Characterization of the micropore structure of activated carbons by adsorptions of nitrogen and some hydrocarbons
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Tarih
1999
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Marcel Dekker Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present study the effects of the duration of carbonization and physical activation properties of activated carbon from vegetable materials were investigated. Peanut shells were used to obtain active carbon. These shells were activated chemically with ZnCl2 and/or CO2 for different times, and the micropore structures of these active carbons were studied by measuring the adsorption isotherms for nitrogen and some hydrocarbons such as benzene, n-butane, isobutane, 2,2-dimethylbutane, and isooctane. As the physical activation time was increased, the primary micropores, which were measured at 0.01 relative pressure, were reduced, and they were replaced by larger secondary and tertiary micropores which were measured at 0.15-0.01 and 0.30-0.15 relative pressures. The ratios of the mesopore volume to the micropore volume also increased as the duration of physical activation increased.
Açıklama
Anahtar Kelimeler
Activated Carbon, Characterization Of Carbons, Hydrocarbon Adsorption
Kaynak
Separation Science and Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
34
Sayı
4
