Development of an effective method for internal pipeline corrosion control in the presence of CO2

Abstract

ABSTRACT

A Review of Recent Advances in the Inhibition of Sweet Corrosion

“…Although the use of imidazoline derivative compounds as CIs for steel in a CO 2 environment [3,4b,9a] has been well known for many years, a large number of research groups still reported on their use in the last decade, [38b,41,50,59–62,64,69,74c–e,75,80a,b,83,85,89,91–93,96,109,111,114,116a,118a,121b,123,128] as shown in Table S1 in Supplementary Material. Several authors also reported on the use of quaternary ammonium salts containing imidazoline, [35,46a,47,74b,106,129] acetate complexes based on imidazoline derivatives, [130] and tall oil fatty acid diethylenetriamine imidazoline (TOFA/DETA) [53–54] as CIs in a CO 2 environment. Liu et al [75] .…”

“…The steel samples in the above‐mentioned studies were usually immersed in either CO 2 ‐saturated NaCl solutions with different concentrations (i. e. 0.3–5.0 wt.% NaCl) [35,38b,41,47,50,54–55,59‐62,64,69,74d,89b,93,109a,111,118a,121b,123,128b,f,g] or CO 2 ‐saturated brine/simulated oilfield formation water [74b,c,85,89a,91–92,96,109b,114,116a,128e,129b] . However, other solutions were also employed.…”

“…A wide range of temperatures, varying from room temperature to 120 °C, were employed to test the corrosion inhibition effectiveness of imidazoline compounds in a CO 2 environment. A few studies also reported on the influence of temperature (in the 20–90 °C range) on the corrosion inhibition effectiveness of imidazoline compounds in a CO 2 environment [54,60,89a,128b,e] . The vast majority of these studies [54,128b,e] concluded that the corrosion inhibition effectiveness of the imidazoline compounds studied decreased with an increase in temperature.…”

The effect of mono ethylene glycol on the top of line corrosion rate of low carbon steel in acetic acid and elevated temperature environment

“…However, the inhibition mechanisms will contribute to the enhanced inhibition effect of the TOL corrosion rate. The decrease of organic acid also contribute to the decrease of corrosion rate [24], it has a correlation with the needs of MEG content that also decreases. A similar study investigated the phenomena of corrosion by acetic acid and carbon dioxide under dew condition at the top of horizontal pipeline [8].…”