Rahmat Sotudeh-Gharebagh is a Professor of Chemical Engineering at the University of Tehran. His research interests are in the fields of multiphase reactors, process modelling and optimization, and chemical engineering education. He holds a B.Eng. degree in chemical engineering from Sharif University of Technology, Tehran, Iran, plus a M.Sc in Process modeling and Simulation, and Ph.D. in fluidization from Ecole Polytechnique de Montreal, Canada.