Obtención de briquetas obtenidas a partir de residuos del tallo de la papa para su uso como combustible.

Abstract

In this study, biomass briquettes were produced from potato stalks to evaluate their potential as a solid biofuel. Dried potato stalks with a moisture content of 10 % were used and pyrolyzed to obtain carbonised and non carbonised biomass. It was crushed and mixed with potato and achira binders in proportions of 10 % and 20 %. The briquetting process was carried out at a pressure of 10 MPa and compaction times of 30 and 60 s, followed by drying. Scanning Electron Microscopy (SEM) characterization revealed a porous structure and adequate particle and binder distribution, showing good adhesion. Raman spectra of the charred briquettes showed amorphous carbon characteristics with graphite defects. Thermogravimetric analysis (TGA) showed an ideal moisture content of 10% for biofuels and high levels of volatiles in the uncharred briquettes. In terms of compressive strength, the non-carbonised biomass briquettes performed better, withstanding more than 400 N at 20% deformation and acting effectively as an agglomerate. Finally, the average calorific values of the carbonised and non-carbonised briquettes were 15 MJ/kg, comparable to sugar cane bagasse and rice husk. CALII and NCALI stood out with 15.76 and 15.22 MJ/kg respectively, exceeding the threshold of 12.00 MJ/kg for biomass as biofuel. This study suggests that potato stalk briquettes have promising potential as a sustainable alternative to non-renewable fuels.n this study, biomass briquettes were produced from potato stalks to evaluate their potential as a solid biofuel. Dried potato stalks with a moisture content of 10 % were used and pyrolyzed to obtain carbonised and non carbonised biomass. It was crushed and mixed with potato and achira binders in proportions of 10 % and 20 %. The briquetting process was carried out at a pressure of 10 MPa and compaction times of 30 and 60 s, followed by drying. Scanning Electron Microscopy (SEM) characterization revealed a porous structure and adequate particle and binder distribution, showing good adhesion. Raman spectra of the charred briquettes showed amorphous carbon characteristics with graphite defects. Thermogravimetric analysis (TGA) showed an ideal moisture content of 10% for biofuels and high levels of volatiles in the uncharred briquettes. In terms of compressive strength, the non-carbonised biomass briquettes performed better, withstanding more than 400 N at 20% deformation and acting effectively as an agglomerate. Finally, the average calorific values of the carbonised and non-carbonised briquettes were 15 MJ/kg, comparable to sugar cane bagasse and rice husk. CALII and NCALI stood out with 15.76 and 15.22 MJ/kg respectively, exceeding the threshold of 12.00 MJ/kg for biomass as biofuel. This study suggests that potato stalk briquettes have promising potential as a sustainable alternative to non-renewable fuels.