Control and energy analyses of a driving force-based aromatic mixture distillation columns sequence

Simulation and Control of an Aromatic Distillation Column

In general, the objective of distillation control is to maintain the desired products quality. In this paper, the performances of different one point control strategies for an aromatic distillation column have been compared through dynamic simulation. These methods are: a) Composition control using measured composition directly. This method sufferes from large sampling delay of measuring de...

Analysis and Control of Distillation Columns

Here MI is the total holdup inside the column, and MD and MB are the condenser and reboiler holdups. S = yD(1 xB) (1 yD)xB is the separation factor and Is = DyD(1 yD) + BxB(1 xB) is the \impurity sum". Note that Is may be extremely small for columns with both products of high purity (1 yD and xB both small) resulting in very large linearized values of 1. The response to changes in the internal ...

DYNAMICS AND CONTROL OF DISTILLATION COLUMNS A tutorial introduction

Distillation is the most common unit operation in the chemical industry and understanding its behavior has been a defining characteristic of a good chemical engineer. Yet, distillation research has repeatedly been proclaimed to be a dead area, and some universities have even considered to stop teaching the basics of McCabe-Thiele diagrams. However, there has been renewed interest the last years...

A Survey for the Selection of Control Structure for Distillation Columns Based on Steady State Controllability Indexes

simulation and control of an aromatic distillation column

in general, the objective of distillation control is to maintain the desired products quality. in this paper, the performances of different one point control strategies for an aromatic distillation column have been compared through dynamic simulation. these methods are: a) composition control using measured composition directly. this method sufferes from large sampling delay of measuring device...