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Title: Process modelling of the recovery of volatile organic compounds on activated carbon monoliths
Author: Chehadeh Al Kahf, Dduha
Awarding Body: University of Bath
Current Institution: University of Bath
Date of Award: 2013
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The research described in this thesis is to develop and validate a process system model for an electrothermal swing adsorption (ESA) process that incorporates novel activated carbon monoliths (ACMs) for the recovery of volatile organic compounds (VOCs). The process system comprises two columns one dedicated for adsorption and the other for desorption and works in a cyclic mode of operation. Two mathematical models have been developed to describe the process system, namely in one dimension (1D) and in three dimensions (3D). The developed models have been validated using experimental data at the bench and the pilot scale, at different operating conditions and for two VOCs. It has been concluded that the 1D model was sufficient to represent the experimental data of the current study without going through the trouble of using the 3D model which was more demanding in terms of formulation and computation. The linear driving force approximation (LDF) approximation adequately predicted the concentration of VOCs in the gas phase with no need for a fundamental diffusion study within the solid of the ACMs. The kinetics of adsorption and desorption was governed by the mass transfer coefficient which was found by parameter estimation and was directly related to the internal mass transfer coefficient controlled mainly by molecular diffusion inside the pore structure of the ACMs.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available