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Influence of the state of Zn species over Zn-ZSM-5/ZSM-11 on the coupling effects of cofeeding n-butane with methanol
Song, Chao1,2; Li, Xiujie1; Zhu, Xiangxue1; Liu, Shenglin1; Chen, Fucun1; Liu, Feng3; Xu, Longya1
KeywordZn State Cofeeding Methanol N-butane Aromatization
Source PublicationAPPLIED CATALYSIS A-GENERAL
2016-06-05
ISSN0926-860X
DOI10.1016/j.apcata.2016.03.023
Volume519Pages:48-55
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordRAY PHOTOELECTRON-SPECTROSCOPY ; LOADED ZSM-5/ZSM-11 ZEOLITE ; PROMOTED H-ZSM-5 CATALYSTS ; BRONSTED ACID SITES ; ZSM-5 ZEOLITES ; IN-SITU ; PROPANE AROMATIZATION ; ZN/MFI CATALYST ; LIGHT ALKANES ; ACTIVE-SITES
AbstractCombination of the exothermic methanol aromatization with the endothermic n-butane aromatization provides a good way to meet the increasing demand for aromatics. Here, a series of Zn-ZSM-5/ZSM-11 catalysts were prepared with different introduction methods. The influence of location and state of Zn species on the coupling effects of cofeeding n-butane with methanol were investigated in detail. UV-vis, H-2-TPR and XPS spectra were applied to reveal the state of the Zn species on different catalysts. Quantitative results of NH3-TPD and Pyridine-FTIR were provided to compare the acidity changes of the catalyst after Zn loading. Physical mixing method led to high portion of bulk ZnO particles outside the channel which could promote the formation of C-2-C-4 light alkane in cofeeding reaction. Ion exchange and impregnation modes were beneficial for the formation of Zn-O-Zn bridging species in the micropore channel. Zn-O-Zn bridging species was found to increase the promoting effect of cofeeding n-butane with methanol on aromatics selectivity. (C) 2016 Published by Elsevier B.V.
Language英语
WOS IDWOS:000376700400006
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170999
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi, Xiujie; Xu, Longya
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.SINOPEC, Beijing Res Inst Chem Ind, Beijing 100013, Peoples R China
3.Shanxi Yanchang Petr Grp Co Ltd, Yanan Refinery Plant, Luochuan 727406, Peoples R China
Recommended Citation
GB/T 7714
Song, Chao,Li, Xiujie,Zhu, Xiangxue,et al. Influence of the state of Zn species over Zn-ZSM-5/ZSM-11 on the coupling effects of cofeeding n-butane with methanol[J]. APPLIED CATALYSIS A-GENERAL,2016,519:48-55.
APA Song, Chao.,Li, Xiujie.,Zhu, Xiangxue.,Liu, Shenglin.,Chen, Fucun.,...&Xu, Longya.(2016).Influence of the state of Zn species over Zn-ZSM-5/ZSM-11 on the coupling effects of cofeeding n-butane with methanol.APPLIED CATALYSIS A-GENERAL,519,48-55.
MLA Song, Chao,et al."Influence of the state of Zn species over Zn-ZSM-5/ZSM-11 on the coupling effects of cofeeding n-butane with methanol".APPLIED CATALYSIS A-GENERAL 519(2016):48-55.
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