Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column

Distillation column is one of the most widely used unit operations in process industries, and the operation and control of this unit was always a challenging task due to the complexity of operational parameters interactions and the lack of a real time measurement of the products composition. Time de...

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Main Authors: Mohanad , Osman, M., Ramasamy
Format: Conference or Workshop Item
Language:English
Published: 2009
Subjects:
Online Access:http://scholars.utp.edu.my/id/eprint/2043/
http://scholars.utp.edu.my/id/eprint/2043/1/CPE-32.pdf
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author Mohanad , Osman
M., Ramasamy
author_facet Mohanad , Osman
M., Ramasamy
author_sort Mohanad , Osman
building UTP Institutional Repository
collection Online Access
description Distillation column is one of the most widely used unit operations in process industries, and the operation and control of this unit was always a challenging task due to the complexity of operational parameters interactions and the lack of a real time measurement of the products composition. Time delay involved with GC measurement of the product composition prevented the utilization of effective closed-loop control. To overcome this problem an inferential control scheme based on soft sensor estimation of the products composition is now widely adopted. In this work, a neural network based soft sensor is developed to be used in an inferential control scheme of a pilot-scale binary distillation column. Data were collected from the distillation column under different operating conditions with forced disturbances in number of operation variables. The collected data is pre-processed for the removal of outliers, normalized and segmented into training and test data subsets. The most important process variables in the model and their lags have been chosen systematically. Different neural networks have been trained using the preprocessed data. Trial and error method is used to find the optimum number of neuron in the hidden layer for each network. The performance of different networks is discussed. The developed soft sensor can be utilized in an inferential control scheme on the distillation column.
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institution Universiti Teknologi Petronas
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spelling oai:scholars.utp.edu.my:20432017-01-19T08:25:15Z http://scholars.utp.edu.my/id/eprint/2043/ Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column Mohanad , Osman M., Ramasamy TA Engineering (General). Civil engineering (General) Distillation column is one of the most widely used unit operations in process industries, and the operation and control of this unit was always a challenging task due to the complexity of operational parameters interactions and the lack of a real time measurement of the products composition. Time delay involved with GC measurement of the product composition prevented the utilization of effective closed-loop control. To overcome this problem an inferential control scheme based on soft sensor estimation of the products composition is now widely adopted. In this work, a neural network based soft sensor is developed to be used in an inferential control scheme of a pilot-scale binary distillation column. Data were collected from the distillation column under different operating conditions with forced disturbances in number of operation variables. The collected data is pre-processed for the removal of outliers, normalized and segmented into training and test data subsets. The most important process variables in the model and their lags have been chosen systematically. Different neural networks have been trained using the preprocessed data. Trial and error method is used to find the optimum number of neuron in the hidden layer for each network. The performance of different networks is discussed. The developed soft sensor can be utilized in an inferential control scheme on the distillation column. 2009-08-12 Conference or Workshop Item PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/2043/1/CPE-32.pdf Mohanad , Osman and M., Ramasamy (2009) Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column. In: 3rd International Conference on Chemical & Bioprocess Engineering, 12-14, August 2009, Kota Kinabalu.
spellingShingle TA Engineering (General). Civil engineering (General)
Mohanad , Osman
M., Ramasamy
Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title_full Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title_fullStr Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title_full_unstemmed Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title_short Neural Network Based Soft Sensor for Inferential Control of a Binary Distillation Column
title_sort neural network based soft sensor for inferential control of a binary distillation column
topic TA Engineering (General). Civil engineering (General)
url http://scholars.utp.edu.my/id/eprint/2043/
http://scholars.utp.edu.my/id/eprint/2043/1/CPE-32.pdf