What agenda do we, chemical engineers, need to focus on to realize sustainable society? With the development of utilization of hydrogen and renewable energy and micro or multi-scale production processes, a vision of the future for decentralized (or dispersed) material and energy production society can be painted. To keep up with this shift, we must have a perspective of nonlinear dynamics such as analysis for variation of operational or environmental disturbance and deliberate application of dynamic conditions. In this cross-sectional symposium, we aim at active discussion for realization of the sustainable society through presentations from a wide range of fields like process system engineering, reaction kinetic analysis, transport phenomena and modeling etc.