Non-Uniformities in Adsorbent Monoliths

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

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 conference › Paper

Abstract

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 language	English
Publication status	Published - May 2007
Event	9th International Conference on Fundamentals of Adsorption - Giardini Naxos, Sicily, Italy Duration: 20 May 2007 → 25 May 2007

Conference

Conference	9th International Conference on Fundamentals of Adsorption
Country/Territory	Italy
City	Giardini Naxos, Sicily
Period	20/05/07 → 25/05/07

Keywords

Activated carbon monoliths
channel modelling
non-uniformities
VOC control

Cite this

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title = "Non-Uniformities in Adsorbent Monoliths",

abstract = "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.",

keywords = "Activated carbon monoliths, channel modelling, non-uniformities, VOC control",

author = "Olivier Camus and Barry Crittenden and Semali Perera and Tim Mays and {Sanchez Liarte}, Francisca and A Patsos and Tennison, {Steve R} and E Crezee",

year = "2007",

month = may,

language = "English",

note = "9th International Conference on Fundamentals of Adsorption ; Conference date: 20-05-2007 Through 25-05-2007",

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TY - CONF

T1 - Non-Uniformities in Adsorbent Monoliths

AU - Camus, Olivier

AU - Crittenden, Barry

AU - Perera, Semali

AU - Mays, Tim

AU - Sanchez Liarte, Francisca

AU - Patsos, A

AU - Tennison, Steve R

AU - Crezee, E

PY - 2007/5

Y1 - 2007/5

N2 - 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.

AB - 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.

KW - Activated carbon monoliths

KW - channel modelling

KW - non-uniformities

KW - VOC control

M3 - Paper

T2 - 9th International Conference on Fundamentals of Adsorption

Y2 - 20 May 2007 through 25 May 2007

ER -

Non-Uniformities in Adsorbent Monoliths

Abstract

Conference

Keywords

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