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A critical short review of equilibrium and kinetic adsorption models for VOCs breakthrough curves modelling

AuthorsValenciano, Raquel; Aylón Marquina, Elvira; Izquierdo Pantoja, María Teresa
KeywordsAdsorption modelling
Kinetic model
Multicomponent mixture.
Issue Date21-Aug-2015
PublisherMulti Science Publishing
CitationAdsorption Science and Technology 33(19): 851-869 (2015)
AbstractVolatile organic compounds emission has important effects over the environment and human beings health. When these substances cannot be substituted, adsorption systems are still a very common solution to VOCs emission, but for their design, previous laboratory work is necessary: adsorption isotherms and breakthrough curves must be obtained. The first ones establish the maximal amount of adsorbate retained over the solid adsorbent for a certain pressure of the adsorbate, and the second ones define the adsorption process kinetics. Once this information is studied, a theoretical breakthrough time model can be built up, and then the scale up of the adsorption system can be developed. This process is rather complex for multicomponent gas mixtures, where a competition between adsorbates happens. Thus, the aim of this paper is to establish a guide for authors willing to develop breakthrough time prediction models for multicomponent systems through a critical review of different adsorption and kinetic models.
Publisher version (URL)http://dx.doi.org/10.1260/0263-6174.33.9.739
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