Wet waste flue gas desulfurizing process using lime as absorbent

Details Wet waste flue gas desulfurizing process using lime as absorbent Wet waste flue gas desulfurizing process using lime as absorbent

1976-03-18

1977-08-09

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 94, 423242, B01D 5314

Patent

active

040408035

ABSTRACT:
A wet waste flue gas desulfurizing process using lime as absorbent, wherein a sulfur oxide-containing waste flue gas is washed with a liquid absorbent containing calcium hydroxide or calcium carbonate for the purpose of removing the sulfur oxide from said waste flue gas, characterized in that an absorbing device is divided into two stages, i.e. a former stage absorbing device and a latter stage absorbing device, arranged in tandem with respect to the flow of said waste flue gas, and the liquid absorbent is circulated in the former stage absorbing device at a lime available percentage of more than 96% and in the latter stage absorbing device at a lime available percentage of 85 - 95%.

REFERENCES:
patent: 3556722 (1971-01-01), Owaki
patent: 3794714 (1974-02-01), Atsukawa et al.

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