Open AccessDNA Inhibition of Hydrogen Ion-Induced Corrosion of Mild Steel Used for Pipelines in Oil and Gas Industries
Author(s) -
Oluranti Agboola,
Toluwani Adedoyin,
O.S.I. Fayomi,
Ayoola Ayodeji,
Samuel Eshorame Sanni,
Augustine O. Ayeni,
A. P. I. Popoola,
Rotimi Sadiku,
Peter Adeniyi Alaba,
I. G. Akande,
Emeka Emmanuel Okoro
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.22686
Subject(s) - corrosion , chemistry , piping , metal , metallurgy , adsorption , chlorine , corrosion inhibitor , electrochemistry , nuclear chemistry , chemical engineering , materials science , environmental engineering , electrode , organic chemistry , environmental science , engineering
Corrosion of mild steel via chemical reaction in a corrosive environment is a problematic occurrencethat is very common in oil and gas industries. Corrosion constitutes a huge part of the total costs in theproduction of oil and gas. Corrosion inhibitors have found interest in the scientific domain becausethey are mainly understood by their chemical complexes and formulations. Their utilization in smallamount on metal surface used in oil and gas industries can help shield the metal from corrosion devoidof any significant alteration in the concentration of the corrosive media in the environment. An effortwas made to study the possibility of using calf thymus gland DNA (CTGDNA) inhibitor in chlorineinduced mild steel for possible usage in piping in oil and gas industry. The SEM micrograph showsthat the adsorption of the CTGDNA biomacromolecules coat on the mild steel surfaces functions as aprotection against HCl corrosive solution. Electrochemical study and weight loss analysis showedthat the inhibitor efficiency (70.48 and 72%, respectively) of the tested DNA (CTGDNA) in HCl acidiccorrosion environment for the mild steel was high at 1.5 M of HCl. The inhibitor efficiency decreasedwith increasing HCl concentrations. The open circuit potential (OPC) revealed that the mild steels gotcorroded until the end of the immersion. The intensities of XRD peak substantiate the existence ofcorrosion products of FeCl2.