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Información tecnológica

versión On-line ISSN 0718-0764

Resumen

ASTORGA, Carlos M; QUINTERO-MARMOL, Enrique; VELA, Luis G  y  TORRES, Lizeth. A Nonlinear Observer for Estimating Concentrations in a Methanol/Ethanol Distillation Process. Inf. tecnol. [online]. 2006, vol.17, n.6, pp.35-41. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642006000600007.

This paper presents the design of a non-linear constant gain observer for the estimation of plate compositions in a distillation column based on measurements of the temperatures in the boiler and in the condenser. The observer is based on a non-linear model of the binary distillation process for ethanol/methanol. Both the model and the observer were validated experimentally using a laboratory distillation column. The main characteristic of the observer was that the gains were constant and did not require resolution of any dynamic systems. The good agreement between the variables estimated and the experimental measurements allowed concluding that this observer could be used in non-linear control applications.

Palabras clave : distillation column; binary distillation; observer; modeling; nonlinear systems.

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