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|Type:||Artigo de evento|
|Title:||A Non-linear Concentration Control Strategy For High Performance Operation Through Softsensor|
|Abstract:||A fixed bed catalytic reactor for production of acetaldehyde by ethyl alcohol oxidation over Fe-Mo catalyst is considered as a representative of many typical catalytic industrial reactors. The control of the concentration presents limitations due to the long sampling time often necessary to obtain concentration values through analytical devices. A methodology for concentration control is proposed, through the control of the temperature of the reactor using soft sensor. A procedure for the development of soft sensors to be used in the concentration estimation and defining the best temperature set points in the reactor is proposed. The model based on a neural network is used to optimize the temperature setpoints, which leads to the desired output concentration of the reactor. The on-line definition of the best temperature set point of the closed loop allows to overcome the problems of the variations in the dynamic behavior of the process as catalyst deactivation. This is an abstract of a paper presented at the 7th World Congress of Chemical Engineering (Glasgow, Scotland 7/10-14/2005).|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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