Soft sensors for product quality monitoring in debutanizer distillation columns

L Fortuna, S Graziani, MG Xibilia - Control Engineering Practice, 2005 - Elsevier
The paper deals with the design of neural based soft sensors to improve product quality
monitoring and control in a refinery by estimating the stabilized gasoline concentration (C5) …

Soft analyzers for a sulfur recovery unit

L Fortuna, A Rizzo, M Sinatra, MG Xibilia - Control Engineering Practice, 2003 - Elsevier
This work deals with the design and implementation of soft sensors for a Sulfur Recovery
Unit (SRU) in a refinery. Soft sensors are mathematical models able to emulate the behavior …

Development of soft sensors for isomerization process based on support vector machine regression and dynamic polynomial models

S Herceg, ŽU Andrijić, N Bolf - Chemical Engineering Research and Design, 2019 - Elsevier
A novel data-driven soft sensor models for application in the refinery isomerization process
are presented. Soft sensor models based on support vector machine regression (SVM) and …

Optimal selection of soft sensor inputs for batch distillation columns using principal component analysis

E Zamprogna, M Barolo, DE Seborg - Journal of process control, 2005 - Elsevier
In this paper, a novel methodology based on principal component analysis (PCA) is
proposed to select the most suitable secondary process variables to be used as soft sensor …

Development of soft sensor for neural network based control of distillation column

A Rani, V Singh, JRP Gupta - ISA transactions, 2013 - Elsevier
The present work is aimed at the design of Levenberg–Marquardt (LM) and adaptive linear
network (ADALINE) based soft sensors and their application in inferential control of a …

A nonlinear soft sensor based on multivariate smoothing procedure for quality estimation in distillation columns

S Park, C Han - Computers & Chemical Engineering, 2000 - Elsevier
An accurate on-line measurement of quality variables are essential for the successful
monitoring and control tasks in chemical process operations. However, due to the …

Soft-sensing estimation of plant effluent concentrations in a biological wastewater treatment plant using an optimal neural network

JF de Canete, P del Saz-Orozco, R Baratti… - Expert Systems with …, 2016 - Elsevier
Recent studies into the estimation and control of an activated sludge process (ASP) at a
wastewater treatment plant suggest that artificial-intelligence methods, such as neural …

Data-driven soft sensor approach for online quality prediction using state dependent parameter models

B Bidar, J Sadeghi, F Shahraki… - … and Intelligent Laboratory …, 2017 - Elsevier
The goal of this paper is to design and implementation of a new data-driven soft sensor that
uses state dependent parameter (SDP) models to improve product quality monitoring. The …

Soft sensor model for dynamic processes based on multichannel convolutional neural network

X Yuan, S Qi, YAW Shardt, Y Wang, C Yang… - … and Intelligent Laboratory …, 2020 - Elsevier
Soft sensors have been extensively used to predict the difficult-to-measure key quality
variables. The robust soft sensors should be able to sufficiently extract the local dynamic and …

Comparison of soft-sensor design methods for industrial plants using small data sets

L Fortuna, S Graziani, MG Xibilia - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
This paper analyzes a number of strategies that are devoted to improving the generalization
capabilities of neural-network-based soft sensors when only small data sets are available …