Plant object-orientated model formalization — case study: HDS plant design

Abstract Towards the realization of plant enterprise engineering environment (PEEE), the construction of the plant model is essential to understand and to manage the plant lifecycle activities. This paper demonstrates a technique to construct a plant model on the basis of object-oriented approach. The plant design model is represented using unified modeling language (UML). The hydrodesulfurization (HDS) plant is used as a case study where the piping and instrumentation diagram (P&ID) of the HDS plant process has been represented as composed of control group units (CGUs) connected to each other via connection points (CPs). An object-oriented modeling tool is used as a repository to construct the plant model.