| SCR 反应物理化学过程模型及验证 |
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| 引用本文： | 贾思峰,管斌,刘柯,李忠照,林赫,黄震.SCR 反应物理化学过程模型及验证[J].车用发动机,2016(5). |
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| 作者姓名： | 贾思峰 管斌 刘柯 李忠照 林赫 黄震 |
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| 作者单位： | 上海交通大学动力机械及工程教育部重点实验室,上海,200240 |
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| 摘 要： | 针对柴油机选择性催化还原（SCR）脱硝技术，建立了零维 SCR 反应器数学模型，并利用 VC ＋＋编写了仿真计算软件。通过小样台架试验测试了钒基催化剂在不同温度、空速、含氧量、NO2与 NO x 的摩尔比以及氨氮比条件下的 NO x 转化率，并与计算结果进行对比。结果表明，模型计算值与试验结果具有很好的一致性，低温条件下，空速越低，NO2与 NO x 的摩尔比越大，NO x 的转化率越高。
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| 关 键 词： | 选择性催化还原 数学模型 仿真 |
Physical and Chemical Process Model of SCR and Its Verification |
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| JIA Sifeng,GUAN Bin,LIU Ke,LI Zhongzhao,LIN He,HUANG Zhen.Physical and Chemical Process Model of SCR and Its Verification[J].Vehicle Engine,2016(5). |
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| Authors: | JIA Sifeng GUAN Bin LIU Ke LI Zhongzhao LIN He HUANG Zhen |
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| Abstract: | Based on SCR DeNO x technology of diesel engine ,a zero‐dimension mathematic model of SCR reactor was built and the calculation software was compiled with VC + + software .The catalyst conversion performances of vanadium‐based cat‐alyst under different temperatures ,space velocities ,oxygen contents ,NO2 /NO x molar ratios and NH3 /NO x ratios were in‐vestigated and compared with the calculated results .The results show that the calculated results agree well with the experimen‐tal results .At low temperature , smaller space velocity and larger NO2 /NO x molar ratio will lead to higher conversion efficiency of NO x . |
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| Keywords: | selective catalytic reduction(SCR) mathematic model simulation |
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