| 摘要 |
<p>In a method and an apparatus for cleaning a process gas, such as flue gas, of gaseous pollutants, such as sulphur dioxide, the gas is contacted in a space (5) with a particulate absorbent, such as lime, which is reactive with said gaseous pollutants, for conversion of said pollutants into separable, particulate pollutants. First the particles of the absorbent are dispersed by means of a means (20) in a carrier gas, such as air, said means communicating with at least one Venturi device (6) positioned in said space (5) and having a convergent inlet portion, at least one intake opening arranged downstream of the inlet portion and an outlet portion. Then the carrier gas and the particles dispersed therein are accelerated in said inlet portion and are at high velocity by means of said intake opening contacted with a pressurised flow of liquid, such as water, which is finely divided on the surface of said particles, before the particles are supplied to the process gas by means of said outlet portion.</p> |
