Shell Consol solution is highly corrosive
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The Consolf process uses organic amine solutions to remove sulfur dioxide gas. Organic amine-rich liquids are highly corrosive, causing pipeline corrosion and leakage. What good methods do people use to control corrosion when applying this process?
The pipeline material has been upgraded to 245 molybdenum sulfur; Karamay Petrochemical has achieved good results after the modifications
Should it be 254SMO?
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For the quenching system, a steel-lined plastic version can be used, or 254SMo can be chosen directly; for the absorption and regeneration system, 316L is sufficient
These process conditions are quite stringent, and only corrosion-resistant equipment can be used, such as steel lined with plastic or 254SMO specialty steel
The pH value of organic amines is 3-6； The corrosivity is acceptable. Pre-washing tower ph1-2 ； Highly corrosive. 316l is also used. The temperature inside the main tower is high ； High sulfuric acid concentration ； Material of 254Mo or higher must be used.
That’s absolutely correct; do you also use this process?