Ni-Fe-Al mixed oxide for combined dry reforming and decomposition of methane with CO2 utilization

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dc.contributor.authorKim, Yikyeomko
dc.contributor.authorLim, Hyun Sukko
dc.contributor.authorLee, Minbeomko
dc.contributor.authorLee, Jae Wooko
dc.date.accessioned2021-04-13T07:50:08Z-
dc.date.available2021-04-13T07:50:08Z-
dc.date.created2020-02-21-
dc.date.created2020-02-21-
dc.date.issued2021-05-
dc.identifier.citationCATALYSIS TODAY, v.368, pp.86 - 95-
dc.identifier.issn0920-5861-
dc.identifier.urihttp://hdl.handle.net/10203/282393-
dc.description.abstractThe chemical looping dry reforming of methane can be used to convert greenhouse gases into products with much desirable specification. However, developing an oxygen carrier with coke-tolerance and high oxygen exchange rate usually requires the use of rare-earth metals or lanthanides. In this study, by utilizing deposited surface carbon as a reaction intermediate rather than suppressing it, complete methane conversion was possible even with the earth-abundant metal oxide particles. To establish an optimized H2/CO ratio for the hydrocarbon synthesis, the CH4 feedstock was partially replaced with CO2. By itself, Ni-Al oxide exhibited deactivation due to the agglomeration arising from methane decomposition over the redox cycle. Fe-Al oxide had stable performance over cycles, but a sudden performance decline was observed when the amount of CO2 co-feeding exceeded a certain point. Incorporating Ni into the Fe-Al oxide was found to overcome these problems. The formation of a spinel phase with Fe alleviated the agglomeration, and enhanced CH4 activation under high CO2 partial pressure. The introduction of Ni also improved carbon gasification kinetics with CO2.-
dc.languageEnglish-
dc.publisherELSEVIER-
dc.titleNi-Fe-Al mixed oxide for combined dry reforming and decomposition of methane with CO2 utilization-
dc.typeArticle-
dc.identifier.wosid000636684300009-
dc.identifier.scopusid2-s2.0-85080036752-
dc.type.rimsART-
dc.citation.volume368-
dc.citation.beginningpage86-
dc.citation.endingpage95-
dc.citation.publicationnameCATALYSIS TODAY-
dc.identifier.doi10.1016/j.cattod.2020.02.030-
dc.contributor.localauthorLee, Jae Woo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorChemical looping dry reforming-
dc.subject.keywordAuthorMethane decomposition-
dc.subject.keywordAuthorDeactivation-
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CBE-Journal Papers(저널논문)
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