Correlation mechanism between structure and gasification characteristics of typical municipal solid waste (MSW) disposable bamboo chopsticks hydrochar

ZHOU Zhi-chao; WANG Jiao-fei; BAI Yong-hui; LÜ Peng; SONG Xu-dong; SU Wei-guang; YU Guang-suo; DING Lu

doi:10.19906/j.cnki.JFCT.2022084

Volume 51 Issue 6

Jun. 2023

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Article Navigation > Journal of Fuel Chemistry and Technology > 2023 > 51(6): 718-728

ZHOU Zhi-chao, WANG Jiao-fei, BAI Yong-hui, LÜ Peng, SONG Xu-dong, SU Wei-guang, YU Guang-suo, DING Lu. Correlation mechanism between structure and gasification characteristics of typical municipal solid waste (MSW) disposable bamboo chopsticks hydrochar[J]. Journal of Fuel Chemistry and Technology, 2023, 51(6): 718-728. doi: 10.19906/j.cnki.JFCT.2022084

Citation:

ZHOU Zhi-chao, WANG Jiao-fei, BAI Yong-hui, LÜ Peng, SONG Xu-dong, SU Wei-guang, YU Guang-suo, DING Lu. Correlation mechanism between structure and gasification characteristics of typical municipal solid waste (MSW) disposable bamboo chopsticks hydrochar[J]. Journal of Fuel Chemistry and Technology, 2023, 51(6): 718-728. doi: 10.19906/j.cnki.JFCT.2022084

Citation:

ZHOU Zhi-chao, WANG Jiao-fei, BAI Yong-hui, LÜ Peng, SONG Xu-dong, SU Wei-guang, YU Guang-suo, DING Lu. Correlation mechanism between structure and gasification characteristics of typical municipal solid waste (MSW) disposable bamboo chopsticks hydrochar[J]. Journal of Fuel Chemistry and Technology, 2023, 51(6): 718-728. doi: 10.19906/j.cnki.JFCT.2022084

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Correlation mechanism between structure and gasification characteristics of typical municipal solid waste (MSW) disposable bamboo chopsticks hydrochar

doi: 10.19906/j.cnki.JFCT.2022084

1.
State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
2.
Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai 200237, China

Funds: The project was supported by National Key Research and Development Plan (2021YFE0108900)

Received Date: 2022-09-29
Accepted Date: 2022-11-08
Rev Recd Date: 2022-10-28

Available Online: 2022-11-16

Publish Date: 2023-06-15

Abstract

Abstract

Due to the complex composition, large fluctuation of material characteristics and low energy density of MSW, the gasification characteristics of its hydrochars are not well understood. Therefore, it is of great significance to study the gasification characteristics of single component hydrochars. In this paper, a typical component of MSW, disposable bamboo chopsticks (DBC), was used as raw material to study the effect of hydrothermal carbonization (HTC) conditions on the structural properties and gasification reaction characteristics of DBC hydrochars. The results showed that HTC improved the energy quality of DBC, the HHV of DBC-230-60 sample was 1.62 times of that of DBC, and H/C and O/C decreased from 1.57 and 0.76 of original sample to 1.00 and 0.33 of DBC-230-60. The results of characterization also demonstrate that the aromatization degree of hydrochar and hydrochar semicoke is higher than that of the DBC original one. The specific surface area of hydrochar is lower than that of DBC original sample, but hydrochar semicoke is higher than that of DBC original sample semicoke. Compared with hydrothermal time, hydrothermal temperature has the more significant effect on the structure and gasification reactivity of hydrochar. Higher hydrothermal temperature increases the aromatization degree of hydrochar and decreases the gasification reactivity of hydrochar. The gasification reactivity of hydrochar is worse than that of DBC original sample, which is mainly because the increase of the degree of semicoke arbulization of hydrochar has a greater negative effect on the gasification reactivity than the abundance of pore structure.
- MSW,
- hydrochar,
- gasification behavior,
- reactivity

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References(39)

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