Mechanism of La2O3 as combustion improver in blast furnace coal injection

La2O3 is a combustion improver suitable for burning pulverized coal in blast furnace. La2O3 forms the active species La3＋（CO-）3 that weakens the bridge adhesion of carbon structural units and alters the lattice structures, thus reducing the activation energy of the pulverized coal and accelerating t...

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Bibliographic Details
Published in:International journal of coal science & technology 2016-03, Vol.3 (1), p.47-52
Main Authors: Sun, Yanqin, Hu, Bing, Lü, Qing, Zhang, Shuhui
Format: Article
Language:English
Subjects:
Adhesion
Carbon
Coal
Combustion
Energy
Fossil Fuels (incl. Carbon Capture)
Furnaces
Geotechnical Engineering & Applied Earth Sciences
La2O3
Mineral Resources
Research Article
助燃剂
晶格结构
机理
活性物种
燃烧过程
结构单元
高炉喷煤
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Summary:La2O3 is a combustion improver suitable for burning pulverized coal in blast furnace. La2O3 forms the active species La3＋（CO-）3 that weakens the bridge adhesion of carbon structural units and alters the lattice structures, thus reducing the activation energy of the pulverized coal and accelerating the burning process. Research shows that La2O3 can form the active species La3＋（CO-）3, which weakens the bridge adhesion of carbon structural units and alters the lattice structures of the fixed carbon, hence decreasing the activation energy of the pulverized coal and accelerating the burning process.
ISSN:2095-8293
2198-7823
DOI:10.1007/s40789-016-0108-3