A new approach to the joined estimation of the heat generated by a semicontiunuous emulsion polymerization Qr and the overall heat exchange parameter UA

Brazilian Journal of Chemical Engineering

F. B. Freire²  T. F. Mckenna¹  S. Othman¹  R. Giudici² 

[1],Universidade de São Paulo Escola Politécnica Departamento de Engenharia QuímicaSão Paulo SP ,Brasil

关键词: emulsion polymerization;    on-line calorimetry;    state estimation;   

DOI  :  10.1590/S0104-66322004000200020

来源: SciELO

【 摘 要 】

This work is concerned with the coupled estimation of the heat generated by the reaction (Qr) and the overall heat transfer parameter (UA) during the terpolymerization of styrene, butyl acrylate and methyl methacrylate from temperature measurements and the reactor heat balance. By making specific assumptions about the dynamics of the evolution of UA and Q R, we propose a cascade of observers to successively estimate these two parameters without the need for additional measurements of on-line samples. One further aspect of our approach is that only the energy balance around the reactor was employed. It means that the flow rate of the cooling jacket fluid was not required.

【 授权许可】

CC BY   
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