Experimental study on carbon steel corrosion and its inhibition using Sodium Benzoate under different operating conditions
Joint Authors
Abd al-Jabbar, Marwah F.
Hasan, Basim O.
Abd al-Qadir, Huda Diya
Source
Iraqi Journal of Chemical and Petroleum Engineering
Issue
Vol. 12, Issue 3 (30 Sep. 2011), pp.11-24, 14 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2011-09-30
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Abstract AR
تم إجراء عدة تجارب على عملية التآكل و التي من خلالها تم استنتاج تأثير بعض العوامل العملية المؤثرة على معدل التآكل و فولتية التآكل للكاربون الفولاذي في المجرى المضطرب بغياب أو بوجود بنزوات الصوديوم كمانع تآكل و باستخدام تقنيات الكهروكيمياوية القطبية.
و هذه العوامل هي السرعة الدورانية، درجة الحرارة، و الزمن.
و تم مناقشة تأثير هذه العوامل على معدل التآكل و كفاءة المانع.
لقد وجد بأن معدل التآكل المتمثل بتيار التآكل المحدد يتناقص مع الزمن نتيجة لتكوين طبقة من نواتج التآكل و يزداد مع السرعة و درجة الحرارة.
إن فولتية التآكل تتجه نحو زيادة أكثر مع زيادة درجة الحرارة و السرعة بينما تتناقص بزيادة الزمن.
بنزوات الصوديوم تعطي كفاءة جيدة و كفاءتها تكون عالية للسطوح النظيفة و تتناقص مع الزمن في الظروف الساكنة و ظروف الجريان مع ملاحظة عدم وجود تأثير لدرجة الحرارة على كفاءة المانع في هذه الظروف.
Abstract EN
Corrosion experiments were carried out to investigate the effect of several operating parameters on the corrosion rate and corrosion potential of carbon steel in turbulent flow conditions in the absence and presence of sodium benzoate inhibitor using electrochemical polarization technique.
These parameters were rotational velocity (0-1.57 m / s), temperature (30oC–50oC), and time.
The effect of these parameters on the corrosion rate and inhibition efficiency were investigated and discussed.
It was found that the corrosion rate represented by limiting current increases considerably with increasing velocity and temperature and that it decreased with time due to the formation of corrosion product layer.
The corrosion potential shifted to more positive with increasing temperature and velocity while it shifted to more negative with time.
Sodium benzoate gave good inhibition efficiency for the whole investigated range of temperature and velocity.
Its efficiency was high on clean surfaces and decreased with time in stationary and flow conditions.
No noticeable effect of temperature on the inhibition efficiency was noticed.
American Psychological Association (APA)
Hasan, Basim O.& Abd al-Qadir, Huda Diya& Abd al-Jabbar, Marwah F.. 2011. Experimental study on carbon steel corrosion and its inhibition using Sodium Benzoate under different operating conditions. Iraqi Journal of Chemical and Petroleum Engineering،Vol. 12, no. 3, pp.11-24.
https://search.emarefa.net/detail/BIM-321229
Modern Language Association (MLA)
Hasan, Basim O.…[et al.]. Experimental study on carbon steel corrosion and its inhibition using Sodium Benzoate under different operating conditions. Iraqi Journal of Chemical and Petroleum Engineering Vol. 12, no. 3 (Sep. 2011), pp.11-24.
https://search.emarefa.net/detail/BIM-321229
American Medical Association (AMA)
Hasan, Basim O.& Abd al-Qadir, Huda Diya& Abd al-Jabbar, Marwah F.. Experimental study on carbon steel corrosion and its inhibition using Sodium Benzoate under different operating conditions. Iraqi Journal of Chemical and Petroleum Engineering. 2011. Vol. 12, no. 3, pp.11-24.
https://search.emarefa.net/detail/BIM-321229
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 23-24
Record ID
BIM-321229