A mechanistic modeling framework for gas-phase adsorption kinetics and fixed-bed transport

Austin P. Ladshaw, Sotira Yiacoumi, Ronghong Lin, Yue Nan, Lawrence L. Tavlarides, Costas Tsouris

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Adsorption is a complex physicochemical process involving interparticle transport, interphase mass-transfer, intraparticle diffusion, and surface reactions. Although the exact description of the adsorption process will inevitably vary from system to system, it will always be governed by those primary mechanisms. Therefore, by devising a model framework that can inherently include those mechanisms, it would be possible to create a modeling platform on which many different adsorption problems could be solved numerically. To accomplish this task, a generalized 1-D conservation law model was created to include the necessary mechanisms of adsorption on several different geometrical domains. Specific model applications for adsorption were developed under that framework and validated using experimental data available in literature or obtained in this work. This modeling platform makes it easier to model various adsorption problems and develop new adsorption models because of the common treatment of the mathematics governing the physical processes.

Original languageEnglish (US)
Pages (from-to)5029-5043
Number of pages15
JournalAIChE Journal
Volume63
Issue number11
DOIs
StatePublished - Nov 2017

Keywords

  • adsorption
  • diffusion kinetics
  • fixed-bed
  • gaseous
  • modeling

ASJC Scopus subject areas

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)

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