TY - JOUR
T1 - A simplified model of predicting coal reaction in a partial oxidation environment
AU - Chen, Wei Hsin
N1 - Funding Information:
The author wishes to express his gratitude to the National Science Council, Taiwan, ROC, and the Bureau of Energy, Ministry of Economic Affairs, Taiwan, ROC, for supporting this research. The author is also indebted to Professor T.L. Jiang for valuable discussion.
PY - 2007/5
Y1 - 2007/5
N2 - The partial oxidation of two different high-volatile pulverized coals in a drop tube furnace is investigated experimentally to simulate coal reactions in blast furnaces and entrained-bed gasifiers. A simplified model, without considering carbon content in residual particles, is also developed to predict the performance of coal reaction. The model is conducted based on the mass conservation of inert gas N2. The analyses suggest that, despite the proximate analyses of the two coals being similar, the carbon conversion ratio depends intrinsically on the nature of coal. It is also found that a higher carbon conversion ratio may result from a richer carbon dioxide generated, whereby the concentration of syngas does not increase accordingly. The developed model has provided a simple and fast method to aid analyzing the reactivity of coal employed in industrial furnaces.
AB - The partial oxidation of two different high-volatile pulverized coals in a drop tube furnace is investigated experimentally to simulate coal reactions in blast furnaces and entrained-bed gasifiers. A simplified model, without considering carbon content in residual particles, is also developed to predict the performance of coal reaction. The model is conducted based on the mass conservation of inert gas N2. The analyses suggest that, despite the proximate analyses of the two coals being similar, the carbon conversion ratio depends intrinsically on the nature of coal. It is also found that a higher carbon conversion ratio may result from a richer carbon dioxide generated, whereby the concentration of syngas does not increase accordingly. The developed model has provided a simple and fast method to aid analyzing the reactivity of coal employed in industrial furnaces.
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U2 - 10.1016/j.icheatmasstransfer.2007.02.012
DO - 10.1016/j.icheatmasstransfer.2007.02.012
M3 - Article
AN - SCOPUS:34247591434
SN - 0735-1933
VL - 34
SP - 623
EP - 629
JO - International Communications in Heat and Mass Transfer
JF - International Communications in Heat and Mass Transfer
IS - 5
ER -