西安交通大学人居环境与建筑工程学院,西安,710049
网络首发:2013-05-10,
纸质出版:2013
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蔡建程, 董博, 刘艳华. SiO2颗粒对甲醛及NO的吸附特性研究[J]. 西安交通大学学报, 2013,47(5):126-130. DOI: 10.7652/xjtuxb201305023.
Adsorption of Formaldehyde and NO on SiO2 Particles[J]. 2013, 47(5): 126-130. DOI: 10.7652/xjtuxb201305023.
利用自行设计并搭建的流态化颗粒吸附性能实验台
对SiO
2
吸附甲醛和NO的特性进行了实验研究。结果显示:在无氧干态流动条件下
SiO
2
颗粒能够吸附空气中的甲醛和NO; 在实验条件(20~60 ℃)下
随着温度的升高
SiO
2
颗粒对甲醛的吸附能力增大
对NO的吸附能力增加不明显
说明对于不同的吸附质
SiO
2
颗粒表面的吸附规律及吸附机理均不同; 系统的循环流量对SiO
2
颗粒吸附甲醛及NO的能力影响不大; SiO
2
颗粒对甲醛的吸附能力高于对NO的吸附能力; 颗粒堆积可导致单位质量颗粒物对甲醛及NO的吸附能力下降。
On a self-designed fluidized adsorption bench
adsorption characteristics of SiO
2
particles for formaldehyde and NO are investigated experimentally. The results show that in oxygen-free and dry condition
SiO
2
particles are able to adsorb formaldehyde and NO. Within the range of temperature from 20 to 60 ℃
the absorption capacity of SiO
2
particles for formaldehyde is increased with temperature while that for NO is almost unchanged
indicating the adsorption rule and mechanism for these two pollutants are different. The circular flow rate of the particles exerts a slight influence on adsorption for formaldehyde and NO. In the experimental condition the adsorption capacity of SiO
2
for formaldehyde is greater than that for NO. Particles accumulation usually we
akens the adsorption capacity of SiO
2
.
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