I would like to ask the experts here.
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There is a device that operates at a temperature of 90°C and a pressure of 0.8 MPa; the media used are concentrated slurry and carbon dioxide, with hydrogen sulfide being another substance produced. The maximum concentration of hydrogen sulfide can reach 30%. What type of steel should be used? Carbon steel or stainless steel?
It is necessary to clearly specify all the media before and after the reaction, so that others can make a judgment.
Barium sulfide (containing liquid water) reacts with carbon dioxide to produce barium carbonate and hydrogen sulfide; hydrogen sulfide accounts for 30% of the gases emitted, with the remainder being carbon dioxide
Between carbon steel and stainless steel, I would choose stainless steel
Can composite steel plates be used? Primary carbon steel clad stainless steel
According to Baidu, barium sulfide (containing liquid water) suffers from severe corrosion; it is necessary to consult a corrosion manual. Go and look up the corrosion manual by yourself.