Abstract

The development of mathematics model especially non-square open-loop dynamic model has grown rapidly since four decades. Because of the need of simplicity and accuracy, industrial world is demanding a dynamic mathematical model as simple as possible but it still can represent the whole real process. Therefore, to meet those needs, an open-loop dynamic model of methyl acetate production process by using reactive distillation column has been built. Feed ratio, reflux ratio and reboiler duty were chosen to be the manipulated variables to make a better performance rather than only reflux flowrate and reboiler duty. Methyl acetate fraction in distillate and water fraction in bottom were still be selected as controlled variables, so a non-square open-loop dynamic model was formed.

Highlights

  • In the development of chemical industry on a large scale, it is necessary to understand the whole process behavior

  • In 1973, Wood and Berry introduced a mathematical model in the form of transfer function matrix of the distillation column

  • This mathematic model was referred to as shell standard control problem where it has two controlled variables and three manipulated variables [5]

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Summary

Introduction

In the development of chemical industry on a large scale, it is necessary to understand the whole process behavior. In 1973, Wood and Berry introduced a mathematical model in the form of transfer function matrix of the distillation column. This matrix represents dynamic process of a distillation column in the form of 2x2 MIMO which has two controlled variables and two manipulated variables. In 1987, a non-square MIMO matrix was introduced by Prett and Morari This mathematic model was referred to as shell standard control problem where it has two controlled variables and three manipulated variables [5]. The development of mathematical model which can represent RDC (Reactive Distillation Column) process as a whole in the form of non-square MIMO with FOPTD (first order plus time delay) transfer function will be put forward

Process Description
Production of Methyl Acetate by Using Reactive Distillation Column
Process Simulation
Step Test
Step Test Result
Findings
Conclusion

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