Bruce M. Vrana, P.E., is an adjunct professor of chemical and biomolecular engineering at the Univ. of Pennsylvania (Penn). He received a BS and MS in chemical engineering from Penn and an MBA from the Univ. of Houston. He brings the experience gained over 40 years at DuPont, most of it in process synthesis and technoeconomic evaluations, to the senior design sequence at Penn. He has coauthored several publications and is an inventor on five U.S. patents. He is a registered Professional Engineer in Delaware.