Naslov
Development of soft sensors for advanced control of isomerization process

Autori
Herceg, Srečko

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, doktorska disertacija

Fakultet
Fakultet kemijskog inženjerstva i tehnologije

Mjesto
Zagreb

Datum
30.09

Godina
2021

Stranica
153

Mentor
Bolf, Nenad

Ključne riječi
advanced control ; dynamic polynomial model ; isomerisation process ; process analyser ; soft sensor ; support vector machine

Sažetak
This doctoral thesis presents the development of soft sensor empirical models using support vector machine (SVM), and dynamic polynomial models for the continual estimation of the mole fractions of 2, 2-dimethylbutane, 2, 3-dimethylbutane, 2- methylpentane and 3-methylpentane as important product quality indicators in a refinery isomerisation process. During the model development, critical steps were taken, including selection and pre-processing of the industrial process data, which are broadly discussed in this thesis. Evaluation of the developed models on independent data sets and their implementation in the system for the advanced process control showed their reliability in estimating of the component contents. The soft sensors will serve primarily as a replacement during the process analysers’ failure and service periods, as well as it will be a part of advanced control of isomerisation process.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA