Douglas Ruthven is Professor Emeritus at the University of Maine. He was educated at Cambridge University (M.A., PhD and ScD). His academic career has been divided between the University of New Brunswick, Canada (1966-1995) and the University of Maine (1995 -2013). He has published numerous research papers and three books in the general area of adsorption and adsorption processes and has received several notable awards including the ScD degree, the Max Planck Research Prize (jointly with Prof. Joerg Kaerger) and a Humboldt Senior Research Fellowship. He was elected a Fellow of the Royal Society of Canada in 1989.

Shamsuzzaman Farooq is a Professor in the Department of Chemical and Biomolecular Engineering at the National University of Singapore (NUS). His research and teaching interests are in design, development, modelling and optimization of separation processes. He specializes in adsorption science and its application in gas separation technology. His over 30 years of experience in these areas spans both laboratory and industrial scale studies. Besides publishing in premier Chemical Engineering journals and speaking at International Conferences, he is a co-author of the current edition of the book, Pressure Swing Adsorption. He was the Editor in Chief of Adsorption ? journal of the International Adsorption Society ? from 2017 to 2019.

Kent Knaebel is the president of Adsorption Research Inc., in Columbus, OH, USA. Having obtained his academic degrees from the University of Kentucky and the University of Delaware, he spent the early part of his career working for Eastman Chemical in Kingsport, TN, and then Ohio State University. Doctor Knaebel has authored over 40 scientific publications plus 16 patents. He is a Fellow of the International Adsorption Society, and he was the Editor in Chief of Adsorption ? journal of the International Adsorption Society ? from 1995 to 2010.

Arvind Rajendran is a Professor in the Department of Chemical and Materials Engineering at the University of Alberta. He obtained his PhD from ETH Zurich working on high-pressure adsorption and chromatography. He has published over 75 peer-reviewed articles on the topics of Pressure swing adsorption, Large-scale chromatography and adsorption fundamentals. He is an area editor (adorption processes) for Adsorption- The journal of the international adsorption society and is the associate editor for the Canadian Journal of Chemical Engineering.], both from 2016 till date.