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A review of liquid-phase catalytic hydrodechlorination
Una revisión bibliográfica sobre hidrodecloración catalítica en fase liquida
DOI:
https://doi.org/10.15446/ing.investig.v27n3.14845Keywords:
light organochlorinated compound, liquid phase catalytic hydrodechlorinarion, palladium catalyst, HCl produced, reducing agent, base, solvent, kinetic study (en)compuestos organoclorados ligeros, diclorometano, cloroformo, tetracloroetileno, hidrodecloración catalítica en fase líquida, catalizadores de paladio, HCl producido, agentes reductores utilizados, bases utilizadas, solventes usados, estudios cinéticos (es)
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This survey was aimed at introducing the effect of light organochlorinated compound emissions on the environment, particularly on water, air, soil, biota and human beings. The characteristics and advantages of liquid phase catalytic hydrodechlorination as a technology for degrading these chlorinated compounds is also outlined and the main catalysts used in the hydrodechlorination process are described. Special emphasis is placed on palladium catalysts, their activity, the nature of active species and deactivation. The effect of several parameters is introduced, such as HCl, solvent, base addition and type of reducing agent used. The main results of kinetic studies, reactors used and the most important survey conclusions are presented.
Se presenta una visión general de la problemática actual de las emisiones de compuestos organoclorados ligeros, y las principales características y ventajas de la hidrodecloración catalítica en fase líquida. Se describen los más importantes catalizadores utilizados en el proceso de hidrodecloración, haciendo énfasis en los de paladio; su naturaleza, actividad y desactivación. Se explica detalladamente el efecto de varios parámetros, tales como: HCl producido, solvente, base y agente reductor utilizados en el proceso de hidrodecloración. Finalmente, se muestran los principales resultados de estudios cinéticos, el tipo de reactores usados, y se resumen los aspectos más relevantes de la revisión bibliográfica.
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