May 16, 2017 - David Comer, Technical Manager Dorf Ketal Chemicals is presenting TANSCIENT at the June COQA meeting in St. Louis. TANSCIENT is new corrosion inhibition chemistry which increases refining flexibility and profitability in the use of high TAN crudes.

Historically, refiners have preferred to use metallurgy as the primary strategy to increase TAN limits. The use of phosphorus based inhibitors is a common chemical corrosion inhibition strategy; however, some users have experienced phosphate fouling in downstream hydro-processing operations attributed to these inhibitors and have limited the amount of allowable phosphorus.

An improved understanding of the corrosion inhibitor chemistry has led to the design of TANSCIENT, new chemistry that controls corrosion with reduced fouling. It is a polymeric phosphate triester with a synthesized alcohol which increases thermal stability and oil solubility. This chemistry innovation combined with improved monitoring technologies is changing refiners’ perspectives on TAN management and increasing refiner flexibility in the use of high TAN crudes to increase profitability.

March 24, 2017 - Desalter chemistry and High Temperature Corrosion Inhibitor chemistry are key factors to increase the profitability and reliability of adding High Acid Crudes (HAC) to your crude slate. David Comer, Technology Manager at Dorf Ketal Chemical will be discussing at AIChE-Refining the performance issues which need to be addressed when considering use of HAC. David’s presentation on Wednesday, March 29th will outline the key performance attributes required in designing a desalting and corrosion inhibition program and how Dorf Ketal’s Reactive Adjunct Desalter chemistry and TANSCIENT™ provide the best available solutions for refiners to meet those challenges.

March 17, 2017 – James Noland of Dorf Ketal will present "Work Life Balance - Revisiting the Relationship between Desalting Efficiency and Overhead Corrosion Control". James will explain how a new category of desalter chemistry reduces crude unit OH corrosion risk by improving desalter performance and increasing crude flexibility.  

Dorf Ketal’s new reactive adjunct desalter chemistry is based on safe and easy-to-handle aldehyde chemistry. Aldehydes are known to react with amines, ammonia, metals, and H2S in the crude, forming products of reaction that are easier to remove from the crude. This new category of desalter chemistry improves desalter performance with:

  • Faster emulsion resolution, Better salt removal, Improved control of oil in brine  
  • No acid feed, No loss of control of overhead salt points
  • No pH shock or bug upsets at waste treatment

Join us at CORROSION 2017 on Monday, March 27th in the Refining TEG 205X session. You can learn more by visiting us at and use Contact Us to start a conversation.