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The right corrosion inhibitor helps increase TAN for an Indian refinery
Dec 14: A large refinery in India, operating multiple crude & vacuum unit complexes, wanted to systematically increase the TAN operating limits of their crude feed, as a way to provide greater flexibility in crude selection, lower overall cost of crude, and improve refinery margins
8A phosphate-ester based corrosion inhibitor and its synergistic blend of phosphate-ester and phosphonate salt were suggested as it had the lowest potential to foul the vacuum column packed beds.
8The results were that corrosion rates, in the highest risk loops, were controlled within acceptable limits.
8There was no measurable increase in the pressure drop in any of the vacuum column packed beds
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