{"title":"在掺杂稀土氧化物的 Pt/Al2O3 催化剂上自热氧化偶联甲烷","authors":"Sven Schardt, Felix Ehrlich, Dr. Patrick Lott","doi":"10.1002/cite.202300165","DOIUrl":null,"url":null,"abstract":"<p>The effect of rare earth oxides as dopants on the Pt-governed oxidative coupling of methane (Pt-OCM) is investigated. The addition of 20 wt.-% of La-, Nd-, Sm-, and Pr-oxides to the support benefits the C<sub>2</sub> product selectivity and offers the potential to enhance the catalyst stability. Compared to the reference catalyst Pt/Al<sub>2</sub>O<sub>3</sub>, the addition of Sm<sub>2</sub>O<sub>3</sub> increased the total selectivity by up to 23 %. Furthermore, La<sub>2</sub>O<sub>3</sub> addition was found beneficial with respect to the (thermal) stability of the catalyst. Dopant content variations uncovered that the catalyst formulation with 20 wt.-% La<sub>2</sub>O<sub>3</sub> represents an optimum regarding performance and stability.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202300165","citationCount":"0","resultStr":"{\"title\":\"Autothermal Oxidative Coupling of Methane over Pt/Al2O3 Catalysts Doped with Rare Earth Oxides\",\"authors\":\"Sven Schardt, Felix Ehrlich, Dr. Patrick Lott\",\"doi\":\"10.1002/cite.202300165\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The effect of rare earth oxides as dopants on the Pt-governed oxidative coupling of methane (Pt-OCM) is investigated. The addition of 20 wt.-% of La-, Nd-, Sm-, and Pr-oxides to the support benefits the C<sub>2</sub> product selectivity and offers the potential to enhance the catalyst stability. Compared to the reference catalyst Pt/Al<sub>2</sub>O<sub>3</sub>, the addition of Sm<sub>2</sub>O<sub>3</sub> increased the total selectivity by up to 23 %. Furthermore, La<sub>2</sub>O<sub>3</sub> addition was found beneficial with respect to the (thermal) stability of the catalyst. Dopant content variations uncovered that the catalyst formulation with 20 wt.-% La<sub>2</sub>O<sub>3</sub> represents an optimum regarding performance and stability.</p>\",\"PeriodicalId\":9912,\"journal\":{\"name\":\"Chemie Ingenieur Technik\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.202300165\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemie Ingenieur Technik\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/cite.202300165\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemie Ingenieur Technik","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/cite.202300165","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Autothermal Oxidative Coupling of Methane over Pt/Al2O3 Catalysts Doped with Rare Earth Oxides
The effect of rare earth oxides as dopants on the Pt-governed oxidative coupling of methane (Pt-OCM) is investigated. The addition of 20 wt.-% of La-, Nd-, Sm-, and Pr-oxides to the support benefits the C2 product selectivity and offers the potential to enhance the catalyst stability. Compared to the reference catalyst Pt/Al2O3, the addition of Sm2O3 increased the total selectivity by up to 23 %. Furthermore, La2O3 addition was found beneficial with respect to the (thermal) stability of the catalyst. Dopant content variations uncovered that the catalyst formulation with 20 wt.-% La2O3 represents an optimum regarding performance and stability.
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Die Chemie Ingenieur Technik ist die wohl angesehenste deutschsprachige Zeitschrift für Verfahrensingenieure, technische Chemiker, Apparatebauer und Biotechnologen. Als Fachorgan von DECHEMA, GDCh und VDI-GVC gilt sie als das unverzichtbare Forum für den Erfahrungsaustausch zwischen Forschern und Anwendern aus Industrie, Forschung und Entwicklung. Wissenschaftlicher Fortschritt und Praxisnähe: Eine Kombination, die es nur in der CIT gibt!
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