Efficiency of Corrosion Inhibitors on Cathodic Protection System

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-8 Number-3                          
Year of Publication : 2014
Authors :  Tobinson Briggs ,  obioma M. Eseonu


Tobinson Briggs , Yobioma M. Eseonu."Efficiency of Corrosion Inhibitors on Cathodic Protection System", International Journal of Engineering Trends and Technology(IJETT), 8(3),113-126 February 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


This study is on experiment being carried out to determine the efficiency of in inhibitors on catholically protected medium carbon steel in sea water in Bonny and Ogbokoro in the Niger Delta region of Nigeria. The experiment was conducted using the total immersion technique in a non-flowing media containing sea water inhibited with potassium dichromate, sodium nitrate, ECIO21A, sarvor CK 368, and Kurizets 636. In the course of this research work, Cathodically protected and unprotected medium carbon steel were totally immersed in seawater containing the aforementioned inhibitors differently. Their weight loss, corrosion rate, pH value and corrosion potentials were determined at intervals of 72 hours, over 2016 hours the test lasted. The results obtained shows that inhibitor EC1021A has efficiency of 79.8%, other results are as follows: Kurizet S.636, 77%, savor CK368, 43%, potassium dichromate, 35% and sodium nitrate, 1.88%. It was concluded that EC1021A is the most efficient inhibitor, under a non-flow system.


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corrosion inhibitors, Cathodic protection, sea water, non-flow system