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Influences of alkaline treatment on the structure and catalytic performances of ZSM-5/ZSM-11 zeolites with alumina as binder
Li, Xiujie; Wang, Chuanfu; Liu, Shenglin; Xin, Wenjie; Wang, Yuzhong; Xie, Sujuan; Xu, Longya
KeywordAlkaline Treatment Alumina Binder Zsm-5/zsm-11 1-hexene Aromatization
Source PublicationJOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
2011-02-14
DOI10.1016/j.molcata.2010.12.007
Volume336Issue:1-2Pages:34-41
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordMFI ZEOLITES ; ZSM-5 ZEOLITES ; MESOPOROSITY DEVELOPMENT ; CONTROLLED DESILICATION ; AROMATIZATION ; CRYSTALS ; POSTTREATMENT ; ADSORPTION ; STABILITY ; 1-HEXENE
AbstractInfluences of alkaline treatment on the structural properties and catalytic performances of ZSM-5/ZSM-11 composite zeolites with alumina as binder at different preparation steps were studied in the present investigation. Temperature-programmed desorption of ammonium (NH(3)-TPD) and pyridine infrared (Py-IR) spectra revealed that alkaline treatment sequences changed both the distribution and amount of the acidities in the ZSM-5/ZSM-11-Al(2)O(3) samples. The mesopores created by alkaline treatment were found beneficial for the diffusion of aromatic molecules, as determined by the xylene-uptake experiments using a tapered element oscillating microbalance (TEOM). In 1-hexene isomerization and aromatization reactions, the sample after extrusion followed by alkaline treatment exhibited excellent aromatization activity and stability compared with other samples undergoing different treatment sequences. The enhanced catalytic performance could be attributed to the redistribution of acid sites and introduction of more mesopores. (C) 2011 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000288481000005
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/142413
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiujie,Wang, Chuanfu,Liu, Shenglin,et al. Influences of alkaline treatment on the structure and catalytic performances of ZSM-5/ZSM-11 zeolites with alumina as binder[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2011,336(1-2):34-41.
APA Li, Xiujie.,Wang, Chuanfu.,Liu, Shenglin.,Xin, Wenjie.,Wang, Yuzhong.,...&Xu, Longya.(2011).Influences of alkaline treatment on the structure and catalytic performances of ZSM-5/ZSM-11 zeolites with alumina as binder.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,336(1-2),34-41.
MLA Li, Xiujie,et al."Influences of alkaline treatment on the structure and catalytic performances of ZSM-5/ZSM-11 zeolites with alumina as binder".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 336.1-2(2011):34-41.
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