Monitor and minimize corrosion in high-TAN crude processing
In addition to inhibitor dosing, intensive corrosion monitoring and analytical tests play a major role in equipment and piping health monitoring and in analyzing stream properties online.
High-acid crude (HAC) oils, also called high-total acid number (TAN) crudes, are oils where TAN [expressed in terms of milligrams of potassium hydroxide per gram (mg KOH/g)] is more than 0.5. Acidity is mainly due to the presence of naphthenic acids. These crudes trade at discounts of about $3/bbl to $10/bbl to conventional crudes; therefore, processing these crudes improves refinery bottom lines. However, processing high-TAN crudes is also challenging for refineries, especially those not designed to handle naphthenic crudes.
To continue reading please, log in to hydrocarbonprocessing.com.
Subscribe now for premium access and unlimited access to the site, including archived articles and the process handbooks. Start a free trial to gain access to articles from the current issue of Hydrocarbon Processing.
Already have an account?
Subscribe today and gain unlimited and immediate access to the site. Plus, you'll receive the next 12 issues of the magazine in your choice of print or digital format. Start your subscription today.
Start a free trial and gain immediate access to the current issue of the magazine plus additional, select content.
30 Day Trial