Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues
With the continuous reduction in fossil energy reserves and the increasingly prominent negative impacts on the environment, the search for sustainable alternative materials has become an urgent task. Biomass-based char has attracted much attention in the field of environmental protection, due to its...
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/14/3646 |
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| author | Zhiqiang Xu Wenyu Ren Shiliang Wu Rui Xiao |
| author_facet | Zhiqiang Xu Wenyu Ren Shiliang Wu Rui Xiao |
| author_sort | Zhiqiang Xu |
| collection | DOAJ |
| description | With the continuous reduction in fossil energy reserves and the increasingly prominent negative impacts on the environment, the search for sustainable alternative materials has become an urgent task. Biomass-based char has attracted much attention in the field of environmental protection, due to its wide-ranging and renewable raw materials. Hydrothermal carbonization and torrefaction carbonization, as two important biomass carbonization processes, each have their own advantages. This study focuses on the millions of tons of Chinese medicine residue waste generated in China every year. Four common Chinese medicine residues, Shanyao (Chinese yam), Suoyang (<i>Cynomorium songaricum</i>), Yujin (<i>Curcuma aromatica</i>), and Xueteng (<i>Spatholobus suberectus</i>), were selected and treated by hydrothermal carbonization and torrefaction carbonization processes at temperatures of 240 °C, 260 °C, and 280 °C. Through analysis techniques such as Fourier-Transform Infrared Spectroscopy, X-Ray Diffraction, and Scanning Electron Microscopy, the changes in the crystal structure, chemical functional groups, and microscopic morphology of the carbonized products were deeply studied, and the carbon yield was measured. The research aims to reveal the carbonization laws of Chinese medicine residues, provide a scientific basis for their efficient resource utilization, and help promote the development of biomass-based carbon materials in the field of environmentally friendly materials, alleviating energy and environmental pressures. |
| format | Article |
| id | doaj-art-0e6fd2a01e844f52bcd0b0cd04074e9a |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-0e6fd2a01e844f52bcd0b0cd04074e9a2025-08-20T03:58:27ZengMDPI AGEnergies1996-10732025-07-011814364610.3390/en18143646Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine ResiduesZhiqiang Xu0Wenyu Ren1Shiliang Wu2Rui Xiao3Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaKey Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaKey Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaKey Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaWith the continuous reduction in fossil energy reserves and the increasingly prominent negative impacts on the environment, the search for sustainable alternative materials has become an urgent task. Biomass-based char has attracted much attention in the field of environmental protection, due to its wide-ranging and renewable raw materials. Hydrothermal carbonization and torrefaction carbonization, as two important biomass carbonization processes, each have their own advantages. This study focuses on the millions of tons of Chinese medicine residue waste generated in China every year. Four common Chinese medicine residues, Shanyao (Chinese yam), Suoyang (<i>Cynomorium songaricum</i>), Yujin (<i>Curcuma aromatica</i>), and Xueteng (<i>Spatholobus suberectus</i>), were selected and treated by hydrothermal carbonization and torrefaction carbonization processes at temperatures of 240 °C, 260 °C, and 280 °C. Through analysis techniques such as Fourier-Transform Infrared Spectroscopy, X-Ray Diffraction, and Scanning Electron Microscopy, the changes in the crystal structure, chemical functional groups, and microscopic morphology of the carbonized products were deeply studied, and the carbon yield was measured. The research aims to reveal the carbonization laws of Chinese medicine residues, provide a scientific basis for their efficient resource utilization, and help promote the development of biomass-based carbon materials in the field of environmentally friendly materials, alleviating energy and environmental pressures.https://www.mdpi.com/1996-1073/18/14/3646Chinese medicine residueshydrothermal carbonizationtorrefaction carbonizationbiomass-based charresource utilization |
| spellingShingle | Zhiqiang Xu Wenyu Ren Shiliang Wu Rui Xiao Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues Energies Chinese medicine residues hydrothermal carbonization torrefaction carbonization biomass-based char resource utilization |
| title | Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues |
| title_full | Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues |
| title_fullStr | Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues |
| title_full_unstemmed | Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues |
| title_short | Comparison of the Characteristics of Hydrochar and Torrefied-Char of Traditional Chinese Medicine Residues |
| title_sort | comparison of the characteristics of hydrochar and torrefied char of traditional chinese medicine residues |
| topic | Chinese medicine residues hydrothermal carbonization torrefaction carbonization biomass-based char resource utilization |
| url | https://www.mdpi.com/1996-1073/18/14/3646 |
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