Investigation of mass transport processes in a microstructured membrane reactor for the direct synthesis of hydrogen peroxide
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Microstructured membrane reactors present a promising approach to master the productivity and safety challenges during the direct synthesis of hydrogen peroxide. However, various mass transport processes occur in this complex system. In order to gain a deeper understanding of these processes, the saturation and desaturation behaviour of the liquid reaction medium with the gaseous reactants is investigated experimentally to examine possible cross-contamination. Moreover, the employed PDMS membrane’s permeances to hydrogen and oxygen are researched at different pressures, by using a variable-pressure/constant-volume setup for the behaviour at ambient pressure and a constant-pressure/variable-volume setup for the behaviour at elevated pressures. A mathematical model in MATLAB is applied to simulate the results. It is shown that a certain desaturation of the gasses through the membrane occurs, and the results are underlined by the modelled ones using a solution-diffusion model in MATLAB. Thus a constant flushing of the gas channels of the reactor is required for safety reasons. Moreover, the measured permeance values indicate that the species transport is mainly limited by the diffusion in the liquid phase and not the membrane resistance.
Date Issued
2022-02-02
Date Acceptance
2021-10-21
Citation
Chemical Engineering Science, 2022, 248 (Part B), pp.1-12
ISSN
0009-2509
Publisher
Elsevier
Start Page
1
End Page
12
Journal / Book Title
Chemical Engineering Science
Volume
248
Issue
Part B
Copyright Statement
© 2021 The Author(s). Published by Elsevier Ltd.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000713068300010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Chemical
Engineering
Membrane permeance
PDMS
Cross-contamination
Solution-diffusion model
Microreactor
OXYGEN
H2O2
DIFFUSION
SYSTEM
O-2
H-2
Publication Status
Accepted
Article Number
ARTN 117145
Date Publish Online
2021-10-21