Holder, D.

Drey Holder is a Senior Technical Service Manager and has been providing FCC technical support and training to refiners across North America for W. R. Grace & Co. for five years. Prior to working with Grace, he spent 12 yr at a large U.S. Gulf Coast refinery working in multiple roles that included Process Engineer, Operations Supervisor, Logistics Planner, Economics Analyst, Economics Supervisor and FCC Engineering Supervisor. He earned a degree in chemical engineering from Louisiana Tech University and has 20 yr of refining and chemical industry experience.