Corrosion control of carbon steel using inhibitor of banana peel extract in acid diluted solutions

2nd International Conference on Oleo and Petrochemical Engineering

Komalasari^1 ; Utami, S.P.^1 ; Fermi, M.I.^1 ; Aziz, Y.^1 ; Irianti, R.S.^1

Department of Chemical Engineering, Universitas Riau, Jl. HR Subrantas KM 12, 5 Sp, Panam Pekanbaru, Riau, Indonesia^1

关键词: Acid solutions;    Compound inhibitors;    Corrosion control;    Diluted solutions;    Inhibitor concentration;    Inhibitor efficiency;    Natural materials;    Organic inhibitors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/345/1/012030/pdf
DOI  :  10.1088/1757-899X/345/1/012030

来源: IOP

【 摘 要 】

Issues of corrosion happened in pipes, it was used as fluid transportation in the chemical industry. Corrosion cannot be preventing, however it could be controlled or blocked. Inhibitor addition is one of the method to control the corrosion inside the pipe. Corrosion inhibitors consisted of inorganic and organic compound inhibitors. Organic inhibitor is composed from synthetic and natural material. This study focused to evaluate the inhibition's efficiency from banana peel to carbon steel in different concentration of inhibitor and immersing time in acid solution variation. The research employed inhibitor concentration of 0 gram/liter, 2 gram/liter, 4 gram/liter and 6 gram/liter, immersed time of carbon steel for 2, 4, 6, 8 and 10 hours. It was immersed in chloride acid solution of 0.5 M and 1.5 M. Carbon Steel AISI 4041 was used as specimen steel. Results were analyzed using corrosion rate evaluation for each specimens and inhibitor efficiencies determination. It was found that the specimen without inhibitor yielded fast corrosion rate in long immersing time and high concentration of HCl. However, the specimens with inhibitor gave lowest corrosion rate which was 78.59% for 6 gram/litre and 10 hours in 0.5 M HCl.