EVALUATION OF THE USE OF MANGO PEEL, BANANA PEEL AND ALLIGATOR PEPPER POD EXTRACT AS CORROSION INHIBITOR ON CARBON STEEL IN ACIDIC MEDIUM.

ABSTRACT

This work investigates the use of extract of alligator pepper pod, mango peel and banana peel as inhibitors to carbon steel corrosion in an acidic industrial environment (oil refinery). Corrosion weight loss method was adopted on the carbon steel coupons to evaluate inhibition efficiency in the presence of these plant extracts. The corrosion inhibitor was extracted with the aid of Soxhlet apparatus.

Corrosion rate (CR), Inhibitor Efficiency (IE) and Weight loss (∆W) were studied from gravimetric measurement of carbon steel coupons immersed in 1.5M HCl in the presence and absence of different concentrations (2.5ml,7.5ml,12.5ml,17.5ml,22.5ml respectively) of the inhibitor.