Synergistic effects in co-combusting of hydrochar derived from sewage sludge with different-rank coals

ZHUANG Xiu-zheng; SONG Yan-pei; ZHAN Hao; YIN Xiu-li; WU Chuang-zhi

Volume 46 Issue 12

Dec. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(12): 1437-1446

ZHUANG Xiu-zheng, SONG Yan-pei, ZHAN Hao, YIN Xiu-li, WU Chuang-zhi. Synergistic effects in co-combusting of hydrochar derived from sewage sludge with different-rank coals[J]. Journal of Fuel Chemistry and Technology, 2018, 46(12): 1437-1446.

Citation:

ZHUANG Xiu-zheng, SONG Yan-pei, ZHAN Hao, YIN Xiu-li, WU Chuang-zhi. Synergistic effects in co-combusting of hydrochar derived from sewage sludge with different-rank coals[J]. Journal of Fuel Chemistry and Technology, 2018, 46(12): 1437-1446.

Citation:

ZHUANG Xiu-zheng, SONG Yan-pei, ZHAN Hao, YIN Xiu-li, WU Chuang-zhi. Synergistic effects in co-combusting of hydrochar derived from sewage sludge with different-rank coals[J]. Journal of Fuel Chemistry and Technology, 2018, 46(12): 1437-1446.

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Synergistic effects in co-combusting of hydrochar derived from sewage sludge with different-rank coals

ZHUANG Xiu-zheng^{1, 2},
SONG Yan-pei^{1, 2},
ZHAN Hao^{2, 3},
YIN Xiu-li^{1
,
,},
WU Chuang-zhi¹

1.
Key Laboratory of Renewable Energy, CAS, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Key Laboratory of Organic Geochemistry, CAS, Guangdong Key Laboratory of Environmental Protection and Resource Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China

Funds:

the National Key R & D Project 2016YFE0203300

the Guangdong Natural Science Foundation 2017B030308002

the Guangzhou Science and Technology Project 201803030006

More Information

Corresponding author: YIN Xiu-li, E-mail: xlyin@ms.giec.ac.cn
Received Date: 2018-08-06
Rev Recd Date: 2018-09-19

Available Online: 2021-01-23

Publish Date: 2018-12-10

Abstract

Abstract

Differences on organic/inorganic structures and fuel properties between sewage sludge-derived hydrochar and different-rank coals were investigated and compared with the help of FT-IR, XRF and XRD technologies. Meanwhile, the combustion behavior under various blending ratio and its synergistic effects was identified via TG and deviation analysis. The results demonstrates that the organic structures and combustion behaviors of hydrochar are similar to those of coals, which not only improves the combustion properties of sewage sludge, but also enhances the synergistic effects in co-combustion of hydrochar and coals. During the co-combustion process, light volatiles and (alkaline) alkaline-earth metals in hydrochar could accelerate the weight loss rate for coals, reaching 4.4%-16.1%, 1.9%-9.4% and 4.8%-12.1% for lignite, bitumite and anthracite, respectively. In general, the blends with 30% hydrochar and 70% lignite or 50% hydrochar and 50% lignite are better than other blends in terms of comprehensive combustion evolutions.
- sewage sludge,
- hydrothermal carbonization,
- coal,
- co-combustion,
- synergistic effects

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References(24)

References

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