Which substances in the entire gasification system cause the most corrosion to equipment and pipelines?
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Which substances in the entire gasification system cause the most corrosion to equipment and pipelines? Do S and C only affect the latter stages? Will it have no impact on the equipment and pipelines?
H2S, NH3, etc. cause corrosion; H2 corrosion, etc
At high temperatures, oxygen, hydrogen, and hydrogen sulfide in gray water – theoretically, oxygen is the most harmful, and that’s why deoxidizers are used!
H2S, CO2, SOx, NOx, CON, HCl, NH3, H+, H2, O2, and so on. But in many cases, the presence of water is required. This explains why many syngas pipelines need to be insulated with steam or electricity, in order to prevent the steam in the syngas from condensing. Most of those mentioned above fall under acid corrosion. Another type is alkali corrosion. Alkaline media also have a corrosive effect on certain materials.
The corrosion caused by NH3CL is also severe; however, its corrosion on the combustion chamber is minimal due to the refractory material on the surface of the coils.