Potencial de fabricación de pellets de residuos forestales de Cupressus lusitanica y Tectona grandis en Costa Rica.

En los procesos de transformacion y aserrio de la madera se generan residuos que pueden usarse como fuentes de materia prima para la produccion de pellets. El objetivo de este trabajo fue evaluar la eficiencia, la calidad por imagenes de rayos X y las propiedades energeticas, fisicas y mecanicas de pellets fabricados con residuos obtenidos del procesamiento de trozas de Cupressus lusitanica y Tectona grandis. Los resultados indicaron un porcentaje de eficiencia bajo para ambas especies forestales, con 25% para C. lusitanica y 20% para T. grandis. En la evaluacion de calidad, los pellets de C. lusitanica se caracterizaron por poseer zonas de mayor claridad y pocas fisuras de corto tamano en su superficie, mientras que en los de T. grandis se presenta un mayor numero de zonas de mayor claridad, ademas de mostrar fisuras de mayor profundidad y largo. En relacion con las propiedades evaluadas, se encontro que los pellets de T. grandis tienen una menor densidad aparente, menor PC, menor resistencia a la compresion y menor uniformidad en la densidad de su superficie y un porcentaje de cenizas, CH y durabilidad mecanica mayor, al compararlos con los de C. lusitanica.

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