| 煤热解挥发分还原NO的反应过程分析 |
| |
| 引用本文： | 刘栗,邱朋华,吴少华.煤热解挥发分还原NO的反应过程分析[J].工程热物理学报,2010(2). |
| |
| 作者姓名： | 刘栗 邱朋华 吴少华 |
| |
| 作者单位： | 哈尔滨工业大学457信箱燃烧工程研究所; |
| |
| 基金项目： | 国家自然科学基金资助项目(No.50706011);;国家重点基础研究发展计划(No.2006CB200303) |
| |
| 摘 要： | 采用详细的化学反应动力学机理对烟煤快速热解挥发分气体还原NO过程进行了数值模拟.根据实际反应条件确定模拟条件为0.1 MPa,1273～1573 K,煤质为准格尔烟煤。首先应用FG-DVC模型模拟得到了热解条件下的气体成分和含量,然后将该气体作为再燃燃料,选取化学当量比为0.6、1.0和1.2进行还原NO的计算.通过敏感性分析和生成速率分析,发现了控制NO生成和还原的关键步骤.只有CH_3、N_2O、NH_i、HCN和H_2CN才可以将NO还原成N_2。
|
| 关 键 词： | 再燃 NO 热解 反应机理 |
ANALYSIS OF NO REDUCTION MECHANISM BY VOLATILES FROM COAL PYROLYSIS |
| |
| LIU Li QIU Peng-Hua WU Shao-Hua.ANALYSIS OF NO REDUCTION MECHANISM BY VOLATILES FROM COAL PYROLYSIS[J].Journal of Engineering Thermophysics,2010(2). |
| |
| Authors: | LIU Li QIU Peng-Hua WU Shao-Hua |
| |
| Institution: | Combustion Engineering Research Institute;Harbin Institute of Technology;Harbin 150001;China |
| |
| Abstract: | The NO reduction by volatiles from bituminous coal pyrolysis was simulated by adopting detailed chemical kinetics mechanism.The reaction condition was determined under 0.1MPa and 1273-1573 K,and the coal is Zhunger bituminous coal.FG-DVC was first adopted to determine the composition and the contents of the volatiles from coal pyrolysis.Then NO reduction was simulated under the stoichiometric ratio of 0.6,1.0 and 1.2 respectively,by using the volatiles from the pyrolysis calculation.The key steps of NO form... |
| |
| Keywords: | reburning NO pyrolysis reaction mechanism |
| 本文献已被 CNKI 等数据库收录！ |
