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首页> 外文期刊>Waste Management >Co-hydrothermal carbonization of food waste with yard waste for solid biofuel production: Hydrochar characterization and its pelletization
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Co-hydrothermal carbonization of food waste with yard waste for solid biofuel production: Hydrochar characterization and its pelletization

机译：食物垃圾的食品废料与余地垃圾加入水热碳化，用于实心生物燃料生产：氢淀粉及其造粒

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In this study, Co-HTC of food waste with yard waste was conducted for biofuel pellets production, and also to understand any possible synergy between two feedstock types. The calorific value of blended raw feedstock was 13.5 MJ/kg which increased to 27.6 Mj/kg after Co-HTC at 220 °C for 1 h. Energy yield and fuel ratio calculated was 45% and 0.65 respectively. Hydrochar produced demonstrated a stable combustion profile as compared to reactive combustion profile for raw samples. The blend of food and yard waste hydrochar was easily pelletized, and its pellets showed improvement in mechanical properties as compared to pellets made from mono-substrate((food waste) hydrochar. Pellets produced from the blend of food and yard waste hydrochar showed higher energy (46.4 MJ/m~3) and mass density (1679 kg/m~3) as compare to the pellet produced from food waste hydrochar alone. Tensile strength obtained for the blended hydrochar pellet was 2.64 MPa while same for the pellets produced from food waste hydrochar alone was 1.30 MPa. In addition to improving hydrophobicity, soften lignin from yard waste also helped in binding the food waste hydrochar particles together within the pellets matrix during heated pelletization. The results presented in the study indicated that in the presence of all favorable conditions, there is a potential that approximately 11% of the global coal consumption could be replaced by the combustion of hydrochar produced from food and yard waste globally.
机译：在这项研究中，为生物燃料颗粒生产进行了船用垃圾的食物垃圾的共同HTC，也可以了解两种原料类型之间的任何可能的协同作用。混合原料的热值为13.5mJ / kg，在220℃下含有1小时后增加至27.6mJ / kg。计算的能量产量和燃料比分别为45％和0.65。与原料样品的反应燃烧曲线相比，生成的水炭证明了稳定的燃烧曲线。食品和院子废物氢醌的混合物容易造粒，与由单衬底（（食品废物）氢乙酸制成的颗粒相比，其颗粒在机械性能方面的改善。由食物和院子余量的混合物产生的颗粒显示出更高的能量（46.4 mJ / m〜3）和质量密度（1679 kg / m〜3），与单独的食品废物氢乙酸产生的颗粒相比。用于混合的氢淀粉的拉伸强度为2.64mPa，而来自食物生产的颗粒相同单独的废物氢淀粉为1.30MPa。除了改善疏水性之外，来自围场废物的软化木质素还有助于在加热的造粒期间将食物废物氢淀粉颗粒在颗粒基质中结合在一起。在研究中提出的结果表明存在于所有有利的结果条件，潜力可能会通过食品和院子废弃金制作的水炭燃烧所替代的大约11％的全球煤炭消费盟友。

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