Modeling of the adsorption rate of geniposide on granular adsorbent under different conditions considering several mass transfer mechanisms

被引:0
|
作者
Qian, Wenbin [1 ]
Qu, Mengnan [1 ]
Wu, Huimin [1 ]
Su, Yanting [1 ]
Shan, Shigang [1 ]
Zhang, Zhenwang [1 ]
Liu, Jingke [2 ]
Lin, Xiaoqing [2 ]
机构
[1] Hubei Univ Sci & Technol, Xianning Med Coll, Sch Basic Med Sci, Xianning 437000, Peoples R China
[2] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangdong Prov Key Lab Plant Resources Biorefinery, Guangzhou 510006, Peoples R China
基金
中国国家自然科学基金;
关键词
Adsorption; Kinetics; Modeling; Mass flux; Mass transfer zone; KINETICS; EQUILIBRIUM; EXTRACTION; PIGMENTS; FRUITS;
D O I
10.1016/j.ces.2025.121551
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This study presents a novel modeling approach to investigate the adsorption kinetics of geniposide (GS) in a batch solid-liquid system. The model incorporates both external and internal mass transfer resistances and is based on mass conservation of the adsorbate. A system of kinetic partial differential equations (PDEs) is developed to describe transport phenomena in both the liquid and solid phases within the adsorbent particle. The model considers the effects of initial GS concentration, solid/liquid volume ratio (SLR), and temperature on adsorption performance. Predictions of GS concentration profiles and the mass transfer zone (MTZ) evolution in a 3D spherical geometry show good agreement with experimental data, confirming the model's ability to capture adsorption kinetics and mass transfer mechanisms. This approach provides a comprehensive understanding of solid-liquid adsorption systems, offering a robust framework for future studies in chemical engineering.
引用
收藏
页数:13
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