A Research Note on the Adsorption of CO2 and N2

›› 2011, Vol. 19 ›› Issue (5): 733-737.

A Research Note on the Adsorption of CO₂ and N₂

张中正¹, 阮红证², 周亚平², 苏伟¹, 孙艳¹, 周理¹

1. Chemical Engineering Research Center, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China;
2. Department of Chemistry, School of Science Tianjin University, Tianjin 300072, China

收稿日期:2010-06-02 修回日期:2011-08-13 出版日期:2011-10-28 发布日期:2011-10-28
通讯作者: ZHOU Li,E-mail:zhouli@tju.edu.cn

A Research Note on the Adsorption of CO₂ and N₂

ZHANG Zhongzheng¹, RUAN Hongzheng², ZHOU Yaping², SU Wei¹, SUN Yan¹, ZHOU Li¹

1. Chemical Engineering Research Center, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China;
2. Department of Chemistry, School of Science Tianjin University, Tianjin 300072, China

Received:2010-06-02 Revised:2011-08-13 Online:2011-10-28 Published:2011-10-28

摘要/Abstract

摘要： Experiments were made for the adsorption of CO₂ and N₂ on typical adsorbents to investigate the effects of porous structure and surface affinity of adsorbents as well as those of adsorption temperature and pressure that might cause the variation of adsorption mechanism. It is shown that polar surface tends to enlarge the adsorption difference between CO₂ and N₂, and the difference is more sensitive to temperature than the adsorbents with non-polar surface. The adsorbents with non-polar surface are not much sensitive to the effect of water vapor, though the water vapor interferes the separation remarkably. The separation coefficient linearly increases with the micro-pore volume per unit surface area of activated carbons, but no rule is shown on mesoporous silicon materials. The function of adsorption mechanism on the separation is not as much as expected.

关键词: adsorption, CO₂, N₂, comparison

Abstract: Experiments were made for the adsorption of CO₂ and N₂ on typical adsorbents to investigate the effects of porous structure and surface affinity of adsorbents as well as those of adsorption temperature and pressure that might cause the variation of adsorption mechanism. It is shown that polar surface tends to enlarge the adsorption difference between CO₂ and N₂, and the difference is more sensitive to temperature than the adsorbents with non-polar surface. The adsorbents with non-polar surface are not much sensitive to the effect of water vapor, though the water vapor interferes the separation remarkably. The separation coefficient linearly increases with the micro-pore volume per unit surface area of activated carbons, but no rule is shown on mesoporous silicon materials. The function of adsorption mechanism on the separation is not as much as expected.

Key words: adsorption, CO₂, N₂, comparison

张中正, 阮红证, 周亚平, 苏伟, 孙艳, 周理. A Research Note on the Adsorption of CO₂ and N₂[J]. , 2011, 19(5): 733-737.

ZHANG Zhongzheng, RUAN Hongzheng, ZHOU Yaping, SU Wei, SUN Yan, ZHOU Li. A Research Note on the Adsorption of CO₂ and N₂[J]. , 2011, 19(5): 733-737.

参考文献

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A Research Note on the Adsorption of CO₂ and N₂

A Research Note on the Adsorption of CO₂ and N₂

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