改性MFI分子筛对碳氢排放物吸附性能研究

邓元望; 尹亮; 韩卫; 刘华伟

doi:10.13433/j.cnki.1003-8728.2015.0622

改性MFI分子筛对碳氢排放物吸附性能研究

doi: 10.13433/j.cnki.1003-8728.2015.0622

邓元望^1,2,
尹亮^1,2,
韩卫^1,2,
刘华伟^1,2

1.
湖南大学汽车车身先进设计制造国家重点实验室, 长沙 410082;
2.
湖南大学机械与运载工程学院, 长沙 410082

详细信息

作者简介:
邓元望（1967-），副教授，研究方向为发动机排放及控制，yl88222@126.com

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- 被引次数: 0
出版历程
- 收稿日期: 2013-08-11
- 刊出日期: 2015-06-05

Analyzing Effects of Modified MFI Zeolite on Adsorption Performance of Hydrocarbon Emissions

1.
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China;
2.
College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China

摘要

摘要: 为了得到具有高效吸附性能的分子筛，以柴油机冷启动过程两种主要碳氢化合物为探针分子，利用蒙特卡洛分子模拟的方法，通过对MFI分子筛进行改性对HC化合物的吸附能力进行了研究。结果表明：改性之后的MFI分子筛对丙烯、乙烯的吸附量均有明显的增加，但对于乙烯的吸附效果更显著的。研究发现：随着硅铝比的减小，丙烯的吸附量随着温度的升高先减小再增大，而乙烯的吸附量则呈现逐渐增大的趋势，但总的来说，在硅铝比为23时分子筛对乙烯和丙烯的吸附量达到最大。
- 柴油机冷启动 /
- 碳氢排放物 /
- MFI分子筛 /
- 蒙特卡洛分子模拟 /
- 吸附
Abstract: In order to obtain the MFI zeolite that has highly efficient adsorption properties, the Monte Carlo simulation and the hydrocarbon emissions in diesel cold start were used to simulate the effects of modified MFI zeolite on its adsorption performance. The experimental results demonstrate that the adsorption performances of both propylene and ethylene increase significantly, but the adsorption performance of ethylene is better. The study shows that with the decrease of the silica alumina ratio, the adsorption performance of propylene first decreases and then increases with the temperature rise and the adsorption performance of ethylene shows, on the whole, a trend of gradual increase when silica alumina ratio is 23, which is the largest adsorption performance of ethylene and propylene.
- adsorption /
- adsorption performance /
- alumina /
- aluminum /
- computer simulation

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参考文献(17)

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