Influence of Supports on the Catalytic Activity and Coke Resistance of Ni Catalyst in Dry Reforming of Methane
DC Field | Value | Language |
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dc.contributor.author | Song, Da Hye | - |
dc.contributor.author | Jung, Un Ho | - |
dc.contributor.author | Kim, Young Eun | - |
dc.contributor.author | Im, Hyo Been | - |
dc.contributor.author | Lee, Tae Ho | - |
dc.contributor.author | Lee, Ki Bong | - |
dc.contributor.author | Koo, Kee Young | - |
dc.date.accessioned | 2022-04-28T18:40:46Z | - |
dc.date.available | 2022-04-28T18:40:46Z | - |
dc.date.created | 2022-04-28 | - |
dc.date.issued | 2022-02 | - |
dc.identifier.issn | 2073-4344 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/140471 | - |
dc.description.abstract | The dependence of the catalytic activity and coke resistance of Ni-based catalysts on the support type was investigated in the dry reforming of methane (DRM). Catalysts were prepared using incipient wetness impregnation and analyzed using ICP-OES, BET-BJH, XRD, H-2-chemisorption, H-2-TPR, and CO2-TPD. DRM was performed at 600-750 degrees C at 144,000 mL/g(cat)center dot h of GHSV (CH4/CO2/N-2 = 1/1/1). Ni/Al2O3 and Ni/MgO catalysts formed NiAl2O4 and NiO-MgO solid solutions, respectively, owing to strong binding between the metal and support. In contrast, MgO-Al2O3 and MgAl2O4 supports suppressed NiAl2O4 and NiO-MgO solid solution formation, due to Mg addition, with high metal dispersions of 4.6 and 6.6%, respectively. In the DRM reaction, the Ni/MgO-Al2O3 and Ni/MgAl2O4 catalysts showed high CH4 conversions of 78.1 and 76.8%, respectively, compared with Ni/Al2O3 and Ni/MgO at 750 degrees C. A stability test was performed at 600 degrees C for 20 h. A coke study of the spent catalysts was performed using SEM and TGA. Alkaline-earth metal-containing catalysts Ni/MgO-Al2O3 and Ni/MgAl2O4 with strong CO2 adsorption properties showed 20 wt% reduction in carbon deposition compared to commercial catalysts. Therefore, the support and basic properties of the catalyst significantly influenced the catalyst performance and coke resistance in the DRM. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.subject | CARBON-DIOXIDE | - |
dc.subject | NICKEL-CATALYSTS | - |
dc.subject | STABLE NI | - |
dc.subject | MGO | - |
dc.subject | PERFORMANCE | - |
dc.subject | PROMOTERS | - |
dc.subject | GAS | - |
dc.title | Influence of Supports on the Catalytic Activity and Coke Resistance of Ni Catalyst in Dry Reforming of Methane | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Ki Bong | - |
dc.identifier.doi | 10.3390/catal12020216 | - |
dc.identifier.scopusid | 2-s2.0-85124398020 | - |
dc.identifier.wosid | 000778162500001 | - |
dc.identifier.bibliographicCitation | CATALYSTS, v.12, no.2 | - |
dc.relation.isPartOf | CATALYSTS | - |
dc.citation.title | CATALYSTS | - |
dc.citation.volume | 12 | - |
dc.citation.number | 2 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.subject.keywordPlus | CARBON-DIOXIDE | - |
dc.subject.keywordPlus | NICKEL-CATALYSTS | - |
dc.subject.keywordPlus | STABLE NI | - |
dc.subject.keywordPlus | MGO | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PROMOTERS | - |
dc.subject.keywordPlus | GAS | - |
dc.subject.keywordAuthor | dry reforming of methane | - |
dc.subject.keywordAuthor | syngas | - |
dc.subject.keywordAuthor | coke resistance | - |
dc.subject.keywordAuthor | Ni catalyst | - |
dc.subject.keywordAuthor | MgO-Al2O3 | - |
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