A Comparative Study on Several Anti-Corrosion Materials for Power FGD System

Abstract

In the study organic-inorganic hybrid composite, epoxy modified silicone coating and vinyl ester flake mastic were comparatively used as several anti-corrosion materials that provided protection for flue gas desulfu-rization (FGD). The relationship between curing conversion rate of hybrid polymer and temperature was investigated by differential scanning calorimeter (DSC). The adhesion strength, coefficient of thermal expansion and flame retardant properties of three anti-corrosion materials were measured and analyzed. A corrosion test in 8% H<sub>2</sub>SO<sub>4</sub> and 5% HCl at temperature cycle of 40°C~ 160°C was applied to study corrosion resistance of several anti-corrosion materials. Gravimetric measurement and morphological observation of three materials before and after corrosion test were comparatively analyzed in the paper. The small weight change and good morphological structure of hybrid composite during corrosion test demonstrate that hybrid composite has better anti-corrosion properties than epoxy modified silicone coating and vinyl ester flake mastic

Anti-Corrosion Test on Basal Slope Protection Materials

“…Mass loss rate of a specimen 100% W W W =− × (1) where W 1 is the mass of the full-dry specimen before the experiment and W 2 is the mass of the full-dry specimen after the experiment. Tables 1-4 give the results obtained in the anti-corrosion test.…”

“…In order to study the corrosion resistance [1]- [7] of the basal slope protection materials, this paper conducts in-door anti-corrosion tests separately on the fence, the mixed stump and the geo-textile that have been coated with corrosionremover or without the application of corrosionremover.…”

Preferential dissolution behaviour of the austenite phase in Fe–27Cr–xC high chromium cast iron

“…It was considered that experimental solutions were simulated as a mixture of sulfuric and hydrochloric acids as representatives of a corrosive environment for FGD facilities. 12–14…”

Assessment of protective properties of rubber lining in absorbers of flue gas desulphurization systems

“…Therefore, the use of lining protections is very popular [7,8]. Various types of rubber lining are the most popular.…”