Corrosion protection for desulfurization towers
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On the selection of wet flue gas desulfurization materials
Carbon steel + 4 mm corrosion margin or local aluminum spraying for corrosion protection, stainless steel lining
Polymer fiber coating technology is at the forefront in terms of anti-corrosion techniques for desulfurization towers, flues, and chimneys, and can be used to prevent corrosion in such structures.
The anti-corrosion measures for desulfurization towers are determined by the desulfurization method; for the calcium-based method, 316L is generally sufficient. The ammonia method mainly uses rubber-lined carbon steel or fiberglass reinforced with modified materials. The sodium-alkali method is similar to the ammonia method.
Generally, to save costs, the tower body is made of carbon steel; glass flake or other anti-corrosion materials are applied on its interior, while the spray pipes are made of fiberglass-reinforced plastic