Adsorption of carbon dioxide by coconut activated carbon modified with Cu/Ce

被引：28

作者：

Li Fenrong ^{[1
]}

Yi Honghong ^{[1
]}

Tang Xiaolong ^{[1
]}

Ning Ping ^{[1
]}

Yu Qiongfen ^{[1
]}

Kang Dongjuan ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Coll Environm Sci & Engn, Kunming 650093, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2010年 / 28卷

关键词：

adsorption; CO2; capture; Cu; Ce; rare earths; SEQUESTRATION; CAPTURE; CO2;

D O I：

10.1016/S1002-0721(10)60375-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of the coconut activated carbons (CAC) based absorbents modified with Cu and Ce (Cu/CAC, Cu/Ce/CAC) were prepared by impregnation technology for carbon dioxide capture. The adsocrption equilibriums of CO2 on Cu/CAC and Cu/Ce/CAC were measured. The results showed that the adsorption capacity of CO2 onto the activated carbon modified with Cu/Ce increased with the decreasing temperature in the same pressure. The adsorption capacity of CO2 on Cu/CAC was higher than that of the blank CAC, and compared with the Cu/CAC, the adsorption capacity of CO2 of Cu/Ce/CAC with the mass ratio of Cu/Ce=30 was improved at 298 and 303 K. In addition, the adsorption equilibrium data for CO2 at various temperatures was fitted to Langmuir, Freundlich and D-R isotherm models. It was found that the D-R equation was the best model for fitting the adsorption data on Cu/Ce/CAC at different temperatures.

引用

页码：334 / 337

页数：4

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