Exhaust gas treatment apparatus and method

Details Exhaust gas treatment apparatus and method Exhaust gas treatment apparatus and method

1997-09-04

1999-12-14

Tran, Hien

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

422169, 422171, 422224, 422225, 422108, 423235, 423237, 42324308, 423555, C01B 1700, B01D 5334

Patent

active

060013214

ABSTRACT:
An exhaust gas treatment apparatus for the removal of at least a sulfur dioxide gas and ammonia from an exhaust gas by bringing the exhaust gas into vapor-liquid contact with an absorbing liquid comprises an introduction-side tank to which the absorbing liquid is supplied, a parallel-flow type absorption tower positioned above the introduction-side tank; an ejection side tank positioned adjacent the introduction side tank; a counter-flow type absorbing tower positioned above the ejection side tank; a mist eliminator for removing splash mist from the exhaust gas; and a controller for controlling the pH of the absorbing liquid in one of the introduction-side absorption tower and the ejection-side absorption tower.

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

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