| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a frequency of carrying in and out work, by extending a regeneration cycle of an acidic gas absorbent, in an acidic gas removal device.SOLUTION: An acidic gas removal device 1 removes acidic gas by ventilating exhaust gas to an absorbent storage part 3 installed in an exhaust gas air duct 2, by introducing the exhaust gas including the acidic gas into the exhaust gas air duct 2. The acidic gas removal device is formed so that the absorbent storage part 3 is filled with an acidic gas absorbent 4 mainly composed of active charcoal, and is provided with alkali supply means 6 for supplying an alkali aqueous solution of hydroxide of alkaline metal or carbonate of alkaline metal or sulfite salt of alkaline metal to the acidic gas absorbent 4, and the alkali supply means 6 is composed of a first nozzle 8 for supplying the alkali aqueous solution to the acidic gas absorbent 4 and a first piping 7 for guiding the alkali aqueous solution to the first nozzle 8, and the first nozzle 8 is provided in the absorbent storage part 3, and thereby, the frequency of carrying in and out work can be reduced by extending the regeneration cycle of the acidic gas absorbent.</p> |
