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Adsorption of trichloroethylene and benzene vapors onto hypercrosslinked polymeric resin

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Abstract.
In this research, the adsorption equilibria of trichloroethylene (TCE) and benzene vapors onto hypercrosslinked polymeric resin (NDA201) were investigated by the column adsorption method in the
temperature range from 303 to 333K and pressures up to 8 kPa for TCE, 12 kPa for benzene. The Toth
and Dubinin–Astakov (D–A) equations were tested to correlate experimental isotherms, and the experimental
data were found to fit well by them. The good fits and characteristic curves of D–A equation
provided evidence that a pore-filling phenomenon was involved during the adsorption of TCE and benzene
onto NDA-201. Moreover, thermodynamic properties such as the Henry’s constant and the isosteric
enthalpy of adsorption were calculated. The isosteric enthalpy curves varied with the surface loading for
each adsorbate, indicating that the hypercrosslinked polymeric resin has an energetically heterogeneous
surface. In addition, a simple mathematic model developed by Yoon and Nelson was applied to investigate
the breakthrough behavior on a hypercrosslinked polymeric resin column at 303K and the calculated
breakthrough curves were in high agreement with corresponding experimental data.

Keywords:
Hypercrosslinked polymeric resin
VOCs
Adsorption
Isosteric enthalpy
Kinetic

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 166 (2009) 46–51

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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