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Challenges in start-up control of a heat exchange reactor with exothermic reactions; a hybrid approach

Haugwitz, Staffan LU and Hagander, Per LU (2006) ADHS'06 2nd IFAC Conference on Analysis and Design of Hybrid Systems In Preprints. ADHS'06 2nd IFAC Conference on Analysis and Design of Hybrid Systems p.185-190
Abstract
In this paper, the control of a continuous heat exchange reactor is investigated from a hybrid perspective with focus on the start-up phase and the transition to the optimal operating point. The temperature sensitive exothermic reaction leads to the possibility of multiple steady states and in combination with safety constraints forms an interesting challenge for a safe and efficient start-up. A series of MPC controllers are developed with a switching logic that transfers the process from initial rest to continuous optimal operation mode. The control procedure is verified in simulations with a full nonlinear model of the Open Plate Reactor, an improved heat exchange reactor being developed by Alfa Laval AB. The case study can be seen as a... (More)
In this paper, the control of a continuous heat exchange reactor is investigated from a hybrid perspective with focus on the start-up phase and the transition to the optimal operating point. The temperature sensitive exothermic reaction leads to the possibility of multiple steady states and in combination with safety constraints forms an interesting challenge for a safe and efficient start-up. A series of MPC controllers are developed with a switching logic that transfers the process from initial rest to continuous optimal operation mode. The control procedure is verified in simulations with a full nonlinear model of the Open Plate Reactor, an improved heat exchange reactor being developed by Alfa Laval AB. The case study can be seen as a benchmark problem for start-up control of exothermic reactions (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
exothermic reactions, start-up control, continuous heat exchange reactor, temperature sensitive exothermic reaction, multiple steady state, MPC controllers, continuous optimal operation mode, switching logic, exothermic reaction, Open Plate Reactor, benchmark problem
in
Preprints. ADHS'06 2nd IFAC Conference on Analysis and Design of Hybrid Systems
pages
185 - 190
publisher
IFAC
conference name
ADHS'06 2nd IFAC Conference on Analysis and Design of Hybrid Systems
language
English
LU publication?
yes
id
cf26fcbe-cf82-4be9-94b7-bf62b07d245e (old id 616896)
alternative location
http://www.diee.unica.it/~adhs06/CD/PAPERS/TA2.1.pdf
date added to LUP
2007-11-24 10:20:44
date last changed
2016-04-16 08:50:26
@inproceedings{cf26fcbe-cf82-4be9-94b7-bf62b07d245e,
  abstract     = {In this paper, the control of a continuous heat exchange reactor is investigated from a hybrid perspective with focus on the start-up phase and the transition to the optimal operating point. The temperature sensitive exothermic reaction leads to the possibility of multiple steady states and in combination with safety constraints forms an interesting challenge for a safe and efficient start-up. A series of MPC controllers are developed with a switching logic that transfers the process from initial rest to continuous optimal operation mode. The control procedure is verified in simulations with a full nonlinear model of the Open Plate Reactor, an improved heat exchange reactor being developed by Alfa Laval AB. The case study can be seen as a benchmark problem for start-up control of exothermic reactions},
  author       = {Haugwitz, Staffan and Hagander, Per},
  booktitle    = {Preprints. ADHS'06 2nd IFAC Conference on Analysis and Design of Hybrid Systems},
  keyword      = {exothermic reactions,start-up control,continuous heat exchange reactor,temperature sensitive exothermic reaction,multiple steady state,MPC controllers,continuous optimal operation mode,switching logic,exothermic reaction,Open Plate Reactor,benchmark problem},
  language     = {eng},
  pages        = {185--190},
  publisher    = {IFAC},
  title        = {Challenges in start-up control of a heat exchange reactor with exothermic reactions; a hybrid approach},
  year         = {2006},
}