Flue gas treating system and process

Details Flue gas treating system and process Flue gas treating system and process

1997-09-11

1999-12-28

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422169, 422224, 422225, 422108, B01D 5334

Patent

active

060077832

ABSTRACT:
This invention provides a flue gas treating system which, though having a basic construction using a small-sized and high-performance gas-liquid contact apparatus comprising the combination of a parallel-flow absorption tower and a counterflow absorption tower, can reduce the ammonia concentration in the treated flue gas to a low level. This system includes a tank (21) for holding an absorbing fluid fed thereto; an inlet side absorption tower (22) of the counterflow type which extends upward from one lateral part of the tank (21) and in which untreated flue gas (A) is introduced from its lower end and brought into gas-liquid contact with the absorbing fluid within the tank (21); and an outlet side absorption tower (23) of the parallel-flow type which extends upward from another lateral part of the tank (21) and in which the flue gas leaving the inlet side absorption tower (22) is introduced from its upper end and brought into gas-liquid contact with the absorbing fluid within the tank (21).

REFERENCES:
patent: 5132027 (1992-07-01), Ukawa et al.
patent: 5160707 (1992-11-01), Murray et al.
patent: 5246678 (1993-09-01), Ochi et al.
patent: 5840263 (1998-11-01), Shinoda et al.

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