Inappropriate disposal of solid waste materials leads to environmental problems. Therefore, the present work promoted the novelty of an environmentally friendly destination of the waste materials such as crude wax, a byproduct from pyrolysis of high-density polyethylene used packaging, and eucalypt leaves (a harvest residue). The application of these waste materials was investigated, each one blended with corn starch, in the production of charcoal briquettes. The briquettes were analyzed in terms of its higher heating value (HHV) and mechanical resistance. Charcoal was produced from the pyrolysis of eucalypt sawdust biomass. The charcoal yield obtained was 35%, and the HHV was 33.02 MJ/kg at 400°C. This temperature was ideal for the production of charcoal, aiming at minimizing energy and yield losses. The waste materials proportions evaluated in the composition of charcoal briquettes were 10%, 20%, and 30%. The corn starch proportion was fixed at 8%. The results showed that briquettes with 30% crude wax presented the best HHV, 23.45 MJ/kg, and greater shatter index, 97.80%. Satisfactory HHV were also achieved with 10% eucalypt leaves, 21.52 MJ/kg. In summary, the waste materials promoted charcoal briquettes with excellent results, providing it high energy efficiency and durability. Therefore, to minimize solid inadequate deposition, this study showed that crude wax and eucalypt leaves could be efficiently designated for charcoal briquetting.

中文翻译：

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木炭压块：废料的环保目的地

固体废弃物处置不当会导致环境问题。因此，目前的工作促进了废物材料的环保目的地的新颖性，例如粗蜡、高密度聚乙烯热解用包装的副产品和桉树叶（收获残留物）。研究了这些废料在木炭块生产中的应用，每一种都与玉米淀粉混合。根据其较高的热值 (HHV) 和机械阻力对煤球进行分析。木炭是通过桉树锯末生物质的热解生产的。获得的木炭收率为 35%，400°C 下的 HHV 为 33.02 MJ/kg。这个温度是生产木炭的理想温度，旨在最大限度地减少能源和产量损失。木炭组成中评估的废料比例为10%、20%和30%。玉米淀粉比例固定为8%。结果表明，含 30% 粗蜡的煤球的 HHV 最好，为 23.45 MJ/kg，破碎指数更高，为 97.80%。10% 桉树叶也达到了令人满意的 HHV，21.52 MJ/kg。综上所述，废旧材料促进木炭成型效果极佳，具有高能效和耐用性。因此，为了最大限度地减少固体沉积不足，本研究表明，粗蜡和桉树叶可以有效地指定用于木炭压块。和更大的破碎指数，97.80%。10% 桉树叶也达到了令人满意的 HHV，21.52 MJ/kg。综上所述，废旧材料促进木炭成型效果极佳，具有高能效和耐用性。因此，为了最大限度地减少固体沉积不足，本研究表明，粗蜡和桉树叶可以有效地指定用于木炭压块。和更大的破碎指数，97.80%。10% 桉树叶也达到了令人满意的 HHV，21.52 MJ/kg。综上所述，废旧材料促进木炭成型效果极佳，具有高能效和耐用性。因此，为了最大限度地减少固体沉积不足，本研究表明，粗蜡和桉树叶可以有效地指定用于木炭压块。