TY - JOUR
T1 - Aspects of traditional and advanced control of the fluid catalytic cracking unit
AU - Cristea, Mircea Vasile
AU - Marinoiu, Vasile
AU - Agachi, Şerban Paul
PY - 2002
Y1 - 2002
N2 - The Fluid Catalytic Cracking Unit (FCCU) presents complex dynamic behavior due to the strong interactions between its variables. The objective of the control system is to maximize the feed throughput while maintaining the severity variables as close as possible to their constrained limits, where usually the optimum lies. Safe operating conditions have also to be fulfilled in order to avoid strong offsets and preserve the security of the unit. Based on a novel dynamic mathematical model of the FCCU, different configurations of the control system have been investigated. Both the traditional decentralized PID control and the advanced Model Predictive Control have been studied in the attempt of pointing out the benefits and drawbacks of these approaches. Specific tools, such as relative gain array, were used in order to investigate the inherent controllability properties of different control structures. Simulation results point out useful information for control system design and industrial implementation.
AB - The Fluid Catalytic Cracking Unit (FCCU) presents complex dynamic behavior due to the strong interactions between its variables. The objective of the control system is to maximize the feed throughput while maintaining the severity variables as close as possible to their constrained limits, where usually the optimum lies. Safe operating conditions have also to be fulfilled in order to avoid strong offsets and preserve the security of the unit. Based on a novel dynamic mathematical model of the FCCU, different configurations of the control system have been investigated. Both the traditional decentralized PID control and the advanced Model Predictive Control have been studied in the attempt of pointing out the benefits and drawbacks of these approaches. Specific tools, such as relative gain array, were used in order to investigate the inherent controllability properties of different control structures. Simulation results point out useful information for control system design and industrial implementation.
UR - http://www.scopus.com/inward/record.url?scp=8444229382&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8444229382&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:8444229382
SN - 0035-3930
VL - 47
SP - 1127
EP - 1132
JO - Revue Roumaine de Chimie
JF - Revue Roumaine de Chimie
IS - 10-11
ER -