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Fighting Corrosion in the Petrol Industry

16 October 2014

The annual cost of corrosion is staggering. A new analytical method for characterization of imidazoline formulations can boost the development of new anti-corrosive agents.


A new SPE-LC-MS method for characterization of imidazoline corrosion inhibitors, developed at Biotage in conjunction with collaborators at MeadWestVaco, supplements existing bulk testing and wet chemistry methods like titration and IR spectroscopy. This method will have significant impact in the formulation of new corrosion inhibitors for oilfield applications, as well as the quality control of finished products in manufacturing.

Structures of 2-, 3-, and 4-imidazolines.

Corrosion costs the petroleum industry an estimated $1.3 billion annually in non-productive time, materials and labor. Imidazolines prepared from fatty acids and amines are a widely used class of chemical corrosion inhibitors, due to their excellent performance and ease of handling. However, commercial imidazolines are actually mixtures of several different chemical compounds, and the relative proportions of these species can have a large impact on both corrosion inhibition and product physical properties. The absence of gold standard analytical methods to characterize the active ingredients in imidazoline formulations has limited the understanding of the chemistry of these materials.