| 煤炭地下气化过程中煤层热解DAE模型的研究 |
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| 引用本文： | 彭丰成,梁新星,李玉兰,柳迎红. 煤炭地下气化过程中煤层热解DAE模型的研究[J]. 煤炭转化, 2007, 30(2): 28-30,56 |
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| 作者姓名： | 彭丰成 梁新星 李玉兰 柳迎红 |
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| 作者单位： | 中国矿业大学化学与环境工程学院,100083,北京 |
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| 摘 要： | 煤炭地下气化过程中,干馏干燥区的煤层在热传导及气化通道中高温煤气的热作用下发生热解反应,并析出热解煤气.该热解煤气在煤层的孔隙裂隙中扩散渗流,对煤层的渗透率(物理特性)及出口煤气热值组分都具有重要意义.在分析煤层热解特性的基础上,运用分布活化能模型(DAEM)的理论,建立了煤炭地下气化的热解动力学模型.运用该模型,通过热重实验,计算得到了大雁褐煤的热解动力学参数及活化能变化曲线.
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| 关 键 词： | 煤炭地下气化 热解 DAE模型 煤炭地下气化 气化过程 煤层 热解动力学参数 热解动力学模型 研究 UNDERGROUND COAL GASIFICATION PROCESS PYROLYSIS MODEL 变化曲线 分布活化能模型 褐煤 大雁 计算 热重实验 理论 DAEM 运用 热解特性 |
| 修稿时间： | 2006-12-052007-01-20 |
STUDY ON THE DAE MODEL OF PYROLYSIS IN THE PROCESS OF UNDERGROUND COAL GASIFICATION |
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| Peng Fengcheng,Liang Xinxing,Li Yulan,Liu Yinghong. STUDY ON THE DAE MODEL OF PYROLYSIS IN THE PROCESS OF UNDERGROUND COAL GASIFICATION[J]. Coal Conversion, 2007, 30(2): 28-30,56 |
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| Authors: | Peng Fengcheng Liang Xinxing Li Yulan Liu Yinghong |
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| Affiliation: | College of Chemical and Enviroment Engineering ,China University of Mining and Technology, 100083 Beijing |
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| Abstract: | During the UCG process,as the coal seams in the dry and distillation zone were hated by the high temperatured gas in the gasification and solid heat conduction,then occured pyrolysis reaction, producing pyrolysis gas and the gas transfered through the coalbed, and coal structure changed at the same time. In this paper,based on the characteristic analysis of pyrolysis in the dry and distillation zone of UCG process,the pyrolysis dynamic model is established with the distributed activation energy model theory. With this model,the Dayan brown coal was stud- ied,and the model parameters and activation energy curves were got through the thermogravity experiment. |
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| Keywords: | underground coal gasification pyrolysis DAE model |
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