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http://dx.doi.org/10.9713/kcer.2020.58.1.127

Isotherm, Kinetic and Thermodynamic Characteristics for Adsorption of Acenaphthene onto Sylopute  

Cho, Da-Nim (Department of Chemical Engineering, Kongju National University)
Kim, Jin-Hyun (Department of Chemical Engineering, Kongju National University)
Publication Information
Korean Chemical Engineering Research / v.58, no.1, 2020 , pp. 127-134 More about this Journal
Abstract
The adsorption characteristics of the major tar compound, acenaphthene, derived from Taxus chinensis by the commercial adsorbent Sylopute were investigated using different parameters such as initial acenaphthene concentration, adsorption temperature, and contact time. Out of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models, adsorption data were best described by Langmuir isotherm. The adsorption kinetics was evaluated by pseudo-first-order, pseudo-second-order and intraparticle diffusion models. The pseudo-second-order model was found to explain the adsorption kinetics most effectively. Thermodynamic parameters revealed the feasibility, nonspontaneity and exothermic nature of adsorption. In addition, the isosteric heat of adsorption was independent of surface loading indicating the Sylopute used as an energetically homogeneous surface.
Keywords
Acenaphthene; Sylopute; Adsorption isotherm; Kinetics; Thermodynamics;
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Times Cited By KSCI : 4  (Citation Analysis)
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