Parameter Identification and On-line Estimation of a Reduced Kinetic Model
In this work, we present the estimation techniques used to update the model parameters in a reduced kinetic model describing the oxidation-reduction re- actions in a hydrothermal oxidation reactor. The model is used in a nonlinear model-based controller that minimizes the total aqueous nitrogen in the reac- tor effluent. Model reduction is accomplished by com- bining similar reacting compounds into one of four component groups and considering the global reac- tion pathways for each of these groups. The reduced kinetic model developed for thk reaction system pro- vides a means to characterize the complex chemical reaction system without considering each chemicaJ species present and the reaction kinetics of every pos- sible reaction pathway. For the reaction system under study, model reduction is essential in order to reduce the computational requirement so that on-line imple- mentation of the nonlinear model-based controller is possible and also to reduce the amount of a priori information required for the model.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EE)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7423
- Report Number(s):
- LA-UR-99-910; ON: DE00007423
- Resource Relation:
- Conference: 1999 American Control Conference, San Diego, CA, June 2-4, 1999
- Country of Publication:
- United States
- Language:
- English
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