A mini-review on the modeling of volatile organic compound adsorption in activated carbons: Equilibrium,dynamics, and heat effects |
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| Authors: | Shanshan Wang Liangliang Huang Yumeng Zhang Licheng Li Xiaohua Lu |
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| Affiliation: | 1.State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;2.School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, OK 73019, United States;3.College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China |
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| Abstract: | The research on the adsorption equilibria, kinetics, and increase in process temperature of the volatile organic compound (VOC) adsorption in porous materials ensures safe production, thereby reducing production costs and improving separation efficiency. Therefore, it is critical in predicting the entire adsorption process based on minimal or no experimental input of the adsorbate and adsorbent. We discuss, in this review, the factors that affect the adsorption performance of VOCs in activated carbons, including the adsorption equilibrium, adsorption kinetics, and exotherm during adsorption. Subsequently, the existing prediction models are summarized and compared concerning the adsorption equilibrium, adsorption kinetics, and exothermic process of adsorption. We then propose a new prediction model based on intermolecular interaction and provide an outlook toward the design and manipulation of efficient adsorbents for the VOC system. |
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| Keywords: | Volatile organic compounds Activated carbon Adsorption equilibria Adsorption kinetics Adsorption exotherm |
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