A new approach for energy-saving process intensification was demonstrated by a heat integration method taking for instance the C-5 splitter distillation plant existing for extracting pure c-pentane from a petroleum hydrocarbon mixture obtained by naphtha cracking. A process simulation analysis was made without loosening the specifications of separation of the existing plant. A new process-inten...

Abstract The task of fault detection is crucial in modern chemical industries for improved product quality and process safety. In this regard, data-driven (FD) strategy based on independent component analysis (ICA) has gained attention since it improves monitoring by capturing non-gaussian features the data. However, presence measurement noise data degrades performance FD masks important inform...

In this paper we will consider the most known ratios control schemes ((L/D, V/B),(L/D,V/F), Ryskamp’s, and (D/(L+D),V/B)) for binary distillation column and we compare them in the basis of interactions and disturbance propagation. The models for these configurations are deuced using mathematical transformations taking the energy balance structure (LV) as a base model. The dynamic relative magni...

The current method for composition measurement of an industrial distillation column includes an offline method, which is slow, tedious and could lead to inaccurate results. Among advantages of using online composition designed are to overcome the long time delay introduced by laboratory sampling and provide better estimation, which is suitable for online monitoring purposes. This paper pres...

Distillation column is one of the key elements in the process of chemical industries, which is having nonlinear, multivariable and non-stationary characteristics. The conventional controller like PID provides ineffective control action for nonlinear system. This paper deals the design of the model based predictive controller to control composition of the Bubble cap distillation column consists ...

In this work, the use of heteroazeotropic distillation for separation of thermally instable substances is discussed. A new process has been developed and analysed, which makes use of the fact that the boiling temperature of a heteroazeotrope is always lower that that of its constituents. Three phase distillation is characterised by the fact that two liquid phases and a vapour phase coexist in t...

The issues raised in advanced process control applications lead control engineers to be aware of the need of integrating advanced information processing capabilities in the process control loop. In this paper a SIMULINK based tool has been developed for analysis and design of multivariable neural based control systems. This tool has been applied to the control of a high purity distillation colu...

The feasibility of a novel multivessel batch distillation–decanter hybrid for simultaneous separation of ternary heterogeneous azeotropic mixtures is addressed both theoretically and by simulations. The multivessel column is operated as a closed system without product withdrawal and the three components are accumulated in the vessels during one closed operation. The closed mode (total reflux) o...

Anefficient algorithmisdeveloped for solving the systemofdifferential algebraic equations (DAE)describing the dynamics of a reactive distillation (RD) column using the equilibrium tray model. Unlike existing eceived in revised form 23 January 2009 ccepted 27 January 2009 vailable online 4 February 2009 eywords: eactive distillation algorithms, the rate of change of tray specific enthalpy is obt...

There has been much discussion in the literature regarding whether column profiles can cross distillation boundaries and by how much. The traditional crossing of boundaries demonstrated by Wahnschafft et al. (1993) represents a very constraint case and was of academic interest only as the operating region for columns was small. The goal of this paper is to show how the design by using column se...