Hydrothermal Carbonization of Digestate Produced in the Biogas Production Process

被引：13
作者：
Mikusinska, Joanna [1 ]
Kuznia, Monika [1 ]
Czerwinska, Klaudia [1 ]
Wilk, Malgorzata [1 ]
机构：
[1] AGH Univ Sci & Technol, Dept Heat Engn & Environm Protect, 30 Mickiewicza Ave, PL-30059 Krakow, Poland
来源：
ENERGIES | 2023年 / 16卷 / 14期
关键词：
biogas; digestate; hydrochar; hydrothermal carbonization; biofuel; SEWAGE-SLUDGE; STRUCTURAL-PROPERTIES; HYDROCHAR PELLETS; OPTIMIZATION; TEMPERATURE; PERFORMANCE; ADSORPTION; STRATEGIES; FOOD;
D O I：
10.3390/en16145458
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In agricultural biogas plants, besides biogas, the by-product digestate is also produced. Due to its high moisture content and organic origin, it can successfully be applied in the hydrothermal carbonization process to avoid the fate of landfilling. This paper reviews the properties of agricultural digestate and its hydrothermal conversion (HTC) into hydrochar and process water. The type of feedstock and the parameters of the HTC process, such as temperature, pressure and residence time, affects the physical and chemical characteristics of hydrochar. Therefore, its possible application might be as a biofuel, fertilizer, soil improver, adsorber, or catalyst. In this paper, the properties of hydrochar derived from agricultural digestate are widely discussed.
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页数：18
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