Operability analysis of chemical process network based on dissipativity

Interaction between process units often leads to operability problems. Modern chemical plants consist of a large number of process units with with complex interconnection, such as recycle and bypass streams, as well as heat integration. This paper presents a new approach to plantwide operability analysis from a network perspective. The plantwide process is represented by a network of process units. The interactions between process units are analyzed using the dissipativity theory, explicitly based on the network topology and dynamic features of the distinct subsystems. The proposed is scalable and thus applicable for large complex chemical processes.