Wet-type exhaust gas desulfurizing apparatus

Details Wet-type exhaust gas desulfurizing apparatus Wet-type exhaust gas desulfurizing apparatus

1994-06-20

1995-07-04

Wityshyn, Michael G.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

261 87, 261 89, 261 93, 42324303, F01N 308, C01B 1700

Patent

active

054298083

ABSTRACT:
An apparatus for wet process exhaust gas desulfurization including a spraying portion for spreading absorbent slurry including calcium compound, an absorbing tower for bringing the absorbent slurry sprayed from the spraying portion into contact with exhaust gas including sulfur oxides from opposite directions so as to absorb the sulfur oxides in the exhaust gas into the absorbent slurry, a slurry tank disposed below the absorbing tower for receiving the absorbent slurry from the absorbing tower, a plurality of stirrers for stirring each stirrer being an axial flow type agitator having a propeller, and circular system for circulating the absorbent slurry from the slurry tank to the spraying portion. The apparatus further includes a plurality of nozzles for feeding oxidizer gas including oxygen into the absorbent slurry from a backside of each propeller towards a periphery thereof uniformly with respect to a circumferential direction, thereby bubbling the oxidizer gas finely around each propeller.

REFERENCES:
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patent: 3584840 (1971-06-01), Fuchs
patent: 3778233 (1973-12-01), Blough et al.
patent: 3802674 (1974-04-01), Hori
Nozaki, S. "Gas/Liquid Contact Device" Translation of JP 55-167024. 1980.
Chemical Engineers' Handbook, 5th ed. New York, McGraw-Hill, 1973. pp. 18-61. 1973.

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