典型文献
Enhancing the energy potential of food waste digestate via catalytic co-hydrothermal treatment: The pyrolysis and com-bustion performance of hydrochar
文献摘要：
Catalytic hydrothermal treatment is considered one of the most promising technologies for recovering energy from carbonaceous wastes. In so doing, it facilitates the realization of waste-to-energy and resource utilization efforts. In this study, hydrochar was prepared from food waste digestate and wood waste via catalytic co-hydrothermal treatment us-ing potassium carbonate (K2CO3) and sodium carbonate (Na2CO3) as alkali catalysts. Based on the physicochemical prop-erties of hydrochar, including proximate analysis, element distribution, high heating value (HHV), surface functional groups, and morphology, the gaseous products of pyrolysis and the combustion performance of hydrochar were further in-vestigated using TG-FTIR-MS and TG-DSC, respectively. In addition, the hydrochar combustion kinetics and thermody-namics were probed. Specifically, the hydrochar obtained from Na2CO3 catalysis (HC-Na) demonstrated a higher heating value (26.85 MJ·kg?1) with higher calcium retention, while the hydrochar obtained from K2CO3 catalysis (HC-K) had a greater number of functional groups and larger carbon content. Moreover, the pyrolysis gaseous products of hydrochar were rich in hydrocarbons. HC-K exhibited better comprehensive combustion performance with the activation energy (Ea) values of 79.32 kJ·mol?1 and 67.91 kJ·mol?1 using the Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods, respect-ively. These results provide a prospect for enhancing the comprehensive utilization of carbonaceous solid waste through catalytic co-hydrothermal treatment.
文献关键词：
中图分类号：
作者姓名：
Xiefei Zhu;Zejun Luo
作者机构：
Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China
文献出处：
引用格式：
[1]Xiefei Zhu;Zejun Luo-.Enhancing the energy potential of food waste digestate via catalytic co-hydrothermal treatment: The pyrolysis and com-bustion performance of hydrochar)[J].中国科学技术大学学报,2022(07):20-28
A类：
digestate
B类：
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AB值：
0.522408
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