编号：CDUT-2022-18

标题：Development of fractal-like Clark model in a fixed-bed column

入藏号：WOS:000564730500015

中国科学院文献情报中心期刊分区：工程技术1区/TOP（2020年升级版）

本校作者：胡启立；裴向军

来源出版物：SEPARATION AND PURIFICATION TECHNOLOGY 卷251 文献号117396

出版年：2020

第一地址： 成都理工大学

关键词：吸附；分形Clark模型；传质系数；固定床

代表图：

摘要：The Clark model was used to describe a fixed-bed adsorption system based on the combination of the masstransferconcept and the Freundlich isotherm. The previous study revealed a time-dependent mass-transfercoefficient for the heterogeneous diffusion-limited process. Herein, this work proposed the fractal-like Clarkmodel and its reliability was validated by the adsorption of norfloxacin on granular activated carbon. Moreover,the effects of the model parameters on the breakthrough curves and rate profiles were also investigated. Theresults indicated that the fractal-like Clark model had a high adjusted coefficient of determination (Adj.R2 > 0.977) and a small Akaike information criterion (AIC < −107.2) in all cases, providing more accurateestimation of the model parameters than the Clark model. As a three-parameter model, the Clark model couldprovide higher fitting accuracy (Adj. R2 = 0.997) for the adsorption of Cu(II) on Cystoseira crinitophylla biomass.The breakthrough curve became more asymmetric when the parameters n and h deviated from 2 and 0, respectively.The fractal-like Clark model may help readers to better understand the mass-transfer process in afixed-bed column.

文章链接地址：https://www.sciencedirect.com/science/article/pii/S1383586620318700