| abstract |
The process serves for utilising the heat removed on further cooling of a pre-cooled SO2-containing flue gas stream before it enters a desulphurising stage at low temperature, by transferring the heat to an air stream, which is thereby preheated, further raising of the temperature of the preheated air stream with hot flue gas and separating the hot-air stream into two partial streams, of which one is used as air for combustion. <IMAGE> |