Shamsuzzaman Farooq is a Professor of Chemical and Biomolecular Engineering at the National University of Singapore with over 30 years of experience in adsorption science and gas separation technology spanning laboratory and industrial scales. He served as Editor in Chief of Adsorption from 2017 to 2019. Mark W. Ackley is a retired Corporate Fellow at Praxair with 25 years of industrial experience in process, modeling, materials, and equipment R&D applied to pressure swing adsorption. He is the inventor in 38 US patents and has served as Director of the International Adsorption Society. Kent S. Knaebel is President of Adsorption Research Inc. in Columbus, Ohio. A Fellow of the International Adsorption Society, he has authored over 40 scientific publications and 16 patents and served as Editor in Chief of Adsorption from 1995 to 2010. Douglas M. Ruthven is Professor Emeritus at the University of Maine, educated at Cambridge University with MA, PhD, and ScD degrees. A Fellow of the Royal Society of Canada, he received the Max Planck Research Prize and a Humboldt Senior Research Fellowship.

• 1 Introduction2 Fundamentals of Adsorption3 PSA Cycles: Basic Principles4 Equilibrium Theory of PSA5 Dynamic Modelling & Optimization of a PSA System6 PSA Processes7 Extension of the PSA ConceptAppendices

Shamsuzzaman Farooq is a Professor of Chemical and Biomolecular Engineering at the National University of Singapore with over 30 years of experience in adsorption science and gas separation technology spanning laboratory and industrial scales. He served as Editor in Chief of Adsorption from 2017 to 2019. Mark W. Ackley is a retired Corporate Fellow at Praxair with 25 years of industrial experience in process, modeling, materials, and equipment R&D applied to pressure swing adsorption. He is the inventor in 38 US patents and has served as Director of the International Adsorption Society. Kent S. Knaebel is President of Adsorption Research Inc. in Columbus, Ohio. A Fellow of the International Adsorption Society, he has authored over 40 scientific publications and 16 patents and served as Editor in Chief of Adsorption from 1995 to 2010. Douglas M. Ruthven is Professor Emeritus at the University of Maine, educated at Cambridge University with MA, PhD, and ScD degrees. A Fellow of the Royal Society of Canada, he received the Max Planck Research Prize and a Humboldt Senior Research Fellowship.

• 1 Introduction2 Fundamentals of Adsorption3 PSA Cycles: Basic Principles4 Equilibrium Theory of PSA5 Dynamic Modelling & Optimization of a PSA System6 PSA Processes7 Extension of the PSA ConceptAppendices

Shamsuzzaman Farooq is a Professor of Chemical and Biomolecular Engineering at the National University of Singapore with over 30 years of experience in adsorption science and gas separation technology spanning laboratory and industrial scales. He served as Editor in Chief of Adsorption from 2017 to 2019. Mark W. Ackley is a retired Corporate Fellow at Praxair with 25 years of industrial experience in process, modeling, materials, and equipment R&D applied to pressure swing adsorption. He is the inventor in 38 US patents and has served as Director of the International Adsorption Society. Kent S. Knaebel is President of Adsorption Research Inc. in Columbus, Ohio. A Fellow of the International Adsorption Society, he has authored over 40 scientific publications and 16 patents and served as Editor in Chief of Adsorption from 1995 to 2010. Douglas M. Ruthven is Professor Emeritus at the University of Maine, educated at Cambridge University with MA, PhD, and ScD degrees. A Fellow of the Royal Society of Canada, he received the Max Planck Research Prize and a Humboldt Senior Research Fellowship.

• 1 Introduction2 Fundamentals of Adsorption3 PSA Cycles: Basic Principles4 Equilibrium Theory of PSA5 Dynamic Modelling & Optimization of a PSA System6 PSA Processes7 Extension of the PSA ConceptAppendices