FREMGANGSMAADE OG INDRETNING TIL GENOPVARMNING AF AFSVOVLEDE ROEGGASSER

摘要

Method and apparatus for reheating of desulphurised flue gases from a combustion process where an amount of air greater than necessary for the combustion is heated by the flue gases by means of one or more heat exchangers, and the excess amount of hot air is admixed with the cleaned and cooled flue gases. Device for working said method - having at least one heat exchanger 1 which at its flue gas side is upstream of the desulphurising plant 5, and a pipe-line 12 letting in a part of the air heated in the heat exchanger 1 into the cleaned flue gases at a point 11 behind the desulphurising plant 5.