Pirólisis catalítica de biomasa de un residuo agrícola sobre zeolita ZSM-11 modificada con Níquel
Date
2017
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Abstract
Se estudió la pirólisis catalítica de cáscaras de maní (Arachis hipogaea) en un reactor de lecho fijo que integra los procesos de pirólisis y craqueo catalítico. Se analizó el efecto de los catalizadores sobre la composición del bio-oil, incorporando diferentes cantidades de Níquel a zeolitas ZSM-11, por el método de impregnación húmeda. Las experiencias se realizaron con cargas de metal en un rango desde 1% a 10% p/p. Estos materiales fueron exhaustivamente caracterizados por Difracción de Rayos X, Reducción a Temperatura Programada TPR y Análisis Termogravimétrico. Al evaluar la composición del bio-oil generado, se encontró que aumenta la selectividad hacia algunos hidrocarburos aromáticos y aldehídos de interés. Los mejores resultados se obtuvieron cuando el contenido del metal fue del 3% p/p, disminuyendo para cargas menores y mayores.
Catalytic pyrolysis of peanut shells (Arachis hipogaea) were studied in a fixed-bed reactor, which integrates both processes, pyrolysis and catalytic cracking. The effect of the catalytic material over bio oil composition was studied, introducing Nickel by wet impregnation method in ZSM-11 zeolites. The experiments were done with different loading of metal, ranging from 1 to 10 wt%. These catalysts were thoroughly characterized by X-Ray Diffraction, Temperature Programmed Reduction and Thermogravimetric Analysis. Evaluating bio-oil composition, it was found that some desired aromatic hydrocarbons and aldehydes selectivities were improved. Best results were obtained when 3 wt% of the metal was loaded, reducing for lower and higher contents.
Catalytic pyrolysis of peanut shells (Arachis hipogaea) were studied in a fixed-bed reactor, which integrates both processes, pyrolysis and catalytic cracking. The effect of the catalytic material over bio oil composition was studied, introducing Nickel by wet impregnation method in ZSM-11 zeolites. The experiments were done with different loading of metal, ranging from 1 to 10 wt%. These catalysts were thoroughly characterized by X-Ray Diffraction, Temperature Programmed Reduction and Thermogravimetric Analysis. Evaluating bio-oil composition, it was found that some desired aromatic hydrocarbons and aldehydes selectivities were improved. Best results were obtained when 3 wt% of the metal was loaded, reducing for lower and higher contents.
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Keywords
Pirólisis Catalítica, Cáscaras de mani, Bio-oil, Ni-ZSM-11
Citation
XX Congreso Argentino de Catálisis (2017).
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