Chuah Chong Yang - Singapore

Chong Yang received his BSc degree in Chemical and Biomolecular Engineering from Nanyang Technological University (NTU) in Singapore in 2015 as first class honours. He is one of the recipients of the Nanyang President's Graduate Scholarship (NPGS), which is a prestigious and competitive scholarship scheme that encourages final year students to kick-start their research career by pursuing a PhD in NTU. He recently completed his PhD study in the School of Chemical and Biomedical Engineering under the supervision of Professor Bae Tae-Hyun. Chong Yang currently works in the Singapore Membrane Technology Centre (SMTC) as research assistant in Professor Wang Rong's research group. His research focus is mainly on the development and synthesis of nanoporous absorbents and polymer-based composite membranes for gas separation process.

Chong Yang's enthusiasm in teaching has been demonstrated through his assignment as teaching assistant throughout his PhD studies. He has been involved in teaching and supervising core courses in chemical engineering (Material and Energy Balance, Chemical Reaction Engineering), by providing supplementary slides, brief overview and tutorial sessions so that students are able to comprehend the contents learned during the lecture.

Potential of mixed-matrix membranes for O2/N2 separation process

Traditional fuel combustion which uses air (O2/N2) as the oxidant, suffers poor energy efficiency due to the presence of N2. Thus, to increase the O2 content in the feed, O2/N2 separation using membranes has been considered as an attractive alternative compared to conventional cryogenic distillation. Nevertheless, polymeric membranes and nanoporous membranes suffer from permeability/selectivity trade-off limitations as well as from poor scalability respectively. Hence, mixed-matrix membranes were proposed as a technically viable option to enhance both O2 permeability and O2/N2 selectivity of resulting membranes while retaining the advantages of polymeric materials. Nevertheless it is generally challenging to surpass the upper bound limit for O2/N2 separation as commercial polymers possess low O2 permeability. Thus, thermal treatment of polymers at elevated temperatures to form Carbon Molecular Sieve Membranes (CMSM) was conducted. Gas permeation properties of CMSM reveals substantial improvements in O2 permeability without sacrificing O2/N2 selectivity with reference to its precursor.

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