Hydrochar Generation from Hydrothermal Carbonization of Organic Wastes

2018 4th International Conference on Environment and Renewable Energy

生态环境科学;能源学

Kantakanit, P.^1 ; Tippayawong, N.^1 ; Koonaphapdeelert, S.^2 ; Pattiya, A.^3

Department of Mechanical Engineering, Chiang Mai University, Chiang Mai

50200, Thailand^1

Energy Research and Development Institute - Nakornping, Chiang Mai University, Chiang Mai

50100, Thailand^2

Department of Mechanical Engineering, Mahasarakham University, Mahasarakham

44150, Thailand^3

关键词: Heating value;    High moisture contents;    Hydrothermal carbonization;    Organic wastes;    Residence time;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/159/1/012001/pdf
DOI  :  10.1088/1755-1315/159/1/012001

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Organic wastes from leftover food contributes to a large fraction of municipal solid waste. Because of its high moisture content, it is not suitable to be processed in a conventional way of burning. This study is interested in the possibility to apply hydrothermal carbonization (HTC) process to organic wastes. The objective was to study characteristics of HTC products as a function of temperature and residence time (180-250°C and 1-6 h). Samples of organic waste from discarded foods were processed in a HTC reactor. From the result of hydrochar analysis, it was shown that highest heating value and energy densification were 30 MJ/kg and 1.80 respectively, at 250°C and 3 h. The aqueous solution was found to contain minor concentration of fertiliser nutrients. These products may be used as fuel and chemicals as well as applications in agriculture. It was confirmed that valuable products can be generated from organic waste using hydrothermal carbonization.