Integrating Pd-doped perovskite catalysts with ceramic hollow fibre substrate for efficient CO oxidation
File(s)Manuscript_Final_Revised.docx (3.29 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
Doping Pd into perovskite catalysts helps to reduce light-off temperatures, improve thermal-chemical stability and lowered catalyst cost by decreasing Platinum Group Metals (PGMs). In this study, LaFe0.7Mn0.225Pd0.075O3 (LFMPO) and LaFe0.7Co0.225Pd0.075O3 (LFCPO) were synthesised, characterized and evaluated for catalytic treatment of automotive emissions, using CO oxidation as the model reaction. Such catalysts were further incorporated inside micro-structured ceramic hollow fibre substrates, and compared with a packed bed configuration by light-off temperatures. Performance evaluations suggest that, LFMPO deposited inside the hollow fibre substrate could be light up at 232 °C, which is 10 °C lower than a packed-bed counterpart with the same amount of catalyst (5 mg) and GHSV of ∼5300 h−1. While excessive incorporation of the catalyst (10 mg) generates significantly higher transfer resistance, which impairs catalytic performance of hollow fibre reactors, with CO conversion per gram of catalyst reduced from 0.01 mol g−1 to 0.0051 mol g−1.
Date Issued
2020-08-01
Date Acceptance
2020-03-24
Citation
Journal of Environmental Chemical Engineering, 2020, 8 (4), pp.1-9
ISSN
2213-3437
Publisher
Elsevier
Start Page
1
End Page
9
Journal / Book Title
Journal of Environmental Chemical Engineering
Volume
8
Issue
4
Copyright Statement
© 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000562079500009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/R029180/1
Subjects
Science & Technology
Technology
Engineering, Environmental
Engineering, Chemical
Engineering
Catalytic converter
Ceramic hollow fibre
Perovskite catalyst
Palladium
CO oxidation
Light-off temperature
OXIDES
CONVERTERS
PALLADIUM
DESIGN
Publication Status
Published
Article Number
ARTN 103897
Date Publish Online
2020-04-28