Infrared spectroscopy for quality control of corrosion inhibitors
UDC: 620.197.3
DOI: 10.33285/0207-2351-2022-11(647)-69-76
Authors:
RAKITIN ANTON R.
1,
BOZHENKOVA GALINA S.1,
KISELEV STANISLAV A.1,
STEVANOVIC JELENA2,
KILMAMATOV AZAT A.2
1 TomskNIPIneft, Tomsk, Russia
2 NIS-Naftagas, Novy Sad, Serbia
Keywords: corrosion inhibitors, quality control, infrared spectroscopy, imidazolines, Neonol
Annotation:
Quality control of oilfield chemicals in the field is an urgent task for the chemization services of production enterprises. A large sampling of products presented on the domestic market, the possibilities of IR-spectroscopy of attenuated total reflectance (ATR) for monitoring the chemical composition of corrosion inhibitors active base were demonstrated. Based on the measurement results, the characteristic absorption bands of the most common compounds are systematized: tall oil fatty acids, amides and imidazolines, dimethylalkylbenzylammonium quaternary salts, Neonol, saturated polyhydric alcohols, polyethylene glycol. The proposed approach is easy to implement and it allows controlling the nature and ratio of the active components of the active base from the stage of laboratory testing to industrial use, ensuring the stability of the inhibitor protective properties.
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