{"title":"A study of catalyst operating regimes using alumina-supported catalytic plates for CO oxidation in a microreactor","authors":"Rehana Kousar , Sang Hoon Kim , Ji Young Byun","doi":"10.1016/j.jksues.2021.09.003","DOIUrl":null,"url":null,"abstract":"<div><div>The performance of a microreactor loaded with Pd/Alumina catalytic plates was tested for CO oxidation as a model reaction. A microreactor with a feasible joining method was designed for catalytic processes. Further, this study aimed to investigate the correlation of metal active phase and support thickness towards catalytic activity. Experiments on CO oxidation showed that the catalyst activity of the active material can be improved by controlling both the catalyst oxidation state and support thickness. Pd in oxide form (PdO) showed better catalytic activity as compared with that of the metallic Pd. Furthermore, given the same amount of deposited Pd, the catalytic activity was enhanced by decreasing the catalyst support thickness, which is due to an increase in the surface concentration of the active metal as a result of its shallow dispersion. The results showed that increasing film thickness within a certain range (∼30 µm) could significantly improve the catalyst activity.</div></div>","PeriodicalId":35558,"journal":{"name":"Journal of King Saud University, Engineering Sciences","volume":"36 8","pages":"Pages 709-716"},"PeriodicalIF":0.0000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of King Saud University, Engineering Sciences","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1018363921001367","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Chemical Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
The performance of a microreactor loaded with Pd/Alumina catalytic plates was tested for CO oxidation as a model reaction. A microreactor with a feasible joining method was designed for catalytic processes. Further, this study aimed to investigate the correlation of metal active phase and support thickness towards catalytic activity. Experiments on CO oxidation showed that the catalyst activity of the active material can be improved by controlling both the catalyst oxidation state and support thickness. Pd in oxide form (PdO) showed better catalytic activity as compared with that of the metallic Pd. Furthermore, given the same amount of deposited Pd, the catalytic activity was enhanced by decreasing the catalyst support thickness, which is due to an increase in the surface concentration of the active metal as a result of its shallow dispersion. The results showed that increasing film thickness within a certain range (∼30 µm) could significantly improve the catalyst activity.
期刊介绍:
Journal of King Saud University - Engineering Sciences (JKSUES) is a peer-reviewed journal published quarterly. It is hosted and published by Elsevier B.V. on behalf of King Saud University. JKSUES is devoted to a wide range of sub-fields in the Engineering Sciences and JKSUES welcome articles of interdisciplinary nature.