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Cross-Linking Performance to Mechanism: Correlation of lining performance in flue gas desulfurization applications to cure mechanism

Picture for Cross-Linking Performance to Mechanism: Correlation of lining performance in flue gas desulfurization applications to cure mechanism
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Some of the toughest environments for protective coatings to withstand are seen in the power industry, particularly within the flue gas desulfurization (FGD) process. Temperatures within the different areas throughout the system may reach 350-450°F (177-232°C) and then be cooled to ambient temperatures upon shutdown of the unit. 

Product Number: 41212-703-SG
Author: Andrew Recker
Publication Date: 2012
Industries: Coatings , Coatings and Linings
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$20.00
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Some of the toughest environments for protective coatings to withstand are seen in the power industry, particularly within the flue gas desulfurization (FGD) process. Temperatures within the different areas throughout the system may reach 350-450°F (177-232°C) and then be cooled to ambient temperatures upon shutdown of the unit. The cooling causes oxidized sulphur to condense with the moisture forming sulphuric acid. This heating and cooling put tremendous stress on the lining as it shrinks and expands combined with post cure stresses. The lining also undergoes attack by sulphuric acid which can react with the lining, basically dissolving it from the substrate. In this environment, a lining’s cross-link density is critical to the survival in this harsh environment.

Some of the toughest environments for protective coatings to withstand are seen in the power industry, particularly within the flue gas desulfurization (FGD) process. Temperatures within the different areas throughout the system may reach 350-450°F (177-232°C) and then be cooled to ambient temperatures upon shutdown of the unit. The cooling causes oxidized sulphur to condense with the moisture forming sulphuric acid. This heating and cooling put tremendous stress on the lining as it shrinks and expands combined with post cure stresses. The lining also undergoes attack by sulphuric acid which can react with the lining, basically dissolving it from the substrate. In this environment, a lining’s cross-link density is critical to the survival in this harsh environment.

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