Mathematical modeling of the technological process and synthesis of the amidation control system

Abstract

There is still no exact mathematical model or control system for sodium sulphacyl production, so not all available control systems are accurate and not all possible disturbances of the system during operation have been identified. An urgent problem is to create an optimal mathematical model and use it as the basis for the synthesis of an amidator control system using a controller.
 In creating a mathematical model for the synthesis of the control system for the amidation process, it is necessary to understand the component of its mechanism. The amidation reaction takes place with a significant heat release, as well as through the available catalyst in the amidator, and side reactions occur. Using static and dynamic characteristics, a mathematical model was created, from which a control system was developed using a PID controller. 
 After a mathematical model has been developed, it becomes clear that the amidator must be cooled constantly for its correct operation, because the lower the temperature of the amide at the outlet, the better the product. The temperature must be maintained at a level of 324K to 327K with water supply for cooling at 19-20 kg/s. The implemented automatic process control allows the production capacity to be managed at minimal cost. The PID controller, which is configured according to the formula of the transfer function of the amidator and the transport delay link, was selected as the main controller. The controller used includes two components: integral and differential.
 The synthesis of the control system based on the PID controller made it possible to fully investigate the process taking into account the disturbances, which were still uncertain, increased the rate of reaching a steady level, and reduced production costs.