Conversion of high-ash coal under steam and CO2 gasification conditions
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- 作者：G. Arandaa ; aranda@ecn.nl" class="auth_mail" title="E-mail the corresponding author ; A.J. Grootjesa ; C.M. van der Meijdena ; A. van der Drifta ; D.F. Guptab ; R.R. Sondeb ; S. Poojarib ; C.B. Mitrab
- 关键词：High-ash coal ; Steam gasification ; CO2 gasification ; Kinetics ; Conversion ; Reactivity ; TGA ; Fluidised bed
- 刊名：Fuel Processing Technology
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：141
- 期：part_P1
- 页码：16-30
- 全文大小：1684 K
文摘
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Conversion and reactivity of Indian high-ash coal under CO2 and steam gasification conditions.
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CO2 gasification: reaction order b ~ 0.6 at 850–900 °C; steam gasification: b ~ 0–1.1, b increasing with T.
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Activation energy: 164–216 kJ/mol for CO2 gasification, 194–204 kJ/mol for steam gasification.
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TGA vs. FB: differences in coal size, heating rate, inhibition, and fluid-dynamics. Overall effect: shift in reaction regime.
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Operation under realistic FB conditions: equivalent effect to a decrease in temperature under TGA conditions.