Eco-friendly synthesis, biological activity and evaluation of some new pyridopyrimidinone derivatives as corrosion inhibitors for API 5L X52 carbon steel in 5% sulfamic acid medium

2018 ◽  
Vol 1171 ◽  
pp. 658-671 ◽  
Author(s):  
Y.M. Abdallah ◽  
K. Shalabi ◽  
Nesma M. Bayoumy
Keyword(s):  
Biological Activity ◽  
Carbon Steel ◽  
Acid Medium ◽  
Corrosion Inhibitors ◽  
Sulfamic Acid

Inhibition effect of monomeric/polymerized imidazole zwitterions as corrosion inhibitors for carbon steel in acid medium

2020 ◽  
Vol 312 ◽  
pp. 113436 ◽  
Author(s):  
Jinghui Wang ◽  
Dan Liu ◽  
Shuyun Cao ◽  
Shiguang Pan ◽  
Hengzhi Luo ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Acid Medium ◽  
Corrosion Inhibitors ◽  
Inhibition Effect

Evaluation of corrosion inhibitors in acid medium

2015 ◽  
Vol 62 (4) ◽  
pp. 241-245
Author(s):  
Fernando Benedicto Mainier ◽  
Raphaela de Melo Baêsso e Silva
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Acid Medium ◽  
Design Methodology ◽  
Corrosion Inhibitors ◽  
Experimental Conditions ◽  
Content Type ◽  
Steel Pipes ◽  
Kinetics Of

Purpose – The purpose of this paper is to evaluate the corrosion inhibitor performance in acid medium through the determination of Fe2+ ions present based on reaction kinetics of steel with the acid. The use of corrosion inhibitors has been an excellent technique for protecting carbon steel pipes acidizing operations in oil wells. The inhibitor forms a chemical barrier on the metal surface that prevents or reduces attack by the acidic media. Design/methodology/approach – The experimental study provides a methodology to evaluate the performance of corrosion inhibitors in an acid medium, preferentially of concentrated hydrochloric acid. The process consists essentially of total immersion coupons of carbon steel, with continuous stirring, controlled temperature and quantitative determinations of iron ions from the dissolution of steel. The additions of commercial corrosion inhibitor base of ethoxylated amines of high molecular weight in an acid medium showed excellent performance at a temperature ranging from 25 to 45°C. Findings – This paper presents the mechanisms of protection, performance graphs and calculations of the activation energies of the addition of corrosion inhibitors in an acidic medium. Originality/value – The originality of this essay is to evaluate and correlate the performance of corrosion inhibitors with the activation energy in experimental conditions.

Commercial aqueous additives as used eco-friendly corrosion inhibitors for carbon steel in natural seawater

2020 ◽  
Vol 65 (1) ◽  
pp. 77-82
Author(s):  
Simona CAPRARESCU ◽  
◽  
Violeta PURCAR ◽  
Cristina MODROGAN ◽  
◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitors ◽  
Natural Seawater
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