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DC Field | Value | Language |
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dc.citation.endPage | 78 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 72 | - |
dc.citation.title | CATALYSIS TODAY | - |
dc.citation.volume | 178 | - |
dc.contributor.author | Kim, Yeon Ho | - |
dc.contributor.author | Lee, Kyung Hee | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-22T05:39:07Z | - |
dc.date.available | 2023-12-22T05:39:07Z | - |
dc.date.created | 2015-07-27 | - |
dc.date.issued | 2011-12 | - |
dc.description.abstract | A new method to modify the acidity of zeolite was attempted to improve the activity and stability of Zn/ZSM-5 in aromatization of 2-methyl-2-butene. Pre-coking and regeneration in the presence of O(2) at 773 K generated a large exothermic heat in a short time, which resulted in the thermal dealumination of framework aluminum that acted as a Bronsted acid site. The treatment had a profound effect on the acid properties of the catalyst as probed by (27)Al MAS NMR, temperature-programmed desorption of ammonia, and pyridine FTIR. The results showed that the concentration of oxygen in regeneration step had critical effects on the acidity and stability of Zn/ZSM-5. Thus improvement of lifetime of Zn/ZSM-5 in aromatization of 2-methyl-2-butene was achieved without deteriorating activity and selectivity by the pre-coking and controlled regeneration by oxygen. (C) 2011 Elsevier B. V. All rights reserved | - |
dc.identifier.bibliographicCitation | CATALYSIS TODAY, v.178, no.1, pp.72 - 78 | - |
dc.identifier.doi | 10.1016/j.cattod.2011.07.002 | - |
dc.identifier.issn | 0920-5861 | - |
dc.identifier.scopusid | 2-s2.0-82955187344 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12631 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0920586111005177 | - |
dc.identifier.wosid | 000298144800010 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title.alternative | The effect of pre-coking and regeneration on the activity and stability of Zn/ZSM-5 in aromatization of 2-methyl-2-butene | - |
dc.title | The effect of pre-coking and regeneration on the activity and stability of Zn/ZSM-5 in aromatization of 2-methyl-2-butene | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Aromatization | - |
dc.subject.keywordAuthor | 2-Methyl-2-butene | - |
dc.subject.keywordAuthor | Dealumination | - |
dc.subject.keywordAuthor | Acidity | - |
dc.subject.keywordAuthor | Zn/ZSM-5 | - |
dc.subject.keywordPlus | ZEOLITE CATALYSTS | - |
dc.subject.keywordPlus | XYLENE ISOMERIZATION | - |
dc.subject.keywordPlus | ACIDITY | - |
dc.subject.keywordPlus | ALKANES | - |
dc.subject.keywordPlus | HZSM-5 | - |
dc.subject.keywordPlus | HYDROCARBONS | - |
dc.subject.keywordPlus | IMPROVEMENT | - |
dc.subject.keywordPlus | H-ZSM-5 | - |
dc.subject.keywordPlus | PROPANE | - |
dc.subject.keywordPlus | OLEFINS | - |
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