Optimización de Isotermas de adsorción mediante Simulated Annealing

Autores/as

DOI:

https://doi.org/10.33571/rpolitec.v19n38a2

Palabras clave:

adsorción, isoterma, carbón activado

Resumen

El presente trabajo estudia el ajuste de los datos experimentales de las isotermas de adsorción en un sistema de cromo hexavalente como adsorbato y carbón activado como adsorbente. Los ensayos de adsorción consistieron en poner en contacto 0,1 gramo de adsorbente con soluciones de diferente concentración de cromo hexavalente durante 48 h a distintas temperaturas. Para el modelado se propuso un método distinto al tradicional, mediante el cual se optimiza la energía de activación de la adsorción de manera que se generen las contantes de equilibrio que minimicen el error cuadrático medio respecto a los datos experimentales. Para ello, se empleó Simulated Annealing como algoritmo de optimización. Una temperatura inicial de 1000, 10000 iteraciones y un tamaño de paso de 0,05 fueron los parámetros utilizados. Ambos métodos presentan ajustes adecuados, mostrando energías de activación del mismo orden. Esto indicaría que el algoritmo de optimización sería comparable a los procedimientos tradicionales. 

 

The present work studies the adjustment of the experimental data of the adsorption isotherms in a system of hexavalent chromium as adsorbate and activated carbon as adsorbent. The adsorption tests consisted of using 0.1 gram of adsorbent with solutions of different concentrations of hexavalent chromium for 48 h at different temperatures. For the modeling, a method different from the traditional one was proposed, where the adsorption activation energy is optimized to generate the equilibrium constants that minimize the mean square error with respect to the experimental data. For this, Simulated Annealing was used as the optimization algorithm. An initial temperature of 1,000, 10,000 iterations, and a step size of 0.05 were the parameters used. Both methods present adequate adjustments, showing activation energies of the same order. This would indicate that the optimization algorithm would be comparable to traditional procedures.

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Publicado

2023-08-30

Cómo citar

Pellegrini, J., & de Celis , J. (2023). Optimización de Isotermas de adsorción mediante Simulated Annealing. Revista Politécnica, 19(38), 30–37. https://doi.org/10.33571/rpolitec.v19n38a2