DICP OpenIR
The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation
Li, Lina1,2; Zhu, Wenliang1; Shi, Lei1; Liu, Yong1; Liu, Hongchao1; Ni, Youming1; Liu, Shiping1,2; Zhou, Hui1,2; Liu, Zhongmin1
KeywordPropane Dehydrogenation Crox/sio2 Catalyst Ethanol Vapor Pretreatment Carbon Dioxide
Source PublicationCHINESE JOURNAL OF CATALYSIS
2016-03-01
ISSN0253-9837
DOI10.1016/S1872-2067(15)61042-7
Volume37Issue:3Pages:359-366
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordOXIDATIVE DEHYDROGENATION ; OXIDE CATALYSTS ; CARBON-DIOXIDE ; CO2 ; PROPYLENE ; ETHYLBENZENE ; BEHAVIOR ; ALKANES ; METALS
AbstractThe effects of ethanol vapor pretreatment on the performance of CrOx/SiO2 catalysts during the dehydrogenation of propane to propylene were studied with and without the presence of CO2. The catalyst pretreated with ethanol vapor exhibited better catalytic activity than the pristine CrOx/SiO2, generating 41.4% propane conversion and 84.8% propylene selectivity. The various catalyst samples prepared were characterized by X-ray diffraction, transmission electron microscopy, temperature-programmed reduction, X-ray photoelectron spectroscopy and reflectance UV-Vis spectroscopy. The data show that coordinative Cr3+ species represent the active sites during the dehydrogenation of propane and that these species serve as precursors for the generation of Cr3+. Cr3+ is reduced during the reaction, leading to a decrease in catalytic activity. Following ethanol vapor pretreatment, the reduced CrOx in the catalyst is readily re-oxidized to Cr6+ by CO2. The pretreated catalyst thus exhibits high activity during the propane dehydrogenation reaction by maintaining the active Cr3+ states. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000372214000004
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171115
Collection中国科学院大连化学物理研究所
Corresponding AuthorLiu, Zhongmin
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Lina,Zhu, Wenliang,Shi, Lei,et al. The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation[J]. CHINESE JOURNAL OF CATALYSIS,2016,37(3):359-366.
APA Li, Lina.,Zhu, Wenliang.,Shi, Lei.,Liu, Yong.,Liu, Hongchao.,...&Liu, Zhongmin.(2016).The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation.CHINESE JOURNAL OF CATALYSIS,37(3),359-366.
MLA Li, Lina,et al."The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation".CHINESE JOURNAL OF CATALYSIS 37.3(2016):359-366.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Lina]'s Articles
[Zhu, Wenliang]'s Articles
[Shi, Lei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Lina]'s Articles
[Zhu, Wenliang]'s Articles
[Shi, Lei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Lina]'s Articles
[Zhu, Wenliang]'s Articles
[Shi, Lei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.