多层吸附床层中活性炭对烷烃的吸附特性

doi:10.19286/j.cnki.cci.2023.01.037

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Abstract Adsorption performance on granular activated carbon for different n-alkanes in multilayer bed were investigated. It was obtained that the adsorption capacity increased obviously from 22 mg/g to 145 mg/g with the pollutant adjusted from C4 to C7, and the breakthrough time rose up from 5 min to 35 min. While the pollutant was adjusted from C7 to C8, the capacity got no change,but the breakthrough time decreased to 25 min. The research assumes that the adsorption capacity presents positive correlation with relative molecule weight, boil point and the polarizability, while it presents negative correlation with the saturated vapor pressure of liquid phase. The results indicate that when the major pollutant is alkane including C5- C8. The capacity of activated carbon can be used to the fullest in the multilayer bed constructed with 2 layers, while the gas is C4, the construction needs more layers.

Key words： activated carbon adsorption alkane volatile organic compounds adsorption capacity multilayer bed

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	Liu Long
	Xi Jingru

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Liu Long,Xi Jingru. Adsorption performance on granular activated carbon for alkanes in multilayer bed[J]. CCI, 2023, 46(1): 137-140，160..

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2023.01.037 OR http://www.mtyhg.com.cn/EN/Y2023/V46/I1/137

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