Soot Blower Lance Tube Corrosion In Recovery Boilers, 2004 11th International Symposium on Corrosion in the Pulp and Paper Industry

An investigation was conducted to determine the cause of the internal corrosion of a number of soot blowers lances installed in two recovery boilers. It was found that the corrosion was the result of flue gases entering the inside of the lance tubes and forming an acidic condensate that in turn rapidly attacked the material. Acidic condensate is formed from the condensation of (acidic) flue gases that contained high concentrations HCl and SO2. The problem was rectified by making improvements to the low pressure air system that ensures the continuous purging of the soot blower lances to keep the flue gases out. The experience highlights the importance of a properly functioning purge air system for soot blowers.

Author: Jameel, M.I., Schwade, H., Lovo, A.C., Tran, H., Oliveira, N.
Soot Blower Lance Tube Corrosion In Recovery Boilers, 2004 1
Soot Blower Lance Tube Corrosion In Recovery Boilers, 2004 11th International Symposium on Corrosion in the Pulp and Paper Industry
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