Preparation of efficient hydrochloric acid corrosion inhibitor from natural grease-Reference-Cited by-同舟云学术

Preparation of efficient hydrochloric acid corrosion inhibitor from natural grease

Published:2024-06-01 Issue:2 Volume:26 Page:77-85
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Luo Yi¹²,Xu Zhongying¹³,Cao Xuewen³,Wang Yefei³,Li Shanjian¹,Chen Gang²,Tang Ying¹²

Affiliation:

1. Engineering Research Center of Oil and Gas Field Chemistry , Universities of Shaanxi Provence, Xi’an Shiyou University , Xi’an , , China

2. Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields , Xi’an Shiyou University , Xi’an , , China

3. China University of Petroleum (Huadong) , Qingdao , , China

Abstract

Abstract To alleviate the metal corrosion problem caused by incomplete acid discharge during pickling or acidification, a corrosion inhibitor, long chain fatty hydrazides (LCFH), with a significant corrosion inhibition effect was synthesized from natural grease. The corrosion inhibition and adsorption properties of LCFH on carbon steel in 1 M HCl solution were studied by static sample weight loss test, electrochemical impedance spectroscopy, and potentiodynamic polarization curve. The results showed that LCFH exhibits excellent corrosion inhibition performance in HCl solution. The inhibition efficiency increases with the increase of inhibitor concentration. When the concentration of LCFH is 40 mg/L, the inhibition efficiency can reach 97.9%. The potentiodynamic polarization curve shows that LCFH is a corrosion inhibitor that mainly inhibits the cathodic reaction. The corrosion inhibitor is spontaneously adsorbed on the surface of low-carbon steel in physical form, which conforms to the Langmuir isothermal adsorption model.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/pjct-2024-0021

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