous aqueous ammonia stream of reduced pressure and lower ammonia concentration than the first stream. Apparatus for accomplishing this comprises (1) heat exchange means for partially condensing the first gaseous stream to produce the second gaseous stream and a liquid aqueous ammonia stream having a lower ammonia concentration than the first stream, (2) means for separating the second gaseous stream from the liquid stream, (3) means for lowering the pressure of the liquid stream, and (4) means for indirectly contacting the liquid stream having a reduced pressure with the first gaseous stream in a heat exchange relationship at the heat exchange means for partially condensing the first gaseous stream to thereby vaporize the liquid stream, at least in part with the heat of condensation from the first gaseous stream. The apparatus may also include means for separately recycling the second and third gaseous streams through the apparatus of this invention to further concentrate the ammonia and to further remove ammonia with respect to these streams. This apparatus is especially energy efficient and very economically provides a concentrated gaseous aqueous ammonia stream which can be further processed for recovery of the ammonia or be incinerated without the addition of further fuel. Gaseous aqueous ammonia streams of low ammonia concentration require additional fuel to be added to accomplish incineration.
REFERENCES:
patent: 2500291 (1950-03-01), Liebel et al.
patent: 2808125 (1957-10-01), Buck et al.
patent: 3186795 (1965-06-01), Fields et al.
patent: 3702525 (1972-11-01), Simonet et al.
patent: 3985863 (1976-10-01), Rice et al.
patent: 4002565 (1977-01-01), Farrell et al.
patent: 4011066 (1977-03-01), Bratzlev et al.
patent: 4119412 (1978-10-01), Advani
patent: 4120667 (1978-10-01), Gettert et al.
Hart Charles
Krayer William L.
United States Steel Corporation
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