| NO在分子筛ZSM-5催化剂上催化氧化动力学研究 |
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| 引用本文： | 李玉芳,刘华彦,黄海凤,卢晗锋,陈银飞.NO在分子筛ZSM-5催化剂上催化氧化动力学研究[J].中国环境科学,2010,30(2):161-166. |
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| 作者姓名： | 李玉芳 刘华彦 黄海凤 卢晗锋 陈银飞 |
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| 作者单位： | 浙江工业大学化学工程与材料学院,绿色化学合成技术国家重点实验室培育基地,浙江,杭州,310014 |
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| 摘 要： | 研究了常温下NO在疏水型高硅分子筛ZSM-5上的氧化反应.结果发现,NO在分子筛ZSM-5表面氧化的同时,伴随着明显的吸附过程,待吸附饱和后释放出NO2.相比于活性炭,高硅分子筛ZSM-5上NO氧化受水汽影响较小,303K饱和湿气下,NO稳态转化率只比干气下降低6%.在排除内、外扩散影响的条件下,于等温积分反应器中研究了稳定阶段NO氧化的本征动力学,根据不同温度下X～W/FA0及NO分压数据,计算了反应速率,建立简化的动力学模型并获得了反应速率方程,结果表明其拟合复相关系数较高.
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| 关 键 词： | 分子筛ZSM-5 疏水性 常温 NO氧化 本征动力学 |
| 收稿时间： | 2009-06-11; |
Performance and intrinsic kinetics of molecular sieves ZSM-5 in NO catalytic oxidation |
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| LI Yu-fang,LIU Hua-yan,HUANG Hai-feng,LU Han-feng,CHEN Yin-fei.Performance and intrinsic kinetics of molecular sieves ZSM-5 in NO catalytic oxidation[J].China Environmental Science,2010,30(2):161-166. |
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| Authors: | LI Yu-fang LIU Hua-yan HUANG Hai-feng LU Han-feng CHEN Yin-fei |
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| Institution: | LI Yu-fang,LIU Hua-yan,HUANG Hai-feng,LU Han-feng,CHEN Yin-fei(State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology,College of Chemical Engineering , Materials Science,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | The oxidation of NO catalyzed by silicon-rich molecular sieves ZSM-5 with strong hydrophobicity at ambient temperature was investigated.The experimental results showed that NO was oxidized to NO2,which adsorbed on ZSM-5 surface and desorbed after saturation.Water vapor concentration in the NOx waste gas did not have significant effect on NO oxidation using ZSM-5,as opposed to that using activated carbon.The steady-state NO conversion in saturated wet gas decreased slightly by 6% compared to that in the dry ... |
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| Keywords: | molecular sieves ZSM-5 ambient temperature: hydrophobie NO oxidation intrinsic kinetics |
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