Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1997-05-05
1998-11-24
Tran, Hien
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
4232421, 423555, 422169, 422170, 422224, 422225, 422234, B01D 5334
Patent
active
058402632
ABSTRACT:
A flue gas treating system for removing sulfur dioxide and dust present in flue gas by gas-liquid contact with an absorbing fluid and has an inlet side absorption tower of the liquid column type and an outlet side absorption tower of the liquid column type, each of which has a uniform cross-section over the area of gas-liquid contact, and the cross-section of flue gas in the inlet side absorption tower is smaller than the cross section of flue gas in the outlet side absorption tower. The inlet side absorption tower is constructed in the form of a parallel-flow absorption tower wherein the flue gas flows downward for favorable collection of dust and absorption of sulfur dioxide. The outlet side absorption tower is constructed in the form of a counter-flow adsorption tower wherein the flue gas flows upward for favorable absorption of sulfur dioxide. The absorbing fluid within a tank is injected upward from a plurality of spray pipes.
REFERENCES:
patent: 5405433 (1995-04-01), Rogers
Higuchi Tamotsu
Iwashita Koichiro
Kawamichi Kenichiro
Kotake Shinichiro
Nagayasu Tatsuto
Mitsubishi Heavy Industries Ltd.
Tran Hien
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