Facilitator:
Sergio Robledo, Unicat Catalyst Technologies

Speakers:
Adrian Azpilicueta, Nalco Water
Steve Mayo, Eurecat U.S. Incorporated
Montri Vichailak, Marathon Petroleum Corporation

This session will cover the sources, mechanisms, and mitigations of common inorganic poisons of hydroprocessing catalysts. First, we will cover the main types of poisons encountered in hydroprocessing units and their sources. Next the three main poisoning mechanisms will be reviewed along with the severity of poisoning and catalyst mitigations to extend cycle. After that we will consider mitigations upstream of the hydrotreater to extend cycle life. Finally, a refinery case study will be presented demonstrating a process of extending cycle length in a hydrotreater with feedstock poisons.