Non-Uniformities in Adsorbent Monoliths

Olivier Camus, Barry Crittenden, Semali Perera, Tim Mays, Francisca Sanchez Liarte, A Patsos, Steve R Tennison, E Crezee

Research output: Contribution to conferencePaper


A new, fundamental model is introduced to account for non-uniform channel geometries in monolithic adsorbents. The model, based on isothermal operation, plug flow and the full three-dimensional convection-diffusion equation, is applied to the adsorption of dichloromethane from an air stream flowing through a binderless activated carbon monolith. Equilibrium parameters and the effective diffusion coefficient for adsorption are obtained independently from gravimetric adsorption data. The new non-uniform channel model is capable of predicting breakthrough curves as a function of feed gas flow rates up to about 0.4 dimensionless concentration. Successful prediction over the whole range of concentrations almost certainly would require the isothermal model to be adapted to include the energy balance.
Original languageEnglish
Publication statusPublished - May 2007
Event9th International Conference on Fundamentals of Adsorption - Giardini Naxos, Sicily, Italy
Duration: 20 May 200725 May 2007


Conference9th International Conference on Fundamentals of Adsorption
CityGiardini Naxos, Sicily


  • Activated carbon monoliths
  • channel modelling
  • non-uniformities
  • VOC control


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