To realise a sustainable circular society, chemical processes need to be made more efficient and compact through process intensification. In reactors that integrate the different operations of separation and reaction, synergistic effects are expected to lead to improved energy efficiency and equipment miniaturization. This symposium will consist of invited and general presentations and aims to hold a wide-ranging discussion from a cross-disciplinary perspective on the development of reaction and separation membranes, the design and analysis of reactors, and application development.