An advanced control solution for a fluid catalytic cracking unit

Distributed model predictive control

Mihaela Iancu, Mircea V. Cristea, Paul Serban Agachi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The complex plants with strongly interacting processes could be operated with significant control performances using plant-wide advanced control techniques and multivariable controllers. The more complex is the process model, the more difficult and expensive is the process modeling and control design system. Therefore, the control strategy of complex chemical processes started to be reasoned in a modern way from the point of view of distributed control. The newest solution is to approach the control for large-scale systems as distributed model predictive control (DMPC).The candidate to test the performances of DMPC in this paper is represented by a fluid catalytic cracking (FCC) process selected due to its economic importance of this process in a refinery. Real industrial data regarding the FCC process parameters and equipments geometry were used. The FCC simulator has been developed using MatLab/Simulink. The dynamic model of the FCC plant comprise the feed system model, the reactor riser model, the reactor stripper model, the regenerator model, the air blower model, the catalyst circulation lines model, and the wet gas compressor model. The mathematical model has been developed based on momentum, mass and energy balances containing the process hydrodynamics, the heat transfer, the mass transfer and the catalytic cracking kinetics. The catalytic cracking reactions implemented in the dynamic model are described by 5-lumps kinetic model.The goal of this paper is to develop a DMPC strategy for a FCC unit. Furthermore, the performance of the DMPC system in rejecting disturbances is compared with other control configurations. The results indicate that the proposed DMPC can compete with the performance of a fully centralized MPC system benefiting of its distributed design incentives.

Original languageEnglish
Pages (from-to)797-801
Number of pages5
JournalComputer Aided Chemical Engineering
Volume30
DOIs
Publication statusPublished - Jul 2 2012

Fingerprint

Fluid catalytic cracking
Model predictive control
Catalytic cracking
Dynamic models
Predictive control systems
Gas compressors
Blowers
Kinetics
Regenerators
Energy balance
Large scale systems
Momentum
Mass transfer
Hydrodynamics
Simulators
Mathematical models
Heat transfer
Controllers
Economics
Catalysts

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Computer Science Applications

Cite this

@article{ec3a1a3ffaa1433bb33bf05e87042edb,
title = "An advanced control solution for a fluid catalytic cracking unit: Distributed model predictive control",
abstract = "The complex plants with strongly interacting processes could be operated with significant control performances using plant-wide advanced control techniques and multivariable controllers. The more complex is the process model, the more difficult and expensive is the process modeling and control design system. Therefore, the control strategy of complex chemical processes started to be reasoned in a modern way from the point of view of distributed control. The newest solution is to approach the control for large-scale systems as distributed model predictive control (DMPC).The candidate to test the performances of DMPC in this paper is represented by a fluid catalytic cracking (FCC) process selected due to its economic importance of this process in a refinery. Real industrial data regarding the FCC process parameters and equipments geometry were used. The FCC simulator has been developed using MatLab/Simulink. The dynamic model of the FCC plant comprise the feed system model, the reactor riser model, the reactor stripper model, the regenerator model, the air blower model, the catalyst circulation lines model, and the wet gas compressor model. The mathematical model has been developed based on momentum, mass and energy balances containing the process hydrodynamics, the heat transfer, the mass transfer and the catalytic cracking kinetics. The catalytic cracking reactions implemented in the dynamic model are described by 5-lumps kinetic model.The goal of this paper is to develop a DMPC strategy for a FCC unit. Furthermore, the performance of the DMPC system in rejecting disturbances is compared with other control configurations. The results indicate that the proposed DMPC can compete with the performance of a fully centralized MPC system benefiting of its distributed design incentives.",
author = "Mihaela Iancu and Cristea, {Mircea V.} and Agachi, {Paul Serban}",
year = "2012",
month = "7",
day = "2",
doi = "10.1016/B978-0-444-59520-1.50018-X",
language = "English",
volume = "30",
pages = "797--801",
journal = "Computer Aided Chemical Engineering",
issn = "1570-7946",
publisher = "Elsevier",

}

An advanced control solution for a fluid catalytic cracking unit : Distributed model predictive control. / Iancu, Mihaela; Cristea, Mircea V.; Agachi, Paul Serban.

In: Computer Aided Chemical Engineering, Vol. 30, 02.07.2012, p. 797-801.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An advanced control solution for a fluid catalytic cracking unit

T2 - Distributed model predictive control

AU - Iancu, Mihaela

AU - Cristea, Mircea V.

AU - Agachi, Paul Serban

PY - 2012/7/2

Y1 - 2012/7/2

N2 - The complex plants with strongly interacting processes could be operated with significant control performances using plant-wide advanced control techniques and multivariable controllers. The more complex is the process model, the more difficult and expensive is the process modeling and control design system. Therefore, the control strategy of complex chemical processes started to be reasoned in a modern way from the point of view of distributed control. The newest solution is to approach the control for large-scale systems as distributed model predictive control (DMPC).The candidate to test the performances of DMPC in this paper is represented by a fluid catalytic cracking (FCC) process selected due to its economic importance of this process in a refinery. Real industrial data regarding the FCC process parameters and equipments geometry were used. The FCC simulator has been developed using MatLab/Simulink. The dynamic model of the FCC plant comprise the feed system model, the reactor riser model, the reactor stripper model, the regenerator model, the air blower model, the catalyst circulation lines model, and the wet gas compressor model. The mathematical model has been developed based on momentum, mass and energy balances containing the process hydrodynamics, the heat transfer, the mass transfer and the catalytic cracking kinetics. The catalytic cracking reactions implemented in the dynamic model are described by 5-lumps kinetic model.The goal of this paper is to develop a DMPC strategy for a FCC unit. Furthermore, the performance of the DMPC system in rejecting disturbances is compared with other control configurations. The results indicate that the proposed DMPC can compete with the performance of a fully centralized MPC system benefiting of its distributed design incentives.

AB - The complex plants with strongly interacting processes could be operated with significant control performances using plant-wide advanced control techniques and multivariable controllers. The more complex is the process model, the more difficult and expensive is the process modeling and control design system. Therefore, the control strategy of complex chemical processes started to be reasoned in a modern way from the point of view of distributed control. The newest solution is to approach the control for large-scale systems as distributed model predictive control (DMPC).The candidate to test the performances of DMPC in this paper is represented by a fluid catalytic cracking (FCC) process selected due to its economic importance of this process in a refinery. Real industrial data regarding the FCC process parameters and equipments geometry were used. The FCC simulator has been developed using MatLab/Simulink. The dynamic model of the FCC plant comprise the feed system model, the reactor riser model, the reactor stripper model, the regenerator model, the air blower model, the catalyst circulation lines model, and the wet gas compressor model. The mathematical model has been developed based on momentum, mass and energy balances containing the process hydrodynamics, the heat transfer, the mass transfer and the catalytic cracking kinetics. The catalytic cracking reactions implemented in the dynamic model are described by 5-lumps kinetic model.The goal of this paper is to develop a DMPC strategy for a FCC unit. Furthermore, the performance of the DMPC system in rejecting disturbances is compared with other control configurations. The results indicate that the proposed DMPC can compete with the performance of a fully centralized MPC system benefiting of its distributed design incentives.

UR - http://www.scopus.com/inward/record.url?scp=84862867086&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862867086&partnerID=8YFLogxK

U2 - 10.1016/B978-0-444-59520-1.50018-X

DO - 10.1016/B978-0-444-59520-1.50018-X

M3 - Article

VL - 30

SP - 797

EP - 801

JO - Computer Aided Chemical Engineering

JF - Computer Aided Chemical Engineering

SN - 1570-7946

ER -