To provide a method of cheaply, efficiently, easily, and safely removing a SO3 component and sulfuric acid mist derived therefrom that are contained in a gas comprising a SO3 component, for example, a gas generated by burning fuel comprising sulfur in a boiler or the like and generate white smoke, blue smoke or the like.
The method of treating a gas generated by burning fuel in a boiler 1 and sent through a flue to an air preheater 2, a desulfurization device 4, and subsequently to a smokestack 5, includes decomposing sodium hydrogencarbonate powder of a mean particle diameter of not greater than 20 μm, of an angle of depose of not greater than 65°, and of a degree of dispersion of not lower than 10% using a gas medium heated up to 60°C or higher, and spraying the resulting material into a gas comprising SO2 in an amount of at least 500 volume ppm and further comprising a SO3 component, at least in one flue, to remove the SO3 component in the gas.
MORI YOICHI
HIRANO HACHIRO
MITSUBISHI HEAVY IND LTD
| JPH07299322A | 1995-11-14 | |||
| JPH0957150A | 1997-03-04 | |||
| JPH11104439A | 1999-04-20 | |||
| JPS5117191A | 1976-02-10 | |||
| JPH0558622A | 1993-03-09 |
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