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Effect of Temperature and Acid Concentration on Rhizophora mucronata Tannin as a Corrosion Inhibitor

Agi, A. and Junin, R. and Zakariah, M. I. and Bukkapattanam, T. B. (2018) Effect of Temperature and Acid Concentration on Rhizophora mucronata Tannin as a Corrosion Inhibitor. Journal of Bio- and Tribo-Corrosion, 4 (1). ISSN 2198-4220

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Official URL: http://dx.doi.org/10.1007/s40735-017-0121-0

Abstract

The effect of temperature and acid concentration on a newly formulated tannin as a corrosion inhibitor for carbon steel in oil and gas facilities was investigated. Corrosion rate of carbon steel in HCl acid solutions (0, 5, 10, 15, 20, 25 and 30%) by Rhizophora mucronata tannin (RMT) was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–70 °C. At 20% optimum concentration of acid, the FTIR result showed the presence of hydroxyl group, aromatic group, esters and the substituted benzene group, indicating the purity of the tannin. The increase in HCl acid concentration and temperature increased the corrosion rate, but the rate of corrosion was mild with RMT. Therefore, the use of RMT as a cost-effective and environmental-friendly corrosion-inhibiting agent for carbon steel is herein proposed.

Item Type:Article
Uncontrolled Keywords:Oil and gas, Rhizophora mucronata, Tannin
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:81808
Deposited By: Narimah Nawil
Deposited On:29 Sep 2019 16:13
Last Modified:29 Sep 2019 16:13

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