| 摘要 |
A method for operating a heat-producing plant having a chamber for burning chlorine-containing fuels and a channel connected with the chamber, in which a plurality of consecutive heat-transferring devices are located, which can heated by hot flue gas which flows through the channel in the direction from the combustion chamber towards an outlet. The flue gas is conditioned by addition of a sulphur-containing additive injected into the flue gas downstream a combustion zone and upstream that heat-transferring device being the first to be hit by the flue gas. Alkaline chlorides are sulphated thereby reducing chlorine-induced corrosion of the heat-transferring devices. As additive ammonium sulphate ((NH4)2SO4), ammonium bisulphate ((NH4)HSO4), ferrous sulphate (FeSO4), or sulphuric acid (H2SO4), is used, in order to form reactive sulphur trioxide (SO3). |
