Andrzej Stankiewicz is Professor of Process Intensification and Scientific Director of the Delft Research Center for Sustainable Industrial Processes at Delft University of Technology, The Netherlands. With more than 30 years of industrial and academic research experience, he is author or co-author of ca. 100 publications on chemical reaction engineering, industrial catalysis and process intensification, and holds several patents in the field. He is Chairman of the Working Party on Process Intensification at the European Federation of Chemical Engineering and Chairman of the Executive Board of the European Process Intensification Centre (EUROPIC). He is also co-author and editor of the world's first book on Process Intensification: Re-Engineering the Chemical Processing Plant (Marcel Dekker, 2004) and Editor the journal Chemical Engineering and Processing: Process Intensification. Andrzej Stankiewicz received his M.Sc. degree in chemical engineering from Warsaw University of Technology and a Ph.D. degree from the Industrial Chemistry Research Institute in Warsaw. Tom van Gerven is Assistant Professor of Process Intensification at the University of Leuven, Katholieke Universiteit Leuven, Belgium. He is (co-)author of ca. 25 publications on process intensification, solid waste treatment and sustainable processing. After a 2-year postdoc position in the group of Andrzej Stankiewicz at Delft University of Technology, he is now establishing a research group in Leuven on the use of ultrasound, light and magnetic fields for efficient chemical processing. Recently he was appointed Secretary of the Working Party on Process Intensification at the European Federation of Chemical Engineering. He obtained his Ph.D degree in Chemical Engineering from the University of Leuven in 2005.