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 with 30 years of experience in these areas spanning both academic and industrial projects including pilot plant studies. He has been involved with several energy related externally funded (both Singapore and overseas agencies) projects both as PI and co-PI. Besides publishing in premier Chemical Engineering journals and speaking at International Conferences, he is a co-author of the book, Pressure Swing Adsorption. He was the Editor in Chief of Adsorption – journal of the International Adsorption Society from 2017 to 2019. He is a registered Professional Engineer in Singapore. He has served on the Faculty of Engineering (FoE) Promotion & Tenure (P&T) Committee and the University P&T Committee, FoE Teaching Excellence Committee, University Teaching Excellence Committee and University Committee on Educational Policy. He also has several teaching awards to his credit and completed a 9-year term as a Fellow of the NUS Teaching Academy.