Protective Properties and Spectral Analysis of Nitrogen- and Oxygen-Containing Corrosion Inhibitors for Oil Equipment

Abstract

The protective properties of six corrosion inhibitors based on imidazolines, amides, amines and esters have been determined using gravimetric and potentiometric methods. The effect of inhibitor solvent on the protective properties has been examined. The dependence of inhibitor protective effect upon the content of nitrogen and functional groups has been determined. The most effective inhibitors have been chosen and their IR-spectra have been shown.

Production of Corrosion Inhibitors for Oil Refining Equipment Using Natural Components

“…Investigation of inhibition effect was carried out by a gravimetric method, developed by Gajek et al [5]. Quantitative evaluation of the inhibitor effect (at a certain concentration) on the corrosion rate is characterized by a protective effect Z:…”

“…A jet fuel-water system with a ratio of 1:2 (v/v) was used as a simulated corrosive medium. The water phase with density of 1.12 g/cm 3 contains magnesium chloride, calcium and sodium [5]. This system simulates stratal water of oil producing enterprises or corrosive medium formed in water tanks after electrodehydrators.…”

“…At present, a large number of corrosion inhibitors are known for the metals protection. Most of them are organic compounds of various classes that contain heteroatoms: nitrogen, sulfur, oxygen, phosphorus, silicon [5][6][7]. The use of natural materials as alternative corrosion inhibitors, plant raw materials in particular, is a promising direction in this area.…”

Synthesis and structures of divalent Co, Ni, Zn and Cd complexes of mixed dichalcogen and dipnictogen ligands with corrosion inhibition properties: experimental and computational studies

“…[1][2][3] Mild steel is widely used in the petroleum industry as transport pipes for oil in petroleum production and rening, chemical processing industries, engineering materials in transportation, pipeline industries, mining and marine applications, nuclear power plants, construction and metal processing equipment. 4,5 Mild steel is, however, susceptible to corrosion, especially in acidic conditions and can readily be exposed to acid during acid cleaning, acid pickling and acid descaling, which are famous industrial procedures. [6][7][8][9][10] The use of corrosion inhibitors in different media has become an efficient and common way of protecting metallic surfaces from corrosion [11][12][13] because it is easy to apply and relatively inexpensive.…”

Study on Rheological Properties of Extra-Heavy Crude Oil from Fields of Ukraine

“…Taking into account the latter fact, such oils are extremely difficult to dehydrate [5]. The oils can also corrode the equipment, which in turn will result in the emergency shutdown of the entire refinery [6,7].…”