Hanson, D.

Valero Energy Corp., San Antonio, Texas

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.

FCC collector tray leaks impact column operation

Hanson, D., Brown Burns, J., Teders, M., Valero Energy Corp.

In the collective experience of the authors, one of the most troublesome pieces of refinery fractionation equipment is the collector tray.

Targeted liquid injection improves shed deck performance

Riley, C., Wicklow, C., Valero Benicia Refinery; Hanson, D., Brown Burns, J., Valero Energy Corp.

This case study shows how the installation of an unique piping and lance design achieved targeted liquid injection, quenched vapor hot zones and reduced resid entrainment into the heavy coker gasoil product.