Tratamiento de agua basado en la adsorción de crudo en nanopartículas polares y no polares

Palabras clave

Vacuum residue
Sorption kinetic Adsorción
Emulsión O/W
Residuo de refinería

Cómo citar

Martínez Aguilar, M., Cortés, F. B., & Franco Ariza, C. A. (2013). Tratamiento de agua basado en la adsorción de crudo en nanopartículas polares y no polares. Informador Técnico, 77(1), 59.


Uno de los impactos de la producción de petróleo es el aumento de la contaminación debido a la descarga de aguas de formación. Este documento  presenta el estudio de la adsorción de crudo en nanopartículas de sílice funcionalizada con residuos de refinería (VR) al 2 y al 4 %wt. Además de zeolita y zeolita modificada (2 y 4%wt de VR) para reducir la cantidad de crudo en las emulsiones crudo/agua (W/O). Los modelos de Langmuir y Freundlich se usaron para ajustar las isotermas de adsorción a los datos experimentales. El rango de la concentración de crudo inicial fue desde 200 hasta 2000 mg/l. El cambio en la concentración después de la adsorción se determinó utilizando un espectrofotómetro UV visible. La cantidad máxima de adsorción se obtuvo con nanopartículas de sílice modificada al 4% para una concentración inicial de 200 mg/g con una eliminación de crudo del 100%, 9 mg/g más que la obtenida con zeolita modificada de 191 mg/g a la misma concentración. Los modelos de pseudo primer y pseudo segundo orden se usaron para ajustar los datos experimentales de la cinética de adsorción obtenidos a diferentes concentraciones de crudo, con mejores resultados para el modelo de pseudo segundo orden.


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