Determinación del poder calorífico de los residuos sólidos agroindustriales de cascarilla de arroz y cáscara de coco con nanocristales de celulosa como una nueva alternativa de energía

Abstract

The objective of this research consisted of determining the calorific value of agro-industrial solid residues of rice husks and coconut shells with cellulose nanocrystals as an alternative for renewable energy (briquettes) in combustion processes. For the determination of the calorific value, its characterization was carried out by means of moisture, ash and elemental analysis of the biomass carbon and nitrogen, then different formulations of the coconut shell and rice husk biomass samples were made with (50-50) %, (25-75) % and (75-25) % respectively, and they were analyzed in the calorimetric pump to determine which of these tests contained the highest calorific value. Subsequently, the combination with the highest calorific value (50% coconut shell and 50% coconut husk) was mixed with cellulose nanocrystals in percentages of 5% and 15% of the nanomaterials, and finally, the combination with the highest calorific value without mixing it with nanocrystals was used to make briquettes. The results obtained allowed determining that the combination (50%-50%) of the residues obtained the highest calorific value of 34914.38998 J/g, with respect to its mixture with nanocrystals, its study was unfavorable since it decreased this parameter. For this reason, for the elaboration of the briquettes, the formulation was used, where they were obtained based on a pressure of 6 Bar and 80 C with a solid and uniform texture. It was concluded that its combination with cellulose nanocrystals is not feasible to increase its calorific value and its industrial use. It was recommended to experiment with other wastes that result in a better quality, in addition to a proper utilization of them.