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
  10.14445/22315381/IJETT-V8P222

MLA 

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

Abstract

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.

References

Akhigbemidu, C. O. (2005): “Prediction of Corrosion Induced failures in Oil and Gas Pipeline”. M. Eng. Thesis.
Amula, E. and Okpala, A. N. (2005): “Effect of Corrosion Inhibitors on the Corrosion Rate of Low Carbon Steel in Oil and Gas Environment”. NICA, Volume 3. (December Edition 2005)
Eugene, A. A. and Theodore, B. III (1997): Marks Standard Handbook for Mechanical Engineers. Tenth Edition, McGraw-Hill.
Ewald, H. and Henkhaus, R. (1992): Corrosion Science. “An Experimental Approach”. Institute of Corrosion, Ellis Horwood Limited
http://www.corrosion-doctor.org/cp/introduction.htm
http://www.engineeing-expert.com/cathodic.html
Kenneth, R. T. and Charmberlain, J. (1998): Corrosion for Science and Engineering. Second Edition. Addison Wesley Longman Limited
Mars G. F. (1986): Corrosion Engineering. 3rd Edition.
Marshall, E. P. and Peattie E .G (1999): Pipe Line Corrosion and Cathodic Protection. “A Practical Manual for Corrosion Engineers” Third Edition. Gulf Professional Publishing Mc Graw Hill.
National Association Of Corrosion Engineers (2000), 89, 79. Corrosion Control In Petroleum Production.
Okpala, A. N. and Uhunmwangho R. (2005): “Corrosion Behaviour of Cathodiclly protected steels in brackish water and simulated seawater”. NICA, Vol. 3 (December Edition).
Onuchukwu, A. I. (2005): “The trends of chemical–induced Corrosion Failure,”. NICA, VOL 2 (January Edition).
Robert, B. (2005): ASTM International Handbook on corrosion Test and Standard. 2nd Edition
The Holy Bible: Genesis Chapter 3 Verse 9. King James Version.
Umezurike, C. (2001): Engineering Material Design: Properties Selection and Uses, 1st Edition, PAM Unique Publishers, Port Harcourt.

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