Corrosion control in olefin production plants
AssigneeEquistar Chemicals, LP
InventorRobert J. Haynal
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Abstract
A method for reducing acid corrosion and products of acid corrosion in a thermal cracking plant, the acid corrosion products being compounds of iron, chromium, nickel, lead, cadmium, manganese, mercury, magnesium, calcium, sodium, copper, zinc, lead, molybdenum, and aluminum, the improvement comprising introducing ethylene diamine into at least one process stream of the plant.
Claims12
In a method for reducing at least one of acid corrosion and products of acid corrosion in a thermal cracking ethylene production plant wherein said corrosion products are compounds of at least one metal of the group consisting essentially of iron, chromium, nickel, lead, cadmium, manganese, mercury, magnesium, calcium, sodium, copper, zinc, palladium, molybdenum, and aluminum, the improvement comprising introducing into at least one process stream in an olefin processing unit ethylenediamine in an amount sufficient to reduce said acid corrosion and remove at least one said products of acid corrosion.
Dependencies are inferred from the claim text.