Project Supervisors: Dr Tony Chen, Dr Patricia Gorgojo, Dr Xiaolei Fan
Sulphur hexafluoride (SF6) is becoming increasingly restricted due to its high global warming potential. Currently, there is no like-for-like replacement of SF6 and the electricity utilities may have to adopt multiple gas candidates to replace SF6 in different applications. Furthermore, the current SF6 alternatives must be used as part of a binary or a tertiary mixture to avoid liquefaction, which introduce additional complexities to the handling of the new gas candidates. This project aims to investigate the potential of utilising membrane technology to separate environmentally friendly SF6 alternatives in the power industry. Simulation is required to assess the different parameters to evaluate a standalone membrane process versus a hybrid membrane-distillation process. Suitable polymeric membranes will be experimentally examined for different gas candidates and long-term experiment will be performed to assess the stability of the membrane.