Imidazoline and its precursor, amide, are very effective inhibitor intermediates and are widely used in formulating the corrosion products for application in the oil and gas industries. Their high temperature corrosion inhibition performance was evaluated and compared. Our results show that imidazoline and amide offer poor to moderate high temperature/pressure (300 °F/3,000 psig) inhibition performance, respectively, with amide giving a better thermos stability. Yet, both give excellent, comparable inhibition performance at a moderate temperature of 150 °F. These chemistries can provide up to 90% effectiveness at the high temperature, if the inhibitor concentration is very high.

Subject
Inhibitor performance, Corrosion rate, Chloride ion concentration, Imidazolines, Corrosion products, Chemical inhibition, Inhibitor treatment, Inhibition efficiency, Weight loss, Amide, Corrosion inhibitors, Corrosion protection, High temperature
Keywords:
Corrosion Inhibitor, Inhibition, Imidazoline, Amide, High Temperature/Pressure, Performance Evaluation
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2000
Association for Materials Protection and Performance (AMPP)
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