High-temperature corrosion of sulfur dioxide
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The operating temperature of the turbine is in the range of 700–1150°C, and the working fluid is supercritical carbon dioxide containing a small amount of sulfur dioxide. What is the degree of corrosion this poses to the turbine blades and the subsequent piping?
The critical temperature of CO2 is 31.26°C, and its critical pressure is 72.9 atm. I’d like to know what conditions prevail at 700–1200°C in the original post; please provide some information*
In other words, in a supercritical carbon dioxide cycle, if sulfur dioxide is introduced, what is its corrosivity at high temperatures? Does it increase or decrease the corrosion compared to conventional power plants? There is a claim that above 700°C, the corrosivity of sulfur dioxide decreases; I wonder if this conclusion holds true?