September 2019
Special Focus: Refining Technology
Modified shed decks tackle crude tower fouling problems
Many tray designs have been complicated by the hunt for the “perfect distillation tray” design.
The Authors
Daryl W. Hanson is a Technology Advisor for Valero, focused on distillation, fractionation and separation issues. He is responsible for design, troubleshooting, operation and optimization issues at the company’s 14 refineries and many ethanol plants. His previous experience includes positions at Glitsch, Koch-Glitsch and Process Consulting Services. Mr. Hanson holds a BS degree in chemical engineering from Texas A&M University.
Jill Brown Burns is a Director of technology at Valero, responsible for troubleshooting, operations and design of the many fractionation columns and crude and vacuum distillation units at Valero’s 14 refineries. Her previous experience includes positions at Marathon Petroleum and Sulzer Chemtech. Ms. Burns holds a BS degree in chemical engineering from the University of Oklahoma.
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