Economic NMPC for Heat-Integrated Chemical Reactors
J. Straus, S. Skogestad
Norwegian University of Science and Technology
Abstract
This paper presents the application of economic NMPC for a heat-integrated chemical reactor. The chosen case study is given by the ammonia synthesis reactor. Through the application of economic NMPC, it is possible to move the operating point close to the unstable region, corresponding to a 12% increase in the extent of reaction with nominal operations conditions. As a further advantage, the increased conversion of ammonia corresponds to a higher outlet temperature of the system which can be utilized to produce high and medium pressure steam. The proposed economic NMPC is able to adjust in the case of disturbances fast to the new optimal conditions and maintains the productivity of the reactor without engaging into limit-cycle behaviour or extinction of the reactor
Full paper
Session
Model Predictive Control (Lecture)
Reference
Straus, J.; Skogestad, S.: Economic NMPC for Heat-Integrated Chemical Reactors. Editors: Fikar, M. and Kvasnica, M., In Proceedings of the 2017 21st International Conference on Process Control (PC), Štrbské Pleso, Slovakia, June 6 – 9, 309–314, 2017.
BibTeX
| @inProceedings{pc2017-088, | ||
| author | = { | Straus, J. and Skogestad, S.}, |
| title | = { | Economic NMPC for Heat-Integrated Chemical Reactors}, |
| booktitle | = { | Proceedings of the 2017 21st International Conference on Process Control (PC)}, |
| year | = { | 2017}, |
| pages | = { | 309-314}, |
| editor | = { | Fikar, M. and Kvasnica, M.}, |
| address | = { | \v{S}trbsk\'e Pleso, Slovakia}} |