Review of optimization methods for scheduling of chemical processes based on the time representation

According to multiproduct/multipurpose batch and continuous processes scheduling an overview of developments in the chemical processes scheduling is presented. Two scheduling methodologies based on time representation are introduced: one is discrete-time approaches the other is various continuous-time approaches, and the strengths and limitations of these approaches are examined. Also, important characteristics of chemical processes challenging to the scheduling problem are discussed, further research area and possible directions in the production scheduling problem are pointed out.