Coke Quenching Plenum Equipment Corrosion and Its Dependents on the Quality of the Biochemically Treated Water of the Coke-Chemical Production
Date
2022-03-16
Journal Title
Journal ISSN
Volume Title
Publisher
Видавництво Львівської політехніки
Lviv Politechnic Publishing House
Lviv Politechnic Publishing House
Abstract
Досліджені процеси корозії сталей у біохімічно очищених водах установок гасіння коксу. Проведено гравіметричні дослідження зразків сталей за 373 і 773 K, що дало змогу встановити, що при нагріванні сталей Ст.3 і 12Х1МФ з подальшим охолодженням у воді спостерігається різний характер їх корозійного руйнування. Описано типи корозії, які виникають при контакті вуглецевих і легованих сталей з біохімічно очищеними водами коксохімічних підприємств, що були оброблені гідроксидом натрію. Показано, що результатом корозійного руйнування сталей у всіх досліджених середовищах є утворення плівок гідратованих оксидів заліза з різним характером адгезії до поверхні зразків. Доведено, що обробка води приводить до деякого зниження величин масового і глибинного показників корозії для Ст.3 і 12Х1МФ, однак не дає істотного ефекту при постійному контакті сталі з гарячою водою.
Steel corrosion processes that occur due to the effects of the biochemically treated water in coke quenching plenums have been studied. Model investigations into the processes of the corrosion failure of carbon St. 3 steel and alloyed 18X1MF steel were carried out to study the behavior of the metal exposed to the action of the primary but treated water used for the coke quenching after the metal is heated to 373 K and 773 K. Different types of the corrosion that results from the contact of the carbon steel and alloy steel with the sodium hydroxide biochemically treated water of the coke-chemical production have been described. It was shown that the corrosion failure of the steels results from the formation of the films of hydrated iron oxides that appear in all the test media and these films show different behavior of adhesion to specimen surfaces. It was proved that the water treatment results in a certain decrease of the values of the mass and in-depth corrosion factors for St.3 and 12X1MF steels, however it fails to produce an essential effect when the steel is in constant touch with hot water.
Steel corrosion processes that occur due to the effects of the biochemically treated water in coke quenching plenums have been studied. Model investigations into the processes of the corrosion failure of carbon St. 3 steel and alloyed 18X1MF steel were carried out to study the behavior of the metal exposed to the action of the primary but treated water used for the coke quenching after the metal is heated to 373 K and 773 K. Different types of the corrosion that results from the contact of the carbon steel and alloy steel with the sodium hydroxide biochemically treated water of the coke-chemical production have been described. It was shown that the corrosion failure of the steels results from the formation of the films of hydrated iron oxides that appear in all the test media and these films show different behavior of adhesion to specimen surfaces. It was proved that the water treatment results in a certain decrease of the values of the mass and in-depth corrosion factors for St.3 and 12X1MF steels, however it fails to produce an essential effect when the steel is in constant touch with hot water.
Description
Keywords
корозія, гасіння коксу, оксид заліза, вуглецева сталь, гравіметрія, поляризаційна залежність, Corrosion, Coke Quenching, Iron Oxide, Carbon Steel, Gravimetry, Polarization Dependence
Citation
Coke Quenching Plenum Equipment Corrosion and Its Dependents on the Quality of the Biochemically Treated Water of the Coke-Chemical Production / Leonid Bannikov, Denis Miroshnichenko, Oleksii Pylypenko, Serhiy Pyshyev, Oleh Fedevych, Valeriy Meshchanin // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2022. — Vol 16. — No 2. — P. 328–336.