Seminars and Events at automatic control
All seminars are held at the Department of Automatic Control, in the seminar room M:2112B on the second floor in the M-building, unless stated otherwise.
MSc, Oscar Johansson: Improving the Efficiency of a Pulp Bleaching Plant through Data-Based Modeling
Seminarium
From:
2024-05-13 13:15
to
14:00
Place: Seminar Room M 3170-73 at Dept. of Automatic Control, LTH
Contact: olle [dot] kjellqvst [at] control [dot] lth [dot] se
Date & Time: May 13th, 13:15 - 14:00
Location: Seminar Room M 3170-73 at Dept. ofAutomatic Control, LTH
Author: Oscar Johansson
Title: Improving the Efficiency of a Pulp Bleaching Plant through Data-Based Modeling
Supervisor: Olle Kjellqvist
Co-supervisor: David Nilsson, Billerud
Examiner. Bo Bernhardsson
Zoom link: https://lu-se.zoom.us/j/63698300850?pwd=MCs5WTJMOFVvbDNONTFIbGpsKzhpQT09
Meeting ID: 636 9830 0850
Password: 114316
Abstract:
The kraft pulp bleaching process presents significant operational challenges due to its inherent non-linear reactions and unpredictable delays, complicating effective control and optimization. This thesis aims to improve the efficiency of the process through modeling it, and lays the groundwork for a new and improved automatic model-based control system. It explores a way of handling the varying delay by tracking the pulp throughout the process. This enables modeling of the chemical reactions using parameterized static models, fitted on existing production data. The models are used to create a decision support system to predict the future pulp quality from the bleaching process. The system showcases the possibilities of using model-based control to increase the efficiency of the plant. The pulp tracking also enables an evaluation of the current process, since it links input data to output data for the process. The analysis offers new insights into inefficiencies and areas for improvement in the current control strategies.