Evaluation of tetramethylammonium acetate as corrosion suppressor for flow assurance applications. (2021)

• Record Type: Journal Article
• Authors: Qasim, Ali; Saad Khan, Muhammad; Lal, Bhajan; Mohd. Shariff, Azmi; Che Ismail, Mokhtar
• Is Part Of: Materials today. Volume 47:Part 6(2021)
• Page Start: 1355
• Page End: 1358
• Publication Date: 2021
• Subjects: Corrosion -- Quaternary Ammonium Salt (QAS) -- Tetramethyl ammonium Acetate (TMAAc) -- Weight loss method; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.03.568
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: For flow assurance applications, various chemicals are used in the oil and gas industry in order to mitigate corrosion. Among corrosion suppressing compounds, quaternary ammonium salts (QASs) find an exceptional usage as these relatively long chain compounds adsorb onto the surface of the pipeline. The formation of protective layer by adsorbing on the surface prevents corrosion. In this work, tetramethylammonium acetate (TMAAc) which is QAS is evaluated as a corrosion controlling compound in saline environment using weight loss method. The weight loss experiments are performed with the solution concentrations of TMAAc at 0.01, 0.5, 1, 2, 5 and 10 wt%. Corrosion rate values are determined at these concentrations. It is observed that the corrosion with the increase in concentration of TMAAc, corrosion rate is also increased. Rate of metal corrosion varies from 0.068 mm/yr to 0.176 mm/yr in the range of 0.01–10 wt%. The minimum value of corrosion rate is found to be 0.068 mm/yr at the sample concentration of 100 ppm. It is concluded that at lower concentrations, TMAAc can find its application as a commercial corrosion inhibitor.