In this work the problem of on-line monitoring of product quality and production rate in a copolymer reactor is addressed, using an estimation scheme with secondary measurements …
H Hernández, J Alvarez - Journal of Process Control, 2003 - Elsevier
In this work the problem of designing a state estimator for completely or partially observable continuous nonlinear plants with discrete measurements is addressed. The combination of a …
The difficulties encountered in chemical engineering arise from the lack of reliable and robust sensors. Several works deal with the design of software sensors in order to estimate …
Polymerization processes require adequate monitoring to ensure that the final product meets specification. Various on-line measuring techniques have been developed and …
S Tatiraju, M Soroush - Industrial & engineering chemistry …, 1997 - ACS Publications
This paper concerns nonlinear state estimation in a continuous polymerization reactor where free-radical solution polymerization of methyl methacrylate takes place. Initiator and …
C Ling, C Kravaris - AIChE Journal, 2017 - Wiley Online Library
In this article, the problem of observer design in linear multi‐output systems with asynchronous sampling is addressed. The proposed multi‐rate observer is based on a …
T López, J Alvarez - Journal of Process Control, 2004 - Elsevier
In this work, the effect of the estimation structure on the performance and robustness characteristics of a geometric nonlinear estimator is studied for free-radical continuous …
The control of polymerization processes has central importance because operational conditions affect the processing and end-use properties of the product. The nonlinear …
In industrial processes many key process variables (like conversions, selectivi ties, concentrations, viscosities etc.) can not be measured adequately (accurately and …