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Ryoo, Ryong
나노물질 및 화학반응 연구단
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Enhanced catalytic activity of phosphorus-modified SSZ-13 zeolite in the ethylene-to-propylene reaction by controlling acidity and intracrystalline diffusivity

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dc.contributor.authorLee, Sungjune-
dc.contributor.authorKim, Chul-Ung-
dc.contributor.authorJeong-Chul Kim-
dc.contributor.authorLee, Su-Un-
dc.contributor.authorKwak, Ja Hun-
dc.contributor.authorRyong Ryoo-
dc.contributor.authorKim, Tae-Wan-
dc.date.accessioned2022-07-29T07:41:29Z-
dc.date.available2022-07-29T07:41:29Z-
dc.date.created2022-07-18-
dc.date.issued2022-10-
dc.identifier.issn1385-8947-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/11993-
dc.description.abstractA highly selective means of producing propylene via the ethylene-to-propylene (ETP) reaction is required to manage the supply-demand balance of light olefins. To improve the catalytic activity of the ETP reaction, a phosphorus-modified SSZ-13 zeolite (P-SSZ-13) was prepared by introducing phosphorus to the SSZ-13 zeolite via a simple impregnation method. The P-SSZ-13 catalyst exhibited increased propylene selectivity and yield compared to the pristine catalyst. According to solid-state NMR spectroscopy and STEM-EDS observation, the phosphorus species were mainly located on the outer part of the crystal as a form of polyphosphate. To reveal the effect of the phosphorus loading on the enhancement of ETP reactivity, a series of surface-modified SSZ-13 catalysts were prepared and investigated. It was found that the polyphosphate species in the P-SSZ-13 catalyst not only weakened the acidity of the zeolite by bonding with the framework aluminum species but also reduced the diffusion out of the relatively large-sized hydrocarbon species by partially blocking the pore mouths. The change in the diffusivity of the hydrocarbons over the SSZ-13 catalysts also affected the ETP reactivity. The relationship between the amount of phosphorus and the ETP reactivity of the P-SSZ-13 catalysts could also be clearly demonstrated in terms of the change in both acidity and intracrystalline diffusivity. Moreover, 13C MAS NMR measurement with isotopic switch experiment confirmed the alkyl naphthalene-based hydrocarbon pool mechanism over the P-SSZ-13 for the ETP reaction.-
dc.language영어-
dc.publisherElsevier B.V.-
dc.titleEnhanced catalytic activity of phosphorus-modified SSZ-13 zeolite in the ethylene-to-propylene reaction by controlling acidity and intracrystalline diffusivity-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000810444900004-
dc.identifier.scopusid2-s2.0-85131443500-
dc.identifier.rimsid78502-
dc.contributor.affiliatedAuthorJeong-Chul Kim-
dc.contributor.affiliatedAuthorRyong Ryoo-
dc.identifier.doi10.1016/j.cej.2022.137169-
dc.identifier.bibliographicCitationChemical Engineering Journal, v.446-
dc.relation.isPartOfChemical Engineering Journal-
dc.citation.titleChemical Engineering Journal-
dc.citation.volume446-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalWebOfScienceCategoryEngineering, Environmental-
dc.relation.journalWebOfScienceCategoryEngineering, Chemical-
dc.subject.keywordPlusCONVERSION-
dc.subject.keywordPlusPROPENE-
dc.subject.keywordPlusOLEFINS-
dc.subject.keywordPlusETHENE-
dc.subject.keywordPlusHYDROCARBONS-
dc.subject.keywordPlusMECHANISM-
dc.subject.keywordPlusCRACKING-
dc.subject.keywordPlusH-ZSM-5-
dc.subject.keywordPlusSAPO-34-
dc.subject.keywordPlusHZSM-5-
dc.subject.keywordAuthorEthylene-to-propylene-
dc.subject.keywordAuthorIntracrystalline diffusivity-
dc.subject.keywordAuthorOlefin interconversion-
dc.subject.keywordAuthorPhosphorus modification-
dc.subject.keywordAuthorPropylene production-
dc.subject.keywordAuthorSSZ-13-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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