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Hydrothermal carbonization of biogenic municipal waste for biofuel production
Biomass Conversion and Biorefinery ( IF 4 ) Pub Date : 2021-04-02 , DOI: 10.1007/s13399-021-01437-6
A. K. M. Kazi Aurnob , Assame Arnob , Kazi Bayzid Kabir , Md. Saiful Islam , Md. Mominur Rahman , Kawnish Kirtania

Biogenic municipal waste (BMW) constitutes a major fraction of municipal solid waste in Bangladesh. Hydrothermal carbonization (HTC) can provide a sustainable solution to the increasing generation of BMW by converting it to biofuel feedstock. This study evaluates the fuel properties, reaction yields, and morphology of solid product (i.e., hydrochar) derived via HTC of BMW obtained directly from a landfill in Bangladesh. A partial factorial design was employed over two independent levels of variation for reaction temperature (190 and 220oC), three independent levels of variation for residence time (20, 30, and 40 min), and water loading (70, 80, and 90%). Multivariate analysis was performed to understand the correlation among the dependent and independent variables of HTC experiments. Higher heating value (HHV) of the produced hydrochars showed that high-quality solid biofuel (with up to 15.6 MJ/kg) could be produced from BMW. Empirical models have been developed based on the experimental data to predict product yield and HHV of hydrochars; the models were of acceptable accuracy considering the inhomogeneity of the waste feedstock.



中文翻译:

用于生物燃料生产的生物垃圾的水热碳化

生物源性城市垃圾(BMW)构成孟加拉国城市固体垃圾的主要部分。水热碳化(HTC)通过将BMW转化为生物燃料原料,可以为日益增长的BMW提供可持续的解决方案。这项研究评估了直接从孟加拉国的一个垃圾填埋场获得的,通过宝马HTC衍生的固体产物(即水煤)的燃料性质,反应产率和形态。在反应温度的两个独立变化水平上采用了部分因子设计(190和220 oC),停留时间(20、30和40分钟)和水负荷(70%,80%和90%)三个独立的变化水平。进行多变量分析以了解HTC实验的因变量和自变量之间的相关性。所产生的碳氢化合物的较高的热值(HHV)表明,宝马可以生产高质量的固体生物燃料(最高15.6 MJ / kg)。根据实验数据建立了经验模型,以预测水煤的产品产量和HHV。考虑到废物原料的不均匀性,模型的准确性是可以接受的。

更新日期:2021-04-02
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