Alkilde, O. F.
Haldor Topsoe, Copenhagen, Denmark
Ole Frej Alkilde holds an MSc degree in chemical engineering from the Technical University of Denmark. He graduated in 1996 and has since been employed with Haldor Topsoe. He started as a Catalyst Technical Service Engineer performing start-ups, catalyst evaluations and troubleshooting. After 4 yr, he moved to the R&D division, where he worked 6 yr as a Catalyst Research Engineer on heavy oil upgrading and hydrocracking developments. Since 2006, he has worked with refinery technology, and now he holds a position as Technology Manager for hydroprocessing technology.
A diesel hydrotreater (DHT) is a critical unit within an oil refinery. A DHT processes the diesel range fractions obtained from different units of the refinery—such as from the crude distillation unit and the delayed coker unit—to adhere to diesel fuel market specifications.