Research

Nonuniform channels in adsorbent monoliths


Reference:

Crittenden, B. D., Camus, O., Perera, S. P., Mays, T. J., Sanchez-Liarte, F., Tennison, S. R. and Crezee, E., 2011. Nonuniform channels in adsorbent monoliths. AIChE Journal, 57 (5), pp. 1163-1172.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below. (Contact Author)

Official URL:

http://dx.doi.org/10.1002/aic.12335

Related URLs:

Abstract

A model is introduced to account for nonuniform channel geometries in monolithic adsorbents. Based on nonisothermal operation, fully developed parabolic flow and the full three-dimensional convection-diffusion equation, the model is applied to the adsorption of dichloromethane from an air stream flowing through a binder-less activated carbon monolith. The equilibrium parameters and the effective diffusion coefficient for adsorption are obtained independently from gravimetric adsorption experiments. The nonuniform channel model is capable of predicting breakthrough curves as a function of feed gas flow rates up to dimensionless breakthrough concentrations of about 0.4-0.6, depending on the feed flow rate. Even though the variation of effective diffusion coefficient with both concentration and temperature has been tested, successful prediction over the whole range of concentration may require the incorporation of further aspects relating to the anisotropic nature of the carbon.

Details

Item Type Articles
CreatorsCrittenden, B. D., Camus, O., Perera, S. P., Mays, T. J., Sanchez-Liarte, F., Tennison, S. R. and Crezee, E.
DOI10.1002/aic.12335
Related URLs
URLURL Type
http://dx.doi.org/10.1002/aic.12335Free Full-text
Uncontrolled Keywordsnonuniformities, voc control, activated carbon monoliths, channel modeling
DepartmentsFaculty of Engineering & Design > Chemical Engineering
RefereedNo
StatusPublished
ID Code23644

Export

Actions (login required)

View Item