Title :
Parameter estimation in a dynamic model of a copolymerization process
Author :
Bindlish, Rahul ; Rawlings, James B. ; Young, Robert E.
Author_Institution :
Dept. of Chem. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
This paper presents the development of a mathematical model for a copolymerization process. The process model consists of the material balances for the reactor and simplified dynamics for the downstream separator. The dynamic model of the reactor consists of material balances including expressions for reaction kinetics. The kinetic expressions are simplified by using the quasi-steady-state assumption for active polymer chains and the moments of chain length distribution for the active and dead polymer chains. The model parameters are estimated using the maximum likelihood method. This model is augmented with an output disturbance model to obtain a closer representation of the actual polymerization process
Keywords :
chemical technology; maximum likelihood estimation; polymerisation; active polymer chains; chain length distribution moments; copolymerization process; dead polymer chains; downstream separator dynamics; dynamic model; maximum likelihood method; output disturbance model; parameter estimation; polymerization process; quasi-steady-state assumption; reactor dynamics; reactor material balances; Chemical engineering; Chemical processes; Data analysis; Equations; Feeds; Inductors; Kinetic theory; Parameter estimation; Particle separators; Polymers;
Conference_Titel :
American Control Conference, 1997. Proceedings of the 1997
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-3832-4
DOI :
10.1109/ACC.1997.609167
