| CaO对神木烟煤煤焦-CO_2催化气化反应性及动力学影响研究 |
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| 引用本文： | 陈鸿伟,武振新,高松.CaO对神木烟煤煤焦-CO_2催化气化反应性及动力学影响研究[J].煤化工,2013,41(1):34-37,60. |
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| 作者姓名： | 陈鸿伟 武振新 高松 |
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| 作者单位： | 华北电力大学,河北保定,071003 |
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| 摘 要： | 在常压、850℃-1 000℃气化温度、固定床上,研究了催化剂CaO含量对神木烟煤煤焦-CO2气化反应的影响,通过改进随机核化模型来计算煤焦气化动力学参数。实验表明:CaO的存在对煤焦-CO2气化反应有明显的催化作用。在850℃-950℃气化温度下,CaO质量分数在15%左右催化效果最好;在1 000℃气化温度下,CaO质量分数在20%左右催化效果最好;添加了催化剂的煤焦样品,指前因子和活化能之间存在一定的补偿效应。
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| 关 键 词： | 煤焦 CO2 催化气化 反应性 动力学 CaO |
Study on the Effect of CaO on the Reactivity and Kinetics of Catalytic Gasification of the Shenmu Bituminous Coal Char and CO2 |
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| Chen Hongwei
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Wu Zhenxin
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Gao Song.Study on the Effect of CaO on the Reactivity and Kinetics of Catalytic Gasification of the Shenmu Bituminous Coal Char and CO2[J].Coal Chemical Industry,2013,41(1):34-37,60. |
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| Authors: | Chen Hongwei Wu Zhenxin Gao Song |
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| Affiliation: | (North China Electric Power University,Baoding Hebei 071003,China) |
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| Abstract: | The gasification characteristics of coal char, which comprises of different at the temperature of 850 ℃-1 000 ℃. A modified volumetric-reaction model was used to fractions of CaO, was examined evaluate the kinetic parameters Results show that the catalyst of CaO has a significant catalytic activity on the gasification of coal char. At the temperature of 850 ℃-950 ℃, the sample containing 15% CaO has the best catalytic performance; but when the temperature is 1 000 ℃, the sample containing 20% CaO has the best catalytic performance; kinetic compensation relationship existed between the frequency factor and activation energy, i.e., the relation of lnA （A is frequency factor） and E （the activation energy） is linear. |
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| Keywords: | coal char C02 catalytic gasification reactivity kinetic analysis CaO |
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