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Tratamiento de corrientes de gas que contienen tolueno mediante oxidación a base de persulfato: variables del proceso

Ana S P Alves^1,2, Carmen S D Rodrigues^1,2, João M Miranda^3,2

¹LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal.

Industrial & engineering chemistry research

|January 23, 2026

Resumen

Este estudio optimizó la eliminación de tolueno utilizando procesos avanzados de oxidación (AOP) de persulfato activado. Un reactor de columna de burbujas con una placa difusora de alta porosidad resultó ser el más eficaz, permitiendo el uso de agua del grifo para una transferencia de masa eficiente de gas a líquido.

Área de la Ciencia:

Ciencias Ambientales
Ingeniería Química
Tecnologías de Tratamiento de Agua

Sus antecedentes:

Los gases residuales industriales a menudo contienen compuestos orgánicos volátiles (COV) como el tolueno.
Los procesos de oxidación avanzada (AOP) son eficaces para la degradación de contaminantes, pero dependen de una transferencia de masa eficiente de gas a líquido.
La optimización de la transferencia de masa es fundamental para el rendimiento de los AOP en fase gaseosa.

Objetivo del estudio:

Investigar y optimizar la transferencia de masa de gas a líquido de tolueno en un AOP de persulfato activado.
Evaluar el impacto de la configuración del reactor, el tipo de difusor y la matriz de agua en la eficiencia de degradación del tolueno.

Principales métodos:

Se estudió la degradación del tolueno utilizando un AOP de persulfato activado.
Los experimentos compararon reactores de burbujas frente a reactores de columna de burbujas con diferentes relaciones de aspecto.
El estudio evaluó diferentes difusores (acuario frente a placas) con diferentes porosidades y matrices de agua (agua destilada frente a agua del grifo).

Principales resultados:

El reactor de columna de burbujas con una placa difusora que exhibe una mayor porosidad arrojó el mejor rendimiento de degradación del tolueno.
La eficiencia del proceso no se vio afectada significativamente por el tipo de matriz de agua utilizada (agua destilada frente a agua del grifo).
Las configuraciones optimizadas del reactor y del difusor mejoran la eliminación de tolueno de las corrientes de gas.

Conclusiones:

Un reactor de columna de burbujas combinado con una placa difusora de alta porosidad es muy eficaz para la eliminación de tolueno a través de AOP de persulfato activado.
El uso de agua del grifo es factible, lo que simplifica las aplicaciones prácticas y reduce los costos operativos.
Esta investigación proporciona una base para el diseño de sistemas AOP eficientes para la eliminación de COV industriales.

Palabras clave:

persulfato tolueno eliminación de tolueno corrientes de gas procesos avanzados de oxidación reactor de columna de burbujas transferencia de masa difusor de alta porosidad agua del grifo

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