Outline
We will first discuss in more detail some of the terms used above and provide some definitions. We then present a review of some of the work on plantwide control. In section 2.4 we discuss the mathematically oriented approach (control structure design). Then, in section 2.5 we look at the process oriented approach. In section 2.6 we consider a fairly simple plant consisting of reactor, separator and recycle. In section 2.7 we consider the most studied plantwide control problem, namely the Tennessee Eastman problem introduced by Downs and Vogel (1993), and we discuss how various authors have attempted to solve the problem. Finally, in section 2.8 we propose a new plantwide control design procedure.