Direct Conversion of CO₂ into Dimethyl Ether over Al₂O₃/Cu/ZnO Catalysts Prepared by Sequential Precipitation
DC Field | Value | Language |
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dc.contributor.author | Jeong, Cheonwoo | - |
dc.contributor.author | Kim, Jinsung | - |
dc.contributor.author | Kim, Ji-Hyeon | - |
dc.contributor.author | Lee, Sunghoon | - |
dc.contributor.author | Bae, Jong Wook | - |
dc.contributor.author | Suh, Young-Woong | - |
dc.date.accessioned | 2021-08-03T02:56:44Z | - |
dc.date.available | 2021-08-03T02:56:44Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-06 | - |
dc.identifier.issn | 2073-4344 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32861 | - |
dc.description.abstract | Bifunctional Al2O3/Cu/ZnO catalysts with Al composition of between 30 mol% and 80 mol% were prepared by sequential precipitation (SP) for the conversion of CO2 into dimethyl ether (DME). In the SP synthesis, the concentration of a precipitation agent managed to be high enough to induce the complete precipitation of Al3+. The prepared precipitates were composed of zincian malachite and amorphous AlO(OH). Furthermore, the calcined mixed metal oxide materials of 60% and 80% Al exhibited a higher acidity than commercial Al2O3 and the H-2-reduced catalysts showed the similar Cu dispersion of 6%-7% at all Cu loadings. In the activity test at 573 K and 50 bar, the SP-derived catalyst of 80% Al (SP-80) displayed the best performance corresponding to CO2 conversion of 25% and DME selectivity of 75% that are close to equilibrium values. In order to overcome the thermodynamic limitation, a dual-bed catalyst system was made up of SP-80 in the first layer and zeolite ferrierite in the next. This approach enabled DME selectivity to be enhanced to 90% while CO2 conversion increased a little. Consequently, the studied catalyst system based on the SP-derived catalysts can contribute greatly to selective DME production from CO2. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.title | Direct Conversion of CO₂ into Dimethyl Ether over Al₂O₃/Cu/ZnO Catalysts Prepared by Sequential Precipitation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Suh, Young-Woong | - |
dc.identifier.doi | 10.3390/catal9060524 | - |
dc.identifier.scopusid | 2-s2.0-85069876514 | - |
dc.identifier.wosid | 000473808000037 | - |
dc.identifier.bibliographicCitation | CATALYSTS, v.9, no.6, pp.1 - 12 | - |
dc.relation.isPartOf | CATALYSTS | - |
dc.citation.title | CATALYSTS | - |
dc.citation.volume | 9 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.subject.keywordPlus | METHANOL-SYNTHESIS CATALYST | - |
dc.subject.keywordPlus | METHYL ACETATE | - |
dc.subject.keywordPlus | CARBONYLATION | - |
dc.subject.keywordPlus | HYDROGENATION | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | DEFECTS | - |
dc.subject.keywordPlus | COPPER | - |
dc.subject.keywordPlus | SITE | - |
dc.subject.keywordAuthor | CO2 conversion | - |
dc.subject.keywordAuthor | Dimethyl ether | - |
dc.subject.keywordAuthor | Sequential precipitation | - |
dc.subject.keywordAuthor | Bifunctional catalyst | - |
dc.identifier.url | https://www.mdpi.com/2073-4344/9/6/524 | - |
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