Fusion characteristics of blended ash from Changzhi coal and biomass

MA Xiu-wei; LI Feng-hai; MA Ming-jie; FANG Yi-tian

Volume 46 Issue 2

Feb. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(2): 129-137

MA Xiu-wei, LI Feng-hai, MA Ming-jie, FANG Yi-tian. Fusion characteristics of blended ash from Changzhi coal and biomass[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 129-137.

Citation:

MA Xiu-wei, LI Feng-hai, MA Ming-jie, FANG Yi-tian. Fusion characteristics of blended ash from Changzhi coal and biomass[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 129-137.

MA Xiu-wei, LI Feng-hai, MA Ming-jie, FANG Yi-tian. Fusion characteristics of blended ash from Changzhi coal and biomass[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 129-137.

Citation:

MA Xiu-wei, LI Feng-hai, MA Ming-jie, FANG Yi-tian. Fusion characteristics of blended ash from Changzhi coal and biomass[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 129-137.

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Fusion characteristics of blended ash from Changzhi coal and biomass

MA Xiu-wei^{1, 2},
LI Feng-hai^{1, 2, 3
,
,},
MA Ming-jie¹,
FANG Yi-tian³

1.
School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2.
School of Chemistry and Chemical Engineering, Heze University, Heze 274000, China
3.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Funds:

the Natural Science Foundation of Shandong Province ZR2014BM014

Strategic Priority Research Program of the Chinese Academy of Sciences XDA07050103

Youth Natural Science Foundation of Shanxi Province Y5SJ1A1121

More Information

Corresponding author: LI Feng-hai, Tel: 0530-5668162, E-mail: hzlfh@163.com
Received Date: 2017-08-21
Rev Recd Date: 2017-12-11

Available Online: 2021-01-23

Publish Date: 2018-02-10

Abstract

Abstract

The blended ash fusion characteristics and its fusion mechanism of biomasses (peanut husk (PH) and rice husk (RH)) and Changzhi (CZ) coal with high melting point (MP) were investigated by ash fusion temperature (AFT) detector, X-ray fluorescence, X-ray diffraction, and FactSage software. The results show that the AFTs of CZ ash mixtures decrease with addition of biomass ash, and the fluxing effect of PH ash is better than that of RH ash, which mainly depends on their ash chemical compositions and elements existing form. The formations of low MP minerals anorthite, albite, and leucite are responsible for the decrease in AFT of PH and CZ mixtures. With RH ash addition, feldspar and eutectics are generated, resulting in a decrease in AFT of their mixtures. In the presence of Na₂O, CaO, or K₂O, SiO₂ and Al₂O₃ would firstly react with them to form low MP aluminosilicate from the perspective of thermodynamic calculation, inhibiting formation of high MP mullite. The mixed ash fusion process could be divided into two major stages:fusion of K-and Ca-bearing minerals, respectively.
- Changzhi coal,
- biomass,
- blended ash,
- ash fusion temperature,
- mineralogical property

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References(25)

References

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