Flue gas treating process and system

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

1998-03-03

2000-08-01

Griffin, Steven P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

42324301, 42324308, 42324401, 42324408, 423555, B01D 5350

Patent

active

060962798

ABSTRACT:
Flue gas is treated for the presence of SO.sub.3, without resorting to ammonia injection, by adding a powder into the flue gas and subsequently bringing the flue gas into gas-liquid contact with an absorbing fluid, whereby the SO.sub.2 present in the flue gas is removed by absorption into the absorbing fluid. The treatment process may also include introducing the flue gas into a dust collector, whereby dust, including the powder present in the flue gas, is collected, and/or recovering heat from the flue gas by means of a heat exchanger, whereby the flue gas is cooled. A system for treating flue gas is also provided.

REFERENCES:
patent: 4696804 (1987-09-01), Shinoda et al.
patent: 5246680 (1993-09-01), Pikkujamsa
patent: 5470556 (1995-11-01), Samish
patent: 5814288 (1998-09-01), Madden et al.

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