Relationship Between Toluene Adsorption Capacity and Pore Structure of Activated Carbon

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Abstract Characterization of four activated carbons (which were chosen from four companies) were tested by nitrogen adsorption, toluene adsorption experiments were carried out at the concentration 7.537 g/m³, temperature 298.15 K. The adsorption of toluene can be correlated with pore volume and specific surface area of activated carbon. Linearregression analysis between the pore volume of different aperture and the adsorption capacity for toluene was conducted and checked by linear correlation R. The results showed that: Nitrogen isotherm adsorption indicated that these four activated carbons all had microporous adsorption characteristics; both pore structure and specific surface area of activated carbon could directly influence toluene adsorption capacity, toluene adsorption capacity increased with pore volume and specific surface area of activated carbons. Linear relationship between pore volume and toluene adsorption capacity was obvious, and the linear dependency Rwas the biggest when aperture was 0.8—2.4 nm.

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	Articles by authors
	LIU 　Wei
	LI Li-Qing
	LIU 　Zheng
	SUN 　Zheng
	YAO Xiao-Long
	GU Qing-Wei
	SHI 　Rui

Keywords： activated carbon toluene adsorption capacity linear correlation pore structure molecular diameter

Fund:

国家自然科学基金（20976200）

Cite this article:

LIU 　Wei, LI Li-Qing, LIU 　Zheng, SUN 　Zheng, YAO Xiao-Long, GU Qing-Wei, SHI 　Rui.Relationship Between Toluene Adsorption Capacity and Pore Structure of Activated Carbon[J] Chemcial Industry and Engineering, 2011,V28(4): 5-10

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