Newly imine-azo dicationic amphiphilic for corrosion and sulfate-reducing bacteria inhibition in petroleum processes: Laboratory and theoretical studies

Oil and gas process faces a large dilemma during the acidizing job. So, dicationic surfactant namely; 1-dodecyl-3-((E)-(4-(((E)-(1-dodecylpyridin-1-ium-4-yl) methylene)amino)-2-hydroxyphenyl) diazenyl)pyridin-1-iumdibromide (SDCAC) was synthesized. Spectroscopic and CHN elemental analysis studies confirmed the SDCAC structure. SDCAC has Surface active properties. The anticorrosion performance of SDCAC for carbon steel (CS) in 1.0 M HCl has been validated gravimetrically and electrochemically accompanied with surface analysis studies. SDCAC enhances the resistance of CS corrosion by 98%. Tafel data classify SDCAC as a hybrid anticorrosive substance. Adsorption of SDCAC is more fitted to the Langmuir adsorption isotherm model. Theoretical indices of SDCAC affirm its tendency toward adsorption. The activity of SDCAC against sulfate reducing bacteria (SRB) has been examined and promising outcomes have been achieved. According to the findings of this investigation, the SDCAC can reduce SRB growth from 10(7) to 10(2) cell/ml.

Automated summary

The dicationic surfactant SDCAC showed promising results in enhancing corrosion resistance for carbon steel during acidizing, reducing the growth of sulfate reducing bacteria from 10(7) to 10(2) cell/ml. Its adsorption properties and anticorrosive characteristics classify SDCAC as a hybrid anticorrosive substance.